40results about How to "To achieve the effect of self-locking" patented technology

The invention relates to a pin roller bearing nut and screw rod pair. The pin roller bearing nut and screw rod pair comprises a screw rod and a nut, wherein the screw rod is externally provided with an outer thread; the pin roller bearing nut and screw rod pair further comprises a pin roller; the pin roller comprises a pin roller body; a roller head part of the pin roller body is in a cone frustum structure; a roller main body of the pin roller body is in a cylindrical structure; the nut is provided with pin roller holes; the roller main body is located in the pin roller holes to form clearance fit; the roller head part is located in a tooth groove of the screw rod to form the clearance fit; the diameter of each pin roller hole is a half of a screw pitch of the screw rod and the pin roller hole is arranged spirally; at least two circles of the pin roller holes are arranged; the pin roller holes are divided into pin roller positioning holes and pin roller adjusting holes; the pin roller positioning holes and the pin roller adjusting holes are arranged on a spiral track at intervals; the centers of the pin roller positioning holes are located on the central line of the spiral track; the centers of the pin roller adjusting holes are upwards or downwards deviated for the distance of one tolerance clearance relative to the axial direction of the central line of the spiral track. The pin roller bearing nut and screw rod pair is high in positioning precision, is great in bearing load, is safe and reliable in performance, is reasonable in structure, is convenient to mount and maintain and is wide in applicable range.

The invention relates to a self-locking universal-adjustable fixing device for a sewage pipeline. The self-locking universal-adjustable fixing device comprises a lower fixing seat, the top of the lower fixing seat is movably connected with a first movable clamping plate, the inner top wall of the lower fixing seat is fixedly connected with a universal ball connected with the bottom of the first movable clamping plate in a rolling mode, first magnetic blocks are correspondingly and fixedly connected to the two sides of the lower fixing seat, the top of the lower fixing seat is fixedly connectedwith an inserting block, and the front surface of the inserting block is fixedly connected with a spring piece. According to the self-locking universal-adjustable fixing device for the sewage pipeline, through matching use among the universal ball, the first movable clamping plate and a second movable clamping plate, when soil beside the pipeline sinks, the positions of the fixing device and thepipeline are both deflected, the first clamping plate and the second clamping plate are driven to rotate by the pipeline, the included angel range between the pipeline and the fixing device is 10-15 degree, thus the universal-adjustable effect is achieved, the pipeline is advantageously protected, and the using range of the pipeline is expanded.

The invention belongs to the technical field of industrial fastening pieces, and in particular, relates to a self-locking bolt. The self-locking bolt comprises a bolt body and a gasket; the bolt bodycomprises a bolt head and a screw rod connected with each other; the gasket sleeves the screw rod; multiple first inclined teeth are arranged at the end, contacted with the gasket, of the bolt head; second inclined teeth matched with the first inclined teeth are arranged at the end, contacted with the bolt head, of the gasket; a loose thrust surface is arranged on the first inclined teeth; an included angle between the loose thrust surface and the horizontal plane is larger than a lead angle of the screw rod; and the friction coefficient between the end, far from the bolt head, of the gasket and the surfaces of workpieces is larger than the friction coefficient between the contact surfaces of the first inclined teeth and the second inclined teeth. The self-locking bolt can preferably realize self-locking without needing cooperation, and is excellent in self-locking effect.

The invention relates to a fungus bag lantern ring capping machine. The fungus bag lantern ring capping machine comprises a feeding device, a fungus bag sealing disc, a bag opening arranging device, supplying devices and a discharging device which are arranged on a workbench; one supplying device, the feeding device, the bag opening arranging device, the other supplying device and the dischargingdevice are sequentially fixed to the workbench in the rotating direction of the fungus bag sealing disc; a power shaft device is arranged on the workbench; the power shaft device is in transmission connection with the fungus bag sealing disc and drives the fungus bag sealing disc to rotate around the rotation center of the fungus bag sealing disc; the fungus bag sealing disc comprises a rack and aplurality of lantern ring capping assemblies; and each lantern ring capping assembly sequentially comprises a bag opening tightening claw, a capping claw, a lantern ring claw and a bag holding claw from top to bottom, wherein the bag opening tightening claw, the capping claw, the lantern ring claw and the bag holding claw are arranged on the rack. The fungus bag lantern ring capping machine can adapt to the production frequency of high-speed operation, can carry out full-automatic ring sleeving, cap covering and necking, and can achieve the purpose of full-automatic cap covering.

