A wrench

Abstract

The present invention discloses a wrench, comprising a handle portion and a clamping portion, wherein the handle portion is integrally connected with a baffle, the baffle being clamped on the outer side of the clamping portion, the clamping portion being sequentially sleeved with a plurality of hollow clamps from the inside out, a plurality of hooks being provided on at least one side of the clamping portion, the hooks including an upper hook and a lower hook, a plurality of slots adapted to the hooks being provided on at least one side of the clamping portion, the hooks and the slots being on the same or different sides, the hooks at different positions sliding into or out of the slots to achieve relative movement of adjacent clamps, a ratchet rotor being provided around the outermost clamping portion, and a transmission member being provided at one end of the handle portion near the clamping portion for use in conjunction with the ratchet rotor to achieve forward and reverse rotation of the ratchet rotor. The wrench of the present invention can achieve adjustable opening size, so as to tighten or loosen parts of different sizes to be rotated, and can also achieve continuous turning of the parts to be rotated without leaving the parts to be rotated during the turning process, thereby improving work efficiency.

Description

Technical Field

[0001] The present invention relates to a hand tool, in particular to a wrench. Background Art

[0002] Currently, the main types of wrenches commonly used in production and daily life include fixed wrenches, adjustable wrenches, and ratchet wrenches. Fixed wrenches have a fixed-size opening at one or both ends, making a single wrench incapable of adapting to diverse work needs. Therefore, they are manufactured in a variety of sizes, requiring multiple wrenches to be carried for complex tasks. Adjustable wrenches have an adjustable opening width within a certain range, allowing them to tighten bolts or nuts of varying sizes. However, existing adjustable wrenches only have handles that rotate a small angle, requiring multiple consecutive rotations of the workpiece to tighten or loosen the bolts. Between rotations, the wrench must be paused and rotated in the opposite direction. This is typically done by removing the wrench from the workpiece, rotating it back, and then re-installing it. This method is inconvenient and inefficient. A ratchet handle can simplify this operation, allowing the wrench to rotate without removing it from the workpiece. However, the opening of a typical ratchet wrench is fixed in size and cannot be adjusted, making it very inconvenient. Combining a ratchet structure with an adjustable opening is even more challenging. Summary of the Invention

[0003] In order to solve the problem that the existing adjustable wrench has an adjustable opening but needs to be temporarily separated from the workpiece before it can be rotated and then re-inserted for rotation, which is cumbersome and inefficient to operate, the purpose of the present invention is to provide a wrench with an adjustable opening size and can be rotated continuously and quickly without being separated from the workpiece. The wrench is suitable for both external hexagonal parts and internal hexagonal parts, is simple to operate, and improves work efficiency.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a wrench, comprising a handle portion and a clamping portion, the handle portion being integrally connected with a baffle, the baffle being clamped on the outside of the clamping portion, the clamping portion being sequentially sleeved with a plurality of hollow clamping parts from the inside to the outside, at least one side of the clamping part being provided with a plurality of hook bodies, the hook bodies comprising an upper hook body and a lower hook body, at least one side of the clamping part being provided with a plurality of groove bodies adapted to the hook body, the hook body and the groove body being on the same or different sides, the hook bodies at different positions sliding into or out of the groove body to realize relative movement of adjacent clamping parts, the clamping part being provided with a ratchet rotor surrounding the outermost clamping part, and the end of the handle portion close to the clamping part being provided with a transmission part used in conjunction with the ratchet rotor to realize forward and reverse rotation of the ratchet rotor.

[0005] In which, the transmission member includes a column, a knob is provided at the top of the column, a first pawl and a second pawl are cross-sleeved at the bottom of the column, a fixed rod is connected to one side of the column, and a rotating rod is connected to the other side of the column. A fixed groove is provided on the side of the handle close to the transmission member, the fixed rod is located in the fixed groove, and moves back and forth in the fixed groove under the action of external force, the rotating rod is located between the first pawl and the second pawl, and the ratchet rotor is engaged with the first pawl or the second pawl.

[0006] Wherein, the outer shape of the clamping portion is circular, and the cross section of the clamping piece is a regular hexagon.

[0007] Wherein, the connecting line of the upper hook body and the lower hook body is perpendicular to the horizontal plane, and the position of the groove body corresponds to that of the upper hook body or the lower hook body.

[0008] Wherein, the hook body further includes a concave body, and the concave body is adapted for use with the groove body.

