83results about How to "Realize limit fixation" patented technology

The invention relates to the technical field of automobile part processing, in particular to a composite motor end cover which comprises a cover body and a sealing plate, the cover body is provided with a front cavity, a shaft penetrating hole and a back cavity, the shaft penetrating hole is provided with an upper preset groove and a lower preset groove, an upper oil storage box is installed in the upper preset groove, and a lower oil storage box is installed in the lower preset groove. A first inflow hole and a second inflow hole are formed in the upper preset groove, a first overflow hole and an overflow hole are formed in the lower preset groove, drainage pipes are inserted into the first inflow hole, the second inflow hole, the first overflow hole and the second overflow hole, a driven ring body is installed on the inner side of the shaft penetrating hole, and a vertical moving frame is installed on the lower oil storage box. The lower end of the vertical moving frame is fixedly connected with a piston rod of which the lower end is connected with a piston disc; the circulating oil channels are formed at different angles of the cover body, so that the bearings in the bearing chambers are fully lubricated and cooled, and the heat dissipation efficiency of the motor end cover is improved; the invention also provides a processing technology of the composite motor end cover.

The invention relates to the technical field of pigment characteristic detection, in particular to an infrared reflection pigment characteristic detection device and a detection method thereof.The infrared reflection pigment characteristic detection device comprises a detection box and a detection module arranged in the detection box, a supporting base is fixedly installed at the lower end of the detection box, and an inlet is formed in the detection box; a sliding plate is slidably connected to the detection box, a limiting assembly used for limiting and fixing a sample plate is arranged on the sliding plate, a protective drying mechanism is arranged on the sliding plate, and through cooperation of a door closing mechanism and protective covers, the two protective covers are far away from each other and drive two connecting blocks to be far away from each other; the connecting blocks drive the moving blocks to extrude the second springs, the two moving blocks are far away from each other, under the action of the connecting supporting rods, the two moving doors are close to each other and make contact with each other, at the moment, the two protective covers are moved away from the sample plate, the two moving doors can automatically seal the inlet, and convenience is improved.

The invention relates to the technical field of polishing, in particular to an environment-friendly sand suction and dust removal system for workpiece polishing, which comprises a polishing working bin, a suction connecting pipe is arranged on the polishing working bin in a communicating manner, a shunt connecting pipe is arranged on the suction connecting pipe in a communicating manner, and two communicating branch pipes are arranged on the shunt connecting pipe in a communicating manner; the two communicating branch pipes are both slidably connected with blocking sliding plates, the two communicating branch pipes are both slidably provided with filtering plates, the ends, away from the flow dividing connecting pipe, of the two communicating branch pipes are provided with suction pipes in a communicating mode, a negative pressure fan is arranged in the suction pipes, and through cooperation of the blocking sliding plates and the pre-wetting component, the negative pressure fan is arranged in the suction pipes; when the blocking sliding plate slides downwards, a square piston extrudes water in a liquid collecting box body through a liquid outlet connecting bent pipe, the water enters a liquid separation transverse pipe and is finally sprayed out of an atomization spray head, and the sprayed water is used for wetting a filter plate, so that dust flying during disassembly of the filter plate is reduced, and the environmental protection performance is improved.

The invention relates to the technical field of laser dotting inspection, in particular to a laser dotting detection device which comprises a bottom plate, four parallel supporting plates are fixedly arranged on the bottom plate, a carrying plate is fixedly arranged at the tail end of each supporting plate, and an inspection mechanism used for detecting materials to be machined is fixedly arranged on the carrying plate. By means of a clamping device arranged on a connecting plate, when a worker uses the device, the device is firstly moved to a proper position, and by means of a first extrusion plate arranged on the vertical face of a positioning plate and a second extrusion plate arranged on the horizontal face of the positioning plate, limiting and fixing of materials to be machined are achieved; when the double-rotor linear motor in the guide plate operates, the linkage plate fixedly connected with the double-rotor linear motor drives the clamped material to move, the reciprocating lead screw is driven to rotate through the clamping ring in the moving process, the rotating shaft drives the laser inspector fixedly connected with the rotating shaft to rotate, and comprehensive inspection of the material is achieved.