The invention relates to the technical field of turbidimetry instruments, and discloses a sample injection mechanism of a full-automatic chemical turbidimetry instrument, the sample injection mechanism comprises a box body and a sample bottle, a clamping unit for clamping the sample bottle is arranged in the box body, the clamping unit comprises a plurality of clamping mechanisms I and a reset mechanism; the sample injection mechanism of the full-automatic chemical turbidimetry instrument is provided with the reset mechanism, the clamping mechanisms, a rubber pad and a button, the reset mechanism and the clamping mechanisms I can be used in cooperation, and when a sample bottle is not taken, the clamping mechanisms I can clamp the sample bottle through a clamping plate; the rubber pad can increase the friction force with the surface of the bottle body of the sample bottle, so that the sample bottle can be clamped more tightly and is not easy to be taken out violently, the surface of the bottle body cannot be scratched when the sample bottle is clamped by the soft rubber pad, and the attractiveness cannot be influenced; the button is used for realizing a one-key all-clamping function; and the four gears can return to the initial state by pressing the button, so that the operation is quick and convenient.

The invention relates to crushing equipment, in particular to micro-particle solid crushing equipment capable of reducing material loss. According to the micro-particle solid crushing equipment, feed can be crushed in a diversified mode, the crushing efficiency is improved, the crushing effect is improved, meanwhile, the feed can be shaken down and scraped down from the equipment, and the material loss is reduced. The micro-particle solid crushing equipment capable of reducing the material loss comprises a first supporting frame, a mounting frame, a crushing barrel and the like; first supporting frames are connected to the left side and the right side of the smashing barrel, and a mounting frame is connected to the upper side of the smashing barrel. A crushing cone is driven by a first motor to rotate, the crushing cone moves up and down through cooperation of a groove and a protruding block, and therefore diversified crushing operation is conducted, the crushing efficiency is improved, the crushing effect is improved, meanwhile, feed attached to the crushing cone is shaken down, feed attached to a spiral guide groove is scraped down, and the feed crushing efficiency is improved. The material loss is reduced.

The invention relates to a femoral intramedullary nail and a femurutilizing the femoral intramedullary nail. The femur comprises a femoral head and the femoral intramedullary nail. The femoral intramedullary nail comprises a main nail, a core nail and anti-rotary blades. The main nail comprises a nail head and a nail rod. The nail head and the nail rod internally comprise a communicating hollow cavity. A free end of the nail rod comprises at least two blade guide grooves. The core rod is accommodated into the hollow cavity. Each anti-rotary blade comprises a connecting rod, at least two bearings and at least two blades. Free ends of the at least two blades are respectively accommodated into the at least two blade guide grooves. The anti-rotary blades are inserted into the femoral head. Given that the anti-rotary blades are inserted into the femoral head, there is no need to have a collimation device in vitro. In this sense, installation difficulty is lowered and installation time is shortened while fixation failure of the traditional locking mode is avoided. Safety and effectiveness are improved.

The invention relates to the technical field of injection assistance, and discloses pediatric medical injection equipment. The pediatric medical injection equipment comprises a base, a sponge mat adheres to the top of the base, a backrest is welded to the rear part of the base, an injection assisting mechanism is arranged in the backrest, a fixing seat is arranged on the surface of the injection assisting mechanism, a backrest plate is slidably connected with the front part of the backrest, sound openings are formed in the two sides of the backrest, and arm placing seats are fixedly connected to the two sides of the base through bolts. By means of the injection assisting mechanism, the effects of roughly fixing the body of a child and diverting the attention of the child are achieved, medical workers are assisted in injection in an entertainment mode, on the one hand, the effect of preventing the child from moving disorderly to affect injection is achieved, on the other hand, the effect of improving the injection interest of the child is achieved, the fear of the child caused by a needle head is reduced, furthermore, the medical staff can conveniently inject, and the injection effect is improved.

