Anti-loose fastener

Abstract

The utility model provides an anti-loose fastener, and relates to the field of fasteners. The anti-loosening fastener comprises a screw cap, a screw rod, a nut and a groove for preventing external objects from being scratched, the bottom of the groove is rotationally connected with an anti-loosening mechanism for preventing the fastener from loosening, the anti-loosening mechanism comprises an anti-loosening plate and a retention groove, the anti-loosening plate moves in the screw rod, the retention groove is formed in the inner wall of the nut, and the anti-loosening plate moves in the screw rod. The inner wall of the retention groove is in sliding connection with the surface of the anti-loosening plate. According to the anti-loose fastener, the anti-loose mechanism is arranged, a rotating disc is rotated to drive a gear in a rotating cavity to rotate, the gear rotates to drive a rack to move, the rack moves to drive a connecting rod to move in a moving cavity, and the connecting rod moves to drive an anti-loose plate to move in an anti-loose groove to be attached to a retention groove; the application range of the fastener to objects needing different thicknesses is expanded, and the situation that the difficulty of later fastener dismounting work is increased due to deformation of the screw rod is prevented.

Description

Technical Field

[0001] The present application relates to the technical field of fasteners, and in particular to an anti-loosening fastener. Background Art

[0002] Fasteners are a type of mechanical parts used for fastening and connection and are extremely widely used. Fasteners are widely used in a wide range of industries, including energy, electronics, electrical appliances, machinery, chemicals, metallurgy, molds, hydraulics, etc. Various fasteners can be seen on various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, instruments and supplies, etc. They are the most widely used mechanical basic parts. However, in daily use, fasteners have always been loose after a period of use.

[0003] Patent No. CN219673068U discloses an anti-loosening fastener, which rotates the nut to the surface of the screw rod, inserts the hexagonal screwdriver into the hexagonal groove and rotates it, so that the rotating block rotates in the first groove, and the rotating block drives the rotating rod and the threaded rod on the surface to rotate. When the threaded rod rotates, it drives the sliding block on the surface to slide in the first slide groove and drives the fixed block on the surface to move. When the fixed block moves to the second groove, the surface of the threaded rod is provided with a notch, and the truncated cone-shaped fixed block will open the four sides of the screw rod, so that the nut cannot rotate, thereby achieving the purpose of preventing loosening. However, the scope of the fastener to open the screw rod by the fixed block so that the nut cannot rotate is limited, and it cannot adapt to objects of different thicknesses that need to be fixed by the fastener. The scope of application is limited, and the long-term opening will cause the screw rod to deform, which increases the difficulty of the later fastener disassembly work. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present application provides an anti-loosening fastener that solves the problems mentioned in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present application is implemented through the following technical solutions: an anti-loosening fastener, including a nut, a screw rod, a nut and a groove to prevent scratches from external objects, the bottom of the groove is rotatably connected with an anti-loosening mechanism for preventing the fastener from loosening, the anti-loosening mechanism includes an anti-loosening plate and a retaining groove, the anti-loosening plate moves inside the screw rod, the retaining groove is opened on the inner wall of the nut, and the inner wall of the retaining groove is slidably connected to the surface of the anti-loosening plate.

[0008] By adopting the above technical solution, the nut can be retained by using the anti-loosening plate that is slidably connected to the retaining groove formed on the inner wall of the nut to prevent the nut from loosening.

[0009] Preferably, the anti-loosening mechanism also includes a turntable and a rotating chamber, the bottom of the turntable is rotatably connected to the bottom of the groove, a gear is fixedly connected to the bottom of the turntable, the rotating chamber is opened at the bottom of the nut, and the gear is located above the inside of the rotating chamber.

[0010] By adopting the above technical solution, the rotation of the turntable can be used to drive the gears inside the moving cavity to rotate, thereby providing power support for the operation of the anti-loosening mechanism.

[0011] Preferably, the anti-loosening mechanism also includes a rack and a connecting rod, one side of the rack is meshingly connected to the side of the gear, the top of the rack is slidingly connected to both sides of the top of the rotating chamber, the top of the connecting rod is fixedly connected to one side of the bottom of the rack, and the bottom of the connecting rod is fixedly connected to the top of the anti-loosening plate.

