Anti-skid wrench

Abstract

The utility model discloses an anti-skid wrench and aims to overcome the defect that in the prior art, when corners of a screw are abraded, the screw cannot be firmly locked by the wrench, so that the screw is difficult to rotate by the wrench. The technical problem is solved through the following technical scheme that the wrench comprises a wrench head, a rotating hole is formed in the wrench head, the rotating hole is polygonal, and the wrench is characterized in that at least one surface of the inner side wall of the rotating hole is provided with a tooth surface structure; the tooth surface structure comprises a plurality of long grooves formed in the axial direction of the rotating hole, and convex teeth are formed between the adjacent long grooves. According to the wrench, the tooth surface structure is arranged on the inner side wall of the rotating hole, so that the convex teeth are formed on the inner side wall of the rotating hole, the friction force between the inner side wall of the rotating hole and the outer side wall of the screw is increased, the screw can be locked when the wrench rotates the screw, and the screw can be rotated more easily.

Description

Technical Field

[0001] The utility model relates to the technical field of wrenches, and more specifically, to an anti-slip wrench. Background Art

[0002] When the polygonal inner hole of the wrench is used to turn the screw, the corners of the screw may be worn (for example, the corners of the screw may be rounded) due to corrosion or rust of the screw. As a result, the screw cannot be securely locked by the wrench when the wrench is turning the screw, making it difficult for the wrench to turn the screw.

[0003] The anti-slip wrenches in the prior art mainly set anti-slip structures for the handles, but lack the design of anti-slip structures for the wrench to turn the screws. For example: Chinese patent announcement number CN213946272U, announcement date November 7, 2020, the application name is a universal ratchet wrench, the application discloses a wrench, which mainly achieves the purpose of anti-slip handle by setting anti-slip grooves on the outside of the handle, but does not design an anti-slip structure between the screw and the wrench when the wrench turns the screw. Utility Model Content

[0004] The utility model overcomes the shortcomings of the prior art that when the corners of the screws are worn, the screws cannot be firmly locked by the wrench, making it difficult for the wrench to turn the screws, and provides an anti-slip wrench, which can well lock the screws when turning the screws even if the corners of the screws are worn, so that the wrench can easily turn the screws with worn corners.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: an anti-slip wrench, including a wrench head, a rotating hole is arranged on the wrench head, the rotating hole is polygonal, and at least one surface of the inner wall of the rotating hole is provided with a tooth surface structure; the tooth surface structure includes a plurality of long grooves arranged along the axial direction of the rotating hole, and convex teeth are formed between adjacent long grooves.

[0006] By arranging a tooth surface structure on the inner wall of the rotating hole, a convex tooth is formed on the inner wall of the rotating hole, thereby increasing the friction between the inner wall of the rotating hole and the outer wall of the screw, so that the wrench can lock the screw when turning the screw, thereby making it easier to turn the screw.

[0007] Preferably, the rotation hole is a hexagon. The rotation hole can be set into different polygonal styles according to the actual situation of the screw. The rotation hole of the utility model adopts a common hexagonal rotation hole.

[0008] Preferably, the top end of the protruding tooth is flush with the inner side wall where it is located.

[0009] Preferably, the top end of the protruding tooth exceeds the end surface of the inner wall where it is located.

[0010] The convex teeth protrude toward the end surface of the inner wall, so that the friction between the inner wall and the outer wall of the screw can be increased, making it easier to turn the screw.

[0011] Preferably, the convex tooth is arranged obliquely, and the two side edges of the convex tooth are respectively the first edge and the second edge; the angle between the first edge and the inner side wall is A1, and the angle between the second edge and the inner side is A2, and A1 and A2 are not equal.

[0012] The protruding teeth are inclined to one side, making them more suitable for preventing the screw from sliding.

[0013] Preferably, the angles A1 and A2 are between 30° and 80°, which makes the overall structure more reasonable.

[0014] Preferably, A1-A2 is greater than 5°. With the above structure, the first side and the second side can maintain an inclination.

