阅读说明：本技术 一种活动扳手 (Adjustable spanner ) 是由 黄智斌 冯求熙 李光军 吴林 廖坤霖 宋学博 谢建平 吴烈 陈克胜 高云峰 于 2021-07-14 设计创作，主要内容包括：本申请实施例属于五金工具领域,涉及一种活动扳手。该活动扳手包括：固定件、活动件、调节件和手柄；活动件活动安装在固定件上,与固定件配合形成夹持开口；调节件转动设于固定件上,用于调节活动件与固定件的相对位置,以改变夹持开口的宽度,且调节件沿转动中心线方向相对所述固定件活动设置；手柄用于带动固定件和活动件转动,手柄包括组装部和止挡部,组装部转动连接于固定件,止挡部可分离连接于固定件。本申请提供的技术方案能够在调整活动扳手的位置的过程中不需要重新调节夹持开口的宽度,减少了操作步骤,节约了时间。(The embodiment of the application belongs to the field of hardware tools and relates to an adjustable wrench. This monkey wrench includes: the device comprises a fixed piece, a movable piece, an adjusting piece and a handle; the movable part is movably arranged on the fixed part and is matched with the fixed part to form a clamping opening; the adjusting piece is rotatably arranged on the fixed piece and used for adjusting the relative position of the movable piece and the fixed piece so as to change the width of the clamping opening, and the adjusting piece is movably arranged relative to the fixed piece along the direction of a rotation center line; the handle is used for driving the fixed piece and the movable piece to rotate, the handle comprises an assembling portion and a stopping portion, the assembling portion is rotatably connected to the fixed piece, and the stopping portion is detachably connected to the fixed piece. The application provides a technical scheme can need not readjust centre gripping open-ended width at the in-process of adjustment adjustable spanner's position, has reduced the operating procedure, has practiced thrift the time.)

1. An adjustable wrench, comprising:

a fixing member;

the movable piece is movably arranged on the fixed piece and is matched with the fixed piece to form a clamping opening;

the adjusting piece is rotatably arranged on the fixed piece and used for adjusting the relative position of the movable piece and the fixed piece so as to change the width of the clamping opening, and the adjusting piece is movably arranged relative to the fixed piece along the direction of a rotation center line;

the handle is used for driving the fixed piece and the movable piece to rotate, the handle comprises an assembling part and a stopping part, the assembling part is rotatably connected to the fixed piece, and the stopping part is detachably connected to the fixed piece;

in the process that the handle rotates along the first direction, the stopping part is abutted to the fixed part and limits the adjusting part in the direction of a rotation center line, so that the fixed part, the movable part and a twisted object form hard contact; and in the process that the handle rotates along the second direction, the stopping part is separated from the fixed part, and the limiting of the adjusting part is released, so that the movable part and the twisted object are released from a hard contact state.

2. The adjustable wrench according to claim 1, wherein the adjustment member is a movable worm movably mounted on the fixed member, the movable worm is capable of rotating around a rotation center line relative to the fixed member under an external force, a tooth portion is formed at one end of the movable member, the tooth portion of the movable member is engaged with a thread on the movable worm, so that when the movable worm rotates around the rotation center line, the movable member is capable of moving relative to the fixed member under the driving of the movable worm, so as to adjust the width of a clamping opening formed by the movable member and the fixed member when the movable member and the fixed member are in hard contact with a twisted object.

3. The adjustable wrench according to claim 1, wherein the movable member further includes an elastic member mounted on the fixed member, the elastic member being disposed between the fixed member and the adjustment member to provide the adjustment member with an elastic force in a direction of a center line of rotation.

4. The adjustable wrench according to claim 3, wherein the adjusting member is formed with an outwardly extending positioning protrusion adjacent an end of the resilient member, the resilient member being fitted over the positioning protrusion.

5. The adjustable wrench according to claim 3, wherein the resilient member includes a first resilient member and a second resilient member, the first resilient member and the second resilient member being mounted to the fixed member, the first resilient member being disposed between the first end of the adjustment member and the fixed member, the second resilient member being disposed between the second end of the adjustment member and the fixed member.

