70results about How to "Accurate reset" patented technology

The utility model belongs to the technical field of prostate expansion, and particularly relates to a urinary surgery clinical prostate expansion device which comprises an outer catheter, a guide rod arranged in the outer catheter, a groove formed in one end of the outer catheter and an expansion assembly movably connected to the guide rod. The dilation assembly comprises a sleeve connected to the outer wall of the guide rod in a sliding mode, an air bag arranged on the periphery of the sleeve in a sleeving mode and used for dilating the prostate, a pull rod arranged at the position, close to the interior of the outer catheter, of the sleeve and an assembly arranged at the end, away from the air bag, of the outer catheter and used for limiting the pull rod. Through the arrangement of the expansion assembly, not only can the prostate be expanded, but also the air bag can be retracted into the outer catheter when the expansion equipment is placed and drawn out, so that the urethra is prevented from being damaged in the process of entering and exiting the urethra, and meanwhile, the air bag can be accurately reset when the air bag is used.

The invention relates to an OHT trolley with a side edge clamping function, and belongs to the technical field of battery production, the OHT trolley comprises a trolley body, a driving assembly is arranged at the top of the trolley body, the driving assembly is used for hanging the trolley body on an air track and driving the trolley body to move along the air track, a lifting assembly is arranged in the trolley body, and the lifting assembly is connected with a lifting seat; the lifting assembly controls the lifting base to ascend and descend, the lifting base is provided with a grabbing groove, the size of the grabbing groove is larger than that of a tray, the grabbing groove is formed in the width direction of the aerial track in a penetrating mode, and two clamping jaws are arranged in the lifting base, located in the grabbing groove and arranged in the length direction of the aerial track. Transverse supporting plates are arranged at the bottoms of the opposite sides of the two clamping jaws correspondingly, and a clamping and holding assembly used for controlling the two clamping jaws to move relatively is arranged on the lifting base. The device has the effects that the multiple trays can be stably grabbed, and air transportation can be conducted.

The invention provides a quantitative detection reagent filling device for a clinical laboratory of a hospital, and relates to the technical field of medical treatment, the quantitative detection reagent filling device comprises a filling machine, a discharging bin is arranged below the filling machine, a first motor is fixedly installed in the filling machine, a curved frame is installed on the side edge of the first motor, the cross section of the curved frame is in an inverted U shape, and the first motor and the curved frame are fixedly installed on the lower portion of the discharging bin. A material storage pipe is fixedly installed in the filling machine, the lower section of the material storage pipe is located in the discharging bin, the other section of the curved frame is located in the material storage pipe, a rubber plug is driven to be inserted into the material storage pipe through a connecting rod, and meanwhile a fifth magnetic block is driven to be magnetically attracted to the lower end of the material storage pipe. Therefore, the reagent in the material storage pipe can slowly fall, pollution and damage caused by splashing of the reagent in the material storage pipe during falling due to the fact that the material storage pipe is far away from a reagent bottle are effectively avoided, the stability of the reagent during falling is greatly improved, and the sanitation degree of a material taking link is guaranteed.

The invention relates to the technical field of power output equipment, in particular to an intelligent temperature control type ring main unit anti-condensation protection device. Comprising a cabinet body protection shell, the peripheral side walls of the cabinet body protection shell are each provided with a set of adjusting units, each adjusting unit comprises an adjusting plate, and an inner ventilation part is communicated between each adjusting plate and a cavity of the cabinet body protection shell; and a plurality of groups of anti-condensation units are rotationally connected to the adjusting plate. According to the intelligent temperature and humidity control device, the condensation prevention effect is achieved while heat dissipation is achieved through the two modes, the device can be automatically adjusted according to the actual environment temperature and humidity, the intelligent temperature and humidity control function is achieved, the condensation prevention effect and the automation degree of the device are improved, and energy consumption is reduced.

