An adaptive wrench

Abstract

The utility model belongs to the wrench technical field, concretely relates to a self -adaptation wrench, which comprises a wrench main body, fixed tooth and movable activity tooth, is equipped with self -adaptation subassembly and locking assembly in the wrench main body, and the self -adaptation subassembly includes elastic member, the locking assembly includes movable rack, guide rack and gear fixed block, is provided with the knob on the guide rack, the knob is inserted in the gear fixed block, when the knob is inserted in the first position of gear fixed block, movable rack is engaged with guide rack, and the activity tooth is in the lock -up state, when the knob is inserted in the second position of gear fixed block, movable rack is separated from guide rack, and the activity tooth is in the free state. The utility model adjusts the up and down position of guide rack through setting knob, gear fixed block and the guide rack that can move up and down, and then makes the activity tooth be in the lock -up state or free state, and cooperates self -adaptation subassembly to make the board mouth work interval can be adaptive nut or bolt width, and the operation is convenient and quick.

Description

Technical Field

[0001] This utility model relates to the field of wrench technology, and in particular to an adaptive wrench. Background Technology

[0002] A wrench is a tool used to install nuts or bolts, widely used in production and daily life. Existing wrenches consist of a wrench body with a stationary die, a moving die, and a lead screw. Rotating the lead screw moves the moving die back and forth. When using a wrench, the operator adjusts the position of the moving die by rotating the lead screw to adjust the wrench size, depending on the nut or bolt size. This method of adjusting the wrench size is cumbersome, requiring manual adjustment by the operator, which is inconvenient and reduces production efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is: in order to solve the technical problem that adjusting the size of the wrench is time-consuming and laborious and has low production efficiency in the prior art, this utility model provides an adaptive wrench that can adapt to nuts or bolts of different sizes, and is convenient and quick to use.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an adaptive wrench, which includes: a wrench body, and a fixed tooth and a movable tooth installed on the wrench body, wherein the movable tooth can move closer to or further away from the fixed tooth to adjust the working distance of the wrench mouth;

[0005] The wrench body is provided with an adaptive component and a locking component. The adaptive component includes an elastic element, the two ends of which are respectively connected to the fixed tooth and the movable tooth. The locking component includes a movable rack, a guide rack, and a stop fixing block. The movable rack is installed on the movable tooth. The guide rack is movably disposed within the wrench body and is located below the movable rack. A handle is provided on the guide rack. The stop fixing block is disposed on the wrench body and the handle is inserted into the stop fixing block.

[0006] When the handle is inserted into the first position of the gear fixing block, the moving rack engages with the guide rack, and the movable tooth is locked. When the handle is inserted into the second position of the gear fixing block, the moving rack separates from the guide rack, and the movable tooth is free.

[0007] The specific technical effect is as follows: by setting a handle, a stop block, and a guide rack that can move up and down, the up and down position of the guide rack can be adjusted, thereby making the movable tooth in a locked or free state. The entire operation process only requires switching the handle between different positions of the stop block to realize the conversion between the free and locked states of the movable tooth. In addition, with the adaptive component, the working distance of the plate opening can adapt to the width of the nut or bolt, making the operation convenient and quick.

[0008] Furthermore, the guide rack extends in the left-right direction, and its length is greater than that of the movable rack. Therefore, when the movable tooth drives the movable rack to move to any position along the guide rack, the guide rack provides sufficient engagement length to ensure successful engagement between the movable rack and the guide rack, thus ensuring that the movable tooth can reliably enter the locked state.

[0009] Furthermore, the stop fixing block is provided with a fixing groove, a reset groove, and a moving groove. The fixing groove is located above the reset groove, and the moving groove is disposed on one side of the fixing groove and the reset groove. The two ends of the moving groove are respectively connected to the fixing groove and the reset groove. The handle can be inserted into any one of the fixing groove, the reset groove, or the moving groove. When the handle is inserted into the fixing groove, the moving rack meshes with the guide rack, and the movable tooth is in a locked state. When the handle is inserted into the reset groove or the moving groove, the moving rack separates from the guide rack, and the movable tooth is in a free state.

[0010] Furthermore, the wrench body is provided with a first mounting block and a second mounting block, which are located at both ends of the guide rack, respectively. A compression spring is installed in both the first mounting block and the second mounting block. Both ends of the guide rack are provided with protruding posts, and each compression spring is sleeved on a protruding post.

[0011] Furthermore, a limiting protrusion is provided on the upper edge of the first mounting block, and the limiting protrusion is located above the guide rack. Thus, by the limiting protrusion engaging with the guide rack above, the guide rack can be limited in position.

[0012] Furthermore, a mounting post is installed on the guide rack, and the handle includes a sleeve portion and a handle portion connected to each other. The sleeve portion is rotatably fitted onto the mounting post, and the handle portion is inserted into the stop fixing block.

