73 results about "Elastic cylinder" patented technology

The invention provides a double-layer packer for coal mine hydraulic fracturing and a testing method thereof, and the double-layer packer comprises a central inner pipe which is through in the axial direction and is provided with at least one water through hole which is through in the radial direction of the central inner pipe; the central inner pipe is sleeved with the first elastic cylinder, a first expansion cavity is formed in the outer side of the central inner pipe, and the water through hole is located in the first expansion cavity; and the second elastic cylinder is arranged on the center inner pipe in a sleeving mode, a second expansion cavity is formed in the outer side of the center inner pipe, the first expansion cavity is located in the second expansion cavity, and a metal net is arranged on a cylinder body of the second elastic cylinder. According to the double-layer packer for coal mine hydraulic fracturing and the testing method of the double-layer packer, the success rate of hole sealing and pressure maintaining can be guaranteed, the construction efficiency is improved, and the fracturing engineering material cost is effectively reduced.

The invention belongs to the technical field of filter element detection, and particularly relates to a filter element detection device and method for an air filter. Comprising a frame; a filter element; an electric expansion piece is mounted in the center of the inner bottom of the frame; a plurality of elastic cylinders are mounted on the side wall of the output end of the electric expansion piece; the elastic column body is connected with an arc-shaped clamping block; when the filter element is placed in the frame, the output end of the electric expansion piece is located in the filter element center hole, and the moving path of the arc-shaped clamping block covers the hole wall of the filter element center hole. One opposite outer side of the frame is connected with a guide sliding column, and the other opposite outer side of the frame is connected with a driving motor; a displacement lead screw is installed on the inner side of the frame. The output end of the driving motor is rotationally connected with the displacement lead screw. End points of the two displacement lead screws are oppositely arranged. Movable closed half boxes are arranged on the two sides of the filter element; therefore, the stability of the filter element during detection is improved, the detection precision of the filter element is ensured, the detection effect of the device is further improved, and the limitation of the device during use is reduced.

The utility model discloses an egg candler for baby chick hatching, which relates to the technical field of baby chick hatching and comprises a barrel, a mounting cover is mounted at the irradiation end of the bottom end of the barrel in a threaded manner, a first connecting ring is mounted on the outer side of the bottom end of the mounting cover, and an egg candling head is mounted at the bottom end of the mounting cover. An elastic protection assembly is installed on the outer side of the bottom end of the egg candling head and comprises an elastic cylinder, a protection gasket, a second connecting ring and connecting springs, the second connecting ring is installed on the outer side of the top end of the elastic cylinder, and the connecting springs are symmetrically installed at the top end of the second connecting ring; the top end of the connecting spring is connected with the bottom of the first connecting ring, and the elastic cylinder is installed on the outer side of the bottom end of the egg candling head through the connecting spring. The elastic cylinder is installed through the connecting spring and has elasticity when making contact with the egg shell, so that the situation that the egg is damaged due to collision generated when the elastic cylinder makes contact with the egg shell is avoided, and meanwhile the situation that the egg is damaged due to the fact that pressure on the egg is too large when the egg is irradiated and checked is avoided.

The invention discloses a steel pipe machining clamping device, and particularly relates to the technical field of metal machining machinery, the steel pipe machining clamping device comprises a device table, fixed conduction plates symmetrically arranged on the device table and a sliding loading plate connected to the fixed conduction plates in a sliding mode, and a rotatable rotating cylindrical block is installed on the sliding loading plate through a square fixing plate. A plurality of trapezoidal grooves are formed in the rotating cylindrical block in the circumferential direction, clamping square rods capable of moving in the radial direction are connected into the grooves through threaded rods, and a plurality of elastic cylindrical rods are connected to the clamping square rods through springs. The hydraulic cylinders drive the sliding loading plates to move oppositely so that the elastic cylindrical rods can stretch into the two ends of the steel pipe, then the clamping square rods can expand in the radial direction by rotating the threaded rods, the elastic cylindrical rods are tightly attached to the inner wall of the steel pipe under the action of the springs, and multi-point elastic clamping from the inner wall is achieved. The transmission system is driven by the motor to drive the clamped steel pipe to rotate, so that machining operation in the circumferential direction is facilitated. The device is stable in clamping, can effectively prevent the outer wall of the steel pipe from being damaged, and adapts to steel pipes of different specifications.

