35results about How to "Improve contact reliability" patented technology

The invention discloses a vertical 4H-SiC photoconductive switch, which comprises a SiC substrate, a front electrode, a passivation layer and a back electrode, and is characterized in that the front electrode is located on the upper surface of the SiC substrate, and the passivation layer is located on the upper surface of the SiC substrate and is arranged at the edge of the front electrode; the back electrode is located on the lower surface of the SiC substrate; wherein the front electrode comprises an annular electrode and a mesh electrode, and the mesh electrode is arranged in the inner circle of the annular electrode and connected with the annular electrode; a plurality of concentric terminal protection rings are also arranged in the SiC substrate below the outer side of the front electrode, and the circle centers of the longitudinal projections of the plurality of terminal protection rings coincide with the circle centers of the longitudinal projections of the annular electrodes. According to the structural design, the electric field concentration effect near the electrode caused by non-uniform distribution of the electric field on the surface of the photoconductive switch is relieved, premature breakdown of the device is avoided, and the voltage endurance capability of the photoconductive switch is doubled; and meanwhile, the uniformity of current distribution in the photoconductive switch is improved.

The utility model provides a waterproof wire clamp which comprises an upper box body and a lower box body, one end of the upper box body and one end of the lower box body are hinged through a hinge shaft, and the other end of the upper box body and the other end of the lower box body are clamped through a buckle structure. Two fixed seats distributed at an interval are arranged in the lower box body, a conductive wire clamp for connecting a detonating bus and a leg wire is connected in each fixed seat, two crimping seats corresponding to the two conductive wire clamps respectively are arranged on the upper box body, and a bus clamping groove and a leg wire clamping groove with upward openings are formed in the tops of the conductive wire clamps; the width of the bus clamping groove is the same as the diameter of an inner core of a bus, the width of the leg wire clamping groove is the same as the diameter of an inner core of a leg wire, the conductive wire clamp is provided with a puncturing structure, and the puncturing structure is arranged close to the bus clamping groove, so that the skin of the bus entering the bus clamping groove is punctured by the puncturing structure. According to the wire clamp, the wire skin of the bus entering the bus clamping groove is punctured, the contact area of the inner core of the bus and the conductive wire clamp is increased, and the reliability and stability of connection between the bus and the conductive wire clamp are improved.

This utility model discloses a flexible pin connector, including a plug housing, a plug insulator inside the plug housing, a pin mounting hole in the plug insulator, and a flexible pin installed in the pin mounting hole. The flexible pin includes a central body portion, a front spring portion extending from the front end of the central body portion, and a rear crimp portion connected to the rear end of the central body portion. The rear crimp portion is connected to a solder pin or cable. The central body portion and the pin mounting hole are connected by an interference fit. This utility model's flexible pin connector has significant advantages. The interference fit between the flexible pin and the rigid socket enables miniaturization. It features low insertion and extraction force, reliable contact, and a double spring structure that ensures high mechanical life and durability. It exhibits stable performance under high-speed vibration and impact, making it widely applicable in various fields. The one-piece stamped flexible pin avoids pin shrinkage, resulting in consistent product quality, high reliability, simple processing, and low cost, making it highly competitive in the market.

The application belongs to the technical field of robots, and discloses a three-dimensional force sensing-based detection and balance control method and system for a legged robot. The method comprises the following steps: determining the number of the leg of the multi-legged robot that slips according to a three-dimensional force signal of the multi-legged robot in contact with the ground; and adjusting the multi-legged robot in the following manner when slipping occurs: (1) adjusting the height of the center of mass of the multi-legged robot; (2) for the leg that slips, actively adjusting the joint stiffness and joint damping of the leg to relieve instantaneous impact; applying foot end acceleration and adjusting normal support force to suppress slipping; and adjusting the target foot landing point at the next time. Through the application, the balance of the robot can be quickly restored after slipping occurs, the risk of instability is reduced, and the stability of the robot in a complex environment is ensured.

A kind of double half-ring type anti-settling buried protection device, including buried cylinder, buried upper cover and two clamps;The buried cylinder is the cylinder that is permeable up and down, the upper end of the buried cylinder is integrally formed with the detection cylinder section for built-in installation and protection gas detector;The buried upper cover can be detachably installed at the upper end of the detection cylinder section, for closing the upper port of the detection cylinder section, so as to protect gas detector when burying;Two clamps are detachably connected together and tightly embrace on the outer circumference of the detection cylinder section;The outer circumference of the clamp is integrally formed with anti-settling half-ring, and two anti-settling half-rings are synthesized into whole circular anti-settling ring.The buried cylinder of the utility model can effectively increase the contact reliability with the earth by two anti-settling half-rings, so that the buried cylinder can be stably fixed in the earth, the pressure capacity of buried protection device is enhanced, and settlement is avoided, and the design of two clamps can effectively reduce the installation difficulty of the whole device.

