TWI908697B - wrench structure - Google Patents

Abstract

This invention relates to a wrench structure, comprising: a first body having a driving part, a pivot and a pivot groove; the pivot having a first internal tooth, a first receiving groove, a first abutment, a second internal tooth, a second receiving groove, a second abutment and a first assembly part; a second body; a control member having a first external tooth, a second external tooth, a first annular groove, a third receiving groove and a fourth receiving groove; a cover; a closing member having a second assembly part and a fifth receiving groove; an elastic element abutting between the control member and the closing member, pressing the cover, the cover causing the control member to move, the elastic element having the function of elastic return; and a screw threaded member disposed on the cover.

Description

wrench structure

This invention relates to a wrench structure, and more particularly to a wrench structure in which, when the control element is in a first position, the elastic element springs against the control element and the sealing element, and the cover and the control element are positioned in the first position, the control element having a positioning function.

As we know from the previous description, a commonly used wrench structure, such as Taiwan Patent Application No. 100108223, Certificate No. I412437, describes a wrench structure consisting of a drive head, a handle, a control component, and a positioning assembly. One end of the drive head is the drive part used to drive the part to be driven, and the other end is the connecting part. One end of the handle is the gripping part for holding. The other end is a hinge portion located between the accommodating spaces. The control member is movably located in the first and second holes and the toothed hole. The handle can drive the drive head to rotate. The positioning group is located in the second hole and blocks the second meshing portion of the control member, so that the second end of the control member can move between the second tooth of the second hinge and the positioning group. This is the structure of the conventional wrench.

However, the shortcomings of this conventional wrench structure are as follows: 1. As shown in the enlarged view of Figure 4, the control element 30 lacks a positioning structure. During operation, the control element 30 may automatically shift at the first hole 111 due to various factors. After the control element 30 automatically shifts, the drive head 10 and the handle 20 will not be able to lock together, making it quite dangerous to apply force by holding the handle 20 when rotating. 2. The positioning assembly is located in the second hole and stops the second toothed part, allowing the second end to move between the second tooth of the second lug and the positioning assembly. However, the lack of automatic reset of the control element makes operation quite inconvenient. 3. As shown in the enlarged view of Figure 4, the first hole 111 is provided with the structure of the first tooth 112, the stop 113 and the annular groove 114. The first tooth 112, the stop 113 and the annular groove 114 have three different inner diameters. The first hole 111 has a limited thickness. When machining the structure of the first tooth 112, the stop 113 and the annular groove 114, the height of the first tooth 112, the stop 113 and the annular groove 114 needs to be divided by three. The height of the first tooth 112, the stop 113 and the annular groove 114 is even smaller. The machining is quite difficult and prone to defects.

In view of the shortcomings of the conventional wrench structure, the inventor, with many years of experience in manufacturing, production, development and design in related industries, has finally developed a product with a wrench structure that can solve the drawbacks of conventional wrench.

Problem to be solved by the invention: In conventional wrench structures, the control component lacks a positioning mechanism. In the wrench structure of the invention, when the control component is in the first position, it is constrained by the sealing member, the elastic element, and the screw member, and the cover and the control component are positioned in the first position, thus the control component has a positioning function.

Technical means for solving the problem: The present invention relates to a wrench structure, which includes: a first body having a driving part, a pivot and a pivot groove; the pivot having a first internal tooth, a first receiving groove, a first abutment, a second internal tooth, a second receiving groove, a second abutment and a first assembly part; a second body; and a control element having a first external tooth. The control member comprises a control member, a second external tooth, a first annular groove, a third receiving groove, and a fourth receiving groove; a cover body; a closure member having a second set of parts and a fifth receiving groove; an elastic element abutting between the control member and the closure member, pressing the cover body, the cover body causing the control member to move, the elastic element having the function of elastic return; and a screw member disposed on the cover body.

