Tow hook reinforcing structure

Abstract

The utility model relates to the technical field of tow hooks, in particular to a tow hook reinforcing structure which comprises a hook body, a threaded body is fixedly connected to the rear end of the hook body, a limiting box is fixedly connected to the surface of one side of the hook body, a limiting spring is arranged in an inner cavity of the limiting box, and a movable plate is clamped, embedded and slidably connected to the inner cavity of the limiting box. A limiting column is fixedly connected to the surface of the rear side of the moving plate in a penetrating mode, inserting boxes are movably connected to the surfaces of the two sides of the hook body in a penetrating mode, rotating screws are connected to the surfaces of one sides of the inserting boxes in a penetrating and threaded mode, and extending plates are fixedly connected to the surfaces of the outer sides of the rotating screws; by arranging the limiting box, the moving plate, the limiting column, the inserting box, the rotating screw rod, the triangular block, the attaching plate and the connecting rod, the connecting tightness of the inserting box and the hook body is enhanced conveniently in a labor-saving mode, on one hand, the inserting box is prevented from being separated from the hook body, and on the other hand, the inserting box is prevented from shaking after being connected with the hook body.

Description

Technical Field

[0001] The utility model relates to a trailer hook reinforcement structure and belongs to the technical field of trailer hooks. Background Art

[0002] A trailer hook, also known as a trailer ball, ball-type rear tow hook, or tow bar, usually consists of two parts: a fixed bracket fixed to the rear or front anti-collision beam of the vehicle and a ball or buckle of a high-strength trailer ball. If a vehicle is stuck in the sand and cannot escape, or loses power due to a breakdown, the trailer hook can also be used to tow the vehicle out of trouble. The trailer hook is connected to the towing vehicle with a tow rope to help the vehicle escape. Existing trailer hooks are commonly one-piece or spliced. The spliced ​​type has the advantage of being replaceable and having a longer service life.

[0003] The existing technology has the following problems:

[0004] When the existing spliced ​​trailer hook is used, the inserted splicing mechanism is generally connected to the hook body by bolts. This connection method is time-consuming and labor-intensive, and the spliced ​​components and the hook body are not stable enough, which is not conducive to popularization and use. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a trailer hook reinforcement structure.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a trailer hook reinforcement structure, including a hook body, the rear end of the hook body is fixedly connected to a threaded body, one side surface of the hook body is fixedly connected to a limit box, the inner cavity of the limit box is provided with a limit spring, the inner cavity of the limit box is embedded with a movable plate in a sliding connection, the rear side surface of the movable plate passes through a fixedly connected limit column, the two side surfaces of the hook body pass through an insertion box that is movably connected, the one side surface of the insertion box passes through a rotating screw that is threadedly connected, the outer surface of the rotating screw is fixedly connected to an extension plate, the one side surface of the extension plate is provided with a top screw, the rotating screw is movably connected to a triangular block away from the extension plate through a bearing, the front and rear side surfaces of the triangular block are provided with a fitting plate, and the fitting plate is fixedly connected to a connecting rod on the side surface away from the triangular block.

[0007] Preferably, one end of the limit spring is fixedly connected to the movable plate, and one end of the limit spring away from the movable plate is fixedly connected to the limit box.

[0008] Preferably, one end of the limiting column is fixedly connected to the pulling rod, and the outer surface of the limiting column away from the end of the pulling rod is threadedly connected to a screw ring.

[0009] Preferably, a limiting hole matching the structural size of the limiting column is formed through the front surface of the insertion box, and ear plates are fixedly connected to the front and rear surfaces of the insertion box.

[0010] Preferably, one end of the top screw is threadedly connected to the extension plate, and one end of the top screw is fixedly connected to a non-slip soft layer.

[0011] Preferably, a clamping block is fixedly connected to a surface of one side of the laminating plate close to the triangular block, and the front and rear side surfaces of the triangular block are both provided with clamping grooves matching the structural dimensions of the clamping block.

[0012] Preferably, the front and rear side surfaces of the insertion box are both provided with through grooves matching the structural dimensions of the connecting rod, and the outer side surface of the connecting rod is a smooth polished surface.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides a limit box, a movable plate, a limit column, an insertion box, a rotating screw, a triangular block, a fitting plate and a connecting rod, which saves effort and conveniently strengthens the tightness of the connection between the insertion box and the hook body, on the one hand, avoiding the separation of the insertion box and the hook body, and on the other hand, avoiding shaking after the insertion box and the hook body are connected. The limit column is inserted through the insertion box, and the connecting rod extends from the insertion box and is inserted into the hook body, so that the connection between the insertion box and the hook body is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the specific embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the overall hook body of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the internal details of the limit box in the utility model;

[0019] Figure 4 This is a schematic structural diagram of the internal details of the insert box in the present invention;

[0020] Figure 5 For this utility model Figure 4 Schematic diagram of the structure at point A.