The invention discloses a small high-speed stable transmission automobile Ethernet connector which comprises a main body and a connecting mechanism, a female positioning sleeve is fixedly connected in the main body, and a second sliding groove is formed in the inner wall of the female positioning sleeve; the elastic mechanism comprises an elastic plate with the middle protruding towards the inner side, a middle plate hinged to the elastic plate, a first inclined block hinged to the middle plate and a rotating mechanism used for transmitting rotating force. The supporting mechanism comprises a limiting frame and a supporting plate. An elastic piece is arranged between the end, close to the flexible drag chain, of the supporting plate and the connecting piece. A plurality of auxiliary grooves are formed in the inner wall of the body, the outer ends of the supporting plates can be contained in the auxiliary grooves, the thickness of the outer ends of the supporting plates is smaller than the width of the auxiliary grooves, and the body protrudes out of the male positioning sleeve. By means of the structure, the automobile Ethernet connector can achieve stable transmission, and the automobile Ethernet connector can be separated more easily when needing to be separated.

This application discloses a semiconductor device structure, a CMOS structure, and a method for fabricating the same, relating to the field of semiconductor device technology. The semiconductor device structure employs two buried oxide layers interleaved within a three-layer silicon SOI substrate. The epitaxial initiation layer of the source / drain regions is transferred from the top silicon layer of the SOI substrate to an intermediate or supporting silicon layer within the SOI substrate. This solves a series of process problems arising from the development of SOI technology nodes, particularly in epitaxially growing source / drain regions on a thinner top silicon layer, thus improving the epitaxial growth quality and structural stability of the source / drain regions. Furthermore, the parallel overlap length between the source / drain regions and the gate structure is reduced, significantly decreasing the parasitic capacitance between the source / drain regions and the gate structure. Moreover, the source / drain regions can directly contact the channel, enhancing the contact reliability between the source / drain regions and the channel, enabling stress control of the channel, and improving channel mobility, thus possessing significant application value.

This invention relates to the field of low-voltage switchgear technology, specifically a low-voltage complete power distribution device, including a power distribution cabinet, a drawer unit slidably disposed within the power distribution cabinet, a power distribution busbar installed within the power distribution cabinet, and a conductive clamp plate installed on the rear side of the drawer unit for contacting and conducting electricity with the power distribution busbar. A fixed support and a fixed support plate are fixedly disposed on the drawer unit. An elastic component is connected between the conductive clamp plate and the fixed support plate to elastically press the conductive clamp plate against the power distribution busbar to provide initial clamping force. Through the cooperation of the elastic component and the drive component, during normal operation, a push spring applies an initial clamping force to the conductive clamp plate via a sliding guide rod to ensure basic contact. When the contact area becomes loose and heats up, the thermally sensitive medium in the sealed cavity expands due to heat, driving the linkage to apply additional clamping force to the conductive clamp plate. This achieves adaptive adjustment of the contact pressure based on the degree of heat generation, effectively suppressing the increase in contact resistance.

According to the relay, when a first contact part and a second contact part are separated from each other or make contact with each other to generate an electric arc, a magnetic field formed by a first permanent magnet can play a traction role on the electric arc, and the arc blowing and arc discharging effects are achieved. The electric arc moves along the contact surface, and when the electric arc moves to the arc isolating groove, the arc isolating groove can play a role in isolating, lengthening and blocking the electric arc, so that the arcing time is shortened. Therefore, the defects that the electric arc ablates the inner cavity and causes relay explosion and the like can be effectively avoided, the product performance can still be ensured even under the condition of high load, and the product failure probability can be reduced. And meanwhile, the first contact part is synchronously contacted with the at least two sheet units, and the first contact part and the second contact part have at least two contact points, so that the shunting effect is achieved, the contact resistance can be reduced, the contact stability and reliability can be improved, and the temperature rise can be reduced.

