13 results about "Screw joint" patented technology

The invention relates to a water meter detecting device, in particular to a semi-automatic series water meter verifying and calibration device which comprises a device body, a PLC, a meter clamping mechanism, a constant-pressure mechanism, a constant-temperature mechanism, a flow regulating valve, a water tank, an image collecting device and a water pipe. The meter clamping mechanism comprises a water meter frame and a plurality of water meter screw joint fasteners, the constant-pressure mechanism comprises a water pump, a frequency converter, a pressure stabilizing tank and a pressure sensor, and the water pump, the pressure stabilizing tank and the pressure sensor are connected to the water pipe in series. The pressure sensor is further electrically connected with the PLC, the PLC is further electrically connected with the frequency converter and the water pump in sequence, and the constant-temperature mechanism comprises a water cooler, an immersible pump and a temperature sensor. The immersible pump is arranged in the water tank and communicated with the water cooler, the temperature sensor is arranged in the water tank, the water cooler, the immersible pump and the temperature sensor are all electrically connected with the PLC, and the flow regulating valve is connected to the water pipe in series and connected with the PLC.

The invention discloses a mark pen, and relates to the technical field of mark pen manufacturing. The mark pen comprises a pen container and an ink core pipe arranged in the pen container. The ink core pipe is provided with a pen point stretching out of the front end of the pen container. An ink storage bottle is arranged at the part, above the ink core pipe, of the pen container and comprises a bottle body with an ink injection hole formed in the lower portion, and a bottle cap arranged on the top of the bottle body. The bottle cap is provided with a conical center hole with the large upper portion and the small lower portion. A transition pipe provided with an ink injection channel is arranged above the bottle cap through a spring. The transition pipe is provided with a conical pipe part matched with the conical center hole of the bottle cap and a positioning part embedded in the inner wall of the pen container in a connected manner. A threaded hole and a conical hole with the large upper portion and the small lower portion are formed in the top of the ink injection channel of the transition pipe, wherein the conical hole is located below the threaded hole. The transition pipe is in screw joint with the pen cap through the threaded hole. Compared with the prior art, ink can be added in the mark pen, and the problem that existing mark pens cannot be cyclically used is solved.

The invention provides a liquid mixing faucet. The faucet comprises a shell, wherein a liquid mixing branch pipe is arranged in the shell, a liquid inlet side pipe is arranged on one side of the liquid mixing branch pipe; the liquid inlet side pipe is buried in a faucet mounting table and is exposed below the faucet mounting table; a liquid soap bottle is fixedly connected below the faucet mounting table through a screw joint, a part of the liquid inlet side pipe is immersed in the liquid soap bottle; a liquid mixing chamber is further arranged above the liquid mixing branch pipe, and a liquidmixing rotating wheel is arranged in the liquid mixing chamber. According to the faucet, the liquid mixing branch pipe is selected, water flows from the liquid mixing branch pipe to generate negativepressure on the liquid inlet side pipe orifice, so that liquid soap can be drawn out from the liquid soap bottle through the liquid inlet side pipe, enters into the liquid mixing chamber to be diluted and mixed along with the liquid inlet side pipe, and finally flows out of the faucet; the concentration of the liquid soap in the mixed liquid is low, so that the damage to the skin can be reduced,in addition, the faucet can also select a normal water inlet pipe to enter the water for cleaning, so that the faucet is very convenient to use, the trouble of breeding bacteria is avoided by the liquid soap bottle, and a closed system is formed by the faucet, so that breeding of flying insects is avoided.

The invention discloses an effusion treatment device for neurosurgery clinics. The device comprises a casing, wherein a handle is mounted on the right side of the bottom end of the casing, a barrel ismounted in the center of the left side of the casing, a joint is mounted in the center of the left side wall of the barrel, a first slide and a second slide are arranged at the upper end and the lower end of the outer wall of the casing in the left-right direction respectively, one end of a guide rod is mounted on the left side of an inner cavity of the casing in the circumferential direction, the other end of the guide rod is fixedly connected with the right side of the inner cavity of the casing, a round plate capable of moving left and right is connected with the left side of the outer wall of the guide rod in a sleeving manner, a piston is inserted into the left side of the inner cavity of the barrel, a threaded rod is in screw joint with the center of the round plate, and the left side of the threaded rod is fixedly connected with the center of the right side of the piston. The effusion treatment device for the neurosurgery clinics can be stably operated by a doctor with one handand is flexible to use, trace adjustment and extraction can be carried out at the later stage of effusion extraction, effusion remaining or brain damage is prevented, and popularization is facilitated better.

The invention discloses a feed hopper on mining iron removal equipment. The feed hopper comprises a hopper, wherein a tapered hopper body is shaped on the lower end of the hopper; a plurality of material outlets are shaped on the lower end of the hopper body; the rear end surface of the hopper body is fixedly provided with an inclined flow guiding plate; the front end of the flow guiding plate ispositioned just below the front end surface of the hopper body; a corrugated material blocking plate is arranged above the front part of the flow guiding plate; a gap is formed between the material blocking plate and the flow guiding plate; the wave crests of the material blocking plate just face the material outlets on the hopper body; the wave troughs of the material blocking plate are distributed between adjacent material outlets; the upper end of the material blocking plate is fixed on the front end surface of the hopper body; two side walls of the hopper are independently fixedly providedwith a T-shaped bracket plate; a plurality of horizontal supporting plates are shaped on each bracket plate; a stand column is abutted against the lower end surface of each supporting plate; and a stud is formed on the upper end of each stand column and penetrates through each bracket plate to be in screw joint with a nut.