Compared with the prior art, when the control member is in the first position, the cover body is accommodated in the first receiving groove, the sealing member is assembled in the second receiving groove, the elastic element is spring-loaded between the control member and the sealing member, and the screw is inserted through the sealing member, the control member, the elastic element and assembled on the cover body. Due to the constraints of the sealing member, the elastic element and the screw, the cover body and the control member are positioned in the first position and are not easily displaced. The control member has the function of positioning. The elastic element is abutted between the sealing member and the control member. When the cover is pressed to move the control member to adjust to various angles, the cover is released, and the elastic element has the function of restoring the elasticity of the cover and the control member.

To ensure that the members of the Bureau of Statistics and those skilled in this art fully understand the effects of this invention, the structure and composition of this invention are explained below with reference to the drawings and figures. However, this explanation is only for illustrating the embodiments of this invention. Therefore, any changes made under the spirit of this invention shall still fall within the protection scope of this invention.

Please refer to Figures 1 to 6. Figure 1 is an exploded perspective view of the wrench structure of the present invention; Figure 2 is a perspective view of the first body 10 of the wrench structure of the present invention; Figure 3 is a front view of the control member 30 of the wrench structure of the present invention; Figure 4 is a perspective assembly view of the cover 40 of the wrench structure of the present invention; Figure 5 is a perspective view of the sealing member 50 of the present invention; and Figure 6 is a perspective assembly view of the wrench structure of the present invention. The present invention relates to a wrench structure, which includes:

A first body 10, one end of which is provided with a driving part 11, which may be a hexagonal groove, a dodecagonal groove, a polygonal groove or various groove structures. The driving part 11 can drive a screw engagement, or the driving part 11 may have a forward and reverse ratchet rotation structure or a one-way ratchet structure, or the driving part 11 may have a four-cornered head protruding to fit a sleeve. The other end of the first body 10 is provided with a pivot 12, which is in the shape of a through hole. The first body 10 is provided with a pivot groove 13, which is in the shape of a horizontally open groove. The pivot groove 13 communicates with the pivot 12 and divides the pivot 12 into upper and lower sides.

The pivot 12 has a first internal tooth 14 on one side, which is in the shape of an internal ring tooth. A first receiving groove 141 is provided on one side of the first internal tooth 14. The diameter of the first receiving groove 141 is larger than that of the first internal tooth 14. A first abutment 142 is formed between the first receiving groove 141 and the first internal tooth 14. A first chamfer 143 is provided between the first internal tooth 14 and the first abutment 142. The first chamfer 143 is in the shape of a chamfer angle.

The other side of the pivot 12 is provided with a second internal tooth portion 15, which is in the shape of an internal ring tooth. A second receiving groove 151 is provided on one side of the second internal tooth portion 15. The diameter of the second receiving groove 151 is larger than the diameter of the second internal tooth portion 15. A second abutment 152 is formed between the second internal tooth portion 15 and the second receiving groove 151. A second chamfer 153 is provided between the second internal tooth portion 15 and the second abutment 152. The second chamfer 153 can be in the shape of a chamfer angle. A first set of parts 154 in the shape of a concave annular groove is provided near the opening of the second receiving groove 151.

The first chamfer 143 or the second chamfer 153 may be in the form of a rounded corner or other chamfer structure;

The first internal tooth portion 14 and the second internal tooth portion 15 are disposed between the first receiving groove 141 and the second receiving groove 151. The first internal tooth portion 14, the first receiving groove 141 and the first abutment 142 are symmetrical with respect to the second internal tooth portion 15, the second receiving groove 151 and the second abutment 152 relative to the first body 10, that is, they are symmetrical with respect to the pivot 13. The first chamfer 143 and the second chamfer 153 are symmetrical with respect to the pivot 13.

A second body 20 is pivotally mounted in the pivot 13. One end of the second body 20 is provided with a third internal tooth 21, which is aligned with the first internal tooth 14 and the second internal tooth 15. The second body 20 can be adjusted to a relative angle with respect to the first body 10.