The invention relates to the field of vacuum pumps, in particular to a diaphragm vacuum pump. The suction pump comprises a pump body, a working cavity is formed in the pump body, a diaphragm is arranged in the working cavity, and the working cavity is divided into a suction cavity and an air cavity by the diaphragm; the suction cavity is communicated with an air inlet hole and an air outlet hole, the air outlet hole is formed in the upper portion, the air inlet hole is formed in the lower portion, and ball valves are arranged in the air inlet hole and the air outlet hole; the ball valve comprises a ball seat and a sealing ball, an inner cavity of the ball seat comprises a cylindrical face and a spherical face connected to the bottom of the cylindrical face, and a buffering supporting rod is arranged in the sealing ball. In the falling process of the sealing ball, the sealing ball is buffered through the buffering supporting rod, the impact force between the sealing ball and the ball seat is reduced, the service life of the sealing ball is prolonged, meanwhile, through cooperation of the buffering supporting rod and the spherical surface of the bottom of the ball seat, the sealing ball rotates with the buffering supporting rod as a fulcrum in the falling process, and the sealing ball is prevented from falling off. And sundries adhered to the communicating opening in the bottom of the ball seat are brought out, the contact reliability of the sealing ball and the ball seat is improved, and then the sealing performance is improved.

This utility model belongs to the field of contact sheet technology, and particularly relates to a contact sheet for a switch socket, including a fixing part, with a first extension part on both the left and right sides of the fixing part. The side of the first extension part is provided with a trapezoidal groove, one end of which abuts against the fixing part, and the other end of which is connected to a trapezoidal protrusion. A second extension part extends from the other side of the first extension part, and a first angle is formed between the first extension part and the second extension part, with the first angle ranging from 80° to 82°. A trapezoidal groove and a trapezoidal protrusion are mirror-image provided on one side of the second extension part. A support part is provided at the bottom of the fixing part, and a second angle is formed between the support part and the fixing part, with the second angle ranging from 95° to 97°. A contact part extends horizontally from the end of the support part in a direction parallel to the fixing part. A silver dot is provided at each of the left and right ends of the contact part, and the silver dot is fixed to the surface of the contact part by riveting.

The invention discloses an anti-gastroesophageal reflux nursing device for the digestive system department, and particularly relates to the field of nursing devices. Comprising a support plate; the neck pillow is arranged on one side of the supporting plate; the two rotating plates are rotationally connected to the supporting plates on the two sides of the neck pillow; the headrest is connected between the two rotating plates, and one side of the headrest is matched with the outer surface of the neck pillow; the supporting rod is connected between the two rotating plates, and the supporting rod is arranged on the side away from the neck pillow; the telescopic rod is arranged between the supporting plate and the driving rod, and the telescopic rod is of an arc-shaped structure and is located on the motion trail of the driving rod; and the driving assembly is used for quickly adjusting the extension of the telescopic rod. By the adoption of the technical scheme, the problem that an existing bed head lifting measure is inconvenient for a patient to autonomously adjust is solved, the patient can autonomously adjust the angle of the headrest, and convenience is improved.

The invention relates to the technical field of storage batteries, and discloses a storage battery health state on-line evaluation system, which comprises a magnetic type probe and a data acquisition device, which are used for acquiring a voltage sequence, a pole temperature sequence, an internal resistance sequence, a pole micro-vibration signal and an environment temperature and humidity sequence; the data processing module is configured to obtain an internal resistance health index according to the pole temperature sequence; obtaining a thermal health index according to the pole temperature sequence; obtaining a mechanical health index according to the pole micro-vibration signal; obtaining an environmental health index according to the environmental temperature and humidity sequence; obtaining a stability index according to the pole temperature sequence and the voltage sequence; obtaining a system consistency index according to a residual error generated by a dynamic relation model of the voltage sequence, the pole temperature sequence and the internal resistance sequence; and analyzing the indexes by adopting a D-S evidence theory to obtain a health state evaluation result. According to the method provided by the invention, the data acquisition convenience is high, and the evaluation result is more accurate.

The utility model provides a kind of vehicle-mounted equipment high-strength tethering device, belong to vehicle compartment technical field, this vehicle-mounted equipment high-strength tethering device includes vehicle compartment;Supporting rod insertion slot is equipped with multiple, multiple supporting rod insertion slot is respectively opened in the upper and lower inner wall and side inner wall of vehicle compartment;Supporting component, supporting component is equipped with multiple groups, and each group of supporting component includes support bottom bar, adjusting support rotation slot, height adjusting sleeve, two-way screw groove, upper threaded support rod and upper insertion slot insertion block, support bottom bar is slidably connected in supporting rod insertion slot, adjusting support rotation slot is opened in the circumference inner wall of support bottom bar, the adaptability of device to different size and shape compartment is enhanced, avoid the problem of uneven stress and unstable installation caused by single point of traditional fixed support.

