131results about How to "Realize the locking function" patented technology

The invention discloses a lifting and transferring tool for an underwater oil pipe hanger and a hole protection device, and relates to the technical field of underwater Christmas trees, the lifting and transferring tool comprises an outer body, and a plurality of lifting pins are arranged on the side wall of the outer body in the circumferential direction; the inner body is slidably arranged in the outer body and used for enabling the outer end of the lifting pin to extend out of the side wall of the outer body; the bottom of the hanging ring penetrates through the top of the outer body and then is connected with the inner body. A locking piece is arranged at the top of the outer body and used for controlling the height of the inner body in the outer body. According to the lifting and transferring tool for the underwater oil pipe hanger and the hole protection device, when the oil pipe hanger and the hole protection device are lifted and transferred, the locking or unlocking function is achieved through the lifting pin, locking between the outer body and the inner body is achieved through the operation screw, unlocking in the lifting and transferring process is prevented, and the lifting and transferring efficiency is improved. Therefore, the double-locking function is achieved, and the reliability in the lifting and transferring process is enhanced.

The utility model relates to a handle for a laparoscopic electrocoagulation surgical instrument, and belongs to the field of medical instruments. The locking device comprises a front handle and a rear handle, the rear handle is rotatably mounted on the front handle, the locking device is structurally characterized by further comprising a positioning mechanism and a locking mechanism, the locking mechanism is mounted on the front handle and matched with the positioning mechanism, the rear handle and the front handle are positioned through the positioning mechanism, the positioning mechanism comprises a positioning toothed plate, a positioning clamping plate, a positioning spring and a spring seat, and the positioning toothed plate is matched with the positioning clamping plate. The positioning toothed plate is fixed to the rear handle, the positioning clamping plate is rotationally installed on the front handle, the spring seat is fixed to the front handle, the two ends of the positioning spring abut against the spring seat and the positioning clamping plate respectively, the positioning clamping plate is matched with the positioning toothed plate, the locking mechanism comprises a locking wrench and a locking clamping block, and the locking wrench is rotationally installed on the front handle. The locking clamping block is installed on the front handle in a sliding mode, the locking clamping block is matched with the locking wrench, and the locking wrench is matched with the positioning clamping plate.

The utility model discloses a kind of lifting rod structure and shower, the lifting function of bar can be realized, and product can be designed thinner. Among them, lifting rod structure includes wall seat, bar, limiting piece, elastic member and operating part;The wall seat is pre-fixed on mounting surface;The bar is along with the wall seat sliding fit along up-down direction;The limiting piece is along with the bar sliding fit in left-right direction, for when realizing the locking of up-down direction when abutting the wall seat;The elastic member is arranged in the bar and acts on the limiting piece, to make the limiting piece abut the wall seat;The operating part is parallelly arranged with the movement direction of the limiting piece, and telescopic cooperation is in the side of the bar;The operating part and the limiting piece linkage to realize user through the operating part drive the limiting piece and the wall seat separate.

The utility model relates to the technical field of energy storage, in particular to a simple lock, a bottom support, a battery box and a battery changing system. The simple lock comprises a lock hole assembly and a lock body assembly. The lock body assembly comprises a supporting unit, a driving unit and two spring bolt units. The driving unit comprises a driving rod, a first left connecting rod, a second left connecting rod and a spring bolt unit which are hinged in sequence; and the driving rod, the first right connecting rod, the second right connecting rod and the other spring bolt unit are hinged in sequence. The driving rod drives the spring bolt unit to rotate through the connecting rod structure. When the simple lock is in a locking state, the spring bolt unit penetrates through the lock hole assembly, and the spring bolt unit abuts against the lock hole assembly to limit the lock hole assembly to move away from the spring bolt unit. The bottom support comprises a lock body assembly or a lock hole assembly. The battery box comprises a lock body assembly or a lock hole assembly. The battery replacing system comprises a bottom support and a battery box. Therefore, the problems of complex structure and high energy consumption of the traditional battery replacement locking device are solved.