The invention provides a minimally invasive reduction and aiming device for acromioclavicular joint dislocation. The minimally invasive reduction and aiming device for acromioclavicular joint dislocation comprises an operating arm, and a drill guide frame is arranged on the inner side of the operating arm; the aiming assembly is arranged at one end of the operating arm, the aiming assembly comprises a placing groove, a fixing groove, an adjusting block and a sleeve, the placing groove is formed in the operating arm, the fixing groove is formed in the operating arm, the adjusting block is arranged on the outer side of the operating arm, and the sleeve is arranged on the inner side of the adjusting block; the reset assembly is arranged on one side of the operation arm, and the reset assembly comprises a supporting box, a fixing cylinder, a reset plate and reset pliers. The minimally invasive resetting and aiming device for acromioclavicular dislocation has the advantages that the coracoid part is conveniently supported and hooked, positioning aiming is promoted, the accuracy of positioning needle threading is improved, meanwhile, adjustment is conveniently carried out according to different requirements, and resetting force application is conveniently carried out.

The invention discloses a position searching device for gear separation and resetting of ink printing equipment, which comprises a plate roller gear and a bottom roller gear which can be meshed or separated, and further comprises an adjusting transmission assembly, a positioning assembly and a positioning assembly, the adjusting driving unit is used for being in clutch transmission fit with the transmission assembly; the adjusting transmission assembly comprises a driven gear which is in coaxial transmission fit with the printing roller gear, a driving gear which is in clutch transmission with the adjusting driving unit, and a printing roller original point electric eye which is used for monitoring and recording the initial direction of the driving gear. The driven gear is in transmission fit with the driving gear, so that the driven gear, the driving gear and the printing roller gear act synchronously; and when the printing roller gear needs to be reset and switched from the separation state to the meshing state, the driving gear is driven by the adjusting driving unit to rotate and reset to the initial direction recorded by the printing roller original point electric eye in advance.

The invention discloses a lead screw straightener, and relates to the technical field of lead screw straightening, the lead screw straightener comprises a frame body, the frame body comprises a bottom plate and two supporting frames, the top of the bottom plate is connected with a supporting plate, one side of the supporting plate is provided with a plurality of laser displacement sensors, a blanking plate is connected between the two supporting frames, and the lead screw straightener further comprises a driving mechanism assembled on one side of the supporting frames, in the automatic feeding link, through the contact effect of a poke rod and a contact block and in combination with linkage of a sliding plate and a compression spring, batched accurate feeding and rapid resetting of the ball screws are achieved, the whole feeding and clamping process is efficient and smooth, after straightening is completed, a connecting cylinder continues to rotate, and the automatic feeding and clamping device is used for automatically feeding the ball screws. A telescopic column and an abutting column are used for driving a first arc-shaped plate and a second arc-shaped plate to automatically open and release a ball screw, in the process, accurate reset of the first arc-shaped plate and the second arc-shaped plate is ensured through an energy storage and release mechanism of an arc-shaped spring, and preparation is made for next-round machining.

The utility model discloses an aluminum profile feeding, overturning and pressing device, and relates to the technical field of aluminum profile processing, the aluminum profile feeding, overturning and pressing device comprises a profile overturning device, the profile overturning device comprises an overturning supporting seat, a sliding guide rail is arranged on the overturning supporting seat, and an overturning fixing seat is slidably connected in the sliding guide rail; the overturning fixing base is connected with an overturning plate through an overturning shaft, and the overturning plate is rotationally connected with the overturning fixing base. A track shaft parallel to the turnover shaft is arranged on the turnover plate, one end of the track shaft is fixedly connected with the turnover plate, and a bearing is arranged at the other end of the track shaft; a supporting plate with variable height is arranged on one side of the turnover supporting seat; the bearing is in contact with the top surface of the supporting plate and can roll along the top surface of the supporting plate; through the cooperation of the overturning fixing base, the overturning plate, the sliding guide rail and the supporting plate, the aluminum profile can be automatically overturned by 90 degrees from a horizontal station to a vertical station through one-time movement and is positioned and pressed, actions are integrated, the equipment structure is effectively simplified, and the production efficiency is improved.

