508 results about "First insertion" patented technology

The utility model relates to the field of folding fishing platforms, in particular to an integrated foldable storage fishing platform and fishing platform, which comprises a split type locking sleeve fixedly mounted at the top corner of a platform plate and provided with an insertion cavity for insertion of supporting legs, and the insertion cavity has an insertion direction extending from the top of the split type locking sleeve to the bottom of the split type locking sleeve. The support leg is provided with a first insertion position and a second insertion position along the insertion direction; the rotating piece is rotatably mounted in the split type locking sleeve and provided with a rotating shaft perpendicular to the insertion direction, and a penetrating cavity allowing the supporting foot to penetrate through is formed in the rotating piece; the effect of rotating the supporting legs to the back side of the table plate under the condition that the supporting legs are not completely separated is achieved through the split type locking sleeves internally provided with the rotating pieces, and the technical problems that in the prior art, a fishing table is not convenient enough to store, and the supporting legs are prone to being lost are solved.

The invention relates to the technical field of mold equipment, in particular to an improved mold structure which comprises a bottom plate, a base plate, a movable mold plate, a fixed mold plate and a runner plate, a push plate is connected to the bottom plate, a fixed plate is mounted on the bottom plate, the fixed plate is arranged between the push plate and the bottom plate, a demolding mechanism is mounted on the push plate and comprises a push cover, and the push cover is mounted on the push plate. A first insertion hole is formed in the push cover, an insertion piece is detachably installed on the fixing plate, the insertion piece comprises a connecting plate, a fixing rod is installed on the connecting plate, a second insertion hole is formed in the fixing plate, and the fixing rod is inserted into the first insertion hole and the second insertion hole to fix the push plate to the fixing plate; a top stick column is detachably installed in the push cover, an annular groove is formed in the top stick column, and the fixing rod is clamped into the annular groove of the top stick column to fix the top stick column. And mold opening and closing mechanisms are mounted on the movable mold plate, the fixed mold plate and the runner plate. The mold has the effect of improving the convenience of quick mold replacement and the mistake proofing of the sequence of mold opening and closing steps of the mold.

The application provides a terminal welding clamp and a fixing method of terminals to be welded on a substrate. The terminal welding clamp comprises a bottom plate provided with a bottom plate fixing column; a fixing frame provided with a rectangular cavity, a fixing frame opening and suitable for fixing a DBC; the fixing frame is further provided with a fixing frame fixing hole; a support provided with a first opening penetrating through and capable of accommodating a terminal to be vertically inserted from above and to pass through; a first support table is arranged above the outer periphery of the first opening, and first grooves are arranged on both sides of the inner wall and capable of accommodating the upper end of the terminal to be inserted and clamped; a first insertion hole penetrating through is arranged on the side edge of the support and capable of accommodating the terminal to be vertically inserted from above and to pass through; the support is further provided with a support fixing hole; a fixing block is provided with an opening, and the top end of the terminal can be inserted and clamped in the opening; and the fixing block is further provided with a fixing block fixing column. When the support and the bottom plate are assembled, the terminal does not need to be assembled with the support in advance, the working efficiency is high, and the bottom plate and the support with products do not need to be inclined, and there is no risk of terminal falling.

The utility model discloses a product pouring gate removing tool which comprises a tool body, two product bodies are placed on the top of the tool body, the two product bodies are jointly and fixedly connected with a pouring gate connecting piece, the bottom of each product body is fixedly connected with a first protruding block, a second protruding block and a third protruding block, and the first protruding block, the second protruding block and the third protruding block are arranged on the tool body. Two pairs of first inserting grooves, second inserting grooves and third inserting grooves are formed in the top of the tool body, a first stand column, a second stand column and a third stand column are fixedly connected to the bottom of each product body, and two pairs of first limiting grooves, second limiting grooves and third limiting grooves are formed in the top of the tool body. Products can be fixed at a time through the cooperation of the protruding blocks and the inserting grooves, the products can be fixed again through the cooperation of the stand columns and the limiting grooves, manual fixing of the products is replaced, limiting of the products is achieved, the fixing positions of the products are consistent every time, and the follow-up cutting effect is good.

