30 results about "Small hole" patented technology

An improved axial gas bearing for a gas-driven NMR MAS sample rotor is disclosed that utilizes inward flow with a low rotational component over a rotor conical end. A conical flow region is formed between the rotor conical end and a conical stator bearing surface such that the included angle defining the stator surface is not less than the included angle defining the rotor conical end. Gas is injected radially inward with a significant axial rearward component from a number of small holes at high velocity from the periphery into the conical flow region. Compared to the radial velocity components, the tangential flow components of the injected gas are small and preferably opposed to the direction of the rotor rotation. The high and accelerating negative radial velocities may result in significant Bernoulli effect, such that the mean axial pressure over the conical rotor end may be less than atmospheric pressure for a given axial clearance, but as the clearance decreases, the hydrostatic effects exceed the Bernoulli effects and the mean axial pressure over the conical rotor end may then exceed atmospheric pressure by a substantial amount. Thus, a self-stabilizing axial bearing is formed with improved stability and stiffness for rotor surface speeds up to at least 80% of the speed of sound. Motive power required to spin the rotor may be provided by a radial-inflow microturbine at the opposite end of the rotor in a way that is readily compatible with automatic sample change.

The invention relates to a spiral forced-feeding device for shaping powder materials, which comprises a hopper (1), a driving device (2), a spiral shaft (3) coupled with the driving device, a spiral blade (3-2) attached onto the spiral shaft (3) and a spiral cylinder (4) (optional), wherein the spiral shaft (3) is a hollow shaft, and the shaft body (3-1) of the spiral shaft (3) is provided with a plurality of exhaust holes (3-5) which are communicated with a hollow channel (3-4) of the hollow shaft. Optionally, the wall of the spiral cylinder (4) is provided with a plurality of exhaust through holes. The invention also relates to a shaping system with the spiral forced-feeding device and a method for degassing the powder materials in the shaping process by using the spiral forced-feeding device or the shaping system. The invention can exhaust the air from the materials in the forced-feeding process and eliminate or reduce gas explosion phenomenon in the shaping process, thereby stabilizing the quality of shaped products and improving the shaping rate.

The invention discloses a blowout proof tire with high safety performance. The blowout proof tire comprises an outer tire, an inner tire and a hub, wherein an outer fixing steel ring and an inner fixing steel ring are arranged on the hub, the outer tire is arranged in the outer fixing steel ring in a clamping manner, and the inner tire is arranged in the inner fixing steel ring in the clamping manner; an outer cavity is formed between the outer tire and the inner tire, and an inner cavity is arranged in the inner tire; gel blocks are arranged between the inner side of the outer tire and the outer side of the inner tire, and a plurality of ventilating small holes are formed in the gel blocks; a reticular steel wire frame is inlaid on in the inner side of the inner tire, a connecting pipe is arranged at the inner parts of one sides of the inner tire and the reticular steel wire frame, one end of the connecting pipe is mutually communicated with the outer cavity, the other end of the connecting pipe is mutually communicated with the inner cavity, and a check valve is arranged on the connecting pipe in the inner cavity; a tee charging connector is arranged on the hub, and the tee charging connector is mutually communicated with the outer cavity and the inner cavity respectively.

The invention discloses a locking device and an LED display screen. The locking device includes a first lock body and a second lock body. The first lock body includes a handle and a locking lever, and the second lock body includes two locking master slices, and two locking levers, which are installed at the both ends of the handle. Annular grooves are formed in the peripheries of locked ends of the locking levers. Each locking master slice is provided with a lock hole including a large hole and a small hole which are in connection. The external diameter of the locking lever is less than the internal diameter of the large hole and is greater than the internal diameter of the small hole, and the external diameter of the annular groove of the locking lever is less than the internal diameter of the small hole of the locking hole. The first lock body is fixed on a lower box, and the second lock body is fixed on the upper box. The locking levers pass through the annular grooves and are clamped in the locking holes. During a lifting process, locking is completed only through hanging and rotating the handle and can be quickly accomplished by only one person. The handled can used for climbing.