[0013] Furthermore, the adaptive component also includes a connecting rod, a sleeve, and an end block. The connecting rod is connected to the movable tooth and fitted onto the sleeve. The end block is threadedly connected to the sleeve and connected to the fixed tooth. The elastic element is disposed inside the sleeve, and both ends of the elastic element are connected to the connecting rod and the end block, respectively.

[0014] Furthermore, the upper end of the wrench body is provided with an open guide groove, and the lower end of the movable tooth is slidably installed in the open guide groove.

[0015] Furthermore, the lower end of the movable tooth is provided with a guide block and a connecting block that are connected to each other. The guide block is slidably installed in the open guide groove. One end of the elastic element is connected to the connecting block, and the movable rack is installed at the lower end of the connecting block.

[0016] Furthermore, the wrench body includes a main body and a cover plate. The cover plate is mounted on the main body by screws. A mounting cavity for mounting a fixed tooth, a movable tooth, an adaptive component, and a locking component is formed between the main body and the cover plate. The stop fixing block is disposed on the cover plate. The handle passes through the cover plate and is inserted into the stop fixing block.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) By setting a handle, a stop fixing block and a guide rack that can move up and down, when the movable tooth is in a free state, the wrench mouth is aligned with the outer hexagonal surface of the nut or bolt and a forward pushing force is applied. The movable tooth can be opened by the nut or bolt, so that the working distance of the wrench mouth can adapt to the width of the nut or bolt. This design avoids the tedious operation of manually adjusting the working distance of the wrench mouth multiple times to adapt to different specifications of nuts or bolts, which greatly improves the convenience and efficiency of adjusting the size of the working distance of the wrench mouth, and saves operation time and energy.

[0019] (2) After the movable tooth is adaptively adjusted to a suitable position, the present invention moves the handle from the second position of the stop block to the first position, so that the movable rack meshes with the guide rack, thereby locking the movable tooth. This locking mechanism ensures that the movable tooth will not move randomly during the loosening or tightening of the nut or bolt, ensuring a stable connection between the wrench and the nut or bolt, improving the reliability and safety of operation, and effectively preventing slippage, damage to the nut or bolt caused by the movement of the movable tooth. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a structural schematic diagram of an adaptive wrench according to the present invention;

[0022] Figure 2 for Figure 1 Internal structure diagram;

[0023] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0024] Figure 4 This is a schematic diagram of the structure of the fixed tooth of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the movable tooth of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the adaptive component of this utility model;

[0027] Figure 7 This is a schematic diagram of the locking assembly of this utility model.

[0028] In the diagram: 1. Wrench body; 101. First mounting block; 102. Second mounting block; 103. Limiting protrusion; 104. Opening guide groove; 105. Main body; 106. Cover plate; 107. Screw;

[0029] 2. Fixed tooth; 201. Second connecting post;

[0030] 3. Movable tooth; 301. Guide block; 302. Connecting block; 303. First connecting post;

[0031] 4. Adaptive component; 401. Linkage rod; 402. Sleeve rod; 403. End block; 404. First connecting hole; 405. Second connecting hole;

[0032] 5. Locking assembly; 501. Moving rack; 502. Guide rack; 503. Stop fixing block; 504. Handle; 505. Fixing groove; 506. Reset groove; 507. Moving groove; 508. Compression spring; 509. Protruding post; 510. Mounting post. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] like Figures 1 to 7 The diagram shows a preferred embodiment of the present invention. This embodiment provides an adaptive wrench, comprising: a wrench body 1, and a fixed tooth 2 and a movable tooth 3 mounted on the wrench body 1. The movable tooth 3 can move closer to or further away from the fixed tooth 2 to adjust the working distance of the wrench opening. An adaptive component 4 and a locking component 5 are provided within the wrench body 1. The adaptive component 4 includes an elastic element, with both ends connected to the fixed tooth 2 and the movable tooth 3 respectively. The locking component 5 includes a movable rack 501, a guide rack 502, and a stop fixing block 503. The movable rack 501 is mounted on the movable tooth 3. The guide rack 502 is movably disposed within the wrench body 1 and located below the movable rack 501. A handle 504 is provided on the guide rack 502. The stop fixing block 503 is disposed on the wrench body 1, and the handle 504 is inserted into the stop fixing block 503.

[0037] When the handle 504 is inserted into the first position of the gear fixing block 503, the moving rack 501 meshes with the guide rack 502, and the movable tooth 3 is locked. When the handle 504 is inserted into the second position of the gear fixing block 503, the moving rack 501 separates from the guide rack 502, and the movable tooth 3 is free.

