29results about How to "Improve fastening force" patented technology

The invention belongs to the technical field of oil seal leakproofness test, and particularly relates to a high-low pressure gas spring oil seal leakproofness test box for an automobile suspension system, the high-low pressure gas spring oil seal leakproofness test box comprises a seal test device and a pressure balance system, the seal test device comprises a box body, a partition plate, an upper cover plate, a lower sleeve and a reinforcing mechanism; a box plate is in shaft connection with the upper portion of the box body, a display screen and a plurality of buttons are fixed to one side of the box body, the partition plate is fixedly installed on the inner wall of the box body, the lower sleeve is fixedly installed in the middle of the partition plate, the inner wall of the partition plate is slidably connected with an air pressure plate, an air pressure rod is fixed to the lower portion of the air pressure plate, and a hole is formed in the middle of the partition plate. According to the device, the problems that the test quality is influenced by a gap generated between an oil seal and a simulated gas spring due to the inaccurate simulation environment of the gas spring oil seal during the current oil seal tightness test, and the accuracy of a test result is greatly influenced by looseness caused by the fact that the simulated gas spring cannot be reinforced in the process are solved.

The invention belongs to the technical field of grinding machines, and discloses a rolling grinding machine for machining a crankshaft of a diesel engine, which comprises a main body component comprising a body assembly and a fixing assembly arranged on the body assembly; and the strengthening component comprises a rotating assembly rotationally connected to the interior of the body assembly, a conversion assembly rotationally connected to the body assembly and an output assembly fixedly connected to the exterior of the conversion assembly. A grinding wheel is placed on the fixing assembly, then the body assembly is pushed to move relatively, and under the action of the conversion assembly, the grinding wheel is fixed to the body assembly; the sliding acting force is converted into the rotating acting force, the rotating acting force is transmitted to the output assembly, at the moment, the output assembly slides along the track of the body assembly and drives the rotating assembly to rotate at the same time, and due to the fact that the rotating assembly clamps the fixing assembly in the initial state, the rotating assembly does not rotate in the rotating process. And the fixing assembly is driven to fasten the grinding wheel, so that the purpose of uniformly fastening the flange plate can be achieved.

The utility model relates to a supporting and fixing structure for a dust removal filter bag, and belongs to the technical field of dust removal filter bags. Comprising two fixing seat plates which are of a circular ring structure and are coaxially arranged, a plurality of supporting rods are arranged between the fixing seat plates, and inserting pressing plate seats are arranged on the fixing seat plates. The dust removal filter bag has the beneficial effects that the dust removal filter bag is supported by the plurality of supporting rods during use so as to prevent the dust removal effect of the dust removal filter bag from being influenced by the flat bag of the dust removal filter bag during use, the dust removal filter bag is pressed on the fixed base by inserting the pressing plate seat, and the bag opening of the dust removal filter bag is folded for multiple times, so that the dust removal effect is improved. According to the utility model, the contact surfaces between the bag mouth and the fixed seat plate and between the bag mouth and the inserted pressing plate seat are increased, so that the friction force is increased, the problem that the existing dust removal filter bag is easily slid due to small friction force caused by single-layer fixation of a hoop is solved, and the problem that the existing dust removal filter bag is difficult to replace due to gluing is solved, and the dust removal filter bag is novel in structure and convenient to operate.

The present invention proposes a wiring structure for pressure-bearing equipment, including a pressure-bearing equipment housing, a protective cover, a terminal, a power cord, a cover plate and a terminal connection plate. The cover plate is sealed on the protective cover and connected with the protective cover to form a protective box with a wiring cavity inside; the protective cover is welded to the outer wall of the pressure-bearing equipment housing, and the terminal connection plate is arranged in the protective cover, with its back abutting against the bottom of the protective cover, and the terminal connection position thereon is arranged one-to-one with the external connector of the terminal and the power cord connector of the power cord; the power cord connector of the power cord, the external connector of the terminal and the terminal connection plate are fastened and connected by terminal bolts, power cord connector perforations, external connector perforations of the terminal and the mounting holes of the terminal connection plate. The present invention has a simple structure and is easy to produce. It not only meets the high reliability requirements of waterproof, dustproof and electric shock proof, but also is suitable for use in relatively harsh environments, greatly prolonging the service life of the core components of the pressure-bearing equipment and improving the stable operation time of the pressure-bearing equipment.

