Anti-slip torque wrench clamping structure

Abstract

The utility model discloses an anti-slip torque wrench clamping structure, the clamping structure is preassembled on a torque handle through a joint, the clamping structure is provided with a snap ring seat, a lining ring and a clamping ring, the inner side of the snap ring seat is provided with a hole, the inner wall of the hole is provided with a ring groove, the snap ring seat comprises a left snap ring and a right snap ring which are arranged in a mirror image mode, and the left snap ring and the right snap ring are arranged in a clamping mode. A connector is integrally formed on the right clamping ring, connecting holes are formed in the upper end and the lower end of the left clamping ring and the upper end and the lower end of the right clamping ring respectively, and bolts can penetrate through the connecting holes and lock the left clamping ring and the right clamping ring. The clamping ring can be installed on the inner side of the clamping ring seat, the clamping ring is provided with a main ring body, anti-skidding clamping teeth distributed along the inner wall of the main ring body and installation lips integrally formed on the upper side and the lower side of the main ring body, and the main ring body can be matched with the open hole of the clamping ring seat. According to the torque wrench, screws of different sizes can be twisted through the combination effect of the clamping ring base, the lining ring and the clamping ring, namely, the clamping ring with different internal space sizes can be replaced according to the screws of different sizes, and the adaptability of the torque wrench is higher.

Description

Technical Field

[0001] The utility model relates to the field of torque wrenches, in particular to a torque wrench clamping structure for preventing slipping. Background Art

[0002] A torque wrench, also called a torque wrench, torque wrench or torque spanner, is a type of wrench. It is generally divided into two categories: electric torque wrench and manual torque wrench. Torque is the product of force and distance. When tightening threaded fasteners such as screws, bolts, and nuts, it is necessary to control the applied torque to ensure that the threads are tightened and not damaged due to excessive torque. Therefore, a torque wrench is used for operation. The clamping structure generally refers to the wrench head.

[0003] However, the torque wrench head in the prior art cannot adapt to screws of different sizes, and the single-tooth structure used is prone to slipping. Based on this, the utility model proposes a torque wrench clamping structure that prevents slipping. This structure is applied to the torque wrench. It can meet the requirements of twisting screws of different sizes through the combined effect of the three components: the snap ring seat, the inner liner, and the clamping ring. That is, according to the different sizes of screws, the clamping rings with different internal space sizes can be replaced, making the torque wrench more adaptable. The clamping ring adopts three-stage teeth, which has a good clamping effect and can avoid slipping caused by a single tooth, making the torque wrench more adaptable. Utility Model Content

[0004] The purpose of the present utility model is to provide a torque wrench clamping structure that prevents slipping, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a torque wrench clamping structure that prevents slipping, the clamping structure is pre-installed on the torque handle through a joint, the clamping structure has a clamping ring seat, an inner lining ring and a clamping ring, an opening is provided on the inner side of the clamping ring seat, and an annular groove is provided on the inner wall of the opening, the clamping ring seat includes a left clamping ring and a right clamping ring arranged in a mirror image, wherein the right clamping ring is integrally formed with a joint, and the upper and lower ends of the left and right clamping rings are provided with connecting holes, and bolts can pass through the connecting holes to lock the left and right clamping rings; the clamping ring can be installed on the inner side of the clamping ring seat, the clamping ring has a main ring body, anti-slip teeth distributed along the inner wall of the main ring body, and mounting lips integrally formed on the upper and lower sides of the main ring body, wherein the main ring body can cooperate with the opening of the clamping ring seat.

[0006] Preferably, the mounting lip includes an upper lip body and a lower lip body, wherein the outer diameters of the upper lip body and the lower lip body are larger than the inner diameter of the opening of the snap ring seat, and the upper lip body and the lower lip body can be pressed onto the outer edge of the snap ring seat opening when the main ring body is installed on the inner side of the snap ring seat opening.

[0007] Preferably, the inner lining ring is arranged on the outside of the clamping ring, and a circle of friction plates is provided on the inside of the inner lining ring, which can contact the middle of the outer wall of the main ring body (the specific position of the friction plate on the main ring body is the area between the upper lip body and the lower lip body).

[0008] Preferably, the outer side of the inner liner can cooperate with the ring groove on the inner side of the snap ring seat, and the inner liner is formed by two semicircular washers connected by screws.

[0009] Preferably, the anti-slip teeth are three-section teeth, and the upper and lower sides thereof are conical racks, and the middle is a concave rack.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The utility model can meet the needs of twisting screws of different sizes through the combined effect of the clamping ring seat, the inner lining ring and the clamping ring. That is, according to the different sizes of screws, the clamping rings with different sizes of internal spaces can be replaced, making the torque wrench more adaptable. The clamping ring adopts three-section teeth, which has a good clamping effect and can avoid slipping caused by a single tooth, making the torque wrench more adaptable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a structural diagram of a snap ring seat in an embodiment of the present utility model;

[0014] Figure 3 It is a schematic structural diagram of the clamping ring in an embodiment of the present utility model.

