Connecting nut anti-falling structure and automobile winch

Abstract

The utility model provides a connecting nut anti-disengaging structure and a vehicle winch. The connecting nut anti-disengaging structure comprises a winch support. A plurality of supporting legs distributed in an array shape are arranged on the rear side of the winch support, a concave cavity with an opening in the inner end is formed in each supporting leg, a nut is arranged in each concave cavity, each nut and the corresponding supporting leg are rotationally limited, and a through hole is formed in the rear side of each concave cavity; the connecting nut anti-disengaging structure further comprises limiting parts in one-to-one correspondence with the multiple concave cavities, each limiting part is arranged at the opening end of the corresponding concave cavity and fixed to the corresponding supporting leg, and the limiting parts are used for preventing the nuts from disengaging from the concave cavities. The winch for the vehicle comprises the connecting nut anti-falling structure. According to the winch support, through the arrangement of the limiting component, the limiting component can prevent the nut from being separated from the concave cavity, so that convenience can be brought to fixation of the winch support and a vehicle, and the nut can be prevented from being lost.

Description

Technical Field

[0001] This utility model relates to the field of winch technology, and more specifically, to a connecting nut anti-loosening structure and a vehicle winch. Background Technology

[0002] A vehicle winch is a traction device installed on a vehicle. When a vehicle needs to be towed, rescued, or used for self-rescue in the wild, the winch can assist in getting the vehicle out of trouble. Currently, vehicle winches on the market mainly consist of a winch bracket. The winch bracket has several support feet arranged in an array on its rear side. Each support foot has an inner cavity with an open end, and each cavity contains a nut. Each cavity also has a through hole on its rear side. When the winch bracket is fixed to the vehicle frame, the bolt thread passes from back to front through the connecting hole on the frame and the through hole on the rear side of the cavity, thus tightening the bolt thread with the nut. At this point, the winch bracket is securely fastened to the vehicle. However, in the above-mentioned vehicle winch structure, during the process of fixing the winch bracket to the vehicle frame, that is, during the tightening of the bolt thread with the nut, the nut is prone to falling out from the open end of the cavity, which can cause inconvenience in fixing the winch bracket to the vehicle and can easily lead to the loss of the nut. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a connecting nut anti-loosening structure and a vehicle winch, which can prevent the nut from coming out of the cavity by setting a limiting component.

[0004] This utility model provides a connecting nut anti-loosening structure, including a winch bracket; the rear side of the winch bracket is provided with a plurality of support feet arranged in an array, each support foot has an inner cavity with an open end, each cavity is provided with a nut, each nut is rotatably limited with the corresponding support foot, and the rear side of each cavity is provided with a through hole for the bolt shank to pass through and be threaded and tightened with the nut; the connecting nut anti-loosening structure also includes limiting components corresponding to the plurality of cavities, each limiting component is provided at the opening end of the corresponding cavity and fixed with the corresponding support foot, the limiting components are used to prevent the nut from detaching from the cavity.

[0005] By setting a limiting component at the opening end of the cavity, this utility model can prevent the nut from coming out of the cavity during the process of fixing the winch bracket to the vehicle frame by threading the bolt's threaded part with the nut. This facilitates the fixing of the winch bracket to the vehicle and prevents the nut from being lost.

[0006] In one possible implementation, the limiting component includes a limiting post; a socket is provided on the rear side of the opening end of the cavity, the limiting post is inserted into the socket, and the front end of the limiting post extends into the opening end of the cavity; with this structure, when the limiting post is inserted into the socket from back to front, the limiting post can be tightly fitted into the socket, and at the same time, the front end of the limiting post can extend into the opening end of the cavity, that is, the front end of the limiting post can prevent the nut from falling out of the cavity, thus preventing the nut from being lost, and facilitating the threaded connection between the bolt and the nut. In addition, in this embodiment, after the limiting post is inserted into the socket from back to front, the rear end of the limiting post is completely located inside the socket.

[0007] In one possible implementation, the cross-section of the limiting post is formed in the shape of a "C". By adopting a limiting post with this structure, the limiting post can have a certain elastic deformation capability. As the limiting post is inserted into the socket from back to front, it can shrink to a certain extent, which makes it easier to insert the limiting post into the socket. After the limiting post is inserted into the socket, it can spring back and tighten with the socket, thereby achieving a tight fit between the limiting post and the socket.

[0008] In one possible implementation, the front end of the limiting post is provided with a tapered surface, which is used to cooperate with the wall of the insertion hole to guide the limiting post into the insertion hole from back to front. By adopting this structure, during the process of the limiting post being inserted into the insertion hole from back to front, the tapered surface can cooperate with the wall of the insertion hole to guide the limiting post into the insertion hole from back to front, which can facilitate the insertion process between the limiting post and the insertion hole.