The utility model belongs to the field of locking devices, and particularly relates to a locking device for an assembly type building, which comprises a mounting plate, a movable locking mechanism and a locking reinforcing component, the movable locking mechanism is provided with a servo motor, one side of the servo motor is movably provided with a transmission shaft, the periphery of the transmission shaft is fixedly connected with a first transmission gear, the periphery of the first transmission gear is in transmission connection with a transmission belt, and the other side of the transmission belt is in transmission connection with a second transmission gear; a threaded shaft is driven by a servo motor to rotate in different directions, a movable block can linearly move under the cooperation of the threaded shaft and a first threaded groove, a locking block synchronously moves when the movable block linearly moves, and a gap between the locking block and a third threaded groove is adjusted; according to the building material locking device, the function of locking different building materials is achieved, the problem that the building materials of different specifications cannot be matched is solved, and the adaptability of locking work is improved.

According to the folding type multifunctional baby stroller, a locking mechanism is arranged at the joint of an upper front beam, an upper rear beam and a stand column of a side frame, a main body frame can be kept in an unfolded state, when a stroller body is subjected to reverse acting force opposite to thrust in the pushing process, the main body frame cannot be folded abnormally, and the structure is stable. Moreover, in the locking state, the main body frame can be converted from the unfolded state to the folded state only by pulling the switch plate upwards and then lifting the locking mechanism upwards, and on the contrary, the main body frame can be converted from the folded state to the unfolded state by pulling the switch plate upwards and then pressing the locking mechanism downwards. And after the unfolding state and the folding state are switched, additional operation is not needed, and the locking mechanism can automatically enter the locking state, so that the folding operation and the unfolding operation of the main body frame are simple.

The utility model is applicable to the technical field of road sweeper parts, and provides a quick-dismounting structure for a vehicle spray rod, which comprises a bottom spray rod connected with a quick-change connector, a plurality of high-pressure spray heads arranged on the outer side of the bottom spray rod, a spray rod quick-dismounting fixing mechanism structure sleeved on the bottom spray rod, and an upper clamping block and a lower clamping block hinged with each other, the upper clamping block and the lower clamping block are locked through a locking assembly, the locking assembly comprises a first locking rod, a second locking rod, a fastening rod and a connecting rotating rod, the connecting rotating rod is rotationally connected with the upper clamping block, and a fastening groove is formed in one side of the lower clamping block; the distance between a connecting rotating rod and a fastening rod can be adjusted only by adjusting upper locking nuts on a first locking rod and a second locking rod, so that the fastening rod can be upwards buckled into a locking groove or downwards separated from the locking groove, and an upper clamping block and a lower clamping block can quickly clamp and disassemble a bottom spraying rod in this way.

The utility model discloses a safety belt furling and locking device, which relates to the technical field of safety belt locking and comprises a furling device outer box and a controller, a ratchet wheel is arranged outside the furling device outer box, and a damping component is arranged below the surface of the furling device outer box. And the damping assembly comprises sliding rod seats, sliding rods, sliding blocks, springs, connecting rods, mounting seats and damping shock absorbers, the sliding rods are connected between the sliding rod seats, the sliding blocks are arranged outside the sliding rods in a sliding mode, the sliding rods are sleeved with the springs, and the middle portions of the sliding blocks are connected with the connecting rods through rotating shafts. According to the safety belt furling and locking device, when the mounting base bears impact force and vibrates, the vibration changes the angle of the connecting rod on the sliding block, so that the sliding block extrudes the spring, the mounting base extrudes the damping shock absorber, and the influence of the vibration effect on the mounting base can be fully weakened; and the defect that the inclination angle sensor and the acceleration sensor are low in sensitivity when encountering large vibration is overcome.