This invention relates to a circumferentially mating plug and socket, comprising a plug body and a socket body. The plug body includes a first insulating base, and its top is coaxially arranged with a first protective ring, a first insertion ring, a second insulating ring, a second insertion ring, a third insulating ring, a third insertion ring, a fourth insulating ring, and a fourth insertion element, all of which are conductive to the plug wires. The socket body includes a second insulating base, and its top is coaxially arranged with a second protective ring, a first insertion ring, a fifth insulating ring, a second insertion ring, a sixth insulating ring, a third insertion ring, a seventh insulating ring, and a fourth insertion ring, all of which are conductive to the socket wires. During mating, each insulating ring of the plug inserts into its corresponding positioning ring, and the insertion ring inserts into its corresponding insertion ring, achieving precise circumferential mating and conductive connection. This circumferentially mating plug and socket, by employing a concentric circle structure, enables mating of the plug and socket in any direction, greatly reducing the difficulty of plug-socket connection and facilitating automated mating of the plug and socket.

The utility model discloses a locking mechanism for a meat grinder, which comprises a machine head, a machine body, a locking component and a handle, and the machine head is provided with a first inserting part; the machine body is provided with a second inserting part, and the machine head is installed on the machine body through inserting connection of the first inserting part and the second inserting part. One of the first inserting part and the second inserting part is an inserting block, and the other one of the first inserting part and the second inserting part is an inserting groove; the locking assembly comprises a first locking piece arranged on the machine head and a second locking piece arranged on the machine body. When the handle is pulled, the first locking piece and the second locking piece can be driven to be mutually locked or unlocked. Therefore, the first locking piece and the second locking piece can be driven to be mutually locked or unlocked by pulling the handle, the operation is simple and convenient, the stable connection between the machine head and the machine body is ensured, the problem that the machine head and the machine body are loosened or separated during working is avoided, the use safety and stability of the meat grinder are improved, the accident risk is reduced, and the safety of the meat grinder is improved. And the use safety of the user is ensured.

This invention relates to the field of communication technology and discloses a chassis mounting assembly and a communication device. The chassis mounting assembly includes a mounting arm and a hook. The hook includes a flat main body and a first insertion part. The main body includes a first surface and a second surface disposed opposite to each other. The first surface is used to fit against the side wall of the chassis. The first insertion part is connected to the bottom of the main body and extends in a direction away from the top of the main body. One end of the first insertion part away from the top of the main body is located on the side of the second surface away from the first surface. The mounting arm includes a mounting arm body and a first insertion slot. The mounting arm body is used to be fixed to the rear end of the frame. The first insertion slot is fixed to the bottom of the mounting arm body and is located on the side of the mounting arm body facing the hook. The first insertion part can be inserted into the first insertion slot and slidably connected with the first insertion slot. This chassis mounting assembly and communication device improves the problem of the rear of the chassis drooping after being mounted on the rack.

The utility model discloses a kind of steel mesh frame insert piece type quick fixing structure, it is related to transfer printing technical field, including steel mesh, the edge of steel mesh is inserted and inserted piece is engaged, steel mesh, insert piece are connected with frame strip by first insertion slot, second insertion slot common engagement, the adjacent end of the frame strip is connected with corner connecting piece by guide slot, sliding slot, convex edge, convex handle, convex strip, baffle, third insertion slot common engagement. The structure when fixing steel mesh, full course does not need bolt and other auxiliary parts, realize the quick assembly of steel mesh and frame for transfer printing, greatly shorten assembly time, the flatness of steel mesh and frame overall rigidity in long-term use are guaranteed by multiple engagement structure, effectively avoid the transfer printing precision deviation caused by steel mesh displacement, frame deformation, meet the efficient, low cost, high stability production demand of transfer printing.

