Wrench suitable for narrow space

Abstract

The wrench suitable for the narrow space comprises a handle part and a movable part, the handle part is provided with a through hole, the middle of the through hole is provided with a transverse opening and an adjusting wheel, the adjusting wheel is provided with an inner threaded hole, and the front end of the handle part is further provided with a fixed clamping arm; the movable part comprises a rod part, a movable clamping arm is arranged at the front end of the rod part, a jaw is formed between the movable clamping arm and the fixed clamping arm, a guide section and a threaded section are arranged on the rod part, and the rod part is inserted into the through hole of the handle part and connected with the adjusting wheel in a threaded fit mode. Compared with the prior art, the adjustable wrench has the advantages that the adjustable wrench is different from a worm and gear principle of a common wrench, the screw rod and the adjusting wheel are matched to achieve stretching and retracting of the movable part, and when the adjusting wheel is rotated, the movable part can stretch and retract relative to the handle part, so that the width of a jaw is adjusted. The wrench is small in size, the included angle between the jaw direction of the head and the handle is 90 degrees, and the overall length of the wrench can be shortened to a large extent.

Description

Technical Field

[0001] The utility model relates to a tool, in particular to a wrench applicable to a narrow space. Background Art

[0002] In daily life or industrial production, for some nuts blocked or obstructed by other objects, ordinary wrenches cannot reach the appropriate position directly, or there is not enough space for rotation to tighten or loosen the nuts. Therefore, developing a wrench applicable to a narrow space has become an urgent problem for those skilled in the art. Summary of the Utility Model

[0003] The utility model is to solve the above deficiencies and provides a wrench applicable to a narrow space.

[0004] The above object of the utility model is achieved by the following technical solutions: A wrench applicable to a narrow space includes a handle part and a movable part.

[0005] The handle part is provided with a through hole. A transverse opening is arranged in the middle of the through hole, and an adjusting wheel is installed. The adjusting wheel is provided with an internal threaded hole. A fixed clamping arm is further arranged at the front end of the handle part.

[0006] The movable part includes a rod part. A movable clamping arm is arranged at the front end of the rod part. A clamping jaw is formed between the movable clamping arm and the fixed clamping arm. A guiding section and a threaded section are arranged on the rod part. The rod part is inserted into the through hole of the handle part and is in threaded fit connection with the adjusting wheel.

[0007] Further, the tail end of the through hole is set as a screw mounting hole position. The tail end of the rod part is provided with a threaded hole and is connected with a limit screw. The head of the limit screw is limited in the screw mounting hole position to prevent the movable part from falling off.

[0008] Further, the handle part is provided with a portable hanging hole.

[0009] Further, the outer surface of the adjusting wheel is provided with knurled concave and convex lines.

[0010] Further, the length of the handle part is 37 mm.

[0011] Further, the width of the movable clamping arm is 5 mm.

[0012] Further, when the clamping jaw of the wrench is the smallest, the total length of the wrench is 42 mm. When the clamping jaw of the wrench is the largest, the total length of the wrench is 54 mm.

[0013] Further, the thickness of the wrench is 8 mm.

[0014] The advantages of the present utility model compared with the prior art are as follows: Different from the worm and worm gear principle of ordinary wrenches, the present utility model adopts the cooperation of a lead screw and an adjusting wheel to realize the telescoping of the movable part. When the adjusting wheel is rotated, the movable part can telescopically move relative to the handle part, thereby adjusting the width of the jaws. The present utility model is small in size, and the direction of the jaws at the head forms a 90-degree angle with the handle, which can greatly shorten the overall length of the wrench. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an exploded structural schematic diagram of one side of the present utility model.

[0016] Figure 2 is an exploded structural schematic diagram of the other side of the present utility model.

[0017] Figure 3 is an internal structural schematic diagram of the present utility model.

[0018] Figure 4 is an internal structural schematic diagram of the handle part of the present utility model.

[0019] Figure 5 is an external structural schematic diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] As Figures 1 to 5 shown, a wrench suitable for narrow spaces includes a handle part 1 and a movable part 2. The handle part 1 is provided with a through hole 3. In the middle of the through hole 3, there is a transverse opening 4, and an adjusting wheel 5 is installed. The adjusting wheel 5 is provided with an internal threaded hole 6. The outer surface of the adjusting wheel 5 is provided with knurled concave and convex patterns (not shown in the figure). The front end of the handle part 1 is further provided with a fixed clamping arm 7; the movable part 2 includes a rod part 201. The front end of the rod part 201 is provided with a movable clamping arm 202, and a jaw 8 is formed between the movable clamping arm 202 and the fixed clamping arm 7. The rod part 201 is provided with a guiding section 201-1 and a threaded section 201-2. The rod part 201 is inserted into the through hole 3 of the handle part 1 and is in threaded fit connection with the adjusting wheel 5.

[0022] In order to prevent the movable part 2 from detaching from the handle part 1 due to excessive rotation of the adjusting wheel 5, the tail end of the through hole 3 is set as a screw mounting hole position 301. The tail end of the rod part 201 is provided with a threaded hole 203, and a limit screw 9 is connected. The head of the limit screw 9 is limited in the screw mounting hole position 301.

[0023] The overall thickness of the wrench of the present utility model is 8 mm, the length of the handle portion 1 is 37 mm, and the width of the movable clamping arm 202 is 5 mm. When the jaws 8 of the wrench are at their minimum, the total length of the wrench is 42 mm, and when the jaws 8 of the wrench are at their maximum, the total length of the wrench is 54 mm. At the same time, in order to facilitate carrying when going out, the handle portion 1 is provided with a portable hanging hole 10.

[0024] During operation, when the adjusting wheel 5 is rotated, the movable member 2 can telescopically move relative to the handle portion 1, thereby adjusting the width of the jaws 8. When going out, it can also be hung together with keys or other items through the portable hanging hole for convenient carrying.

[0025] The above are only embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall equally be included in the patent protection scope of the present utility model.

Claims

1. A wrench suitable for use in a narrow space, comprising a handle and a movable part, characterized in that: The handle portion is provided with a through hole, a transverse opening is provided in the middle of the through hole, and an adjusting wheel is installed, the adjusting wheel is provided with an internal threaded hole, and a fixed clamp arm is also provided at the front end of the handle portion; The movable part includes a rod, a movable clamping arm is provided at the front end of the rod, a jaw is formed between the movable clamping arm and the fixed clamping arm, a guide section and a threaded section are provided on the rod, the rod is inserted into the through hole of the handle part, and is threadedly connected with the adjusting wheel.

2. A wrench suitable for use in a narrow space according to claim 1, characterized in that: The tail end of the through hole is set as a screw installation hole, and the tail end of the rod is provided with a threaded hole and connected with a limit screw, and the nail head of the limit screw is limited in the screw installation hole.

3. A wrench suitable for a narrow space according to claim 1, characterized in that: The handle is provided with a portable hanging hole.

4. A wrench suitable for use in a narrow space according to claim 1, characterized in that: The outer surface of the regulating wheel is provided with knurled concave-convex patterns.

5. A wrench suitable for use in a narrow space according to claim 1, characterized in that: The length of the handle is 37 mm.

6. A wrench suitable for use in a narrow space according to claim 1, characterized in that: The width of the movable clamping arm is 5 mm.

7. A wrench suitable for use in a narrow space according to claim 1, characterized in that: When the jaws of the wrench are at their smallest, the total length of the wrench is 42 mm, and when the jaws of the wrench are at their largest, the total length of the wrench is 54 mm.

8. The wrench suitable for use in a narrow space according to claim 1, characterized in that: The thickness of the wrench is 8 mm.

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