[0015] Preferably, the tooth surface structures are arranged in pairs in the rotating hole, and each pair of tooth surface structures is respectively arranged on opposite surfaces of the inner side wall of the rotating hole.

[0016] Therefore, no matter whether the wrench is turned clockwise or counterclockwise, there are always inclined convex teeth that cooperate with the screw, making it more convenient to turn the screw.

[0017] Preferably, the tooth surface structures are arranged in at least two pairs, and the inclination direction of the convex teeth of at least one pair of tooth surface structures is opposite to the inclination direction of the other convex teeth.

[0018] Therefore, no matter whether the spanner is rotated clockwise or counterclockwise, the inclined convex teeth 4 always cooperate with the screw, making it more convenient to rotate the screw.

[0019] Preferably, avoidance angle grooves are provided between adjacent inner side walls.

[0020] When the screw is turned by a wrench, the corners of the screw are located in the avoidance angle grooves, and the avoidance angle grooves are separated from the corners of the screw, thereby preventing the corners of the screw from being worn when the screw is turned.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] In the utility model, a tooth surface structure is provided on the inner wall of the rotating hole, so that convex teeth are formed on the inner wall of the rotating hole, thereby increasing the friction between the inner wall of the rotating hole and the outer wall of the screw, so that the screw can be locked when the wrench turns the screw, thereby making it easier to turn the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a structural schematic diagram of the ratchet wrench of the utility model;

[0024] Figure 2 It is a schematic diagram of a tooth surface structure provided on an inner side wall of a rotating hole in Embodiment 1 of the present utility model;

[0025] Figure 3 It is a schematic diagram of a tooth surface structure provided on the facing surface of the rotating hole in Embodiment 1 of the present utility model;

[0026] Figure 4 It is a schematic diagram of tooth surface structures arranged on all surfaces of the rotating hole in Embodiment 1 of the present utility model;

[0027] Figure 5 yes Figure 4 A local enlarged view of area a in FIG.

[0028] Figure 6 It is a schematic diagram of the protruding reference line of the protruding tooth end in Example 2 of the utility model;

[0029] Figure 7 is a schematic diagram of the tooth surface structure in Example 3 of the present utility model;

[0030] Figure 8 yes Figure 7 A local enlarged view of the area in middle b;

[0031] Fig. 9 yes Figure 8 A local enlarged view of the middle c area;

[0032] Fig.10 It is a schematic diagram of a tooth surface structure provided on a side wall surface of a rotating hole in Embodiment 3 of the present utility model;

[0033] Fig.11 It is a schematic diagram of a tooth surface structure provided on the facing surface of the rotating hole in Embodiment 3 of the present utility model;

[0034] Fig.12 It is a schematic diagram of a tooth surface structure provided on all surfaces of the rotating hole in Embodiment 3 of the present utility model;

[0035] Fig.13 It is a schematic diagram of the convex tooth end and the reference line in the fourth embodiment of the present utility model;

[0036] Fig.14 yes Fig.13 A local enlarged view of the d area in FIG.

[0037] Fig.15 It is a schematic diagram of Example 5 of the present utility model;

[0038] Fig.16It is a schematic diagram of Example 6 of the present utility model;

[0039] In the figure: 1. Wrench head;

[0040] 2. a rotating hole, 21. a first side wall surface, 22. a second side wall surface, 23. a third side wall surface, 24. a fourth side wall surface, 25. a fifth side wall surface, 26. a sixth side wall surface;

[0041] 3. Long groove;

[0042] 4, convex teeth, 41, first side, 42, second side;

[0043] 5. Avoid corner slots;

[0044] 6. Baseline;

[0045] 7. Screws. DETAILED DESCRIPTION

[0046] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0047] Example 1: Referring to Figures 1 to 5 As shown, an anti-slip wrench includes a wrench head 1. This embodiment takes a ratchet wrench as an example. Figure 1 As shown, the wrench head 1 is connected to a wrench handle, and a rotating hole 2 is provided on the wrench head 1. The rotating hole 2 is used to cooperate with the screw 7. The rotating hole 2 is a polygon, and at least one surface of the inner wall of the rotating hole 2 is provided with a tooth surface structure.

