92 results about "Contact shell" patented technology

The invention discloses a magneto-rheological self-adaptive locking clamp for turning and a machining method of the magneto-rheological self-adaptive locking clamp, and belongs to the technical field of precision workpiece machining equipment. Comprising a flexible contact shell making contact with a workpiece, a locking unit arranged at the outer end of the flexible contact shell and an outer shell arranged outside the locking unit. The locking unit comprises an axial locking assembly and a radial pushing assembly, and the axial locking assembly is a self-adaptive locking assembly with an integrated magnetic circuit; the radial pushing assembly is a rigid pushing assembly. By means of the clamp, high-precision, lossless and self-adaptive locking of workpieces is achieved, and clamping deformation of thin-wall and special-shaped workpieces is effectively restrained. Through a composite mechanism of magneto-rheological locking and mechanical rigid pushing, the dynamic stability of the machining process is remarkably enhanced, meanwhile, it is ensured that the locking force is quick in response, low in energy consumption and stable in long-term work, and the machining quality and efficiency and the reliability of the clamp are improved.

To provide a connector which can stabilize shield performance of an outer conductor.SOLUTION: An outer conductor 30 of a connector 10 comprises: a cylindrical body part which has an open front surface and an open rear surface; a back plate part 47 which is disposed so as to be displaceable from an open state to a closed state with respect to the body part 31; and lateral plate parts 51 which protrude from right and left ends of the back plate part 47. The body part 31 has inner lateral plate parts 39 on its right and left ends. The inner lateral plate parts 39 are disposed such that they make contact with inner surfaces of the lateral plate parts 51 when the back plate part 51 is in the closed state. The housing 20 has a pressing part 40 which presses the lateral plate parts 51 against the inner lateral plate parts 39.SELECTED DRAWING: Figure 3

The utility model provides an inductor assembly and a boosting system. The inductor assembly comprises a shell, an inductor and a heat conduction gasket. An accommodating cavity is formed in the shell, and the inductor is mounted in the accommodating cavity; the first side surface of the heat-conducting gasket is in multi-surface contact with an inductance coil of the inductor, and the second side surface of the heat-conducting gasket is in multi-surface contact with the shell corresponding to the accommodating cavity; and a cooling channel is arranged in the shell. According to the utility model, the inductor is placed in the accommodating cavity of the shell, the first side surface of the heat-conducting gasket is in multi-surface contact with the inductance coil of the inductor, and the second side surface of the heat-conducting gasket is connected with the inner wall of the shell corresponding to the accommodating cavity, so that the contact area of the heat-conducting gasket with the inductance coil and the inner wall of the shell corresponding to the accommodating cavity is enlarged; heat generated by the inductance coil can be quickly transferred into the shell; the cooling channel used for being filled with the cooling liquid is arranged in the shell, the cooling liquid flows in the cooling channel, heat received by the shell can be taken away, and the temperature of the inductance coil is reduced.

A connector assembly (3) is described, comprising a connector (1) for transmitting high-frequency data signals and for angularly variable coupling with a mating connector (11). The connector (1) has a signal line unit (5), a cable exit housing (7), and a contact housing (9). The signal line unit is bendable transversely to a longitudinal direction and has two separate signal lines (13), each with a signal line terminal (17) and a contact terminal (21). The cable exit housing (7) accommodates an end section of a signal transmission cable (23) and a first end section of the signal line unit and includes a first coupling section (25) of a swivel joint (27). The contact housing accommodates the second end section of the signal line unit, interacts with the mating connector, and includes a second coupling section (31) of the swivel joint. The swivel joint is configured such that - the first coupling section and the second coupling section can be positioned at different angular angles relative to each other, - Interlocking structures (33) between the first coupling section and the second coupling section in a prestressing direction (35) are elastically prestressed to act as an interlock in order to hold the two coupling sections selectably locked in one of the different angular positions, - the locking mechanism can be temporarily released by applying force against the direction of preload in order to selectively shift the two coupling sections into one of the various angular positions.