[0021] In the figure: 1. hook body; 2. threaded body; 3. limit box; 4. limit spring; 5. movable plate; 6. limit column; 7. insertion box; 8. rotating screw; 9. extending plate; 10. top screw; 11. triangular block; 12. fitting plate; 13. connecting rod; 14. pulling rod; 15. screw ring; 16. embedding block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0023] See also Figure 1-5 The utility model provides the following technical solutions: a trailer hook reinforcement structure, including a hook body 1, a threaded body 2 is fixedly connected to the rear end of the hook body 1, a limit box 3 is fixedly connected to the surface of one side of the hook body 1, a limit spring 4 is provided in the inner cavity of the limit box 3, a movable plate 5 is slidably connected to the inner cavity of the limit box 3, and the rear side surface of the movable plate 5 passes through a fixed limit column 6, and an insertion box 7 is movably connected to the two side surfaces of the hook body 1, and a rotating screw 8 is threadedly connected to the surface of the insertion box 7. The outer surface of the rotating screw 8 is fixedly connected to an extension plate 9, and a top screw 10 is provided on one side surface of the extension plate 9. The rotating screw 8 is movably connected to a triangular block 11 at one end away from the extension plate 9 through a bearing, and the front and rear side surfaces of the triangular block 11 are both provided with a fitting plate 12, and the fitting plate 12 is fixedly connected to a connecting rod 13 on the surface of the side away from the triangular block 11.

[0024] When in use, first pull the limit column 6 and the movable plate 5 combination by pulling the rod 14. At this time, the limit spring 4 is deformed and generates elastic force. Further, the insertion box 7 is inserted into the insertion slot on the hook body 1. At this time, the ear plate on the insertion box 7 is fitted and slidably connected with the hook body 1. Then release the pulling rod 14. At this time, the limit spring 4 returns to its original state, driving the movement of the movable plate 5 and the limit column 6. The limit column 6 just passes through the limit hole on the insertion box 7, splicing the insertion box 7 and the hook body 1 together.

[0025] It should be noted that: Figure 2 As shown, both sides of the hook body 1 are penetrated by insertion grooves that match the structural dimensions of the insertion box 7, and the front and rear side surfaces of the inner cavity of the right insertion groove are provided with grooves that match the structural dimensions of the connecting rod 13.

[0026] As an optimal technical solution for the trailer hook reinforcement structure of the utility model, one end of the limit spring 4 is fixedly connected to the movable plate 5, and the end of the limit spring 4 away from the movable plate 5 is fixedly connected to the limit box 3; one end of the limit column 6 is fixedly connected to the pull rod 14, and the outer surface of the limit column 6 away from the pull rod 14 is threadedly connected with a screw ring 15; the pull rod 14 can be used to pull the movement of the combination of the limit column 6 and the movable plate 5, squeeze the limit spring 4, and cause the limit spring 4 to deform.

[0027] As an optimal technical solution for the trailer hook reinforcement structure of the utility model, a limiting hole matching the structural size of the limiting column 6 is provided on the front surface of the insertion box 7, and ear plates are fixedly connected to the front and rear surfaces of the insertion box 7; the limiting column 6 passes through the limiting hole to preliminarily connect the insertion box 7 with the hook body 1.

[0028] As an optimal technical solution for the trailer hook reinforcement structure of the present invention, one end of the top screw 10 is threaded through and connected to the protruding plate 9, and one end of the top screw 10 is fixedly connected to a non-slip soft layer; the non-slip soft layer is a rubber soft layer, and the top screw 10 is threaded through and connected to the protruding plate 9. As the top screw 10 rotates, the non-slip soft layer is squeezed, and there is a large friction between the non-slip soft layer and the insertion box 7. At this time, the position of the combination of the protruding plate 9 and the rotating screw 8 is limited. Example

[0029] See also Figure 4 and Figure 5 The difference between this embodiment and embodiment 1 is that:

[0030] The bonding plate 12 is fixedly connected to the surface of one side of the triangular block 11 with an embedding block 16, and the front and rear side surfaces of the triangular block 11 are provided with a card slot that matches the structural size of the embedding block 16; the front and rear side surfaces of the insertion box 7 are provided with a through groove that matches the structural size of the connecting rod 13, and the outer surface of the connecting rod 13 is a smooth polished surface; when the triangular block 11 moves to the rightmost extreme position, the connecting rod 13 is away from the end of the bonding plate 12 and is flush with the surface of the insertion box 7, which ensures that the connecting rod 13 is always movably connected to the insertion box 7 during the movement of the triangular block 11 to prevent the triangular block 11 from rotating. When the triangular block 11 moves to the left, the embedding block 16 slides in the card slot on the triangular block 11.

[0031] The working principle and usage process of the present invention are as follows: when in use, after the insertion box 7 is inserted into the insertion groove of the hook body 1, the limiting column 6 is movably connected to the insertion box 7 through the screw ring 15, and then the screw ring 15 is threadedly connected to the outer surface of the limiting column 6 to prevent the limiting column 6 from moving easily. Further, the rotating screw 8 is rotated. At this time, as the rotating screw 8 rotates, the triangular block 11 moves to the left. At this time, the locking block 16 slides in the locking groove on the triangular block 11, and the connecting rod 13 gradually extends out of the insertion box 7 and connects it with the hook body 1. Then the top screw 10 is threadedly connected to the extension plate 9. As the top screw 10 rotates, the anti-slip soft layer is squeezed, and there is a large friction between the anti-slip soft layer and the insertion box 7, which limits the position of the combination of the extension plate 9 and the rotating screw 8 to prevent the rotating screw 8 from accidentally rotating. At this time, the hook body 1 is tightly connected to the insertion box 7 to form a stable trailer hook.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

[0033] In this document, relational terms such as first and second, etc., are used solely to distinguish one entity or operation from another entity or operation and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed or that are inherent to such process, method, article, or apparatus.

Claims

1. A trailer hook reinforcement structure, comprising a hook body (1), characterized in that: The rear end of the hook body (1) is fixedly connected to a threaded body (2), one side surface of the hook body (1) is fixedly connected to a limit box (3), an inner cavity of the limit box (3) is provided with a limit spring (4), the inner cavity of the limit box (3) is slidably connected to a movable plate (5), the rear side surface of the movable plate (5) passes through a fixed limit column (6), both side surfaces of the hook body (1) pass through an insertion box (7) for movably connection, a side surface of the insertion box (7) passes through a rotating screw (8) for threaded connection, the outer surface of the rotating screw (8) is fixedly connected to an extension plate (9), a side surface of the extension plate (9) is provided with a top screw (10), the rotating screw (8) is movably connected to a triangular block (11) at one end away from the extension plate (9) through a bearing, the front and rear side surfaces of the triangular block (11) are both provided with a fitting plate (12), and the fitting plate (12) is fixedly connected to a connecting rod (13) at one side surface away from the triangular block (11).

2. The trailer hook reinforcement structure according to claim 1, characterized in that: One end of the limit spring (4) is fixedly connected to the movable plate (5), and one end of the limit spring (4) away from the movable plate (5) is fixedly connected to the limit box (3).

3. The trailer hook reinforcement structure according to claim 1, characterized in that: One end of the limiting column (6) is fixedly connected to a pulling rod (14), and an outer surface of one end of the limiting column (6) away from the pulling rod (14) is sleeved with a screw ring (15) through a thread.

4. The trailer hook reinforcement structure according to claim 1, characterized in that: A limiting hole matching the structural dimensions of the limiting column (6) is provided through the front surface of the insertion box (7), and ear plates are fixedly connected to the front and rear side surfaces of the insertion box (7).

5. The trailer hook reinforcement structure according to claim 1, characterized in that: One end of the top screw (10) is threadedly connected to the extension plate (9), and one end of the top screw (10) is fixedly connected to a non-slip soft layer.

6. The trailer hook reinforcement structure according to claim 1, characterized in that: The bonding plate (12) is fixedly connected to a clamping block (16) on one side surface close to the triangular block (11), and the front and rear side surfaces of the triangular block (11) are both provided with clamping slots that match the structural dimensions of the clamping block (16).

7. The trailer hook reinforcement structure according to claim 1, characterized in that: The front and rear side surfaces of the insertion box (7) are both provided with through grooves matching the structural dimensions of the connecting rod (13), and the outer side surface of the connecting rod (13) is a smooth polished surface.

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