[0048] The rotating hole 2 can be set into different polygonal styles according to the actual situation of the screw 7. The rotating hole 2 in this embodiment adopts a common hexagonal rotating hole 2. Six inner wall surfaces are set in the hexagonal rotating hole 2, such as Figure 2 As shown, along the clockwise direction, the six inner side wall surfaces are respectively a first side wall surface 21, a second side wall surface 22, a third side wall surface 23, a fourth side wall surface 24, a fifth side wall surface 25 and a sixth side wall surface 26.

[0049] In addition, an avoidance angle groove 5 is provided between adjacent inner side walls. When the screw 7 is rotated by a wrench, the corners of the screw 7 are located in the avoidance angle groove 5. The avoidance angle groove 5 and the corners of the screw 7 are separated, so that when the screw 7 is rotated, the corners of the screw 7 are prevented from being worn.

[0050] The tooth surface structure can be provided on only one inner side wall, such as Figure 2 As shown, the tooth surface structure is only provided on the first side wall surface 21. Alternatively, the tooth surface structure can be provided on the opposite inner side wall, such as Figure 3As shown, the tooth surface structure is only provided on the first side wall surface 21 and the fourth side wall surface 24. In this embodiment, the tooth surface structure is provided on all the inner side walls of the rotating hole 2, that is, Figure 4 As shown, tooth surface structures are provided on the first side wall surface 21 , the second side wall surface 22 , the third side wall surface 23 , the fourth side wall surface 24 , the fifth side wall surface 25 and the sixth side wall surface 26 .

[0051] The tooth surface structure includes a plurality of long grooves 3 arranged along the axial direction of the rotating hole 2, and convex teeth 4 are formed between adjacent long grooves 3, and the number of long grooves 3 is two or more. In this embodiment, the number of long grooves 3 is set to two, and the convex teeth 4 are formed between the two long grooves 3. The long grooves 3 in this embodiment are V-shaped long grooves 3, and the side walls of adjacent V-shaped long grooves 3 cooperate to form triangular convex teeth 4 protruding outward.

[0052] The sides of the triangular protruding teeth 4 in this embodiment have the same length, and the top of the triangular protruding teeth 4 is flush with the inner side wall. Figure 5 As shown, taking the tooth surface structure on the first side wall surface 21 as an example, the first side wall surface 21 is the reference line 6, and the top of the triangular convex tooth 4 is flush with the reference line 6, that is, the top of the triangular convex tooth 4 is flush with the inner side wall.

[0053] In this embodiment, a tooth surface structure is provided on the inner wall of the rotating hole 2 so that a convex tooth 4 is formed on the inner wall of the rotating hole 2, thereby increasing the friction between the inner wall of the rotating hole 2 and the outer wall of the screw 7, so that the wrench can lock the screw 7 when turning the screw 7, thereby making it easier to turn the screw 7.

[0054] Example 2: Referring to Figures 1 to 6 As shown, an anti-slip wrench includes a wrench head 1. In this embodiment, a ratchet wrench is taken as an example. The wrench head 1 is connected to a wrench handle. A rotating hole 2 is provided on the wrench head 1. The rotating hole 2 is used to cooperate with a screw 7. The rotating hole 2 is a polygon, and at least one surface of the inner wall of the rotating hole 2 is provided with a tooth surface structure.

[0055] The rotating hole 2 can be set into different polygonal styles according to the actual situation of the screw 7. The rotating hole 2 in this embodiment adopts a common hexagonal rotating hole 2. Six inner wall surfaces are set in the hexagonal rotating hole 2, such as Figure 2 As described above, the six inner side wall surfaces are respectively a first side wall surface 21 , a second side wall surface 22 , a third side wall surface 23 , a fourth side wall surface 24 , a fifth side wall surface 25 and a sixth side wall surface 26 along the clockwise direction.

[0056] In addition, an avoidance angle groove 5 is provided between adjacent inner side walls. When the screw 7 is rotated by a wrench, the corners of the screw 7 are located in the avoidance angle groove 5. The avoidance angle groove 5 and the corners of the screw 7 are separated, so that when the screw 7 is rotated, the corners of the screw 7 are prevented from being worn.