6. The adjustable wrench according to any one of claims 1 to 5, wherein a limiting protrusion is formed on the fixing member, the limiting protrusion protrudes from an outer side surface of the fixing member, the limiting protrusion is disposed on a moving path of the assembling portion rotating relative to the fixing member, the limiting protrusion is used for limiting a rotating angle of the handle relative to the fixing member, when the handle rotates to a predetermined angle relative to the fixing member, the limiting protrusion abuts against the assembling portion, and the handle can drive the fixing member to rotate together.

7. The adjustable wrench according to any one of claims 1-5, wherein the handle includes a connecting handle and a folding handle, a first end of the connecting handle is pivotally connected to the fixed member, a stop is formed on the first end of the connecting handle, a second end of the connecting handle is pivotally connected to the folding handle, the handle is capable of rotating the fixed member and the movable member in a first plane of rotation under the application of an external force, and the folding handle is capable of rotating relative to the connecting handle in a second plane of rotation under the application of an external force, the second plane of rotation being perpendicular to the first plane of rotation.

8. The adjustable wrench according to claim 7, wherein the handle further includes a hinge member disposed between the connecting handle and the folding handle, one end of the hinge member being pivotally connected to the connecting handle and the other end of the hinge member being pivotally connected to the folding handle.

9. The adjustable wrench as claimed in claim 7, wherein the connecting handle includes a first rod and a second rod, a first end of the first rod is rotatably connected to the fixing member, the stopper is formed on the first end of the first rod, a second end of the first rod is rotatably connected to the first end of the second rod, and the second rod is capable of rotating relative to the first rod in a second rotation plane under an external force.

10. The adjustable wrench of claim 9, further comprising a pin, wherein the second end of the first rod is provided with a first pin hole, and the first end of the second rod is provided with a second pin hole, wherein the pin is capable of being simultaneously inserted into the first pin hole and the second pin hole when the second rod and the first rod are relatively rotated to align the first pin hole with the second pin hole, thereby locking the relative positions of the first rod and the second rod.

Technical Field

The application relates to the technical field of hardware tools, in particular to an adjustable wrench.

Background

A wrench is a common installation and removal tool that works on the principle of a lever to turn bolts, screws, nuts and other threaded fasteners to secure open or trepanned bolts or nuts. The adjustable wrench is a wrench with an opening width capable of being adjusted within a certain range, is a tool for fastening and loosening nuts and bolts of different specifications, and is widely used in daily life and production due to the fact that the adjustable wrench can be suitable for nuts or bolts of different specifications.

The common adjustable wrench is characterized in that the width of a clamping opening is adjusted in advance so that the width of the clamping opening is clamped on two side faces of a rotated article right, and then the rotated article is driven to rotate by the adjustable wrench. Because when rotating, the turned angle of the turned object is the same as the turned angle of the adjustable spanner, when the turned object needs to be turned for a plurality of turns, generally, after the adjustable spanner is turned to a certain angle, the opening of the adjustable spanner is adjusted to enable the adjustable spanner to loosen the adjustable spanner from the turned object, then the adjustable spanner is turned to enable the adjustable spanner to restore to the original position, the opening width of the adjustable spanner is adjusted again to enable the adjustable spanner to clamp the turned object again, then the turned object is turned to a certain angle, and in the turning process, the opening width of the adjustable spanner and the adjustable spanner are repeatedly adjusted for a plurality of times until the turned object rotates to the position.

Therefore, the opening width of the existing adjustable wrench needs to be adjusted for many times when the object is screwed, the using process is complicated, and the consumed time is long.

Disclosure of Invention

The technical problem that this application embodiment will solve is that current adjustable spanner process is loaded down with trivial details when twisting article, consumes time long.

