41results about How to "Fast self-locking" patented technology

The invention discloses a master-slave minimally invasive vascular interventional surgery remote operation system and belongs to the technical field of medical equipment. The system comprises a doctor control platform, a master-end control computer, visual feedback detection equipment, a wire and tube guiding manipulator, a slave-end control computer and a slave-end pose adjusting platform. The doctor control platform conducts motion of simulating the medical behavior of guiding a tube and a wire according to operation of a doctor and transmits motion information corresponding to the motion to the master-end control computer; the master-end control computer transmits the received motion information as a motion control command to the slave-end control computer; the slave-end control computer transmits the received motion control command to the wire and tube guiding manipulator; the wire and tube guiding manipulator moves according to the received motion control command and then conducts the medical behavior on a patient. Through the system, intervention can be completed according to operation information of the doctor, haptical information can be fed back to the doctor in real time, and therefore safety and operability of interventional surgery are improved.

The invention discloses a pose mechanical-adjusting movable platform, and belongs to the technical field of medical facility. The pose mechanical-adjusting movable platform comprises a six-connecting-rod manipulator, a turntable, a lifting mechanism and a base; the lifting mechanism is mounted on the base, and motion and self-locking, in the vertical direction, of peripheral equipment mounted on the movable platform are realized; the six-connecting-rod manipulator is mounted on the lifting mechanism, and translation in a horizontal plane and adjustment and locking for rotation in the vertical direction, of the peripheral equipment, are realized; the turntable is mounted on the six-connecting-rod manipulator, and adjustment and self-locking for the rotation, of the peripheral equipment, around the central line of the turntable are realized; the base is used for supporting an adjusting mechanism comprising the six-connecting-rod manipulator, the turntable and the lifting mechanism, and realizing translation and turning of the adjusting mechanism on the ground. Through the mechanical mechanism, the platform realizes supporting and adjusting functions, improves the precision, stability and safety of an operation, and conveniently realizes fixed connection and separation of a slave terminal system and a hospital bed.

The invention relates to the field of electric bicycles, in particular to a multi-functional anti-theft alarm battery and an electric bicycle using the battery. Each battery unit has a unique identification code; the battery unit, a vibration sensor module A, a voice speaker module, a charge and discharge control module, a power switch and a bus instrument system control module are all connected to a state information acquisition and processing module; and positive electrodes of serially connected battery units are connected to a positive electrode of a power interface to provide power externally through the charge and discharge control module and the power switch in sequence. According to the electric bicycle provided by the invention, the position variation of the anti-theft battery can be detected; a warning can also be sent out continuously even though the power is cut off in case of theft; each battery unit has the unique identification code, can be self-locked to stop power supply of the battery when the identification code is inconsistent, and cannot be used on other electric vehicles even though the battery is stolen successfully; the problem of easiness in stealing of the battery is solved; a wiring harness is simplified; and the production efficiency is increased.

The invention relates to a nonlinear curve eccentric cam type quick clamping device. When a handle of a nonlinear curve eccentric cam is closed, the eccentric cam reaches a highest point to realize a clamping function; the curve surface of the cam is a nonlinear curve surface, and a self-locking and anti-falling function is realized; when a spanner is pulled, the eccentric cam reaches a lowest point, and under the action of a tension spring, a fixed slip groove and a movable slip groove are loosened. In the invention, the clamping force is regulated through regulating the connecting threads of a pull rod sleeve and a pull rod shaft, thus the eccentric cam can be used for realizing the functions of quickly assembling and disassembling, quickly clamping, self-locking and preventing loosening. The eccentric cam has the advantages of compact structure, small size, light weight, convenience for operation, and the like and solves the problems of slower mounting, complicated operation and low efficiency of the traditional clamping device.

