Wrench with rotation angle measuring function

Abstract

The utility model belongs to the technical field of wrenches, and particularly relates to a wrench with a rotation angle measuring function. According to the technical scheme, the wrench with the rotation angle measuring function comprises a wrench body, a fixing disc is connected to the wrench body in a fastened mode, an angle rotating disc is rotationally connected to the fixing disc, a compass is further rotationally connected to the fixing disc, and a fastening indicating area and a loosening indicating area are arranged on the angle rotating disc. And the angle rotating disc is locked with the fixed disc through a fixed bolt. The utility model provides a wrench with a rotation angle measuring function.

Description

Technical Field

[0001] This utility model belongs to the field of wrench technology, and specifically relates to a wrench with a rotation angle measurement function. Background Technology

[0002] Currently, in the power and machinery industries, there is a frequent occurrence of incorrect valve or bolt rotation direction operation at construction sites, leading to oil and water leaks, and even equipment damage. Especially during equipment commissioning, the construction site needs to accurately record the valve opening and closing angles or bolt rotation angles. However, the lack of angle measuring instruments at the construction site prevents valves or bolts from quickly and accurately returning to their original positions, disrupting the equipment's original balance and stability, resulting in oil and water leaks and other accidents, ultimately causing equipment damage. Utility Model Content

[0003] In order to solve the above-mentioned problems in the existing technology, the purpose of this utility model is to provide a wrench with a rotation angle measurement function.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A wrench with a rotation angle measurement function includes a wrench body, a fixed plate fastened to the wrench body, an angle rotating plate rotatably connected to the fixed plate, a compass rotatably connected to the fixed plate, a tightness indicator area and a looseness indicator area provided on the angle rotating plate, and the angle rotating plate is locked to the fixed plate by a fixing bolt.

[0006] This invention features a compass that always points in the N direction. During tightening or loosening operations, the compass rotates relative to the wrench body, and the angle dial accurately displays the tightening angle of the wrench body. This facilitates quick and precise restoration of bolts or valves to their original positions, preventing damage to the equipment and ensuring safe and stable operation. The tightening and loosening indicator areas clearly show the tightening and loosening directions, preventing workers from rotating in the wrong direction.

[0007] The angle rotating disk of this invention is rotatably connected to the fixed disk and locked by fixing bolts. Before the wrench body is properly engaged with the bolt or valve and before tightening begins, the angle rotating disk is rotated until its 0° mark coincides with the compass. When the wrench body is tightened, causing the fixed disk and the angle rotating disk to rotate, the compass position remains unchanged. Thus, the compass can directly indicate the tightening angle of the wrench body, facilitating accurate control of the tightening angle of the bolt or valve, avoiding conversion processes, and reducing cumulative errors.

[0008] In a preferred embodiment of this invention, the angle rotating disk has a central hole, through which the compass shaft extends. The compass shaft and the angle rotating disk are concentric, allowing the compass to directly indicate the angle scale on the angle rotating disk, ensuring accurate angle readings. The compass extending from the central hole of the angle rotating disk prevents interference between the compass and the rotating disk.

[0009] In a preferred embodiment of this invention, the angle rotating disk and the fixed disk are rotatably connected by bearings. This bearing connection ensures smooth rotation of the angle rotating disk.

[0010] In a preferred embodiment of this invention, a fastening strap is connected to the fixed plate, and the fastening strap is fastened to the wrench body. The fastening strap secures the fixed plate to the wrench body, facilitating assembly and disassembly. The fastening strap may have a locking mechanism, which allows the strap to be securely fastened to the wrench body.

[0011] As a preferred embodiment of this utility model, the fastening strap is provided with an inner rubber lining on the side near the wrench body. The inner rubber lining increases the friction between the wrench body and the fastening strap, preventing the fastening strap from loosening and causing inaccurate angle indication.

[0012] In a preferred embodiment of this invention, both the plane containing the compass and the plane containing the angle rotating disk are parallel to the rotation plane of the wrench body. After the wrench body is turned, the compass can accurately indicate the turning angle on the angle rotating disk, avoiding spatial errors.

[0013] As a preferred embodiment of this utility model, both the fastening indicator area and the loosening indicator area are provided with an angle scale of 0° to 180°.

[0014] In a preferred embodiment of this invention, the angle rotating disk is provided with E, S, W, and N respectively representing the directions of north, south, west, and north, and the 0° scale line on the angle rotating disk coincides with the N representing the north direction. The angle scale can also accurately indicate the direction of rotation.