[0009] The connecting line between the concave body, the upper hook body and the lower hook body is perpendicular to the horizontal plane, the concave body is located between the upper hook body and the lower hook body, and the positions of the groove body and the concave body correspond to each other.

[0010] The connecting lines of the upper hook body and the lower hook body and the concave body are perpendicular to the horizontal plane, the upper hook body and the lower hook body are located on different plumb lines, and the positions of the groove body and the concave body correspond to each other.

[0011] A cavity is provided on one side of the upper end of the clamping part, and a through hole connecting all the clamping parts is also provided in the clamping part. A plurality of fasteners are provided in the cavity, and the fasteners include an extending end, one end of the extending end is connected to the second spring, a protrusion is provided on the upper end of the extending end, and the end of the second spring away from the extending end is fixed to the cavity.

[0012] There is one fastener, which is located on the left or right side of the cavity.

[0013] There are two fasteners, which are arranged opposite to each other on the left and right, and are respectively the first fastener and the second fastener.

[0014] The clamping part is provided with a cavity which passes through all the clamping parts, a screw is placed through the cavity, and nuts are threadedly connected at both ends of the screw, and the nut is located outside the largest clamping part of the clamping part.

[0015] Among them, a slide and a slide rod are provided in the clamping part, the slide passes through the clamping part on one side of the clamping part, one end of the slide rod is slidably connected to the slide, and the other end of the slide rod is movably connected to the clamping part through a shaft.

[0016] A sliding rod is also provided in the clamping portion, one end of which is located in the slideway and moves back and forth in the slideway under the action of external force.

[0017] Among them, a rod body is provided in the clamping part, and the rod body is located outside all the clamping parts. The upper and lower ends of the rod body are movably connected with an upper slide and a lower slide respectively, and the upper slide and the lower slide are clamped at the upper and lower ends of the clamping part.

[0018] Compared with the prior art, the present invention achieves the following beneficial effects: the wrench of the present invention can realize adjustable opening size, and can tighten or loosen parts to be screwed of different sizes, and can realize continuous turning of the parts to be screwed, without leaving the parts to be screwed during the turning process, thereby improving work efficiency; the wrench of the present invention can extend the clamping parts according to actual needs through the coordinated use of the adjacent clamping parts hook body and the groove body, and is suitable not only for external hexagonal parts but also for internal hexagonal parts, and the control process is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] Figure 1 A top view of the wrench disclosed in Example 1 of the present invention;

[0021] Figure 2 A diagram showing the connection relationship between adjacent sets of components in the wrench disclosed in Example 1 of the present invention;

[0022] Figure 3 This is a front view of the wrench disclosed in Example 1 of the present invention;

[0023] Figure 4 for Figure 3 Cross-section in the middle bb direction;

[0024] Figure 5 This is a schematic structural diagram of the transmission component in the wrench disclosed in Example 1 of the present invention;

[0025] Figure 6 This is a diagram of the wrench in use disclosed in Example 1 of the present invention;

[0026] Figure 7 A top view of the wrench disclosed in Example 2 of the present invention;

[0027] Figure 8 for Figure 7 A partial enlarged view of point A;

[0028] Figure 9 for Figure 8 Cross-section in the cc direction;

[0029] Figure 10 This is a schematic diagram of the wrench disclosed in Example 2 of the present invention in a first usage state;

[0030] Figure 11 This is a schematic diagram of the second usage state of the wrench disclosed in Example 2 of the present invention;

[0031] Figure 12 A front view of the wrench disclosed in Example 3 of the present invention;

[0032] Figure 13 A top view of the wrench disclosed in Example 3 of the present invention;

[0033] Figure 14 for Figure 13 Cross-section in the dd direction

[0034] Figure 15 This is a schematic diagram of the wrench disclosed in Example 3 of the present invention in a first usage state;

[0035] Figure 16 This is a schematic diagram of the second usage state of the wrench disclosed in Example 3 of the present invention;

[0036] Figure 17 A top view of the wrench disclosed in Example 4 of the present invention;

[0037] Figure 18 for Figure 17 Cross-section diagram in ee direction;

[0038] Figure 19 A front view of the wrench disclosed in Example 5 of the present invention;

[0039] Figure 20 A top view of the wrench disclosed in Example 5 of the present invention.