The invention relates to a portable multi-purpose quick self-locking fixture. The fixture comprises a clamping device, wherein the clamping device adopts a wedge clamping mechanism, the wedge clamping mechanism comprises a wedge column (11) and rollers (12), a piston rod mounting screw hole is formed in the back end surface of the wedge column (11), and the rollers (12) are arranged on two sides of the wedge column (11). Compared with the prior art, the fixture has the beneficial effects as follows: clamping self-locking is controlled by the aid of a single air source, and the fixture can clamp a to-be-machined part firmly and realize quick self-locking in an instant and can also release the to-be-machined part in an instant after machining is completed, so that the mounting and dismounting efficiency is substantially improved; the fixture is high in universality and applicable to machining equipment such as machining centers, gang drills, drilling machines, milling machines, special machines and the like; the fixture is small in shape and portable, an air cylinder can be used as a handle when the self-locking fixture is required to be moved on a workbench, thus quick movement is realized, and then machining of multiple to-be-machined planes or machining in multiple steps such as surface reaming, tapping, hole drilling, hole reaming and the like is realized.

The present invention relates to an easy-to-plug waterproof fiber optic connector, comprising an adapter assembly and a connector assembly, is characterized in that the adapter assembly comprises an adapter cylinder, wherein a front chamber and a rear chamber are respectively arranged inside the adapter cylinder, and a inscribed cylinder is arranged in the front chamber, a claw is arranged betweenthe inscribed cylinder and the inner wall of the adapter cylinder, a hook is arranged in the rear chamber, a nesting is arranged at rear end of an inner bore of the inscribed cylinder, and the nesting extends to the rear chamber, a ceramic sleeve is provided inside the nesting; and the connector assembly comprises a connector cylinder, wherein sealing rings configured for the inner bore of frontchamber of the adapter cylinder are disposed on front periphery of the connector cylinder, an elastic jacket is sleeved onto the middle front portion of the connector cylinder, a card slot configuredfor the adapter claw is arranged on outer periphery of the connector cylinder in the elastic jacket, a ferrule assembly is arranged in the inner bore of the connector cylinder, and front end of the ferrule assembly and the inner bore of front portion of the adapter cylinder are configured with each other. The fiber optic connector not only has compact structure, reasonable setting, good waterproofperformance, but also is easy to plug and has reliable connection.

Disclosed is a support drill jig structure for drilling a double lug piece part. The support drill jig structure for drilling the double lug piece part comprises a drill jig body and a lug piece support, wherein a drill jig hole and a through hole connected with the lug piece support are formed in a drill jig plate of the drill jig body, a compression hole vertical to the through hole and a compression bolt are further located on the outer side of the drill jig plate, the lug piece support is of a structure composed of a hooked bolt and a hooked sleeve, two bending hook supports are respectively corresponding to two lug pieces of a part, a wedge groove is formed in the upper end of the hooked sleeve, and the compression bolt is pressed in the wedge groove through the compression hole.

The invention relates to the technical field of petroleum drilling and production equipment, and provides a self-locking casing head. The self-locking casing head comprises a casing head body, wherein the casing head body is provided with a mounting hole; a hanger is arranged in the mounting hole; a sealing assembly is arranged between the hanger and the mounting hole; the casing head body is further provided with a mounting groove; the mounting groove communicates with the mounting hole; a plurality of clamping pieces are uniformly distributed at intervals in the circumferential direction of the mounting hole; the clamping pieces are provided with inverted teeth; the end of the hanger is provided with positive teeth; the inverted teeth are matched with the positive teeth; the clamping pieces are provided with vertical long-strip holes; a rotating shaft penetrates through the long-strip holes; reset elastic pieces are arranged on the clamping pieces; the upper ends of the clamping pieces are connected with the mounting groove through the reset elastic pieces; the lower ends of the clamping pieces abut against the inner wall of the bottom surface of the mounting groove; the bottom surface of a locking piece mounting groove is provided with a locking hole; a locking piece is arranged in the locking hole in a sliding mode in the vertical direction; and the clamping piece is jacked up after sliding. According to the technical scheme, the problem that an oil pipe is prone to loosening in the prior art is solved.

