wrench

Abstract

This application provides a wrench, including a body, a clamping assembly, and a stopping assembly. The body includes a first plate, a second plate parallel to the first plate, and a side portion connecting the first and second plates. The first plate, the second plate, and the side portion define a space. The first plate has a first through hole at its end away from the side portion, and the second plate has a second through hole at its end away from the side portion. The axes of the first and second through holes are a straight line and perpendicular to the plane containing the first plate. Both the first and second through holes communicate with the space. The clamping assembly is disposed through the first and second through holes and includes a drive mechanism and two clamps. The drive mechanism connects the two clamps and is configured to drive the two clamps to rotate about the axis of the first through hole in a first direction, and to drive the two clamps to move closer to or further away from each other. The stopping assembly is partially disposed in the space and abuts against the clamping assembly, configured to prevent the two clamps from rotating about the axis of the first through hole in a second direction, wherein the second direction is opposite to the first direction.

Description

Technical Field

[0001] This application relates to the field of hand tool technology, and in particular to a wrench. Background Technology

[0002] Wrenches are indispensable tools in mechanical assembly and maintenance, used to apply torque to bolts and nuts to ensure tight connections and the safe and reliable operation of equipment. In various industrial settings, workers often need to frequently change wrench heads or sets of wrenches to accommodate bolts and nuts of different sizes. However, existing fixed-size wrench heads or clamping structures have fixed and non-adjustable clamping openings or jaw spacing, which greatly limits the applicability of a single wrench. Adjustable wrenches have emerged to address this issue; however, some adjustable wrench structures have complex adjustment mechanisms, are not convenient to operate, or have difficulty guaranteeing clamping stability and alignment accuracy after adjustment, affecting the accuracy and reliability of torque transmission.

[0003] The above description of "prior art" provides background information only and does not acknowledge that the above description of "prior art" discloses the subject matter of this application. It does not constitute prior art of this application, and no description of the above "prior art" should be considered part of this application. Utility Model Content

[0004] The main objective of this application is to provide a wrench with a simple adjustment mechanism, convenient operation, high stability and centering accuracy after adjustment, and adjustable clamping size.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] According to one aspect of this application, a wrench is provided, including a body, a clamping assembly, and a stopping assembly. The body includes a first plate, a second plate parallel to the first plate, and a side portion connecting the first plate and the second plate. The first plate, the second plate, and the side portion define a space. The end of the first plate away from the side portion has a first through hole, and the end of the second plate away from the side portion has a second through hole. The axes of the first through hole and the second through hole are collinear and perpendicular to the plane containing the first plate. Both the first through hole and the second through hole communicate with the space.

[0007] A clamping assembly is disposed through the first through hole and the second through hole. The clamping assembly includes a driving mechanism and two clamps. The driving mechanism connects the two clamps and is configured to drive the two clamps to rotate about the axis of the first through hole in a first direction, thereby moving the two clamps closer to or further apart. A stop assembly is partially disposed in the space and abuts against the clamping assembly, configured to prevent the two clamps from rotating about the axis of the first through hole in a second direction, wherein the second direction is opposite to the first direction.

[0008] According to one embodiment of this application, the driving mechanism includes a sleeve and a bidirectional adjustment structure. The sleeve passes through the first through hole and the second through hole and is rotatable about the axis of the first through hole. The bidirectional adjustment structure is disposed inside the sleeve and is rotatable about its own axis. The bidirectional adjustment structure is connected to the two clamps respectively through two adjustment blocks. The sleeve drives the two clamps to rotate through the bidirectional adjustment structure.

[0009] According to one embodiment of this application, the bidirectional adjustment structure includes an adjustment knob and a bidirectional screw. The adjustment knob is fixed to the bidirectional screw and can drive the bidirectional screw to rotate around its own axis. The bidirectional screw can drive the two adjustment blocks to move, so that the two clamps move closer or further apart.

[0010] According to one embodiment of this application, an adjustment knob is disposed in the middle of the bidirectional screw, and two adjustment blocks are respectively disposed on both sides of the adjustment knob and threadedly connected to the bidirectional screw.

[0011] According to one embodiment of this application, the outer periphery of the sleeve is provided with spaced-apart toothed blocks, and the stop assembly abuts against the outer periphery of the sleeve between two adjacent toothed blocks to prevent the two clamps from rotating in a second direction around the axis of the first through hole.