In order to solve the above technical problem, an embodiment of the present application provides an adjustable wrench, which adopts the following technical scheme:

this monkey wrench includes:

a fixing member;

the movable piece is movably arranged on the fixed piece and is matched with the fixed piece to form a clamping opening;

the adjusting piece is rotatably arranged on the fixed piece and used for adjusting the relative position of the movable piece and the fixed piece so as to change the width of the clamping opening, and the adjusting piece is movably arranged relative to the fixed piece along the direction of a rotation center line;

the handle is used for driving the fixed piece and the movable piece to rotate, the handle comprises an assembling part and a stopping part, the assembling part is rotatably connected to the fixed piece, and the stopping part is detachably connected to the fixed piece;

in the process that the handle rotates along the first direction, the stopping part is abutted to the fixed part and limits the adjusting part in the direction of a rotation center line, so that the fixed part, the movable part and a twisted object form hard contact; and in the process that the handle rotates along the second direction, the stopping part is separated from the fixed part, and the limiting of the adjusting part is released, so that the movable part and the twisted object are released from a hard contact state.

Furthermore, the adjusting member is a movable worm, the movable worm is movably mounted on the fixed member, the movable worm can rotate around a rotation center line relative to the fixed member under the action of an external force, a tooth part is formed at one end of the movable member, the tooth part of the movable member is meshed with a thread on the movable worm, so that when the movable worm rotates around the rotation center line, the movable member can move relative to the fixed member under the driving of the movable worm, and the width of a clamping opening formed by the movable member and the fixed member is adjusted when the movable member and the fixed member are in rigid contact with each other with a twisted object.

Furthermore, the activity still includes the elastic component, the elastic component is installed on the mounting, the elastic component set up in the mounting with between the regulating part, in order to the regulating part provides along the elasticity of rotation center line direction.

Furthermore, one end of the adjusting piece, which is close to the elastic piece, is provided with a positioning bulge extending outwards, and the elastic piece is sleeved on the positioning bulge.

Furthermore, the elastic part comprises a first elastic part and a second elastic part, the first elastic part and the second elastic part are both mounted on the fixing part, the first elastic part is arranged between the first end part of the adjusting part and the fixing part, and the second elastic part is arranged between the second end part of the adjusting part and the fixing part.

Furthermore, be formed with spacing arch on the mounting, spacing arch protrusion in the lateral surface of mounting, spacing arch sets up the equipment portion is relative on the mounting pivoted motion route, spacing arch is used for the restriction the handle is relative the turned angle of mounting, works as the handle is relative when the mounting rotates predetermined angle, spacing arch with the equipment portion offsets, the handle can drive the mounting rotates together.

Further, the handle comprises a connecting handle and a folding handle, a first end of the connecting handle is rotatably connected with the fixing piece, a stopping portion is formed at the first end of the connecting handle, a second end of the connecting handle is rotatably connected with the folding handle, the handle can drive the fixing piece and the moving piece to rotate in a first rotating plane under the action of external force, the folding handle can rotate relative to the connecting handle in a second rotating plane under the action of external force, and the second rotating plane is perpendicular to the first rotating plane.

Furthermore, the handle still includes the articulated elements, the articulated elements sets up connect the handle with between the folding handle, the one end of articulated elements with connect the handle and rotate and connect, the other end of articulated elements with folding handle rotates and connects.

Furthermore, connect the handle and include the first body of rod and the second body of rod, the first end of the first body of rod with the mounting rotates to be connected, backstop portion is formed on the first end of the first body of rod, the second end of the first body of rod with the first end of the second body of rod rotates to be connected, the second body of rod can be relative in the second rotation plane under the exogenic action the first body of rod rotates.

Furthermore, the adjustable spanner further comprises a bolt, a first bolt hole is formed in the second end portion of the first rod body, a second bolt hole is formed in the first end portion of the second rod body, and when the second rod body and the first rod body rotate relatively to the first bolt hole and the second bolt hole to be aligned, the bolt can be simultaneously inserted into the first bolt hole and the second bolt hole to lock the relative positions of the first rod body and the second rod body.

Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:

the adjustable wrench provided by the invention can control the fixed piece and the movable piece to form hard contact or non-hard contact with a to-be-twisted object through rotating the handle, can enable the fixed piece and the movable piece to output torque in only one direction to the to-be-twisted object, can separate the stop part of the handle from the fixed piece through rotating the handle when the adjustable wrench needs to be rotated to adjust the position of the adjustable wrench, thereby releasing the limit on the adjusting piece, enabling the fixed piece and the movable piece to form non-hard contact with the to-be-twisted object so as to stop the fixed piece and the movable piece from outputting torque to the to-be-twisted object, can realize continuous and multiple rotations of the to-be-twisted object in the same direction through rotating the handle back and forth within a certain range until the to-be-twisted object is twisted, and does not need to readjust the width of the clamping opening in the process of rotating the handle back and forth to adjust the position of the adjustable wrench, the operation steps are reduced, and the time consumed for screwing the screwed object is greatly saved.