The utility model belongs to the technical field of supports, and discloses a ground disaster investigation monitoring instrument support which comprises an annular base, a supporting rod, a mounting base, ground nails, mounting holes, a mounting block and a fixing assembly. A mounting cylinder is arranged at the bottom of the mounting block, a plurality of sliding holes are horizontally formed in the mounting cylinder, sliding rods are slidably arranged in the sliding holes, and a first through hole is formed in the mounting block; a first connecting pipe is arranged in the first through hole, the lower end of the first connecting pipe communicates with a cylindrical air bag located in the mounting barrel, and the end, located in the mounting barrel, of the sliding rod makes contact with the outer wall of the cylindrical air bag. The cylindrical air bag is inflated through the first connecting pipe, so that the cylindrical air bag expands to push the sliding rod, and the sliding rod is far away from the outer end and abuts against the inner wall of the hole in the ground. When one sliding rod makes contact with a firm stone and cannot slide outwards, the sliding rod at the position does not slide, due to the fact that the cylindrical air bag is elastic, the cylindrical air bag can still push the other sliding rods to slide and extrude the inner wall of the hole, and the fixing effect is guaranteed.

The invention relates to a fetal head suction midwifery device for the obstetrics and gynecology department and belongs to the technical field of medical instruments. The fetal head suction midwifery device for the obstetrics and gynecology department comprises a supporting cylinder, an adsorption head and an adjusting assembly, a piston is slidably connected to an inner cavity of the supporting cylinder, and the two sides of the piston are connected with an air suction cylinder and an extension cylinder respectively; the adsorption head annularly surrounds the periphery of the supporting cylinder and comprises a fixed cylinder and an elastic cylinder, the fixed cylinder is connected with the supporting cylinder, and the elastic cylinder is arranged on the side, away from the supporting cylinder, of the fixed cylinder; the adjusting assembly is arranged in an inner cavity of the fixing cylinder and comprises a limiting cylinder, an adjusting block and a plurality of connecting ropes, the limiting cylinder is connected with the fixing cylinder, a plurality of clamping grooves distributed in the axial direction of the limiting cylinder are formed in the inner wall of the limiting cylinder, the adjusting block is slidably connected with the inner cavity of the limiting cylinder, a clamping rod is arranged in the adjusting block and used for being clamped with the clamping grooves, and one ends of the connecting ropes are connected with the adjusting block. The other end is connected with the elastic cylinder; and the connecting rope is configured to be tightened under stress so as to reduce the diameter of the elastic cylinder, or released under unloading so as to increase the diameter of the elastic cylinder.

The invention relates to a kind of emulsion extrusion equipment, including milking barrel, the head of the milking barrel is movably inserted with replaceable milking sleeve, the tail of the milking barrel is connected with horn barrel, the lower end of the horn barrel is connected with connecting pipeline, and the connecting pipeline is connected to the collecting barrel.By the structure of annular air bag, air pipe, adjusting cavity, elastic pull rope and elastic cylinder, when vacuum machine stops working or fails, the negative pressure in the elastic cylinder channel reduces, the adjusting cavity is dragged by elastic pull rope and is extruded to make gas enter annular air bag, so that annular air bag is inflated to strengthen the extrusion of elastic extrusion cylinder and isolation cylinder, can continuously clamp nipple and not fall, avoid negative pressure stop extrusion equipment from falling and cause pollution.

The utility model belongs to the technical field of oil and gas exploitation, and discloses a packer which comprises a central pipe, an elastic cylinder, an expansion pipe and a sealing assembly. A first liquid transfer hole is formed in the pipe wall of the central pipe; the center pipe is sleeved with the elastic cylinder, the two ends, in the axial direction, of the elastic cylinder are connected with the center pipe in a sealed mode, a first elastic cavity is defined by the outer circumferential wall of the center pipe and the inner circumferential wall of the elastic cylinder, and liquid in the center pipe can enter the first elastic cavity through the first liquid conveying hole; the elastic cylinder is sleeved with the expansion pipe, the two ends of the expansion pipe in the axial direction are both connected with the elastic cylinder in a sealed mode, a second elastic cavity is defined by the outer circumferential wall of the elastic cylinder and the inner circumferential wall of the expansion pipe, a second liquid conveying hole is formed in the expansion pipe, and external liquid can enter the second elastic cavity through the second liquid conveying hole; the sealing assembly is arranged outside the expansion pipe. The packer has an internal and external pressure balancing function, can still keep reliable setting under high pressure, and reduces the difficulty of staged fracturing operation under high temperature and high pressure.