The invention belongs to the technical field of hip joint surgery dislocation approach, and particularly relates to a hip joint surgery dislocation approach osteotomy and screw placement guide assembly and a use method. The guide assembly comprises an osteotomy auxiliary plate and a screw guide plate. The osteotomy auxiliary plate is arranged on the outer side of the exposed greater trochanter femur of the patient and assists the external cutting device in conducting osteotomy operation on the greater trochanter of the femur of the patient. The screw guide plate is arranged on the outer side of greater trochanter of the thighbone of a patient after osteotomy is completed and used for positioning and guiding the at least two reset fastening screws. An osteotomy and screw placement guide assembly is designed in a conventional hip joint surgery dislocation approach operation, an osteotomy auxiliary plate and a screw guide plate are designed, and the osteotomy auxiliary plate comprises an osteotomy guide mechanism at a proper position and is used for accurately positioning the osteotomy position of a greater trochanter osteotomy block of a patient; the problem that in the prior art, when osteotomy is conducted on a patient completely depending on doctor experience, an osteotomy block is likely to be too large or too small or the osteotomy direction is dislocated is solved.

The invention discloses an air pressure type pin inserting and pulling method. The method comprises the following specific operation steps that (1) the length of a pin shaft of a positioning pin is determined according to the designed depth of a pin hole; the depth of the pin hole-the length of the pin shaft is greater than or equal to 5mm; 2) processing a positioning pin; (3) when the positioning pin is installed, cleaning the outer circle of the pin shaft and the inner wall of the pin hole by using cleaning cloth, and inserting the pin shaft into the pin hole and tightly attaching the pin shaft to the hole wall; a high-pressure connector is installed on the pin shaft, air in a closed space defined by the pin shaft and the pin hole is extracted, and under the action of atmospheric high pressure, the positioning pin is pushed to extrude the inner wall of the pin hole, and fixing and positioning are achieved; when the positioning pin is taken out, a high-pressure joint is mounted on the pin shaft; and high-pressure gas is injected into a closed space defined by the pin shaft and the pin hole, so that the positioning pin is extruded out of the pin hole. The method is convenient to operate; due to the fact that no mechanical impact force or vibration exists in the operation process, the parts are not prone to being damaged or damaged by the impact force or the vibration, and it can be guaranteed that all the installed parts are reset accurately.

The utility model discloses a kind of plastic bottle injection molding mouth excess material cutting equipment, it is related to plastic bottle processing equipment technical field.The utility model includes shell, cutting assembly is arranged in shell inner cavity, polishing assembly is arranged in cutting assembly side, cutting station is arranged in shell inner cavity bottom side, the cutting assembly includes lifting frame, lifting frame is connected with shell through-penetration, first inclined plane frame is fixedly connected in lifting frame one side top portion.The utility model is through the collaborative operation of electric push rod, cutting machine and motor, from excess material cutting to polishing linkage is realized, when plastic bottle blank is pushed into cutting station, electric push rod drives cutting machine to accurately remove injection molding mouth excess material, without manual intervention;After cutting is completed, spring drive polishing disc is automatically moved back, cooperate with the polishing disc polishing driven by motor, so that cutting position is quickly completed polishing processing, reduces process linkage time, significantly improves production efficiency.

The utility model relates to a vibration cutter which comprises a driving motor, a gear box assembly fixed below the driving motor and a cutter head assembly arranged below the gear box assembly. The tool bit assembly comprises a tool sleeve, a tool bit connecting piece arranged in the tool sleeve, a magnetic attraction block arranged in a groove of the tool bit connecting piece and a tool bit connected with the magnetic attraction block in a magnetic attraction mode, a positioning hole is formed in a blade clamp of the tool bit, a positioning rod capable of being inserted into the positioning hole is arranged in the groove, and the tool bit extends out of a tool edge at the front end of the tool sleeve. According to the vibration cutter, through the magnetic attraction type connecting technology, rapid installation and accurate positioning of the cutter head assembly are achieved, and the production efficiency and the cutting accuracy are improved. The magnetic connection between the magnetic block and the tool bit ensures the convenience of replacing the tool bit, and meanwhile, the design of the positioning hole and the positioning rod ensures the consistency and accuracy of installing the tool bit every time.