A control component 30 is assembled at the hub 12 and is movable at the hub 12. The control component 30 has a first external tooth portion 31 and a second external tooth portion 32, and a first annular groove 33 is provided between the first external tooth portion 31 and the second external tooth portion 32. The control component 30 is provided with the first external tooth portion 31, the first annular groove 33 and the second external tooth portion 32 in sequence on its exterior. The diameter of the first annular groove 33 is smaller than that of the first external tooth portion 31 and the second external tooth portion 32. The control member 30 has a third receiving groove 34 and a fourth receiving groove 35 at its axis. The inner diameter of the third receiving groove 34 is smaller than the inner diameter of the fourth receiving groove 35. The third receiving groove 34 and the fourth receiving groove 35 are in communication with each other. The third receiving groove 34 and the fourth receiving groove 35 make the axis of the control member 30 form a through hole. The third receiving groove 34 is located on the side near the first external tooth 31. The depth of the fourth receiving groove 35 extends from the second external tooth 32 and the first annular groove 33 to a portion of the first external tooth 31.

A cover body 40 is fitted to cover and seal the first receiving groove 141. A first threaded part 41 is provided at the axial center of the bottom of the cover body 40. The first threaded part 41 is in the shape of an internal threaded hole. A first protruding post 42 is provided on the bottom surface of the cover body 40. The end face of the first protruding post 42 abuts against the end face of the control member 30. The cover body 40 is linearly displaced at the first receiving groove 141. The cover body 40 drives the control member 30 to move, and the first protruding post 42 is positioned at the first internal tooth 14. The diameter of the first protruding post 42 is smaller than the diameter of the cover body 40 and the inner diameter of the first internal tooth 14 to avoid the first protruding post 42 hitting the first internal tooth 14.

A closure member 50 is assembled at the second receiving groove 151 and seals the second receiving groove 151. A second set portion 51 is provided on the outer periphery of the closure member 50. The second set portion 51 is assembled with the first set portion 154 and is positioned opposite to it. The second set portion 51 is in the shape of a concave annular groove. A fifth receiving groove 52 is provided at the axis of the closure member 50. The fifth receiving groove 52 is in the shape of a through hole. A [missing information - likely a concave or convex shape] is provided on the top of the closure member 50. A second protrusion 53 is accommodated with the fourth receiving groove 35. A sixth receiving groove 54 is provided at the bottom axis of the sealing member 50. The diameter of the sixth receiving groove 54 is larger than that of the fifth receiving groove 52. The sixth receiving groove 54 and the fifth receiving groove 52 are in communication and penetrate the sealing member 50. A third abutment 55 is formed between the sixth receiving groove 54 and the fifth receiving groove 52 due to the difference in diameter.

The sixth receiving groove 54, the fifth receiving groove 52, the fourth receiving groove 35, the third receiving groove 34 and the first threaded part 41 are coaxial, and the second receiving groove 151 and the first receiving groove 141 are also coaxial.

A fastener 60 is fastened between the first set part 154 and the second set part 51. The fastener 60 enables the sealing member 50 to be set at the second receiving groove 151. The fastener 60 is slightly elastic.

An elastic element 70 is abutted between the control member 30 and the sealing member 50. When the cover 40 is pressed, the cover 40 causes the control member 30 to move. The elastic element 70 has the function of elastic return. The elastic element 70 is housed in the fourth receiving groove 35. The elastic element 70 abuts between the bottom of the fourth receiving groove 35 and the end face of the second protrusion 53. The elastic element 70 is a spring structure.

A threaded component 80 is inserted into the sixth receiving groove 54, the fifth receiving groove 52, the elastic element 70, the fourth receiving groove 35, and the third receiving groove 34, and is screwed onto the cover body 40. One end of the threaded component 80 is provided with a larger diameter abutment, which abuts or approaches the third abutment 55. The other end of the threaded component 80 is provided with an external threaded engagement portion, which engages with the first engagement portion 41. The threaded component 80 enables the sealing component 50, the control component 30, the elastic element 70, and the cover body 40 to be assembled.