The invention discloses a multifunctional pipe wrench, and relates to the technical field of pipe wrenches. Comprising a fixed plier handle, a fixed plier head is fixedly installed at the end of the fixed plier handle, a movable plier groove is formed in the fixed plier head, an adjusting bolt is rotationally installed in the movable plier groove, and a movable plier head is movably installed on the upper end face of the fixed plier head; a fastening assembly is arranged on the fixed tong head and the movable tong head, a driving assembly is arranged on the fixed tong handle, a positioning assembly is arranged on the driving assembly, clamping force between the pipe tong and a pipeline is enhanced through cooperation of the fastening assembly and the positioning assembly, and the fastening assembly comprises a positioning wheel rotationally installed on the movable tong head. And the positioning wheel is fixedly connected with a fastening chain. According to the pipe wrench, through cooperative use of the fastening assembly, the driving assembly and the positioning assembly, the fastening force between the pipe wrench and a pipeline is ensured, the more uniform and stable fastening effect on the pipeline is achieved, and meanwhile the working efficiency and safety are improved.

The application discloses a kind of double locking structure cable joint, including connecting body, the upper end of the connecting body is equipped with compression nut, lower end is equipped with joint body, the compression nut and joint body are all with connecting body screw thread cooperation, the connecting body is equipped with nylon compression ring with compression nut piece, the nylon compression ring adopts plastic material, the opening is opened on the nylon compression ring, the gecko tail piece is equipped with in both ends of the opening, the gecko tail piece is equipped with multiple V-shaped mouths, the inner side of the compression nut and joint body is all inclined surface arrangement, and it is matched with the nylon compression ring the upper end of the compression nut is equipped with connecting lug, the connecting lug is equipped with fixed peg, the thread of the fixed peg both ends is oppositely arranged, the adjusting ring is equipped with in both ends of the connecting lug, the fixed peg is matched with adjusting ring, the adjusting ring is equipped with locking peg, the inner side of the adjusting ring is equipped with locking ring, locking ring is matched with locking peg, the equipment is better to cable fastening, improve waterproof effect.

According to the technical scheme, the side air bag of the automobile is characterized by comprising an air generator, an air outlet of the air generator is communicated with an air bag assembly, the air bag assembly comprises a Z-shaped folded air bag body, a switching support is fixed to the outer wall of the air generator, and a U-shaped flow deflector is fixed to the air outlet end of the air generator in a semi-surrounding mode. An opening of the U-shaped flow deflector faces the sealing end of the air bag, the sealing end is the end away from the gas generator, two compression belts are fixed to the two sides of the air bag in a knitted mode, the compression belts press the Z-shaped folding lines of the air bag, and the two compression belts are symmetrically arranged on the two sides of the air bag; one end of the compression belt fixes the inflation end of the air bag, the other end of the compression belt is fixed to the sealing end of the air bag, the air bag folded in the Z shape enables the expansion route of the air bag to be closer to a straight line, the probability that the shoulder of a user is impacted when the side air bag of the front seat is opened is reduced, and the using safety performance of the side air bag is improved.

The utility model discloses an inner glue injection type stability augmentation anchoring part sleeve which comprises a sleeve body, an inner clamping ring and an outer clamping piece. A plurality of expansion notches are formed in one end of the pipe body and evenly distributed in the circumferential direction of the pipe body. The inner clamping ring is fixedly arranged on the inner wall of the pipe body, the size of the end, connected to the pipe body, of the inner clamping ring is larger than that of the other end of the inner clamping ring, and a plurality of through notches are formed in the inner clamping ring and evenly distributed around the axis of the pipe body. A plurality of outer clamping pieces are fixedly arranged on the outer wall of the pipe body, the outer clamping pieces are evenly distributed around the axis of the pipe body, and through notches are formed in the positions, corresponding to the outer clamping pieces, of the pipe body. The inner clamping ring with the through notch is arranged on the inner wall of the pipe body, after glue injection, glue liquid can promote deformation of the inner clamping ring to improve the fastening effect, the inner clamping ring is located in solidified glue, the combination effect of the inner structure and the outer structure is effectively guaranteed, and the fastening force is improved.