The invention relates to the technical field of thermal fuses, in particular to a thermal fuse, a carrier tape, an onboard, a protection device and a manufacturing method. The temperature fuse comprises a first electrode, a second electrode, a temperature sensing alloy and a shell. An accommodating space is formed in the shell; the first electrode and the second electrode are respectively provided with a first end part and a second end part which are opposite; the first end part of the first electrode and the first end part of the second electrode are oppositely arranged in the accommodating space at an interval; the temperature sensing alloy is positioned in the accommodating space and is electrically contacted with the first end part of the first electrode and the first end part of the second electrode respectively; through holes are formed in the positions, located at the first end of the first electrode and the first end of the second electrode, of the shell respectively. Through the arrangement, the product size is reduced while the welding quality is improved, and the stability and the performance of the product are effectively improved.

The invention discloses an intelligent circuit breaker with a compact structure, and relates to the technical field of circuit breakers, the intelligent circuit breaker comprises a body mechanism, the body mechanism comprises a shell, the inner wall of the shell is fixedly provided with a bimetallic strip, an arc extinguish chamber, two circuit connectors, an electromagnetic coil and a control handle, and the interior of the shell is in threaded connection with two fixing bolts. The ends, close to the arc extinguish chamber, of the two fixing bolts penetrate into the circuit connectors, the interiors of the two circuit connectors are slidably connected with fixing plates, the front faces of the two fixing plates make contact with the ends, close to the fixing plates, of the fixing bolts, and a processing mechanism is arranged on the outer surface of the shell. The processing mechanism comprises a polishing unit, the polishing unit is located on the surface of the shell, the polishing unit is used for polishing and removing an oxide layer on the circuit connector, according to the intelligent circuit breaker with the compact structure, by arranging the polishing unit, heating of the circuit breaker caused by increase of contact resistance is avoided, and good contact between the circuit and the circuit breaker is kept.

The invention discloses a fabricated building connection joint and a connection method thereof, and belongs to the technical field of building connection. The fabricated building connection joint comprises a shell, an open hole is formed in one end of the shell, a sealing cover for blocking the open hole is arranged at the open hole, the sealing cover is in sliding connection with the shell, the shell is filled with non-Newtonian fluid, and the inner surface of the sealing cover makes contact with the non-Newtonian fluid; the two to-be-connected components are connected through a connecting structure arranged on the shell, the outer surface of the sealing cover makes contact with the surface of one to-be-connected component, and the bottom of the shell makes contact with the surface of the other to-be-connected component. The fabricated building connecting joint and the connecting method thereof have the advantages of being simple in structure, convenient to use and stable in connection; and the harm caused by resonance between the components can be effectively reduced.

The utility model belongs to the technical field of lithium batteries, and particularly relates to lithium battery pack electrode durability testing equipment which comprises an electric control base. A test box is arranged above the electric control base, a box cover is detachably arranged above the test box, and a supporting frame is arranged on the rear wall of the inner side of the test box; a plurality of electrode contact mechanisms are uniformly arranged on the support frame, a plurality of plugging ports are arranged behind the test box, and an adjusting mounting mechanism is arranged on the support frame; an environment simulation mechanism is arranged in the test box, the electrode contact mechanism comprises a plurality of contact supports arranged on the support frame, a contact shell is slidably connected in each contact support, a spring is arranged in each contact support, the other end of each spring is connected with the corresponding contact shell, a contact head is arranged on each contact shell, and the corresponding contact head is electrically connected with a plug port. The electrode durability testing device can test lithium battery packs of different sizes, and can detect a plurality of electrodes at one time, so that the testing efficiency of the electrode durability testing device is improved.