[0040] Wherein: clamping part 1, clamping part 2, hook body 3, ratchet rotor 5, handle part 6, transmission part 7, column 8, knob 9, first pawl 10, second pawl 11, fixing rod 12, rotating rod 13, fixing groove 14, cavity 17, through hole 18, fastener 19, protruding end 20, second spring 21, protrusion 22, first fastener 23, second fastener 24, cavity 25, screw 26, slide 28, slide rod 29, upper slide 31, lower slide 32, upper hook body 33, lower hook body 33-1, recessed body 34, groove body 36, first spring 37. DETAILED DESCRIPTION

[0041] The following describes the implementation of the present invention through specific embodiments. People skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0042] See also Figures 1 to 20. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0043] Example 1

[0044] like Figure 1 、 2 A wrench includes a handle portion 6 and a clamping portion 1. The clamping portion 1 has a circular shape. The handle portion 6 is integrally connected to a baffle that is clamped to the outside of the clamping portion 1. The clamping portion 1 is sequentially fitted with a plurality of hollow clamping members 2 from the inside out. The cross-section of the clamping members 2 is a regular hexagon. Hooks are provided on two non-adjacent side surfaces of the clamping members 2. The hooks include an upper hook 33, a lower hook 33-1, and two recesses 34. The upper hook 33 extends inward and downward from the side of the clamping member 2, the lower hook 33-1 extends inward and upward from the side of the clamping member 2, and the recess 34 extends inward from the side of the clamping member 2 to form a groove. The upper hook 33 and a concave body 34 are on the same side, and the line connecting the upper hook 33 and the concave body 34 is perpendicular to the horizontal plane. The lower hook 33-1 and the other concave body 34 are on the other side, and the line connecting the lower hook 33-1 and the concave body 34 is perpendicular to the horizontal plane. Grooves 36 are respectively provided on the other two non-adjacent sides of the clamp 2, and the grooves 36 are at the same height as the corresponding concave bodies 34.

[0045] Before use, the various clips 2 in the clamping part 1 are tightly fitted with each other and are in the same plane. At this time, the concave bodies 34 are respectively located in the groove bodies 36. When it is necessary to tighten or loosen the hexagonal parts to be rotated, such as nuts, bolts, screws, and nuts, select the clips 2 in the appropriate position according to the size of the hexagonal parts to be rotated, such as clip B, and name the clips 2 adjacent to clip B as clip A and clip C respectively. Clip A is located on the inner side of clip B, and clip C is located on the outer side of clip B. Press down all the clips from B inward (including clip B), and clamp the concave body 34 in clip B in the groove body 36 in clip A, and the upper hook body 33 in clip C is clamped in the groove body 36 in clip B. Clip B extends out of the clamping part 1, and the part to be rotated is sleeved on clip B, and the part to be rotated is tightened or loosened.

[0046] In actual operation, the clip B can be extended out of the clamping part 1 alone, or the clip B and all the clips 2 inside the clip B can be extended out of the clamping part 1 together. The two methods are equivalent in effect and will not affect the tightening or loosening operation process of the hexagonal part to be rotated. However, when it is necessary to tighten or loosen the hexagonal part to be rotated, taking the clip B as an example, the inner diameter of the clip B is equivalent to the outer diameter of the part to be rotated. At this time, all the clips 2 inside the clip B need to be extended out of the clamping part 1 in opposite directions. At this time, the clamping part 1 forms an inner hexagonal recess on the side opposite to the hexagonal part to be rotated, which can just cover the hexagonal part to be rotated and perform the tightening or loosening operation on the part to be rotated.

[0047] The upper hook body 33, the lower hook body 33-1, and the concave body 34 can be on different sides or on the same side. When they are on the same side, the upper hook body 33, the lower hook body 33-1, and the concave body 34 are on the same plumb line, and the concave body 34 is located between the upper hook body 33 and the lower hook body 33-1. At this time, the setting position of the groove body 36 still corresponds to the concave body 34.

[0048] The upper hook body 33 , the lower hook body 33 - 1 and the concave body 34 may extend inwards or outwards from the side of the clamping member 2 .

[0049] In addition, the hook body may only have the upper hook body 33 and the lower hook body 33-1 without the recessed body 34. In this case, the upper hook body 33 and the lower hook body 33-1 are on the same vertical line, and the groove body 36 corresponds to the position of the upper hook body 33 or the lower hook body.

[0050] In addition, the groove body 36 can be located on the same side as the hook body, or on a different side as the hook body.