The sample detection device comprises a detection box, a paper placing plate, a power source assembly and a detection assembly are arranged in the detection box, the paper placing plate is provided with a detection opening used for placing the cosmetic test paper, and the detection assembly is used for detecting the cosmetic test paper in the detection opening. A locking rod is slidably connected into the detection box, one side of the paper placing plate is slidably connected with the locking rod through a driving plate, a first elastic piece arranged outside the locking rod in a sleeving mode is arranged between the driving plate and the detection box, a pop-up button rotationally connected into the detection box is arranged on the outer side of the end of the paper placing plate, and a pressing part is formed at one end of the pop-up button. And the other end of the pop-up button is buckled and connected with the paper placing plate. The invention has the characteristics of good detection and storage stability and long service life.

The utility model discloses a quick connecting mechanism for a barrel opening device of a rotating pipe weapon, which is simple, high in reliability and good in manufacturability and economical efficiency. A quick connecting mechanism of a barrel opening device of a rotating pipe weapon is characterized in that a gun barrel of the rotating pipe weapon is sleeved with a front hoop, the quick connecting mechanism comprises a threaded assembly cylinder, the threaded assembly cylinder is sleeved on the front hoop, an inner hole of the threaded assembly cylinder is a stepped hole, the stepped surface of the inner hole of the threaded assembly cylinder is axially positioned on the front hoop, and the large-diameter section of the inner hole of the threaded assembly cylinder comprises an unthreaded hole section and a threaded hole section. The unthreaded hole section is in clearance fit with the peripheral face of the front hoop, and the threaded hole section is fixedly connected with the bore opening device in a threaded mode.

The invention discloses a radiation protection shielding lead plate door, which belongs to the field of radiation protection and comprises a driving mechanism, a driven mechanism and an oil box. The driven mechanism comprises a rack which is arranged along the top end of the door plate and connected with the door plate. The driving mechanism comprises a gear pipe; the gear pipe is located above the rack and can move downwards to be meshed with the rack. When the gear pipe is meshed with the rack, the gear pipe rotates to drive the door plate to move through the rack; the oil box is filled with lubricating oil and is positioned above the rack; the gear pipe is arranged on one side of the oil box and can move towards the oil box; a piston plate matched with the oil box is arranged in the oil box, and a piston connecting rod is fixed in the gear pipe and extends into the oil box to be fixed to the piston plate. The oil box is provided with an oil outlet valve; the gear pipe moves towards the oil box, the piston connecting rod moves along with the gear pipe to push the piston plate, and the piston plate extrudes lubricating oil out of the oil outlet valve to fall on the rack. The gear structure can be automatically lubricated, and meanwhile the functions of manual opening and closing, electric opening and closing and the like can be achieved.

The invention relates to the technical field of railway vehicles, and discloses an automatic opening and closing mechanism for a railway vehicle and a control method thereof.The automatic opening and closing mechanism comprises a locking mechanism, a supporting frame, an upper supporting mechanism and a cabin door assembly; a left cabin door and a right cabin door of the cabin door assembly are connected to a supporting frame of the railway vehicle through upper supporting mechanisms and further connected with locking mechanisms symmetrically arranged on the supporting frame, and the locking mechanisms are used for locking the left cabin door and the right cabin door when the left cabin door and the right cabin door are opened and closed. By means of the opening and closing mechanism which is opened left and right, the cabin door can be opened or closed according to the actual running situation of the railway vehicle, the two working states of opening or closing of the cabin door are provided, and different working requirements of normal running or reconnection running of the railway vehicle are met; airflow impact force generated when a railway vehicle runs at a high speed acts on the rocker arm through the cabin doors, the sliding block can press the sliding block backstop more tightly, automatic locking of the mechanism is achieved, and it can be guaranteed that the left cabin door and the right cabin door are locked consistently.