The invention relates to a contacting arrangement for electrically contacting at least one pair of busbars (7), the two busbar ends (7a, 7b) of which are releasably connectable to one another in a longitudinal direction (x) of the busbar, aligned one behind the other, and interposed with a contact housing into which the two busbar ends (7a, 7b) are inserted in opposite directions in the longitudinal direction (x). According to the invention, the contact housing has a locking system with which the two busbar ends (7a, 7b) can be electrically connected to one another in the interior of the housing in a simple manner.

The invention discloses an evaporative two-phase liquid cooling radiator, and relates to the technical field of radiators, the evaporative two-phase liquid cooling radiator comprises a shell assembly and a heat conduction structure, the shell assembly comprises a cooling shell, a heat collection shell and a contact shell, the cooling shell, the heat collection shell and the contact shell are sequentially welded from top to bottom, a heat conduction cavity is formed in the contact shell, and the heat conduction structure is arranged in the heat conduction cavity; floating type heat conduction assemblies used for rapidly conducting out heat are arranged in the heat collection shell and the contact shell. The floating type heat conduction assembly comprises a heat conduction block, an upper baffle and a lower baffle, and a heat collection cavity is formed in the heat collection shell. The shell forms an internal structure to facilitate rapid heat conduction, the heat conduction structure and the floating type heat conduction assembly are matched to rapidly dissipate the heat, and therefore the heat dissipation efficiency can be greatly improved, and the floating type heat conduction assembly can prevent the pressure intensity in the contact shell and the heat collection shell from being too high in the heat dissipation process, and the heat dissipation efficiency is improved. Therefore, deformation of the shell assembly can be avoided, the explosion-proof effect is achieved, and the safety is good.

The invention relates to the technical field of automobile shock absorber piston rod tapping, and particularly discloses automobile shock absorber piston rod tapping equipment and method.The top of a workbench is fixedly connected with a chuck component, and the side, away from the chuck component, of the top of the workbench is fixedly connected with a protection box; a turning tool part is fixedly connected to the inner side of the protection box, a collecting part is fixedly connected to the middle of the top of the workbench, and the side face of the contact part is fixedly connected with the inner side of the protection box. According to the tapping equipment and method for the automobile shock absorber piston rod, a grinding assembly is arranged, limiting grooves in the two sides of a grinding block are matched with limiting blocks on the inner side of a contact shell, when the grinding block rotates on a connecting shaft and abuts against the piston rod, the limiting grooves make extrusion contact with the limiting blocks, and the rotating direction and position of the grinding block are limited; and the burrs on the side surface of the piston rod can be contacted and polished in all directions without dead angles.

The utility model relates to a kind of general tool of large long diameter ratio special-shaped shell rotary inner chamber spraying, including tool table, annular support and compensation mechanism, two annular supports are fixedly installed in the tool table, the annular support top is uniformly distributed with three compensation mechanisms, large long diameter ratio special-shaped shell is penetrated two disc inner hole, is placed into tool table, by rotating adjusting lever and drive adjusting seat close to shell, wherein adjusting lever is screw-mounted with fixed seat, to realize the mobile adjustment of adjusting seat, multiple movable column is equipped on the side of adjusting seat, multiple column is equipped with abutting head close to shell body one end, abutting head is attached to shell surface, since shell is special-shaped shell, the deformation amount of multiple column end is not one after contacting shell, column moves in circular groove, and ring body moves, ring body moves will extrude spring, and abutting head one end is equipped with rubber layer cover, and is attached to shell, increase friction, protect shell surface.

The invention provides a self-loop test module. The self-loop test module comprises a shell, a circuit board and a cooling chip, the circuit board is arranged in the shell and comprises a self-loop test circuit, a microcontroller, a temperature sensor and a refrigeration chip driver. The refrigeration chip is arranged in the shell. The refrigeration chip is provided with a first surface and a second surface which are positioned on two opposite sides, the first surface is in contact with the circuit board, and the second surface is in contact with the shell; one of the first face and the second face is a cold face, and the other one of the first face and the second face is a hot face.