A coaxial all-metal cam stator and rotor underground dynamical drilling tool comprises a transition joint, the transition joint is connected with a motor assembly through threads, and the motor assembly is connected with a transmission shaft assembly through threads. After being filtered through a filtering device, drilling liquid passes through the transition joint, enters an annular space between a motor base shell of an upper motor and a stator shell after passing through an upper end cover, enters a center hole of an upper rotor after acting on the upper rotor, is discharged towards a lower motor through inclined holes in the center hole of the upper rotor and continuously drives the lower motor to rotate, a part of the liquid acted by the lower motor flows out through small holes formed in a transmission shaft joint to lubricate and cool a bearing and most of the drilling liquid is sprayed out through an inner hole of a spindle of the transmission shaft and drill water holes so as to cool and clean a drill and circulate slurry. The coaxial all-metal cam stator and rotor underground dynamical drilling tool has the advantages of being resistant to abrasion, resistant to corrosion, resistant to high temperature, resistant to aging, long in service life, simple in structure and easy to machine.

The invention discloses a combination gauge for abnormal bearing inner ring pore detection. The combination gauge comprises a plug gauge and a ring gauge which is used in cooperation with the plug gauge. One end of the plug gauge is a detection end for detecting whether the size of a bearing inner ring pore conforms to the tolerance requirement or not and the other end of the plug gauge is a positioning end used in cooperation with the ring gauge. The position where the ring gauge corresponds to the bearing inner ring pore is provided with a positioning hole which is matched with the positioning end of the plug gauge in an adapted mode. The positioning end of the plug gauge and the positioning hole of the ring gauge are mutually matched and used for detecting whether the position of the bearing inner ring pore conforms to the tolerance requirement. The invention further provides a method for detecting the bearing inner ring pore with the combination gauge. The combination gauge for abnormal bearing inner ring pore detection is simple in structure, capable of effectively detecting whether the size and the position of the bearing inner ring pore conform to the requirements or not and convenient to operate as detection steps are simple. A detection structure can be conveniently and directly obtained through observation.

The invention discloses a transnasal laryngeal mask which comprises a cuff, a ventilation catheter, an inflation pipe and an indication saccule, wherein the opening at the front end of the ventilating catheter is of an incline, the cuff is fixed around the front end of the ventilating catheter, the cuff is shaped as a flat spheroid under the inflation state, a diaphragm is arranged in the cuff and is provided with a small hole, one end of the inflation pipe is communicated with the cuff, and the indication saccule is connected to the inflation pipe. The cuff and the ventilation catheter form a ventilation device, the ventilation device is implanted through the inferior nasal meatus of a patient without being implanted into the oral cavity of the patient, thus the problem of difficulties of managing the oral cavity and fixing the position in the prior art is solved, the problem of poor tolerance of the common laryngeal mask under light anaesthesia is solved, and the safety of using the laryngeal mask is improved. The invention can help a patient suffering from epistaxis carry out nasal cavity hemostasis by compression, and solves the problems of nasal cavity hemostasis and incapability of ensuring smooth nasal cavity.

A pollinating device for orchid flower is composed of an external pipe with one open end and one closed end with a through hole, a push rod with a pollinating needle on its front end inserted in said external pipe, and a compressed spring between said closed end of external pipe and the front end of said push rod. Said pollinating needle can be extended or withdrawn through said through hole for pollination.

The invention discloses a traditional Chinese medicine raw material drying system, which comprises a shell, a material inlet, a material guide plate, a turning device, a dehumidifying device, a screening device, a cold air pipe and a hot air pipe, and the material guide plate includes a first material guide The plate and the second material guide plate, the material guide plate and the turning device are all arranged inside the shell. The turning device includes a rotating shaft, a material turning plate, a material retaining net and a gas channel. The bottom of the rotating shaft is connected with the turning motor and the dehumidification device respectively. , a dehumidification motor is installed under the dehumidification device, a discharge pipe is arranged between the cold air pipe and the hot air pipe, and the screening device is connected to the bottom of the discharge pipe. The screening device includes a vibrator and a sieve plate, and the sieve plate includes a small Porous sieves, medium pore sieves and large pore sieves. The system adopts the first deflector, the second deflector, turning device, cold air and hot air alternately to dry the raw materials of traditional Chinese medicine, which can analyze the water in the raw materials of traditional Chinese medicine, and the drying effect is good; it can also dry the raw materials of traditional Chinese medicine Classify according to granularity to meet people's different needs.