The utility model discloses a hydrogen pressure stabilizing and metering device, which relates to the technical field of hydrogen fuel filling equipment and comprises an exhaust pipe, a stabilizing mechanism arranged below the exhaust pipe, a gas guide pipe fixedly communicated with the left end of the exhaust pipe, an electromagnetic valve arranged inside the gas guide pipe, a pressure sensor arranged inside the exhaust pipe and a flow meter arranged inside the exhaust pipe. The outer surface of the exhaust pipe fixedly communicates with a communicating pipe, the left end of the communicating pipe fixedly communicates with the outer surface of the gas guide pipe, a manual valve is arranged in the communicating pipe, and a filtering mechanism is arranged above the stabilizing mechanism and comprises a shell. Through the arrangement of the exhaust pipe and the filtering mechanism, impurities in hydrogen can be filtered by utilizing the filtering mechanism during use, so that the hydrogen entering the exhaust pipe is ensured to be pure enough, and the problem that the purity of the hydrogen entering the exhaust pipe cannot be ensured due to the fact that an existing device is not provided with a corresponding filtering device is solved; and the accuracy of a metering result is effectively ensured.

The packaging carton comprises a carton body, the inner wall of the carton body is provided with the high-barrier nano coating, a square-column-shaped protection body is fixedly connected into the carton body, inserting grooves are formed in the two sides of the middle of the square-column-shaped protection body, inserting plates are connected into the two inserting grooves in a sliding mode, and the inserting plates are connected with the inner wall of the square-column-shaped protection body in a sliding mode. The upper ends of the middles of the end faces of the two sides of the inserting plate are provided with abutting plates, the abutting plates are elastic elements, the two ends of the lower end face of the inserting groove are fixedly connected with extrusion columns, and a sliding assembly is arranged at the lower end of the interior of the inserting plate and used for driving the abutting plates to be arched or flattened. The problem that in the prior art, when the size of a borne object is smaller than that of an inner cavity of a partition, due to the fact that effective constraint is lacked in the moving process of the box body, the object is prone to displacement and shaking in the carrying vibration or logistics circulation link, and the object is damaged is solved.

The utility model relates to the technical field of air filters, in particular to an air filter mounting seat which comprises a base and two fixing seats fixedly mounted at the top end of the base, each of two extrusion fixing components comprises a mounting seat mounted above the base in a telescopic sliding manner, and a plurality of rubber extrusion heads are elastically mounted on opposite sides of the mounting seats. The two synchronous transmission assemblies each comprise a screw which moves synchronously with the corresponding mounting base and is spirally mounted at the bottom of the base, each rubber extrusion head can fully extrude and abut against the surface of the air filter through the material characteristics of the rubber extrusion heads and compression deformation of a small spring on the back, and the beneficial effects that limiting and fixing are sufficient are achieved; when the two extruding and fixing assemblies integrally move in opposite directions to extrude and fix the air filter, the screw can be driven to spirally extend out of the base, so that the air filter is directly screwed into a threaded hole in a wall surface through threads, the screw does not need to be screwed or unscrewed independently, the operation steps are reduced, and the assembling and disassembling efficiency is improved.

This utility model discloses a road speed bump structure, including a first speed bump block and a second speed bump block. The second speed bump block has slots at both ends. Insert rods are slidably connected to the inner sides of both ends of the first speed bump block, and these insert rods engage with the second speed bump block through the slots. T-slots are formed on the inner sides of the top surfaces of both the first and second speed bump blocks. Through the action of the insert rods and limiting pins, the horizontal and vertical directions of the first and second speed bump blocks can be limited and fixed, ensuring the stability of the first and second speed bump blocks during operation. Furthermore, this method eliminates the need to drill holes in the ground for each first and second speed bump block; only holes need to be drilled at either end of the first or second speed bump block. This reduces the number of holes required, improves installation efficiency, reduces damage to the ground, and extends the service life of the road surface.

