Adjustable self-locking wrench

Abstract

Summary of Specification This application discloses an adjustable self-locking wrench, relating to the field of hand tool technology. The wrench includes a metal base (23), a slider (14), a metal rod (1), and a locking assembly; the metal base is provided with a guide hole (18) for vertical sliding of the slider and a guide hole (3) for horizontal sliding of the metal rod, forming a clamping space between the slider and the metal base; the locking assembly includes metal rods (7), (8), and (9) and corresponding rubber blocks (4), (5), and (6), and the slider is provided with holes (11), (12), and (13). When the nut slides on the metal base, it pushes the slider to rise and the metal rod to move, causing the corresponding metal rod to slide into the corresponding hole to lock the slider, thereby automatically adapting to and locking nuts of different specifications without manual adjustment.

Description

Technical Field

[0001] This application relates to the field of hand tool technology, specifically to an adjustable self-locking wrench. Background Technology

[0002] A wrench is a common hand tool used to tighten or loosen fasteners such as nuts and bolts. In practical use, it is often necessary to deal with fasteners of various sizes, so the wrench must be able to adapt to different sizes of nut or bolt heads. Summary of the Invention

[0003] Technical problem: The technical problem to be solved by this application is how to enable a wrench to automatically adapt to nuts of different sizes and achieve self-locking without the need for manual adjustment of the opening size.

[0004] Technical solution: In order to solve the above technical problems, this application provides an adjustable self-locking wrench. The wrench is based on a metal base (23) as the basic component, and integrates a slider (14), a metal rod (1) and a locking component on it.

[0005] Regarding the slider engagement, a vertically extending guide hole (18) is provided on the metal base (23), and the slider (14) is assembled in the guide hole and can slide up and down along it. A rubber block (10) is installed between the upper end of the slider (14) and the top wall of the guide hole (18). A clamping space for accommodating the nut is left between the lower end of the slider (14) and the upper surface of the metal base (23).

[0006] Regarding the metal rod fitting, a horizontally extending guide hole (3) is provided on the metal base (23), and the metal rod (1) is fitted into the guide hole and can slide left and right along it. A rubber block (2) is installed between the right end of the metal rod (1) and the right end of the guide hole (3). The left end of the metal rod (1) extends into the above-mentioned clamping space and can be pushed by a nut that slides on the upper surface of the metal base (23).

[0007] Regarding the locking assembly, the assembly includes a metal rod (7). The assembly also includes a metal rod (8). The assembly also includes a metal rod (9). The assembly also includes a rubber block (4) that mates with the metal rod (7). The assembly also includes a rubber block (5) that mates with the metal rod (8). The assembly also includes a rubber block (6) that mates with the metal rod (9).

[0008] A horizontally extending guide hole (19) is provided on the metal base (23), and a metal rod (7) is fitted into the guide hole (19) and can slide. A horizontally extending guide hole (20) is also provided on the metal base (23), and a metal rod (8) is fitted into the guide hole (20) and can slide. A horizontally extending guide hole (21) is also provided on the metal base (23), and a metal rod (9) is fitted into the guide hole (21) and can slide.

[0009] Rubber block (4) is installed between metal rod (1) and metal rod (7). Rubber block (5) is installed between metal rod (1) and metal rod (8). Rubber block (6) is installed between metal rod (1) and metal rod (9).

[0010] The free end of the metal rod (7) rests against the side of the slider (14). The free end of the metal rod (8) rests against the side of the slider (14). The free end of the metal rod (9) rests against the side of the slider (14).

[0011] A hole (11) is provided on the side of the slider (14), and the hole (11) corresponds to and fits with the metal rod (7). A hole (12) is also provided on the side of the slider (14), and the hole (12) corresponds to and fits with the metal rod (8). A hole (13) is also provided on the side of the slider (14), and the hole (13) corresponds to and fits with the metal rod (9).

[0012] The hole (11) is located at a predetermined height in the vertical direction, and its position is configured such that when the slider (14) is lifted by the nut (16) to a height corresponding to the specification of the nut, the hole (11) is aligned with the metal rod (7), so that the metal rod (7) can slide into the hole (11) to lock the slider (14).

[0013] The hole (12) is located at a different height in the vertical direction than the hole (11), and its position is configured such that when the slider (14) is lifted by the nut (15) to a height corresponding to the specification of the nut, the hole (12) is aligned with the metal rod (8), so that the metal rod (8) can slide into the hole (12) to lock the slider (14).

[0014] The hole (13) is located at a different height in the vertical direction than both the hole (11) and the hole (12). Its position is configured such that when the slider (14) is lifted by the nut (17) to a height corresponding to the specification of the nut, the hole (13) is aligned with the metal rod (9), so that the metal rod (9) can slide into the hole (13) to lock the slider (14).