The invention relates to the technical field of switches, in particular to a self-resetting overvoltage and undervoltage protection switch which comprises a first shell, a circuit board, an armature sheet, a coil assembly and a permanent magnet assembly, the circuit board is arranged in the middle of the interior of the first shell and comprises a first control chip and a second control chip, and the armature sheet is arranged in the position, close to the top of the first shell, of the interior of the first shell. The armature sheet is located on the upper portion of the circuit board, the coil assembly is arranged in the middle of the interior of the first shell and close to the right side of the first shell, a movable contact assembly of the coil assembly makes contact with a static contact of the armature sheet, and the movable contact assembly comprises a movable contact shell, a movable contact body, a first spring, a connecting rod, a threaded rod and a motor. The permanent magnet assembly is arranged in the middle of the interior of the first shell and close to the right side of the first shell, and the permanent magnet assembly is arranged on the right side of the coil assembly. According to the self-resetting over-voltage and under-voltage protection switch, the motor pushes the threaded rod so as to push the connecting rod and compress the first spring, the movable contact body is pushed to move forwards, and the loss part of the movable contact is compensated to complete contact with the static contact.

Pipe cutting equipment for indoor and outdoor decoration relates to the technical field of auxiliary equipment for indoor and outdoor decoration, a cutting mechanism is installed in a shell, tightening mechanisms are installed at the bottom end of the shell, the cutting end of the cutting mechanism is located between the tightening mechanisms, and an internal power source and a power switch group are installed in the shell. The input end of the power switch group is electrically connected with the output end of the internal power supply, the power supply output end of the power switch group is electrically connected with the power supply input end of the tightening mechanism, and the bottom end of the handheld shell is fixedly connected with two contact shells. The pipe cutting equipment for indoor and outdoor decoration is small in size, convenient to carry by a worker, capable of being operated by a single person, free of occupying more space, capable of cutting pipes with different diameters and convenient to operate by the worker, the cutting mechanism is fixed to the pipes through the tightening mechanism, and the cutting efficiency is improved. And the pipe is cut through the cutting mechanism.

This optical connector comprises: a ferrule (10) having a plurality of fiber holes (11) aligned in a first direction (X), and a connection end surface (10a) in which the plurality of fiber holes (11) open; a pin clamp (50) that is disposed on the side of the ferrule (10) opposite to the connection end surface (10a) and supports the ferrule (10); a biasing member (60) that biases the pin clamp (50) toward the connection end surface (10a) side; a latch (40) that is locked to an adapter; and a housing (20) that houses a part of the ferrule (10), the pin clamp (50), the biasing member (60), and a part of the latch (40). When viewed from the longitudinal direction of the fiber holes (11), the biasing member (60) has an elliptical shape, the latch (40) is disposed on a first side in the first direction (X), the pin clamp (50) has a first support part (51b) in contact with the distal end part of the biasing member (60), the housing (20) has a second support part (20a) in contact with the base end part of the biasing member (60), and a first distance in the longitudinal direction between the first support part (51b) and the second support part (20a) on the first side in the first direction (X) is greater than a second distance in the longitudinal direction between the first support part (51b) and the second support part (20a) on a second side which is the opposite side of the first side in the first direction (X).

Systems and methods for a multifunctional structural element of an inverter. An inverter includes: a housing including a first surface and a second surface opposite the first surface; the power module comprises a first surface and a second surface opposite to the first surface, and the first surface of the power module is in contact with the first surface of the shell; a heat sink including a first surface and a second surface opposite to the first surface, where the first surface of the heat sink is coupled to the second surface of the power module; the multifunctional structural element comprises a first surface and a second surface, and the first surface of the multifunctional structural element is in contact with the second surface of the heat sink; and a printed circuit board coupled to the second surface of the multifunctional structural element; wherein the housing and the heat sink define a cooling circuit.