The utility model discloses a drying device for decorative paper printing, and belongs to the technical field of paper production. A transmission mechanism; the drying mechanism comprises an air heater, the air heater is fixedly installed on the supporting part, the air heater is provided with an output end, and the output end extends into the drying cavity; a guide member; the telescopic pipe is arranged on the guide part, and one end of the telescopic pipe is fixedly connected with the output end of the air heater; and the air outlet pipe is connected with the other end of the telescopic pipe, the air outlet pipe is suitable for moving in the direction where the guide part is arranged, when the decorative paper needs to be dried, the air outlet pipe slides along the guide part, the air outlet position is changed, and drying of different positions of the decorative paper can be achieved. When the technical scheme is implemented, the guide part is arranged, and the air outlet pipe is arranged in the guide part, so that different positions of the decorative paper can be dried by moving the position of the air outlet pipe when the decorative paper is dried, and the drying efficiency is improved.

The utility model relates to the technical field of portal cranes, and discloses an adjustable windproof locking device of a portal crane, which comprises a mounting frame, and an adjusting locking component is arranged on the lower surface of the mounting frame; the adjusting and locking assembly comprises two lifting rods, the two lifting rods are fixedly connected to the lower surface of the mounting frame, a mounting box is slidably connected to the outer portions of the lifting rods, a gear ring is rotatably connected to one side of the mounting box, a threaded groove is formed in the inner wall of the gear ring, and a first stepping motor is fixedly mounted on one side of the mounting box. Through cooperative arrangement of the adjusting and locking assembly and the supporting assembly, a multi-dimensional windproof locking function is provided for the portal crane, the contact and clamping area with a track is enlarged through the two clamping plates, extrusion force is applied to a bottom cross beam of the portal crane under the cooperative effect of the pressing plate and the non-slip mat, fastening connection between the bottom cross beam and the track is enhanced, and the safety of the portal crane is improved. In addition, the supporting rods rotate and abut against the ground on the two sides of the track, and extra supporting force is provided for the device.

The utility model discloses a multifunctional oven, it includes external connection baking tray subassembly, adjustable assembly and support component, the bottom of external connection baking tray subassembly is installed with adjustable assembly, and the bottom of adjustable assembly is installed with support component, external connection baking tray subassembly includes sealed heat insulating ring, sliding slot, heat insulating sealing board, pull buckle, support ring and baking tray body, the inside of sealed heat insulating ring is seted up with sliding slot, and the inside sliding connection of sliding slot has heat insulating sealing board, and the end of heat insulating sealing board is fixedly connected with pull buckle, a top of sliding slot is provided with support ring, and the outer wall of support ring is fixedly connected with baking tray body. The sealing effect of heat insulating sealing board in this embodiment, the heat is better locked in the oven, and hot air can be fully circulated in the oven, so that food is evenly heated in each part, not only improves the cooking efficiency, but also can ensure that food is baked with uniform luster, excellent taste quality, gives full play to the function and performance advantage of oven.

The invention provides an opening self-reducing automobile damping framework, and relates to the technical field of automobile suspensions, the opening self-reducing automobile damping framework comprises an inner pipe, at least one reducing opening is formed in the pipe wall of the inner pipe in the axial direction in a penetrating mode, and the reducing opening is configured in the mode that when the inner pipe is pressed to be installed in an installation hole and closed, radial shrinkage is formed; and the outer rubber layer is adhered to the periphery of the inner pipe. A dynamic and self-adaptive multi-stage composite locking structure is constructed, the long-term anti-loosening problem is fundamentally solved, the multi-stage composite locking structure converts single assembly press-in force into two-stage ordered mechanical response, the inner pipe shrinks to drive the groove wall of the gap groove to form herringbone-like expansion, and therefore the anti-loosening effect is achieved. An active pinching effect is generated by utilizing the rebound trend of the inner pipe, instant anti-torsion and anti-movement capacities are provided, and the expansion extrudes the adjacent rubber elastomer units at the same time to force the rectangular cavities in the rubber elastomer units to generate radial outward expansion deformation, so that large-area, uniform and continuous abutting pressure is formed.