The utility model discloses a connector, comprising a shielding assembly, the shielding assembly comprises a square plug-in end and a circular locking end, the shielding assembly is provided with a locking groove, and the plug-in end is provided with a shielding elastic sheet; the shell assembly is provided with a containing through hole used for containing the shielding assembly, and an elastic locking piece with one end capable of being clamped into the locking groove is arranged in the containing through hole; one end of the lock cylinder is clamped into a gap between the elastic locking piece and the side wall of the accommodating through hole; and the waterproof fixing assembly comprises a first waterproof fixing structure which is arranged at the plugging end and is fixed on the shell assembly, and a second waterproof fixing structure which is arranged at the locking end and is fixed on the shell assembly. The plug-in end of the shielding assembly is optimized to be square, so that the design area of the shielding elastic sheet is increased, the area in the width direction is increased, and the contact reliability of the connector in a vibration environment is improved.

The invention belongs to the technical field of punching devices, and provides an electronic detection mechanism for a punching die and the punching die, and the electronic detection mechanism comprises a socket assembly which is arranged on a supporting seat and comprises a first conductive block electrically connected with an external power supply; and the detection unit is arranged on the punching station, the detection unit comprises a detection piece and a second conductive block electrically connected with the detection piece, and the detection piece is used for detecting the workpiece to be machined on the punching station. Compared with the prior art, the socket assembly is arranged on the supporting seat, the detection unit is arranged on the detachable punching station, and a contact type electric connection mode of the first conductive block and the second conductive block is utilized, so that automatic connection and disconnection of a power supply of the detection unit are realized; the design avoids the problems of cable winding, abrasion and inconvenient plugging caused by traditional fixed wiring, and significantly improves the convenience of die replacement and backer assembly debugging.

A multifunctional convenient auxiliary alarm contact includes a shell, at least one set of contact module and a driving mechanism. The shell is symmetrically provided with mounting positions on both sides; the contact module is arranged in any side mounting position and includes three wiring terminals and a reciprocating swing movable contact piece. One end of the movable contact piece is connected with the first wiring terminal, and the other end is selectively contacted with the second or third wiring terminal to realize the circuit on-off state conversion. The driving mechanism includes the first transmission member and the second transmission member which are connected or relatively moved. The movement planes of the two members at least partially overlap, and the power is transmitted through the collision structure in the overlapping area. The first transmission member is provided with the first touch part which drives a movable contact piece, and the second transmission member is provided with the second touch part which drives another movable contact piece. By increasing or reducing the contact module or replacing the transmission member and handle module, the OF, SD, 2NC, 1NO1NC, OF+SD, OF+OF multiple functions can be realized, the universality is improved, and the material and production complexity are reduced.

The invention provides a probe which is high in contact reliability. The probe includes: an elastic portion; a first connection portion connected to a first end portion, which is one of the two ends of the elastic portion in the first direction; and a second connection part connected to a second end part, which is the other end part. The elastic portion has: a first portion extending from the first end portion in a second direction intersecting the first direction; a second portion extending from the second end toward the same side as the first portion in the second direction; and a curved portion having a curved shape that connects an end portion of the first portion that is farther from the first end portion in both ends in the second direction and an end portion of the second portion that is farther from the second end portion in both ends in the second direction. A length in the first direction between an end portion of the first connection portion connected to the first end portion and an end portion of the second connection portion connected to the second end portion is longer than a curved inner diameter of the elastic portion.

The device comprises a shell, wherein a circuit board is arranged in the shell; one side edge of the circuit board is adjacent to the inner wall of the shell, the shell is provided with a contact elastic piece extending and protruding towards the circuit board, the circuit board is provided with a concave contact area corresponding to the contact elastic piece in a matched mode, and the contact elastic piece is clamped in the concave contact area; the contact elastic sheet comprises a bending extension part which is bent on the shell surface of the shell, and a half-wrapped contact which is arranged at one end, far away from the shell, of the bending extension part; the recessed contact area comprises a groove, and the half-wrapped contact is clamped in the groove and abuts against the inner wall of the groove. According to the utility model, the contact head of the contact spring sheet is semi-enclosed, the circuit board is provided with the corresponding recessed contact area, the contact spring sheet shrinks inwards and is extruded into the recessed contact area during assembly, the elasticity of the contact spring sheet is released after assembly, the contact spring sheet is in reliable contact with the recessed contact area, and the contact reliability and stability of the housing and the circuit board are increased.