[0012] According to one embodiment of this application, the stop assembly includes a stop block disposed in the space, the stop block abutting against the clamping assembly to prevent the two clamps from rotating in a second direction about the axis of the first through hole.

[0013] According to one embodiment of this application, the stop assembly further includes a thrust structure that applies a thrust to the stop block such that the stop block always abuts against the clamping assembly.

[0014] According to one embodiment of this application, the thrust structure includes an elastic member and a push block, the push block abutting between the elastic member and the stop block, the side having a blind hole, and the elastic member disposed in the blind hole.

[0015] According to one embodiment of this application, the clamping assembly further includes a guide rod, with the two clamps respectively passing through both ends of the guide rod.

[0016] According to one embodiment of this application, the clamping surface of the chuck is a concave surface.

[0017] According to one embodiment of this application, the wrench further includes a handle attached to the side of the body.

[0018] As can be seen from the above technical solution, the advantages and positive effects of the wrench proposed in this application are as follows:

[0019] The wrench proposed in this application includes a body, a clamping assembly, and a stop assembly, with both the clamping assembly and the stop assembly disposed within the body. The clamping assembly includes a drive mechanism and two collets. The drive mechanism can drive the two collets to rotate around the axis of the first through hole in a first direction, and drive the two collets to move closer or further apart. This allows for adjustable distance between the two collets, enabling the wrench to clamp bolts, nuts, etc., of various sizes. The stop assembly abuts against the clamping assembly, preventing the clamping assembly from causing the two collets to rotate arbitrarily, ensuring the stability and alignment accuracy of the clamping after adjustment.

[0020] The wrench proposed in this application comprises a first plate, a second plate parallel to the first plate, and a side portion connecting the first and second plates. The first plate, the second plate, and the side portion define a space. The end of the first plate away from the side portion has a first through hole, and the end of the second plate away from the side portion has a second through hole. The axes of the first and second through holes are on a straight line and perpendicular to the plane containing the first plate. Both the first and second through holes communicate with the space. The structure is simple and the operation is convenient. Attached Figure Description

[0021] The various objectives, features, and advantages of this application will become more apparent from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. The drawings are merely illustrative illustrations of this application and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:

[0022] Figure 1 This is a structural schematic diagram of the wrench of this application.

[0023] Figure 2 yes Figure 1 A schematic diagram from another angle.

[0024] Figure 3 yes Figure 1 A cross-sectional view of a wrench.

[0025] Figure 4 yes Figure 1 A cross-sectional view of the wrench from another angle.

[0026] Figure 5 This is a schematic diagram of the structure of the wrench body of this application.

[0027] Figure 6 This is a schematic diagram of the socket of the wrench according to this application.

[0028] Figure 7 This is a schematic diagram of the clamping assembly (without the socket) of the wrench of this application.

[0029] Figure 8 This is a structural diagram of the wrench clamp and guide rod of this application.

[0030] Figure 9 This is a schematic diagram of the stop assembly of the wrench in this application.

[0031] Figure 10 yes Figure 9 A schematic diagram of the stop block in the diagram.

[0032] The labels on the attached diagram are explained as follows: 1 - Wrench;

[0033] 10-Ontology;

[0034] 20 - Clamping assembly; 30 - Stop assembly; 40 - Handle;

[0035] 101 - First board;

[0036] 102 - Second board;

[0037] 103-Side;

[0038] 104-Space;

[0039] 105 - First through hole; 106 - Second through hole; 107 - Blind hole;

[0040] 201-Drive mechanism; 202-Chuck;

[0041] 203 - Guide rod;

[0042] 301-Stop Block;

[0043] 302 - Thrust structure; 2011 - Sleeve;

[0044] 2012 - Bidirectional adjustment structure; 2013 - Adjustment block; 2021 - Clamping surface; 3011 - First abutment arm; 3012 - Second abutment arm; 3013 - Mounting hole; 3014 - Abutment surface; 3021 - Elastic element; 3022 - Push block;

[0045] 20121 - Adjustment knob; 20122 - Two-way screw;

[0046] 20111-periphery;

[0047] 20112-Card tooth block;