Embodiments of the present invention disclose a recess structure for reinforcing a connection between a sleeper and a track bed (10), the recess structure being used in a ballastless track to reinforce the connection between a prefabricated sleeper unit and a subsequently-placed track bed (10). A reinforcing member (3) is provided at one or more sidewalls in a transverse direction of the sleeper, that is, in a longitudinal direction of the track. The reinforcing member (3) is a recess recessed inward from the sidewalls of the sleeper, such that during a pouring and placing process of the track bed (10), the recess and a certain height of the sleeper are buried in concrete of the track bed (10) and integrated with the same by means of concrete pouring, the concrete directly filling the recess so as to reinforce the connection between the sleeper and the track bed (10).

The invention belongs to the technical field of safety test equipment, and discloses an electrical equipment safety test device, which comprises a high-voltage clamp, and further comprises a connecting piece movably arranged on the outer side of the hinged position of the high-voltage clamp in a sleeving manner; the movable assembly is mounted on the outer side of the high-voltage clamp and abuts against the connecting piece; the pulling assembly is fixedly connected with the connecting piece, and the outer wall of the pulling assembly is sleeved with a limiting assembly located on the outer side of the high-voltage clamp; the connecting piece comprises an extrusion frame and a rotating shaft. Through cooperation of structures such as the arc plate and the abutting rod, it is guaranteed that a tested electrical equipment wire is located in the center area of the jaw all the time, the straight gear is driven to rotate through the arc toothed plate, and the abutting rod is driven to turn downwards in the inner walls of the first clamp rod and the second clamp rod while the straight gear rotates; the two abutting rods abut against the wire downwards in a crossed mode, so that it is guaranteed that the wire is located in the middle area of the first clamp rod and the second clamp rod, and the subsequent testing effect on electrical equipment is improved.

The utility model relates to the field of conversion valves and discloses a water leakage prevention conversion valve which comprises a metal valve shell, a valve element is rotationally arranged in the metal valve shell, a hydraulic motor is fixedly installed on the top of the metal valve shell, a liquid inlet pipe is welded to the top of one end of the outer wall of the metal valve shell, and the other end of the liquid inlet pipe is in threaded connection with a liquid inlet sleeve. Two liquid outlet pipes are welded to the two sides of the middle of the outer wall of the metal valve shell, the other ends of the liquid outlet pipes are in threaded connection with liquid outlet sleeves, a pressure reducing pipe is arranged at the other end outside the metal valve shell, and a rotating shaft pipe is welded to the top of the metal valve shell. According to the water-leakage-proof conversion valve, connection points can be fastened without water leakage, and hydraulic pressure in the conversion valve can be balanced in a self-adaptive mode.

The invention provides a highway bridge construction supporting device which comprises a supporting frame, a connecting frame and a supporting plate are arranged on the supporting frame, the connecting frame is movably connected with the supporting plate, two blade coating assemblies are arranged in the supporting plate, a driving assembly is arranged in the supporting frame, and the driving assembly is used for driving the connecting frame to ascend and descend. The driving assembly synchronously drives the two blade coating assemblies to move in a reciprocating mode, stabilizing assemblies are further arranged on the opposite sides of the supporting plates, and in the forward rotation process of first threaded rods, limiting balls arranged on positioning strips can move upwards in threaded grooves till the limiting balls move to the terminal positions of the threaded grooves; and when the first threaded rod rotates, the limiting ball can enter the rotating groove, the first threaded rod rotates without driving the fixed cylinder to move upwards, and the limiting ball can continuously rotate in the rotating groove, so that even if the fixed cylinder moves out of the threaded groove, the operation stability of the equipment can be ensured, and the abrasion of the equipment is relieved.

