Double-end wrench

Abstract

The utility model relates to a double-end wrench which comprises a handle, one end of the handle is provided with a static jaw clamp and a movable jaw clamp hinged to the static jaw clamp, the movable jaw clamp is provided with an arc-shaped area capable of containing a piece to be clamped, and the inner wall of the arc-shaped area is provided with ratchets. An annular clamping part is arranged at the other end of the handle, and ratchets are arranged on the clamping surface of the clamping part; the clamping part comprises a near-end clamping face and a far-end clamping face, the opposite faces of the two side portions of the near-end clamping face extend outwards, and the opposite faces of the two side portions of the far-end clamping face contract inwards. According to the utility model, the static jaw clamp and the movable jaw clamp at one end of the handle can be used for clamping pipes, bolts and nuts with larger sizes; the annular clamping part at the other end of the handle can be used for clamping small-sized pipes, bolts and nuts; the double-end wrench can be suitable for various working condition scenes, is not prone to slipping when used, and is simple in structure and high in functionality.

Description

Technical Field

[0001] The utility model relates to the field of tools for daily use, in particular to a double-ended wrench. Background Art

[0002] Existing conventional single-head pipe clamp wrenches are mostly single-head structures, which have some disadvantages. These disadvantages are mainly reflected in the following aspects:

[0003] 1. Size limitation: The jaw size of a single-head pipe clamp wrench is fixed and can only adapt to a specific pipe diameter range. The pipe diameter range it can clamp is mostly 14-30mm. It cannot effectively clamp water pipes outside this range.

[0004] 2. The inconvenience of changing tools: In actual work, if you encounter the need to clamp water pipes of different sizes, the user may need to carry multiple pipe clamps of different sizes, or change tools when necessary, which not only increases the burden of carrying tools, but also may affect work efficiency in an emergency.

[0005] 3. Space limitations: When working in a small or hard-to-reach space, changing tools may become more difficult, affecting work progress.

[0006] 4. Operation efficiency: Due to the limitations of single-head pipe clamp wrenches, users may need to spend more time selecting appropriate tools or adjusting tools, which reduces the efficiency of the operation.

[0007] 5. Applicability limitations: Single-head pipe clamp wrenches may not be suitable for all types of work environments, especially when you need to quickly adapt to different pipe diameters or work on multiple different sizes of water pipes.

[0008] Prior art patent: CN2670059Y, discloses a universal wrench, which is a single-head pipe wrench and has relatively limited usage scenarios. Utility Model Content

[0009] The purpose of the utility model is to provide a double-ended wrench to solve the problems raised in the above background technology.

[0010] The utility model solves the technical problem by adopting the following technical scheme: a double-ended wrench, comprising a handle, one end of which is provided with a static jaw clamp and a movable jaw clamp hinged to the static jaw clamp, the movable jaw clamp having an arc-shaped area for accommodating a part to be clamped, and the inner wall of the arc-shaped area is provided with ratchet teeth;

[0011] An annular clamping portion is arranged at the other end of the handle, and a ratchet is arranged on the clamping surface of the clamping portion; the clamping portion includes a proximal clamping surface and a distal clamping surface, and the opposite surfaces of the two side portions of the proximal clamping surface are extended outward, and the opposite surfaces of the two side portions of the distal clamping surface are contracted inward.

[0012] The preferred solution is as follows:

[0013] The surface of the distal clamping surface is provided with ratchet teeth.

[0014] The surface of the proximal clamping surface is provided with ratchet teeth.

[0015] The teeth of the ratchet are protruding in an outward extending direction, and the teeth on both sides of the corresponding surface are symmetrically arranged.

[0016] The teeth of the ratchet are protruding inwardly extending directions, and the teeth on both sides of the corresponding surface are symmetrically arranged.

[0017] A ratchet is a mechanical structure designed to increase friction to prevent slipping. This ensures that the parts maintain relative position during movement and prevent slippage due to vibration or impact. Ratchets can be straight or helical, and provide a stable connection by engaging with the part to be clamped. Ratchets can also be used to prevent reverse movement, ensuring that when the knob is clamped, it can only move in one direction to prevent slipping during the twisting process.