A storage box having a plate-shaped wall structure and capable of being repeatedly disassembled and assembled includes two first plate-shaped walls, two second plate-shaped walls, and two third plate-shaped walls. When the storage box is in an assembled state, the two first plate-shaped walls and the two second plate-shaped walls are located between the two third plate-shaped walls, the two first plate-shaped walls are located between the two second plate-shaped walls, first insertion heads of the first plate-shaped walls are inserted into first insertion grooves of the second plate-shaped walls, second insertion heads of the first plate-shaped walls are inserted into second insertion grooves of the third plate-shaped walls, third insertion heads of the second plate-shaped walls are inserted into third insertion grooves of the third plate-shaped walls, and the third plate-shaped walls are connected to the first plate-shaped walls or the second plate-shaped walls via unlockable first locking structures.

The utility model discloses a wiring assembly and power distribution cabinet, this wiring assembly includes: insulating seat, the electric row is connected in insulating seat, the number of conductive ring is provided with a plurality of, a plurality of conductive ring all cover the outside of electric row, and the outside surface of conductive ring is equipped with installation slot, and installation slot is set up in the through from top to bottom, and the swing arm that rotates along the top to bottom direction is equipped with in installation slot, and swing arm divides installation slot into first insertion area and second insertion area, and the upper end of swing arm is equipped with first convex part in the position of first insertion area, and the lower end of swing arm is equipped with second convex part in the position of second insertion area, and the rotation axis of swing arm is located between first convex part and second convex part. The utility model discloses the conductive ring only has one kind of specification, and the conductive ring under this specification not only can satisfy the locking of power grid input end, but also can satisfy the locking of electric row output end, and can maintain the structural integrity of input end and output end, thereby reaches better power transmission effect.

The utility model discloses a quick assembly type wallboard structure which comprises a board body, a first inserting part and a second inserting part, wherein the first inserting part and the second inserting part are arranged on the two sides of the board body respectively and used for assembly. The first inserting part and the second inserting part respectively comprise a first convex plate and a second convex plate which extend from the two sides of the plate body, and a first inserting groove and a second inserting groove which are respectively formed in the first convex plate and the second convex plate; a plurality of sets of arc-shaped protrusions are evenly distributed on the side wall of one side of the first protruding plate, and a plurality of sets of arc-shaped clamping grooves matched with the arc-shaped protrusions are evenly distributed in a plate body on the corresponding side in the second inserting groove. A plurality of sets of connecting rods are arranged on the side wall of one side of the second protruding plate, and a plurality of sets of pin grooves matched with the connecting rods are formed in the corresponding positions of the plate body on the corresponding side in the first inserting groove. The wallboard structure can be quickly assembled, meanwhile, the up-and-down levelness and the left-and-right flatness between the adjacent wallboards can be conveniently observed and judged during assembly, and it is guaranteed that the multiple sets of wallboards have high position uniformity and installation efficiency during installation.

The utility model discloses a sunshade easy to assemble and store, which comprises a sunshade body and a sunshade base, an inserting structure is arranged at the bottom of the sunshade body, and the inserting structure is detachably connected with the sunshade base; wherein the sunshade base is composed of a first bayonet socket and a second bayonet socket which are detachably connected, first extension plates are fixedly connected to the two sides of the first bayonet socket, and the first extension plates and the second extension plates are crossed by 90 degrees to form a stable cross structure, so that the supporting area and the stability of the base are increased; the heights of the first supporting legs and the second supporting legs can be adjusted through screws to adapt to fluctuation of different grounds, it is ensured that the sunshade base is always kept horizontal, the vertical state of the sunshade body is ensured, and the situation that the sunshade body inclines due to uneven grounds is avoided; the assembly process is simple and visual by inserting and matching the guide column with the through hole, inserting and matching the inserting column with the through hole and screw-thread matching between the guide column and the nut.

A connecting device includes a compressively deformable heat-conductive pad, a connector assembly, and a protection structure. The connector assembly includes a shield. The shield defines a first insertion channel and has a bottom wall and a pressing structure. The first insertion channel has a first channel opening for insertion of a pluggable module. The bottom wall forms a bottom aperture for the heat-conductive pad to pass into the first insertion channel. The protection structure includes a first elastic protection member disposed on the bottom wall between the first channel opening and the bottom aperture. During insertion of the pluggable module into the first insertion channel, the pluggable module is supported by the first elastic protection member to maintain a gap between a heat-generating surface of the pluggable module and the heat-conductive pad. Then, a back surface of the pluggable module is pressed by the pressing structure to elastically deform the first elastic protection member and to cause the heat-generating surface to abut against the heat-conductive pad. Thus, the surface of the heat-conductive pad can abut against the heat-generating surface of the pluggable module without a gap, thereby improving heat dissipation.