The utility model relates to a three-power-supply change-over switch contact assembly which comprises a first power supply static contact, a second power supply static contact, a third power supply static contact, a load static contact and a moving contact assembly which are arranged between a base and a cover, and the moving contact assembly can clockwise and anticlockwise rotate by 360 degrees between the base and the cover. When the moving contact assembly rotates, six stay positions exist, three positions are provided with static contacts and moving contacts which are contacted, three closing positions are correspondingly arranged, and three positions are not provided with static contacts, and three opening positions are correspondingly arranged. The moving contact assembly is based on a rotating shaft and a moving contact shell and comprises two moving contacts installed on the moving contact shell, the moving contact shell is sleeved with the two moving contacts through spring frames, a main spring is arranged between the two moving contacts, and contact pressure is provided through the main spring.

The invention relates to a device and method for preventing and controlling machining redundancy of a spherical shell assembly of a starting box. The device comprises a tensioning screw, a pressing plate, a supporting plate and a sealing ring. The tensioning screw is installed on the supporting plate and used for controlling the distance between the pressing plate and the supporting plate. The pressing plate is mounted on the surface of the sealing ring; the inner hole and the end face of the sealing ring are contacted and limited, so that the sealing ring is pressed and fixed; the supporting plate is installed on the conical surface of an inner hole of the sealing ring and used for opening the sealing ring. The sealing ring is installed between the pressing plate and the supporting plate, contact limiting is carried out through the end face of the pressing plate and the outer conical surface of the supporting plate, then the surface of an inner cavity of the shell assembly is contacted, and sealing and protection of the inner cavity of the shell assembly are achieved.

The invention describes a connector assembly (3), having a connector (1) for transmitting high-frequency data signals and for variable-angle coupling with a mating connector (11). The connector (1) has a signal line unit (5), a cable outlet housing (7) and a contact housing (9). The signal line unit can be bent transversely to a longitudinal direction and has two separate signal lines (13), each with a signal line connection (17) and a contact connection (21). The cable outlet housing (7) receives an end region of a signal transmission cable (23) and a first end region of the signal line unit and comprises a first coupling section (25) of a pivot joint (27). The contact housing receives the second end section of the signal line unit, interacts with the mating connector and comprises a second coupling section (31) of the pivot joint. The pivot joint is configured such that: - the first coupling section and the second coupling section can be positioned in different angular positions relative to one another; - latching structures (33) between the first coupling section and the second coupling section interact in a preloading direction (35) in such an elastically preloaded manner as a latching means to hold the two coupling sections latched in one of the different angular positions as required; - the latching means can be temporarily released by applying force against the preloading direction in order to shift the two coupling sections into another of the different angular positions as required.

The invention relates to a vehicle (4) comprising an on-board power supply (3) with at least one electrical connector (15, 2; 17, 2; 1, 19; 1, 21; 23, 2; 1, 25; 1, 28), comprising a first connector element (1; 15; 17; 23) into which a second connector element (2; 19; 21; 25; 28) can be inserted, wherein the first connector element (1; 15; 17; 23) has a receptacle (5) for the second connector element (2; 19; 21; 25; 28) into which at least one first contact element (6; 24) designed as a blade projects, the second connector element has a contact housing (9; 28) that can be inserted into the receptacle and is open in the insertion direction, within which at least one spring-loaded clamping contact formed second contact element (10) into which the first contact element (6;24) is clamped in the plugged-in state, and wherein the first plug-in element and / or the second plug-in element is / are each equipped with at least one heat pipe (16; 18; 20; 22; 24; 26; 29).;