The invention relates to a servo hydraulic cylinder control oil way locking method. The invention relates to the technical field of hydraulic control. A first electromagnetic directional valve, a second electromagnetic directional valve, a third electromagnetic directional valve and a fourth electromagnetic directional valve are set to be in a power-off state; preparing a secondary pilot valve and a servo valve; controlling high-pressure supply oil to start to enter a pipeline; after the system runs, the system is controlled to enter a stop state; when the pressure of high-pressure oil in the band-type brake mechanism, namely the pressure value of the pressure sensor is reduced to be below the band-type brake pressure threshold value, the band-type brake mechanism can hold the hydraulic cylinder tightly, so that the system is stable; at the moment, the system recovers to the initial state. According to the hydraulic locking device, the problem of internal force fighting caused by improper operation of a mechanical locking device is solved, the phenomenon of system state deviation caused by hydraulic leakage when a hydraulic locking device is purely adopted is avoided, and it is guaranteed that the system locking function is effectively and safely achieved.

This utility model provides a locking mechanism for decorative covers at the ends of handrails in subway cars. It relates to the technical field of subway car accessories. The locking mechanism includes internally threaded sleeves threaded onto both ends of the handrail. A decorative upper cover is fixedly installed at the far ends of the two internally threaded sleeves. Two decorative lower covers are slidably mounted on the handrail, with their far ends extending into the two decorative upper covers. The outer ring walls of the two decorative lower covers contact the inner ring walls of the two decorative upper covers. Limiting grooves are formed on the outer ring walls of both internally threaded sleeves. Four transverse support rods arranged in a circular array are provided inside each of the two decorative lower covers. This utility model prevents the decorative covers from detaching from the handrail, ensuring a secure installation.

The utility model discloses a power supply assembly and an atomization device, the power supply assembly comprises a shell, a cover body and a power supply unit, the shell is internally provided with a containing cavity, one end of the shell is provided with a containing opening communicating with the containing cavity, and the shell is provided with at least one locking position; the cover body is mounted in the accommodating opening, and at least one locking part is arranged on the cover body; the power supply unit is mounted in the accommodating cavity; the cover body can rotate relative to the shell, and the at least one locking part is detachably connected with the at least one locking position so that the cover body can close or open the containing opening. According to the power supply assembly, the locking and unlocking functions of the cover body and the shell can be realized through the change of the relative position of the locking position and the locking part, the operation of a user is facilitated, and meanwhile, the power supply unit is quickly recycled, the product cost is reduced, and the pollution to the environment is reduced.

The utility model discloses a glue film turnover storage rack which comprises a base and side plates arranged on the left side and the right side of the base, two connecting frames are arranged on the left side and the right side of the base respectively, and the side plates on the left side and the right side are arranged on the base through the two connecting frames on the corresponding sides respectively. The side plates can be folded outwards on the base through the corresponding connecting frames, and meanwhile the side plates can be folded towards the interior of the base through the connecting frames to be locked and fixed. Each connecting frame is provided with a detachable locking hook, the base is provided with a locking plate corresponding to the locking hook, and the side plates can be folded outwards to be locked and fixed through matching of the locking hooks and the locking plates. The side plate opening and closing effect is achieved, and the purposes that the storage rack is easy to unload and occupied space is reduced are achieved; the structure is simple, and the jamming problem can be effectively avoided; the connection stability between the side plate and the base is improved after the side plate is loaded; and the side plates can be quickly folded and unfolded.

The utility model discloses a kind of power line winding mechanism and line winder of bamboo cutting scissors, the power line winding mechanism of bamboo cutting scissors includes mounting bracket, winding assembly, wire arrangement component and locking assembly installed on mounting bracket;Winding assembly and winding assembly are sequentially installed on mounting bracket, winding assembly includes winding limiting piece;Locking assembly controls the rotation state of winding limiting piece by mechanical limit, to realize the locking state and the unlocking state of switching winding mechanism.The utility model realizes efficient power line management by modular design: winding assembly orderly receives and releases wire, wire arrangement component prevents winding, locking assembly accurately controls the rotation state of winding assembly;In locking state, guarantee transportation stability, when unlocking, quick collection and release improve efficiency.The utility model compact structure is light and handy, adapts complex terrain, prolongs power line coverage range, reduces equipment carrying frequency, significantly improves the applicability and practicality of electric bamboo cutting scissors equipment in forestry operation.