[0057] The tooth surface structure can be provided on only one inner side wall, such as Figure 2 As shown, the tooth surface structure is only provided on the first side wall surface 21. Alternatively, the tooth surface structure can be provided on the opposite inner side wall, such as Figure 3 As shown, the tooth surface structure is only provided on the first side wall surface 21 and the fourth side wall surface 24. In this embodiment, the tooth surface structure is provided on all the inner side walls of the rotating hole 2, that is, Figure 4 As shown, tooth surface structures are provided on the first side wall surface 21 , the second side wall surface 22 , the third side wall surface 23 , the fourth side wall surface 24 , the fifth side wall surface 25 and the sixth side wall surface 26 .

[0058] The tooth surface structure includes a plurality of long grooves 3 arranged along the axial direction of the rotating hole 2, and convex teeth 4 are formed between adjacent long grooves 3, and the number of long grooves 3 is two or more. In this embodiment, the number of long grooves 3 is set to two, and the convex teeth 4 are formed between the two long grooves 3. The long grooves 3 in this embodiment are V-shaped long grooves 3, and the side walls of adjacent V-shaped long grooves 3 cooperate to form triangular convex teeth 4 protruding outward.

[0059] The sides of the triangular protruding teeth 4 in this embodiment have the same length, and the top of the triangular protruding teeth 4 exceeds the end surface of the inner wall where it is located (it should be noted that even if the top of the triangular protruding teeth 4 exceeds the end surface of the inner wall where it is located, the inner diameter of the rotating hole is still larger than the outer diameter of the screw to ensure the normal use of the wrench). Figure 6 As shown, taking the tooth surface structure on the first side wall surface 21 as an example, the first side wall surface 21 is the reference line 6, the distance between the top of the triangular convex tooth 4 and the first side wall surface 21 is D1, and the size of D1 is 0 to 3 mm, that is, the top of the triangular convex tooth 4 is flush with the inner side wall. The convex tooth 4 in this embodiment protrudes toward the end surface of the inner side wall, so that the friction between the outer side wall of the screw 7 can be increased, so that the screw 7 can be turned more easily.

[0060] In this embodiment, a tooth surface structure is provided on the inner wall of the rotating hole 2 so that a convex tooth 4 is formed on the inner wall of the rotating hole 2, thereby increasing the friction between the inner wall of the rotating hole 2 and the outer wall of the screw 7, so that the wrench can lock the screw 7 when turning the screw 7, thereby making it easier to turn the screw 7.

[0061] Example 3: Referring to Figures 7 to 12As shown, an anti-slip wrench includes a wrench head 1. In this embodiment, a ratchet wrench is taken as an example. The wrench head 1 is connected to a wrench handle. A rotating hole 2 is provided on the wrench head 1. The rotating hole 2 is used to cooperate with a screw 7. The rotating hole 2 is a polygon, and at least one surface of the inner wall of the rotating hole 2 is provided with a tooth surface structure.

[0062] The rotating hole 2 can be set into different polygonal styles according to the actual situation of the screw 7. The rotating hole 2 in this embodiment adopts a common hexagonal rotating hole 2. Six inner wall surfaces are set in the hexagonal rotating hole 2, such as Figure 7 As described above, the six inner side wall surfaces are respectively a first side wall surface 21 , a second side wall surface 22 , a third side wall surface 23 , a fourth side wall surface 24 , a fifth side wall surface 25 and a sixth side wall surface 26 along the clockwise direction.

[0063] In addition, an avoidance angle groove 5 is provided between adjacent inner side walls. When the screw 7 is rotated by a wrench, the corners of the screw 7 are located in the avoidance angle groove 5. The avoidance angle groove 5 and the corners of the screw 7 are separated, so that when the screw 7 is rotated, the corners of the screw 7 are prevented from being worn.

