Wrench convenient to disassemble and assemble

Abstract

The utility model discloses a spanner convenient to disassemble and assemble, which belongs to the technical field of hardware and comprises a spanner handle, one end of the spanner handle is fixedly connected with a base, a fixed head is integrally formed on the base, an adjustable head is arranged on the base, and the fixed head and the adjustable head are symmetrically arranged. An adjusting assembly is arranged in an inner cavity of the wrench handle and comprises a connecting rod, a movable groove communicated with the inner cavity of the wrench handle is formed in the base, and one end of the connecting rod is rotationally connected with the inner wall of the movable groove. Compared with an existing wrench, a screw and a gear are difficult to be contaminated by dust, the clamping probability is low, the service life of the device can be effectively prolonged, the use experience of a user is optimized, the rotating rod is arranged on the wrench handle, the space on the base can be saved, the flexibility of the device is improved, and meanwhile the convenience when the user operates the rotating rod is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware, and more specifically, to a wrench that is convenient for disassembly and assembly. Background Technique

[0002] A wrench is a commonly used installation and disassembly tool, which is a manual tool that uses the lever principle to turn bolts, screws, nuts, and other threaded fasteners or nuts with open or socketed fasteners.

[0003] Existing wrenches are mostly composed of a wrench handle, a fixed head, and an adjustable head. Among them, the adjustable head is mostly driven by a wrench screw. The user needs to push the wrench screw with the thumb to rotate, and then control the movement of the adjustable head to adjust the distance between the adjustable head and the fixed head, so that the wrench can be suitable for fasteners of different sizes. However, in actual use, since the wrench screw is exposed, dust and dirt are likely to enter its interior. Due to the threaded fit between the adjustable head and the wrench screw, once contaminated with dust, it is very easy to cause jamming. This also leads to the fact that after long-term use of existing wrenches, the wrench screws are generally difficult to rotate, which brings inconvenience to use.

[0004] Therefore, in view of the above problems, a wrench that is convenient for disassembly and assembly is proposed. Content of the Utility Model

[0005] 1. Technical Problems to be Solved

[0006] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a wrench that is convenient for disassembly and assembly. In this solution, the rotation of the rotating rod is used to indirectly drive the rotation of the gear, so as to realize the adjustment of the distance between the fixed head and the adjustable head. Compared with the existing wrench screw, the gear is less likely to be contaminated with dust and has a lower probability of jamming, which can effectively improve the service life of the device and optimize the user experience. The rotating rod is arranged on the wrench handle, which can save space on the base, improve the flexibility of the device, and at the same time improve the convenience of the user when operating the rotating rod.

[0007] 2. Technical Solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A wrench that is convenient for disassembly and assembly, including a wrench handle. One end of the wrench handle is fixedly connected with a base. A fixed head is integrally formed on the base, and an adjustable head is arranged on the base. The fixed head and the adjustable head are symmetrically arranged. An adjusting component is arranged in the inner cavity of the wrench handle. The adjusting component includes a connecting rod. An activity groove communicated with the inner cavity of the wrench handle is formed on the base. One end of the connecting rod is rotatably connected with the inner wall of the activity groove, and a gear and a rotating rod are respectively fixedly connected to the outer end of the connecting rod. A toothed plate is slidably connected to the inner wall of the activity groove. The gear is meshed with the toothed plate. A limiting block is fixedly connected between the adjustable head and the toothed plate.

[0010] Furthermore, one end of the connecting rod far away from the activity groove extends into the inner cavity of the wrench handle and is rotatably connected with the inner wall of the wrench handle. The rotating rod is arranged in the inner cavity of the wrench handle, and a plurality of anti-slip grooves are engraved on the outer end of the rotating rod. A through hole communicated with its inner cavity is formed on the wrench handle. The through hole is matched with the rotating rod.

[0011] Furthermore, a limiting hole communicated with the activity groove is formed on the base. The limiting block is matched with the limiting hole.

[0012] Furthermore, a limiting post is slidably connected to one end of the wrench handle far away from the through hole. A spring is sleeved on the outer end of the limiting post. Two ends of the spring are respectively fixedly connected with the wrench handle and the limiting post.

[0013] Furthermore, one end of the limiting post extends into the inner cavity of the wrench handle, and a toothed block is integrally formed at one end of the limiting post. The toothed block is meshed with the rotating rod.

[0014] Furthermore, support blocks are integrally formed at one ends of the fixed head and the adjustable head far away from the wrench handle. One ends of the support blocks far away from the wrench handle are arranged in a plane.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present utility model are as follows:

[0017] In this solution, the gear is indirectly driven to rotate by rotating the rotating rod, so as to realize the adjustment of the distance between the fixed head and the adjustable head. Compared with the existing wrench spiral, it is difficult for the gear to be contaminated with dust, and the probability of jamming is relatively low, which can effectively improve the service life of the device and optimize the user experience. Setting the rotating rod on the wrench handle can save space on the base, improve the flexibility of the device, and at the same time improve the convenience of the user when operating the rotating rod. Brief description of the drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2Schematic diagram of the partial sectional structure of the present utility model;

[0020] Figure 3 Schematic diagram of the partial exploded structure of the present utility model;

[0021] Figure 4 Schematic diagram of the partial structure of the limit post and spring of the present utility model;

[0022] Figure 5 Schematic diagram of the structure of the present utility model during operation.