Drawings

In order to illustrate the solution of the present application more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.

FIG. 1 is a schematic front view of a wrench according to an embodiment of the present invention;

FIG. 2 is an exploded view of the adjustable wrench of FIG. 1;

FIG. 3 is a schematic view showing a state in which the adjustable wrench shown in FIG. 1 clamps a hexagonal bolt;

FIG. 4 is a schematic view of the adjustable wrench of FIG. 1 in a state where a hexagonal bolt is screwed;

FIG. 5 is a schematic view of the stop of the handle of the adjustable wrench of FIG. 1 shown separated from the fastener;

FIG. 6 is a schematic view of the adjustable wrench of FIG. 1 showing a handle rotating the stationary member and the movable member;

FIG. 7 is a schematic view of the adjustable wrench shown in FIG. 1 with the first rod, the second rod and the foldable handle bent;

fig. 8 is a schematic view showing the monkey wrench shown in fig. 1 in a state where the folding handle is folded.

Reference numerals:

100. a fixing member; 110. a limiting bulge; 200. a movable member; 210. a tooth portion; 300. an adjustment member; 310. positioning the projection; 421. a first rod body; 4211. a stopper portion; 4212. an assembling part; 4213. a first pin hole; 422. a second rod body; 4221. a second pin hole; 430. a folding handle; 440. an articulation member; 500. a first elastic member; 600. a second elastic member; 700. a bolt; 800. a hexagon bolt.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1 to 8, the adjustable wrench includes a fixed member 100, a movable member 200, an adjustment member 300, and a handle. The moveable member 200 is movably mounted on the stationary member 100 and cooperates with the stationary member 100 to form a clamping opening. The adjusting member 300 is rotatably disposed on the fixed member 100 for adjusting the relative position of the movable member 200 and the fixed member 100 to change the width of the clamping opening, and the adjusting member 300 is movably disposed along the rotation center line direction relative to the fixed member 100. The handle is used for driving the fixing member 100 and the movable member 200 to rotate, the handle comprises an assembling portion 4212 and a stopping portion 4211, the assembling portion 4212 is rotatably connected to the fixing member 100, and the stopping portion 4211 is detachably connected to the fixing member 100.

During the rotation of the handle along the first direction, the stop portion 4211 abuts against the fixed member 100 and limits the adjusting member 300 in the direction of the rotation center line, so that the fixed member 100 and the movable member 200 are in hard contact with a rotated object; during the rotation of the handle in the second direction, the stop portion 4211 is separated from the fixed member 100, and the limit of the adjusting member 300 is released, so that the movable member 200 and the object to be twisted are released from the hard contact state.

It can be understood that the working principle of the adjustable wrench is as follows:

when the stopping portion 4211 abuts against the fixed member 100, the stopping portion 4211 limits the movement of the adjusting member 300 along the direction of the rotation center line, and a user can adjust the width of the clamping opening through the adjusting member 300, so that the width of the clamping opening is matched with the width of a rotated object (such as a bolt), and thus both the fixed plate lip on the fixed member 100 and the movable plate lip of the movable member 200 can abut against the outer side surface of the rotated object (such as a bolt).

When the object to be twisted needs to be rotated, the handle is rotated according to the first rotation direction (i.e. the direction in which the stopping portion 4211 is close to the fixed member 100), the stopping portion 4211 is always kept in abutment with the fixed member 100, the handle drives the fixed member 100 and the movable member 200 to rotate together, meanwhile, two side surfaces of the object to be twisted abut against the fixed member 100 and the movable member 200 respectively to form rigid contact, and the fixed member 100 and the movable member 200 are matched to transmit torque to the object to be twisted, so as to drive the object to be twisted to rotate.