[0018] The clamping part is plug-connected with the handle, so it is convenient to replace the clamping parts of different models and sizes.

[0019] There is an included angle between the distal end surface of the distal clamping surface and the end surfaces on both sides, and the included angle is 95-135 degrees.

[0020] A ratchet is arranged on the clamping surface of the distal end surface of the distal clamping surface.

[0021] The clamping part is provided with a strong magnet or is made of a material with strong magnetic attraction.

[0022] The side lengths of the two sides of the distal clamping surface are longer than the side lengths of the two sides of the proximal clamping surface. Such irregular hexagonal annular clamping portion openings can adapt to different pipe diameters.

[0023] The beneficial effects of the double-ended wrench of the utility model mainly include the following points:

[0024] 1. Versatility: Since the double-ended wrench has different types of openings at both ends, it can adapt to a variety of different sizes of pipes, bolts and nuts, reducing the need to carry multiple wrenches; specifically, the static jaw clamp and the dynamic jaw clamp at one end of the handle can be used to clamp larger-sized pipes, bolts and nuts; the annular clamping part at the other end of the handle can be used to clamp smaller-sized pipes, bolts and nuts; it can be used in a variety of working scenarios.

[0025] 2. Save space: In a tool box or tool bag, a double-ended wrench takes up less space than carrying multiple single-ended wrenches, making it easier to carry and store.

[0026] 3. Improve efficiency: Users can quickly switch to the appropriate size without changing tools, which is very useful when multiple bolts of different sizes need to be tightened or loosened quickly.

[0027] 4. Durability: High-quality double-ended wrenches are usually made of durable materials, such as chrome-vanadium steel, which allows them to withstand high torque while maintaining durability.

[0028] 5. Economical: Since a double-ended wrench can replace multiple single-ended wrenches, it may be more economical when purchasing.

[0029] 6. Reduced tool changes: In some cases, users may only need to use one tool to complete the job, reducing the need to switch between different tools.

[0030] 7. Suitable for emergency situations: When you don't carry multiple tools, the double-ended wrench can be used as a versatile backup tool.

[0031] 8. Easy to use: For users who are not familiar with various tools, the double-ended wrench simplifies the process of selecting the appropriate tool.

[0032] 9. Adaptability: The design of the double-ended wrench allows it to adapt to different working conditions and environments.

[0033] 10. Reduce tool wear: Since double-ended wrenches can reduce dependence on other tools, this helps reduce overall tool wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0035] Figure 1 It is a structural schematic diagram of the utility model;

[0036] Figure 2 It is a three-dimensional diagram of the utility model;

[0037] Figure 3 It is an enlarged schematic diagram of a local structure of the utility model;

[0038] The symbols in the accompanying drawings are described as follows:

[0039] 1. Static jaw clamp, 2. Moving jaw clamp, 3. Ratchet, 4. Handle, 5. Proximal clamping surface, 6. Distal clamping surface, 7. Distal end surface. DETAILED DESCRIPTION

[0040] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0041] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0042] Embodiment 1:

[0043] A double-ended wrench comprises a handle 4, one end of which is provided with a stationary jaw clamp 1 and a movable jaw clamp 2 hingedly connected to the stationary jaw clamp 1, wherein the movable jaw clamp 2 has an arc-shaped area for accommodating a part to be clamped, and the inner wall of the arc-shaped area is provided with ratchet teeth 3;

[0044] The other end of the handle 4 is provided with an annular clamping portion, and a ratchet 3 is provided on the clamping surface of the clamping portion; the clamping portion includes a proximal clamping surface 5 and a distal clamping surface 6, and the opposite surfaces of the two side portions of the proximal clamping surface 5 are extended outward, and the opposite surfaces of the two side portions of the distal clamping surface 6 are contracted inward.

[0045] The surface of the distal clamping surface 6 is provided with ratchet teeth 3. The surface of the proximal clamping surface 5 is not provided with ratchet teeth 3.

[0046] The teeth of the ratchet 3 are protruding in an outward extending direction, and the teeth on both sides of the corresponding surface are symmetrically arranged.