The utility model relates to hardware tool technical field more specifically, it is a kind of tool with auxiliary locking structure, including the first function part and second function part of each other hinged, still including first handle and second handle, first handle is hinged with first function part, second handle is hinged with second function part;Still including locking structure, locking structure is installed in first handle end portion and can be with second handle end portion abut or joint, and / or locking structure is installed in second handle end portion and can be with first handle end portion abut or joint.The utility model is to overcome the insufficient that multifunctional tool in prior art cannot be locked in handle closed state, provide a kind of tool with auxiliary locking structure, so that handle is not easy to open when in closed state, reduce handle virtual position, avoid handle to pop open and lead to part to expose handle surface, to eliminate security risk.

The utility model relates to the technical field of hydraulic pressure, in particular to a hydraulic motor locking oil cylinder hydraulic circuit which comprises a hydraulic control valve, a hydraulic motor, a first oil cylinder and a second oil cylinder, the hydraulic control valve is provided with a connector A1 and a connector B1, the connector A1 is communicated with a rodless cavity of the first oil cylinder, the connector B1 is communicated with a rod cavity of the first oil cylinder, and the connector B1 is communicated with a rod cavity of the second oil cylinder. The hydraulic control valve is provided with a connector A2 and a connector B2, the connector A2 is communicated with a connector A on the hydraulic motor, the connector B2 is communicated with a connector B on the hydraulic motor, and compared with the prior art, the technical scheme has the advantages that the situation that the oil cylinder is in an extending state due to internal leakage is avoided, and the service life of the oil cylinder is prolonged.

The multifunctional art knife comprises an art knife body and a blade arranged in the art knife body in a sliding mode, the art knife body comprises a tool block, a first shell and a second shell, the first shell and the second shell are symmetrically assembled on the two sides of the tool block, and a through rope cutting groove is formed in the art knife body. The bottom of the blade penetrates through the rope cutting groove, a sliding groove is formed in the first shell, the blade is installed in the sliding groove in a sliding mode, one side of the blade is connected with a shifting button, a movable groove is formed in the side wall of the first shell, and the shifting button is arranged in the movable groove in a sliding mode. The multifunctional art knife provided by the utility model has the functions of the rope cutting groove, the bottle opener, the wrench, the screwdriver and the like besides the telescopic blade, can be used for performing various works in different environments, and does not need to be provided with a plurality of tool knives, so that the working efficiency is improved, the carrying is convenient, and the practicability is high. In addition, the multi-stage positioning and locking functions can be achieved on one side of the blade through the rotary knob, and the safety of the art knife is improved.

The utility model belongs to the technical field of base station antenna installation, and provides a base station antenna wind-resistant and anti-falling installation structure which comprises a connecting disc, the connecting disc is movably connected with a first fixing block through a first connecting piece, and one end and the other end of the first fixing block are fixedly connected with first connecting blocks. The connecting disc is movably connected with a second fixing block through a second connecting piece, one end and the other end of the second fixing block are fixedly connected with a second connecting block, and a locking structure is arranged in the middle of the connecting disc through a connecting column; through the locking structure, the base station is prevented from being connected with the mounting rod only through screws and nuts, so that the influence of wind pressure and wind shearing force from wind on the connection of the base station antenna and the mounting rod is greatly reduced, the base station antenna is prevented from falling off, the damage to the base station antenna is reduced, and the communication effect is improved; and the occurrence probability of safety accidents is reduced.

According to the technical scheme, the electric unlocking seat backrest lock is characterized in that the electric unlocking seat backrest lock comprises a frame, a first microswitch, a second microswitch, a transmission assembly, a control assembly, a stop assembly and a lock body assembly, and the first microswitch, the second microswitch, the transmission assembly, the control assembly, the stop assembly and the lock body assembly are all installed in the frame; the transmission assembly is used for driving the control assembly to move, the control assembly is arranged to control the first microswitch and the second microswitch in an abutting mode, and the first microswitch and the second microswitch can reversely control the control assembly to stop after being abutted, so that excessive movement of a component used for abutting is avoided, and the safety of the device is improved. And abnormal sound caused by a gap after the lock bolt is locked is prevented.

