84results about How to "Prevent axial rotation" patented technology

Various methods and devices for replacing damaged, injured, diseased, or otherwise unhealthy posterior elements, such as the facet joints, the lamina, the posterior ligaments, and/or other features of a patient's spinal column, are provided. In one exemplary embodiment, a posterior implant is provided and it can be adapted to control movement of two or more adjacent vertebrae. In particular, the implant can be adapted to control extension, flexion, and lateral bending of the adjacent vertebrae. The implant can also be adapted to substantially prevent rotation of the adjacent vertebrae. In another exemplary embodiment, the implant can have an envelope of motion that is within an envelope of motion of a disc, either natural or artificial, that is disposed between the adjacent vertebrae. In other words, the implant can be configured to allow flexion, extension, lateral bending of the vertebrae to within the amount of flexion, extension, and lateral bending allowed by the particular disc. The implant can also be adapted to substantially prevent rotation of the vertebrae relative to one another.

A storage system for inside a Sea-Land shipping container provides at least two hanging brackets, each bracket having a vertical beam with a hook at an upper end portion for releasable engagement with a lashing ring carried on a wall inside the Sea-Land shipping container to depend therefrom adjacent the wall. Supports extend forwardly outwardly from the hanging beams and are reinforced by braces communicating between the support and hanging beam. A squaring foot at a lower end portion of each hanging beam extends perpendicular thereto preventing axial rotation of the hanging beam. A vertical member at end portion of each support, opposite the hanging beam, prevents materials from falling off the support.

The invention relates to a method for clamping a crystal by adopting a heat emission heat sink in a laser diode end-pumped solid-state laser. A packing indium foil of a laser crystal bar, metal heat sinks, a metal framework and jackscrews on the top of the metal framework are adopted in the clamping method, wherein a circulating water current channel is arranged on each metal heat sink; the clamping method is characterized in that the number of the metal heat sinks is no less than 3, the metal heat sinks are used for symmetrically clamping the crystals of the laser, and a clamping surface of each metal heat sink is wedged with the contact surface of the crystal of the laser; the metal framework is polygonal; the number of sides of the polygon is dependent on the number of the metal heat sink; each metal heat sink is fixedly connected with each side of the metal framework by the jackscrew; and the crystals of the laser are clamped by using the jackscrews. The temperature of the crystals of the laser uniformly varies along the surface; and the maximum value of the temperature decreases, which is helpful to the axial symmetry of heating effect of the crystals and the prevention of breakage due to overhigh local temperature of the end surfaces of the crystals.

The invention discloses a tilting-pad sliding bearing which comprises a plurality of broken tiles, a bearing shell and bearing end covers. The bearing shell is arranged to be of a hollow cylinder structure; the broken tiles are annularly and uniformly distributed on an inner surface of the bearing shell around a central axis of the bearing shell; a rotor is arranged in an annular structure formedby the broken tiles; two sides of the bearing shell are connected with the bearing end covers; a plurality of throttling holes are formed in a radial direction of the bearing shell and are formed in positions, corresponding to the centers of the broken tiles, of the bearing shell; and a high-pressure lubricating medium enters gaps between the bearing shell and the broken tiles through the throttling holes so as to form hydrostatic pressure supporting points for supporting the broken tiles. According to the tilting-pad sliding bearing provided by the invention, the hydrostatic pressure supporting points are adopted to replace mechanical supporting points in the prior art, so that the wear of the mechanical supporting points of the broken tiles is eliminated, and the vibration of a bearing-rotor system is improved.

The invention discloses rotary type processing equipment for threaded holes of a bearing inner ring. The rotary type processing equipment comprises a fixed plate, a rotary plate, a first stop device, a second stop device, a drilling device, a tapping device and a drive device, wherein the outer side edge of the fixed plate is provided with an engagement part; the engagement part consists of a plurality of first teeth; the part, positioned at the periphery of the fixed plate, of the upper end surface of the rotary plate is provided with a rotatable workpiece mounting plate; the outer side edge of the workpiece mounting plate is uniformly distributed with a plurality of second teeth adaptive to the first teeth; the first stop device is used for stopping the workpiece mounting plate; the drilling device is used for drilling the inner ring of the workpiece mounting plate; the second stop device is used for stopping the workpiece mounting plate; the tapping device is used for tapping the drilled inner ring; and the drive device is in transmission connection to the rotary plate for riving the rotary plate to rotate around the fixed plate and to rotate towards the tapping device from the drilling device. The rotary type processing equipment can complete twice drilling and twice drilling by once clamping, so that the production efficiency is greatly improved.