The utility model provides a high-strength engineering machinery bolt, and belongs to the technical field of bolts. The high-strength engineering machinery bolt comprises a connecting assembly and a protection assembly, limiting grooves are formed in the two sides of a screw rod, firstly, the end of the screw rod can be protected through sliding clamping connection of a telescopic cylinder and an elastic clamping ring, the end of the screw rod is located in the telescopic cylinder, and it is avoided that threads at the end of the screw rod rust due to long-term contact with air; meanwhile, the telescopic cylinder is conveniently disassembled and assembled in a clamping connection mode, the limiting block slides into the limiting groove through the elastic force of the elastic cylinder, the connection stability between the nut and the screw can be enhanced, the nut can be prevented from being separated from the screw, the limiting block can be separated from the limiting groove by pushing the shifting block, and the operation is convenient. And the nut can be rotated, so that the end position of the screw rod can be protected, the nut can be conveniently disassembled, meanwhile, the nut and the screw rod are prevented from loosening, and therefore the practicability is improved.

The utility model discloses a wireless charger, and the charger comprises a pedestal which is provided with a first installation part and a second installation part which are sequentially disposed in a first direction; a first upper cover; the lower end of the elastic cylinder is connected to the first mounting part, the upper end of the elastic cylinder is connected to the first upper cover, and the elastic cylinder, the first upper cover and the first mounting part define a first accommodating cavity for accommodating a charging module and a lifting mechanism; the charging module is connected with the first upper cover and the driving end of the lifting mechanism; the second upper cover is provided with ventilation holes and connected to the second mounting part, and the second upper cover and the second mounting part define a second containing cavity for containing a control module and a heat dissipation module; and the base is provided with a communicating channel for communicating the first accommodating cavity with the second accommodating cavity.

The utility model relates to the technical field of swings, in particular to a swing with a lifting rope convenient to replace, which comprises a seat plate and a lifting rope, through holes are formed in the front and rear sides of the left and right ends of the seat plate, and one end of the lifting rope sequentially penetrates through the two through holes in one side of the seat plate and is connected through a fixing component; the fixing part comprises a fixing block, round holes are formed in the upper end and the lower end of the front side and the rear side of the fixing block, a strip-shaped hole is formed in the outer end of the fixing block and communicates with the round holes, a push plate is slidably connected into the strip-shaped hole, a plurality of first teeth are evenly and fixedly installed on the side wall of the inner end of the push plate, and a movable plate is detachably installed at the outer end of the push plate; the lifting rope replacing device has the beneficial effects that when a lifting rope needs to be replaced, a bolt is screwed off from a threaded hole, a movable plate and a push plate can be pulled outwards, first teeth are separated from the lifting rope, then a top plate is pinched and pulled upwards, an elastic cylinder is separated from a round hole, the elastic cylinder is recovered, the elastic cylinder is separated from the lifting rope, and the lifting rope can be pulled out from the round hole, so that the lifting rope is convenient to replace.

The utility model relates to the technical field of filler compactness detection, and particularly discloses a roadbed filler compactness detection device which comprises a bearing plate, a connecting rod connected above the bearing plate, a connecting cylinder arranged at the bottom of the connecting rod, an elastic cylinder arranged at the top of the connecting cylinder, a drop hammer connected to the middle of the connecting rod, and a limiting rod connected to the top of the connecting rod. And an embedding groove is formed in the connecting cylinder, a deflection rod is connected in the embedding groove, one side of the deflection rod is connected with an abutting assembly, and the abutting assembly swings along the shaft. Through the deflection rod and the abutting assembly arranged in the device, when the connecting cylinder is connected with the bearing plate, deflection can be conducted through contact pressure application, so that the connecting cylinder can adapt to bearing plate connecting columns with different diameters, the universality of the connecting cylinder is better, the connecting stability is better, and the situation that shaking influences impact is generated is avoided.