[0023] 1. Lever handle; 2. Base; 3. Fixed head; 4. Adjustable head; 5. Through hole; 6. Adjusting assembly; 601. Rotating rod; 602. Connecting rod; 603. Gear; 7. Movable groove; 8. Rack; 9. Limit hole; 10. Support block; 11. Limit post; 12. Spring. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] Embodiment:

[0028] Please refer to Figures 1-5, A wrench that is easy to disassemble and assemble, including a wrench handle 1. One end of the wrench handle 1 is fixedly connected to a base 2. A fixed head 3 is integrally formed on the base 2, and an adjustable head 4 is arranged on the base 2. The fixed head 3 and the adjustable head 4 are symmetrically arranged. An adjustment assembly 6 is arranged in the inner cavity of the wrench handle 1. The adjustment assembly 6 includes a connecting rod 602. An activity slot 7 communicating with the inner cavity of the wrench handle 1 is opened on the base 2. One end of the connecting rod 602 is rotatably connected to the inner wall of the activity slot 7, and a gear 603 and a rotating rod 601 are respectively fixedly connected to the outer end of the connecting rod 602. A toothed plate 8 is slidably connected to the inner wall of the activity slot 7. The gear 603 is meshed with the toothed plate 8. A limiting block is fixedly connected between the adjustable head 4 and the toothed plate 8. The end of the connecting rod 602 away from the activity slot 7 extends into the inner cavity of the wrench handle 1 and is rotatably connected to the inner wall of the wrench handle 1. The rotating rod 601 is arranged in the inner cavity of the wrench handle 1, and a plurality of anti-slip grooves are engraved on the outer end of the rotating rod 601. A through hole 5 communicating with its inner cavity is opened on the wrench handle 1. The through hole 5 is matched with the rotating rod 601. A limiting hole 9 communicating with the activity slot 7 is opened on the base 2. The limiting block is matched with the limiting hole 9.

[0029] A wrench is a commonly used installation and disassembly tool. It is a manual tool that uses the lever principle to twist bolts, screws, nuts, and other threaded fasteners or nut-opening or socket-hole fasteners with threaded grips. Existing wrenches are mostly composed of a wrench handle, a fixed head, and an adjustable head. Among them, the adjustable head is mostly driven by a wrench screw. Since the wrench screw is exposed outside, dust and dirt are likely to enter its interior, resulting in jamming. This also causes the wrench screw of existing wrenches to generally be difficult to rotate after long-term use, bringing inconvenience to use.

[0030] In this solution, the rotating rod 601 is exposed through the through hole 5. The user can rotate the rotating rod 601 with the thumb, drive the connecting rod 602 to rotate through the rotating rod 601, and then drive the gear 603 to rotate through the connecting rod 602. The gear 603 can drive the toothed plate 8 to slide in the movable slot 7. The toothed plate 8 drives the limiting block to slide in the limiting hole 9, and then drives the adjustable head 4 to move, adjusting the distance between the adjustable head 4 and the fixed head 3. Thus, the device can use the fixed head 3 and the adjustable head 4 to clamp fasteners of different sizes and perform installation and disassembly. Since the rotating rod 601 indirectly drives the gear 603 to rotate through the connecting rod 602, and the movable slot 7 where the gear 603 is located is at a certain distance from the through hole 5, plus the connection between the movable slot 7 and the inner cavity of the wrench handle 1 is blocked by the connecting rod 602, it is difficult for external dust to enter the inner cavity of the movable slot 7 through the through hole 5. The thickness of the toothed plate 8 is sufficient to block the limiting hole 9. Therefore, no matter which part of the inner cavity of the movable slot 7 the toothed plate 8 slides to, the toothed plate 8 can block the limiting hole 9, and thus external dust cannot enter the movable slot 7 through the limiting hole 9 either. As a result, the situation where the activities of the gear 603 and the toothed plate 8 are stuck due to the influence of dust hardly occurs, which can effectively improve the service life of the device and optimize the user experience of the device.

[0031] Since the base 2, the fixed head 3, and the adjustable head 4 all come into contact with the workpiece during operation, if the rotating rod 601 for adjusting the distance between the fixed head 3 and the adjustable head 4 is arranged on the base 2 by referring to the existing wrench, it will inevitably cause inconvenience. Therefore, in this solution, the rotating rod 601 is arranged on the wrench handle 1, which can not only save space on the base 2 but also improve the convenience of the user when operating the rotating rod 601.

[0032] Please refer to Figure 4 , a limiting post 11 is slidably connected to the end of the wrench handle 1 far from the through hole 5. A spring 12 is sleeved on the outer end of the limiting post 11. The two ends of the spring 12 are respectively fixedly connected to the wrench handle 1 and the limiting post 11. One end of the limiting post 11 extends into the inner cavity of the wrench handle 1, and a toothed block is integrally formed at one end of the limiting post 11. The toothed block is meshed with the rotating rod 601.