The invention relates to the technical field of assembling devices, and particularly discloses a vehicle cabin auxiliary assembling device which comprises a swing arm, a fixing assembly, an operation panel and a carrier vehicle. The fixing assembly is configured to clamp and fix the equipment cabinet, the fixing assembly is installed at one end of the swing arm, and the fixing assembly comprises a clamping arm capable of performing locking or unlocking action; the operation panel is installed at the other end of the swing arm and used for controlling locking or unlocking of the clamping arm. The carrier vehicle is used for transporting the equipment cabinet. The device has the advantages that the assembly efficiency and safety are improved, and the damage to the equipment cabinet in the assembly process is reduced.

The utility model belongs to the technical field of cleaning and drying, specifically a high temperature filter bag cleaning and drying device, including drive motor, the output of drive motor is installed with connecting plate, the inside of one end of connecting plate is provided with the sliding slot, the inside sliding installation of sliding slot has the sliding block, the inside rotatory installation of one side of sliding slot has the thread rod, one end of thread rod is installed with handle, the inside rotatory installation of sliding block has locking screw, the bottom side of sliding block is installed with plate brush, loosen locking screw, rotate handle, handle drives thread rod to rotate in the sliding slot, the rotation of thread rod will make sliding block slide in the sliding slot, thereby adjusting the position of plate brush, make plate brush and the outside of filter bag mutually adhere, when plate brush adjusts to the appropriate position, rotates locking screw, makes the one end of locking screw and the one side of connecting plate mutually abuts tightly, fixes the position of sliding block, has realized the position of plate brush to adjust according to the size of filter bag, makes plate brush can contact with the filter bag of different size.

The utility model provides a kind of electric power tower signboard fixed support, including mounting plate, the right side of mounting plate is fixed with limit cylinder, the middle part of limit cylinder is vertically embedded with connecting column, the top and bottom of connecting column are fixed with buffer disc, the left side of buffer disc is vertically embedded with locking bolt, the inside right side of buffer disc is fixed with guide rod, the outside of guide rod is nested with buffer spring and adapter plate, the right side of two adapter plates is fixed with outer frame, the inside lower side of outer frame is fixed with inner rod transversely, the inside upper side of outer frame is embedded with bidirectional screw rod transversely, the left and right ends in outer frame inside are embedded with clamping plate.The utility model can fix various sizes of signboard, more widely applicable, and can adjust the display direction of fixed signboard, meanwhile, signboard will not be blown away and blown up in strong wind, wind resistance is better, further improve the service life of signboard.

This utility model discloses a machining device for positioning holes in CNC machining fixtures, relating to the field of positioning hole machining technology. It includes a worktable with an adjustment component inside, and a U-shaped frame fixed to the top of the worktable. A movable plate is slidably connected to the inner wall of the U-shaped frame, and an oil spraying component is located at the top of the movable plate. The adjustment component includes a fixed seat fixed to the center of the top of the worktable. This utility model achieves positioning and fixing of the positioning hole by inserting a positioning pin into the positioning hole in the part. When the tapered shaft rises, multiple sets of ball joints compress the return spring and extend from inside the positioning pin until the end face of the ball joint abuts against the inner wall of the positioning hole in the part. This effectively adapts to changes in the diameter of the positioning hole, ensuring precise alignment between the part and the tool, thereby improving machining accuracy, enhancing the versatility and flexibility of the device, avoiding frequent replacement of positioning pins of different sizes, simplifying the operation process, and improving production efficiency.

The invention provides automatic measuring equipment for a medium-length hole in a mine, and relates to the technical field. Comprising a frame, a plurality of measuring rods and an unwinding device, a limiting device is further arranged at the bottom of the frame, a transfer locking device is arranged between the limiting device and the unwinding device, the transfer locking device comprises a vertically-arranged driving shaft, and a positioning rod is fixed to the side wall of the driving shaft; the tail ends of the positioning rods are provided with positioning assemblies used for grabbing the measuring rods, the positioning assemblies directionally deflect around the driving shaft, the unwinding device comprises an unwinding roller and a rope, the bottom of the unwinding roller is fixedly connected with the first measuring rod, the unwinding roller is located on the deflection path of the positioning assemblies, and the rope is arranged on the unwinding roller. The positioning assembly at least comprises three locking rollers, and the multiple locking rollers are arranged in a C shape. The equipment can achieve automatic sleeving and fixing of the multiple measuring rods, and rapid and efficient measurement of deep holes in mines is achieved.