This invention discloses an easy-to-operate new energy charging pile, belonging to the field of new energy charging piles. It includes a charging pile and a charging gun. A fixed cylinder is fixedly installed on the charging pile, and a fixed component is provided on the charging gun. An adjustment component is provided inside the charging gun. The fixed component includes a handle fixedly installed on the charging gun, an elastic cylinder fixedly installed on the charging gun, and a fixed plate fixedly installed on the elastic cylinder. A connecting component is installed between the fixed plate and the charging gun. A plug is slidably installed through the fixed plate, and a cylinder is fixedly installed on the plug. This design allows the operator to adaptively adjust the tilt angle of the plug according to needs. Simultaneously, the pushing component effectively ensures that the plug on the charging gun remains parallel to the charging port during insertion or removal, improving contact and effectively reducing mechanical wear.

A high-speed jaw type one-way clutch comprises an outer sleeve, an L-shaped lining, a clutch disc, a fastening handle, a lower shaft sleeve, a jaw disc and an elastic cylindrical pin, the lower shaft sleeve is sleeved with a screw hole of the outer sleeve through external threads, a step hole in the upper end of the lower shaft sleeve is sleeved with the lower end of the jaw disc, the elastic cylindrical pin is connected, and clutch teeth of the jaw disc are attached to a clutch disc roller carrier. The upper end of the clutch disc is sleeved with an inner hole of the L-shaped bush, the upper side of the large end of the clutch disc is attached to the lower side of the large end of the L-shaped bush, the small end of the L-shaped bush is sleeved with an inner hole in the upper side of the outer sleeve, and the upper side of the large end of the L-shaped bush is attached to a step in the upper side of the outer sleeve. And the fastening handle is sleeved in the lower shaft sleeve screw hole A and the outer sleeve screw hole B. The idler wheel and the clutch teeth form a rolling pair, friction force is small, needed axial component force is small, abrasion is greatly reduced, rigid collision between the idler wheel and the tooth embedding disc is avoided through nylon materials, impact loads can be effectively absorbed through the compression spring and the elastic cylindrical pin, clutch frequency and separation reliability can be both considered, and the running speed is effectively increased. The utility model also has the functions of a safety clutch and an elastic coupling.

This application relates to a flexible circuit board for convenient single-sided installation, comprising a flexible circuit board, a circuit board, and a docking assembly. The docking assembly is disposed between the flexible circuit board and the circuit board. The sidewall of the flexible circuit board has multiple first pins, and the sidewall of the circuit board has multiple second pins that match the first pins. The docking assembly includes a docking member with a fixing hole. A lower pressure plate and an arc-shaped pressure block are disposed within the fixing hole. Three elastic cylinders are fixedly connected to the upper end of the docking member, and a return spring is fixedly installed within each of the three elastic cylinders. This invention, by setting the docking assembly between the flexible circuit board and the circuit board, allows the docking assembly to be removed from between the flexible circuit board and the circuit board when maintenance or replacement is required, effectively avoiding accidental damage to the circuit board during maintenance and thus preventing increased usage costs.

The utility model discloses a kind of biological base environmentally-friendly lubricating oil production efficient mixing devices, it is related to mixing device technical field, including mixing tank, top cover and stirring shaft, the top end of the top cover is rotatably installed with rotating ring, the inside of the top cover is rotatably installed with synchronous ring, the inside of the synchronous ring is rotatably installed with two feed pipes, the outside of the feed pipe is fixedly installed with two sealing sleeves, the two side ends of the feed pipe are connected with synchronous ring by pivot, the top end of each feed pipe is fixedly installed with elastic cylinder, when guide rail plate slides, drive electric telescopic rod reverse telescoping, drive plug rod to leave the socket of support frame inside, so that guide rail plate can slide freely, when guide rail plate slides to suitable position, forward telescoping electric telescopic rod, electric telescopic rod generates thrust to plug rod, so that plug rod slides and inserts the socket of support frame inside, to fix the position of guide rail plate, guarantee the stability of feed pipe spatter angle.

The invention discloses an FBG (Fiber Bragg Grating) cable force meter externally arranged on an inhaul cable rib material and an installation method thereof, and relates to a cable force monitoring device of a prestressed cable body and an installation method thereof, the cable force meter comprises an FBG and an elastic cylinder, and the elastic cylinder is fixedly connected to the inhaul cable rib material; n through axial mounting grooves are uniformly formed in the elastic cylinder along the circumference, and n is greater than or equal to 1; the fiber bragg grating is installed in the axial installation groove, the elastic cylinder is a rigid cylinder body, a structure for reducing the axial deformation rigidity is arranged in the middle of the cylinder body, and the structure is a spiral groove or an annular groove formed in the outer wall of the circumference of the middle of the rigid cylinder body. The method comprises the following steps: firstly, fixing the fiber bragg grating in the axial mounting groove of the elastic cylinder, then sleeving the elastic cylinder on a to-be-tested rib material, and fastening and connecting the elastic cylinder and the to-be-tested rib material; the force value calibration coefficient is obtained, and the stress monitoring of the whole cable bundle is realized. The device is suitable for installation with limited space, and has the characteristics of low cost, low installation difficulty, guarantee of structural safety, improvement of cable force monitoring precision and the like.

