Special-shaped wrench

Abstract

The utility model provides a special-shaped spanner which comprises a first head portion and a force arm body, the first head portion is arranged at one end of the force arm body, a first clamping groove is formed in the first head portion, and the forming direction of the first clamping groove deviates from the force arm direction of the force arm body. According to the special-shaped wrench, the first clamping groove of the first head part is arranged to deviate from the force arm direction of the force arm main body, so that the first head part and the force arm main body are not in the same straight line, and when the force arm main body moves towards an object to be installed, the first clamping groove can clamp the object to be installed in the direction deviating from the force arm main body.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wrench technical field especially a special-shaped wrench. BACKGROUND

[0002] A wrench is a common hand tool widely used in mechanical assembly and maintenance fields. Traditional wrench design usually includes a fixed opening or an adjustable opening for tightening or loosening nuts and bolts. With the development of industrial automation and precision manufacturing, higher requirements are put forward for the functionality and efficiency of the wrench.

[0003] Because of the existing installation demand, the installation space may be narrow. When working in a narrow space, the use of the traditional wrench may be limited because its size and shape may not be suitable for a compact environment. Especially when the top space of the object to be installed is insufficient, the wrench cannot be clamped from the top of the object to be installed. And the side size of the object to be installed is too large, so the wrench is difficult to clamp. Therefore, a wrench that can adapt to narrow space is urgently needed. SUMMARY

[0004] The utility model provides a special-shaped wrench to solve the problem of the wrench use being limited in the prior art when the installation space is narrow.

[0005] The utility model provides a special-shaped wrench, including first head and force arm main part, first head is located one end of force arm main part, first head is equipped with first clamping groove, the setting direction of first clamping groove deviates the force arm direction of force arm main part.

[0006] According to the special-shaped wrench provided by the utility model, the setting direction of the first clamping groove is perpendicular to the force arm direction of the force arm main part.

[0007] According to the special-shaped wrench provided by the utility model, the special-shaped wrench further includes a second head, and the second head is arranged on the force arm main part and away from the first head.

[0008] According to the special-shaped wrench provided by the utility model, the second head is further provided with a second clamping groove, and the setting direction of the second clamping groove deviates the setting direction of the first clamping groove.

[0009] According to the special-shaped wrench provided by the utility model, the second clamping groove is set along the force arm direction of the force arm main part.

[0010] According to the special-shaped wrench provided by the utility model, the bottom surface of the first clamping groove is a plane.

[0011] According to the special-shaped wrench provided by the utility model, the bottom surface of the second clamping groove is a curved surface.

[0012] According to the special-shaped wrench, the outer edge of the first head portion is in an arc shape.

[0013] According to the special-shaped wrench, the strength of the first head portion is less than that of the force arm main body.

[0014] According to the special-shaped wrench, the first head portion is welded at the end of the force arm main body.

[0015] The special-shaped wrench comprises a first head portion and a force arm main body, and the first head portion is arranged at the end of the force arm main body. The first head portion is provided with a first clamping groove, and the opening direction of the first clamping groove deviates from the force arm direction of the force arm main body, so that the first clamping groove and the force arm main body are not in a straight line. The force arm direction of the force arm main body is usually the length direction of the force arm main body, and the force arm main body moves towards the object to be installed along the length direction. Because the direction of the first clamping groove is different from the force arm direction of the force arm main body, the first clamping groove can clamp the object to be installed from another direction. In the application, the opening direction of the first clamping groove deviates from the direction of the force arm main body, so that the special-shaped wrench can clamp the object to be installed from different directions, and the problem that it is difficult to clamp in a narrow space is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0017] Figure 1 It is a schematic view of the special-shaped wrench provided by the utility model.

[0018] Reference signs:

[0019] 1, first head portion; 11, first clamping groove;

[0020] 2, second head portion; 21, second clamping groove;

[0021] 3, force arm main body. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] The following is combined Figure 1 This utility model describes an irregularly shaped wrench, including a first head 1 and a lever arm body 3. The first head 1 is located at one end of the lever arm body 3, and the first head 1 is provided with a first slot 11. The opening direction of the first slot 11 is offset from the lever arm direction of the lever arm body 3.

[0024] like Figure 1 As shown, the overall shape of the lever arm body 3 is approximately cuboid. Along the length of the lever arm body 3, the first head 1 is located at one end. Arranging the first head 1 along the length of the lever arm body 3 maximizes the lever arm during use. Because the length direction is the direction with the largest dimension on the lever arm body 3, placing the first head 1 at one end of the length direction and applying force at the other end of the lever arm body 3 maximizes the distance between the force and the first head 1. Since the position of the first head 1 is the point of application of the force during use, maximizing the distance between the force and the first head 1 maximizes the distance between the force and the point of application, thus maximizing the lever arm and achieving a labor-saving effect.