The application relates to the technical field of cutting robots and discloses an industrial cutting robot, which comprises a main body assembly, a base, a mechanical arm arranged on the base, a mechanical head arranged on the mechanical arm, a mounting seat fixed on one side of the mechanical head through screws, a cutting head arranged at the bottom of the mounting seat, a fixing assembly arranged on the mounting seat and comprising a locking piece, the locking piece comprising a fixed frame fixed to the outer side of the mounting seat and a supporting sleeve fixed to one side of the fixed frame. The fixing assembly is arranged to fix the cutting head, the cutting head can be conveniently disassembled and maintained, the protective assembly is arranged to protect the cutting head, the cutting head is prevented from being damaged when colliding with a workpiece, and when the protective assembly is impacted, the fixing force of the fixing assembly on the cutting head can be increased, so that the cutting head is prevented from falling off.

This utility model provides a pipe positioning clamp with scale markings, belonging to the field of pipe positioning clamp technology. The utility model includes a threaded rod rotatably connected between the inner walls of the vertical ends of two U-shaped support frames. A rotating wheel is fixedly installed on the outer surface of the threaded rod. A sliding rod is fixedly installed between the inner walls of the vertical ends of the two U-shaped support frames. Two sliding plates are threadedly connected to the surface of the threaded rod. A vertical plate is fixedly installed on one side of the sliding plate. A first clamping ring is fixedly installed at the end of the rod away from the vertical plate. A second clamping ring is slidably connected to the outer surface of the rod. This utility model, through the marking device, allows the sliding plates to move smoothly along the sliding rod by the cooperation of the threaded rod and the reverse thread, simultaneously adjusting the positions of the clamping rings on both sides. Combined with the scale lines on the U-shaped support frame, the pipe spacing can be read intuitively, eliminating the need for repeated measurements with a tape measure and greatly simplifying the adjustment process.

The invention relates to the field of industrial ventilation equipment, and discloses a high-sealing noise reduction type anti-explosion vortex fan which comprises a driving pump, one side of the driving pump is fixedly connected with a sealing air cavity shell, a driving shaft of the driving pump extends into an inner cavity of the sealing air cavity shell to be fixedly connected with an impeller, and the top of the driving pump is fixedly connected with a power connector. The driving pump is electrically connected with the power connector, air outlet cavities are fixedly connected to the lower ends of the two sides of the driving pump, one ends of the two air outlet cavities are fixedly connected to the lower end of the side face of the sealed air cavity shell, sealed connecting devices are arranged on the other sides of the two air outlet cavities, and a noise reduction base is fixedly connected to the bottom of the driving pump; according to the anti-explosion vortex fan, through the combined design of the combination of the composite bolts and the gaskets and the combined design of the insertion rods, the fixing stability and the fastening force are enhanced, the connection is simplified through the sealing connection devices, the sealing performance is improved, and the safety of personnel and the environment is guaranteed.

The invention discloses a cable joint with a double-locking structure, which comprises a connecting body, a compression nut is arranged at the upper end of the connecting body, a joint body is arranged at the lower end of the connecting body, the compression nut and the joint body are both in threaded fit with the connecting body, the connecting body and the compression nut are provided with nylon compression rings, the nylon compression rings are made of plastic materials, and the nylon compression rings are made of plastic materials. An opening is formed in the nylon compression ring, gecko tail pieces are arranged at the two ends of the opening, a plurality of V-shaped openings are formed in the gecko tail pieces, the inner side of the compression nut and the inner side of the connector body are inclined planes, the compression nut and the inner side of the connector body are matched with the nylon compression ring, a connecting lug is arranged at the upper end of the compression nut, and a fixing bolt is arranged on the connecting lug. Threads at the two ends of the fixing bolt are oppositely arranged, adjusting rings are arranged at the two ends of the connecting lug, the fixing bolt is matched with the adjusting rings, locking bolts are arranged on the adjusting rings, locking rings are arranged on the inner sides of the adjusting rings, and the locking rings are matched with the locking bolts. The equipment is better in cable fastening, and the waterproof effect is improved.