[0051] like Figure 3 、 4 , 5. The clamping part 1 is provided with a ratchet rotor 5 around the clamping part 2, and a transmission part 7 is provided at one end of the handle part 6 near the clamping part 1. The transmission part 7 includes a column 8, a knob 9 is provided at the top of the column 8, and a first pawl 10 and a second pawl 11 are cross-sleeved at the bottom end of the column 8. A fixing rod 12 is connected to one side of the column 8, and a rotating rod 13 is connected to the other side of the column 8. A fixing groove 14 is provided on the side of the handle part 6 near the transmission part 7. The fixing rod 12 is located in the fixing groove 14 and moves back and forth in the fixing groove 14 under the action of external force. The rotating rod 13 is located between the first pawl 10 and the second pawl 11. The first pawl 10 and the second pawl 11 are connected to the handle part 6 through a first spring 37, and the ratchet rotor 5 is engaged with the first pawl 10 or the second pawl 11.

[0052] When the handle portion 6 needs to be rotated counterclockwise, the knob 9 is rotated counterclockwise, and the fixed rod 12 and the rotating rod 13 rotate accordingly. Since the fixing groove 14 is an eight-shaped groove, which is wide at both ends and narrow in the middle, the contact end of the fixing rod 12 and the fixing groove 14 has a certain elasticity. The fixing rod 12 is fixed to one end of the fixing groove 14 under the action of external force. At the same time, the rotating rod 13 presses against the first pawl 10 (the second pawl 11), so that the first pawl 10 (the second pawl 11) cannot contact the ratchet rotor 5, and the second pawl 11 (the first pawl 10) contacts the ratchet rotor 5. The handle portion 6 is pulled counterclockwise, and the second pawl 11 (the first pawl 10) engages with the ratchet rotor 5. The handle portion 6 is continuously pulled. When tightening or loosening the component to be rotated, there is no need to leave the component to be rotated during the turning process, and the operation efficiency is higher; on the contrary, when the handle part 6 needs to be turned clockwise, the knob 9 is turned clockwise, and the fixing rod 12 and the rotating rod 13 rotate accordingly, so that the fixing rod 12 is fixed to the other end of the fixing groove 14, and the rotating rod 13 presses the second pawl 11 (first pawl 10), so that the second pawl 11 (first pawl 10) cannot contact the ratchet rotor 5, and the first pawl 10 (second pawl 11) contacts the ratchet rotor 5, and the handle part 6 is turned clockwise, and the first pawl 10 (second pawl 11) engages with the ratchet rotor 5, and the handle part 6 can be continuously turned to loosen or tighten.

[0053] like Figure 6 To tighten or loosen the hexagonal socket component to be rotated, select the clamping part 2 at the appropriate position according to the size of the inner diameter of the component to be rotated, press down the clamping part 2 or all the clamping parts 2 located in the clamping part 2, so that the relative position of the clamping part 2 and the adjacent clamping parts 2 is stable. At this time, pull the handle part 6 to tighten or loosen the component to be rotated.

[0054] The wrench of the present invention realizes the extension of part of the clamping part 2 and the fixing process of the adjacent clamping part 2 through the arrangement of the upper hook body 33, the lower hook body 33-1, the concave body 34 and the groove body 36 of the adjacent clamping part 2. The operation is simple and convenient. At the same time, it can realize the tightening or loosening operation of the parts to be screwed of different sizes and different types (hexagonal inner or hexagonal outer); and during the tightening or loosening operation, there is no need to leave the part to be screwed, and the operation is continuous, which improves work efficiency.

[0055] Example 2

[0056] like Figure 7 、 89. Different from Example 1, a cavity 17 is provided on one side of the upper end of the clamping portion 1, a through hole 18 connecting all the clamping parts 2 is provided in the clamping portion 1, a fastener 19 is provided in the cavity 17, and there are two fasteners 19, which are arranged opposite to each other on the left and right, namely a first fastener 23 and a second fastener 24. The fastener 19 includes an extending end 20, one end of the extending end 20 is connected to the second spring 21, a protrusion 22 is provided on the upper end of the extending end 20, and the end of the second spring 21 away from the extending end 20 is placed in the cavity 17.