The invention provides a hard disk bracket self-locking structure and self-locking method, and relates to the field of hard disk bracket self-locking. A baffle sheet is mounted in a button mounting groove; the baffle sheet comprises a pick-and-place sheet and clamping pieces; a baffle sheet mounting groove is formed in the mounting end of the baffle sheet; the baffle sheet mounting groove is matched with the button mounting groove in structure; the clamping pieces are arranged on the two sides of the baffle sheet mounting groove; the clamping pieces are matched with a button in structure; eachclamping piece comprises an elastic connecting sheet and a clamping bulge; the clamping bulges are connected with the pick-and-place sheet through the elastic connecting sheets; and the clamping bulges limit the button to move inwards. By adding the limiting baffle sheet to the button, when the button is pressed, the downward moving space of the button is limited, so that a handle is not ejected,and the self-locking effect is achieved; and if a bracket needs to be opened, the small baffle sheet only needs to be pulled out, so that the handle can be normally ejected for pulling out a hard disk.

The invention discloses a lock valve with high universality and practicability, and relates to the technical field of valves. The lock valve comprises a conveying pipe, wherein limiting grooves whichare uniformly distributed are formed in the inner wall of the conveying pipe, friction strips are fixedly connected to the inner walls of the limiting grooves, a ball valve is movably connected to themiddle of the conveying pipe, the inner wall of the ball valve is fixedly connected with first springs which are uniformly distributed, the inner sides of the first springs are fixedly connected withmovable blocks which are movably connected with the inner wall of the ball valve, and the outer sides of the movable blocks are fixedly connected with second springs. According to the lock valve withhigh universality and practicability, limiting blocks and the limiting grooves are matched to use, when the ball valve is used, a sliding block can move to the bottom under the action of a third spring, the movable blocks are extruded outwards, the limiting blocks rotate outwards and are clamped with the limiting grooves, the rotation of the ball valve is limited unidirectionally, and the ball valve can only rotate in one direction at the time, so that the self-locking effect is achieved, the rotation direction of the valve is limited, the use safety of the valve is guaranteed, and the practicability and universality are high.

The invention discloses a special composite geotechnical material for high-grade subgrades and a preparation method thereof, comprising a lower waterproof layer, a drainage board and an upper water-permeable layer, the lower waterproof layer and the upper water-permeable layer are connected through the drainage board, and the hydrophilic surface of the lower waterproof layer faces Down, the hydrophobic side faces up and contacts the lower drainage panel of the drainage board, and the hydrophobic side of the upper permeable layer contacts the upper drainage panel of the drainage board; Divert the water so that it enters the drainage board and discharges it through the drainage groove to reduce the pressure of groundwater on the subgrade and the damage of groundwater frost heave to the subgrade, so as to ensure the effect of road construction and use; at the same time, when the upper drainage panel and the lower drainage panel are under pressure When the support column is deformed, the arc-shaped side wall of the support column fits with the outer wall of the drainage protrusion and squeezes each other to realize self-locking, so that the volume of the drainage tank does not change after self-locking, ensuring the drainage effect. It has the characteristics of novel structure and strong practicability.

The utility discloses a conical shaft coupler. The conical shaft coupler comprises a connection pipe and shaft heads located at the two ends of the connection pipe; the two ends of the connection pipeare provided with shaft sleeves used for installing the shaft heads and provided with inner cone holes; positioning sleeves used for being installed between the shaft sleeves and the shaft heads arefurther included; the connection ends of the shaft heads are arranged into frustum structures with the diameter gradually increased from the root portion of the shaft heads to the outward portions; each positioning sleeve is composed of two structures opened in opposite directions; each positioning sleeve is provided with an inner hole matched with the outer surface of the frustum of the corresponding shaft head, and an outer conical face matched with the inner cone hole of the corresponding shaft sleeve; and the connection ends of the shaft heads are installed on the shaft sleeves after beingsleeved with the positioning sleeves. After the above structure is adopted, installing is convenient, after installing, the connection ends of the shaft heads are made to be limited in the positioning sleeves, the problem that the shaft heads disengage from the connection pipe is completely and effectively prevented, locking becomes more reliable along with disengaging, and the self-locking effect is achieved.