The utility model discloses a strong anti-interference communication line based on magnetic isolation, which comprises a cable and a protective layer arranged on the outer surface wall of the cable, and a reinforcing net is arranged in the protective layer. The reinforcing net comprises a plurality of reinforcing rings which are fixedly mounted in the protective layer and are distributed in a linear array; according to the utility model, through the arrangement of the reinforcing net, the connecting rods, the reinforcing rings and the reinforcing ribs, the cable can be firmer, and the bending resistance and the tensile resistance of the cable are improved, so that the cable is ensured not to be easily damaged by external force during use, the service life of the cable is prolonged, and through the design of the connecting rods, the clamping ring plates, the supporting ring plates and other components, the cable is more stable. According to the utility model, the guide port is arranged on the connecting rod, so that cables can be arranged more regularly and are not easy to be disordered, the attractiveness and the neatness of cable arrangement are improved, and the rubber cap on the connecting rod can increase the fastening force between the connecting rod and the guide port, so that the connection is firmer and the loosening or falling condition is not easy to occur.

The utility model provides a blind hole boring cutter beneficial to chip removal belongs to cutting tool technical field, including the tool holder upper end setting of tool joint, the tool holder upper end symmetry setting of tool holder, is provided with a tool groove on every tool holder, tool holder and tool holder slidingly arranged, every tool groove is detachably provided with a first blade, the left and right sides of tool holder upper half are provided with a side row groove respectively, the front side of tool holder upper half is provided with front row groove, the utility model discloses through the installation of tool joint on lathe, can make cutting chip from tool side discharge through the reverse circular arc of side row groove when cutting, make cutting chip from tool bottom discharge through the fillet of front row groove, thereby prevent the clogging of tool chip, through the loosening of location bolt and make tool holder move in radial direction, thereby the adjustment of tool is convenient, the reference scale line adjustment boring size, can carry out boring processing after the tightening of bolt after size adjustment, thereby the adjustment of tool is convenient.

The utility model provides a kind of multifunctional fan, comprising: base, base upper nest installation has connecting rod, connecting rod upper thread connection has fan head.This kind of multifunctional fan, by being provided with bolt two, connecting rod, connecting seat and fixed end two and the like structure, bolt two cooperate with antiskid line, ensure that it is easy and convenient to operate when disassembling and assembling, and effectively prevent component loosening;Connecting rod is as core connecting component, both support the height of vertical fan, and can be combined with connecting seat;Connecting seat and fixed end two are fastened by bolt, can be quickly installed on wall surface, convert fan from vertical into wall-hanging type, adapt to multiple scenes such as bedroom, kitchen and the like, these structures cooperate with each other, not only meet the demand of different use mode of user, also enhance fan overall stability by reliable connection design, greatly improve the practicability and durability of product.

The utility model provides a rock drill opening device belongs to rock drill opening device technical field, including the blow shaft and the drill rod, the blow shaft's front end integral moulding has the adapter rear end, the drill rod's rear end is installed with the adapter front end, be equipped with fastening parts between the adapter rear end and the adapter front end. The utility model solves the problem of the prior art under high frequency vibration, easy to loosen, power transmission interruption, the taper surface will be directly contacted and easy to wear, resulting in the problem of the matching precision decline, the utility model provides a rock drill opening device, realizes the contact area increase, is not easy to loosen, and greatly reduces the problem of wear and tear.

The utility model relates to the technical field of cable bridges, and provides a high-voltage power cable laying bridge which comprises a first supporting frame and a second supporting frame, the top end of the first supporting frame is provided with the second supporting frame, and the two sides of the interior of the second supporting frame are each provided with an installation structure. A fixing plate is arranged at the top end of the second supporting frame on one side of the mounting structure, protruding blocks are fixed to the two ends of one side of the fixing plate, and an adjusting structure is fixed to the other side of the fixing plate. By arranging the adjusting structure, the limiting pin and the reset plate form a telescopic structure through the reset spring by pressing the rotating plate, the limiting pin can be inserted into the slot and the through hole of the insertion plate under the elastic action of the reset spring, and the limiting pin forms a clamping structure in the through hole by rotating the nut. The cables in the bridge are separated by adjusting the distance between the partition plates, the gap distance between the cables can be controlled, and the cables are prevented from intersecting with one another.