The utility model discloses a data center power distribution cabinet line connection and arrangement protection device which comprises a box body, a cover plate is installed on the box body, a plurality of wiring elements are arranged in the box body, a plurality of branching plates are fixedly connected to the inner bottom wall of the box body, a plurality of branching grooves are formed in the tops of the branching plates, and insertion rods are slidably connected to the interiors of sliding holes. According to the wire distribution box, after wires are placed in the wire distribution groove and the limiting groove, a user only needs to lift the two hand lifting plates to move relatively and drive the cover plate to rotate to the top of the box body, and then the two hand lifting plates are loosened; the operation is simple, the labor burden of workers is reduced, and the working efficiency is improved.

This invention discloses an automatically disconnecting liquid cooling connector for battery packs, comprising a liquid cooling connector body and a housing plate. A main connector is located on the front side of the liquid cooling connector body, with a raised strip on the outer side of the main connector. A main sleeve is fitted onto the main connector, and a limiting groove is formed on the inner side of the main sleeve. An adjustable limiting component is provided at the end of the raised strip. A spare connector is located on the side of the liquid cooling connector body. Internal branch pipes are located on both sides of the liquid cooling connector body, inside the housing plate. Threaded holes are formed at the bottom of the internal branch pipes, and temperature sensors are inserted into these threaded holes. An easily controllable opening and closing component is provided on the liquid cooling connector body. This invention, by adding a main connector and a spare connector to the liquid cooling connector body, and with the cooperation of the opening and closing component, achieves switching between the openings of the main connector and the spare connector, enabling coolant replacement without machine downtime, which is beneficial for improving product quality and production efficiency.

The utility model relates to the technical field of joint, especially a solar pipe joint structure, its technical scheme includes pipeline, still includes the limiting loop of fixed setting in the both ends of pipeline, the connecting head is movably sleeved in the both ends of pipeline respectively, the fixed loop of fixed sleeve is in the outer wall of pipeline, the fixed loop is slidably provided with the positioning assembly for the limiting of connecting head on, the utility model can realize the limiting fixation to connecting head, effectively offsets the acting force that arc pipeline vibration transmits to connecting head, prevents the loosening of connecting head and pipeline interface.

The utility model discloses a tubular article packaging box lining, and relates to the technical field of packaging, in particular to a tubular article packaging box lining which comprises a lining base body, the lining base body is made of thermoplastic plastic materials, and the lining base body comprises a peripheral supporting part, a plane part and a plurality of limiting parts. The outer edge of the plane part is fixedly connected with the inner side wall of the peripheral supporting part, and a bottom groove is formed between the lower portion of the plane part and the peripheral supporting part. According to the tubular article supporting and fixing device, the ends of tubular articles can be supported and fixed in batches, all the tubular articles are arranged in order, direct contact of all the tubular articles is avoided, damage caused by mutual contact of all the tubular articles is avoided, and the purposes of supporting and fixing the tubular articles and avoiding damage caused by mutual collision of all the tubular articles are achieved.

The utility model discloses an adjustable modularized indoor partition structure, particularly relates to the technical field of indoor partition, and comprises a ground rail and a hanger rail, a screen baffle is arranged between the ground rail and the hanger rail, a lower sliding block and an upper sliding block are respectively connected in the ground rail and the hanger rail in a sliding mode, and the lower sliding block and the upper sliding block are respectively provided with an installation groove. A plurality of extrusion springs are fixedly arranged in the mounting groove, one ends of the extrusion springs are jointly connected with an annular clamping block, a plurality of grooves are formed in the surface of the side, away from the extrusion springs, of the annular clamping block, and a plurality of protrusions connected with the grooves in a clamped mode are fixedly arranged on the upper bottom wall and the lower bottom wall of the screen baffle at equal intervals. Through the arrangement of the structure, the unfolded screen baffle can be rapidly and conveniently limited and fixed, and the situation that when the screen baffle is unfolded for partition, rotation occurs, and the partition effect of the screen baffle is affected is avoided.

