63 results about "Gasket" patented technology

A contact lens case including a body or base portion with a pair of lens-receiving wells recessed therein, a cap or cover closable to form a substantially liquid-impermeable seal around the wells, and a latch or closure assembly engageable to secure the cover in its closed position. A compressible gasket around the wells assists in forming the seal with the cover. The wells include a primary bowl portion with a tapered secondary portion extending therefrom to assist in lens removal.

In a first structure, a metal gate portion may be laterally recessed from a substantially vertical surface of a gate conductor thereabove. A cavity is formed between the metal gate portion and a gate spacer. In a second structure, a disposable gate portion is removed after laterally recessing a metal gate portion therebeneath and forming a dielectric layer having a surface coplanar with a top surface of the disposable gate portion. (We have to include the inner spacer without a metal recess). An inner gate spacer is formed over a periphery of the metal gate portion provide a reduced overlap capacitance. In a third structure, a thin dielectric layer is employed to form a cavity next to the metal gate portion in conjunction with the inner gate spacer to provide reduced overlap capacitance.

The electrode for high-voltage in-situ impedance spectroscopy measurement of the present invention and its preparation method and application belong to the technical field of in-situ measurement of electrical quantities under high-voltage conditions. The electrode consists of an aluminum oxide protective layer (3) deposited on the surface of the diamond anvil (2) and a metal film electrode (1); the metal film electrode (1) is circular in the center of the anvil surface of the diamond anvil (2), Copper wire (5) is bonded to the metal film electrode (1) on the side of the diamond anvil (2); the metal spacer (4) is used as another electrode, forming an axisymmetric electrode together with the metal film electrode (1) system. Electrodes are prepared by magnetron sputtering, molybdenum coating, aluminum oxide deposition, photolithography and chemical corrosion. The invention solves the problems of electrode fixing and sample cavity insulation, and can ignore the influence of the parasitic capacitance and inductance of the system on the measurement results, making it possible to measure the material impedance spectrum in situ with the diamond anvil under high pressure.

The invention relates to a lens driving device and belongs to the technical field of micro-cameras. The lens driving device comprises a first magnetic yoke ring, an insulation sheet, a first spring piece, a gasket, a lens carrier, a coil, a group of magnets and a second spring piece, wherein the outer profile of the first magnetic yoke ring is rectangular or circular, the insulation sheet is matched with a magnetic yoke ring cavity, the first spring piece and the gasket are placed in the magnetic yoke ring cavity, the lens carrier is provided with a lens placing cavity, the lens carrier and the coil are placed in the magnetic yoke ring cavity, and the second spring piece is placed in magnetic yoke ring cavity and provided with a group of third spring wires. The lens driving device has the advantages that a good even distribution effect is showed by the magnetic lines of the magnetic field generated by the magnets, an electromagnetic induction force of the coil obtained in an effective length range is enabled to be enlarged significantly, so that good driving characteristics are reflected, power driving power consumption can be reduced, assembly efficiency can be improved, the phenomenon that foreign bodies in the cavity drop on a sensor surface of a camera from lens carrier mating holes is avoided, wherein the phenomenon is caused by impact and vibration, so that image quality is ensured, harsh requirements of a lens optical axis degree can be met, and electromagnetic radiation generated by the coil can be prevented from affecting surrounding components.

The invention discloses a process for pressing galvanized PCB boards. The process comprises the following steps of: the first pressing step, after sequentially covering a bonding sheet, a copper foil and an elastic pad on a core board assembly to be pressed, pressing the core board assembly under the high-temperature and high-pressure condition, and pressing the bonding sheet into grooves among copper foil lines on the surface of the core board assembly; the copper removing step, after detaching the silica gel pad, removing the overlaid copper foil to expose the cured bonding sheet; and the second pressing step, after covering another bonding sheet on the semi-finished product of which an insulating sheet is removed, pressing the bonding sheet and the core board assembly to be pressed with the bonding sheet under the high-temperature and high-pressure condition. The invention also discloses a corresponding multi-layer PCB board. The invention can effectively prevent the gel shortage problem due to the excessive thickness of inner-layer copper foil lines after pressing and various quality problems caused by gel shortage, and avoids the waste of processing resources in subsequent procedures as a result of gel shortage.