When the control member 30 is in the first position, the first external tooth 31 meshes with the first internal tooth 14 and the third internal tooth 21, and the second external tooth 32 meshes with the second internal tooth 15, so that the first body 10 and the second body 20 are fixed at a relative angle due to the control member 30. The cover 40 is accommodated in the first receiving groove 141, the sealing member 50 is assembled in the second receiving groove 151, and the screw 80 passes through the sealing member 50, the control member 30 and the elastic element 70 and is screwed onto the cover 40. Due to the restriction of the sealing member 50, the elastic element 70 and the screw 80, the cover 40 and the control member 30 are positioned in the first position.

When the cover 40 is pressed, it shifts and approaches the first abutment 142. The first protrusion 42 is aligned with the first internal tooth 14. The control member 30 is moved to the second position. The elastic element 70 is compressed. The first external tooth 31 engages with the third internal tooth 21. The first external tooth 31 does not engage with the first internal tooth 14. The second external tooth 32 shifts to the second receiving groove 151. The second external tooth 32 does not mesh with the second internal tooth 15, that is, the control member 30 does not mesh with the first internal tooth 14 and the second internal tooth 15. The control member 30 only meshes with the third internal tooth 21. The angle between the first body 10 and the second body 20 is adjustable without being restricted by the control member 30. When the cover 40 is displaced, the cover 40 drives the screw engagement member 80 to move at the fifth receiving groove 52.

Please continue to refer to Figures 7 to 9. Figure 7 is a top view of the wrench structure of the present invention, Figure 8 is a cross-sectional view at point A-A in Figure 7, and Figure 9 is an enlarged view at point B in Figure 8. The control member 30 is housed within the pivot 12 and is located in the first position. The retaining ring 60 is fastened to the first set of parts 154 and the second set of parts 51. The sealing member 50 is closed and assembled in the second receiving groove 151. The screw member 80 is inserted into the sealing member 50, the elastic element 70 and the control member 30 and screwed onto the first screw part 41, so that the sealing member 50, the elastic element 70, the control member 30 and the cover body 40 are assembled together. The cover body 40 is pivoted at the first receiving groove 141 and can move up and down by a distance.

Please continue to refer to Figure 10, which is a cross-sectional view at point B of the wrench structure of the present invention during operation. When the cover 40 is pressed, the control member 30 is in the second position. The first protrusion 42 is aligned with the first internal tooth 14, the first external tooth 31 engages with the third internal tooth 21, the first annular groove 33 is aligned with the second internal tooth 15, the second external tooth 32 is accommodated in the second receiving groove 151, and the second body 20 can be adjusted in angle relative to the first body 10. Figure 11 is a perspective view of the wrench structure of the present invention during operation.

In another embodiment of the present invention, as shown in Figure 9, the control member 30 can be integral with the cover 40, that is, the end of the control member 30 protrudes from the cover 40. The third receiving groove 34 is provided with the first threaded portion 41 inward, or the first threaded portion 41 can be any structure. The end of the threaded member 80 only needs to be assembled with the first threaded portion 41. Alternatively, the first set portion 154 is threaded, the second set portion 51 is threaded, and the second set portion 51 is directly threaded with the first set portion 154, which also has the same effect.