The present invention relates to the technical field of building installation machinery, and specifically to a clamping arm for a multi-thickness wall panel installation robot, comprising a clamping plate portion, a clamping arm portion, and a connecting portion, wherein the clamping plate portion can be installed on the installation robot, and the clamping plate portion and the clamping arm portion are connected together through the connecting portion, and the wall panel can be clamped by opening and closing the clamping plate portion and the clamping arm portion. The clamping arm comprises: a clamping arm bracket, a clamping plate, and a thickness adjustment mechanism; the distance between the clamping plate and the clamping plate portion can be further adjusted by the thickness adjustment mechanism. The distance from the clamping plate to the clamping plate portion on the clamping arm of the present invention can be infinitely adjusted within a certain range, which solves the problem that the wall panel installation machine has a single thickness for clamping wall panels, and that different thickness accessories need to be assembled or the clamping arm needs to be replaced to clamp wall panels of different thicknesses, thereby saving machine costs and installation and replacement time during construction.

The utility model relates to the technical field of gun sight supports, in particular to a gun sight support with a quick locking function, which comprises a support frame, the top surface of the support frame is fixedly connected with a first mounting frame, the upper surface of the first mounting frame is provided with a first stabilizing ring, and the inner side wall of the support frame is provided with a sliding groove. A sliding frame is mounted in the sliding groove in a sliding manner; and the first telescopic rod is mounted on the surface of the right side of the sliding frame. The first telescopic rod can push the sliding frame to slide in the sliding groove, the whole sliding is stable, meanwhile, operation is convenient, a gun sight can be supported and fixed through the design of the second stabilizing ring and the abutting column, the whole supporting and fixing effect is good, and the gun sight is convenient to use. The stability of the front side and the rear side of the gun sight can be enhanced through abutting columns, and then a bottom ring can be driven to adjust the height through stretching of a second telescopic rod.

The invention relates to the technical field of optical fiber coupling, in particular to a clamping device for optical fiber coupling, which comprises a bottom plate, four corners of the top of the bottom plate are fixedly connected with air spring vibration isolators, the tops of the air spring vibration isolators are fixedly connected with a base, the top of the base is fixedly connected with a placement table, and the placement table is fixedly connected with a clamping device. The device comprises a base, a placing table is arranged on the base, the top of the placing table is rotatably connected with a pressing block, the inner side of the base is rotatably connected with a positive and negative screw rod, and the inner wall of the base is slidably connected with a protection plate. When rotating, the positive and negative screw rod can drive the sliding seat to linearly slide on the top of the base along the guide rail, so that the position adjustment of the sliding seat in the horizontal direction is realized. By reasonably controlling the rotating direction and angle of the positive and negative screw rods, the sliding seat can be moved to a preset position, and preparation is made for follow-up accurate clamping.

The utility model relates to the technical field of bathroom locks, and discloses a bathroom lock structure which comprises an outdoor part handle and an indoor part handle, a knob with a spiral groove is arranged in the indoor part handle, an unlocking key in the indoor part handle is slid to enable a cylinder on the unlocking key to be clamped in the spiral groove, and the unlocking key is locked in the spiral groove. The rotating shaft rotates to drive the safety lever in the square hole A of the knob to rotate, and the locking cam in the upper blocking cover of the outdoor part handle is driven to rotate through rotation of the safety lever, so that the locking or unlocking function is achieved. According to the bathroom lock structure, through the exquisite mechanical design, the reliable locking and unlocking functions are achieved, meanwhile, the emergency unlocking function is achieved, and the using flexibility and convenience are improved. The state of the lock can be observed through the display hole in the outdoor handle, a user can clearly know the current state of the lock, and safety is improved. The whole structural design is reasonable, operation is easy and convenient, and the user experience is improved.