[0033] The limiting post 11 is embedded in the inner cavity of the wrench handle 1 under the elastic force of the spring 12. The toothed block on the limiting post 11 is meshed with the rotating rod 601 to prevent the rotation of the rotating rod 601. At this time, in order to prevent the fixed head 3 and the adjustable head 4 from moving away under the reverse thrust of the fastener when the user installs and disassembles the fastener, before rotating the rotating rod 601, the user needs to pull the limiting post 11 to disengage the teeth from the rotating rod 601.

[0034] Please refer to Figure 3 and 5The fixed head 3 and the adjustable head 4 are both integrally formed with a support block 10 at one end away from the wrench handle 1, and the support block 10 is arranged in a plane at one end away from the wrench handle 1.

[0035] In some usage scenarios, due to obstacles on the surface of the workpiece, the wrench cannot rotate the fastener in a horizontal state. Users usually choose to stand the wrench up and place it vertically so that the wrench has space to rotate. The head of the fixed head of the existing wrench is mostly arc-shaped. When placed vertically, the head of the fixed head abuts against the workpiece, and the arc-shaped fixed head cannot form a sufficient contact area with the workpiece. As a result, when the user turns the wrench, the wrench is easily separated from the fastener. In this solution, support blocks 10 are provided at the heads of the fixed head 3 and the adjustable head 4. The provision of the support blocks 10 increases the contact area between the fixed head 3 and the adjustable head 4 and the workpiece, thereby making the wrench more stable when placed vertically.

[0036] Working principle:

[0037] When in use, the user rotates the rotating rod 601 with his thumb, and the rotating rod 601 drives the connecting rod 602 to rotate, and then the connecting rod 602 drives the gear 603 to rotate, and the gear 603 can drive the tooth plate 8 to slide in the movable groove 7, and the tooth plate 8 drives the limit block to slide in the limit hole 9, and then drives the adjustable head 4 to move, and adjusts the distance between the adjustable head 4 and the fixed head 3, so that the device can use the fixed head 3 and the adjustable head 4 to clamp fasteners of different sizes and install and disassemble them. When the user places the wrench vertically to clamp the fastener, the support block 10 can increase the contact area between the fixed head 3 and the adjustable head 4 and the workpiece, so that the wrench is more stable when placed vertically.

[0038] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A wrench that is convenient for disassembly and assembly, comprising a wrench handle (1), characterized in that: One end of the wrench handle (1) is fixedly connected to a base (2). A fixed head (3) is integrally formed on the base (2), and an adjustable head (4) is provided on the base (2). The fixed head (3) and the adjustable head (4) are arranged symmetrically. An adjusting assembly (6) is disposed in the inner cavity of the wrench handle (1). The adjusting assembly (6) includes a connecting rod (602). An activity groove (7) communicating with the inner cavity of the wrench handle (1) is formed on the base (2). One end of the connecting rod (602) is rotatably connected to the inner wall of the activity groove (7). A gear (603) and a rotating rod (601) are respectively fixedly connected to the outer end of the connecting rod (602). A toothed plate (8) is slidably connected to the inner wall of the activity groove (7). The gear (603) is meshed with the toothed plate (8). A limiting block is fixedly connected between the adjustable head (4) and the toothed plate (8).

2. The wrench that is easy to disassemble and assemble according to claim 1 is characterized in that: The end of the connecting rod (602) far from the activity groove (7) extends into the inner cavity of the wrench handle (1) and is rotatably connected to the inner wall of the wrench handle (1). The rotating rod (601) is disposed in the inner cavity of the wrench handle (1). A plurality of anti-slip grooves are engraved on the outer end of the rotating rod (601). A through hole (5) communicating with its inner cavity is formed on the wrench handle (1). The through hole (5) is matched with the rotating rod (601).

3. The wrench that is easy to disassemble and assemble according to claim 1 is characterized in that: A limiting hole (9) communicating with the activity groove (7) is formed on the base (2). The limiting block is matched with the limiting hole (9).

4. The wrench that is easy to disassemble and assemble according to claim 1 is characterized in that: A limiting column (11) is slidably connected to the end of the wrench handle (1) far from the through hole (5). A spring (12) is sleeved on the outer end of the limiting column (11). Two ends of the spring (12) are respectively fixedly connected to the wrench handle (1) and the limiting column (11).

5. The wrench that is easy to disassemble and assemble according to claim 4, wherein: One end of the limiting column (11) extends into the inner cavity of the wrench handle (1). A toothed block is integrally formed at one end of the limiting column (11). The toothed block is meshed with the rotating rod (601).

6. The wrench that is easy to disassemble and assemble according to claim 1 is characterized in that: The fixed heads (3) and the adjustable heads (4) are integrally formed with supporting blocks (10) at their ends far from the wrench handle (1). The end of the supporting block (10) far from the wrench handle (1) is arranged as a plane.

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