[0064] The tooth surface structure can be provided on only one inner side wall, such as Fig.10 As shown, the tooth surface structure is only provided on the first side wall surface 21. Alternatively, the tooth surface structure can be provided on the opposite inner side wall, such as Fig.11 As shown, the tooth surface structure is only provided on the first side wall surface 21 and the fourth side wall surface 24. In this embodiment, the tooth surface structure is provided on all the inner side walls of the rotating hole 2, that is, Fig.12 As shown, tooth surface structures are provided on the first side wall surface 21 , the second side wall surface 22 , the third side wall surface 23 , the fourth side wall surface 24 , the fifth side wall surface 25 and the sixth side wall surface 26 .

[0065] The tooth surface structure includes a plurality of long grooves 3 arranged along the axial direction of the rotating hole 2, and convex teeth 4 are formed between adjacent long grooves 3. The number of long grooves 3 is more than two, and the number of long grooves 3 in this embodiment is set to two, and convex teeth 4 are formed between the two long grooves 3. The long grooves 3 in this embodiment are V-shaped long grooves 3, and the side walls of adjacent V-shaped long grooves 3 cooperate to form triangular convex teeth 4 protruding outward.

[0066] The lengths of the two sides of the triangular convex teeth 4 in this embodiment are different, so that the convex teeth 4 are inclined. Figure 8As shown, the two side edges of the convex tooth 4 are respectively a first edge 41 and a second edge 42; the angle between the first edge 41 and the inner side wall is A1, the angle between the second edge 42 and the inner side is A2, and the size of A1 is not equal to the size of A2. The size of A1 and A2 is between 30° and 80°. A1-A2 is greater than 5°, and the difference between A1 and A2 is greater than 5°. Through the above arrangement, the convex tooth 4 is inclined to one side, so that it can be more suitable for preventing the screw 7 from sliding.

[0067] Since the wrench rotates in different directions when tightening and loosening the screw 7, the convex teeth 4 can cooperate with the outer wall of the screw 7 when rotating in different directions. Therefore, in this embodiment, the convex teeth 4 on the adjacent inner walls of the rotating hole 2 have different inclination directions, that is, the convex teeth 4 on the first side wall surface 21, the third side wall surface 23, and the fifth side wall surface 25 are inclined in the clockwise direction, while the convex teeth 4 on the second side wall surface 22, the fourth side wall surface 24, and the sixth side wall surface 26 are inclined in the counterclockwise direction, so that no matter whether the wrench is rotated clockwise or counterclockwise, there is always an inclined convex tooth 4 to cooperate with the screw 7, so that the screw 7 can be rotated more conveniently.

[0068] The top of the triangular protruding tooth 4 in this embodiment exceeds the end surface of the inner side wall. Figure 8 As shown, taking the tooth surface structure on the first side wall surface 21 as an example, the first side wall surface 21 is the reference line 6, the distance between the top of the triangular convex tooth 4 and the first side wall surface 21 is D1, and the size of D1 is 0 to 3 mm, that is, the top of the triangular convex tooth 4 is flush with the inner side wall. The convex tooth 4 in this embodiment protrudes toward the end surface of the inner side wall, so that the friction between the outer side wall of the screw 7 can be increased, so that the screw 7 can be turned more easily.

[0069] In this embodiment, a tooth surface structure is provided on the inner wall of the rotating hole 2 so that a convex tooth 4 is formed on the inner wall of the rotating hole 2, thereby increasing the friction between the inner wall of the rotating hole 2 and the outer wall of the screw 7, so that the wrench can lock the screw 7 when turning the screw 7, thereby making it easier to turn the screw 7.

[0070] Example 4: Referring to Figures 7 to 14 As shown, an anti-slip wrench includes a wrench head 1. In this embodiment, a ratchet wrench is taken as an example. The wrench head 1 is connected to a wrench handle. A rotating hole 2 is provided on the wrench head 1. The rotating hole 2 is used to cooperate with a screw 7. The rotating hole 2 is a polygon, and at least one surface of the inner wall of the rotating hole 2 is provided with a tooth surface structure.