[0012] By adopting the above technical solution, the movement of the rack meshing with the gear can be utilized to drive the connecting rod to move, and the movement of the connecting rod drives the anti-loosening plate to move to fit with the retaining groove, thereby achieving the purpose of restricting the nut.

[0013] Preferably, the anti-loosening mechanism further comprises a moving cavity, the moving cavity is opened at the top of the screw, and the top of the moving cavity is connected to the bottom of the rotating cavity.

[0014] By adopting the above technical solution, the movable cavity can be used to provide a placement space for the anti-loosening plate at the bottom of the connecting rod, thereby reducing the possibility that the anti-loosening plate affects the normal use of the screw rod and the nut.

[0015] Preferably, the anti-loosening mechanism further comprises an anti-loosening groove, wherein the anti-loosening groove is provided on both sides of the screw rod, the anti-loosening groove is connected to both sides of the movable cavity, and the side surface of the anti-loosening plate is slidably connected to the inner wall of the anti-loosening groove.

[0016] By adopting the above technical solution, the anti-loosening groove can be used to provide a movable space for the movement of the anti-loosening plate, and the movement of the anti-loosening plate can be restricted.

[0017] Preferably, the number of the rack, the connecting rod and the anti-loosening plate in the anti-loosening mechanism are two and they are arranged symmetrically around the center.

[0018] By adopting the above technical solution, the purpose of balancing the anti-loosening force can be achieved by utilizing the symmetrically arranged racks, connecting rods and anti-loosening plates.

[0019] Preferably, a limiting mechanism for limiting the rotation of the turntable is fixedly connected to the inner side of the groove, and the limiting mechanism includes a limiting hole and a telescopic tube. The limiting holes are evenly arranged on the side of the turntable, the telescopic tube is fixedly connected to one side of the inner wall of the groove, and one end of the telescopic tube is slidably connected to the inner wall of the limiting hole.

[0020] By adopting the above technical solution, the turntable can be limited by utilizing the sliding connection between the telescopic tube and the limiting hole.

[0021] Preferably, the limiting mechanism further comprises a movable plate and a telescopic cavity, the movable plate is fixedly connected to one side of the surface of the telescopic tube, the telescopic cavity is opened inside the telescopic tube, and springs are fixedly connected to both ends of the telescopic cavity.

[0022] By adopting the above technical solution, the movable plate can be used to control the length of the telescopic tube, and the elastic force of the spring inside the telescopic cavity can be used to fit one end of the telescopic tube to one end of the limiting hole.

[0023] (III) Beneficial effects

[0024] The present application provides an anti-loosening fastener. The beneficial effects are as follows:

[0025] 1. The anti-loosening fastener is provided with an anti-loosening mechanism. Rotating the turntable drives the gear in the rotating cavity to rotate. The rotation of the gear drives the rack to move. The movement of the rack drives the connecting rod to move in the moving cavity. The movement of the connecting rod drives the anti-loosening plate to move in the anti-loosening groove until it fits with the retaining groove. This expands the application range of the fastener for objects requiring different thicknesses and prevents the difficulty of later fastener disassembly work from being increased due to deformation of the screw.

[0026] 2. The anti-loosening fastener is provided with a limiting mechanism. When the anti-loosening mechanism needs to be adjusted, the movable plate is moved to drive the telescopic tube to disengage from the limiting hole, and at the same time drive the spring in the telescopic cavity to be compressed. After the adjustment is completed, the control of the movable plate is released, so that the telescopic tube is extended by the elastic force of the spring until one end thereof fits into the limiting hole, thereby achieving the purpose of limiting and fixing the turntable, preventing the turntable from rotating without human influence, thereby causing the anti-loosening plate to disengage from the retaining groove, and enhancing the stability of the anti-loosening fastener. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the implementation scheme of the utility model or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 This is a schematic diagram of the structure of the application from the right side and from the top;

[0029] Figure 2 This is a schematic diagram of the appearance structure of this application when viewed from the left and upward;

[0030] Figure 3This is a schematic diagram of the anti-loosening mechanism structure of this application from left to top;

[0031] Figure 4 This is an enlarged schematic diagram of the structure of Part A of this application;

[0032] Figure 5 This is a schematic diagram of the cross-sectional structure of the limiting mechanism of this application from the right side and top view;

[0033] Figure 6 This is an enlarged schematic diagram of the structure of Part B of this application;

[0034] Figure 7 This is a schematic diagram of the cross-section of the structure of the present application from the left side and top view.