The invention discloses mail pile and letter box separating equipment. The mail pile and letter box separating equipment comprises a machine frame, a turning device, a conveying device, a letter box positioning device, a mail separating device, a downward-insertion air cylinder assembly, a mail pile pushing device and an empty letter box pushing device. The turning device comprises a turning hinged shaft, a turning body and a turning air cylinder. The turning hinged shaft, the turning body and the turning air cylinder are all connected with the machine frame. The turning body can rotate by 30 degrees. The turning body is connected with the turning air cylinder. The conveying device, the letter box positioning device, the mail separating device, the downward-insertion air cylinder assembly, the mail pile pushing device and the empty letter box pushing device are all in screw joint with the turning body. The mail pile and letter box separating equipment is newly designed, and the domestic and foreign blank is filled; compared with pure manual operation, by means of the mail pile and letter box separating equipment, full mechanization and full automation of the separating process and the output process of the EMS (enhanced message service) file mail piles and the containing letter boxes are achieved, unmanned operation is achieved, and the labor cost is reduced greatly for enterprises.

The invention discloses a letter box device which comprises an outer frame. An inner screw joint hole is formed in the bottom of the outer frame. A bolt column is arranged in the inner screw joint hole in a matched mode. An empty groove expanded left and right is formed inside the outer frame. A left sliding connection groove and a right sliding connection groove are equally formed in the left and right ends of the bottom end of the empty groove. A first electric motor is arranged in the portion, between the left sliding connection groove and the right sliding connection groove, of the outer frame. A left screw joint rod and a right screw joint rod are equally arranged in the left sliding joint groove and the right sliding joint groove respectively. A left extrusion element and a right extrusion element are arranged on the left screw joint rod and the right screw joint rod in a matched mode respectively. The letter box device is simple in structure, low in production cost and easy and convenient to operate, the working efficiency of extrusion and molding of a letter box panel is greatly improved, waste of manpower and material resources is reduced, the extruded and molded letter box panel is firm and reliable and can be taken down conveniently and rapidly, and the flatness and the attractiveness of the letter box panel are effectively improved.

The invention discloses a height-adjustable motion high ladder. The height-adjustable motion high ladder includes four bases; the tops of the bases are hinged to rotatable columns; screw-joint columns extending upward are arranged on the centers of top end surfaces of the rotatable columns; the screw-joint columns are screw-jointed in screw-joint holes formed in the centers of bottom surfaces of lifting sleeves; the lower ends of rotatable handles are hinged to side walls of the rotatable columns, the upper parts of the rotatable handles are pressed against the side walls of the rotatable columns; permanent magnet blocks are nested and fixed in positioning grooves formed in the side walls of the rotatable columns; the upper parts of the rotatable handles are attracted on the permanent magnet blocks; two ends of upper cross beams are fixedly provided with connection blocks; two connection blocks are fixed on the left and right lifting sleeves which are corresponding to each other; two ends of two longitudinal beams are fixedly welded on the left and right ends of the two upper cross beams; and two ends of a plurality of intermediate beams are fixedly welded on the two longitudinal beams. The height adjustment of the lifting sleeves can be achieved through the rotatable columns, and different lifting demands can be met; and the height-adjustable motion high ladder is wide in lifting range, is good in effect, and is high in efficiency.

The invention relates to a gas seal threaded joint structure suitable for SAGD thermal production well pipe column connection. The structure comprises a male end A and a female end B, wherein the female end B comprises a female thread E with taper, a tool withdrawing groove, a female sealing surface G and a female shoulder J, and the male end A comprises a male thread C with taper, a male sealingsurface F and a male shoulder H; the female sealing surface G comprises a conical surface and a cylindrical surface, the conical surface is connected with the tool withdrawing groove, and the cylindrical surface is connected with the female shoulder J; the male sealing surface F comprises an arc surface, one end of the arc surface is in transition with the male thread C directly or through a cylindrical surface, the cylindrical surface is tangent with the arc surface, and the other end of the arc surface is in direct transition with the male shoulder; and when the male end and the female end are screwed in place, the male thread C and the female thread E are meshed with each other, the female sealing surface C and the male sealing surface F are sealed through interference contact of the conical surface and the arc surface, and the male shoulder and the female shoulder are opposite to each other. Under the complex working conditions of high-temperature circulation and internal pressurecirculation of a pipe column, excellent sealing integrity and structural integrity are provided for connection of the pipe column.

The invention discloses a full spray welding high-temperature-resistant anti-corrosion sucker rod. The full spray welding high-temperature-resistant anti-corrosion sucker rod comprises an external thread connector, a bolt, a ball and a nut, wherein one end of the external thread connector is connected with a pushing and bearing face shoulder, one end of the pushing and bearing face shoulder is connected with a wrench square diameter, one end of the wrench square diameter is connected with a rod body, one end of the rod body is connected with a connector, a fixture block is connected to the surface of the pushing and bearing face shoulder, a clamping block sleeves the surface of the rod body, and a rotating shaft is connected into the clamping block in a penetrating mode. According to the full spray welding high-temperature-resistant anti-corrosion sucker rod, a clamping bolt is rotationally connected with a connecting block through a connecting shaft, a limiting block is slidably connected with the clamping bolt, the clamping bolt is clamped into the fixture block by rotating the external thread connector into the connector and rotating the clamping bolt, and the limiting block is clamped with an arc-shaped groove of the fixture block by sliding the limiting block; the nut is rotated to limit the limiting block, so that the stress at the connecting part of a product is dispersed, and the purpose of preventing the product from being broken is achieved.