[0057] The upper end of the protrusion 22 can be provided with an external thread, which is threadedly connected to a nut, and the outer end of the nut is clamped on the adjacent clamping member 2. Since the protruding ends 20 of the first fastener 23 and the second fastener 24 are snap-fitted, the nut on the upper end of the first fastener is fixed to the clamping member 2, the nut on the upper end of the second fastener 24 is loosened, and the second fastener 24 is pushed downward, so that the clamping member 2 below the second fastener 24 extends downward, which is used to tighten or loosen the hexagonal inner screw component to be screwed; when it is necessary to tighten or loosen the hexagonal outer screw component to be screwed, the nut above the second fastener 24 is tightened, the nut above the first fastener 23 is loosened, and the clamping member 2 below the first fastener 23 is pushed upward.

[0058] like Figure 10 To tighten or loosen the state diagram of the hexagonal socket to be rotated component, first loosen the nuts on the first fastener 23 and the second fastener 24 according to the size of the hexagonal socket of the component to be rotated, slide the first fastener 23 and the second fastener 24 so that the second fastener 24 is located above the clamping member 2 that is adapted to the inner diameter of the component to be rotated, and at the same time, press the second fastener 24 downward, and the multiple clamping members 2 located below the second fastener 24 move downward accordingly, until the protruding end 20 of the second fastener 24 is located at the left end position of the through hole 18, loosen the second fastener 24, and the second fastener 24 enters the through hole 18 under the elastic force of the second spring 21, so that the multiple clamping members 2 below the second fastener 24 and the adjacent clamping members 2 are in a fixed position.

[0059] like Figure 11 To tighten or loosen the state diagram of the external hexagonal component to be rotated, first press the second fastener 24 according to the size of the external hexagon of the component to be rotated, so that the second fastener 24 is located above the clamping member 2 that is adapted to the outer diameter of the component to be rotated. At the same time, push the clamping member 2 upward, driving the second fastener 24 and all the clamping members 2 located inside the clamping member 2 to move upward. When the protruding end 20 of the first fastener 23 is located at the right end position of the through hole 18, the clamping member 2 and the second fastener 24 stop moving upward, so that the multiple clamping members 2 below the second fastener 24 and the adjacent clamping members 2 are in a fixed position.

[0060] The adjacent clips 2 of the clamping part 1 are used in conjunction with the upper hook body 33, the lower hook body 33-1, and the concave body 34 through the groove body 36 to achieve the fixing effect of the adjacent clips 2. The protruding end 20 of the first fastener 23 or the second fastener 24 is inserted into the through hole 18 to achieve the secondary fixing effect of the adjacent clips 2. The double fixing effect makes the connection between the clamping part 1 and the part to be rotated more stable, avoiding the problem of some clips 2 in the clamping part 1 falling off during use.

[0061] Example 3

[0062] like Figure 12 、 13 , 14. What is different from Example 1 is that a cavity 25 is provided in the clamping part 1, which passes through all the clamping parts 2. The cavity 25 has a certain height. The left and right outermost sides of the cavity 25 are fixed on the clamping part 1. A screw 26 is placed through the cavity 25. Nuts are threadedly connected at both ends of the screw 26. The nut is located on the outside of the largest clamping part 2 of the clamping part 1 and is used to fix the clamping part 2.

[0063] like Figure 15 To tighten or loosen the external hexagonal part to be rotated, according to the size of the external hexagon of the part to be rotated, press the clamping piece 2 that is adapted to the inner diameter of the part to be rotated and all the clamping pieces 2 inside the clamping piece 2 to move upward. When they reach a certain position, tighten the nut. All the clamping pieces 2 located in the clamping part 1 are fixed. At this time, the part to be rotated can be covered for tightening or loosening operations.

[0064] like Figure 16 To tighten or loosen a hexagon socket part, push the clamp 2 that matches the outer diameter of the part and all the clamps 2 inside it downward, depending on the size of the hexagon socket. When they reach a certain position, tighten the nut. At this point, you can insert the part to be tightened or loosened.

[0065] Example 4

[0066] like Figure 17 、 18 , which is different from Example 1, a slide 28 and a slide rod 29 are provided in the clamping part 1. The slide 28 passes through the clamping part 2 on one side of the clamping part 1. One end of the slide rod 29 is fixed in the slide 28 and swings back and forth in the slide 28 under the action of external force. The other end of the slide rod 29 is movably connected to the clamping part 1 through a shaft.

[0067] During use, when it is necessary to slide a card 2 at a certain appropriate position in the clamping part 1, rotate one end of the sliding rod 29 until the sliding rod 29 is clamped above the card 2 at the appropriate position, fix the card 2 at the appropriate position and the card outside it, and all the card 2 in the card 2 at the appropriate position can be extended upward or downward according to the first embodiment.