[0015] In the figure: 1. Snap ring seat; 101. Left snap ring; 102. Right snap ring; 103. Connector; 104. Bolt; 105. Ring groove; 2. Clamping ring; 201. Main ring body; 202. Anti-slip teeth; 203. Upper lip body; 204. Lower lip body; 3. Inner liner; 301. Friction plate; 302. Semicircular washer. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0018] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0019] See also Figure 1-3 The utility model provides a technical solution: a torque wrench clamping structure that prevents slipping, the clamping structure is pre-installed on the torque handle through a joint 103, the clamping structure comprises a clamping ring seat 1, an inner lining ring 3 and a clamping ring 2, the inner side of the clamping ring seat 1 is provided with an opening, and the inner wall of the opening is provided with a ring groove 105, the clamping ring seat 1 comprises a left clamping ring 101 and a right clamping ring 102 arranged in a mirror image, wherein the right clamping ring 102 is integrally formed with a joint 103, and the upper and lower ends of the left clamping ring 101 and the right clamping ring 102 are provided with connecting holes, and bolts 104 can pass through the connecting holes and lock the left clamping ring 101 and the right clamping ring 102; the clamping ring 2 can be installed on the inner side of the clamping ring seat 1, the clamping ring 2 has a main ring body 201, anti-slip teeth 202 distributed along the inner wall of the main ring body 201, and mounting lips integrally formed on the upper and lower sides of the main ring body 201, wherein the main ring body 201 can cooperate with the opening of the clamping ring seat 1.

[0020] In this embodiment, the mounting lip includes an upper lip body 203 and a lower lip body 204, wherein the outer diameters of the upper lip body 203 and the lower lip body 204 are larger than the inner diameter of the opening of the retaining ring seat 1, and the upper lip body 203 and the lower lip body 204 can be pressed on the outer edge of the opening of the retaining ring seat 1 when the main ring body 201 is installed on the inner side of the opening of the retaining ring seat 1.

[0021] In this embodiment, the inner lining ring 3 is arranged on the outside of the clamping ring 2, and a circle of friction plate 301 is provided on the inside of the inner lining ring 3. The friction plate 301 can contact the middle of the outer wall of the main ring body 201 (the specific position of the friction plate 301 on the main ring body 201 is the area between the upper lip body 203 and the lower lip body 204).

[0022] In this embodiment, the outer side of the inner liner 3 can cooperate with the annular groove 105 on the inner side of the snap ring seat 1, and the inner liner 3 is formed by two semicircular washers 302 connected by screws.

[0023] In this embodiment, the anti-slip teeth 202 are three-section teeth, and the upper and lower sides thereof are tapered racks, and the middle part is a concave rack.

[0024] The above-mentioned clamping structure can meet the needs of twisting screws of different sizes through the combined effect of the three components of the clamping ring seat 1, the inner lining ring 3 and the clamping ring 2, that is, according to the different sizes of screws, the clamping rings 2 with different internal space sizes can be replaced, making the torque wrench more adaptable. The clamping ring 2 adopts three-stage teeth, which has a good clamping effect and can avoid slipping caused by a single tooth, making the torque wrench more adaptable.

[0025] When replacing the clamping ring 2, first loosen the bolts 104 that fix the left clamping ring 101 and the right clamping ring 102 to separate the left clamping ring 101 and the right clamping ring 102, then separate the inner liner 3 and take it out, and then take out the clamping ring 2; when replacing, first put the two semicircular washers 302 (inner liner 3) on the outside of the main ring body 201 of the clamping ring 2, and the friction plate 301 on the inner side of the semicircular washer 302 is pressed against the middle of the outer wall of the main ring body 201, then connect the two semicircular washers 302 with screws, and then place the inner liner 3 in the annular groove 105 on the inner side of the right clamping ring 102, and finally tighten the bolts 104 and nuts on the left clamping ring 101 and the right clamping ring 102.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A torque wrench clamping structure for preventing slippage, characterized in that: The clamping structure is pre-installed on the torque handle through a joint (103), and the clamping structure comprises a clamping ring seat (1), an inner lining ring (3) and a clamping ring (2). An opening is provided on the inner side of the clamping ring seat (1), and an annular groove (105) is provided on the inner wall of the opening. The clamping ring seat (1) comprises a left clamping ring (101) and a right clamping ring (102) arranged in a mirror image, wherein the right clamping ring (102) is integrally formed with a joint (103), and the upper surfaces of the left clamping ring (101) and the right clamping ring (102) are and the lower ends thereof are provided with connecting holes, through which bolts (104) can pass to lock the left snap ring (101) and the right snap ring (102); the clamping ring (2) can be installed on the inner side of the snap ring seat (1), and the clamping ring (2) has a main ring body (201), anti-slip teeth (202) distributed along the inner wall of the main ring body (201), and mounting lips integrally formed on the upper and lower sides of the main ring body (201), wherein the main ring body (201) can cooperate with the opening of the snap ring seat (1).

2. The anti-slip torque wrench clamping structure according to claim 1, characterized in that: The mounting lip comprises an upper lip body (203) and a lower lip body (204), wherein the outer diameters of the upper lip body (203) and the lower lip body (204) are larger than the inner diameter of the opening of the snap ring seat (1), and the upper lip body (203) and the lower lip body (204) can be pressed onto the outer edge of the opening of the snap ring seat (1) when the main ring body (201) is mounted on the inner side of the opening of the snap ring seat (1).

3. The anti-slip torque wrench clamping structure according to claim 1, characterized in that: The inner lining ring (3) is arranged on the outside of the clamping ring (2), and a circle of friction plates (301) is arranged on the inside of the inner lining ring (3). The friction plates (301) can contact the middle of the outer wall of the main ring body (201).

4. The anti-slip torque wrench clamping structure according to claim 3, characterized in that: The outer side of the inner lining ring (3) can cooperate with the annular groove (105) on the inner side of the snap ring seat (1), and the inner lining ring (3) is formed by two semicircular washers (302) connected by screws.

5. The anti-slip torque wrench clamping structure according to claim 2, characterized in that: The anti-slip teeth (202) are three-section teeth, and the upper and lower sides thereof are conical racks, and the middle is a concave rack.

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