[0035] In the figure: 1. nut; 2. screw rod; 3. nut; 4. groove; 5. anti-loosening mechanism; 501. turntable; 502. rotating chamber; 503. gear; 504. rack; 505. connecting rod; 506. moving chamber; 507. anti-loosening groove; 508. anti-loosening plate; 509. retaining groove; 6. limiting mechanism; 601. limiting hole; 602. telescopic tube; 603. moving plate; 604. telescopic chamber; 605. spring. DETAILED DESCRIPTION

[0036] It should be noted that in the description of the embodiments of the present application, the terms "front, rear", "left, right", "up, down", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application. The terms "install", "connect", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0037] The present application is further described in detail below through drawings and examples.

[0038] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7, the embodiment of the present application provides an anti-loosening fastener, including a nut 1, a screw rod 2, a nut 3 and a groove 4 for preventing external objects from scratching, the bottom of the groove 4 is rotatably connected with an anti-loosening mechanism 5 for preventing the fastener from loosening, the anti-loosening mechanism 5 includes an anti-loosening plate 508 and a retaining groove 509, the anti-loosening plate 508 moves inside the screw rod 2, the retaining groove 509 is arranged on the inner wall of the nut 3, the inner wall of the retaining groove 509 is slidably connected to the surface of the anti-loosening plate 508, a turntable 501 is rotatably connected to the bottom of the groove 4, a gear 503 is fixedly connected to the bottom of the turntable 501, a rotating chamber 502 is arranged at the bottom of the nut 1, the gear 503 is located above the inside of the rotating chamber 502, a rack 504 is meshedly connected to the side of the gear 503, the top of the rack 504 is slidably connected to the two sides of the top of the rotating chamber 502, and one side of the bottom of the rack 504 is fixedly connected There is a connecting rod 505, the bottom of the connecting rod 505 is fixedly connected to the top of the anti-loosening plate 508, a moving cavity 506 is opened at the top of the screw 2, the top of the moving cavity 506 is connected to the bottom of the rotating cavity 502, anti-loosening grooves 507 are opened on both sides of the screw 2, the anti-loosening grooves 507 are connected to both sides of the moving cavity 506, the side of the anti-loosening plate 508 is slidably connected to the inner wall of the anti-loosening groove 507, the number of racks 504, connecting rods 505 and anti-loosening plates 508 in the anti-loosening mechanism 5 are all two and are symmetrically arranged around the center, rotating the turntable 501 drives the gear 503 in the rotating cavity 502 to rotate, the rotation of the gear 503 drives the rack 504 to move, the movement of the rack 504 drives the connecting rod 505 to move in the moving cavity 506, the movement of the connecting rod 505 drives the anti-loosening plate 508 to move in the anti-loosening groove 507 until it fits with the retaining groove 509.

[0039] Reference Figure 5 and Figure 6 In one aspect of the present embodiment, a limiting mechanism 6 for limiting the rotation of the turntable 501 is fixedly connected to the inner side of the groove 4. The limiting mechanism 6 includes a limiting hole 601 and a telescopic tube 602. The limiting holes 601 are evenly arranged on the side of the turntable 501. The telescopic tube 602 is fixedly connected to one side of the inner wall of the groove 4. One end of the telescopic tube 602 is slidably connected to the inner wall of the limiting hole 601. A movable plate 603 is fixedly connected to one side of the surface of the telescopic tube 602. A telescopic cavity 604 is arranged inside the telescopic tube 602. Springs 605 are fixedly connected to both ends of the telescopic cavity 604. When the anti-loosening mechanism 5 needs to be adjusted, the movable plate 603 is moved to drive the telescopic tube 602 to disengage from the limiting hole 601, and at the same time drive the spring 605 in the telescopic cavity 604 to be compressed. After the adjustment is completed, the control of the movable plate 603 is released, so that the telescopic tube 602 is extended to one end to fit the limiting hole 601 under the drive of the elastic force of the spring 605.