Provided is a mouse trapping cage. One side of a base body is hinged to one side of a cage body. The bottom of a self-locking part is connected with the other side of the base body. The top of the self-locking part is provided with a clamping position for locking the cage body and the base body. A first connecting rod is connected with the cage body. One end of a top rod and the first connecting rod are buckled. The other end of the top rod and the locking rod are connected. A spring pressing piece is installed on the first connecting rod. An installation base is fixed to the base body. A groove locking position is arranged at one end of the installation base so that the locking rod can be placed at the groove locking position when the cage body is opened and the opening state of the cage body can be kept. The other end of the installation base is fixedly connected with the tail portion of a trigger ring through a rotating shaft. A rotating shaft is sleeved with a reset spring. One end of the reset spring abuts against the base body, and the other end of the reset spring is connected with the tail portion of the trigger ring. The two ends of the locking rod are located at the tail portion of the trigger ring. When the trigger ring is pressed down, the tail portion of the trigger ring is lifted up so that the locking rod can be disengaged from the groove locking position. One end of the self-locking spring is connected with the base body, and the other end of the self-locking spring is connected with the cage body. The mouse trapping cage is sensitive in reaction, rapid in self-locking operation, and capable of reducing the vigilance of mice and increasing the mouse trapping rate.

The invention discloses an embracing breast tissue fixing device for nuclear magnetic environment, and relates to the field of medical instruments. The embracing breast tissue fixing device comprisesfour identical finger plate mechanisms, and four finger plate mechanisms are distributed in a circumferentially symmetric manner, and the adjacent two finger plate mechanisms are interlaced. The embracing breast tissue fixing device can realize rapid adjustment and fixation for different sizes of breast tissue in nuclear magnetic environment, and solves the problem that the breast tissue flows andis difficult to fix, the gap between the curved fingers can be adjusted according to the needs of the doctor, providing a flexible and effective space for the operation and improving the efficiency of the operation.

The invention discloses a quick-connecting and self-locking connector assembly comprising a male end and a female end. The internal side of the female end is provided with an elastic jack which is formed by multiple wire springs through uniform arrangement. The male end can be closely plugged in the elastic jack of the female end. The end part of the male end is provided with a first buckle structure. The internal side wall of the female end is provided with a second buckle structure. The first and second buckle structures can be connected in a buckling way. The external side wall of the female end is also provided with a release switch. The first and second buckle structures can be released by the release switch. At least one of the first and second buckle structures is made of non-conductive material. When the male end is plugged in the female end, the first and second buckle structures automatically buckled to realize self-locking so that the male end can be prevented from being automatically unplugged by the influence of external pulling force in the use process, and the connection stability of the male end and the female end can be effectively guaranteed. The release switch is also arranged on the female end so that the first and second buckle structures are enabled to be quickly released and unplugging of the male end is facilitated. The quick-connecting and self-locking connector assembly is simple in structure and convenient to operate and can realize quick plugging and self-locking.

The invention discloses a shell structure of fastener used for safety seat for children. The invention is characterized in that: a gap is formed on one side of the shell; a button is arranged in the gap; a safety belt connection hole is provided at the lower end of the shell; the buckle of safety seat for children consists of a shell, a self-locking mechanism, a left auxiliary insert and a right auxiliary insert; the left and right auxiliary insert cooperate with the self-locking mechanism. Thus the invention realizes safe self-lock, convenient plugging of one-time, convenient and fast use, rapid plugging, safety and reliability. The product is manufactured by engineering plastics to achieve high intensity. When accident happens, the product can effectively protect child from disengaging from the seat by inertance and protect his life at the first time. The structure of the safety fastener is especially applicable to safety protection to infant of 0 to 13 kilograms in the automobile. In addition, compared with the prior arts, the product has outstanding substantive features and marked progresses.