[0048] 20113 - Screw hole;

[0049] 20114-Knob Slot. Detailed Implementation

[0050] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0051] In the following description of various exemplary embodiments of this application, reference is made to the accompanying drawings, which form part of this application, and which illustrate by way of example different exemplary structures, systems, and steps that can implement various aspects of this application. It should be understood that other specific solutions to components, structures, exemplary devices, systems, and steps may be used, and structural and functional modifications may be made without departing from the scope of this application. Furthermore, while the terms “above,” “between,” “within,” etc., may be used in this specification to describe different exemplary features and elements of this application, these terms are used herein only for convenience, such as the orientation according to the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of this application.

[0052] It is understood that the terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0053] As used herein, “about,” “approximately,” “essentially,” or “substantially” includes the value and the average value within an acceptable range of deviations from a particular value as determined by one of ordinary skill in the art, taking into account the measurement under discussion and a particular number of errors associated with the measurement (i.e., limitations of the measurement system). For example, “about” may mean within one or more standard deviations of the value, or, for example, within ±30%, ±20%, ±15%, ±10%, ±5%. Furthermore, the use of “about,” “approximately,” “essentially,” or “substantially” herein may be chosen to select a more acceptable range of deviations or standard deviations depending on the nature of the measurement, the cutting nature, or other properties, and may not require a single standard deviation to apply to all properties.

[0054] Furthermore, relative terms such as “down” or “bottom” and “up” or “top” may be used herein to describe the relationship between one element and another, as illustrated in the figures. It should be understood that relative terms are intended to include different orientations of the device beyond those shown in the figures. For example, if a device in one figure is flipped, an element described as being “down” to another element will be oriented “up” to that element. Thus, the exemplary term “down” can include both “down” and “up” orientations, depending on the specific orientation of the figure. Similarly, if a device in one figure is flipped, an element described as being “below” or “under” another element will be oriented “above” that element. Thus, the exemplary terms “above” or “below” can include both “up” and “down” orientations.

[0055] This document describes exemplary embodiments with reference to cross-sectional views, which are schematic diagrams of idealized embodiments. Therefore, variations in the shape of the illustrations can be expected as a result of, for example, manufacturing techniques and / or tolerances. Consequently, the embodiments described herein should not be construed as limited to the specific shapes of the regions shown herein, but rather include, for example, shape deviations caused by manufacturing processes. For example, regions shown or described as flat may generally have rough and / or non-linear characteristics. Furthermore, the acute angles shown may be rounded. Therefore, the regions shown in the figures are schematic in nature, and their shapes are not intended to show the precise shapes of the regions, nor are they intended to limit the scope of the claims.

[0056] See Figures 1 to 5 The example shown is a wrench 1 of this application, including a body 10, a clamping assembly 20, a stop assembly 30, and a handle 40.

[0057] The body 10 includes a first plate 101, a second plate 102 parallel to the first plate 101, and a side portion 103 connecting the first plate 101 and the second plate 102. The first plate 101, the second plate 102, and the side portion 103 define a space 104. The portion of the side portion 103 connecting the first plate 101 and the second plate 102 is generally plate-shaped, connecting the ends of the first plate 101 and the second plate 102. A cylindrical portion is provided on this plate-shaped portion, and the plate-shaped portion and the cylindrical portion together constitute the side portion 103. The plate-shaped portion and the cylindrical portion are integrally formed.

[0058] The first plate 101 has a first through hole 105 at its end away from the side portion 103, and the second plate 102 has a second through hole 106 at its end away from the side portion 103. The axes of the first through hole 105 and the second through hole 106 are on a straight line and perpendicular to the plane containing the first plate 101. Both the first through hole 105 and the second through hole 106 communicate with the space 104. That is, the orthographic projections of the first through hole 105 and the second through hole 106 on a plane parallel to the first plate 101 and the second plate 102 overlap. The side portion 103 has a blind hole 107 that communicates with the space 104. The blind hole 107 extends from the plate-shaped portion of the side portion 103 to the cylindrical portion of the side portion 103.