[0015] As an optional structure, a metal protrusion (22) can be provided at the left end of the metal rod (1). When the metal rod (1) slides to the right, the metal protrusion (22) presses against the surface of the slider (14) and relies on friction to help lock the slider (14). Beneficial effects

[0016] This application utilizes the sliding motion of the nut itself on the metal base (23) to simultaneously push the slider (14) vertically upward and the metal rod (1) horizontally. The metal rod (1) then pushes the metal rod (7) to the right via the rubber block (4). The metal rod (1) also pushes the metal rod (8) to the right via the rubber block (5). The metal rod (1) also pushes the metal rod (9) to the right via the rubber block (6). This allows the metal rod corresponding to the nut specification to automatically slide into the corresponding hole on the slider (14) when the slider (14) rises to the corresponding height, locking the slider (14). This enables automatic adaptation to nuts of different specifications and achieves self-locking without the need for manual adjustment of the opening size.

[0017] After the nut is removed, the rubber block (10) can push the slider (14) to reset. The rubber block (2) can push the metal rod (1) to reset. The rubber block (4) can push the metal rod (7) to reset. The rubber block (5) can push the metal rod (8) to reset. The rubber block (6) can push the metal rod (9) to reset. This restores the wrench to its initial state for easy use next time.

[0018] This application provides a metal protrusion (22) on the metal rod (1). When the metal rod (1) slides, the metal protrusion (22) presses against the surface of the slider (14) and relies on friction to assist in locking the slider (14), which helps to enhance the reliability of locking. Attached Figure Description Figure 1 is a schematic diagram of the overall structure of the adjustable self-locking wrench of the present invention.

Claims

1. An adjustable self-locking wrench, comprising a metal base (23), characterized in that, It also includes a slider (14), a metal rod (1), and a locking assembly; the metal base (23) is provided with a vertically extending guide hole (18), the slider (14) is slidably disposed in the guide hole (18), a rubber block (10) is provided between the upper end of the slider (14) and the top wall of the guide hole (18), and a clamping space for accommodating a nut is formed between the lower end of the slider (14) and the upper surface of the metal base (23); the metal base (23) is provided with a horizontally extending guide hole (3), the metal rod (1) is slidably disposed in the guide hole (3), and the right end of the metal rod (1) is connected to the right end of the guide hole (3). A rubber block (2) is provided between the metal rods. The left end of the metal rod (1) extends into the clamping space and can be pushed by a nut that slides on the metal base (23). The locking assembly includes a metal rod (7), a metal rod (8), a metal rod (9), a rubber block (4), a rubber block (5), and a rubber block (6). The metal base (23) is provided with a horizontally extending guide hole (19), and the metal rod (7) is slidably disposed in the guide hole (19). The metal base (23) is also provided with a horizontally extending guide hole (20). The metal rod (8) is slidably disposed within the guide hole (20); the metal base (23) is also provided with a horizontally extending guide hole (21), and the metal rod (9) is slidably disposed within the guide hole (21); the rubber block (4) is disposed between the metal rod (1) and the metal rod (7); the rubber block (5) is disposed between the metal rod (1) and the metal rod (8); the rubber block (6) is disposed between the metal rod (1) and the metal rod (9); the free end of the metal rod (7) abuts against the side of the slider (14); the free end of the metal rod (8) abuts against the side of the slider (14). On the surface; the free end of the metal rod (9) abuts against the side of the slider (14); the side of the slider (14) is provided with a hole (11) corresponding to the metal rod (7); the side of the slider (14) is also provided with a hole (12) corresponding to the metal rod (8); the side of the slider (14) is also provided with a hole (13) corresponding to the metal rod (9); the hole (11) is located at a predetermined height in the vertical direction and is configured to align with the metal rod (7) when the slider (14) is lifted to the corresponding height by the nut (16), so that the metal rod (7) can slide into the hole (11) to lock the slider (14).The hole (12) is located at a different height in the vertical direction than the hole (11), and is configured to align with the metal rod (8) when the slider (14) is lifted to the corresponding height by the nut (15), so that the metal rod (8) can slide into the hole (12) to lock the slider (14); the hole (13) is located at a different height in the vertical direction than both the hole (11) and the hole (12), and is configured to align with the metal rod (9) when the slider (14) is lifted to the corresponding height by the nut (17), so that the metal rod (9) can slide into the hole (13) to lock the slider (14).

2. The adjustable self-locking wrench according to claim 1, characterized in that, The metal rod (1) has a metal protrusion (22) at its left end. The metal protrusion (22) is configured to press against the surface of the slider (14) when the metal rod (1) slides to the right, thereby locking the slider (14) by friction.

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