The invention discloses a zero-gravity small crane which comprises a support. The support comprises a large cantilever and a small cantilever, and both the large cantilever and the small cantilever can rotate. The two groups of rotary cantilevers are adopted, the space is utilized to the maximum extent, namely the length of the whole cantilevers can be adjusted to adapt to hoisting at different distances. When not in use, the zero-gravity small crane can be folded and is convenient to store.

The invention relates to an adaptive positioning structure for a rail space attitude of a rail measuring instrument. In the process of measuring the gauge of the track gauge, there is no practical calibration device to check the verticality of the rail direction of the beam. The present invention includes a guide chute with the notch facing down, and a sliding shaft is arranged inside; one end of the sliding shaft is fixed on the wheel support, the bottom surface is provided with a fixed plate for the movable end of the gas spring, and two rails are connected to both sides of the rail and are parallel to and perpendicular to the rail. The other end of the gas spring is fixed on the fixed end fixed plate of the gas spring, and the fixed end fixed plate of the gas spring is hinged with a transmission flap and a transmission plate in turn. One end is provided with a transmission handle. The invention has a reasonable structure, pushes the two ends of the beam to the track through the gas spring, makes the measuring wheel close to the inner side of the track, ensures that the beam of the track measuring instrument is always perpendicular to the track, and improves the reliability and accuracy of the track measuring instrument in measuring the gauge. accuracy.

The invention relates to the technical field of spring processing, and discloses a mattress spring stress-relief annealing device, which includes a chassis, the four corners of the lower surface of the chassis are respectively connected to the tops of four groups of roller frames in rotation, and the bottoms of the roller frames rotate Rollers are connected, a motor frame is fixedly connected to the left bottom of the chassis, and the rear side of the motor frame is fixedly connected to the front side of the drive motor. The mattress spring stress relief annealing equipment, through the cooperating setting of the locking block, the locking groove and the inserting block, the chassis and the machine cover can be fixed to each other, and the coordinating setting of the high temperature resistant sealing strip and the sealing groove can make the chassis and the machine cover It achieves the effect of sealing and effectively prevents the heat in the chassis from overflowing. The locking block and the fixing plate achieve the effect of self-locking through the cooperation of the insert block and the second chute, and the heat preservation effect in the chassis is achieved through the setting of the insulation layer. , through the setting of the heating layer, the temperature in the chassis can be raised.

The invention relates to a self-locking fixed part for a surgical implant. The self-locking fixed part comprises a steel plate and a self-locking screw, wherein the self-locking screw consists of a screw rod and a screw cap, a ring-shaped groove with the end surface being similar to the V shape is arranged on the screw cap longitudinally, the screw cap is divided into an outer ring and an inner ring by the ring-shaped groove, more than two openings are arranged on the outer ring of the screw cap longitudinally, and the part with the maximum outer diameter of the screw cap is lower than the upper end surface of the screw cap; a screw hole matched with the shape of the screw cap is arranged on the steel plate, the inner diameter of an inlet of the screw hole is less than the maximum outer diameter of the of the screw cap, the maximum inner diameter of the screw hole is larger than the inner diameter of the inlet of the screw hole and less than the maximum outer diameter of the screw cap, and the inlet of the screw hole and an arc of the part with the maximum inner diameter are connected to form a laminated arc; and the self-locking screw penetrates through the screw hole arranged on the steel plate and is implanted into the steel plate for compressing and fixing the steel plate, and therefore, the part with the maximum outer diameter of the outer ring of the screw cap pushes against the laminated arc of the screw hole in a clamping way, so as to realize self locking. The self-locking fixed part has the advantages that the structure is simple, the cost is low, the processing and the production are easy, the implantation is convenient, the operation is fast, the incisura is small, and the surgery time is saved.