The utility model discloses a plug-in anti-falling flange, which relates to the technical field of flanges and comprises a first flange plate, a second flange plate and a plug-in anti-falling flange, the second flange plate is arranged at the bottom end of the first flange plate; the inserting assembly is arranged in the middle of the first flange plate and the second flange plate and used for achieving inserting connection of the first flange plate and the second flange plate; the fixing assembly penetrates through the first flange plate and the second flange plate and is used for achieving fixed connection of the first flange plate and the second flange plate. According to the utility model, through the arrangement of the plug-in assembly, preliminary butt joint between the flange plates can be realized, so that not only is the installation efficiency improved, but also accurate centering is facilitated, and misalignment of sealing surfaces caused by installation deviation is avoided, thereby reducing the risk of medium leakage.

The invention discloses an electric vehicle charging pile with a connector suspension device, and relates to the technical field of electric vehicle charging piles, the electric vehicle charging pile comprises a base piece, a protective shell and a shielding protective plate, the protective shell is fixedly connected to the top of the base piece, the shielding protective plate is fixedly connected to the side wall of the protective shell, and an electric gun jack piece is fixedly connected to the top of the inner cavity wall of the protective shell; the first assembly and the second assembly are arranged in the protective shell, and the triangular channel is designed into two inclined grooves and one vertical groove, so that the first assembly for fastening the electric gun plug can be indirectly moved from the outside of the protective shell to the inside of the protective shell, and under the action of the vertical groove of the triangular channel, the electric gun plug can be tightly fixed on the first assembly. In addition, the electric gun plug can be automatically aligned with the electric gun jack piece during storage, it can be guaranteed that the electric gun plug is aligned with the electric gun jack piece, vertical plugging action is carried out, the situation that the electric gun plug collides with or scrapes a socket of the electric gun jack piece, and the equipment structure is damaged can be effectively avoided, and the plugging completeness during storage is improved.

The application relates to the field of circuit breakers, in particular to a 40.5kV looped network large-current circuit breaker which comprises a body and a mounting assembly, the mounting assembly comprises a pressing strip, a sliding rod, an elastic piece one and a plurality of fixing bolts, a plurality of fixing holes are arranged on the surface of the body at intervals, a sliding channel is arranged on the surface of the body, the end, away from the sliding channel, of the sliding rod is connected to the surface of the pressing strip, one end, in the elastic force direction, of the elastic piece one is connected to the inner wall of the sliding channel, and the other end, in the elastic force direction, of the elastic piece one is connected to the rod surface of the sliding rod. In the application, the pressing strip, the sliding rod, the elastic piece one and the fixing bolts are arranged, the fixing bolts are not easily affected by the vibration of the power grid to produce a small relative motion, the limiting stability of the fixing bolts in the fixing holes is guaranteed, the fastening force between the looped network large-current circuit breaker and the wall surface is improved, and therefore the safety in use of the looped network large-current circuit breaker is improved.

The present invention discloses an electric tool, comprising a housing, a motor located in the housing, and a clutch assembly driven by the motor; the clutch assembly comprises an intermediate shaft, an elastic member and a clutch block sleeved on the intermediate shaft, one end of the elastic member is supported on the intermediate shaft, and the other end is supported on the clutch block; the clutch block comprises a friction plate, a nut, and a gear, the motor drives the gear to rotate, one end of the nut is supported on one side of the gear, and the other end passes through the gear and is clamped on the friction plate, the nut is threadedly connected to the intermediate shaft and drives the friction plate to be pressed on the elastic member. The arrangement of passing the nut in the clutch block through the gear not only ensures that the nut and the intermediate shaft have a stable thread engagement length, but also shortens the overall length of the clutch assembly, which is conducive to the miniaturization of the electric tool.