After the object to be twisted rotates to a certain angle along with the adjustable wrench, when the handle needs to be rotated, the handle is rotated in a second rotation direction (i.e. the direction in which the stop portion 4211 is far away from the fixed member 100), firstly, the fixed member 100 and the movable member 200 are kept relatively stationary under the action of friction force of the object to be twisted, and the handle rotates relative to the fixed member 100 under the action of external force, so that the stop portion 4211 rotates in the direction far away from the fixed member 100, the stop portion 4211 is separated from the fixed member 100, the limit of the adjusting member 300 is released, at this time, the rigid contact state between the movable member 200 and the object to be twisted is also released, and then, the movable member further continues to rotate the handle, so that the movable member 200 and the fixed member 100 rotate relative to the object to be twisted.

After the handle is turned to a certain angle, when the object to be twisted needs to be turned again, the handle is continuously turned in the first turning direction, the stopping portion 4211 is abutted against the fixed member 100 again, and the fixed member 100 and the movable member 200 can continuously drive the object to be twisted to rotate.

By repeating the above-mentioned processes of rotating and turning the handle, the fixed member 100 and the movable member 200 can be in rigid contact with the object to be turned to transmit the transmission torque when the handle is rotated in the first rotating direction, and the fixed member 100 and the movable member 200 can be released from the rigid contact with the object to be turned to transmit no torque when the handle is turned. The width of the clamping opening only needs to be adjusted once in the process of reciprocating rotation of the handle, and the width of the clamping opening does not need to be adjusted subsequently.

Compared with the prior art, the adjustable wrench at least has the following technical effects:

the adjustable wrench provided by the invention can control the fixed piece 100 and the movable piece 200 to form hard contact or non-hard contact with a twisted object by rotating the handle, can enable the fixed piece 100 and the movable piece 200 to output torque force to the twisted object in only one direction, and when the adjustable wrench needs to be rotated to adjust the position of the adjustable wrench, the stopping portion 4211 of the handle can be separated from the stationary member 100 by rotating the handle, so that the stationary member 100 and the movable member 200 can be brought into non-rigid contact with the object to be twisted to stop the transmission of the torque to the object to be twisted, the object to be screwed can continuously rotate for a plurality of times in the same direction by rotating the handle back and forth within a certain range until the object to be screwed is screwed down, and the width of the clamping opening does not need to be readjusted in the process of rotating the handle back and forth, so that the operation steps are reduced, and the time consumed by screwing the screwed object is greatly saved.

In one embodiment, the adjusting member 300 is a movable worm movably mounted on the fixed member 100, the movable worm can rotate around a rotation center line relative to the fixed member 100 under an external force, a tooth portion 210 is formed at one end of the movable member 200, the tooth portion 210 of the movable member 200 is engaged with a thread on the movable worm, so that when the movable worm rotates around the rotation center line, the movable member 200 can move linearly relative to the fixed member 100 under the driving of the movable worm, so as to adjust the width of a clamping opening formed by the movable member 200 and the fixed member 100 when the movable member 200 and the fixed member 100 are in rigid contact with a rotated object.

It can be understood that, in the present embodiment, the rotation of the movable worm can be converted into the linear motion of the movable member 200 by rotating the movable worm, so as to adjust the width of the clamping opening, and thus the width of the clamping opening is adapted to the specification and size of the object to be twisted.

In one embodiment, referring to fig. 2 to 6, the adjustable wrench further includes an elastic member mounted on the fixing member, the elastic member being disposed between the fixing member 100 and the adjusting member 300 to provide an elastic force to the adjusting member 300 along the rotation center line. In this embodiment, the elastic member may provide a displacement space for the movement of the adjusting member 300 through the deformation of the elastic member, and at the same time, the elastic member may provide a restoring elastic force for the movement of the adjusting member 300 along the direction of the rotation center line, so that when the fixed member 100 and the movable member 200 are in a hard contact state with the object to be twisted, the fixed member 100 and the movable member 200 may be movably connected with the object to be twisted.

In this embodiment, the elastic member includes a first elastic member 500 and a second elastic member 600, the first elastic member 500 and the second elastic member 600 are both mounted on the fixing member 100, the first elastic member 500 is disposed between the first end of the adjusting member 300 and the fixing member 100, and the second elastic member 600 is disposed between the second end of the adjusting member 300 and the fixing member 100.

