15results about How to "Fasten the connection" patented technology

This application provides an arc-blocking device and a circuit breaker, belonging to the field of electrical equipment technology. In this arc-blocking device, one end of an elastic element is connected to the circuit breaker housing, and the other end is connected to an arc-blocking element, which is located on the movement trajectory of the circuit breaker's moving contact. When the moving and stationary contacts of the circuit breaker are in contact, the arc-blocking element is located on the side of the moving contact facing away from the stationary contact. During the separation process of the moving and stationary contacts, the moving contact pushes against the first side of the arc-blocking element, causing the arc-blocking element to drive the elastic element to bend and deform in the first direction until the moving contact slips off from the first side. Then, under the elastic force of the elastic element, the arc-blocking element moves in the second direction to between the moving and stationary contacts, thereby forcibly cutting off the arc generated when the moving and stationary contacts separate. It has good breaking capacity and can effectively improve the arc-extinguishing capability of the circuit breaker. Furthermore, the arc-blocking device provided in this embodiment has a simple structure, is easy to assemble, operates reliably, and has a certain degree of universality.

The utility model relates to a kind of CPU radiator of grid light emission, including heat dissipation main body, heat dissipation fan, optical assembly and wire rod, heat dissipation fan includes fan blade and fan shell, the inside of fan shell is installation area, the bottom of installation area is equipped with mounting seat, fan blade is set in installation area, and is connected with mounting seat;Optical assembly includes light emitting piece, light emitting piece is attached to the outer surface of fan shell, light emitting piece is used to provide light source;Wire rod is set in the outer surface of heat dissipation main body, for heat dissipation fan and optical assembly transport electric energy.The utility model is set by optical assembly, so that radiator presents the effect of aperture and grid light emission;Heat dissipation fan is connected by thread heat dissipation main body, annular mounting portion on fan shell is abutted on light guide inner shell, the bottom edge of light guide outer shell is clamped in clamping groove, so that the connection between optical assembly and heat dissipation main body, heat dissipation fan is more fastened, simultaneously, detachable connection also facilitates the maintenance of radiator.

This invention provides a cotton field sprayer based on drip irrigation technology, comprising a drip irrigation system including a main pipe, branch pipes, a return pipe, and a water tank. The main pipe and return pipe are connected by several sets of branch pipes. Several sets of connectors are provided on the outside of the branch pipes. A spraying component is fixedly connected to one end of each connector. The main pipe is connected to the outlet of the water tank, and the return pipe is connected to the inlet of the water tank. Each connector includes a connecting pipe with a positioning hole at one end and a sealing groove on the outside. Several sets of arc-shaped protrusions are fixedly connected to the upper part of the positioning hole. By fixing connectors on the branch pipes and connecting the spraying components through the connectors, this invention allows the pesticide to be delivered inside the cotton field based on the drip irrigation system and then sprayed onto the cotton plants through the spraying components. This effectively reduces the labor intensity of cotton field spraying and, to a certain extent, reduces the cost of cotton field spraying.

The utility model discloses a paint spraying gun with safe splash-proof function, including gun body subassembly, set up the spray head subassembly of the front top of gun body subassembly, the paint storage box of screw thread connection in the bottom front side of gun body subassembly, the surface fixed connection with spray head subassembly is fixedly connected with all -round splash -proof mechanism in the front of gun body subassembly, all -round splash -proof mechanism includes rectangular block, the front of rectangular block is provided with the sheltering round cover, the top and bottom of sheltering round cover all are fixedly connected with vertical block, the top and bottom of rectangular block all are through bearing transverse swing joint with positive and negative toothed rod, the inner side screw thread connection of positive and negative toothed rod surface has the screw bushing. The utility model discloses paint spraying gun has changed the phenomenon that only the upper and lower ends can be splash -proofed in traditional, has adopted the sheltering round cover and carries out all -round splash -proof treatment, will not lead to the splash of the paint rebound of construction personnel, also will not influence the construction environment comfort of construction personnel.