The utility model provides a kind of engineering cost field surveying and mapping equipment, including latitude and longitude surveying and mapping instrument, latitude and longitude surveying and mapping instrument is fixedly installed on mounting plate, the bottom of mounting plate is hinged with several movable supports.The utility model has the beneficial effects as follows: when facing rugged use site, the length of adjustable supporting leg is extended from movable support, after length adjustment is completed, rotating knob is driven to rotate guide plate and rotating shaft, rotating shaft will drive rotating member to rotate, rotating member will push connecting rod to horizontal state, then connecting rod pushes clamping block to slide linearly in slide rail, the end of clamping block will be sequentially clamped in the clamping hole on supporting leg and the clamping groove on movable support, so as to lock fixing frame, movable support and supporting leg into one whole, then, push knob to slide on guide plate, so that knob is clamped into knob slot, realize the limit fixing of knob, achieve the purpose of locking mechanism limitation.

The utility model relates to a module transportation binding piece which comprises a first binding piece body, the first binding piece body comprises a first fixing block and an upper pressing plate, a notch is further formed in the bottom face of the side, close to the first fixing block, of the upper pressing plate, and the notch is connected with the bottom face of the upper pressing plate through an arc-shaped face. A chamfer is further formed in the bottom face of the side, away from the first fixing block, of the upper pressing plate. The second binding piece comprises a second fixing block and a side baffle, the second fixing block and the side baffle are rectangular, the long axis direction of the second fixing block is perpendicular to the long axis direction of the side baffle, and the bottom face of the side baffle is higher than the bottom face of the second fixing block. Compared with the prior art, the support binding device has the advantages that the first binding piece is used for limiting the upper side of the support in the vertical direction, the second binding piece is used for limiting the side of the support in the horizontal direction, binding and fixing of the support are jointly achieved in two different directions, and the phenomenon of displacement of the support is avoided.

The utility model discloses a polyferric chloride liquid quantitative filling device, which relates to the technical field of polyferric chloride filling and comprises a support, a conveyor belt is mounted at the upper end of the support, and a controller and a liquid storage tank are mounted on one side of the support. Liquid in the liquid storage box is conveyed into the filling head through a pump and a pipeline, the filling head is installed on the liquid inlet box, an electromagnetic valve and a flow meter are installed on the filling head, a second air cylinder installed at the upper end of the liquid storage box is connected with the upper end of the liquid inlet box, two sets of circular plates are arranged on the filling head, and the circular plates are used for fixing bottles and preventing the liquid from splashing out. An anti-dripping assembly is installed on one side of the conveying belt. The height-adjustable double-circular-plate structure is arranged on the filling head, stable limiting and splash-proof protection of a bottle are achieved through contact between the double-circular-plate structure and a bottle opening, height adjustment and convenient disassembly and assembly are achieved through the sliding connection assembly, and safety, cleanliness and equipment applicability in the filling process are improved.

This application discloses an optical lens curvature radius detection device, including a reading and display mechanism and an image acquisition mechanism. A support frame is fixedly connected to the top of the reading and display mechanism. A sliding sleeve is slidably fitted onto the outer side of the support frame. A support rod is fixedly connected to the right end face of the sliding sleeve. A rectangular hole is opened in the middle of the support rod. A limiting sleeve is slidably fitted onto the outer side of the support rod. Multiple limiting grooves are symmetrically opened on the right end face of the support rod. A connecting frame is fixedly connected to the outer side of the limiting sleeve. A light source is fixedly connected to the end of the connecting frame away from the limiting sleeve. A rectangular groove is opened on the inner wall of the limiting sleeve. A limiting plate is slidably connected inside the rectangular groove. Two limiting blocks are symmetrically fixedly connected to the left end face of the limiting plate. A spring is provided inside the rectangular groove. A connecting plate is slidably inserted into the limiting sleeve. A pressing plate is provided on the outer side of the limiting sleeve. This application facilitates the adjustment of the height of the light source, thereby easily adapting to changes in the height of the lens surface.