The invention relates to an elevator with multi-stage safety protection. Working ropes and safety ropes are arranged on the elevator, the elevator comprises at least one safety device, each safety device is arranged on the elevator and fixedly connected with the elevator, each safety device is glidingly connected with each working rope and each safety rope, respectively, a plurality of safety devices are symmetrically distributed and / or in stage-by-stage sequential connection, the stage-by-stage sequential connection means that the safety rope of the previous safety device is used as the working rope of the next safety device, and when a transmission rope of the electronically-controlled elevator breaks suddenly, each safety device can realize a self-locking function rapidly, so that the safety of the elevator is improved, and personal casualties are avoided; and the elevator is provided with the plurality of safety devices for multi-stage protection, so that the reliability is improved.

The invention discloses a master-slave remote operating system for minimally invasive vascular interventional surgery, which belongs to the technical field of medical equipment; The computer and the slave-end posture adjustment platform; the doctor control platform simulates the movement of the catheter and guide wire medical behavior according to the doctor's operation, and sends the motion information corresponding to the movement to the master-end control computer; the master-end control computer will receive The motion information is sent to the slave control computer as a motion control command; the slave control computer sends the received motion control command to the guide wire catheter manipulator; the guide wire catheter manipulator moves according to the received motion control command, and then controls the patient Carry out medical behavior; the present invention can complete the intervention action according to the doctor's operation information, and can feed back the real-time tactile information to the doctor, improving the safety and operability of the interventional operation.

The invention provides a toolkit transfer rope slow release device which comprises a center shaft, a loading wheel, a ratchet wheel, an unlocking disc, an unlocking block, a pawl, a lifting shaft and a handle, the handle is rotated forwards to drive the unlocking disc to rotate around the center shaft, the unlocking disc rotates to drive the unlocking block to rotate, the front end of the unlocking block abuts against the tail end of the pawl so that the front end of the pawl can be separated from the ratchet wheel, and the lifting shaft is driven to rotate. The unlocking block drives the pawl and the loading wheel to rotate together, the steel wire rope is released, the pawl is clamped on the ratchet wheel again due to the return effect of the torsional spring after the steel wire rope is released for a short distance, rotation release of the loading wheel is stopped, and controllable release of the steel wire rope is completed by continuously driving the unlocking disc; when the handle is driven reversely, the unlocking disc rotates reversely, the loading wheel is driven by the lifting shaft to rotate reversely, and the steel wire rope is retracted. The tool bag can be safely and stably transferred to the surface of the moon from the detector under the condition of manual operation, and the situation that transferred objects such as the tool bag quickly descend due to the fact that loads are too large, and the transferred objects are damaged is avoided.

The invention belongs to the cable conductor wiring device technical field, and specifically relates to a wiring terminal comprising a terminal body and a contact pin; the terminal body is provided with a locking mechanism; a wiring end is formed on one end of the terminal body so as to terminate wires in various connection modes; a contact hole is formed on the other end of the terminal body; one end of the contact pin is provided with a buckle matched with the locking mechanism on the contact hole; the locking mechanism can fix the contact pin into the contact hole or separate the contact pin from the contact hole; the contact pin inserts into the contact hole of the terminal body, and is fixed into / separated from the contact hole through the locking mechanism, thus realizing fast self-locking or separating of the wiring terminal; the wiring terminal is easy and fast in mounting, good in connecting reliability, and suitable for connecting cables or conductors of all specifications and types.

The invention relates to a quick self-locking hook. The quick self-locking hook comprises an assembling part and a hook body which are connected with each other. The hook body comprises a rod body contact part at the upper section and an extension part at the lower section; and the assembling part is arranged below the extension part. The inner side of the rod body contact part is provided with an arc-shaped first curved surface. The extension part extends downwards in inclined mode so that gravity center of the hook body is located below a first curved surface, and the hook body is in a shape like a question mark . The free end of the rod body contact part is provided with an open groove. A rotating shaft penetrates through the middle of the self-locking piece to be pivoted to the open groove, and the self-locking piece can rotate around the rotating shaft. One end of the self-locking piece is an adjusting part embedded into one side of the open groove, and the other end of the self-locking piece is an abutting part used for fastening the rod body. The inner side of the self-locking piece is provided with an arc-shaped second curved surface which is concentric with the first curved surface and has the same diameter with the first curved surface. A central angle B corresponding to an arc projection formed after the first curved surface and the second curved surface are aligned is larger than 180 degrees. The hook can rapidly achieve automatic locking, is simple in structure, does not need to waste time and labor, and is high in working efficiency.