[0038] Therefore, by setting the handle 504, the stop fixing block 503, and the guide rack 502 that can move up and down, the up and down position of the guide rack 502 can be adjusted, thereby making the movable tooth 3 in a locked state or a free state. The entire operation process only requires switching the handle 504 between different positions of the stop fixing block 503 to realize the conversion between the free state and the locked state of the movable tooth 3. In addition, with the adaptive component 4, the working distance of the plate opening can adapt to the width of the nut or bolt, making the operation convenient and quick.

[0039] In a preferred embodiment, the guide rack 502 extends in the left-right direction, and the length of the guide rack 502 is greater than the length of the movable rack 501. Therefore, when the movable tooth 3 drives the movable rack 501 to any position along the guide rack 502, the guide rack 502 can provide sufficient engagement length to ensure that the movable rack 501 can successfully engage with the guide rack 502, ensuring that the movable tooth 3 can reliably enter the locked state.

[0040] In a preferred embodiment, the stop fixing block 503 is provided with a fixing groove 505, a reset groove 506, and a moving groove 507. The fixing groove 505 is located above the reset groove 506, and the moving groove 507 is disposed on one side of the fixing groove 505 and the reset groove 506, with both ends of the moving groove 507 connected to the fixing groove 505 and the reset groove 506, respectively. The handle 504 can be inserted into any one of the fixing groove 505, the reset groove 506, or the moving groove 507. When the handle 504 is inserted into the fixing groove 505, the moving rack 501 meshes with the guide rack 502, and the movable tooth 3 is in a locked state. When the handle 504 is inserted into the reset groove 506 or the moving groove 507, the moving rack 501 separates from the guide rack 502, and the movable tooth 3 is in a free state.

[0041] In a preferred embodiment, the wrench body 1 is provided with a first mounting block 101 and a second mounting block 102. The first mounting block 101 and the second mounting block 102 are respectively located at both ends of the guide rack 502. A compression spring 508 is installed in both the first mounting block 101 and the second mounting block 102. Both ends of the guide rack 502 are provided with protruding posts 509, and each compression spring 508 is sleeved on a protruding post 509.

[0042] In a preferred embodiment, a limiting protrusion 103 is provided on the upper edge of the first mounting block 101, and the limiting protrusion 103 is located above the guide rack 502. Thus, by the limiting protrusion 103 engaging above the guide rack 502, the guide rack 502 can be limited.

[0043] In a preferred embodiment, a mounting post 510 is mounted on the guide rack 502, and the handle 504 includes a sleeve portion and a handle portion connected to each other. The sleeve portion is rotatably fitted onto the mounting post 510, and the handle portion is inserted into the stop fixing block 503.

[0044] In a preferred embodiment, the adaptive component 4 further includes a connecting rod 401, a sleeve rod 402, and an end block 403. The connecting rod 401 is connected to the movable tooth 3, and the connecting rod 401 and the sleeve rod 402 are fitted together. The end block 403 is threadedly connected to the sleeve rod 402 and is connected to the fixed tooth 2. An elastic element is disposed inside the sleeve rod 402, and both ends of the elastic element are connected to the connecting rod 401 and the end block 403, respectively.

[0045] Specifically, the movable tooth 3 is provided with a first connecting post 303, the connecting rod 401 is provided with a first connecting hole 404 for installing the first connecting post 303, the fixed tooth 2 is provided with a second connecting post 201, and the end block 403 is provided with a second connecting hole 405 for installing the second connecting post 201.

[0046] In a preferred embodiment, the upper end of the wrench body 1 is provided with an open guide groove 104, and the lower end of the movable tooth 3 is slidably installed in the open guide groove 104.

[0047] In a preferred embodiment, the lower end of the movable tooth 3 is provided with a guide block 301 and a connecting block 302 connected to each other. The guide block 301 is slidably installed in the open guide groove 104, one end of the elastic element is connected to the connecting block 302, and the movable rack 501 is installed at the lower end of the connecting block 302.

[0048] In a preferred embodiment, the wrench body 1 includes a main body portion 105 and a cover plate portion 106. The cover plate portion 106 is mounted on the main body portion 105 by screws 107. A mounting cavity for mounting a fixed tooth 2, a movable tooth 3, an adaptive component 4, and a locking component 5 is formed between the main body portion 105 and the cover plate portion 106. A stop fixing block 503 is disposed on the cover plate portion 106, and a handle 504 passes through the cover plate portion 106 and is inserted into the stop fixing block 503.

[0049] In a preferred embodiment, the wrench body 1 is made of chrome vanadium steel, which gives the wrench body 1 the beneficial effects of wear resistance and corrosion resistance.

[0050] In a preferred embodiment, a PVDF (polyvinylidene fluoride) piezoelectric film sensor is provided in the fixed tooth 2 or the movable tooth 3 to monitor torque changes in real time.