The utility model belongs to the field of micro motor, concretely relates to a riveting brush, including brush holder and brush piece, the brush piece includes support arm and contact arm, and the support arm and contact arm have the bending part of arc shape between, the support arm riveting is on the brush holder, the tail of contact arm has two contact pieces of symmetrical distribution, and two contact pieces respectively are provided with silver palladium contact layer on the side of support arm, the support arm and contact arm of brush piece have the bending part of arc shape between, and the bending part can increase the elasticity of brush piece, effectively enhances the contact pressure of contact arm, is favorable for promoting the contact reliability of brush piece, and two contact pieces of contact arm contact the surface of commutator of high -speed rotation through silver palladium contact layer, can promote the hardness and wear resistance of contact surface, can effectively reduce the contact resistance rise of abrasion, is favorable for promoting the working reliability and prolonging the service life of micro motor.

This utility model discloses a moving spring bracket, a moving spring structure, and an electromagnetic relay. The moving spring bracket includes a fixed part and a support part arranged and opposite to each other along a first direction. The support part supports a bridge-type moving spring. The fixed part has at least one positioning part on each side of a second direction. The positioning parts on both sides of the fixed part correspond one-to-one, forming at least one set of paired positioning parts. The two positioning parts in each set are opposite to at least one bridge-type moving spring supported by the support part in the first direction, so as to provide an elastic element between the positioning part and the bridge-type moving spring. The first direction and the second direction are perpendicular to each other, and the second direction is consistent with the length direction of the bridge-type moving spring supported by the support part. The moving spring bracket of this utility model can replace the traditional contact support, providing a structural basis for realizing multi-point support of the bridge-type moving spring. This structural design helps to optimize the force distribution of the bridge-type moving spring and can significantly reduce the vibration amplitude during the breaking process.

The invention discloses a power inductor and a manufacturing method thereof.The coil of the power inductor comprises at least two electrode composite layers, each electrode composite layer is provided with a double-face Cu layer, the at least two electrode composite layers are connected in a laminated mode through a solder layer, a Ni layer and an Au layer are sequentially arranged on the Cu layer at the connecting position of every two adjacent electrode composite layers, and the Ni layer and the Au layer are arranged on the connecting position of the two adjacent electrode composite layers. And the two Au layers are in laminated connection through the solder layer. According to the invention, a new plating layer structure of the electrode composite layer is adopted, the Ni layer and the Au layer are added, the wettability of Au is good, and the adhesiveness of Au and copper is improved through the Ni layer, so that the wettability of the surface of the electrode can be improved, molten solder can be fully spread on the surface of the electrode in the subsequent welding process, the bubble cavity generation area in the welding process is reduced, and the welding quality is improved. And the interlayer binding force is increased, so that the contact reliability of the product is improved.

The utility model relates to the technical field of resonators, and discloses a surface-mounted quartz crystal resonator, which is characterized in that a sleeve shell is sleeved outside a mounting sleeve block, a splicing type movable groove is formed in the outer wall of the middle part of the bottom surface of the sleeve shell, and inward-retracting abutting blocks are fixedly connected in grooves in the upper side and the lower side of the sleeve shell; a clamping block is fixedly connected to a groove in the top of the end, close to the mounting sleeve block, of the sleeve shell, and one end of the clamping block is bent downwards into a second clamping groove of the mounting sleeve block. According to the utility model, through the arrangement of the inclined plane abutting block, the inward-retracting abutting block and the mounting sleeve block, the inclined plane abutting block abuts against the top of the overlapped part of the mounting sleeve block and the chip, the structural stability and the contact reliability are enhanced, the inward-retracting abutting block and the clamping block are matched with the clamping groove of the mounting sleeve block, and the insertion block is inserted into the circuit board slot, so that rapid assembly is realized, and the connection is firm; the stability of the device in work is ensured, and reliable signal conduction is ensured.