[0059] The handle 40 is connected to the side 103 of the main body 10. The handle 40 has a flat structure, making it easy for workers to grip and apply force. A hole is provided at the end of the handle 40 for easy hanging and storage. In this embodiment, the main body 10 and the handle 40 are integrally formed. In some other embodiments, the main body 10 and the handle 40 can also be formed separately and then connected together.

[0060] The clamping assembly 20 is configured to pass through the first through hole 105 and the second through hole 106. The clamping assembly 20 includes a drive mechanism 201 and two chucks 202. The drive mechanism 201 passes through the first through hole 105 and the second through hole 106 and is disposed in the space 104 of the body 10. The drive mechanism 201 can rotate around the axis of the first through hole 105, so that both the handle 40 and the body 10 can rotate relative to the drive mechanism 201, allowing the wrench 1 to adapt to different spatial usage scenarios.

[0061] Two clamps 202 are disposed on one side of the second plate 102 facing away from the space 104. A drive mechanism 201 is connected to the two clamps 202. The drive mechanism 201 can drive the two clamps 202 to rotate in a first direction around the axis of the first through hole 105. The drive mechanism 201 can also drive the two clamps 202 to move, so that the two clamps 202 move closer to each other or further away from each other.

[0062] The stop assembly 30 is partially disposed within the space 104 and partially protrudes beyond the space 104. The stop assembly 30 abuts against the clamping assembly 20 and prevents the two clamps 202 from rotating in a second direction about the axis of the first through hole 105, where the second direction is opposite to the first direction. That is, the clamping assembly 20 can only rotate in the first direction, such as clockwise or counterclockwise. If the first direction is clockwise, the second direction is counterclockwise; if the first direction is counterclockwise, the second direction is clockwise. In short, the clamping assembly 20 can only rotate in one direction within the first through hole 105 and the second through hole 106.

[0063] The wrench 1 of this application includes a body 10, a clamping assembly 20, and a stop assembly 30, both of which are located on the body 10. It has a simple structure, is easy to operate, and can adapt to various spatial scenarios. The clamping assembly 20 includes a drive mechanism 201 and two clamps 202. The drive mechanism 201 can drive the two clamps 202 to rotate around the axis of the first through hole 105 in a first direction, and drive the two clamps 202 to move closer or further apart. This allows the distance between the two clamps 202 to be adjustable, enabling the wrench 1 to clamp bolts, nuts, etc., of various sizes. The stop assembly 30 abuts against the clamping assembly 20, preventing the clamping assembly 20 from causing the two clamps 202 to rotate arbitrarily, ensuring the stability and centering accuracy of the clamping after adjustment.

[0064] In this embodiment, see Figure 3 and Figure 4 The driving mechanism 201 includes a sleeve 2011 and a bidirectional adjustment structure 2012. The sleeve 2011 passes through a first through hole 105 and a second through hole 106 and can rotate around the axis of the first through hole 105. The bidirectional adjustment structure 2012 is disposed inside the sleeve 2011 and can rotate around its own axis. The bidirectional adjustment structure 2012 is connected to two clamps 202 respectively through two adjusting blocks 2013. The sleeve 2011 drives the two clamps 202 to rotate through the bidirectional adjustment structure 2012. The bidirectional adjustment structure 2012 can adjust the distance between the two clamps 202, allowing the wrench 1 to be used for tightening bolts and nuts of different sizes. The sleeve 2011 drives the two clamps 202 to rotate through the bidirectional adjustment structure 2012, allowing the two clamps 202 to rotate 360° simultaneously, which can adapt to various spatial scenarios.

[0065] In this embodiment, the bidirectional adjustment structure 2012 includes an adjustment knob 20121 and a bidirectional screw 20122. The adjustment knob 20121 is mainly used by the operator to adjust the distance between the two clamps 202. The adjustment knob 20121 is fixed to the bidirectional screw 20122 and can drive the bidirectional screw 20122 to rotate around its own axis. When the bidirectional screw 20122 rotates around its own axis, it can drive the two adjustment blocks 2013 threadedly connected to the bidirectional screw 20122 to move closer to or further away from each other, thereby moving the two clamps 202 closer to or further away from each other. The adjustment block 2013 and the corresponding clamp 202 can be integrally formed.