The utility model discloses a stone wallboard with engraving groove belongs to stone wallboard field, including first wallboard and second wallboard, first wallboard and second wallboard opposite one end are fixedly connected with two first mounting block and second mounting block respectively, the top of first mounting block is seted up with the clamping slot, the one end fixedly connected with the clamping block of second mounting block is close to first mounting block, the top of first mounting block is seted up with first cooperation slot, the top of first cooperation slot is seted up with first insertion slot, the bottom fixedly connected with first cooperation board of second mounting block. This stone wallboard with engraving groove, through setting clamping slot, clamping block and first insertion block, this stone wallboard in the installation process, through the mortise and tenon joint of first wallboard and second wallboard, can improve the firmness of first wallboard and second wallboard connection, and the mortise and tenon structure can improve the stress of first wallboard and second wallboard multidirectional, guarantee the strength of this stone wallboard whole.

This utility model discloses a fan mounting base that is easy to assemble and disassemble, including a suspended base. The suspended base includes a suspended cylinder, a bracket, a connecting base, and mounting holes. There are three connecting bases, each welded to the lower end of the bracket and arranged symmetrically in a ring. The mounting holes are also arranged symmetrically in a ring on the connecting bases. The connecting base is fixed to the upper end of the suspended cylinder by bolts and mounting holes. An alignment assembly is also included, comprising a fixing plate, a first insertion hole, a second insertion hole, and a connector. The fixing plate is welded to the upper side of the suspended cylinder. The first and second insertion holes are located on the fixing plate. One end of the connector is inserted into two adjacent mounting holes, and the other end is inserted into the first and second insertion holes respectively. This utility model, through its alignment assembly, allows for quick alignment between the mounting holes on the connecting base and the screws on the suspended cylinder, improving installation efficiency.

The modular hydraulic pipe jacking system comprises a base, a connecting groove is formed in the rear side of the base, first inserting grooves are formed in the two sides of the connecting groove, an assembling plate is arranged on the upper side of the base, connecting blocks are arranged on the lower side of the assembling plate, and the connecting blocks are connected with the connecting groove and the first inserting grooves correspondingly; the connecting groove is connected with a connecting piece, a guide rail is arranged on the base, and the guide rail is connected with a top plate in a sliding mode. The invention relates to the technical field of pipe jacking construction. Modular design is adopted, all parts are convenient to disassemble and assemble, the construction efficiency and flexibility are greatly improved, in the pipe jacking construction process, if parts such as a hydraulic push rod and a top plate are damaged, it is not needed to replace the whole device like a traditional integrated pipe jacking machine, and it is also not needed to shut down for a long time to conduct complex maintenance on independent parts; the modular design enables the maintenance work to be simple and fast, and the maintenance time is greatly shortened.

This utility model relates to the field of vertical mill roller sleeve technology. It provides a wear-resistant roller sleeve for a vertical mill, comprising a roller sleeve body, a reinforcing layer fixedly installed on the upper outer side of the roller sleeve body, an inner cavity fixedly opened inside the roller sleeve body, a first insertion block fixedly connected inside the inner cavity, and a second insertion block fixedly connected to the right side of the first insertion block. An expansion ring is fixedly installed at the front end of the second insertion block, and an installation block is fixedly installed at the front end of the expansion ring. A cylinder is fixedly installed at the front end of the installation block. This invention solves the technical problems of traditional vertical mill roller sleeve installation, where the roller sleeve is fixed to the grinding roller with screws, resulting in long maintenance time during disassembly and replacement due to roller sleeve wear, leading to increased downtime and reduced production continuity. Furthermore, the roller sleeve is in direct contact with the material during use, and prolonged contact with hard materials can easily damage the roller sleeve, reducing its lifespan and increasing production costs.