This utility model relates to the field of reset control circuits, and in particular to a dual MCU mutual reset control circuit. A dual MCU mutual reset control circuit includes a main MCU chip and a secondary MCU chip, and further includes a first reset unit and a second reset unit. The first reset unit includes a first resistor, a first diode, and a first capacitor. The power supply voltage is connected to one end of the first resistor and the negative terminal of the first diode; the other end of the first resistor is connected to the positive terminal of the first diode, one end of the first capacitor, and the RESET pin of the secondary MCU chip; the other end of the first capacitor is grounded. The first GPIO pin of the main MCU chip is connected to the RESET pin of the secondary MCU chip through a first control path. The advantages of this utility model are: it realizes heartbeat signal detection and reset trigger feedback control between the main MCU chip U2 and the secondary MCU chip U1.

The present invention discloses a three-dimensional parking garage, including a support frame, which includes four support columns and an upper frame assembly. The upper frame assembly is a rectangular frame structure. There are four support columns, which are all vertically arranged and distributed in a rectangular shape, and the upper frame assembly is fixedly arranged on the four support columns. The main points are: it also includes a bearing platform, a lifting mechanism, a lifting drive mechanism, a walking mechanism and a steering mechanism. The lifting mechanism is arranged on the support frame, and the lifting drive mechanism drives the lifting mechanism to move the bearing platform up and down. The steering mechanism is arranged on the support frame, and the walking mechanism is arranged on the support frame, the supporting frame is driven by the walking mechanism to move, and the steering mechanism controls the movement trajectory of the walking mechanism, so as to adjust the supporting frame to be perpendicular or parallel to the road.

This invention discloses a method and apparatus for suppressing multiples in marine towed cable seismic data. The method first acquires multi-azimuth towed cable seismic data, performs three-dimensional consistency processing to eliminate differences in excitation, reception, and sampling; constructs a pseudo-three-dimensional water layer multiple model based on the processed data, extracting models from each azimuth; suppresses shallow water multiples in each azimuth data using a subtraction method, obtaining data after multiple suppression and the removed multiples data; merges and matches multiples removed from different azimuths, extracting effective signals; finally, merges the data after multiple suppression and the effective signals to output high-quality demultiplexed seismic data. This invention solves the problems of incomplete suppression and signal loss in conventional methods through multi-azimuth collaborative modeling and effective signal re-addition, improving the signal-to-noise ratio of seismic data and the reliability of geological interpretation, and is suitable for seismic exploration in shallow marine environments.

The present invention relates to the technical field of clamping of machine tool parts, and specifically discloses a fixing device for processing a wind power bearing seat, comprising a base, a fixing seat and a rotating mechanism. A positioning block is lifted and lowered on the base, the fixing seat is rotatably matched with the base, the rotating mechanism drives the fixing seat to rotate, a supporting member, a positioning assembly and an adjusting assembly are arranged on the fixing seat, the positioning block is plug-in-matched with the supporting member, the positioning assembly comprises a positioning member and a driving member, the driving member drives the positioning member to slide relative to the fixing seat, the positioning member is used to adapt the end face opposite to the workpiece to the surface of the workpiece in an arc shape, the positioning member is movably abutted against the workpiece, at least two mounting ears are arranged on the workpiece, each mounting ear is symmetrical about the axial plane of the workpiece, the adjusting assembly comprises at least two groups of one-to-one corresponding driving structures and adjusting blocks, the number of adjusting blocks is consistent with the number of mounting ears, each adjusting block corresponds one-to-one to each mounting ear, and the fixing device provided by the present invention improves the accuracy of workpiece fixing.