[0071] The rotating hole 2 can be set into different polygonal styles according to the actual situation of the screw 7. The rotating hole 2 in this embodiment adopts the common hexagonal rotating hole 2. Six inner wall surfaces are formed in the hexagonal rotating hole 2. As shown in the figure, the six inner wall surfaces are respectively the first side wall surface 21, the second side wall surface 22, the third side wall surface 23, the fourth side wall surface 24, the fifth side wall surface 25 and the sixth side wall surface 26 along the clockwise direction.

[0072] In addition, an avoidance angle groove 5 is provided between adjacent inner side walls. When the screw 7 is rotated by a wrench, the corners of the screw 7 are located in the avoidance angle groove 5. The avoidance angle groove 5 and the corners of the screw 7 are separated, so that when the screw 7 is rotated, the corners of the screw 7 are prevented from being worn.

[0073] The tooth surface structure can be provided on only one inner side wall, such as Fig.10 As shown, the tooth surface structure is only provided on the first side wall surface 21. Alternatively, the tooth surface structure can be provided on the opposite inner side wall, such as Fig.11 As shown, the tooth surface structure is only provided on the first side wall surface 21 and the fourth side wall surface 24. In this embodiment, the tooth surface structure is provided on all the inner side walls of the rotating hole 2, that is, Fig.12 As shown, tooth surface structures are provided on the first side wall surface 21 , the second side wall surface 22 , the third side wall surface 23 , the fourth side wall surface 24 , the fifth side wall surface 25 and the sixth side wall surface 26 .

[0074] The tooth surface structure includes a plurality of long grooves 3 arranged along the axial direction of the rotating hole 2, and convex teeth 4 are formed between adjacent long grooves 3, and the number of long grooves 3 is two or more. In this embodiment, the number of long grooves 3 is set to two, and the convex teeth 4 are formed between the two long grooves 3. The long grooves 3 in this embodiment are V-shaped long grooves 3, and the side walls of adjacent V-shaped long grooves 3 cooperate to form triangular convex teeth 4 protruding outward.

[0075] The lengths of the two sides of the triangular convex teeth 4 in this embodiment are different, so that the convex teeth 4 are inclined. Figure 8 As shown, the two side edges of the convex tooth 4 are respectively a first edge 41 and a second edge 42; the angle between the first edge 41 and the inner side wall is A1, the angle between the second edge 42 and the inner side is A2, and the size of A1 is not equal to the size of A2. The size of A1 and A2 is between 30° and 80°. A1-A2 is greater than 5°, and the difference between A1 and A2 is greater than 5°. Through the above arrangement, the convex tooth 4 is inclined to one side, so that it can be more suitable for preventing the screw 7 from sliding.

[0076] Since the wrench rotates in different directions when tightening and loosening the screw 7, the convex teeth 4 can cooperate with the outer wall of the screw 7 when rotating in different directions. Therefore, in this embodiment, the convex teeth 4 on the adjacent inner walls of the rotating hole 2 have different inclination directions, that is, the convex teeth 4 on the first side wall surface 21, the third side wall surface 23, and the fifth side wall surface 25 are inclined in the clockwise direction, while the convex teeth 4 on the second side wall surface 22, the fourth side wall surface 24, and the sixth side wall surface 26 are inclined in the counterclockwise direction, so that no matter whether the wrench is rotated clockwise or counterclockwise, there is always an inclined convex tooth 4 to cooperate with the screw 7, so that the screw 7 can be rotated more conveniently.

[0077] The top of the triangular protruding tooth 4 in this embodiment is flush with the end surface of the inner wall where it is located. Fig.14 As shown, taking the tooth surface structure on the first side wall surface 21 as an example, the first side wall surface 21 is the reference line 6, and the top end of the triangular convex tooth 4 is flush with the first side wall surface 21.

[0078] In this embodiment, a tooth surface structure is provided on the inner wall of the rotating hole 2 so that a convex tooth 4 is formed on the inner wall of the rotating hole 2, thereby increasing the friction between the inner wall of the rotating hole 2 and the outer wall of the screw 7, so that the wrench can lock the screw 7 when turning the screw 7, thereby making it easier to turn the screw 7.