This invention belongs to the technical field of mulching equipment, specifically relating to a tree trunk mulching device for nighttime sap flow detection. It includes a main rod, a first support rod, and a membrane rod. Two second support rods are fixedly connected to the main rod. A membrane pressing assembly is provided on the outward-facing side of each second support rod. The membrane pressing assembly includes a rotating wheel, which is rotatably connected to the second support rods via a shaft. The rotating wheel has a wheel housing, which includes a shell and a rotating body. The shell is mounted on the rotating wheel, and the rotating body is rotatably connected to the side wall of the shell facing the second support rods. The rotating body has a keyed through hole for the shaft to pass through. An elastic cylinder is provided between the shell and the rotating wheel. An elastic strip is provided on the outer wall of the elastic cylinder, and a groove is provided on the circumferential wall of the shell for the elastic strip to pass through. This invention addresses the problem of poor sealing and waterproofing due to the difficulty of the membrane adhering tightly to the tree trunk in recessed areas.

The utility model discloses a rockshaft end face eccentric hole automatic aligning and pressing device which comprises a floor, an automatic aligning device body, a machined part and an unmachined part, three sets of clamps are arranged at the top of the floor, an L-shaped end face positioning block is arranged on one side of the top of the floor, and the middle of the top of each clamp is in threaded connection with a hexagon socket screw A; according to the utility model, the L-shaped end face positioning block, the clamp, the pressing plate, the inside hexagonal bolt A, the cylindrical bolt, the mandrel fixing stop block, the thrust spring, the automatic alignment device body, the diamond taper pin and the pressing plate spring are matched with one another, so that the device adopts the principle that two points determine a straight line and four pins automatically align a parallel horizontal plane; the automatic alignment accessory body and the automatic alignment device body adopt an elastic cylindrical taper pin and diamond taper pin structure and a left U-shaped groove and right U-shaped groove design, and the automatic alignment accessory can automatically align and position an oil hole and automatically eliminate shape and position errors of a shaft hole and assembly errors of a clamp.

The disclosure provides a massager, an accommodating hole is provided on a housing, a sleeve body is axially provided in a cavity of the accommodating hole, and the sleeve body is in running fit with a cavity wall of the accommodating hole; an elastic cylinder body is fixed in a cavity of the sleeve body, and a plurality of elastic protrusions are distributed on a cavity wall of the cylinder body; and a side portion of the accommodating hole forms a first housing cavity, a first driving motor is provided in the first housing cavity, and the first driving motor is in transmission fit with the sleeve body via a transmission mechanism. The first driving motor drives the elastic cylinder body to perform rotary motion to facilitate massage, so as to promote blood circulation of corresponding massaged region and improve comfort.

The invention provides a wind energy conversion device capable of adjusting resonant frequency, which belongs to the technical field of wind energy power generation and comprises a wind energy conversion system, a resonant frequency adjusting system and an electric energy output conversion system. The wind energy conversion system is used for capturing wind energy in a wind field and converting the wind energy into mechanical energy; the resonance frequency adjusting system is installed between the wind energy conversion system and the electric energy output system, used for adjusting the inherent frequency of the whole device and comprises threaded steel, the upper end and the lower end of the threaded steel are connected with a first light elastic cylinder and a second light elastic cylinder correspondingly, and two mass blocks are installed on the threaded steel. The mass block moves up and down on the deformed steel bar to adjust the mass center of the device; the electric energy output conversion system is connected with the lower portion of the resonance frequency adjusting system and used for converting the mechanical energy captured by the wind energy conversion system into electric energy. The output power and the power generation efficiency of the electric energy conversion output system are improved, the system can operate at a low wind speed, and the application range is wider.