Specifically, both ends of the first elastic member 500 abut against the fixing member 100 and the adjusting member 300, respectively, and both ends of the second elastic member 600 abut against the fixing member 100 and the adjusting member 300, respectively. It should be noted that, compared with the prior art, the first end of the adjusting member 300 of the present application is connected to the fixing member 100 through the first elastic member 500, and the second end of the adjusting member 300 is connected to the fixing member 100 through the second elastic member 600, instead of directly contacting the adjusting member 300 with the fixing member 100 to form a connection, the adjusting member 300 has two moving modes with respect to the fixing member 100, one is rotating around the rotation center line, and the other is moving along the rotation center line.

Through the connection of the first elastic member 500 and the second elastic member 600, the first elastic member 500 and the second elastic member 600 can provide a certain amount of deformation for the displacement of the adjusting member 300, and the adjusting member 300 can be floatingly mounted on the fixing member 100, thereby realizing the movement of the adjusting member 300 relative to the fixing member 100 along the direction of the rotation center line. In addition, the first elastic member 500 and the second elastic member 600 can also change the rigid contact between the movable member 200 and the object to be twisted into the elastic contact, so that the movable member 200 always keeps the elastic contact with the object to be twisted when rotating relative to the object to be twisted, thereby forming the movable connection.

In one embodiment, an end of the adjusting member 300 adjacent to the elastic member is formed with a positioning protrusion 310 extending outward, and the elastic member is sleeved on the positioning protrusion 310.

In this embodiment, the two ends of the movable worm are formed with positioning protrusions 310 extending outward, and the first elastic member 500 and the second elastic member 600 are respectively sleeved on the positioning protrusions 310 at the two ends of the movable worm.

In this embodiment, the first elastic member 500 and the second elastic member 600 are both springs. In other embodiments, the elastic member may be a resilient member such as a spring or a flexible block.

Specifically, the positioning protrusion 310 is used for positioning the positions of the first elastic member 500 and the second elastic member 600, and the first elastic member 500 and the second elastic member 600 are sleeved on the positioning protrusions 310 at the two ends of the movable worm, so that when the movable worm moves along the rotation center line and the first elastic member 500 or the second elastic member 600 is squeezed or stretched, the first elastic member 500 and the second elastic member 600 cannot be separated from the fixing member 100.

In this embodiment, the stopping portion 4211 is a convex tooth structure with a slot in the middle, the stopping portion 4211 is detachably connected to the fixed member, when the handle is separated from the fixed member and the limit of the movable worm is released, the movable worm can move relative to the fixed member 100 along the rotation center line direction simultaneously with the movable member 200, so that the movable member 200 and the fixed member 100 release the hard contact with the object to be twisted, at this time, the width of the clamping opening can be changed along with the movement of the movable member 200, and the movable member 200 and the fixed member 100 do not transmit torque to the object to be twisted.

When the stopping portion 4211 of the handle abuts against the fixed member 100, the protruding tooth-shaped structure is clamped on the outer side of the fixed member 100, the top edge of the protruding tooth-shaped structure is stopped on the moving path of the movable worm, the protruding tooth-shaped structure is stopped on the moving direction of the movable worm so as to limit the movable worm, the movable member 200 cannot move in the direction of enlarging the clamping opening, at the moment, the movable member 200 is matched with the fixed member 100, and the handle is driven to rotate the object to be twisted, so that the torque is transmitted to the object to be twisted.

In one embodiment, the fixing member 100 is formed with a limiting protrusion 110, the limiting protrusion 110 protrudes out of the outer side of the fixing member 100, the limiting protrusion 110 is disposed on a moving path of the assembling portion 4212 rotating relative to the fixing member 100, the limiting protrusion 110 limits a rotating angle of the handle relative to the fixing member 100, when the handle rotates to a predetermined angle relative to the fixing member 100, the limiting protrusion 110 abuts against the assembling portion 4212, and the handle can drive the fixing member 100 to rotate together.