The invention provides a novel spiral wheel type miniature pipeline detection robot and a using method. The novel spiral wheel type miniature pipeline detection robot comprises a robot body, and the robot body is of a sectional structure and comprises a front axle drive, a supporting part, a detection part and a rear axle drive; and the front axle drive is hinged to the detection part through a second universal joint coupler, the detection part is fixedly connected with the supporting part, and the supporting part is hinged to the rear axle drive through a first universal joint coupler. The detection robot is simple and reliable in structure and convenient to use, exploration work in a pipeline can further be completed, and problems existing in the pipeline can be detected in time.

The invention discloses a quick locking mechanism of a box type portable life support system and a use method thereof, relating to the technical field of medical devices. The quick locking mechanism includes a life support box, support legs, a universal stretcher, a cable switch, a push button switch, and fast locking jaws; a life support box comprises a handle and a box body; the support leg is composed of an vertical leg and a support beam; the universal stretcher consists of a stretcher steel beam, stretcher cloth and a stretcher support; the life support box is locked to the universal stretcher through the quick locking jaws at the bottom of the support legs, and the flexible cable switch and the push-torque switch are both located at the bottom of the life support box, and the flexible cable pulled by the handle around the three parallel pulley axles drives the three parallel pulley axles to rotate, thereby driving the trapezoidal slide block to control the deployment of the support legs; and the lock state of the support leg is controlled by pressing a torque switch, and the jaws are quickly locked at the bottom of the support leg to realize the connection between the whole box body and the universal stretcher and the automatic lock of the support leg. The quick locking mechanism of a box type portable life support system can realize the quick deployment of the support and the quick fixation of the locking device, so as to save the golden time of the rescue.

The invention discloses an ultralow-capacity atomizer and belongs to the field of atomizers. The ultralow-capacity atomizer comprises a liquid storage tank and an atomizing device. The atomizing device is fixed to the top end of the liquid storage tank. The atomizing device comprises an atomizing tube. An atomizing pump and an atomizing pipe communicating with the atomizing pump are arranged in the atomizing tube. The atomizing pipe extends out of the atomizing tube to be exposed. The end, extending out of the atomizing tube, of the atomizing pipe is provided with an atomizing nozzle. The liquid storage tank communicates with the atomizing pump through a hose. The atomizing pipe is a length-adjustable flexible pipe body. The end, extending out of the atomizing tube, of the atomizing pipe is provided with a control lever. One end of the control lever is fixedly connected with the atomizing nozzle, and the other end of the control lever is the handheld end. The ultralow-capacity atomizerhas the advantage that the ultralow-capacity atomizer can conduct atomizing sterilization and deinsectization on a high place without using a climbing tool.

The invention provides a washing cup frame capable of being arranged without punching. The washing cup frame comprises fixed disks, fixed shaft sleeves, movable shaft sleeves, cantilevers, clamping parts and a center shaft, wherein the fixed shaft sleeves are arranged at the two ends of the center shaft respectively; the fixed disks are arranged at one end of each fixed shaft sleeve; a plurality of movable shaft sleeves are arranged on the longitudinal inner sides of the fixed shaft sleeves; the movable shaft sleeves and the fixed shaft sleeves are connected to the center shaft in a sleeving way; the cantilevers are arranged at the middle positions of the movable shaft sleeves; the other ends of the cantilevers are connected with the clamping parts. By adopting the washing cup frame, the arrangement problem of a washing cup and the punching-free installation problem of the cup frame are solved, and the life quality is people is enhanced; the washing cup frame has the advantages of simple structure, convenience in use, small occupied space, easiness in implementation, low cost, cleanliness, sanitation, practicability, high adaptability and very high popularization value.

Disclosed is a safety wheel hub with a hidden wheel groove, mainly comprising a movable slide ring lock and an adjustment device matching with same. In a locking state, the movable ring lock can cover the hidden wheel groove, a pressure-loss tire will not be drawn into or break away from the wheel groove when blowing out, and forms a rubber pad using the thickness thereof, thereby endowing a wheel with normal functions of transmitting traction force, braking force, steering force, etc. to the ground, and guaranteeing that a vehicle with a tire that blows out will not be out of control. In an unlocking state, the hidden wheel groove is exposed. The wheel hub structure is the same as that of the traditional design, thereby not affecting the normal disassembling and assembling of the tire.

The invention discloses a laser cutting device capable of conducting deburring treatment on automobile exhaust bent pipes. The laser cutting device specifically comprises a bottom plate, the exhaust bent pipes, a clamping table, laser cutters and a grinding mechanism, wherein movable rails are installed at the two sides of the top of the bottom plate correspondingly, movable bases are arranged inthe movable rails correspondingly, and supporting columns are installed at the top ends of the movable bases correspondingly; and a control panel is fixed to supporting column at one side, a top plateis installed at the top end between the supporting columns, and a first electromagnetic sliding rail is arranged at one end of the interior of the top plate. According to the laser cutting device capable of conducting deburring treatment on the automobile exhaust bent pipes, a left cutting base, a right cutting base and the clamping table are arranged, and the left cutting base and the right cutting base are each provided with a limiting groove matched with the bent ends of the two sides of the exhaust bent pipes in shape, so that the placement angle of the exhaust bent pipes can be limited,axial rotation of the exhaust bent pipes during cutting is avoided, the cutting precision of the inclined sections of the two ends of the exhaust bent pipes is improved, and the cutting effect of thelaser cutter is improved.