The invention relates to a self-locking fixed part for a surgical implant. The self-locking fixed part comprises a steel plate and a self-locking screw, wherein the self-locking screw consists of a screw rod and a screw cap, a ring-shaped groove with the end surface being similar to the V shape is arranged on the screw cap longitudinally, the screw cap is divided into an outer ring and an inner ring by the ring-shaped groove, more than two openings are arranged on the outer ring of the screw cap longitudinally, and the part with the maximum outer diameter of the screw cap is lower than the upper end surface of the screw cap; a screw hole matched with the shape of the screw cap is arranged on the steel plate, the inner diameter of an inlet of the screw hole is less than the maximum outer diameter of the of the screw cap, the maximum inner diameter of the screw hole is larger than the inner diameter of the inlet of the screw hole and less than the maximum outer diameter of the screw cap, and the inlet of the screw hole and an arc of the part with the maximum inner diameter are connected to form a laminated arc; and the self-locking screw penetrates through the screw hole arranged on the steel plate and is implanted into the steel plate for compressing and fixing the steel plate, and therefore, the part with the maximum outer diameter of the outer ring of the screw cap pushes against the laminated arc of the screw hole in a clamping way, so as to realize self locking. The self-locking fixed part has the advantages that the structure is simple, the cost is low, the processing and the production are easy, the implantation is convenient, the operation is fast, the incisura is small, and the surgery time is saved.

The invention relates to a pin roller bearing nut and screw rod pair. The pin roller bearing nut and screw rod pair comprises a screw rod and a nut, wherein the screw rod is externally provided with an outer thread; the pin roller bearing nut and screw rod pair further comprises a pin roller; the pin roller comprises a pin roller body; a roller head part of the pin roller body is in a cone frustum structure; a roller main body of the pin roller body is in a cylindrical structure; the nut is provided with pin roller holes; the roller main body is located in the pin roller holes to form clearance fit; the roller head part is located in a tooth groove of the screw rod to form the clearance fit; the diameter of each pin roller hole is a half of a screw pitch of the screw rod and the pin roller hole is arranged spirally; at least two circles of the pin roller holes are arranged; the pin roller holes are divided into pin roller positioning holes and pin roller adjusting holes; the pin roller positioning holes and the pin roller adjusting holes are arranged on a spiral track at intervals; the centers of the pin roller positioning holes are located on the central line of the spiral track; the centers of the pin roller adjusting holes are upwards or downwards deviated for the distance of one tolerance clearance relative to the axial direction of the central line of the spiral track. The pin roller bearing nut and screw rod pair is high in positioning precision, is great in bearing load, is safe and reliable in performance, is reasonable in structure, is convenient to mount and maintain and is wide in applicable range.

A lockable valve with high versatility and high practicability relates to the technical field of valves, including a delivery pipe, the inner wall of the delivery pipe is provided with evenly distributed limiting grooves, the inner wall of the limiting groove is fixedly connected with friction strips, and the delivery pipe The middle part of the ball valve is movably connected with a ball valve, the inner wall of the ball valve is fixedly connected with evenly distributed spring one, the inner side of spring one is fixedly connected with a movable block movably connected with the inner wall of the ball valve, and the outer side of the movable block is fixedly connected with spring two. The valve with high versatility and high practicability is used through the cooperation of the limit block and the limit groove. When using the ball valve, the slider will move to the bottom under the action of the spring three, and the movable block will be extruded outward. , so that the limit block rotates to the outside and engages with the limit groove, one-way restricts the rotation of the ball valve. At this time, the ball valve can only rotate in one direction, so as to achieve the effect of self-locking, limit the rotation direction of the valve, and ensure the safety of the valve. It is safe to use, and has high practicability and versatility.

The invention discloses an assembly type composite sensor, and relates to the technical field of sensors. The assembly type composite sensor comprises a fixed seat, a vibration sensor, a temperature sensor and a skeleton plate, and further comprises two fixed columns and screws which are welded together, and the upper surface and the lower surface of the skeleton plate are provided with a first groove and a second groove respectively; the upper surface of the fixing base is provided with an embedding groove used for embedding the framework plate and a third groove, the groove wall of the third groove is provided with an internal thread groove used for screwing in of the screw, and the groove of the first groove is internally provided with a driving part used for driving the screw to be screwed in the internal thread groove and self-locking, and an abutting part used for abutting against the surface of the fixing column, and the abutting part is in transmission connection with the driving part. According to the invention, the screw is self-locked after being screwed into the internal thread groove, so that the reverse rotation process of the screw is limited, and the effect that the installation of the sensor is firmer and more reliable is achieved.