[0040] All electrical equipment in this solution are powered by an external power supply.

[0041] Working principle: When in use, rotate the nut 3 threadedly connected to the screw rod 2 until one side of the nut 3 fits with the surface of the object, move the movable plate 603 to drive the telescopic tube 602 to disengage from the limiting hole 601, and at the same time drive the spring 605 in the telescopic chamber 604 to compress, rotate the turntable 501 to drive the gear 503 in the rotating chamber 502 to rotate, the rotation of the gear 503 drives the rack 504 to move, the movement of the rack 504 drives the connecting rod 505 to move in the moving chamber 506, the movement of the connecting rod 505 drives the anti-loosening plate 508 to move in the anti-loosening groove 507 until it fits with the retaining groove 509, release the control of the movable plate 603, so that the telescopic tube 602 is extended to one end to fit with the limiting hole 601 under the drive of the elastic force of the spring 605.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An anti-loosening fastener, comprising a nut (1), a screw (2), a nut (3) and a groove (4) for preventing scratches by external objects, characterized in that: The bottom of the groove (4) is rotatably connected to an anti-loosening mechanism (5) for preventing the fastener from loosening. The anti-loosening mechanism (5) includes an anti-loosening plate (508) and a retaining groove (509). The anti-loosening plate (508) moves inside the screw rod (2). The retaining groove (509) is provided on the inner wall of the nut (3). The inner wall of the retaining groove (509) is slidably connected to the surface of the anti-loosening plate (508).

2. The anti-loosening fastener according to claim 1, characterized in that: The anti-loosening mechanism (5) further comprises a rotating disk (501) and a rotating chamber (502); the bottom of the rotating disk (501) is rotatably connected to the bottom of the groove (4); a gear (503) is fixedly connected to the bottom of the rotating disk (501); the rotating chamber (502) is opened at the bottom of the nut (1); and the gear (503) is located above the inside of the rotating chamber (502).

3. The anti-loosening fastener according to claim 2, characterized in that: The anti-loosening mechanism (5) further comprises a rack (504) and a connecting rod (505); one side of the rack (504) is meshingly connected to the side of the gear (503); the top of the rack (504) is slidably connected to both sides of the top of the rotating chamber (502); the top of the connecting rod (505) is fixedly connected to one side of the bottom of the rack (504); and the bottom of the connecting rod (505) is fixedly connected to the top of the anti-loosening plate (508).

4. The anti-loosening fastener according to claim 3, characterized in that: The anti-loosening mechanism (5) further comprises a movable cavity (506), wherein the movable cavity (506) is opened at the top of the screw rod (2), and the top of the movable cavity (506) is connected to the bottom of the rotating cavity (502).

5. The anti-loosening fastener according to claim 4, characterized in that: The anti-loosening mechanism (5) further comprises an anti-loosening groove (507), wherein the anti-loosening groove (507) is provided on both sides of the screw rod (2), the anti-loosening groove (507) is connected to both sides of the movable cavity (506), and the side surface of the anti-loosening plate (508) is slidably connected to the inner wall of the anti-loosening groove (507).

6. The anti-loosening fastener according to claim 5, characterized in that: The number of the rack (504), the connecting rod (505) and the anti-loosening plate (508) in the anti-loosening mechanism (5) are all two and they are arranged symmetrically around the center.

7. The anti-loosening fastener according to claim 1, characterized in that: A limiting mechanism (6) for limiting the rotation of the rotating disk (501) is fixedly connected to the inner side of the groove (4); the limiting mechanism (6) comprises a limiting hole (601) and a telescopic tube (602); the limiting holes (601) are evenly arranged on the side of the rotating disk (501); the telescopic tube (602) is fixedly connected to one side of the inner wall of the groove (4); and one end of the telescopic tube (602) is slidably connected to the inner wall of the limiting hole (601).

8. The anti-loosening fastener according to claim 7, characterized in that: The limiting mechanism (6) further comprises a movable plate (603) and a telescopic cavity (604); the movable plate (603) is fixedly connected to one side of the surface of the telescopic tube (602); the telescopic cavity (604) is arranged inside the telescopic tube (602); and springs (605) are fixedly connected to both ends of the telescopic cavity (604).

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