[0066] In this embodiment, the adjusting knob 20121 is located in the middle of the bidirectional screw 20122, and two adjusting blocks 2013 are respectively located on both sides of the adjusting knob 20121 and are threadedly connected to the bidirectional screw 20122. This makes the operation easier for the operator and allows the two adjusting blocks 2013 to move simultaneously.

[0067] In this embodiment, see Figures 1 to 4 as well as Figure 6 The sleeve 2011 has spaced-apart toothed blocks 20112 on its outer periphery. The stop assembly 30 abuts against the outer periphery of the sleeve 20111 between two adjacent toothed blocks 20112 to prevent the two clamps 202 from rotating in the second direction around the axis of the first through hole 105. The toothed blocks 20112 are spaced in a full circle around the outer periphery of the sleeve 2011. The sleeve 2011 has a mounting cavity for mounting the bidirectional adjustment structure 2012. The mounting cavity has a knob groove 20114 and a screw hole 20113. The knob groove 20114 is used to install the adjustment knob 20121, and the screw hole 20113 is used to install the bidirectional screw 20122.

[0068] In this embodiment, the clamping assembly 20 further includes a guide rod 203, see [link / reference] Figure 7 Two clamps 202 are respectively inserted at both ends of the guide rod 203. The guide rod 203 ensures the stability of the relative movement of the two clamps 202 and the relative positional accuracy between the two clamps 202, thereby improving the stability and centering accuracy of the wrench 1 after adjustment.

[0069] In this embodiment, the clamping surface 2021 of the chuck 202 is a concave surface. The concave surface can increase the stability of clamping. Figure 8 The shape of the clamping surfaces 2021 of the two clamps 202 is shown, and the included angle between the clamping surfaces 2021 of each clamp 202 is 120°.

[0070] In this embodiment, see Figure 9The stop assembly 30 includes a stop block 301, which is disposed in the space 104. The stop block 301 abuts against the clamping assembly 20 to prevent the two clamps 202 from rotating in a second direction around the axis of the first through hole 105. The stop assembly 30 prevents the two clamps 202 from rotating in a second direction around the axis of the first through hole 105, ensuring the overall directional stability and consistency of the two clamps 202. This allows the wrench 1 to adapt to different usage scenarios in the space 104, maintain clamping stability after adjustment, and ensure clamping accuracy.

[0071] In this embodiment, the stop assembly 30 further includes a thrust structure 302, which applies a thrust to the stop block 301, causing the stop block 301 to always abut against the clamping assembly 20. The thrust structure 302 can apply a thrust to the stop block 301, causing the stop block 301 to always abut against the outer periphery 20111 of the sleeve 2011 of the clamping assembly 20.

[0072] In this embodiment, the thrust structure 302 includes an elastic element 3021 and a push block 3022. The push block 3022 abuts against the elastic element 3021 and the stop block 301. The elastic element 3021 is disposed in the blind hole 107. The elastic element 3021 can be a spring, which is disposed at one end of the push block 3022. The other end of the push block 3022 is tapered, and the tapered part abuts against the stop block 301.

[0073] In this embodiment, see Figure 10 The stop block 301 includes a first abutment arm 3011, a second abutment arm 3012, a mounting hole 3013, and an abutment surface 3014. In this embodiment, the first abutment arm 3011 abuts against the sleeve 2011. (Combined with...) Figures 1 to 4 The mounting hole 3013 is used to install the stop assembly 30 onto the wrench 1 body 10. It can be installed by bolts. The stop block 301 can rotate around the axis of the mounting hole 3013 in the space 104 of the body 10, but the rotation range is small.

[0074] The wrench 1 of this application also has a second embodiment, wherein the wrench 1 of the second embodiment is related to... Figures 1 to 10 Compared to the wrench 1 of the second embodiment, it has a substantially the same structure in its basic construction. Therefore, in the following description of the wrench 1 of this second embodiment, the description will not be repeated. Figures 1 to 10 The structure has already been described in the implementation method. Additionally, regarding... Figures 1 to 10 The same reference numerals are used for structures with the same structure as the wrench 1 described in the embodiments. Therefore, in the following description of this embodiment, the structure of the wrench 1 is mainly described. Figures 1 to 10 The differences between the wrench 1 in the second embodiment will be explained. In this second embodiment, the wrench 1 mainly uses the second arm 3012 of the stop block 301 to abut against the outer periphery 20111 of the sleeve 2011.