The invention relates to a technology for producing paper pulp from biogas residues of fast anaerobic fermentation of straw. The problem that a large amount of wood needs to be used for paper pulp used for papermaking, so that wood resources are wasted is mainly solved. The technology comprises the following steps that 1, fresh edible leaf vegetables are squeezed and separated into vegetable juiceand vegetable residues, and the straw is cut into pieces, and is soaked in clear water for two days; 2, the edible leaf vegetable juice and the cut straw are poured in a sealed container, water is added to cover the cut straw, when a PH value reaches 6.8-7, a small hole is formed in a cover of the sealed container, a plastic hose is connected, sealing is conducted, water temperature is maintainedat 36 degrees, after fermentation is conducted for three days, a hose valve is opened, exhaust gas is discharged, and then the hose valve is closed; 3, on the fourth day, biogas is generated, a needle valve is opened, a fire is set on an hose opening for ignition, on the seventh day, biogas residue straw segments are taken out, the biogas residues are washed with clear water twice, and after thebiogas residues are subjected to pulping, the paper pulp is formed. By means of the technology for producing the paper pulp from the biogas residues of fast anaerobic fermentation of the straw, largeamounts of wood and bamboo raw materials can be saved, the papermaking cost is lower, and the utilization rate of non-wood fibers is greatly improved.

The invention discloses a method for detecting the construction quality of a crossing lane. The method comprises the following steps of pavement deflection value detection and pavement roughness detection; the pavement deflection value detection comprises the steps that the pavement deflection value is detected by adopting a Benkelman beam method, an automatic deflectometer method, a drop hammer type deflectometer method or a laser deflectometer method, the automatic deflectometer method involves three parts, specifically a testing automobile, a measuring mechanism and a data collecting and processing system, and the measuring mechanism is arranged under a testing automobile chassis; and the pavement roughness detection comprises the steps that during measurement, a continuous roughness instrument is pulled by a person or a vehicle to advance, measuring small wheels swing up and down due to uneven pavement, and a measuring rod of a displacement sensor is driven to slide up and down ina small hole groove of the sensor. According to the method, through test detection, the measured data are provided for judgment of quality defects or quality accidents, so that the property, the rangeand the degree of the quality defects or quality accidents are accurately judged, the accident loss is reasonably evaluated, the responsibility can be clear, then the construction quality is ensured,and the problem that the construction quality cannot be effectively ensured through an existing quality detection method is solved.

The invention provides a gigging fuse wire structure which comprises a fuse element extrusion device filled with a fuse element and a fuse wire nozzle arranged on the fuse element extrusion device, wherein a spout of the fuse wire nozzle is downwards formed in the top of a closed box body; a heat conduction layer is arranged on the inner surface of the fuse wire nozzle and is in heat connection with a cooling device; punching members punching the fuse element are arranged on the inner surface of the fuse wire nozzle circumferentially and uniformly. According to the gigging fuse wire structure, by the aid of the cooling of the heat conduction layer and the action of the punching members, a solidification layer with small holes is arranged outside the structure; and the solidified and restrained fuse element expands due to a swelling phenomenon of the fuse element and flows out from the small holes, and fluffs are formed.

The invention discloses an excessive-filling preventing horizontal heat-insulating gas bottle. The excessive-filling preventing horizontal heat-insulating gas bottle comprises a front sealing head assembly (2), an inner cylinder (3) and a rear sealing head (4) which form an inner liner (1), and is characterized in that a compartment (5) is arranged on the upper portion of an inner cavity of the inner liner (1), and a small hole (6) is formed in the bottom of the compartment (5), and the small hole (6) is located in the upper side of the horizontal plane where the horizontal central axis of theinner liner (1) is located. The height of the horizontal plane where the small hole of the compartment is located is effectively increased, so that non-excessive filling is achieved when residual liquid phase media exist; for the horizontal heat-insulating bottle gas, the problem that excessive filling of an existing structure gas bottle is likely to occur when the arbitrary residual liquid phasemedia exist can be well solved; when the compartment is welded to the top of the liner, the advantage that a connecting weld joint bears uniform tensile stress and accordingly has the good force bearing condition is achieved; and the excessive-filling preventing horizontal heat-insulating bottle has the advantages that the structure is simple, the processing technology is simple and convenient, and the manufacturing cost can be saved, and is suitable for being used and popularized.