This utility model discloses a riveting device for assembling thermostatic valve core components, used for assembling elastic cylinder assemblies. It includes an operating seat, a positioning seat, a pressure applying unit, a fixing seat, and a riveting unit. The positioning seat has a base installed at the center of the operating seat and a positioning pin head disposed on the top of the base. The pressure applying unit is installed on one side of the operating seat and has a pressure applying arm that can rise and fall relative to the positioning pin head, and a pressure applying drive cylinder for driving the pressure applying arm to rise and fall. One end of the pressure applying arm extends above the positioning seat and has a pressure applying port that is vertically opposite to the positioning pin head. The fixing seat is installed at the rear end of the operating seat, and its front end forms a seat head that extends above the operating seat. The riveting unit is mounted vertically opposite the positioning seat on the seat head and has a riveting head that can rise and fall and rotate relative to the positioning pin head, and a riveting drive module for driving the riveting head to rise and fall and rotate. This utility model can efficiently complete the assembly of elastic cylinder assemblies.

The invention discloses a gas-liquid separation device for zinc-containing mineral water, and relates to the technical field of gas-liquid separation, the gas-liquid separation device is technically characterized by comprising a base and a degassing tank fixedly mounted on the base, a gas-liquid separation structure is arranged in an inner cavity of the degassing tank, and the gas-liquid separation structure comprises a large gear ring fixedly mounted in the inner cavity of the degassing tank; the inner circular surface of the large gear ring is meshed with a small gear ring, a plurality of telescopic springs are fixedly installed on the inner circular surface of the small gear ring, a wire mesh demister is fixedly installed at the ends, away from the inner circular surface of the small gear ring, of the telescopic springs, an elastic cylinder is fixedly installed at the top of the wire mesh demister, and a four-way pipe is fixedly installed at the top end of the elastic cylinder; through the synergistic effect of the pinion ring, the telescopic spring and the wire mesh demister, vibration and centrifugal force are generated through rotation, calcium and magnesium ions can be stripped to reduce the scale formation probability, water vapor condensation can be accelerated, meanwhile, the gas contact area is greatly increased through the rotation design, the water vapor interception efficiency is improved, and it is ensured that gas-liquid separation is more efficient and stable.

The utility model discloses a carriage chassis connecting structure, and particularly relates to the technical field of carriage chassis, which comprises an end beam, a main beam is mounted on one side of the end beam, a cross beam is mounted on the inner side of the main beam, an elastic connecting piece is mounted in the cross beam and comprises a bolt, a gasket is sleeved on the outer wall of the top end of the bolt, and the elastic connecting piece is connected with the end beam. The bolt is sleeved with an elastic cylinder, and a nut is installed on the outer wall of the bottom end of the bolt in a threaded mode. According to the carriage chassis connecting structure, through the arrangement of the elastic connecting pieces, when the carriage chassis bears the load, the pressure of the cross beams is transmitted to the longitudinal beams at the bottom, and when the cross beams extrude the longitudinal beams, the cross beams extrude the elastic cylinders to deform, so that pressure telescopic spaces are formed in the connecting positions between the cross beams and the longitudinal beams; therefore, deformation of the non-connection positions of the cross beams and the longitudinal beams when bearing pressure for a long time is avoided, the service life of the carriage underframe is prolonged, the use stability of the carriage underframe connection structure is improved, and meanwhile the bearing effect of the carriage underframe is improved.

The utility model relates to the polishing field more specifically and is a glove mould polishing equipment, including elastic cylinder shape polishing cloth, both ends of cylinder shape polishing cloth are fixed with clamping frame, are used for sealing and fixing polishing cloth port, two clamping frames are coaxially arranged and rotate on the support, and one of them is connected with the gas supply system, is used for supplying gas to the polishing cloth. The support includes a table body frame and two support plates symmetrically fixed to the upper end of the table body frame, and the two clamping frames are rotatably arranged on the two support plates. The clamping frame includes a central shaft rotatably arranged on the support plate, and a ring clamp seat is circumferentially sleeved on the central shaft to clamp the port of the polishing cloth. The utility model can reduce the damage to the mould.