The screwdriver handle comprises a pinching part, an extension rod and a chuck, the pinching part is provided with a first end and a second end which are opposite to each other, the first end is provided with a first insertion hole, the first insertion hole is configured to be in insertion connection with a tool head, and the shape of the first insertion hole is matched with that of the insertion end of the tool head; the second end is provided with a mounting hole; the extension rod is provided with a third end and a fourth end which are opposite; the third end is provided with a tail cover; the clamping head is connected with the pinching part, the clamping head is provided with a through hole, the through hole is communicated with the mounting hole, and the through hole and the mounting hole are configured to allow the extension rod to extend into; the chuck is provided with a locking mechanism, when the locking mechanism is in an unlocking state, the extension rod can move in the through hole in the axial direction of the through hole, and when the locking mechanism is in a locking state, the position of the extension rod is locked. The length of the screwdriver handle can be adjusted according to using requirements, and the comfort degree of a user using the screwdriver handle is greatly improved.

The invention discloses an adjustable flow monitor probe fixing device for a coal mine, and belongs to the technical field of flow monitor probe fixing. A lateral observation opening is formed in the side wall of a storage sleeve, an L-shaped pipeline is arranged in the middle section of the side wall of the storage sleeve, and a first insertion opening and a second insertion opening are formed in the two ends of the L-shaped pipeline respectively; a quick insertion rod is inserted into a corresponding hole of the first insertion opening, the quick insertion rod is fixedly connected with the L-shaped pipeline, and a probe mounting ferrule is arranged at the tail of the quick insertion rod; and a vertical height adjusting rod is inserted and connected into the second inserting opening. The lateral adjusting system, the vertical adjusting system and the overall detachable mechanism cooperate to achieve accurate positioning of the probe in a three-dimensional space (width, height and position), the adaptability of equipment to a complex mine ditch environment is improved through the detachable structure, meanwhile, the installation process is simplified, it is guaranteed that the probe of the flow monitor is located at the optimal monitoring position all the time, and the flow monitoring efficiency is improved. The reliability of monitoring data is improved; and the service life of equipment is prolonged.

The invention provides a control device and an electric valve, and relates to the technical field of fluid control. The control device comprises a fixed seat, a packaging chip, a first contact pin, a second contact pin, a stator assembly and a shell, the packaging chip is provided with a first contact and a second contact, the fixed seat is provided with a containing cavity, a first jack and a second jack, the first jack and the second jack are respectively communicated with the containing cavity, the packaging chip is arranged in the containing cavity, the first contact corresponds to the first jack, and the second contact corresponds to the second jack; the fixed seat is limited and connected in the shell; at least part of the first pin is located in the first jack, one end of the first pin is electrically connected with the first contact, and the other end is electrically connected with the stator assembly; at least part of the second pin is located in the second jack, one end of the second pin is electrically connected with the second contact, and the other end of the second pin is electrically connected with an external component. According to the control device, stable electric connection of the packaging chip and the stator assembly in the shell is facilitated, so that the control device can be suitable for various working condition scenes.

The novel watch rear cover comprises a watchcase and a rotating rod, a rear cover groove is arranged in the watchcase, a rear cover body is arranged on the back surface of the watchcase, two groups of first slots are symmetrically arranged on the left side and the right side of the top surface of the rear cover groove, two groups of sliding grooves are symmetrically arranged on the upper side and the lower side of the top surface of the rear cover groove, and a clamping groove is arranged on one side surface of the inner wall of each sliding groove. Second inserting grooves are formed in one side faces of the inner walls of the two first inserting grooves. The rear cover body is clamped in the rear cover groove, the connecting block and the inserting block are clamped in the first inserting groove and the sliding groove at the same time during clamping, the inclined face of the clamping block abuts against one side of the first inserting groove and retracts into the limiting groove during clamping, and then the rear cover body is rotated clockwise; when the opening of the limiting groove is aligned with the opening of the movable groove, the clamping block is bounced into the movable groove by the third spring to be limited and fixed, during disassembly, the pressing rod is pressed to push the partition plate, the clamping block is pushed back into the limiting groove, and then the rear cover body is rotated anticlockwise, so that the rear cover body can be disassembled.