Provided is a gasket capable of maintaining a high sealing property under a high temperature, in which a gasket basic substance and coverture are not sublimated or decomposed when the gasket is used under a high temperature above 500° C. The gasket for a high-temperature joint includes a gasket basic substance formed by filling a heat-resistant filler mainly composed of diatomaceous earth into gaps of a meshed metallic reinforcing member, and coverture made of a heat-resistant antifriction material mainly composed of a mixture of boron nitride and polytetrafluoroethylene resin for covering a surface of the gasket basic substance.

The gasket assembly includes a gasket layer and a separately formed shim layer. The shim layer and gasket layer are formed with at least one media-conveying opening that correspond to media-conveying passages communicating between first and second members to be clamped together and sealed by the gasket at the joint between members. The shim layer has an adhesive layer applied to its back surface 36 to enable the shim layer 14 to be adhered to original clamping face of the one of the first or second members in order to build up the surface or to cover up damage on the clamping face that could impair proper sealing with the gasket.

The invention discloses an ultra-precision machining method for a gallium oxide substrate and belongs to the technical field of machining of an original semiconductor. The ultra-precision machining method includes the following steps that firstly, slicing is conducted, wherein a gallium oxide crystal is sliced, and a gallium oxide crystal substrate blank is obtained; secondly, grinding is conducted; thirdly, polishing is conducted, namely, according to rough polishing, silk is used as a polishing gasket, rough polishing is conducted on the ground gallium oxide crystal substrate, the gallium oxide crystal substrate obtained after rough polishing is obtained, according to finishing polishing, silk is used as a polishing gasket, finishing polishing is conducted on the gallium oxide crystal substrate obtained after rough polishing, the gallium oxide crystal substrate obtained after finishing polishing is obtained, and diamond polishing paste is used as a polishing addition agent; and fourthly, cleaning is conducted. The ultra-precision machining method has the beneficial effects that green machining is conducted, and environment friendliness is achieved since the polishing paste and the silk used in the method belong to green and non-pollution consumables, and pressure cannot be caused to the environment at all; low-cost machining is achieved due to the fact that the consumables used in the method are low-cost materials; and machining steps are simplified.

The invention provides an electronic pressure controller, comprising a box body component and a flexible joint which are mutually and fixedly connected. Flow valve assemblies capable of oppositely and axially moving are arranged inside the box body component and the flexible joint; an inducting circuit board assembly and a main control circuit board assembly are fixed on the box body component (6); the inducting circuit board assembly is internally provided with a Hall switch and a pressure sensor; the main control circuit board is internally provided with an LED and a control button; and the electronic pressure controller can be conveniently installed by using a threaded clamping ring and a rubber gasket which are arranged in the flexible joint. The invention has the advantages that the flexible joint is convenient to install and the pressure sensor can accurately display pressure change of a water pump system through an LED display panel; a user can autonomously set the starting pressure through the LED display; a control circuit adopts a singlechip circuit, can be additionally provided with other functions according to the requirements of customers without changing the design of the circuit board; and the service of the water pump system can be prolonged by the temperature control protection.

The invention discloses a method for machining duplicate gears, and relates to the technical field of machining. A hobbing clamp of the duplicate gears is used, and comprises a clamp body, a core shaft provided with the two duplicate gears in a penetrating mode is arranged on the clamp body, a nut and a pressing plate are arranged at the upper end of the core shaft, and a cone portion matched with the clamp body is arranged at the lower end of the core shaft. A gasket is arranged at the position, on the outer side of the core shaft, of the upper end of the clamp body, an inner locating sleeve and an outer locating sleeve are arranged on the outer side of the gasket in sequence, and an open sleeve abutting against the inner side of the outer locating sleeve is arranged above the inner locating sleeve. The method comprises the operating steps that A, the clamp is mounted; B, a workpiece is mounted; C, hobbing is carried out; D, the workpiece is dismounted down. Compared with the prior art, the two duplicate gears can be clamped to be machined at a time, and production efficiency is high.