The invention discloses a fully automatic capsule hole puncher. The fully automatic capsule hole puncher comprises a main frame, wherein a chassis is fixed on the main frame; a feeding opening is formed in the chassis; a plurality of semicircular groove bases are arranged below the feeding opening; the two ends of the groove bases are respectively fixed on a first supporting hub and a second supporting hub and are uniformly distributed on the first supporting hub in an annular way; a plurality of suction holes are formed in the groove bases; annular air distribution bases are fixed on the lower bottom surfaces of the groove bases; a plurality of independent suction grooves are formed in the air distribution bases; the suction grooves are communicated with the suction holes in the groove bases; a plurality of suction pipes are fixed on the second supporting hub; a plurality of air holes distributed in an annular way around the center of the second supporting hub are formed in the end surface of the left side of the second supporting hub; a fan-shaped suction base is propped against the end surface of the left side of the second supporting hub on the lower side of the feeding opening of the chassis. The fully automatic capsule hole puncher realizes the automatic machining of small holes in capsules, breaks away from manual industry, improves the production efficiency, and meanwhile saves a large amount of staff cost.

The invention relates to the technical field of spatial filtering devices, and provides a spatial filtering device. The spatial filtering device comprises a frequency division lens, a recovery lens and at least two filtering small holes, wherein the frequency division lens and the recovery lens form a confocal optical system; and the filtering small holes are positioned between a focal point of the confocal optical system and the frequency division lens and/or the recovery lens. The plurality of the filtering small holes share scattering effect of high-frequency components of a laser beam evenly, the laser power absorption of one single filtering small hole is reduced so that the safety performance is improved, and the filtering effect of various kinds of high-frequency components of the laser beam is significantly improved so that the low-pass spatial filtering function can be better realized. Since the filtering small holes are positioned far away from the focal point, the size of faculae is large, the corresponding power density is low, and spark phenomenon is not liable to occur. In addition, the size of the filtering small holes is large, the processing difficulty is reduced, the misalignment tolerance of small hole adjustment is increased, and the system is easy to operate stably.

The invention discloses a button system having the anti-loss function. The button system comprises a button and a mobile terminal in signal connection with the button, wherein the button comprises a lower cover and an upper cover covering the lower cover, wherein a surface of the upper cover is provided with four small holes used for seaming the button on the clothes, the lower cover is provided with a chamber, the chamber is fixed with a circuit board, the circuit board is provided with a button micro processor, and a button power source, a button signal transceiver, a GPS module and a button GPRS module which are respectively connected with the button micro processor, and the mobile terminal is internally provided with a mobile terminal micro processor, and a mobile terminal signal transceiver, a loudspeaker, a mobile terminal power source and a mobile terminal GPRS module which are respectively connected with the mobile terminal micro processor. If a person under guardianship is at a distance from a guardian, the button system emits alarm sound to prompt the guardian to have an eye on the person under guardianship, if the person under guardianship is lost, the positioning information can be sent by the button system to the guardian.

The invention relates to a cavity lining device for improving PECVD (Plasma Enhanced Chemical Vapor Deposition) cleaning efficiency. The cavity lining device is arranged in a cavity and comprises a ceramic ring and a lining, the ceramic ring is nested above the lining, an annular air exhaust channel is formed among the ceramic ring, the lining and a cavity wall, and a plurality of small air exhaust holes are uniformly distributed on the periphery of the ceramic ring; the lining comprises an axial air exhaust channel, the axial air exhaust channel is arranged on the outer side of the lining, and the annular air exhaust channel communicates with the axial air exhaust channel; and the problem that the positions where plasmas cannot reach on the inner wall and the bottom of the cavity cannot be thoroughly cleaned is solved, the lining device can reduce the space of the cavity, it is guaranteed that the plasmas cover the inner wall and the bottom of the cavity, the small air exhaust holes are formed in the circle of the ceramic ring, it is guaranteed that reaction gas is evenly distributed in the cavity, the ceramic ring plays a role in insulation, the relative height of the small air exhaust hole in the cavity is controlled, and the cleaning effect and the quality of a deposited thin film are guaranteed.

The invention discloses application of a leaf spring to circumcision of tubular tissues of living bodies, and belongs to the technical field of medical instruments. Specifically, the leaf spring is wound around the outer circumference of the tubular tissue of the living body to serve as a cutting board for the tubular tissue; therefore, the circumcision becomes feasible, and operations for formingopen wounds in the patient's abdomen are not needed; an operator only needs to put in the leaf spring via a surgical hole of an original laparoscopic puncture outfit, operate a clamp to hoop the leafspring on the outer wall of a vaginal tube, and circumferentially cut the position, corresponding to the leaf spring, in vagina; in the process, the inner ring surface of the leaf spring acts as thecutting board; on the one hand, different from open-type resection, wound surfaces can be minimized as few as possible, on the other hand, the procedure is completed by one step through circumferential circumcision due to the cutting board, and the efficiency is significantly better than that of existing manual opening and cutting by ultrasonic knifes.