[0075] The above is a detailed description of several exemplary embodiments of the wrench 1 proposed in this application. The following will describe in detail the usage process of the wrench 1 proposed in this application.

[0076] Combined with appendix Figures 1 to 10 The process of using the wrench 1 proposed in this application is as follows:

[0077] First, rotate the adjusting knob 20121 to move the two clamps 202 away from each other. Then, place the wrench 1 around the bolt or nut that needs to be tightened. Depending on the installation space of the bolt or nut, rotate the handle 40 to make the sleeve 2011 drive the two clamps 202 to rotate. At this time, the two clamps 202 can only rotate in the first direction.

[0078] After rotating to the appropriate position, rotate the adjusting knob 20121 in the opposite direction to bring the two clamps 202 closer together and clamp the bolt or nut that needs to be tightened. Then, turn the handle 40 to rotate in the second direction. At this time, due to the action of the stop component 30, the sleeve 2011 cannot drive the two clamps 202 to rotate in the second direction. This allows the wrench 1 to drive the bolt or nut to rotate as a whole, thereby achieving the tightening of the bolt or nut.

[0079] As can be seen from the above usage process of the wrench 1, the wrench 1 of this application includes a body 10, a clamping assembly 20, and a stop assembly 30, both of which are disposed on the body 10. The clamping assembly 20 includes a drive mechanism 201 and two collets 202. The drive mechanism 201 can drive the two collets 202 to rotate around the axis of the first through hole 105 in a first direction, and drive the two collets 202 to move closer or further apart. This achieves adjustable distance between the two collets 202, allowing the wrench 1 to clamp bolts, nuts, etc. of various sizes. The stop assembly 30 abuts against the clamping assembly 20, preventing the clamping assembly 20 from driving the two collets 202 to rotate arbitrarily, ensuring the stability and centering accuracy of the clamping after adjustment.

[0080] In summary, the wrench 1 proposed in this application includes a body 10, a clamping assembly 20, and a stop assembly 30. The body 10 includes a first plate 101, a second plate 102 parallel to the first plate 101, and a side portion 103 connecting the first plate 101 and the second plate 102. The first plate 101, the second plate 102, and the side portion 103 define a space 104. The end of the first plate 101 away from the side portion 103 has a first through hole 105, and the end of the second plate 102 away from the side portion 103 has a second through hole 106. The axes of the first through hole 105 and the second through hole 106 are on a straight line and perpendicular to the plane where the first plate 101 is located. Both the first through hole 105 and the second through hole 106 communicate with the space 104. The clamping assembly 20 is disposed through the first through hole 105 and the second through hole 106. The clamping assembly 20 includes a drive mechanism 201 and two clamps 202. The drive mechanism 201 is connected to the two clamps 202 and is configured to drive the two clamps 202 to rotate around the axis of the first through hole 105 in a first direction, and to drive the two clamps 202 to move, so that the two clamps 202 move closer to or further away from each other. The stop assembly 30 is partially disposed in the space 104 and abuts against the clamping assembly 20. It is configured to prevent the two clamps 202 from rotating around the axis of the first through hole 105 in a second direction, wherein the second direction is opposite to the first direction.

[0081] The wrench 1 of this application can clamp bolts, nuts, etc. of various sizes. The stop component 30 abuts against the clamping component 20 to prevent the clamping component 20 from causing the two chucks 202 to rotate arbitrarily, ensuring the stability and centering accuracy of the clamping after adjustment. It also has a simple structure and is easy to operate.

[0082] It is understood that the various embodiments / implementations provided in this application can be combined with each other without creating contradictions, and will not be described one by one here.

[0083] In the above exemplary embodiments, the wrench proposed in this application is illustrated using bolts and nuts as an example. Those skilled in the art will readily understand that various modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments to apply the relevant designs of this application to other types of devices requiring tightening; these changes are still within the scope of the principles of the wrench proposed in this application.

[0084] It should be noted that the wrenches shown in the accompanying drawings and described in this specification are merely a few examples among the many wrenches capable of employing the principles of this application. It should be clearly understood that the principles of this application are by no means limited to any detail or component of the wrenches shown in the accompanying drawings or described in this specification.