This utility model discloses a wall painting device for building construction, including a frame, a liquid tank assembly slidably connected to the inner side of the frame, and a painting component connected to the front of the liquid tank assembly. Liquid receiving mechanisms are fixedly connected to the top of both sides of the frame. Each liquid receiving mechanism includes two synchronous motors, with a screw fixedly connected to the output end of each synchronous motor. A threaded sleeve is threaded to the bottom of the screw surface, and a slider is fixedly connected to the inner side of the threaded sleeve. The inner side of the slider is slidably connected to the frame. An extension block is fixedly connected to the front of the threaded sleeve, and a bend plate is fixedly connected to the inner side of the extension block. This utility model wall painting device changes the traditional phenomenon of paint dripping directly onto the ground by using a liquid receiving bend plate to catch the paint, avoiding direct contact between the paint and the ground, reducing resource waste, and improving the environmental friendliness of the wall painting process.

The utility model discloses a material tray for sterilization cabinet, including disc body subassembly, the vent hole of top being set up in disc body subassembly, the inside of disc body subassembly is provided with porosity adjusting mechanism, the porosity adjusting mechanism includes adjusting plate, the top of adjusting plate is provided with adjusting hole, the front of adjusting plate is fixedly connected with connecting plate, both sides of connecting plate front are all fixedly connected with L type board, the outside of L type board is fixedly connected with strip rod, the front of L type board is fixedly connected with handle, the top of strip rod is fixedly connected with positioning mechanism, the positioning mechanism includes male rod no.

The utility model relates to the technical field of generator, and disclose a kind of wiring terminal applied to generator temperature element lead-out wire, including fixed structure, the outer wall of fixed structure is connected with assembly structure, the inside of assembly structure top is clamped with fastening structure, the fixed structure includes fixed wallboard, the inside of fixed wallboard is installed with bolt, the top of bolt outer wall is equipped with wire slot, the assembly structure includes nut, by simplifying installation into two-step operation of "thread connection+clamping pressing".First, the basic assembly is completed by the thread rotation of nut and bolt, then press down the pressing cylinder after inserting the wire end into the placement hole, fastening can be realized;When disassembling, only need to press down the pressing ring, the clamping block can be separated from the snap ring without additional tool assistance.This design greatly shortens the installation time, significantly reduces the operation difficulty, even non-professionals can quickly get started, effectively improves the efficiency and convenience of wiring work.

The utility model discloses a kind of special coupling tool for aviation magneto test, comprising: bearing frame body, the bearing frame body is assembled on test bench, transmission shaft body is provided in the bearing frame body, transmission shaft body one end is connected with test motor output end, transmission shaft body setting in the bearing frame body is connected concentrically with magneto by connecting assembly, the connecting assembly includes shaft coupling body, transmission shaft butt joint groove is opened in the shaft coupling body, transmission shaft butt joint groove is connected with transmission shaft body butt joint. The special coupling tool for aviation magneto test can make the shaft coupling body in the magneto mounting seat body shell. Even if the shaft coupling falls off in extreme cases, it can also prevent the shaft coupling from flying out, avoid causing other injuries, and the shaft coupling is made of stainless steel, which is a hard connection. It can effectively prevent deformation and vibration during high-speed operation, improving the practicality and safety of the device.

The utility model discloses a lithium battery quick -witted interface suitable for logistics car, including installation panel, installation panel front side is provided with quick -witted interface, installation panel front side four corners all are provided with fixed screw, quick -witted interface front side is provided with the charging gun who is compatible with it, still be provided with between the installation panel and charging gun limit mechanism, the limit mechanism includes the L shape board at quick -witted interface top, the one end fixedly connected with pivot of L shape board close to installation panel, both ends of pivot all are connected with the side plate that rotates, through having designed installation panel, quick -witted interface, fixed screw, charging gun, limit mechanism, make quick -witted interface when using, the connection between charging gun and quick -witted interface is more fastening, will not because of the pulling of external force, lead to charging gun easily from quick -witted interface inside drop, make the connection between charging gun and quick -witted interface more stable, have guaranteed the quality of charging is better, and the whole structure is simple, and the practicality is strong.