[0015] In a preferred embodiment of this invention, the tightening indicator area and the loosening indicator area are distinguished by different colors. This invention can set the loosening indicator area to red and the tightening indicator area to green, facilitating directional differentiation, indicating the operating direction to the operator, and preventing incorrect operation.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. The compass of this invention always points in the N direction (north). During tightening or loosening operations, the compass rotates relative to the wrench body, and the angle dial accurately displays the tightening angle of the wrench body. This facilitates quick and precise restoration of bolts or valves to their original positions, preventing damage to the equipment and ensuring safe and stable operation. The tightening and loosening indicator areas clearly show the tightening and loosening directions, preventing workers from rotating in the wrong direction.

[0018] 2. In this invention, the angle rotating disk and the fixed disk are rotatably connected and locked by fixing bolts. Before the wrench body is properly engaged with the bolt or valve and before tightening begins, the angle rotating disk is rotated until its 0° mark coincides with the compass. When tightening the wrench body, which in turn rotates the fixed disk and the angle rotating disk, the compass position remains unchanged. This allows the compass to directly indicate the tightening angle of the wrench body, facilitating accurate control of the tightening angle of the bolt or valve, avoiding conversion processes, and reducing cumulative errors. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] In the diagram: 1-Fixed disc; 2-Angle rotating disc; 3-Compass; 4-Strap fastening; 21-Fastening indicator area; 22-Loosening indicator area; 23-Fixing bolt; 24-Angle scale; 41-Inner rubber lining. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other.

[0023] like Figure 1As shown, the wrench with rotation angle measurement function in this embodiment includes a wrench body, a fixed plate 1 is fastened to the wrench body, an angle rotating plate 2 is rotatably connected to the fixed plate 1, a compass 3 is also rotatably connected to the fixed plate 1, the angle rotating plate 2 is provided with a fastening indicator area 21 and a loosening indicator area 22, and the angle rotating plate 2 is locked to the fixed plate 1 by a fixing bolt 23.

[0024] It should be noted that the main body of the wrench of this utility model can be a regular wrench, an internal hex wrench, etc.

[0025] The compass 3 of this invention always points in the N direction. During tightening or loosening operations, the compass 3 rotates relative to the wrench body, and the angle rotating disk 2 accurately displays the turning angle of the wrench body. This facilitates quick and precise restoration of bolts or valves to their original positions, preventing accidents such as oil or water leaks caused by disrupting the original balance and stability of the equipment, thus avoiding equipment damage and ensuring safe and stable operation. The tightening indicator area 21 and the loosening indicator area 22 clearly indicate the tightening and loosening directions, preventing operators from rotating in the wrong direction.

[0026] The angle rotating disk 2 of this utility model is rotatably connected to the fixed disk 1 and locked by the fixing bolt 23. Before the wrench body is properly engaged with the bolt or valve and before tightening begins, the angle rotating disk 2 is rotated until its 0° scale line coincides with the compass 3. When the wrench body is tightened, causing the fixed disk 1 and the angle rotating disk 2 to rotate, the orientation of the compass 3 remains unchanged. Thus, the compass 3 can directly indicate the tightening angle of the wrench body, facilitating accurate control of the tightening angle of the bolt or valve, avoiding the conversion process, and reducing cumulative errors.

[0027] Both the fastening indicator area 21 and the loosening indicator area 22 of this invention are provided with angle scales 24 ranging from 0° to 180°. The angle rotating disk 2 is provided with E, S, W, and N respectively representing the directions of North, South, West, and North. The 0° scale line on the angle rotating disk 2 coincides with the N indicating the North direction. The angle scale 24 can also accurately indicate the direction of rotation.

[0028] The angle dial 2 can accurately indicate the tightening or loosening angle of the wrench or hex socket. Based on the principle of the compass 3, which always points in the N direction, before tightening or loosening the wrench body, adjust the 0° mark of the angle dial 2 to coincide with the direction of the compass 3; then fix the angle dial 2 with the fixing bolt 23. When the wrench body is tightened or loosened, the compass 3 will rotate relative to the wrench body. The angle of the compass 3 after it stops rotating is the tightening or loosening angle.

[0029] The tightening indicator area 21 and the loosening indicator area 22 are distinguished by different colors. This invention can set the loosening indicator area 22 to red and the tightening indicator area 21 to green, making it easier to distinguish directions, indicating the operating direction to the operator, and avoiding incorrect operation.

[0030] The angle rotating disk 2 has a central hole, through which the axis of the compass 3 extends. The axis of the compass 3 and the angle rotating disk 2 are concentric, allowing the compass 3 to directly indicate the angle scale 24 on the angle rotating disk 2, ensuring accurate angle readings. The compass 3 extending from the central hole of the angle rotating disk 2 prevents interference between the compass 3 and the angle rotating disk 2.