[0025] In existing technology, wrenches typically extend along a straight line, consisting of a straight body and openings at both ends of the body. Because the openings align with the length of the body, they are used by aligning the openings with the object to be installed along the length, thus securing the object. However, since a typical wrench needs to move along its length towards the object, and the length of the wrench is usually large, sufficient space is required to hold it. Therefore, in confined spaces, the dimensions within the space are smaller than the length of the wrench, preventing the wrench from being aligned with the object along its length within the confined space. This means the openings cannot be aligned with the object, thus preventing it from securing and installing the wrench.

[0026] Therefore, in this embodiment, after the first head 1 is disposed at one end of the lever arm body 3, the opening direction of the first slot 11 of the first head 1 is set to deviate from the length direction of the lever arm body 3. Then, when clamping the object to be installed, the first head 1 can be arranged in a narrow space. Because the first head 1 clamps the object to be installed through the first slot 11, the clamping process requires aligning the first slot 11 with the object to be installed. Generally, the lever arm body 3 only has a large dimension in the length direction to increase the lever arm length, while the dimensions in other directions of the lever arm body 3 are generally smaller. Therefore, along the opening direction of the first slot 11, the dimension of the lever arm body 3 in that direction is smaller.

[0027] When the irregular-shaped wrench provided in this application needs to hold an object to be installed, firstly, the lever arm body 3 is brought close to the object to be installed along its length. Then, the first head 1 is positioned in the narrow space along the opening direction of the first slot 11, and the opening of the first slot 11 is aligned with the object to be installed. Finally, the first slot 11 is inserted into the object to be installed. Because the lever arm body 3 is smaller in the opening direction of the first slot 11, the first head 1 can be positioned in the narrow space along the opening direction of the first slot 11, thereby holding the object to be installed in place through the first slot 11.

[0028] In this embodiment, by changing the opening direction of the first slot 11, which deviates from the lever arm direction of the lever arm body 3, the size of the irregular wrench in the opening direction of the first slot 11 is reduced, allowing the first slot 11 to enter a narrow space and hold the object to be installed. At the same time, the first head 1 is still arranged along the length direction of the lever arm body 3, ensuring that the length of the lever arm is sufficient.

[0029] In one embodiment, the opening direction of the first slot 11 is perpendicular to the lever arm direction of the lever arm body 3.

[0030] like Figure 1 As shown, the first head 1 is arranged along the length of the lever arm body 3, and the first head 1 and the lever arm body 3 are located on the same plane. The opening direction of the first slot 11 is perpendicular to the length direction of the lever arm body 3, so the first slot 11 is opened along the width direction of the lever arm body 3. Opening the first slot 11 along the width direction of the lever arm body 3 can make the overall structural size smaller, without increasing the size of the irregular wrench in other directions, thus saving space.

[0031] For example, when the first slot 11 is opened along the thickness direction of the wrench, because the first slot 11 needs to accommodate and hold the object, its dimension along the thickness direction of the wrench will be larger than the thickness of the wrench, resulting in a significant increase in the overall size of the wrench in the thickness direction. However, in this embodiment, the first slot 11 is opened along the width direction of the lever arm body 3. Since the width direction of the wrench is generally much larger than its thickness direction, most of the size of the first slot 11 is within the width direction of the wrench, and the size of the first slot 11 protruding beyond the width direction is relatively small. Therefore, the size of the wrench is not increased excessively, and compared to other directions, the overall size of the wrench can be reduced.

[0032] In one embodiment, the irregular-shaped wrench further includes a second head 2, which is disposed on the lever arm body 3 at an end away from the first head 1. In one embodiment, the second head 2 also has a second slot 21, the opening direction of which deviates from the opening direction of the first slot 11. In one embodiment, the second slot 21 is opened along the lever arm direction of the lever arm body 3.

[0033] like Figure 1 As shown, both ends of the lever arm body 3 are equipped with heads. Along the length of the lever arm body 3, one end is the first head 1, and the other end is the second head 2. The second head 2 can serve as a gripping part for the user, therefore, elastic elements or similar components need to be incorporated into the second head 2 to increase its contact area and improve its comfort. Furthermore, the second head 2 can also be designed with different functions. For example, it can be designed as a screwdriver bit, thus giving it a different function from the first head 1. This further enhances the functionality of the custom-shaped wrench and improves its applicability.