[0068] Example 5

[0069] like Figure 19 、 20 , which is different from Example 1, a rod body is provided in the clamping part 1, and the upper and lower ends of the rod body are respectively connected to an upper slide 31 and a lower slide 32, and the upper slide 31 and the lower slide 32 are clamped on the upper and lower sides of the clamping part 1.

[0070] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A wrench comprising a handle portion (6) and a clamping portion (1), characterized in that: The handle portion (6) is integrally connected with a baffle, and the baffle is clamped on the outside of the clamping portion (1). The clamping portion (1) is sequentially sleeved with a plurality of hollow clamping parts (2) from the inside to the outside, and at least one side of the clamping part (2) is provided with a plurality of hook bodies, and the hook bodies include an upper hook body (33) and a lower hook body (33-1). At least one side of the clamping part (2) is provided with a plurality of groove bodies (36) adapted to the hook bodies, and the hook bodies and the groove bodies (36) are on the same or different sides, and the hook bodies at different positions slide into or out of the groove bodies to achieve relative movement of adjacent clamping parts (2). The clamping part (1) is provided with a ratchet rotor (5) around the outermost clamping part (2), and the handle portion (6) is provided with a transmission member (7) at one end close to the clamping part (1) for use in conjunction with the ratchet rotor (5) to achieve forward and reverse rotation of the ratchet rotor (5); A cavity (17) is provided on one side of the upper end of the clamping portion (1), and a through hole (18) communicating with all the clamping members (2) is also horizontally provided in the clamping portion (1). A plurality of fasteners (19) are provided in the cavity (17), and the fasteners (19) include a protruding end (20), one end of the protruding end (20) is connected to a second spring (21), a protrusion (22) is provided on the upper end of the protruding end (20), and the protrusion (22) is adapted for use with the through hole (18), and the end of the second spring (21) away from the protruding end (20) is fixed in the cavity (17); The clamping portion (1) is provided with a cavity (25) that passes through all the clamping parts (2), a screw (26) is placed through the cavity (25), and nuts are threadedly connected at both ends of the screw (26), and the nut is located outside the largest clamping part (2) of the clamping portion (1); A slideway (28) and a slide rod (29) are provided in the clamping part (1), the slideway (28) passes through the clamping part (2) on one side of the clamping part (1), one end of the slide rod (29) is slidably connected to the slideway (28), and the other end of the slide rod (29) is movably connected to the clamping part (1) through a shaft; A rod body is provided in the clamping part (1), and the rod body is located outside all the clamping parts (2). The upper and lower ends of the rod body are movably connected with an upper slide (31) and a lower slide (32), respectively. The upper slide (31) and the lower slide (32) are clamped at the upper and lower ends of the clamping part (1).

2. The wrench according to claim 1, wherein The transmission member (7) includes a column (8), a knob (9) is provided at the top of the column (8), a first pawl (10) and a second pawl (11) are cross-sheathed at the bottom of the column (8), a fixed rod (12) is connected to one side of the column (8), and a rotating rod (13) is connected to the other side of the column (8), a fixed groove (14) is provided on the side of the handle (6) close to the transmission member (7), the fixed rod (12) is located in the fixed groove (14), and moves back and forth in the fixed groove (14) under the action of external force, the rotating rod (13) is located between the first pawl (10) and the second pawl (11), and the ratchet rotor (5) is engaged with the first pawl (10) or the second pawl (11).

3. The wrench according to claim 1, wherein: The outer shape of the clamping portion (1) is circular, and the cross section of the clamping piece (2) is a regular hexagon.

4. The wrench according to claim 1, wherein: The connecting line of the upper hook body (33) and the lower hook body (33-1) is perpendicular to the horizontal plane, and the position of the groove body (36) corresponds to that of the upper hook body (33) or the lower hook body (33-1).

5. The wrench according to claim 1, wherein: The hook body further comprises a concave body (34), and the concave body (34) is adapted for use with the groove body (36).

6. The wrench according to claim 5, wherein: The connecting line between the concave body (34), the upper hook body (33) and the lower hook body (33-1) is perpendicular to the horizontal plane; the concave body (34) is located between the upper hook body (33) and the lower hook body (33-1); and the positions of the groove body (36) and the concave body (34) correspond to each other.

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