[0009] In one possible implementation, the nut is a square nut, with both its vertically opposite surfaces abutting against the inner wall of the cavity. A limiting groove is provided on the inner top or bottom surface of the cavity, and the nut slides horizontally within the limiting groove on the side facing it. The front and rear faces of the nut abut against the front and rear sides of the limiting groove, respectively. By employing this structure, since both vertically opposite surfaces of the nut abut against the inner wall of the cavity, rotational limiting of the nut and support leg can be achieved. That is, when the bolt's threaded portion is tightened with the nut's thread, the nut can be prevented from rotating with the bolt's threaded portion. The rotation facilitates the threaded connection between the bolt and nut, and also makes it easier to fasten the winch bracket to the vehicle frame. Furthermore, because a limiting groove is provided on the inner top or bottom surface of the cavity, the nut slides horizontally within the limiting groove on the side facing the groove. The front and rear faces of the nut abut against the front and rear sides of the limiting groove, respectively, thus limiting the nut's forward and backward movement to prevent displacement. This facilitates the threaded connection between the bolt and nut when the bolt's thread is tightened, and also makes it easier to fasten the winch bracket to the vehicle frame.

[0010] In one possible implementation, the through hole is a waist-shaped hole that extends along the sliding direction of the nut relative to the limiting groove. By setting the through hole as a waist-shaped hole, when the bolt threaded portion passes through the through hole and is threadedly connected to the nut, the bolt threaded portion can have a certain amount of movable space along the extension direction of the through hole, thereby facilitating the alignment of the bolt threaded portion with the threaded hole in the nut and achieving threaded fastening with the nut.

[0011] This utility model also provides a vehicle winch, which includes the above-mentioned anti-loosening structure for the connecting nut. Attached Figure Description

[0012] Figure 1 This is the first three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle;

[0014] Figure 3 This is a second three-dimensional structural schematic diagram of the present invention;

[0015] Figure 4 for Figure 3 A magnified structural diagram of point B in the middle;

[0016] Figure 5 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 6 This is a schematic diagram of the three-dimensional structure of the limiting post;

[0018] Wherein: 1-Windlass bracket; 11-Support foot; 12-Cavity; 121-Limiting groove; 13-Through hole; 14-Insertion hole; 2-Nut; 3-Limiting post; 31-Conical surface. Detailed Implementation

[0019] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0020] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0021] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] See Figures 1-6 As shown in the figure, this application discloses a connecting nut anti-loosening structure, including a winch bracket 1; the rear side of the winch bracket 1 is provided with a plurality of support feet 11 arranged in an array, each support foot 11 is provided with a cavity 12 with an inner opening, each cavity 12 is provided with a nut 2, each nut 2 is rotatably limited with the corresponding support foot 11, and the rear side of each cavity 12 is provided with a through hole 13, the through hole 13 is used for the bolt shank to pass through and be threaded and fastened to the nut 2; the connecting nut anti-loosening structure also includes limiting components corresponding one-to-one with the plurality of cavities 12, each limiting component is provided at the opening end of the corresponding cavity 12 and fixed with the corresponding support foot 11, the limiting component is used to prevent the nut 2 from detaching from the cavity 12.

[0024] See you again Figures 1-5 As shown, the limiting component includes a limiting post 3; a socket 14 is provided on the rear side of the open end of the cavity 12, the limiting post 3 is inserted into the socket 14, and the front end of the limiting post 3 extends into the open end of the cavity 12; with this structure, when the limiting post 3 is inserted into the socket 14 from back to front, the limiting post 3 can be tightly fitted with the socket 14, and at the same time, the front end of the limiting post 3 can extend into the open end of the cavity 12, that is, the front end of the limiting post 3 can prevent the nut 2 from falling out of the cavity 12, that is, it can prevent the nut 2 from being lost, and it can facilitate the threaded connection between the bolt and the nut 2. In addition, in this embodiment, after the limiting post 3 is inserted into the socket 14 from back to front, the rear end of the limiting post 3 is completely located inside the socket 14.

[0025] See you again Figure 2 , Figure 4 and Figure 6As shown, the cross-section of the limiting post 3 forms a "C" shape. By adopting this structure, the limiting post 3 can have a certain elastic deformation capability. As the limiting post 3 is inserted into the socket 14 from back to front, it can shrink to a certain extent, which makes it easier to insert the limiting post 3 into the socket 14. After the limiting post 3 is inserted into the socket 14, it can spring back and tighten with the socket 14, thus achieving a tight fit between the limiting post 3 and the socket 14.

[0026] See you again Figure 5 and Figure 6 As shown, the front end of the limiting post 3 is provided with a tapered surface 31. The tapered surface 31 is used to cooperate with the wall of the insertion hole 14 for guidance so that the limiting post 3 can be inserted into the insertion hole 14 from back to front. With this structure, during the process of the limiting post 3 being inserted into the insertion hole 14 from back to front, the tapered surface 31 can cooperate with the wall of the insertion hole 14 for guidance so that the limiting post 3 can be inserted into the insertion hole 14 from back to front, which can facilitate the insertion process between the limiting post 3 and the insertion hole 14.