The invention provides a side escape window and a using method thereof. The side escape window comprises a window frame assembly, the window frame assembly is rotatably connected with a body in white, and a shielding assembly, an anti-explosion assembly and a locking system are arranged on the inner periphery of the window frame assembly. The shielding assembly is provided with at least two shielding bodies, and one shielding body can slide relative to the other shielding body; the anti-riot assembly is arranged on the outer layer of the shielding assembly, is parallel to the shielding assembly and covers the shielding assembly, and the anti-riot assembly is fixedly connected with the edge, close to the outer side of an automobile body, of the window frame assembly; one part of the locking system is fixedly connected with the movable end of the window frame assembly, and the other part of the locking system is fixedly connected with the interior of the body-in-white. According to the side escape window, external violent invasion is effectively blocked, meanwhile, the ventilation and escape effects are taken into consideration, and the safety performance and the riding comfort of a vehicle are improved.

The utility model discloses an EMB braking device, and particularly relates to the technical field of automobile braking, the EMB braking device comprises a shell, a controller, a first brake pad, a second brake pad, an electromagnet, a first movable magnet and a second movable magnet, the electromagnet, the first movable magnet and the second movable magnet are arranged in the shell, and the electromagnet fixed in the shell is electrically connected with the controller. The two ends of the first movable magnet are connected with the first brake pad and the first movable rod respectively, the other end of the first movable rod extends into a fixing piece fixedly connected with the shell and slides relative to the fixing piece, the first spring is arranged in the fixing piece and arranged outside the first movable rod in a sleeving mode, and the first movable rod can compress the first spring when moving. The second moving magnet is connected with the second brake pad, the second moving rod is connected with the second brake pad, the second moving rod can slide relative to the shell, the second spring is arranged outside the second moving rod in a sleeving mode, and the second spring can be compressed when the second moving rod moves. The braking device can accelerate the braking response speed and improve the stability of the locking effect, and is simple in structure and convenient to operate.

The invention discloses a sealing structure and method for wide-temperature pressure sensor testing, and relates to the technical field of pressure sensor testing. A high-strength locking mechanism is formed by the elastic assembly, the sleeve and the plugging ball, rapid and efficient disassembly and assembly operation can be achieved, and then the testing efficiency is improved; the plugging ball is matched with the through hole and the second groove, so that the locking function of the movable part is realized, and the stability of the sealing structure in the testing process is ensured; the limiting component arranged on the clamping groove can prevent the sleeve and the plugging bead from falling off due to loss of limitation; the clearance fit between the lower convex cavity and the movable part ensures the stable movement of the movable part in the body, and reduces the risk of leakage. During testing, locking and unlocking of the movable part are achieved through simple sleeve pressing and loosening actions, testing operation is facilitated, and the testing efficiency is improved; through cooperation of the plugging bead, the through hole and the second groove, an efficient and stable sealing effect is achieved, and the problem that the wide-temperature pressure sensor is prone to leakage during testing is solved.

The utility model relates to the technical field of scissors, and particularly discloses a pair of multifunctional scissors, which comprises a first scissors main body and a second scissors main body, the first scissors main body is rotatably connected with the second scissors main body through a pin shaft, the second scissors main body is provided with a middle through hole for the first scissors main body to penetrate through, and the first scissors main body and the second scissors main body are connected through a hinge pin. A shrimp pressing tail part and a shrimp opening back part are arranged on the first scissors main body, scaling teeth are arranged on the second scissors main body, a limiting lock catch is arranged on the first scissors main body, and a lock catch groove matched with the limiting lock catch is formed in the second scissors main body. The shrimp pressing tail is arranged to press the shrimp tail and draw out shrimp lines, the shrimp opening back is arranged to be inserted into the inner side of the shrimp back to break the shrimp back, the scale scraping teeth are arranged to scrape scales or cut out raised grains on the shrimp back, the functions are diversified, the limiting lock catch is arranged to be matched with the lock catch groove to lock the first scissor body and the second scissor body, and the shrimp opening back is arranged to be inserted into the inner side of the shrimp back. The lock catch function is achieved, and safety is good.