The present invention discloses a pneumatic nail gun, which comprises a nail tool body, a cylinder seat arranged above the nail tool body, a housing cap arranged at top end of the cylinder seat; a seal gasket is arranged inside top of the housing cap; a head valve is arranged inside the housing cap, and a spring is disposed inside the head valve; a collar is actively arranged inside the cylinder seat, a cylinder being disposed inside the cavity of the tool body; the collar can move reciprocally along a space formed between the cylinder seat and the inner step surface of the cylinder; a control valve assembly is arranged along a radical direction of the cylinder seat; a piston driver assembly is actively arranged inside a chamber being formed by an inner hole of the collar and an inner hole of the cylinder. The pneumatic nail gun can reduce the pressure oscillation when firing, increase the effectiveness of the firing for every time.

An azimuth-regulatable external pressure fixator for treating kneecap fracture without invasion is composed of a main ring body with curved lower edge and even azimuth fixing holes, a pair of fixing elastic belts and their hooks, a pressing screw bolt with nut, pressing plate, kneecap pressing plate and another pressing plate, and a detachable pad outside the pressing plate.

The invention relates to a bearing preload adjusting and locking structure for a small and special electrical machine and an implementation method. The bearing preload adjusting and locking structureincludes a rotor, a stator, a first bearing, a second bearing, a lock nut, a bearing washer, a bearing outer ring gasket and a bearing inner ring gasket, wherein the outer ring cylindrical surfaces ofthe two bearings are in contact with the cylindrical surface of a rotor shaft sleeve inner cavity; the outer ring inner end surfaces of the two bearings are in contact with the two end surfaces of arotor shaft sleeve stop; the bearing washer is assembled between the inner rings of the two bearings; the bearing outer ring gasket is installed between the first bearing and the rotor shaft sleeve stop; the bearing inner ring gasket is installed between the first bearing and the bearing washer; the lock nut is disposed on the outside of the first bearing and is in threaded connection with a stator output shaft; the threaded joint is coated with anti-loose paint; the boss at the inner end of the lock nut is in close contact with the inner ring of the first bearing; and four blind holes are machined at the outer end of the lock nut. The bearing preload adjusting and locking structure solves the problems that the locking torque of the electrical machine is uneasy to control and poor in stability, and the preload changes greatly after a strong impact.

The invention relates to the field of preparation of shoes, provides a pair of antibacterial heating graphene shoes and a preparation method thereof and overcomes defectsthat heating shoes have no antibacterial effect and are low in heating speed and low in heat dissipation efficiency in the prior art. Each shoe comprises a shoe sole and an upper arranged on the shoe sole, wherein a concave hole, a graphene heating chip and a power supply electrically connected with the graphene heating chip are arranged on the shoe sole, a breathable gasket for covering the graphene heating chip and the power supply is arranged outside the concave hole, the graphene heating chip comprises a substrate and a circuit arranged on the substrate, a surface layer of the substrate is coated with a graphene coating, and the graphene coating is prepared from raw materials in parts by weight as follows: 5-10 parts of graphene, 15-30 parts of an organic solvent, 20-25 parts of a wetting agent and 30-40 parts of a dispersing agent.

The invention discloses a self-tightening composite sealing gasket, which comprises an annular first metal plate and an annular second metal plate which are laminated to form an annular composite body. A gap is reserved in the composite body; the outer ring edges of the first metal plate and the second metal plate are fixed with each other, and the inner ring edges thereof are also fixed with each other; the inner ring edge or the position close to the inner ring edge of the composite body is provided with a medium access passage, the gap can be only communicated with the outside through the medium access passage, and when a medium comes into the gap through the medium access passage, the gap is expanded. When the gasket works, the gap can be expanded under the action of the pressure of the medium, and the compensation for sealing specific pressure can be realized by the medium transmitted by the pressure so as to achieve the self-tightening sealing effect. In order to realize the function, the self-tightening composite sealing gasket has another structure, wherein an opening is formed between the inner ring edges of the first metal plate and the second metal plate, and the inner ring edges of the first metal plate and the second metal plate are not fixed with each other; and the gap is communicated with the outside only through the opening, and when the medium comes into the gap through the opening, the gap is also expanded.