The invention discloses a split type composite material core mold for winding a solid rocket engine shell, and overcomes the defects that an existing core mold is too large in dead weight and high in assembly difficulty, and the molded surface precision of the formed shell is poor. The composite material is adopted as the main part of the overall structure of the large split type core mold, the split mold bodies of the large split type core mold are manufactured in the mode that the hot press forming technology and machining are combined, the weight of the large split type core mold is reduced, and the manufacturing efficiency and profile precision of the large solid rocket engine shell are improved.

The invention relates to the technical field of machining, in particular to high-precision bearing production equipment of a large industrial robot. The high-precision bearing production equipment comprises a machining box and two groups of top covers, wherein a mounting seat is arranged in the machining box, a fixing column is arranged at the upper end of the mounting seat, and a supporting plate is arranged below the mounting seat; a linkage mechanism is arranged in the front end wall of the machining box, and the mounting seat is driven by the linkage mechanism to linearly move up and down; the two groups of top covers are driven by the linkage mechanism and horizontally move in opposite directions at the upper end of the machining box, and drilling mechanisms extending into the machining box are arranged on the two groups of top covers; a bearing is arranged on the outer side of the fixing column in a sleeving mode; and a locking mechanism used for clamping a bearing is arranged in the fixing column. The bearing can be well clamped, the working efficiency is improved, and the drilling quality is guaranteed.

The invention discloses a novel clamp which comprises a base and a lifting clamping assembly arranged on the base. The novel clamp is characterized in that the clamping assembly comprises a lifting hollow clamping sleeve with a first through hole and a swelling rod capable of being inserted into the first through hole of the clamping sleeve, at least part, including the upper end portion of the clamping sleeve, of the clamping sleeve is in a fork shape, the upper end portion of the clamping sleeve is provided with a protruding part protruding towards the two sides, the lower surface of the protruding part is a plane perpendicular to the clamping sleeve, and the swelling rod comprises a rod-shaped swelling rod body in clearance fit with the first through hole and an elastic protruding claw protruding towards the positions above the two sides. By means of the novel clamp, a hole of a workpiece penetrates through the clamping sleeve, the clamping sleeve is supported by the swelling rod, the protruding part of the swelling rod and the upper surface of the base axially press the workpiece at the time, static friction force is accordingly generated, the swelling rod is prevented from rotating in the axial direction, the novel clamp in the mode is simple in structure, and as the clamping force is acted on the end face, the workpiece cannot be damaged by clamping.

The present invention relates to a fuse for protecting two-wheeled and three-wheeled electric vehicles. The fuse comprises a fuse body and a protective seat sleeve, a protective seat is provided witha fixed seat and has a waterproof function, and the fuse body is provided with a wire connecting hole. An insulator or a mounting base does not need to be additionally arranged on a circuit system, the fuse can be connected and installed on a line directly, and positioning columns and positioning grooves are arranged between the front and rear protective seat sleeves and in an inner cavity of theprotective seat sleeve, so that the axial dislocation between the front and rear protective seat sleeves and the axial rotation of the fuse body in the protective seat can be prevented. The fuse is more stable to combine, is novel in design, compact in structure, good in sealing performance and stability and reliable in circuit connection, is resistant to impact and vibration, and is a necessary safety protection device for the two-wheeled and three-wheeled electric vehicles. Meanwhile the fuse can be applied to the circuit safety protection systems of the small and low-speed electric vehicles, such as four-wheeled electric vehicles (elderly scooters), garden landscape vehicles, etc.

The invention discloses a small hole well wall core sampler. The small hole well wall core sampler is characterized by comprising a rotary short section, a circuit control short section, a coring assembly and a guide and orientation assembly, wherein one end of the circuit control short section is connected with a bridle through the rotary short section; the other end of the circuit control short section is connected with the coring assembly; the other end of the coring assembly is connected with the guide and orientation assembly; the guide and orientation assembly comprises a guide section which upwards resets and moves in a reciprocating mode and an orientation section for preventing the guide section from moving left and right and the core sampler from rotating in the axial direction; one end of the orientation section is connected with the coring assembly; the other end of the orientation section is connected with the guide section. The small hole well wall core sampler has the inner orientation and guide functions, ensures that the launching direction of a core barrel faces upwards all the time, can effectively reduce friction resistance generated by irregular well walls, is guided to operate along the track of a shaft, can effectively reduce shake generated in the operation process of the core sampler and the lunching process of the core barrel, can prolong the service life of equipment, and ensures the harvesting rate.