Specifically, when the handle starts to rotate, the handle rotates relative to the fixing member 100 (at this time, the fixing member 100 remains stationary), so that the stopping portion 4211 is separated from the adjusting member 300, and then when the handle continues to rotate to a certain angle, the assembling portion 4212 rotates to a position abutting against the limiting protrusion 110 of the fixing member 100, and at this time, the handle continues to rotate, so that the fixing member 100 rotates together under the driving of the handle (the handle and the fixing member 100 rotate simultaneously), and the movable wrench can rotate to the initial position as a whole.

It should be noted that, the size of the "predetermined angle" in the "when the handle rotates to the predetermined angle relative to the fixing member 100" of the present application depends on the included angle formed by the side edge of the position-limiting protrusion 110 and the side edge of the assembling portion 4212 of the handle, and the present application does not limit the size of the "predetermined angle".

In order to facilitate understanding of the working process of the adjustable wrench provided in this embodiment, the hexagonal bolt 800 is screwed by the adjustable wrench as an example to illustrate the working principle of the adjustable wrench in this embodiment:

in an initial state, referring to fig. 3, the stopping portion 4211 abuts against the outside of the fixed member 100 and limits the movable worm in the direction of the rotation center line, first, the head of the hexagon bolt 800 is clamped into the clamping opening between the fixed member 100 and the movable member 200, the fixed member 100 on one side of the clamping opening abuts against one side edge of the hexagon bolt 800, then the position of the movable member 200 on the other side of the clamping opening is adjusted by rotating the movable screw, so that the width of the clamping opening is matched with the distance between two opposite side surfaces of the head of the hexagon bolt 800, and an external force is applied to rotate the stopping portion 4211 in the direction close to the fixed member 100, referring to fig. 4, the fixed member 100 receives a thrust force transmitted by the stopping portion 4211, so that the fixed member 100 and the movable member 200 rotate simultaneously to transmit a torque to the hexagon bolt 800.

When the hexagon bolt 800 rotates a certain angle (for example, 60 ° or 120 °), the handle is rotated, so that the stopping portion 4211 of the handle rotates in a direction away from the fixing member 100, the stopping portion 4211 is separated from the fixing member 100, and the stopping portion 4211 of the handle releases the limit of the movable worm. Referring to fig. 5, at this time, the movable worm is in a floating state under the elastic support of the first elastic member 500 and the second elastic member 600, the movable member 200 is released from the hard contact state with the hexagon bolt 800, and is in elastic contact with the hexagon bolt 800, and the width of the clamping opening of the movable member 200 in the floating state can be changed.

The handle is continuously rotated until the assembling portion 4212 of the handle abuts against the limiting protrusion 110 on the fixing member 100, and the handle pushes the fixing member 100 and the movable member 200 to rotate. Referring to fig. 6, since the distance between two opposite corners of the head of the hexagon bolt 800 is greater than the distance between two opposite sides, the movable member 200 in the floating state is pushed outward by the hexagon bolt 800 during the rotation process, so that the width of the clamping opening is adapted to the distance between two opposite corners of the head of the hexagon bolt 800. Meanwhile, the movable worm engaged with the movable member 200 also moves together with the movable member 200, and the first elastic member 500 and the second elastic member 600 keep the movable worm in a stress balance during the movement. It can be understood that although the fixed member 100 and the movable member 200 are kept in contact with the head of the hexagon bolt 800, the fixed member 100 and the movable member 200 are not in hard contact with the hexagon bolt 800, so that torque is not transmitted to the hexagon bolt 800, and the hexagon bolt 800 does not rotate with the fixed member 100 and the movable member 200.

When the handle is rotated to the positions of the fixed member 100 and the movable member 200 opposite to the other two sides of the head of the hexagon bolt 800, the stop portion 4211 is moved toward the fixed member 100 by rotating the handle in the opposite direction. The handle moves relative to the fixed member 100 and the movable member 200, and then the stop portion 4211 is again abutted to the outer side of the fixed member 100 and forms a limit to the movable worm, and then the width of the clamping opening is restored to the originally adjusted size. The movable member 200 and the hexagon bolt 800 are changed back to the hard contact from the elastic contact, and simultaneously the fixed member 100 and the movable member 200 can rotate together under the thrust action of the handle, and the fixed member 100 and the movable member 200 which restore the hard contact with the head of the hexagon bolt 800 transmit the torque to the hexagon bolt 800 again. This is repeated to turn the handle back and forth until hex bolt 800 is tightened.