The invention relates to a multi-core optical fiber connector. The multi-core optical fiber connector comprises an adapter assembly and a connector assembly. The connector is characterized in that the adapter assembly comprises an adapter cylinder; a front cavity and a rear cavity are arranged in the adapter cylinder; an inner connecting cylinder is arranged in the front cavity; a clamping jaw is arranged between the inner connecting cylinder and the inner wall of the adapter cylinder; a butt joint cavity is arranged in the rear cavity; the butt joint cavity is provided with clamping hooks; the butt joint cavity is communicated with the inner connecting cylinder; the connector assembly comprises a connector cylinder; the front portion of the connector cylinder is connected with the front cavity of the cylinder barrel in a matched mode; the middle front portion of the connector cylinder is sleeved with an elastic outer sleeve; the periphery of the connector cylinder in the elastic outer sleeve is provided with clamping grooves connected with adapter clamping jaw in a clamped mode; and the inner hole of the connector cylinder is provided with a multi-core insertion core assembly; the front end of the multi-core insertion core assembly is connected with the butt joint cavity of the adapter cylinder. Parallel butt joint of multiple optical fibers can be achieved. The multi-core optical fiber connector has the advantages of reasonable and compact structure, good waterproof performance, easiness and convenience in plugging and using and reliable connection.

The invention relates to a pneumatic self-locking clamping fixture. The fixture comprises a clamping device, wherein the clamping device adopts a wedge clamping mechanism, the wedge clamping mechanism comprises a wedge column (10) and a roller (9), a piston rod mounting double-screw bolt is arranged at one end of the wedge column (10), and the roller (9) is arranged on an inclined working surface of the wedge column (10). Compared with the prior art, the fixture has the beneficial effects as follows: clamping self-locking is controlled by the aid of a double-acting air cylinder, convenient and quick mounting and dismounting are realized, automatic and synchronous clamping is realized by the aid of a double-pressing-plate clamping structure, and the fixture can clamp a to-be-machined part firmly and realize quick self-locking in an instant and can also release the to-be-machined part in an instant after machining is completed, so that the mounting and dismounting efficiency is substantially improved; two guiding columns are arranged to form a cross structure, and thus relatively small workpieces can be clamped to be machined; the fixture has an oblong appearance, and multiple machining stations can be arranged according to sizes of workpieces, accordingly, the multiple workpieces can be machined simultaneously, the machining cost is saved, and the economic benefit is substantially increased.

The invention provides a self locking mechanism and an unmanned aerial vehicle and mainly relates to the technical field of unmanned aerial vehicles. The self-locking mechanism comprises a fixing base, a self locking assembly and a connection support, wherein the fixing base is hinged to the connection support; the self locking assembly is connected with the fixing base; and the fixing base is in a rotating state relative to the connection support, and thus the self locking assembly is in clamped fit with the connection support selectively. The self locking mechanism provided by the invention can achieve self locking quickly, the structure in the locked state is small in occupied space, and using safety and convenience are improved. The unmanned aerial vehicle provided by the invention is safer in use and more convenient to store.