The utility model discloses a controller structure for electric vehicles, including a shell, a circuit board and a communication module, wherein the communication module is electrically connected to the circuit board, and further includes an input-output module, a three-phase line connector and a Hall module. The shell is provided with a mounting notch and a limiting hole, the circuit board is arranged in the shell, one end of the three-phase line connector is provided with a plug connector, the other end of the three-phase line connector is provided with a first connecting wire, the first connecting wire penetrates from the mounting notch and is electrically connected to the circuit board, the input-output module penetrates from the mounting notch and is plugged into the circuit board; a fixing plate is provided on the shell, a second connecting wire is provided on the Hall module, the second connecting wire penetrates from the fixing plate and is inserted into the limiting hole, and the second connecting wire is electrically connected to the circuit board. The three-phase line connector improves the simplicity of wiring between the motor and the three-phase AC power supply; the fixing of the wiring harness is achieved by the mounting notch, the shell, the limiting hole and the fixing plate, and the regularity of the wiring is improved.

The utility model provides a travel informatization signpost which comprises a stand column, the bottom end of the stand column is fixedly connected with a fixing base, and the surface of the top end of the stand column is connected with a fixing cylinder in a sleeved mode. The rotary drum is connected to the surface of the fixed drum in a sleeving mode, the side surface of the rotary drum is fixedly connected with an indicating plate, and an indicating board is installed on the surface of the indicating plate; the locking mechanism is mounted on the side surface of the rotary drum, and the locking mechanism is used for fixing the rotary drum; the ejection mechanism is mounted on the side surface of the indication board, and the ejection mechanism is used for ejecting the indication board; and the limiting assembly is installed on the surface of the front side of the indication board, and the limiting assembly is used for limiting the indication board. After the rotary drum rotates around the fixed drum and the indicating angle of the indicating board is adjusted, the rotary drum is limited and fixed through the locking mechanism, stable installation of the indicating board is guaranteed, the adjusting requirement of a worker is met, the operation difficulty is reduced, time is saved, and the practicability of the signpost is improved.

The utility model relates to wireless charging device technical field, concretely relates to a wireless charging device. Wireless charging device includes wireless charging panel and charging wire, and wireless charging panel includes shell, control circuit board and wireless charging module, the side surface of shell is equipped with the line outlet, and control circuit board and wireless charging module are installed in the shell, and wireless charging module is electrically connected with control circuit board, and the electric connection end of charging wire is electrically connected with control circuit board, and is led to the shell outside from the line outlet, in the shell, the line outlet place is provided with the limit card slot, and the limit card block is set up on the electric connection end, and the limit card block is clamped in the limit card slot.

The utility model provides a knapsack shoulder strap hidden type magnetic attraction wireless charging mechanism, which belongs to the technical field of magnetic attraction wireless charging and comprises a knapsack shoulder strap body, the knapsack shoulder strap body comprises shoulder strap filler and shoulder strap cloth, a placement groove is formed in the upper end of the shoulder strap filler, a pre-embedded groove communicated with the placement groove is formed in the shoulder strap filler, and the shoulder strap filler is embedded in the pre-embedded groove. A magnetic attraction wireless charging module is arranged in the placement groove and comprises a shell arranged on the bottom side of the placement groove, an integrated circuit board is arranged on the upper side of the shell, one end of the integrated circuit board is connected with a wire circuit, the wire circuit is embedded in the shoulder strap filler and integrally formed, and a magnet is arranged on the upper side of the integrated circuit board; according to the magnetic attraction wireless charging mechanism, the wrapping performance of the magnetic attraction wireless charging mechanism can be guaranteed, the charging module can be limited and fixed easily, the charging module can be hidden in a backpack shoulder strap, unnecessary damage is avoided, and the magnetic attraction charging effect is guaranteed.