[0031] The angle rotating disk 2 and the fixed disk 1 are rotatably connected by bearings. The connection between the angle rotating disk 2 and the fixed disk 1 by bearings ensures that the angle rotating disk 2 can rotate smoothly.

[0032] For easy fixation, a fastening strap 4 is connected to the fixing plate 1, and the fastening strap 4 is fastened to the wrench body. The fixing plate 1 is fixed to the wrench body by the fastening strap 4, which facilitates assembly and disassembly. The fastening strap 4 may be provided with a snap-fit, which can be used to fasten the fastening strap 4 to the wrench body.

[0033] The fastening strap 4 has an inner rubber lining 41 on the side near the wrench body. The inner rubber lining 41 increases the friction between the wrench body and the fastening strap 4, preventing the fastening strap 4 from becoming loose and causing inaccurate angle indication.

[0034] It should be noted that the plane containing the compass 3 and the plane containing the angle rotating disk 2 are both parallel to the rotation plane of the wrench body. After the wrench body is turned, the compass 3 can accurately indicate the turning angle on the angle rotating disk 2, avoiding spatial errors.

[0035] The method for tightening the wrench at a precise angle according to this embodiment includes the following steps:

[0036] S1: Select a suitable wrench or Allen wrench according to the bolt diameter at the construction site, and fix the fixing plate 1 to the wrench or Allen wrench through the inner rubber and the fastening strap 4.

[0037] S2: Based on the principle of compass 3, with the pointer pointing in the N direction, loosen the fixing bolt 23 and align the 0° scale line of the angle rotating disk 2 with the direction of compass 3. Then tighten the fixing bolt 23 to prevent the angle rotating disk 2 from shaking. This operation sets the dial angle to 0 to avoid affecting the angle reading during operation.

[0038] S3: The angle rotary disk 2 is designed with a loosening indicator area 22 in red and a tightening indicator area 21 in green, which makes it easy to distinguish the direction and remind the operator of the operating direction to avoid incorrect operation.

[0039] Based on the principle of compass 3, the pointer of compass 3 always points in the N direction. When tightening or loosening, after the wrench is tightened or loosened, the angle of the pointer after the compass 3 stops rotating is the tightening or loosening angle, which can accurately read the angle of rotation of the wrench or Allen wrench.

[0040] This utility model successfully provides operators with a clear indication of the direction of tightening or loosening, and accurately reads the rotation angle of wrenches and hexagonal sockets. This facilitates the quick and accurate restoration of bolts or valves to their original positions, preventing disruption of the equipment's original balance and stability, avoiding oil or water leaks and other accidents that could damage the equipment, and ensuring its safe and stable operation.

[0041] This utility model is not limited to the above-mentioned optional embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in its shape or structure, any technical solution that falls within the scope of the claims of this utility model shall be protected by this utility model.

Claims

1. A wrench with a rotation angle measurement function, Features: The invention comprises a wrench body, a fixed disk (1) is fixedly connected to the wrench body, an angle rotating disk (2) is rotatably connected to the fixed disk (1), a compass (3) is also rotatably connected to the fixed disk (1), a tightening indication area (21) and a loosening indication area (22) are arranged on the angle rotating disk (2), and the angle rotating disk (2) is locked with the fixed disk (1) by a fixing bolt (23).

2. A wrench with a rotation angle measurement function according to claim 1, Features: A central hole is provided at the center of the angle rotating disk (2), and the rotating shaft of the compass (3) extends out from the central hole of the angle rotating disk (2).

3. A wrench with a rotation angle measurement function according to claim 1, Features: The angle rotating disk (2) is rotatably connected to the fixed disk (1) via a bearing.

4. A wrench with a rotation angle measurement function according to claim 1, Features: The fixing plate (1) is connected with a fastening strap (4), and the fastening strap (4) is fastened to the wrench body.

5. A wrench with a rotation angle measurement function according to claim 4, Features: A rubber lining (41) is provided on one side of the fastening strap (4) close to the wrench body.

6. A wrench with a rotation angle measurement function according to claim 1, Features: The plane where the compass (3) is located and the plane where the angle rotating disk (2) is located are both parallel to the rotation plane of the wrench body.

7. A wrench with a rotation angle measurement function according to claim 1, Features: The tightening indication area (21) and the loosening indication area (22) are both provided with angle scales (24) ranging from 0° to 180°.

8. A wrench with a rotation angle measurement function according to claim 7, Features: The angle rotating disk (2) is provided with E, S, W, and N indicating the south, west, and north directions respectively, and the 0° scale line on the angle rotating disk (2) coincides with N indicating the north direction.

9. A wrench with a rotation angle measurement function according to claim 1, Features: The fastening indication area (21) and the loosening indication area (22) are distinguished by different colors.

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