The invention discloses a multi-pin micro-Newton colloid thrustor which comprises an insulating envelope, a sleeve, through-wall joints, multi-pass, capillary pipelines, an insulating base, a metal gasket, an extracting pole, an accelerator, an insulating spacer, an insulating sleeve ring, an insulating bolt, emitting poles and leads; wherein, the capillary pipelines are connected with the multi-pass in the sleeve, the multi-pass is connected with a plurality of capillary pipelines used for outputting, and the capillary pipelines are respectively connected with the through-wall joints on the insulating base; the other end of each through-wall joint is connected with one emitting pole; the two ends of the leads are fixed on the insulating base and the insulating envelope; the bottom end of the sleeve is connected with the insulating envelope, and the top end thereof is connected with the insulating base by the insulating bolt; the insulating bolt is sequentially provided with nuts, the extracting pole, the insulating sleeve ring, the accelerator and the insulating spacer. The invention can conveniently form different types of thrustors by changing the internal diameter of the emitting pole, adjusting the distance between the emitting poles and the extracting pole, increasing or decreasing the number of the through-wall joints and the emitting poles as well as replacing the multi-pass, thus realizing different regulating ways of the performance of the thrustor.

The invention discloses a novel mixed material grid-type freezing storage box, which includes a freezing storage box body, a grid plate is arranged on the inner bottom plate of the freezing storage box body, and a clamping block is arranged on the upper surface of the grid plate. The bottom of the grid plate is provided with balls, one side of the freezer box body is provided with an air cushion layer, and the other side of the freezer box body is provided with a sealing plate, and the sealing plate is screwed to the pull ring through bolts, and A handle is welded on the outside of the pull ring, a vacuum cover is sleeved on the surface of the freezer box body, and a balance foot pad is provided at the bottom of the vacuum cover, a waterproof layer is provided on the outer surface of the grid plate, and elastic pads are provided on both sides of the waterproof layer. As for the gasket, a water storage tank is opened inside the grid plate, and an anti-overflow block is arranged on the top of the inner surface wall of the water storage tank. In the present invention, the freezer box has a simple and reasonable overall structure design, stable connection and sealing, flexible and convenient use, purifies the freezer storage environment of the freezer box, and has strong practicability.

The invention relates to a front damping system applied to a scooter, comprising two damping modules fixedly installed on a motor assembly, four damping slide rails fixedly mounted on a front fork, and damping spring sleeved on the damping slide rails; two damping slide blocks are respectively arranged at both sides of the motor assembly, and the damping slide rails are symmetrically arranged at both sides of the front fork; all damping springs are provided with pre-tightening force in installation, and two damping slide blocks are sleeved on the damping slide rails; the damping slide blocks are arranged at the bottom part of the damping spring, and leant against the damping spring. Besides, upside and downside of the damping slide blocks are provided with limiting anti-collision cushions and buffer gaskets which are made of soft materials; the soft contact is arranged among the damping slide blocks, the limiting anti-collision cushions and the buffer gaskets. The system adopts the slide block lead rail type structure; through four damping slide rails, the limit and damping of the motor are realized; the damping effect is good, and the overall structure is impact-resisting, and simple in appearance, and the system is particularly suitable for the scene with small space and high requirement on intensity and frequent shock.

The invention discloses an adhesive-dispensing ceramic coating device for preventing material mixture. The adhesive-dispensing ceramic coating device comprises a lower die head, an upper die head anda gasket. By adopting the adhesive-dispensing ceramic coating device and method for preventing material mixture, the mixing phenomenon of two types of slurry is effectively prevented during coating oftwo types of slurry, scrap caused by the mixing phenomenon during production is decreased, the pass rate of finished products after coating is improved, and the production cost is reduced.

The bottle cap gasket plugging machine comprises a first operation table and a second operation table, a first supporting plate is fixedly installed below the first operation table, a first motor is fixedly installed on the left side of the upper end of the first supporting plate, a first rotating rod is fixedly installed at the output end of the first motor, and a first rotating disc is fixedly installed at the upper end of the first rotating rod; a second supporting plate is fixedly installed below the second operation table, a traction mechanism and a supporting seat are fixedly installed on the right side of the upper end of the second supporting plate, a fixing lug is integrally formed at one end of the supporting seat, and a discharging mechanism is connected to the middle of the supporting seat in a penetrating and inserting mode; the discharging mechanism is in transmission connection with the traction mechanism, a pad adding mechanism is fixedly installed between the first operation table and the second operation table, and a positioning mechanism is fixedly installed at the upper end of the second operation table. The bottle cap gasket plugging machine is high in automation degree, low in labor intensity, compact in production rhythm, capable of effectively reducing the rejection rate of products and high in production efficiency.