The utility model provides a concrete cable cover plate with replacement counterweight structure belongs to concrete cable cover plate technical field, including support seat, quick replacement subassembly and lifting subassembly, quick replacement subassembly includes the fixed strip of setting in the both sides of counterweight block, and the inside of two fixed strips all has the support head of a plurality of intercalation connections, the utility model has the beneficial effect: through drive assembly and drive stop rod to move, stop rod moves and will slide from first insertion rod and second insertion rod, release the spacing of first insertion rod and second insertion rod, at this moment, the user holds the support bar, and first insertion rod and second insertion rod slide from support head, fixed strip, support seat and counterweight block, release its spacing, and separate the connecting head from fixed tube, at this moment, the user can pull the sealing cap upward, and then drive support head from fixed strip and slide out, make counterweight block expose, at this moment, the user will replace after pulling out counterweight block and reset, to realize the purpose of quick replacement.

The utility model discloses a bookshelf, which relates to the field of bookshelves and comprises a base, a top plate, a plurality of shelf plates, a plurality of back plates arranged at the rear parts of the shelf plates and a plurality of side plates arranged at the two sides of the shelf plates, a plurality of hollow first insertion blocks are arranged at the two sides of the shelf plates, and the lower surfaces of the first insertion blocks are open; a plurality of first inserting grooves are formed in the bottom of the side plate, a plurality of second inserting blocks are arranged at the top of the side plate, the first inserting grooves are provided with first inlets facing the first inserting blocks and second inlets facing the second inserting blocks, and the second inserting blocks can be inserted from the lower portion after the first inserting blocks are inserted into the first inserting grooves. The utility model has the advantages of saving space and being convenient to install.

This utility model discloses an environmentally friendly, recyclable outdoor reconstituted bamboo wall panel, comprising a bamboo panel body. The bamboo panel body is generally arc-shaped, with a first insertion interface and a second insertion interface on its outer side. The first insertion interface is located above the second insertion interface and is the same size. There are multiple bamboo panel bodies arranged alternately inside and outside. Positioning bamboo strips are provided between several bamboo panel bodies. The positioning bamboo strips are generally elongated and slide to connect the first insertion interface and the second insertion interface. A filling cavity is provided between the inner and outer sides of the bamboo panel bodies, and the filling cavity contains filling material. A rubber strip is provided at the connection point of the outer bamboo panel body, and the rubber strip is located inside the positioning bamboo strip. Bamboo tubes are inserted into both ends of the bamboo panel body. With the above structure, no nails or other sharp objects are needed for connection during installation, and the ends are wrapped with bamboo tubes to avoid scratches to children, thus improving the overall safety of the bamboo wall panel.

The embodiment of the utility model provides a wire inlet valve assembly for an electrical cabinet and the electrical cabinet. The inlet wire valve assembly comprises a shell, a plurality of first plug ports, a plurality of hinge holes, a first stroke hole and a second stroke hole, wherein the first stroke hole and the second stroke hole are formed in the extending direction of the shell; the valve is movably coupled in the shell and comprises a plurality of second plugging ports; the first bolt is coupled to the valve and is arranged in the first stroke hole; the connecting rod assembly comprises a hinged end and a sliding end, the hinged end is coupled in the hinged hole, and the sliding end is slidably coupled in the second stroke hole; the first elastic piece is coupled between the sliding end and the first bolt and is arranged to be stretched to accumulate force so as to drive the valve to move from the shielding position to the opening position through the first bolt when the sliding end slides in the direction away from the hinge hole, and in the opening position, the multiple first insertion openings are aligned with the multiple second insertion openings correspondingly; and a plurality of conductors can be inserted. Therefore, the reliability and the operation convenience can be improved.