The invention discloses a self-locking bolt fastener which comprises a screw rod. When the fastener is used, double effects of looseness prevention and convenient disassembly can be achieved at the same time. The screw rod is locked and is prevented from being loosened through structural cooperation among a locking cover, a fastening block and a base, and when the screw rod passes through a torsional spring, the torsion spring is extruded to generate expansion deformation, and thus, the screw rod can smoothly pass through the torsion spring conveniently. When the screw rod tends to rotate in the reverse direction, namely to be screwed out, the elastic force of the torsion spring enables the torsion spring to contract, the screw rod can be prevented from further rotating in the reverse direction, and therefore the self-locking effect is achieved. When the bolt fastener is detached, it is only needed to rotate the locking cover in the reverse direction, so that a flat and straight face of an internal thread is in extrusion contact with a short ejector rod, deformation potential energy of the spring is released, sliding locking on the fastening block is relieved, then a starting end of the torsional spring is extruded inwards, the torsional spring is expanded to relieve limitation on the screw rod, the screw rod can be screwed out rapidly, so that it is convenient to disassemble and assemble the fastener.

The invention discloses an electric hoist with symmetrical mechanisms. The electric hoist comprises motor mechanisms, a fixing mechanism and a hoisting mechanism, the hoisting mechanism is arranged inthe fixing mechanism and penetrates through the fixing mechanism to be assembled with the motor mechanisms, the motor mechanisms are arranged on the two sides of the fixing mechanism and are symmetrical about the fixing mechanism, and an eccentric mechanism is also arranged in each motor mechanism. According to the electric hoist, double stators and double rotors which are of symmetrical structures are adopted, so that the weight of the whole electric hoist can be evenly distributed, and the gravity center can be easily kept at the chain wheel position; the stators and the rotors are of super-flat structures, the size is small, and super-high torque density output can be generated; and the eccentric mechanisms are arranged, when motors work, although eccentricity exists, the eccentric distance is almost kept unchanged, the torque can be smoothly transmitted to a chain wheel, when the motors stop working, force is reversely transmitted back from the chain wheel, the eccentric distancebetween the center of a planet carrier and the center of a planet gear can be increased at the moment, so that engaged planets are locked to achieve the self-locking effect, and therefore a redundantstop structure is removed, so that the electric hoist is more simplified.

The utility model discloses a self-locking fixing device for a train track, which is convenient to confirm whether loosening occurs. The device comprises a bolt, self-locking grooves, first barbs, a mounting nut, a spring, a push rod, a fixing nut, a clamping block, second barbs, a lower ejection block, an upper ejection block, a fixing nail, an alarm ring, a movable block I, an annular pipe and amovable block II, the self-locking grooves are formed in the periphery of the bolt, the inner walls of each self-locking grooves are fixedly connected with the first barbs, the outer side of the boltis in threaded connection with the fixing nut, and the inner bottom wall of the fixing nut is fixedly connected with the second barbs. The self-locking fixing device for the train track is convenientto confirm whether the fixing device is loosened or not; through cooperative use of the push rod and the clamping block, after the fixing nut is screwed down, the push rod is pushed, the clamping block stretches out of the fixing nut and is connected with the first barbs in a clamped mode, the fixing nut and the bolt are relatively fixed, and therefore the self-locking effect is achieved, the fixing device is effectively prevented from loosening due to vibration, and the safety of the rail is improved.

A self-locking universally adjustable fixing device for sewage pipes, comprising a lower fixing seat, the top of the lower fixing seat is movably connected with a movable chuck 1, and the inner top wall of the lower fixing seat is fixedly connected with a movable chuck 1 The bottom of the universal ball is rollingly connected, the two sides of the lower fixed seat are fixedly connected with a magnetic block one, the top of the lower fixed seat is fixedly connected with an insert block, and the front of the insert block is fixedly connected with a shrapnel. The self-locking universal adjustable sewage pipe fixing device is used in conjunction with the universal ball and the movable chuck 1 and the movable chuck 2. When the soil next to the pipe sinks, the positions of the fixing device and the pipe will shift , the pipeline will drive the movable chuck 1 and the movable chuck 2 to rotate, and the angle range between the pipeline and the fixing device is 10-15 degrees, so as to achieve the effect of universal adjustment, which is beneficial to protect the pipeline and expand the pipeline range of use.