In one embodiment, referring to fig. 2 to 8, the handle includes a connecting handle and a folding handle 430, a first end of the connecting handle is rotatably connected to the fixed member 100, a stopping portion 4211 is formed at the first end of the connecting handle, a second end of the connecting handle is rotatably connected to the folding handle 430, the handle can drive the fixed member 100 and the movable member 200 to rotate in a first rotation plane under the action of an external force, the folding handle 430 can rotate relative to the connecting handle in a second rotation plane under the action of the external force, and the second rotation plane is perpendicular to the first rotation plane.

Specifically, referring to fig. 2 to 7, the connecting handle is hinged to the folding handle 430, so that the connecting handle and the folding handle 430 can rotate relatively, and the handle can be bent. In this embodiment, the handle is bent in the second rotation plane, and the rotation of the handle relative to the fixed member 100 and the rotation of the fixed member 100 and the movable member 200 are performed in the first rotation plane, so that the handle is not bent under the action of an external force applied to the handle during the rotation of the handle relative to the fixed member 100 and the rotation of the fixed member 100 and the movable member 200. Through setting up connection handle and folding handle 430, make the handle can form and buckle to adapt to different service environment, convenient storage has simultaneously reduced the required space when accomodating.

In this embodiment, referring to fig. 2 to 8, the handle further includes a hinge 440, the hinge 440 is disposed between the connecting handle and the folding handle 430, one end of the hinge 440 is rotatably connected to the connecting handle, and the other end of the hinge 440 is rotatably connected to the folding handle 430.

Specifically, in the present embodiment, the hinge 440 is disposed between the connection handle and the folding handle 430, so that the folding handle 430 can be folded on the connection handle, and the length of the handle can be adjusted, thereby facilitating the use and storage of the adjustable wrench.

In one embodiment, the connection handle includes a first rod 421 and a second rod 422, a first end of the first rod 421 is rotatably connected to the fixing element 100, a stopping portion 4211 is formed on the first end of the first rod 421, a second end of the first rod 421 is rotatably connected to a first end of the second rod 422, the second rod 422 can rotate relative to the first rod 421 in a second rotation plane under an external force, and the second rotation plane is perpendicular to the first rotation plane.

In this embodiment, the adjustable wrench further includes a latch 700, a second end of the first rod 421 is provided with a first latch hole 4213, a first end of the second rod 422 is provided with a second latch hole 4221, and when the second rod 422 and the first rod 421 rotate relatively to align the first latch hole 4213 and the second latch hole 4221, the latch 700 can be inserted into the first latch hole 4213 and the second latch hole 4221 simultaneously to lock the relative positions of the first rod 421 and the second rod 422.

Specifically, the first rod 421 and the second rod 422 are rotatably connected, so that the connecting handle is of a bendable structure, and when the handle is not required to be bent, the bolt 700 can be inserted into the aligned first bolt hole 4213 and the aligned second bolt hole 4221, so that the relative positions of the first rod 421 and the second rod 422 are locked; when the handle needs to be bent, bolt 700 is pulled out of first bolt hole 4213 and/or second bolt hole 4221, so that first rod 421 and second rod 422 are unlocked, and second rod 422 can rotate relative to first rod 421.

In this embodiment, when the first rod 421 and the second rod 422 are located on the same straight line, the first end of the first rod 421 and the second end of the second rod 422 are inserted, the first plug hole 4213 is disposed at the insertion position of the first rod 421 and the second rod 422, and the second plug hole 4221 is disposed at the insertion position of the second rod 422 and the first rod 421. When the first rod 421 and the second rod 422 are located on the same straight line, the first latch hole 4213 can be aligned with the second latch hole 4221, the latch 700 can be inserted into the first latch hole 4213 and the second latch hole 4221, and the first rod 421 and the second rod 422 are kept on the same straight line, so that the connection handle can be ensured to be in a straight state.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.