The utility model discloses an automatic needle valve burr removing device which comprises a support, a telescopic arm, a fixing block, a plurality of hot air guns, a plurality of elastic collet chucks, a movable track and a mechanical arm control system, one end of the support is in sliding connection with the movable track through a servo motor, one end of the telescopic arm is fixedly connected with the other end of the support, and the other end of the telescopic arm is fixedly connected with the mechanical arm control system. The injection molding control system sends a mold opening completion signal to the mechanical arm control system, the mechanical arm control system sends a moving instruction to the servo motor and the hydraulic system in the telescopic arm after receiving the mold opening completion signal, and a needle valve point on the color injection surface of a product is baked through hot air of the hot air gun; the burrs are melted and firmly attached to the surface of a one-color product, the problem that the one-color material is brought to the surface of a two-color material is avoided when the two-color material is injected, the overall electroplating yield of the product is greatly improved, the frequency of replacing the valve needle sleeve and the valve needle is reduced, and the production cost is reduced to a certain extent.

The application relates to a cloth-bag-replaceable dust collector, which comprises a fixed box, a dust removal box arranged on the inner side of the fixed box, a dust inlet pipe arranged on the left side of the fixed box, a fan fixedly connected to the top of the dust inlet pipe, a connecting pipe fixedly connected to the output end of the fan, a power source fixedly connected to the top of the dust removal box, a hydraulic rod fixedly connected to the output shaft of the power source, an elastic cylinder arranged on the hydraulic rod, a connecting rod arranged on the elastic cylinder, a nut screw-connected to the outer side of the connecting rod, and a connecting plate arranged on the inner side of the dust removal box. The cloth-bag-replaceable dust collector solves the problem that dust removal cannot be carried out in cooperation when dust removal cloth bags are fixedly installed and gas is floating, facilitates the dismounting and mounting of the dust removal cloth bags by using the fixing piece, and realizes the integral dismounting of the connecting plate, the sliding frame, the dust removal cloth bags and the fixing piece by using the elastic cylinder, the connecting rod and the nut.

The invention is suitable for the technical field of reversing valves, and provides a structure-optimized electromagnetic reversing valve which comprises an oil outlet assembly additionally arranged on a reversing valve body, the oil outlet assembly comprises a plurality of unit oil outlet pipes, each unit oil outlet pipe comprises a caliber adjusting pipe and an inner elastic cylinder, the caliber adjusting pipe is arranged on the outer side of the inner elastic cylinder in a sleeving mode, and the caliber adjusting pipe is arranged in the inner elastic cylinder in a sleeving mode. The inner elastic cylinder is connected with the outer elastic cylinder; the caliber adjusting pipe comprises a plurality of caliber adjusting rings; the oil outlet hole diameter of the oil outlet channel of the unit oil outlet pipe is adjusted by adjusting the hole diameters of the local caliber adjusting rings; the electromagnetic reversing valve further adjusts the fluid pressure according to actual needs, the situation that multiple unit oil outlet pipes need to be independently connected with an external pneumatic device, dependence on an external air source is caused, the system size and energy consumption are increased, and an air path prone to faults is avoided is avoided.

The utility model belongs to the technical field of positioning tools, and particularly relates to a tool facilitating installation of an elastic cylindrical pin of a battering ram piston rod. Comprising supports, supporting plates, brackets and positioning plates. The supporting plate is mounted at the top of the support, the bracket is mounted at one end of the supporting plate, the positioning plate is mounted at the other end of the supporting plate, the bracket is used for bearing a cylinder sleeve of a piston rod, the positioning plate is connected with a piston rod large head through a bolt, and a mounting hole is formed in the piston rod large head. And the mounting hole faces upwards and is used for mounting an elastic cylindrical pin. In the practical application, the piston rod is borne by the bracket, and the large end of the piston rod is fixed on the supporting plate through the positioning plate, so that the piston rod is integrally positioned on the supporting plate, and the mounting efficiency of the elastic cylindrical pin is improved.

The invention discloses a tool for machining a cut-off through hole in a thin-wall plate-shaped welding workpiece through a vertical machining center. The tool comprises a clamp body, a positioning pin base, a positioning pin, a cylindrical pin, a double-thread screw, a side pressing plate, a pressing nut, an upper pressing plate, a lower pressing plate, a pair of wedge-shaped positioning blocks and two spring holes. The spring and the elastic cylindrical pin are arranged in each spring hole; and the pair of ball screws is arranged on the reference plane. According to the method, the coaxiality requirement of the cut-off through holes in the thin-wall plate-shaped welding workpiece can be met. The method has the beneficial effects of being simple, reliable, low in cost, low in popularization difficulty, easy and convenient to operate, stable in quality, high in precision and suitable for machining the cut-off through hole in the thin-wall plate-shaped welding workpiece.