[0047] The ratchet 3 is a mechanical structure designed to increase friction to prevent sliding. This ensures that the parts maintain relative positions during movement and prevents slippage due to vibration or impact. The ratchet 3 can be straight teeth or helical teeth, and provides a stable connection by engaging with the part to be clamped. The ratchet 3 can also be used to prevent reverse movement, ensuring that when the knob is clamped, it can only move in one direction to prevent slipping during the twisting process.

[0048] The clamping part is plug-connected with the handle 4, so it is convenient to replace the clamping parts of different models and sizes.

[0049] There is an included angle between the distal end surface 7 of the distal clamping surface 6 and the end surfaces on both sides, and the included angle is 95-135 degrees.

[0050] The clamping part is provided with a strong magnet or the clamping part is made of a material with strong magnetic attraction. The strong magnet can adsorb the wrench to the metal surface to prevent the wrench from falling due to hand slippage or other reasons during use. When the wrench or tool needs to be replaced quickly, the strong magnet can help the user easily pick up or put down the wrench, improving work efficiency. In some cases, the strong magnet can also be used as a temporary magnetic tool, such as adsorbing small metal objects such as screws or nails, to improve work efficiency.

[0051] The side lengths of the two sides of the distal clamping surface 6 are longer than the side lengths of the two sides of the proximal clamping surface 5. Such irregular hexagonal clamping openings can adapt to different pipe diameters and can be used to screw bolts and nuts of different sizes.

[0052] Embodiment 2:

[0053] This embodiment is basically the same as the embodiment 1, except that a ratchet 3 is provided on the clamping surface of the distal end surface 7 of the distal clamping surface 6 .

[0054] Embodiment 3:

[0055] This embodiment is basically the same as the embodiment 1, except that the teeth of the ratchet 3 are protruding in the inward extension direction, and the teeth on both sides of the corresponding surface are symmetrically arranged.

[0056] Embodiment 4:

[0057] This embodiment is basically the same as the first embodiment, except that ratchet teeth 3 are provided on the surface of the proximal clamping surface 5 .

[0058] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A double-ended wrench, characterized in that: The invention comprises a handle (4), one end of which is provided with a stationary jaw clamp (1), and a movable jaw clamp (2) hingedly connected to the stationary jaw clamp (1), wherein the movable jaw clamp (2) has an arc-shaped area capable of accommodating a part to be clamped, and the inner wall of the arc-shaped area is provided with ratchet teeth (3); The other end of the handle (4) is provided with an annular clamping portion, and a ratchet (3) is provided on the clamping surface of the clamping portion; the clamping portion comprises a proximal clamping surface (5) and a distal clamping surface (6), and the opposing surfaces of the two side portions of the proximal clamping surface (5) are in an outwardly extending shape, and the opposing surfaces of the two side portions of the distal clamping surface (6) are in an inwardly contracted shape.

2. The double-ended wrench according to claim 1, characterized in that: The surface of the distal clamping surface (6) is provided with ratchet teeth (3).

3. The double-ended wrench according to claim 1, characterized in that: The surface of the proximal clamping surface (5) is provided with ratchet teeth (3).

4. The double-ended wrench according to claim 2 or 3, characterized in that: The teeth of the ratchet (3) are protruding in an outward extending direction, and the teeth on both sides of the corresponding surface are symmetrically arranged.

5. The double-ended wrench according to claim 2 or 3, characterized in that: The teeth of the ratchet (3) are protruding in an inwardly extending direction, and the teeth on both sides of the corresponding surface are symmetrically arranged.

6. The double-ended wrench according to claim 1, characterized in that: The clamping portion is plug-connected with the handle.

7. The double-ended wrench according to claim 1, characterized in that: There is an included angle between the distal end surface (7) of the distal clamping surface (6) and the end surfaces on both sides, and the included angle is 95-135 degrees.

8. The double-ended wrench according to claim 1, characterized in that: A ratchet (3) is provided on the clamping surface of the distal end surface (7) of the distal clamping surface (6).

9. The double-ended wrench according to claim 1, characterized in that: The clamping part is provided with a strong magnet or is made of a material with strong magnetic attraction.

10. The double-ended wrench according to claim 1, characterized in that: The side lengths of the two side portions of the distal clamping surface (6) are longer than the side lengths of the two side portions of the proximal clamping surface (5).

Images