The excitation type circuit breaking device is used for protecting a circuit and comprises a shell, an excitation source, an impact piece, an insulation structure and a conductive piece, the shell is provided with a first end and a second end which are far away from each other in the axial direction, the excitation source is installed at the first end and connected to the impact piece, the insulation structure is installed on the impact piece, and the conductive piece is arranged on the shell. The insulating structure protrudes out of the outer circumferential wall of the impact part and makes contact with the inner circumferential wall of the shell, and the conductive part penetrates through the shell in the radial direction. The excitation source is started under a preset condition and provides initial power for the impact part, the impact part axially moves from the first end to the second end and thrusts the conductive part, and during the period, the insulation structure can wipe the fracture surface of the conductive part. The insulating structure can take metal chips on the conductive part away from the disconnected conductive part, the phenomenon of electric arc reignition of the disconnected conductive part is avoided, the arc extinguishing time is shortened, the temperature of the shell is reduced, and the metal chips generated by disconnection of the conductive part are prevented from falling into the shell and burning the shell.

The utility model relates to a cold-resistant and anti-freezing cable in the technical field of cables, and provides a cold-resistant and anti-freezing cable. A cold-resistant anti-freezing cable comprises a plurality of electric wires, insulating layers sleeve the surfaces of the plurality of electric wires, protective layers sleeve the plurality of insulating layers, a plurality of heat conduction cavities are formed in the surface of the protective layer, a plurality of damage prevention strips are arranged in the heat conduction cavities, a heat preservation layer sleeves the surface of the protective layer, and a shell layer is arranged on the surface of the heat preservation layer. The surface of the shell layer is sleeved with a water absorption layer, and the inner side of the water absorption layer is fixedly connected with a plurality of anti-sticking blocks. When the cable is used in a cold region, rain and snow can be conveniently absorbed through the water absorption layer, and when the cable is frozen in a cold environment, the shell layer cannot be attached to the water absorption layer due to the action of the anti-attaching block, so that the rain and snow are prevented from being in contact with the shell layer; corrosion of rain and snow to the shell layer is reduced; and heat absorption during freezing of rain and snow is prevented, and cable temperature is reduced to affect cable work.

The utility model discloses a single-end lead-out N wire shell connection type electric heating element for simulating a nuclear fuel rod, which comprises a metal sleeve, an electric heating wire is arranged in the metal sleeve, an insulating material is filled between the electric heating wire and the metal sleeve, and an insulator for plugging is arranged at the access end of the metal sleeve. A first lead-out rod made of a conductive material is fixed in the insulator and is connected with one end of the electric heating wire, and an L-shaped lead wire penetrates through the insulator and is connected with the first lead-out rod, and is characterized in that the electric heating wire is in a spiral coil pipe shape and is arranged at the axis position of the metal sleeve, and the other end of the electric heating wire is connected with a second lead-out rod made of a conductive material; the other end of the second lead-out rod is fixedly connected with a bottom sealing plate at the end of the metal sleeve, a metal sleeve is arranged on the outer side of the insulator, one end of the metal sleeve is connected with the metal sleeve, and the other end of the metal sleeve is connected with the N lead. According to the utility model, the safety and the simulation effect can be better improved, and the simulation test requirements of the nuclear fuel rod can be better met.

The application belongs to the technical field of robots, and particularly relates to a wheel-leg mechanism with variable ground contact characteristics; the wheel-leg mechanism comprises a first thigh, a second thigh, a first shank, a second shank and a wheel, the lower end of the second shank is provided with two groups of brake assemblies; the wheel is composed of twelve blocks, the outer side of the twelve blocks of the wheel is wrapped with contact shells with different stiffness characteristics, and one end of the wheel shaft is fixedly provided with an absolute encoder. The wheel of the application is composed of twelve blocks, and the stiffness characteristics of the outer material of each block are different, so that when the wheel-leg mechanism walks as a foot end, the side swing angle of the leg is controlled or when the spliced wheel contacts with the ground, the front and back movement of the leg is controlled, the contact position of the spliced wheel and the ground can be changed, the foot-ground contact characteristics are changed, and thus the contact shells with different stiffness characteristics wrapped on the outer side of the wheel can be selected to contact with the ground according to different terrains.