The invention discloses an internal liquid-spraying rotating cathode mask electrolytic machining method and an implementation device, and belongs to the technical field of electrolytic machining. The implementation device comprises a rotary workbench, an end cover, a rotary workpiece, a mask plate, a screw, an internal liquid-spraying cathode, an electric spindle, an insulating cylinder, a gasket and a pressing ring. The implementation device is characterized in that the internal liquid-spraying cathode with liquid through holes distributed in a blade sequence and the rotary workpiece covering the mask plate rotate and do relative reciprocating linear motion at the same time, the electric field edge effect can be eliminated, lateral scouring of electrolyte to the mask plate is reduced, and the locality and machining consistency of mask electrolytic machining are improved; and the internal liquid-spraying rotating cathode is matched with mask plates in different shapes, can be suitable for high-consistency machining of micro pits, micro grooves and micro flow channels in the surface of the rotary workpiece, and has good machining adaptability.

A piezoelectric pump vibrator comprises a lower piezoelectric unit (1), an upper piezoelectric unit (2) and a middle gasket (3), the lower piezoelectric unit (1) and the upper piezoelectric unit are in the same size, and the lower piezoelectric unit (1), the upper piezoelectric unit (2) and the middle gasket (3) compose a bimorph-type electric drive vibrator. The piezoelectric pump vibrator can also only comprise the gasket (3) and the lower piezoelectric unit (1) or the upper piezoelectric unit (2), and the gasket (3) and the lower piezoelectric unit (1) or the upper piezoelectric unit (2) are adhered together to compose a single piezoelectric plate type piezoelectric drive vibrator. The piezoelectric pump vibrator is characterized in that the gasket (3) is made from multiaxial glass fiber reinforced or multiaxial carbon fiber reinforced resin, wherein every layer of multiaxial fiber is directionally arranged in a multi-angle amorphous mode. The construction method of the piezoelectric pump vibrator can effectively solve the problem of short service life of the gasket of a piezoelectric vibrator due to repeated fatigue and improve the reliability and the service life of a piezoelectric pump.

A washer assembly device for screws, comprising a frame, characterized in that: the end of the frame is provided with a pressing block that can press the gasket into the root of the screw, and the pressing block and the pressing block can drive the pressing block to move up and down The drive part of the pressing block is connected, and the side wall of the lower part of the pressing block is provided with a mounting hole for the screw to enter, and the side wall of the frame body opposite to the side wall where the mounting hole is located is provided with an inlet for the gasket to enter. The feed hole, the height of the feed hole is between the height of the pressing block and the height of the installation hole, the central axis of the feed hole and the central axis of the installation hole are located on the same vertical plane, and the outer side of the feed hole is set There is a pushing part capable of pushing the pads into the feeding hole in sequence, and the driving part of the pressing block, the pushing part, the control circuit and the power supply form a loop. Its advantages are: simple structure, small size, high gasket combination efficiency, and realizes the processing purpose of placing the gasket on the root of the screw. After the combination, the gasket and the screw are not easy to loosen, the combination effect is good, and the operation is very simple.

The invention discloses a clamping device for a confined space in a shelter power station and relates to the technical field of clamping tools. The clamping device comprises a first clamping arm, a second clamping arm and a clamping part and is characterized in that a first clamping piece is fixed at the front end of the first clamping arm, a first holding part is fixed to the rear end of the first clamping arm, and the first clamping piece and the first holding part are connected through a first connecting rod; a second clamping piece corresponding to the first clamping piece is fixed at thefront end of the second clamping arm, a second holding part is fixed at the rear end of the second clamping arm, the second clamping piece and the second holding part are connected through a second connecting rod, and the first connecting rod and the second connecting rod are connected through a hinge pin; the clamping part is connected with the first clamping piece, the clamping part is providedwith an accommodating space for accommodating a first to-be-clamped part, and the accommodating space is suitable for the mounting of a gasket and a nut in the confined space. The clamping device is novel in structure and convenient to operate.