The invention belongs to the technical field of metal machining, and particularly relates to a method for machining a face plate through cooperation of a numerical control machine tool and punching. The method comprises the following steps that (1) a decorating layer is printed on the face plate; (2) small holes and positioning holes are formed in the face plate through a fine engraving machine; (3) the face plate is punched, and a high-speed metal punch press and a grinding tool are adopted to punch the product contour; and (4) gum is pasted on a product. According to the method for machiningthe face plate through cooperation of the numerical control machine tool and punching, the product is cut and machined in a punched mode, the efficiency is high, and by adopting the cooperation technology, the product machining efficiency can be improved under the requirement of ensuring the product precision.

The invention discloses a stable controllable time-delay switch, which comprises a wiring body and a panel installed on the wiring body, and is characterized in that the inner wall of the panel is rotatably connected with a pressing cover, the inner wall of the pressing cover is fixedly provided with a partition plate, and the upper end of the partition plate is provided with a plurality of quickfalling grooves and slow release holes in a penetrating manner; the bottom of the partition plate is rotationally connected with a plurality of baffles in one-to-one correspondence with the quick falling grooves through torsional springs, a conversion groove is formed in the upper wall of the panel, and a rotating block is rotationally connected to the inner wall of the conversion groove. The magnetic fluid lamp has the advantages that the quick-falling groove and the slow-release hole which are large in hole diameter difference are formed in the partition plate, the baffle is installed at theposition of the quick-falling groove, the magnetic fluid can only pass through the slow-release hole with the small hole diameter in the upward moving process, and therefore the vertical flowing speed of the magnetic fluid is obviously different, and the lighting process of lamplight is rapidly completed; and a certain time is needed in the closing process, the effect of delayed closing is achieved, electronic equipment is not involved, the manufacturing cost is lower, and the service life is longer.

The invention relates to a dustproof facility for tunnel dust catching, in particular to a high-pressure dust-catching spraying device capable of moving and lifting. The high-pressure dust-catching spraying device capable of moving and lifting mainly comprises an electromotor, a cylindrical cross shaft, a lifting device, a vertical telescopic device, a horizontal hollow water guide pipe, a spraying head, pulleys, a dust-catching net and the like. The electromotor can drive the cylindrical cross shaft through a belt to rotate, and a cross rod rotates to drive a rope to lift and bring down the horizontal hollow water guide pipe. Through ascending and descending of the horizontal hollow water guide pipe, a spraying area of the spraying head on the horizontal hollow water guide pipe covers thewhole dust-catching net. One end of the vertical telescopic device is fixed on a bracket and the other end of the vertical telescopic device is fixed on the horizontal hollow water guide pipe, so that the vertical telescopic device can only vertically move but cannot rotate. The front end of the spraying head is a convex surface, small holes are densely distributed in the convex surface and the convex surface enables the spraying area to be enlarged. The pulleys are arranged on bracket feet, so that the whole device can move to any position easily. The high-pressure dust-catching spraying device capable of moving and lifting is convenient to move, the covering range can be regulated and controlled, the dust of the working surface is reduced and the environment of the working surface is improved.

The invention provides an indoor natural radiating device. The indoor natural radiating device comprises a wall surface and a plurality of air guiding pieces with the cut-off bottoms. The wall surfaceis provided with a plurality of fixed holes and provided with an indoor side and an outdoor side. The air guiding pieces are arranged in the corresponding fixed holes in a penetrating mode and provided with small-hole-diameter sections and large-hole-diameter sections which communicate with each other. The small-hole-diameter sections are fixed to the corresponding fixed holes in a penetrating mode, a part of the small-hole-diameter sections is exposed on the indoor side, the other part of the small-hole-diameter sections is exposed on the outdoor side, and the large-hole-diameter sections are located on the outdoor side. Recycled plastic bottles which are hollow after the bottoms are cut off can be utilized to be arranged on the wall surface of a building or the iron sheet wall surface of an iron sheet house, so that the temperature of air flowing to the indoor space in a guided mode is lower than that the outdoor temperature, and accordingly the effects of indoor natural radiating and cooling are achieved.