The advantages of the wrench structure of this invention are as follows: 1. When the control member 30 is in the first position, the cover body 40 is accommodated in the first receiving groove 141, the sealing member 50 is assembled in the second receiving groove 151, the elastic element 70 springs against the control member 30 and the sealing member 50, and the screw engagement member 80 passes through the sealing member 50, the control member 30, and the elastic element 70 and is assembled on the cover body 40. Due to the constraints of the sealing member 50, the elastic element 70 and the screw engagement member 80, the cover body 40 and the control member 30 are positioned in the first position and are not easily displaced. The control member 30 has the function of positioning. 2. The elastic element 70 is spring-loaded between the sealing member 50 and the control member 30. When the cover body 40 is pressed, the control member 30 is displaced to adjust the required angles of the second body 20 relative to the first body 10. After the cover body 40 is released, the elastic element 70 has the function of elastically restoring the cover body 40 and the control member 30. 3. The outer periphery of the control member 30 is only provided with the first external tooth 31, the second external tooth 32 and the first annular groove 33. The basic structure of the control member 30 is relatively simple, and the control member 30 can be designed with a smaller thickness. The first body 10 has various specifications, with the smallest specification being the 8mm drive part 11, which is more suitable for the control member 30. 4. The control component 30 only has the first external tooth portion 31, the second external tooth portion 32, and the first annular groove 33. The structure of this invention is simple in design and easier to process, reducing the defect rate during manufacturing. 5. The threaded part 80 is threaded with the first threaded part 41. The threaded part 80 enables the sealing part 50, the control component 30, and the cover body 40 to be assembled. The sealing part 50 is assembled at the second receiving groove 151. The control component 30, the elastic element 70, the cover body 40, the sealing part 50, and the elastic element 70 are assembled without coming off. 6. When the cover 40 is displaced, the cover 40 drives the threaded engagement 80 to move, and the threaded engagement 80 moves linearly at the fifth receiving groove 52. The threaded engagement 80 and the fifth receiving groove 52 have the function of restricting linear displacement. 7. As shown in the enlarged view at point B in Figure 9, the first internal tooth 14, the first receiving groove 141 and the first abutment 142, and the second internal tooth 15, the second receiving groove 151 and the second abutment 152 have two different inner diameters, that is, a two-layer structure and a symmetrical structure. The pivot 12 is easy to process, and the control member 30, the cover 40, the sealing member 50 and the elastic element 60 can achieve their functions no matter which direction they are assembled from. 8. The control component 30 is assembled at the hub 12, the sealing component 50 is assembled at the second receiving groove 151, and the second protrusion 53 is fitted into the fourth receiving groove 35. That is, each pair of the body 10, the control component 30, and the sealing component 50 has a matching relationship, resulting in a better matching structure. 9. The threaded component 80 extends through the third receiving groove 34 and the fifth receiving groove 52, and the second protrusion 53 is fitted into the fourth receiving groove 35. That is, each pair of the control component 30, the sealing component 50, and the threaded component 80 has a matching relationship, resulting in a better matching structure for the control component 30, the sealing component 50, and the threaded component 80.

Therefore, the wrench structure of this invention has industrial applicability, novelty and progress, and can meet the application requirements for an invention patent. Therefore, this application is filed in accordance with the law.

10: First Body 11: Drive Unit 12: Hub 13: Hub Groove 14: First Internal Gear 141: First Receiving Groove 142: First Abutment 143: First Chamfer 15: Second Internal Gear 151: Second Receiving Groove 152: Second Abutment 153: Second Chamfer 154: First Assembly Unit 20: Second Body 21: Third Internal Gear 30: Control Component 31: First External Gear 32: Second External Gear 33: First Annular Groove 34: Third Receiving Groove 35: Fourth Receiving Groove 40: Cover 41: First Threaded Part 42: First Protrusion 50: Sealing Component 51: Second Assembly Unit 52: Fifth Receiving Groove 53: Second Protrusion 54: Sixth groove; 55: Third abutment; 60: Snap ring; 70: Elastic element; 80: Threaded part.

[Figure 1] is an exploded perspective view of the wrench structure of the present invention. [Figure 2] is a perspective view of the first body of the wrench structure of the present invention. [Figure 3] is a front view of the control component of the wrench structure of the present invention. [Figure 4] is a perspective view of the cover of the wrench structure of the present invention. [Figure 5] is a perspective view of the sealing component of the wrench structure of the present invention. [Figure 6] is a perspective assembly view of the wrench structure of the present invention. [Figure 7] is a top view of the wrench structure of the present invention. [Figure 8] is a sectional view along line A-A in Figure 7 of the wrench structure of the present invention. [Figure 9] is an enlarged view of section B in Figure 8 of the wrench structure of the present invention. [Figure 10] is an enlarged view of section B in the operating state of Figure 8 of the wrench structure of the present invention. [Figure 11] is a perspective view of the wrench structure of the present invention during operation.