The invention relates to an easy-plug waterproof optical fiber connector, which includes an adapter assembly and a connector assembly. Connecting tube, claws are set between the inner tube and the inner wall of the adapter tube, the rear cavity is provided with a hook, the rear end of the inner hole of the inner tube is provided with a nest, the nest extends to the rear cavity, and the nest is installed A ceramic sleeve is provided, the connector assembly includes a connector cylinder, the outer periphery of the front end of the connector cylinder is provided with a sealing ring that is configured with the inner hole of the front cavity of the adapter, and the middle and front part of the connector cylinder is covered with an elastic jacket , the outer periphery of the connector cylinder in the elastic jacket is provided with a card slot that is configured with the adapter claws, the inner hole of the connector cylinder is provided with a ferrule assembly, and the front end of the ferrule assembly is connected to the inner surface of the front part of the adapter cylinder. The inner hole of the cylinder is configured. The invention not only has compact structure, reasonable setting and good waterproof performance, but also is easy to plug and use and reliable to connect.

The invention discloses a pressure assembly of an automatic mechanical locking box. The pressure assembly comprises a set of convex rods which are connected with the exteriors of a set of opposite side faces of the box, a frame matched with the box, a C-shaped groove formed in the frame, and a pressure mechanism arranged in a frame supporting rod; the C-shaped groove comprises a first through holeand a second through hole; the pressure mechanism comprises a lower movable rod, a lower end pressure structure, an upper movable rod, an upper end pressure structure, an elastic part, a locking structure, a transmission structure and a straight tooth rod; the locking structure comprises a fixing part for limiting upward moving of the elastic part, and a convex strip arranged in the axial direction of the upper movable rod; the lower end pressure structure comprises a first matched end face and a first strip-shaped hole or a first strip-shaped groove; and the upper end pressure structure comprises a second matched end face and a second strip-shaped hole or a second strip-shaped groove. Self-locking and unlocking structures are pure mechanical structures, automatic self-locking and unlocking can be achieved, the efficiency is high, energy consumption is low, and safety is high.

The invention discloses an automatic locking lock catch, a display screen assembly and a splicing screen. The automatic locking lock catch comprises a base, a releasing part and a lock part, wherein the base is provided with a communication part which communicates the outer side of the base with the inner side of the base; the releasing part is mounted on the inner side of the base, is provided with a releasing piece, is communicated with the outer side of the base through the communication part and is driven to be switched between a first position and a second position on the inner side of the base; the lock part is mounted on the inner side of the base and is provided with a lock piece and a first elastic piece; the first elastic piece is butted with each of the lock piece and the base;when the releasing piece is located at the first position and limits the lock piece, the lock piece is accommodated on the inner side of the base; and when the releasing piece is driven and switched to the second position, the lock piece is released from the releasing piece and is driven by the first elastic piece to extend to the outer side of the base. The automatic locking lock catch is simplein mounting process and is capable of rapidly and automatically locking each display screen assembly when splicing the display screen assembly.

The invention relates to a self-locking structure for a screen. The self-locking structure comprises a rotating shaft one end of which is provided with a screen connecting part, a steel ball guide rail is fixedly sleeved on the rotating shaft; the steel ball guide rail is provided with a first rail; the first rail comprises a downward pull rail groove formed in the outer surface of the steel ball guide rail and a limit rail groove; the downward pull rail groove is arranged close to the screen connecting part; the rotating shaft is sleeved with a shell in a rotating way; the shell is provided with a cavity capable of movably accommodating the steel ball guide rail; a second rail is concavely arranged on the inner wall of the cavity along the axis direction of the rotating shaft; steel balls are movably mounted on the first rail and the second rail; a first connection part used for fixedly mounting a screen spring is arranged on one end, far away from the screen connecting part, of the shell; the other end of the rotating shaft penetrates through and stretches out of the shell to form a second connecting part. The self-locking structure of the screen is unique in structure, the rapid self-locking is realized under the counter-acting force effect of the screen spring after the screen is pulled down, the self-locking stability is stronger, the convenience and rapidness in use are improved, and the production cost is lower.