The present invention discloses a servo motor rotor punching sheet processing and forming device, which relates to the technical field of motor punching sheets. There is a base, and a bracket is fixedly connected to the top of the base. A motor is fixedly connected to the top of the bracket. One end of the bracket far from the motor is fixedly connected to a hydraulic rod. There is an upper die component, which is used for processing and forming the punching sheet. There is a lower die component, which cooperates with the upper die component to process and form the punching sheet. A cooling component is fixedly connected to the bottom of the lower die component. By setting a contact mechanism in the present invention, the contact shell slides on the convex module through the sliding rod under the stretching action of the first spring, so that the scraping plate contacts and moves along the inner wall of the convex module. The scraping plate scrapes off the residual punching sheet impurities on the convex module, thus preventing impurities from remaining on the surface of the convex module. When the punching sheet is subsequently stamped and formed, the impurities are stuck between the convex module and the punching sheet.

The utility model discloses an assembling structure of a circular connector, which comprises a fixed seat and a front cover arranged on the fixed seat, and further comprises an inner column and a shell which is matched and combined with the front cover in aperture, a crown spring is arranged in the shell, the upper end cover of the shell is connected with a rear cover, and when the inner column slowly enters the interior of the shell, the crown spring is connected with the rear cover. The outer wall of the inner column gradually extrudes the outer side wall of the rear cover and the outer side wall of the crown spring to form an inner extrusion structure, the crown spring and the rear cover are assembled with the shell, and the rear cover and the crown spring are fixed through a riveting technology to form an outer riveting structure. When in use, a finished connector assembled by a structure of riveting an inner machine with an outer machine is low in use temperature under the condition of the same large current, and when a comparison piece and the finished connector are in the same environment temperature, the maximum current passing through the finished connector is also large, so that the service life of the finished connector is prolonged, and the service life of the finished connector is prolonged. The finished product in the embodiment adopts an outer riveting inner machine structure to enable the crown spring to fully contact with the inner side wall of the shell, so that the large current transmission is more stable, the temperature rise is lower, the manufacturing process is simple, and the cost is saved.

The utility model discloses a safety switch device of a spunlace machine, which comprises a pull switch installed on the spunlace machine, the pull switch comprises a trigger pull wire, and the pull switch works after the trigger pull wire is triggered; the mistaken touch prevention shell is arranged on the spunlace machine, and the mistaken touch prevention shell is used for surrounding the triggering stay wire, so that the triggering stay wire cannot be mistakenly touched; the mistaken touch prevention shell comprises a mounting plate mounted on the spunlace machine and two protection plates hinged to the upper side and the lower side of the mounting plate, torsional springs are arranged at the joints of the protection plates and the mounting plate, and the torsional springs are used for resetting the protection plates, so that the corresponding protection plates and the mounting plate are kept in a vertical state; and one end of the linkage device is arranged on the trigger stay wire, and the other end of the linkage device is connected with the protection plate. According to the utility model, a worker can conveniently trigger at any time and cannot touch by mistake when the trigger is not needed, so that the practical use is facilitated.

The embodiment of the application provides a detection instrument and a sterilization system, the detection instrument comprises a shell assembly, a detection assembly and a shielding assembly; wherein: the detection assembly comprises a first shell, a detection circuit board and a probe; wherein the detection circuit board is arranged in the first shell and is electrically connected with the probe, the detection circuit board comprises a sensitive element; the first end of the probe is fixed in the first shell, and the second end of the probe extends out of the first shell; the shell assembly comprises a relative sliding contact shell and a pressing part, and the detection assembly is located below the bottom of the pressing part; wherein the contact shell is used for abutting against a sampling part, and the pressing part is used for driving the detection assembly to move towards the sampling part to stab the probe into the sampling part to perform detection; when the detection instrument is sterilized by irradiation rays, the shielding assembly is used for blocking part of the irradiation rays to form a full shadow shielding area for protecting the sensitive element, and at least part of the full shadow shielding area is configured as a sealed area for preventing external objects from entering.