10: The First Body

11: Drive Unit

12: Shubu (樞部)

13: Pivot Channel

14: First internal teeth

141: First Container

142: First Encounter

143: First Chamfer

20: The Second Body

21: Third internal teeth

30: Control components

40: Cover

50: Closed component

51: Second Group Establishment

52: Fifth Container

53: Second convex pillar

60: Buckle

70: Flexible element

80: Screw assembly

Claims (13)

A wrench structure includes: a first body, one end of which is provided with a driving part, and the other end of which is provided with a pivot part, the pivot part being in the shape of a through hole, and the first body having a pivot groove; a first internal tooth part being provided on one side of the pivot part, the first internal tooth part being in the shape of an internal ring tooth, and a first receiving groove being provided on one side of the first internal tooth part, the diameter of the first receiving groove being larger than that of the first internal tooth part, and a first abutment being formed between the first receiving groove and the first internal tooth part; The other side of the pivot has a second internal tooth, which is in the shape of an internal ring tooth. A second receiving groove is provided on one side of the second internal tooth, the diameter of which is larger than the diameter of the second internal tooth. A second abutment is formed between the second internal tooth and the second receiving groove. A first set of fittings is provided near the opening of the second receiving groove. A second body is pivotally mounted in the pivot groove. A third internal tooth is provided at one end of the second body. The third internal tooth is aligned with the first internal tooth and the second internal tooth. The second body can be adjusted to a relative angle with respect to the first body. A control component is assembled at the hub and is movable at the hub. The control component has a first external tooth and a second external tooth, and a first annular groove is provided between the first external tooth and the second external tooth. The first external tooth, the first annular groove, and the second external tooth are sequentially provided on the outside of the control component. The diameter of the first annular groove is smaller than that of the first external tooth and the second external tooth. A third receiving groove and a fourth receiving groove are provided at the axis of the control component. The inner diameter of the third receiving groove is smaller than that of the fourth receiving groove. The third receiving groove and the fourth receiving groove are in communication with each other. The third receiving groove and the fourth receiving groove make the axis of the control component form a through hole. A cover body, which fits and seals the first receiving groove, and the cover body moves linearly at the first receiving groove, thereby causing the control component to move; a closing component, which is assembled at the second receiving groove and seals the second receiving groove, the outer periphery of the closing component is provided with a second set of parts, the second set of parts being assembled with the first set of parts, the axial center of the closing component is provided with a fifth receiving groove, the fifth receiving groove being in the form of a through hole; an elastic element, which springs against the control component and the closing component, pressing the cover body, the cover body causing the control component to move, the elastic element having the function of elastic return; A screw thread is provided on the cover body. As described in claim 1, the drive part may be a hexagonal groove, a dodecagonal groove, a polygonal groove, or a groove structure of various kinds. The drive part may drive a screw thread, or the drive part may have a forward and reverse ratchet rotation structure or a one-way ratchet structure, or the drive part may have a four-cornered head protruding to fit a sleeve. The pivot is a horizontally open slot, the pivot is connected to the pivot, and the pivot divides the pivot into upper and lower sides. As described in claim 1, the wrench structure includes a first chamfer between the first internal tooth and the first abutment, the first chamfer being a beveled angle; a second chamfer between the second internal tooth and the second abutment, the second chamfer being a beveled angle; the first chamfer or the second chamfer being a rounded corner or other chamfer structure; and the first chamfer and the second chamfer being symmetrical with respect to the pivot. The wrench structure as described in claim 1, wherein the first set of parts is in the shape of a concave annular groove; the second set of parts is in the shape of a concave annular groove; a buckle is provided, the buckle is fastened between the first set of parts and the second set of parts, the buckle is used to assemble the sealing member at the second receiving groove, and the buckle is slightly elastic. The wrench structure as described in claim 1, wherein the first internal tooth portion and the second internal tooth portion are disposed between the first receiving groove and the second receiving groove, and the first internal tooth portion, the first receiving groove and the