[0079] Embodiment 5: This embodiment is similar in structure to Embodiment 3 or Embodiment 4, except that the inclined convex teeth 4 in this embodiment are arranged in pairs, and each pair of tooth surface structures are arranged on opposite surfaces of the inner side wall of the rotating hole 2, and the convex teeth 4 on the opposite surfaces have different inclined directions. Fig.15 As shown, the inclined protruding teeth 4 are only provided on the first side wall surface 21 and the fourth side wall surface 24. Alternatively, the inclined protruding teeth 4 are only provided on the second side wall surface 22 and the fifth side wall surface 25. Alternatively, the inclined protruding teeth 4 are only provided on the third side wall surface 23 and the sixth side wall surface 26.

[0080] Embodiment 6: This embodiment is similar in structure to Embodiment 3 or Embodiment 4, except that the inclined convex teeth 4 in this embodiment are arranged in pairs, and each pair of tooth surface structures are arranged on opposite surfaces of the inner side wall of the rotating hole 2, and the convex teeth 4 on opposite sides are inclined in the same direction, and the convex teeth 4 of at least one pair of tooth surface structures are inclined in the opposite direction to the other convex teeth 4. Fig.16 As shown, convex teeth 4 inclined in the clockwise direction are arranged on the first side wall surface 21 and the fourth side wall surface 24; convex teeth 4 inclined in the clockwise direction are arranged on the second side wall surface 22 and the fifth side wall surface 25; convex teeth 4 inclined in the counterclockwise direction are arranged on the third side wall surface 23 and the sixth side wall surface 26.

[0081] Embodiment 7: This embodiment is similar in structure to Embodiment 1 or Embodiment 2 or Embodiment 3 or Embodiment 4 or Embodiment 5 or Embodiment 6, except that the anti-slip wrench can also be a socket wrench, an open-end wrench or other wrench structures.

[0082] When the anti-slip tool is a socket wrench, the rotating hole 2 is arranged in the socket.

[0083] When the anti-slip wrench is an open-end wrench, the side wall of the rotating hole 2 is provided with an opening, that is, there is no first side wall surface 21 and the second side wall surface 22, and an opening is formed at the position of the first side wall surface 21 and the second side wall surface 22.

[0084] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. An anti-slip wrench, comprising a wrench head, a rotating hole is provided on the wrench head, and the rotating hole is polygonal, wherein: At least one surface of the inner side wall of the rotating hole is provided with a tooth surface structure; the tooth surface structure comprises a plurality of long grooves arranged along the axial direction of the rotating hole, and convex teeth are formed between adjacent long grooves.

2. The anti-slip wrench according to claim 1, characterized in that: The rotating hole is hexagonal.

3. The anti-slip wrench according to claim 1, characterized in that: The top of the convex tooth is flush with the inner wall where it is located.

4. The anti-slip wrench according to claim 1, characterized in that: The top end of the protruding tooth exceeds the end surface of the inner side wall.

5. The anti-slip wrench according to any one of claims 1 to 4, characterized in that: The convex teeth are arranged obliquely, and the two side edges of the convex teeth are respectively the first edge and the second edge; the angle between the first edge and the inner side wall is A1, and the angle between the second edge and the inner side is A2, and A1 and A2 are not equal.

6. The anti-slip wrench according to claim 5, characterized in that: The sizes of A1 and A2 are between 30° and 80°.

7. The anti-slip wrench according to claim 5, characterized in that: A1-A2 is greater than 5°.

8. The anti-slip wrench according to claim 5, characterized in that: The tooth surface structures are arranged in pairs in the rotating hole, and each pair of tooth surface structures is respectively arranged on opposite surfaces of the inner side wall of the rotating hole.

9. The anti-slip wrench according to claim 8, characterized in that: The tooth surface structures are arranged in at least two pairs, and the inclined direction of the convex teeth of at least one pair of tooth surface structures is opposite to the inclined direction of the other convex teeth.

10. The anti-slip wrench according to any one of claims 1 to 4, characterized in that: An avoidance angle groove is arranged between adjacent inner side walls.

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