[0034] like Figure 1 As shown, in this embodiment, the second head 2 still serves as the head of a wrench, used to hold an object. Therefore, the second head 2 also has a second slot 21, and the opening direction of the second slot 21 is different from the opening direction of the first slot 11. Because the opening direction of the second slot 21 is different from that of the first slot 11, the first slot 11 and the second slot 21 need to hold the object to be installed from two different directions. Therefore, when facing different installation requirements or different installation spaces, one of the first head 1 and the second head 2 can correspond to the desired location, thus achieving the desired hold.

[0035] Furthermore, in this embodiment, the second slot 21 is opened along the lever arm direction of the lever arm body 3. Since the lever arm direction of the lever arm body 3 is the same as the length direction of the lever arm body 3, and the length direction of the lever arm body 3 is the direction with the largest size on the irregular wrench, opening the second slot 21 along this direction can ensure that the overall size of the second slot 21 is within the length direction of the lever arm body 3, thereby minimizing the overall size of the irregular wrench.

[0036] In one embodiment, the bottom surface of the first slot 11 is a plane. In another embodiment, the bottom surface of the second slot 21 is an arc surface.

[0037] like Figure 1 As shown, the bottom surface of the first slot 11 is a flat surface. Since the first slot 11 typically needs to be inserted from above the object to be installed, and the upper surface of the object is usually flat, designing the bottom surface of the first slot 11 as a flat surface ensures a better fit between the first slot 11 and the object after insertion. Because the first slot 11 typically engages with a flat surface in this embodiment, the bottom surface of the first slot 11 is designed as flat. However, this is not a limitation; in different embodiments, the design needs to be modified according to the actual surface shape of the object to be installed to ensure a good fit between the first slot 11 and the object.

[0038] Similarly, the bottom surface of the second slot 21 is designed as a curved surface because the object to be inserted into the second slot 21 is curved in that direction. When the second slot 21 is aligned with the object to be installed, the second slot 21 moves toward the object to be installed, and then the second slot 21 fits against the object to be installed through its curved bottom surface, thereby making the engagement between the second slot 21 and the object to be installed more stable.

[0039] In one embodiment, the outer edge of the first head 1 is arc-shaped. For example... Figure 1 As shown, not only is the outer edge of the first head 1 arc-shaped, but the outer edge of the second head 2 is also arc-shaped. Because the arc-shaped outer contour allows the first head 1 to more easily enter and operate in narrow or confined spaces, the round head can more flexibly adjust its angle to adapt to different work needs in confined working environments. At the same time, compared to other shapes (such as square or polygonal), the round head can distribute pressure more evenly when in contact with bolts or nuts, thereby reducing wear on the bolts or nuts and also reducing the risk of damage to the wrench itself due to uneven force.

[0040] In one embodiment, the strength of the first head 1 is less than the strength of the lever arm body 3. In another embodiment, the first head 1 is welded to the end of the lever arm body 3.

[0041] Because the force arm body 3 is the main body of force transmission, in the process of general use, the end of the force arm body 3 far from the force point needs to be held, so as to increase the length of the force arm. Then the force needs to be transmitted from one end of the force arm body 3 to the other end, so the overall strength of the force arm body 3 needs to be high. The first head 1 is far from the holding position, and even if damaged, it is not easy to cause harm to the user. At the same time, the first head 1 is welded at the end of the force arm body 3. Then after the first head 1 is damaged, the first head 1 can be cut and welded again. The whole process is simple and convenient, and the welding can also provide high connection strength.

[0042] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A profiled spanner, characterised in that, The first head (1) is arranged at one end of the force arm body (3), and the first head (1) is provided with a first clamping groove (11), and the opening direction of the first clamping groove (11) deviates from the force arm direction of the force arm body (3).

2. The profiled spanner according to claim 1, characterised in that The opening direction of the first clamping groove (11) is perpendicular to the force arm direction of the force arm body (3).

3. The profiled spanner according to claim 1, wherein The special-shaped wrench further comprises a second head (2), and the second head (2) is arranged at one end of the force arm body (3) away from the first head (1).

4. The profiled spanner according to claim 3, wherein The second head (2) is further provided with a second clamping groove (21), and the opening direction of the second clamping groove (21) deviates from the opening direction of the first clamping groove (11).

5. The profiled spanner according to claim 4, wherein The second clamping groove (21) is opened along the force arm direction of the force arm body (3).

6. The profiled spanner according to claim 1, wherein The bottom surface of the first clamping groove (11) is a plane.

7. The profiled spanner according to claim 4, wherein The bottom surface of the second clamping groove (21) is an arc surface.

8. The profiled spanner according to claim 1, wherein The outer edge of the first head (1) is a circular arc.

9. The profiled spanner according to claim 1, wherein The strength of the first head (1) is less than the strength of the force arm body (3).

10. The profiled spanner according to claim 9, characterised in that, The first head (1) is welded at the end of the force arm body (3).

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