The utility model provides an automatic reset rotating disc. The automatic reset rotating disc comprises a first rotating disc, a second rotating disc, a rotating assembly and a reset piece. The first turntable can rotate relative to the second turntable; the rotating assembly comprises a center shaft, an eccentric shaft and an eccentric rotating ring, the center shaft penetrates through the centers of the first rotating disc and the second rotating disc, the center shaft is sleeved with the eccentric shaft, and the center of the eccentric shaft does not coincide with the center of the center shaft; a pull pin is arranged on the eccentric rotating ring, a stroke hole extending in the radial direction is formed in the first rotating disc, and the pull pin penetrates through the stroke hole and extends to the position above the first rotating disc. The pull pin can move in the stroke hole in the length direction of the stroke hole. When the pull pin is located at the position closest to or farthest from the center shaft, the first rotating disc is in an initial state. Therefore, the rotating turntable can be accurately reset to the initial position.

The application discloses a kind of adhesive tape box sealing device, belong to adhesive tape box sealing equipment technical field.It includes sealing frame, adhesive tape support, cutting tool, adhesive tape head folding mechanism and fixed piece turnover mechanism, adhesive tape head folding mechanism includes folding pressing frame, adhesive tape head fixing part and pressing frame reset mechanism, the middle part of folding pressing frame is hingedly arranged on sealing frame, one end of folding pressing frame is pressing end, the other end is driving end, and adhesive tape pressing mechanism is arranged on driving end;Adhesive tape head fixing part is used to fix adhesive tape head, and adhesive tape head fixing part is rotatably arranged on sealing frame by connecting rod, under the action of rotating drive mechanism and fixed piece turnover mechanism, adhesive tape head fixing part can carry adhesive tape head and be turned over and adhered to the adhesive tape in the direction away from cutting tool.The application has simple structure, can meet the needs of subsequent unpacking on the basis of meeting adhesive tape sealing, improves the unpacking efficiency and safety of packaging box.

The invention discloses an elastic wire mechanism and an anti-shake lens. The filament bouncing mechanism comprises a three-dimensional elastic piece and an AF elastic piece. The AF elastic sheet comprises a carrier connecting part used for being connected with a carrier and a support connecting part used for being connected with a support. An AF main elastic wire used for resetting a carrier AF is arranged between the carrier connecting part and the support connecting part, and the AF main elastic wire comprises a functional section and a first avoiding section used for avoiding an AF dispensing groove in the carrier. The three-dimensional elastic sheet is integrally formed by etching the same base material of the elastic sheet body, the AF elastic wire and the elastic blocking sheet, a splicing link is avoided, the structural strength is high, the mechanical property is unified, and a carrier AF auxiliary reset function and a support OIS core reset function are integrated. And the AF main elastic wire is provided with a first avoiding section for pertinently avoiding a carrier AF dispensing groove, so that the normal operation of dispensing operation is ensured.

The utility model relates to medical instrument technical field discloses an anatomical type metal bone fracture plate, including first connecting plate, the first connecting plate right side fixedly connected with first branch, the first branch right side fixedly connected with second branch, the first connecting plate top fixedly connected with third branch, the first connecting plate left side fixedly connected with fourth branch, the first connecting plate left side bottom fixedly connected with fifth branch. In the utility model, through different types of calcaneal bone plate, it has unique shape and hole position distribution, can accurately fit different parts of calcaneus and different fracture types, through multiple round holes and screw cooperation, fix the fracture end from different directions, enhance stability, in the fracture involving the calcaneal articular surface, can help the recovery articular surface level, these bone plates can evenly disperse stress, reduce local stress concentration, reduce the risk of complication.

This invention discloses a crankshaft-type dual-point multi-link press, relating to the field of press technology. It includes a support table, table body, crankshaft assembly, trolley assembly, and track. The crankshaft assembly includes a motor, transmission gears, a large gear, and a crank-connecting rod mechanism to achieve a "slow down, fast up" stamping motion. The trolley assembly includes a geared motor, drive wheels, and track cleaning blades to achieve smooth transfer of the entire machine and track cleaning. Anti-eccentric load devices are provided on both sides of the crankshaft assembly. These devices include a connecting drive assembly, a guiding and stabilizing assembly, and a clamping support assembly. This invention uses the sliding block to trigger the connecting drive assembly when it descends, which, in conjunction with the multi-link, achieves eccentric load compensation. The guiding and stabilizing assembly provides high-precision vertical guidance, and the clamping support assembly dynamically clamps the guiding structure during the stamping process. The entire machine has a compact structure, stable operation, high stamping accuracy, and strong anti-eccentric load capability.