The utility model discloses a ladder type PTFE sealing element structure, including the shell of setting up the pivot piece still including the main seal of setting up in the outer side of pivot piece and the inner ring is provided with the lip, is equipped with the strip hole of symmetrical arrangement on the side wall of main seal, still including the vice seal of sticking to the side wall of main seal, the ring strip of inserting in the strip hole is fixedly installed on the vice seal, is equipped with the air cavity in main seal. The ladder type PTFE sealing element structure provided by the utility model increases the main seal and vice seal connection contact surface and friction force through the ring strip of rubber material quality, makes two not easy to slip off through temperature difference change, reduces the generation of gap, and the air cavity is accompanied by the pressure of cavity edge to strip hole position in the heating process and makes the connection more fastening, simultaneously accompanied by the lip far away from pivot piece side wall far away, the purpose is that the contact surface between rubber deformation and pivot piece can be reduced under high temperature environment, reduces the abrasion of pivot piece to main seal, improves ladder type PTFE sealing element use efficiency.

The utility model relates to the technical field of building construction discloses a connecting device for fixing first and second connecting pieces, comprising: a connecting piece arranged on the first connecting piece, the connecting piece being spaced apart from the second connecting piece; a first fixing piece fixed to the connecting piece; a second fixing piece fixed to the second connecting piece; and a fastener fixedly connected between the first and second fixing pieces. The utility model can improve the connection reliability between the first and second connecting pieces by first arranging the second connecting piece on the first connecting piece and then fixedly connecting them. The first and second fixing pieces can be fixedly connected by the fastener, which can reduce on-site operations, improve construction efficiency, reduce costs, avoid damaging the first or second connecting piece, and adapt to the connection of different types of first and second connecting pieces.

The utility model relates to epoxy glass steel pipe technical field discloses an adjustable epoxy glass steel pipeline, including fixed ring, the inside fixed connection of one side of fixed ring has first epoxy glass steel pipe, one end of first epoxy glass steel pipe is provided with second epoxy glass steel pipe, one side outside fixed connection of second epoxy glass steel pipe has support ring, the inside screw thread connection of one side of support ring has screw, one side outside screw thread connection of screw has nut, the inside of one side of fixed ring is provided with locking assembly, locking assembly includes support rod, the inside of one side of support rod outside rotation connection in one side of fixed ring. In the utility model, through the eccentric wheel and connecting rod rotation of rotation support rod drive, realize the purpose that third epoxy glass steel pipe telescopes finally, when pipeline installation, if there is tiny size deviation, allow pipeline to carry out telescopic adjustment, reduce installation accuracy requirement, reduce the stress because of forced installation leads to.

This invention discloses a vehicle side panel interior trim panel with a reinforcing mechanism and its production apparatus. The side panel interior trim panel includes a door frame, a first connecting plate, and a second connecting plate. The first connecting plate is provided with a guide for seat belt steering, a reinforcing structure, and a locking button for fastening the guide. The reinforcing structure includes: a fixing plate, which is fitted and fastened to one side of the guide; an upper baffle, which is fastened to the first connecting plate for fixing one end of the guide; a lower baffle, which is located at the other end of the guide and connected and fixed to the fixing plate; and support angles, which are respectively located on one side of the upper baffle and one side of the lower baffle for support. The interior trim panel of this invention has an internal reinforcing structure that fastens and presses the guide, making the guide firmly fixed. The locking button on the outside of the interior trim panel limits the movement of the guide. The structure is simple, the connection is tight, and the pressure of the guide on the interior trim panel is reduced.

The utility model discloses an exosome secretion culture dish, include: culture dish body, be provided with the stacking connection structure and adjusting mechanism on the culture dish body, the stacking connection structure includes upper connecting portion, upper connecting portion fixedly connected on the culture dish body upper end, the culture dish body bottom fixedly connected with lower connecting portion, upper connecting portion side wall fixedly connected with connecting seat, the lower connecting portion inside is equipped with the installation groove, connecting seat inserts in the installation groove inside, the connecting seat inside inserts and inserts the plug -in rod, the plug -in rod upper end fixedly connected with the pull rod, the pull rod upper end fixedly connected with the limit rod, limit rod inserts in the limit cavity inside. Realize this exosome secretion culture dish can carry out convenient stacking connection, the culture dish is convenient in the transportation process and carries on the stacking transportation, and the connection fastening between multiple culture dishes, will not fall off because of the shaking, has improved the practicality and convenience of device.