The invention relates to the technical field of filters, in particular to a filter fixing connecting assembly with a self-locking structure. The assembly comprises a filter body, a mounting cover being arranged in the filter body, fixing columns being fixedly connected to the surface of the mounting cover, a top plate being fixedly connected to the top ends of the fixing columns, the fixing columns being in two groups, a lifting rod being inserted into the surface of the top plate, and a fixing ring being fixedly connected to the bottom end of the mounting cover; a magnetic suction cylinder, mounted on the inner bottom wall of the filter body, and a mounting bottom ring being arranged at the bottom end of the magnetic suction cylinder. According to the invention, when the two groups of magnetic suction rods are adsorbed into the magnetic suction cylinders. The device can realize a certain self-locking function, the problem that an existing connecting assembly cannot realize the self-locking function is solved, the stability of the filter during use is ensured, the mounting cover is automatically mounted on the surface of the filter body through the cooperation between the assemblies, and the connection stability is greatly improved.

Provided is a mouse trapping cage. One side of a base body is hinged to one side of a cage body. The bottom of a self-locking part is connected with the other side of the base body. The top of the self-locking part is provided with a clamping position for locking the cage body and the base body. A first connecting rod is connected with the cage body. One end of a top rod and the first connecting rod are buckled. The other end of the top rod and the locking rod are connected. A spring pressing piece is installed on the first connecting rod. An installation base is fixed to the base body. A groove locking position is arranged at one end of the installation base so that the locking rod can be placed at the groove locking position when the cage body is opened and the opening state of the cage body can be kept. The other end of the installation base is fixedly connected with the tail portion of a trigger ring through a rotating shaft. A rotating shaft is sleeved with a reset spring. One end of the reset spring abuts against the base body, and the other end of the reset spring is connected with the tail portion of the trigger ring. The two ends of the locking rod are located at the tail portion of the trigger ring. When the trigger ring is pressed down, the tail portion of the trigger ring is lifted up so that the locking rod can be disengaged from the groove locking position. One end of the self-locking spring is connected with the base body, and the other end of the self-locking spring is connected with the cage body. The mouse trapping cage is sensitive in reaction, rapid in self-locking operation, and capable of reducing the vigilance of mice and increasing the mouse trapping rate.

The invention relates to a portable multi-purpose quick self-locking fixture. The fixture comprises a clamping device, wherein the clamping device adopts a wedge clamping mechanism, the wedge clamping mechanism comprises a wedge column (11) and rollers (12), a piston rod mounting screw hole is formed in the back end surface of the wedge column (11), and the rollers (12) are arranged on two sides of the wedge column (11). Compared with the prior art, the fixture has the beneficial effects as follows: clamping self-locking is controlled by the aid of a single air source, and the fixture can clamp a to-be-machined part firmly and realize quick self-locking in an instant and can also release the to-be-machined part in an instant after machining is completed, so that the mounting and dismounting efficiency is substantially improved; the fixture is high in universality and applicable to machining equipment such as machining centers, gang drills, drilling machines, milling machines, special machines and the like; the fixture is small in shape and portable, an air cylinder can be used as a handle when the self-locking fixture is required to be moved on a workbench, thus quick movement is realized, and then machining of multiple to-be-machined planes or machining in multiple steps such as surface reaming, tapping, hole drilling, hole reaming and the like is realized.

The invention discloses a position and posture mechanically adjustable movable platform, which belongs to the technical field of medical equipment; it includes: a six-link mechanical arm, a turntable, a lifting mechanism and a base; The vertical movement and self-locking of the peripheral equipment on the movable platform; the six-link mechanical arm is installed on the lifting mechanism to realize the adjustment and adjustment of the translation of the peripheral equipment in the horizontal plane and the rotation around the vertical direction. Locking; the turntable is installed on the six-link mechanical arm to realize the adjustment and self-locking of the peripheral equipment rotating around the center line of the turntable; the base is used to support the adjustment of the six-link mechanical arm, turntable and lifting mechanism mechanism, and realize the translation and steering of the adjustment mechanism on the ground; the platform realizes the support and adjustment functions through the mechanical structure, improves the accuracy, stability and safety of the operation, and conveniently realizes the connection and separation of the slave system and the hospital bed .