This invention relates to a universal contour detection device and assembly method for assisted robotic optical processing, belonging to the field of advanced optical manufacturing technology, and solves the technical problem of the lack of an in-situ high-precision detection device in the optical processing of large-aperture mirrors by robotic arms in the prior art. The contour detection device includes: a workpiece turntable and a swing-arm air-floating turntable; a workpiece table is provided on the upper surface of the workpiece turntable; the workpiece to be measured is placed on the workpiece table; the upper end of the swing-arm air-floating turntable is connected to the end effector of the robotic arm via a quick-change detection fixture; the lower end of the swing-arm air-floating turntable is connected to the arm via an arm fixture; a probe is provided at one end of the arm, which is located near the upper surface of the workpiece to be measured. In the contour detection device of this invention, the end effector of the robotic arm remains stationary during the measurement of the optical element's surface shape; compared to the measurement mode of a moving probe at the end effector, the accuracy and stability of the robotic arm in the stationary state are better.

The invention relates to the field of integrated circuit manufacturing, in particular to a circuit board lamination positioning and pressing device based on conical surface guiding, which comprises a laminating table, a hydraulic rod is arranged on the upper end surface of the laminating table, a hydraulic cylinder is arranged at the upper end of the hydraulic rod, an upper pressing plate is fixedly connected to the lower end of the hydraulic rod, and a laminating platform is arranged in the laminating table. A lower pressing plate is arranged on the upper end face of the laminating platform, the horizontal projection of the lower pressing plate is completely located in the laminating range of the upper pressing plate, a hydraulic hole is formed in the upper end face of the lower pressing plate and arranged in the circumferential direction of the lower pressing plate, a hydraulic cavity is formed in the lower end in the hydraulic hole, a pressing block is arranged in the hydraulic hole, a through hole is formed in the center of the pressing block, and a conical face column is arranged in the through hole. The upper pressing plate is provided with a locking hole, the locking hole is matched with the conical surface column, the positioning effect is continuously enhanced in the whole pressing process, the layer deviation problem of circuit board lamination pressing is fundamentally reduced, and the alignment precision and the pressing stability of the upper pressing plate and the lower pressing plate are greatly improved.

This invention relates to the field of cutting equipment technology and discloses a cutting device for the production and processing of stainless steel round bars. The device includes a base and a shearing machine body fixedly installed at the top center of the base. The shearing machine body includes a support base, a fine-tuning component is disposed between the support base and the base, and a positioning component is disposed on one side of the top of the base. The fine-tuning component is driven by a threaded screw and a screw sleeve, and a gear and nut structure achieves stable locking after adjustment. A scale structure is used to achieve precise adjustment of the cutting position. In the positioning component, the round bar drives a rubber wheel to rotate, which in turn drives a pointer to rotate via a bevel gear, completing length measurement in conjunction with a scale. Through the coordinated functions of the two sets of components, the device achieves round bar circumferential positioning, precise measurement without markings, and rapid fixed-length cutting. Its compact structure is suitable for portable applications, and the purely mechanical transmission provides strong anti-interference capabilities, effectively avoiding round bar skew and measurement failure, significantly improving cutting accuracy and operational efficiency.

The invention relates to the technical field of advertisement display equipment, in particular to an advertisement display screen with an anti-collision function, which comprises a bottom frame, a protective frame, anti-collision glass, a display screen body, a guide rod, a sliding frame, a longitudinal damping spring, a sliding block and a rotating frame, guide rods are fixedly connected to the two sides of the interior of the bottom frame, a sliding frame is slidably connected between the two guide rods, a sliding block is slidably connected to the sliding frame, a rotating frame is rotatably connected to the sliding block, the rotating frame extends to the top of the bottom frame, a protective frame is connected to the rotating frame, and a display screen body is installed in the protective frame. The longitudinal damping springs and the transverse damping springs are used for buffering front-back and transverse impact force, in cooperation with guiding steering of the rhombic blocks and the avoiding rails, azimuth avoiding during oblique collision can be achieved, the display screen body is prevented from being damaged due to direct stress, structural matching is smooth, resetting is accurate, and stable operation of the device is guaranteed.