The utility model discloses a plug used for a connector and the connector, belonging to the technical field of electric connectors, comprising a guide part and a clamping part which are respectively arranged on an outer conductor part through a male end housing, a first crack is arranged between the guide part and the clamping part, the guide part and the clamping part are enclosed to form a first plugging cavity which is in a tapered shape, and a second plugging cavity is arranged between the guide part and the clamping part. The clamping part is provided with a limiting part protruding in the direction close to the interior of the first insertion cavity. Therefore, in the butt joint process of the connector, the first insertion cavity which is enclosed by the guiding part and the clamping part and is in a gradually-shrinking shape provides guidance for butt joint, the first crack is beneficial for the guiding part and the clamping part to generate certain elastic deformation during insertion, meanwhile, the guiding part and the clamping part can be prevented from generating large deviation, and overlarge interference is avoided. And the limiting part arranged on the clamping part can realize clamping of the connector during insertion, so that accidental falling caused by external force is prevented. The utility model achieves the technical effects of improving the reliability and prolonging the service life.

This application discloses a metal connector, comprising: a plug assembly, a socket assembly, and a locking assembly; the socket assembly includes a socket housing, a female ferrule, and a female connector, the female ferrule being installed within the socket housing, and a first insertion cavity for the female connector to be inserted into is formed within the female ferrule. A first annular limiting portion protrudes from the cavity wall of the first insertion cavity. The female connector includes a first body, a first tapered portion, and a first annular portion, the first tapered portion and the first annular portion being spaced apart and protruding from the first body. When the female connector is inserted into the first insertion cavity, the first tapered portion can be compressed and contracted through the first limiting portion by the first limiting portion, and the large end face of the first tapered portion can abut against the two end faces of the first limiting portion of the first annular portion to form a limiting fit. This application ensures the stability of the connector during use and prevents loosening.

The utility model discloses a multistage slide wire guide rail connecting mechanism which comprises a first guide rail, one side of the first guide rail is provided with a second guide rail, the first guide rail is internally provided with a first rail cavity, the inner walls of the two sides of the first rail cavity are respectively provided with a first rail groove, and the second guide rail is internally provided with a second rail cavity. Second rail grooves are formed in the inner walls of the two sides of the second rail cavity, a second plugging seat is arranged on the side, away from the first guide rail, of the second guide rail, a second inserting block is arranged on the inner wall of the second plugging seat, second inserting strips are arranged on the outer walls of the two sides of the second inserting block, and a first plugging seat is arranged on the side, away from the second guide rail, of the first guide rail. And a first insertion block is arranged on the inner wall of the first plugging seat. The two ends of the first guide rail and the second guide rail which are connected are easily plugged, the phenomenon that the first plugging seat and the second plugging seat loosen and fall off is reduced, and the stability of the first guide rail and the second guide rail which are connected is guaranteed.

The utility model relates to a reinforcing steel bar connecting device with multistage locking structure, including reinforcing steel bar connecting sleeve, the top and bottom of reinforcing steel bar connecting sleeve all are provided with multistage locking connection mechanism, the top of connection main part is provided with the first insertion slot of two numbers, the inside of each first insertion slot all has and inserts the insertion piece, the left and right sides of connection main part all rotationally connected with the limiting screw rod corresponding with first insertion slot, the top of each insertion piece all fixedly installed with aluminium alloy clamping piece. The reinforcing steel bar connecting device with multistage locking structure, through the insertion piece of multistage locking connection mechanism and the first insertion slot of connection main part, the second insertion slot of connecting insertion piece mutually inserts, can realize the extension connection between multiple multistage locking connection mechanisms, thereby the contact area of reinforcing steel bar body butt joint place is increased, the bearing capacity under complex load is promoted, and the loose slip at the joint is reduced.

This application relates to a quick-release stamping die, comprising a fixed die and a controllable movable die. The movable die is connected to a stamping seat, and a first slot is provided on one side of the stamping seat. A pressure bearing seat is provided on the side of the fixed die, and a second slot is provided on one side of the pressure bearing seat. The punch includes a stamping part and a first insertion part inserted into the first slot, and the die includes a cavity and a second insertion part inserted into the second slot. This quick-release stamping die achieves detachable connection between the punch and the stamping seat, and between the die and the pressure bearing seat through the above structure, avoiding the operation of disassembling the entire die. It solves the problems of cumbersome replacement, low efficiency, and inaccurate positioning, and realizes rapid disassembly and assembly and precise positioning of die components, significantly improving the flexibility and efficiency of stamping operations.