The invention relates to a pneumatic feeding system of a copper belt machine. The pneumatic feeding system of the copper belt machine comprises a feeding shaft and a fixing support thereof, wherein aguiding pipe and a fixing support thereof are arranged on the front lower part of the feeding shaft; an air cylinder and a fixing support thereof are arranged on the inner side of the guiding pipe; anair cylinder output shaft is connected with an air cylinder head; a spring supporting plate and a feeding support are fixed to the outer side of the air cylinder head side by side; a feeding plate ishinged onto the feeding support; the spring supporting plate and the feeding plate are connected through a spring; a damping base is arranged in front of the air cylinder head; a damping plate is hinged onto the damping base; wire slots are formed in the lower parts of the damping base and the feeding support; a copper belt sequentially passes through a wire shaft, the guiding pipe, the feeding wire slot and the damping wire slot; the bottom parts of the feeding plate and the damping plates are arc-shaped; the copper belt is located between the feeding wire slot and the feeding plate as wellas between the damping wire slot and the damping plate; a tension spring is connected between the right upper corner of the damping plate and a copper belt machine shell. The feeding precision of an air cylinder is ensured, the simplicity in adjustment is realized, the synchronism is good, the air cylinder is arranged close to a work mold for feeding so as to be good in rigidity, the energy of a host is not consumed, and a popularization value is high.

The invention belongs to the technical field of medical drainage devices, and particularly relates to a breast cancer postoperative drainage device which comprises a negative pressure bin and a partition plate arranged in the negative pressure bin. The negative pressure bin is divided into an equipment chamber and a negative pressure chamber by the partition plate; a piston is arranged in the negative pressure chamber, and the negative pressure chamber is divided into a front chamber and a rear chamber through the piston; the front chamber is communicated with a liquid accumulation chamber through a pipeline, and the liquid accumulation chamber is communicated with a drainage tube; a piston rod is connected to the piston, the piston rod penetrates through the partition plate through the rear cavity and extends into the equipment cavity, and a driving device capable of driving the piston rod to move and further driving the piston to move back and forth in the negative pressure cavity is arranged in the equipment cavity. The driving device is arranged to drive the piston to move towards one end close to the equipment cavity, so that negative pressure formed by the hydrops cavity acts on an operation wound surface connected with the drainage tube, and negative pressure drainage force is achieved; and the adjustment of the negative pressure can be realized by adjusting the output power of the driving device.

The invention discloses a clamping fixture for outer cylinder parts. The clamping fixture comprises a flexible clamping system and a transfer fixture, wherein the flexible clamping system is connectedwith a base plate; the left end of a base shaft penetrates through the base plate, and is connected with the flexible clamping system through a zero positioning pull nail; a tensioning ring sleeves the outer side of the right end of the base shaft through a thread; a conical pin glidingly sleeves the right end; the tensioning ring, the base shaft and the conical pin are connected through positioning pins; a slotting bushing sleeves the outer side of the right end of the conical pin; an outer conical surface is arranged on the conical pin; an inner hole of the slotting bushing is correspondingly set as a conical hole; the right end surface of the base shaft is a positioning surface; the positioning surface is perpendicular to the axis of the base shaft; and the tail end surfaces of the parts are contacted with the positioning surface of the base shaft for positioning. The clamping fixture needs no additional process boss, uses self characteristics of the parts for realizing positioningand clamping, realizes complete positioning, and solves the problems of axial rotation and movement in a traditional clamping mode.

The invention relates to an adjustable looped steel plate with a tightened entrainment. The steel plate comprises an upper steel plate, a loop and an entrainment type tightening mechanism, wherein theentrainment type tightening mechanism is arranged on the upper steel plate, two ends of the loop are respectively connected with the entrainment type tightening mechanism after passing through the upper steel plate, and the loop adjusts the working length through the entrainment type tightening mechanism. The invention has the advantages that: An upper steel plate is arrange above that bone to berestored, An entrainment-type tighten mechanism is arranged on that side of the upper steel plate away from the bone to be restore, and the two ends of the loop are respectively connected with the clamping mechanism after passing through the bone to be restored and the upper steel plate, then the length of the loop in the bone to be restored is adjusted by the clamping tightening mechanism, As that length increase, the clamping force of the bone to be restore can be reduced at this time, and when the length decreases, the clamping force of the bone to be restore can be increased at this time,so as to facilitate finding a suitable force for restoring the bone to be restored and shortening the restoration time.