first abutment portion are symmetrical with respect to the second internal tooth portion, and the second receiving groove and the second abutment portion are symmetrical with respect to the first body, that is, symmetrical with respect to the pivot. The wrench structure as described in claim 1, wherein the third groove is provided on one side near the first external tooth, and the depth of the fourth groove extends from the second external tooth and the first annular groove to a portion of the first external tooth. As described in claim 1, the wrench structure includes a first threaded portion at the axial center of the bottom of the cover, the first threaded portion being an internally threaded hole; a second protrusion is provided above the sealing member, the second protrusion being compatible with the fourth receiving groove; a sixth receiving groove is provided at the axial center of the bottom of the sealing member, the diameter of the sixth receiving groove being larger than that of the fifth receiving groove; the sixth receiving groove and the fifth receiving groove are interconnected; the sixth receiving groove and the fifth receiving groove penetrate the sealing member; the sixth receiving groove and the fifth receiving groove... A third abutment is formed between the grooves due to the difference in diameter; the threaded component passes through the sixth and fifth receiving grooves, the elastic element, the fourth receiving groove, and the third receiving groove and is screwed onto the cover. One end of the threaded component has a larger diameter abutment, which abuts or approaches the third abutment. The other end of the threaded component has an external threaded engagement portion, which engages with the first engagement portion. The threaded component assembles the sealing component, the control component, the elastic element, and the cover. As described in claim 1, the cover body has a first protruding post on its bottom surface. The end face of the first protruding post abuts against the end face of the control member. The cover body is linearly displaced at the first receiving groove. The cover body drives the control member to move, and the first protruding post is positioned at the first internal tooth portion. The diameter of the first protruding post is smaller than the diameter of the cover body and the inner diameter of the first internal tooth portion, so as to avoid the first protruding post hitting the first internal tooth portion. As described in claim 7, the sixth groove, the fifth groove, the fourth groove, the third groove and the first threaded portion are coaxial, and the second groove and the first groove are also coaxial. The wrench structure as described in claim 9, wherein the elastic element is housed in the fourth receiving groove, the elastic element abuts against the bottom of the fourth receiving groove and the end face of the second protrusion, and the elastic element is a spring structure. As described in claim 1, in the wrench structure, when the control member is in the first position, the first external tooth meshes with the first internal tooth and the third internal tooth, and the second external tooth meshes with the second internal tooth, so that the first body and the second body are fixed at a relative angle due to the control member. The cover is housed in the first receiving groove, the sealing member is assembled in the second receiving groove, and the threaded member passes through the sealing member, the control member, and the elastic element and is screwed onto the cover. The sealing member, the elastic element, and the threaded member restrict the sealing member, the elastic element, and the threaded member, and the cover and the control member are positioned in the first position. As described in claim 1, in the wrench structure, when the cover is pressed, the cover is displaced and approaches the first abutment; the first protrusion is aligned with the first internal tooth; the control element is moved to the second position; the elastic element is compressed; the first external tooth engages with the third internal tooth; the first external tooth does not engage with the first internal tooth; and the second external tooth is positioned... When moved to the second receiving groove, the second external tooth does not mesh with the second internal tooth, that is, the control member does not mesh with the first internal tooth and the second internal tooth. The control member only meshes with the third internal tooth. The angle between the first body and the second body is adjustable without being restricted by the control member. When the cover body is displaced, the cover body drives the screw to move at the fifth receiving groove. As described in claim 1, the control member can be integral with the cover, that is, the end of the control member protrudes from the cover. The third receiving groove is provided with the first threaded portion inward, or the first threaded portion can be any structure. The end of the threaded member only needs to be assembled with the first threaded portion. Alternatively, the first assembly portion is threaded, the second assembly portion is threaded, and the second assembly portion is directly threaded with the first assembly portion.