The utility model discloses a sample storage cabinet which comprises a multi-stroke mechanical arm, a longitudinal sliding assembly, a lifting assembly, a first cabinet body, a second cabinet body and a discharging device, the multi-stroke mechanical arm comprises a fixing plate, a power module, a transition plate, a double amplification module, a terminal plate and a mechanical arm, and the transition plate is arranged on the fixing plate in a sliding mode; a first gear is rotationally arranged at the bottom end of the transition plate, the double amplification module comprises a first rack, a second rack, a movable frame, a synchronous belt and a synchronous wheel, the movable frame is arranged on the transition plate in a sliding mode, the first rack is arranged on the fixed plate, the second rack is arranged on the movable frame, and the first gear is engaged with the first rack and the second rack; the two synchronous wheels are rotationally arranged on the movable frame, the terminal plate is arranged on the movable frame in a sliding mode, one side of the synchronous belt is fixed to the transition plate, and the other side of the synchronous belt is fixed to the terminal plate. The multi-stroke manipulator has the advantages that the multi-stroke manipulator occupies one time of space and can cover three times of space.

The present invention provides a gas-liquid buffer, which belongs to the technical field of buffer equipment, and comprises an outer cylinder body and an inner cylinder body; one end of the outer cylinder body is an open end, and a guide rod is arranged inside, and a guide circle is fixed to the end of the guide rod close to the open end of the outer cylinder body; one end of the inner cylinder body is inserted into the outer cylinder body from the open end of the outer cylinder body, and the other end is located outside the outer cylinder body; a guide plate is fixed to the insertion end of the inner cylinder body, and the guide plate is provided with a guide hole; the inner diameter of the guide hole is larger than the outer diameter of the guide rod and smaller than the outer diameter of the guide platform; the inner cylinder body is sleeved on the guide platform and the guide rod through the guide plate, and an isolating piston that moves along its axial direction is also arranged in the inner cylinder body. The gas-liquid buffer provided by the present invention can avoid the situation that the traditional buffer is prone to being unable to be completely reset and misaligned, and has the advantages of large energy absorption, long service life, simple structure and automatic and rapid reset.

The utility model discloses a front anti -collision beam traction ring mistake proof structure, including base, base is as the main support part of mistake proof structure for supporting other parts and will mistake proof structure fixed on the welding device, the recess of placing is seted up with the annular part of traction ring and is pasted together in the top surface of base, the edge of the top of base is seted up in the bearing cooperation surface, after placing traction ring in the recess of placing and pasting together, the special shape of traction ring connecting part and bearing cooperation surface are pasted together, thereby make the placement of traction ring have specific directionality, the positioning pin is fixed in the inside of base, and the traction ring is sleeved on the outside of positioning pin, is used for positioning traction ring, the press bar is worn in the inside of the positioning seat, and is adjacent positioning pin, and the bottom of press bar is connected with T shaped block through connecting rod, when traction ring presses down press bar, T shaped block can be detected by proximity switch.

This utility model discloses a pump head designed to improve the sealing performance of a piston. It includes a body with a chamber, one end of which is connected to a liquid inlet tube communicating with the chamber. A piston and a locking cap are located within the chamber. The locking cap is positioned on the side of the piston furthest from the liquid inlet tube, and a hollow first pump rod passes through it. The piston has a first lip and a first annular protrusion at its end near the locking cap, and a second lip at its end furthest from the locking cap. The first pump rod is fitted onto the first annular protrusion. Both the first and second lips contact the inner wall of the chamber to achieve a seal, forming a first annular groove between the first lip and the first annular protrusion. The outer wall of the first pump rod has a first annular flange located within the chamber, between the piston and the locking cap. A first spring is fitted onto the first pump rod, with one end contacting the first annular flange and the other end embedded in the first annular groove. This invention belongs to the technical field of spray equipment.