[0027] See you again Figures 1-5 As shown, nut 2 is a square nut, and both opposite faces of nut 2 in the vertical direction abut against the inner wall of cavity 12. A limiting groove 121 is provided on the inner top or bottom surface of cavity 12. Nut 2 is horizontally slidably connected to the limiting groove 121 on the side facing the limiting groove 121. The front and rear faces of nut 2 abut against the front and rear sides of the limiting groove 121, respectively. With this structure, since both opposite faces of nut 2 in the vertical direction abut against the inner wall of cavity 12, rotational limiting of nut 2 and support leg 11 can be achieved. That is, when the bolt thread is tightened with nut 2, rotation of nut 2 with bolt thread is prevented, thus facilitating the threaded connection between bolt and nut 2 and making it easier to fasten winch bracket 1 to the vehicle frame. Furthermore, because the concave… A limiting groove 121 is provided on the inner top or inner bottom surface of cavity 12. Nut 2 is horizontally slidably connected in limiting groove 121 on one side facing the limiting groove 121. The front end face and rear end face of nut 2 abut against the front side and rear side face of limiting groove 121, respectively, thereby limiting the front and rear of nut 2 to prevent the nut 2 from shifting back and forth. This facilitates the threaded connection between bolt and nut 2 when the bolt is threadedly fastened to nut 2, and also makes it easier to fasten winch bracket 1 to vehicle frame. In addition, in this embodiment, the limiting groove 121 on the inner wall of support foot 11 above winch bracket 1 is located on the inner bottom surface of the corresponding cavity 12, and the limiting groove 121 on the inner wall of support foot 11 below winch bracket 1 is located on the inner top surface of the corresponding cavity 12.

[0028] See you again Figures 3-5As shown, the through hole 13 is a waist-shaped hole, and the through hole 13 extends along the sliding direction of the nut 2 relative to the limiting groove 121. By setting the through hole as a waist-shaped hole, when the bolt threaded part passes through the through hole 13 and is threadedly connected to the nut 2, the bolt threaded part can have a certain amount of movable space along the extension direction of the through hole, so as to facilitate the alignment of the bolt threaded part with the threaded hole in the nut 2 and achieve threaded fastening with the nut 2.

[0029] This embodiment also discloses a vehicle winch, which includes the above-mentioned anti-loosening structure for the connecting nut.

[0030] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A connecting nut anti-off structure, comprising a winch support (1); the rear side of the winch support (1) is provided with a plurality of support feet (11) distributed in an array, the inside of each support foot (11) is provided with an inner-end-opened recess (12), each recess (12) is provided with a nut (2), each nut (2) is rotationally limited with the corresponding support foot (11), the rear side of each recess (12) is provided with a through hole (13) for the screw rod of a bolt to pass through and be threadedly fastened with the nut (2); characterized in that: The connecting nut anti-disengagement structure further comprises a limiting component corresponding to each of the cavities (12), each of the limiting components is arranged at the opening end of the corresponding cavity (12) and is fixed with the corresponding supporting leg (11), and the limiting component is used for blocking the nut (2) from disengaging from the cavity (12).

2. The connection nut anti-disengagement structure according to claim 1, characterized by: The limiting component comprises a limiting column (3); the rear side of the opening end of the cavity (12) is provided with a bushing (14), the limiting column (3) is inserted into the bushing (14), and the front end of the limiting column (3) extends into the opening end of the cavity (12).

3. The connection nut anti-disengagement structure according to claim 2, characterized by: The cross section of the limiting column (3) is formed in a "C" shape.

4. The connection nut anti-disengagement structure according to claim 3, characterized by: The front end of the limiting column (3) is provided with a tapered surface (31), the tapered surface (31) is used for cooperating with the hole wall of the bushing (14) to guide the limiting column (3) to be inserted into the bushing (14) from the rear to the front.

5. The connection nut anti-disengagement structure according to any one of claims 1 to 4, characterized by: The nut (2) is a square nut, and the two opposite surfaces of the nut (2) in the up-down direction are in abutment with the inner wall surface of the cavity (12); the inner top surface or the inner bottom surface of the cavity (12) is provided with a limiting groove (121), one side of the nut (2) facing the limiting groove (121) is horizontally and slidably connected in the limiting groove (121), and the front end surface and the rear end surface of the nut (2) are respectively in abutment with the front side surface and the rear side surface of the limiting groove (121).

6. The connection nut anti-disengagement structure according to claim 5, characterized by: The through hole (13) is a waist-shaped hole, and the through hole (13) extends along the sliding direction of the nut (2) relative to the limiting groove (121).

7. A winch for a vehicle, characterised in that: The vehicle winch comprises the connecting nut anti-disengagement structure according to any one of claims 1-6.

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