The invention relates to a stator punching sheet structure, which comprises three groups of arc-shaped annular punching sheet bodies and a circle of convex teeth integrally formed on the inner side wall of each group of punching sheet bodies, two radial tangent planes of each group of punching sheet bodies are splicing end surfaces, a dovetail trapezoidal tenon I is integrally formed on one splicing end surface, and a dovetail trapezoidal tenon II is integrally formed on the other splicing end surface. The other splicing end face is provided with a first dovetail trapezoid groove matched with the first dovetail trapezoid tenon. The three sets of punching sheet bodies are spliced into a whole circle through interference fit of the first dovetail trapezoid tenon and the first dovetail trapezoid groove. According to the invention, the three groups of arc-shaped punching sheet bodies are spliced into a complete circular stator structure through the interference fit of the first dovetail trapezoidal tenons and the first dovetail trapezoidal grooves, and fit positioning of the reference pins on the inner walls of the L-shaped arc blocks and the positioning blind holes is matched; and the L-shaped arc blocks are in interference fit with the dovetail trapezoidal grooves II in the side surfaces of the punching sheet bodies through the dovetail trapezoidal tenons II, so that the coaxiality error of the three groups of spliced punching sheet bodies is reduced.

The utility model provides a length-adjustable spliced activated carbon filter element which comprises a shell, movable first activated carbon filter element bodies are symmetrically arranged in the shell, an upper top cover is installed on the tops of the first activated carbon filter element bodies, a second activated carbon filter element body is arranged above the upper top cover, and the second activated carbon filter element body is arranged above the second activated carbon filter element body. A lower top cover is mounted at the bottom end of the second activated carbon filter element body, and the lower top cover is detachably connected with the upper top cover. The novel activated carbon filter element is reasonable in design, splicing of the two activated carbon filter elements is achieved through inserting connection between the inserting blocks and the inserting grooves, limiting and fixing of the second activated carbon filter element body and the first activated carbon filter element body after splicing can be achieved through arrangement and matching of the rubber rings, the extending cylinders, the threaded columns, the connecting rods, the adjusting rods and the threaded grooves, and the service life of the second activated carbon filter element body and the first activated carbon filter element body is prolonged. And the connection firmness is kept.

The utility model discloses a low-voltage switch cabinet. The low-voltage switch cabinet comprises a switch cabinet main body, a cabinet door, a moving assembly and a supporting assembly, according to the utility model, the moving assembly is arranged, the driving motor is utilized to drive the transmission screw rod at the output end of the driving motor to rotate, the transmission screw rod rotates to drive the transmission wheel to rotate, the other group of transmission screw rods are driven to rotate under the transmission of the transmission belt, and the transmission screw rods rotate to drive the screw rod nut to move until the screw rod nut moves to the cabinet door; a user can conveniently install a first installation frame, a second installation frame, electronic components and the like, the user lifts a pull rod, the pull rod drives a first spring to compress and a clamping plate to move, then the first installation frame is placed between the clamping plate and a limiting plate, finally the pull rod is loosened, and clamping of the first installation frame is completed under the action of the first spring; and convenient and fast installation of the first installation frame is achieved, and a user can conveniently install the second installation frame, electronic components and the like in the follow-up process.

The utility model discloses a durability testing machine for a cover cap of an armrest box. The armrest box cover durability testing machine comprises a workbench, the workbench comprises a test bed and a supporting frame, the supporting frame is installed at the upper end of the test bed, the test bed is further provided with a limiting assembly, the limiting assembly comprises a fixing base installed at the upper end of the test bed, a cavity is formed in the fixing base, a positive and negative tooth lead screw is arranged in the cavity, and a screw rod is arranged on the left side and the right side of the cavity; limiting plates are arranged on the positive and negative tooth lead screws in a sleeving mode, a containing cavity is formed between the limiting plates at the two ends, a test assembly is further arranged over the containing cavity and comprises a shaft seat, a hydraulic cylinder is fixedly arranged at the lower end of the shaft seat, and a first test block is arranged at the output end of the hydraulic cylinder. According to the testing machine for the armrest box covers, the limiting assemblies are arranged, so that the armrest box covers of different models can be limited and fixed, the testing machine can adapt to the armrest box covers of different models and sizes, it is ensured that the armrest box covers of various types can be accurately fixed and tested, and the universality of the testing machine is improved.