The utility model relates to the field of overvoltage protector especially relates to a six -column overvoltage protector, including box, body, mounting groove, magnetic ring current distributor and flexible conductor, the box upper end is equipped with the mounting groove that is linear array distribution, the mounting groove inside is equipped with the protector body, the body bottom outside is equipped with the magnetic ring current distributor that is linear array distribution, the mounting groove bottom is equipped with flexible conductor. The device can utilize linear array distribution's magnetic ring current distributor forced shunt, so that each body can participate in the protection process, and the protection efficiency is optimized, the problem that the existing six -column overvoltage protector is easy to appear single column use transition and other column to keep intact is solved, does not have the optimization best protection state, causes the resource waste.

This invention discloses a rotary multi-contact isolating switch, comprising an operating part, a positioning part, a switching part, and a driving part. The operating part includes an upper housing, a handle, and a rotating shaft. The positioning part includes a positioning housing, a positioning gear, and a telescopic positioning assembly. The positioning gear is fixed to the bottom end of the rotating shaft, and the telescopic positioning assembly cooperates with the positioning gear to achieve position locking. The switching part includes a lower housing, a stationary contact, and a moving contact assembly, with the moving contact assembly slidably installed within the lower housing. The driving part includes a driven ring and a connecting shaft. The connecting shaft transmits the rotational motion of the rotating shaft to the driven ring, which drives the moving contact assembly to quickly disconnect from the stationary contact. This invention achieves accelerated disconnection of the moving and stationary contacts through the cooperation of the driven ring and the contact support block, effectively shortening the arcing time. The moving contact assembly adopts a double-spring structure, separating the contact pressure of the raised driven wheel from the contact pressure of the contact point, improving the contact stability and vibration resistance reliability during long-term operation. The overall structure is stable and highly reliable.

The invention discloses a surface acoustic wave device processing device and a processing method, comprising a base, a supporting structure; a first guide rail fixed on both sides of the upper end surface of the base; a second guide rail, the second guide rail is slidably arranged on the first guide rail to achieve forward and backward movement; a lifting device, the lifting device is slidably arranged on the second guide rail to achieve lateral movement; two upper glue injection devices, each of which is connected to a cover plate at the lower end; the lifting device is used to drive the two upper glue injection devices to perform lifting and lowering movements; a tray, the tray is arranged above the base, and the upper end surface of the tray is provided with two rows of parallel grooves, each groove is used to place a surface acoustic wave device substrate to be processed; the size of the cover plate matches the groove on the tray to cover and seal the groove; compared with the prior art, the invention shows significant beneficial effects in improving production efficiency, ensuring product quality, reducing production costs, etc.

This invention relates to a positioning and compliant operation method for a construction wall inspection robot, applicable to a robot system including a mobile chassis, a robotic arm, a LiDAR, an inertial measurement unit, and a depth camera for identifying target areas and acquiring local point clouds. The method includes the following steps: S1, degradation perception positioning based on LiDAR-inertial fusion; S2, vision-triggered local operation mode switching and task coordinate system construction; S3, chassis-robotic arm collaborative alignment in the local task coordinate system; S4, end-effector attitude alignment, feedforward compensation, and compliant contact based on the wall normal; S5, performing wall contact detection according to a preset detection sequence. This application does not use a single fixed absolute threshold to hard-cut the degradation direction, but rather uses relative constraint strength and continuous weights to progressively suppress the degradation direction, avoiding pose jumps caused by traditional fixed threshold hard cutting, and improving the positioning continuity and stability in construction weak geometry scenarios.

The application discloses a flexible connection telescopic pin mechanism, and belongs to the technical field of telescopic pin mechanisms. The telescopic pin mechanism comprises a cylinder, a fixed sleeve fixedly installed on a cylinder cover of the cylinder and covering the outside of a piston rod of the cylinder, a guide sleeve fixedly arranged at the top of the fixed sleeve, a telescopic pin body slidably connected to the guide sleeve, and an elastic compensation assembly arranged between the telescopic pin body and the piston rod of the cylinder. The telescopic pin mechanism further comprises a locking structure arranged on the telescopic pin body and connected to the elastic compensation assembly. Through cooperation of the capsule, the through hole, the positioning bead and the inflation assembly, the telescopic pin mechanism can make the capsule expand and extrude the positioning bead after the telescopic pin body is telescopically extended to a position, so that the positioning bead is extended outward and tightly pressed against a counterpart workpiece, locking is realized, the connecting rigidity between the telescopic pin body and the workpiece is ensured, and therefore the stability and reliability of operation are improved.