[0085] In the embodiments, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments according to the specific circumstances.

[0086] The foregoing has described and / or illustrated exemplary embodiments of the wrench proposed in this application in detail. However, the embodiments of this application are not limited to the specific embodiments described herein; rather, components and / or steps of each embodiment may be used independently and separately from other components and / or steps described herein. Each component and / or step of one embodiment may also be used in combination with other components and / or steps of other embodiments. In describing the elements / components / etc. described and / or illustrated herein, the terms "a," "an," and "the above" are used to indicate the presence of one or more elements / components / etc.

[0087] The embodiments of this application are not limited to the specific embodiments described herein. Rather, components of each embodiment can be used independently and separately from other components described herein. Each component of one embodiment can also be used in combination with other components of other embodiments. In the description of this specification, the terms "one embodiment," "some embodiments," "other embodiments," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the application embodiments. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0088] The above are merely preferred embodiments of the present application and are not intended to limit the embodiments of the present application. For those skilled in the art, the embodiments of the present application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of the present application should be included within the protection scope of the embodiments of the present application.

Claims

1. A wrench characterized by, include: The body includes a first plate, a second plate parallel to the first plate, and a side portion connecting the first plate and the second plate. The first plate, the second plate, and the side portion define a space. The end of the first plate away from the side portion has a first through hole, and the end of the second plate away from the side portion has a second through hole. The axes of the first through hole and the second through hole are on a straight line and perpendicular to the plane where the first plate is located. Both the first through hole and the second through hole communicate with the space. A clamping assembly is provided through the first through hole and the second through hole. The clamping assembly includes a driving mechanism and two clamps. The driving mechanism is connected to the two clamps and is configured to drive the two clamps to rotate around the axis of the first through hole in a first direction and drive the two clamps to move so that the two clamps move closer to or further away from each other. A stop assembly, partially disposed in the space and abutting against the clamping assembly, is configured to prevent the two clamps from rotating in a second direction about the axis of the first through hole, wherein the second direction is opposite to the first direction.

2. The wrench of claim 1, wherein The driving mechanism includes a sleeve and a bidirectional adjustment structure. The sleeve passes through the first through hole and the second through hole and can rotate around the axis of the first through hole. The bidirectional adjustment structure is disposed inside the sleeve and can rotate around its own axis. The bidirectional adjustment structure is connected to the two clamps respectively through two adjustment blocks. The sleeve drives the two clamps to rotate through the bidirectional adjustment structure.

3. The wrench as described in claim 2, characterized in that, The bidirectional adjustment structure includes an adjustment knob and a bidirectional screw. The adjustment knob is fixed to the bidirectional screw and can drive the bidirectional screw to rotate around its own axis. The bidirectional screw can drive the two adjustment blocks to move, so that the two clamps can move closer or further apart.

4. The wrench as described in claim 3, characterized in that, The adjustment knob is located in the middle of the bidirectional screw, and the two adjustment blocks are respectively located on both sides of the adjustment knob and are threadedly connected to the bidirectional screw.

5. The wrench as described in claim 2, characterized in that, The sleeve is provided with spaced-apart toothed blocks on its outer periphery. The stop assembly abuts against the outer periphery of the sleeve between two adjacent toothed blocks to prevent the two clamps from rotating in the second direction around the axis of the first through hole.

6. The wrench as described in claim 1, characterized in that, The stop assembly includes a stop block disposed in the space, the stop block abutting against the clamping assembly to prevent the two clamps from rotating in a second direction about the axis of the first through hole.

7. The wrench as described in claim 6, characterized in that, The stop assembly further includes a thrust structure that applies a thrust to the stop block, such that the stop block always abuts against the clamping assembly.

8. The wrench as described in claim 7, characterized in that, The thrust structure includes an elastic element and a push block, the push block abutting between the elastic element and the stop block, the side portion having a blind hole, and the elastic element disposed in the blind hole.

9. The wrench as described in claim 1, characterized in that, The clamping assembly also includes a guide rod, and the two clamps are respectively inserted through the two ends of the guide rod.

10. The wrench as claimed in claim 1, characterized in that, The clamping surface of the chuck is concave.

11. The wrench as claimed in claim 1, characterized in that, It also includes a handle, which is attached to the side of the body.

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