[0051] The working principle of this utility model is as follows:

[0052] The gear fixing block 503 is provided with a fixing groove 505, a reset groove 506, and a moving groove 507. The fixing groove 505 is located above the reset groove 506. The moving groove 507 is located on one side of the fixing groove 505 and the reset groove 506, and both ends of the moving groove 507 are connected to the fixing groove 505 and the reset groove 506, respectively. When the handle 504 is inserted into the moving groove 507, the handle 504 can move up and down in the moving groove 507, thereby driving the guide rack 502 to move up and down under the support of the compression spring 508. At this time, the moving rack 501... When the guide rack 502 is separated, the movable tooth 3 is in a free state; when the handle 504 is inserted into the reset slot 506, the guide rack 502 is at its lowest limit position, the moving rack 501 is completely separated from the guide rack 502, the movable tooth 3 is in a free state, and the movable tooth 3 moves towards the fixed tooth 2 under the elastic action of the elastic element until it is fully reset; when the handle 504 is inserted into the fixed slot 505, the guide rack 502 is at its highest limit position, at this time the moving rack 501 meshes with the guide rack 502, and the movable tooth 3 is in a locked state;

[0053] In use, turn the handle 504 into the moving slot 507, align the plate opening with the outer hexagonal surface of the nut or bolt, and apply a forward pushing force. The movable tooth 3 can be opened by the nut or bolt. When the tooth surface of the movable tooth 3 is in close contact with the outer hexagonal surface of the fixed tooth 2, turn the handle 504 into the fixed slot 505, so that the moving rack 501 and the guide rack 502 mesh, and the movable tooth 3 is locked. Then, the subsequent loosening or tightening operation of the nut or bolt can begin. After use, turn the handle 504 into the reset slot 506 and remove the plate opening from the nut or bolt. The movable tooth 3 is no longer restricted by the nut or bolt and moves towards the fixed tooth 2 under the elastic action of the elastic element until it is fully reset.

[0054] Compared with the prior art, the beneficial effects of this utility model are:

[0055] (1) By setting a handle 504, a stop fixing block 503 and a guide rack 502 that can move up and down, when the movable tooth 3 is in a free state, the wrench mouth is aligned with the outer hexagonal surface of the nut or bolt and a forward pushing force is applied. The movable tooth 3 can be opened by the nut or bolt, so that the working distance of the wrench mouth can adapt to the width of the nut or bolt. This design avoids the tedious operation of manually adjusting the working distance of the wrench mouth multiple times to adapt to different specifications of nuts or bolts, which greatly improves the convenience and efficiency of adjusting the size of the working distance of the wrench mouth, and saves operation time and energy.

[0056] (2) After the movable tooth 3 is adaptively adjusted to a suitable position, the present invention moves the handle 504 from the second position of the stop fixing block 503 to the first position, so that the movable rack 501 meshes with the guide rack 502, thereby locking the movable tooth 3. This locking mechanism ensures that the movable tooth 3 will not move arbitrarily during the process of loosening or tightening the nut or bolt, ensuring a stable connection between the wrench and the nut or bolt, improving the reliability and safety of operation, and effectively preventing problems such as slippage and damage to the nut or bolt caused by the movement of the movable tooth 3.

[0057] The above description is based on the preferred embodiments of this utility model. Through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined by the scope of the claims.

Claims

1. An adaptive wrench, characterized in that, include: The wrench body (1), and the fixed tooth (2) and the movable tooth (3) installed on the wrench body (1), wherein the movable tooth (3) can move closer to or further away from the fixed tooth (2) to adjust the working distance of the wrench mouth; The wrench body (1) is provided with an adaptive component (4) and a locking component (5). The adaptive component (4) includes an elastic element, the two ends of which are respectively connected to the fixed tooth (2) and the movable tooth (3). The locking component (5) includes a movable rack (501), a guide rack (502), and a stop fixing block (503). The movable rack (501) is installed on the movable tooth (3). The guide rack (502) is movable up and down and is located inside the wrench body (1) and below the movable rack (501). A handle (504) is provided on the guide rack (502). The stop fixing block (503) is provided on the wrench body (1) and the handle (504) is inserted into the stop fixing block (503). When the handle (504) is inserted into the first position of the stop fixing block (503), the moving rack (501) meshes with the guide rack (502), and the movable tooth (3) is locked. When the handle (504) is inserted into the second position of the stop fixing block (503), the moving rack (501) separates from the guide rack (502), and the movable tooth (3) is free.

2. The adaptive wrench as described in claim 1, characterized in that, The guide rack (502) extends in the left-right direction, and the length of the guide rack (502) is greater than the length of the moving rack (501).

3. The adaptive wrench as described in claim 1, characterized in that, The stop block (503) is provided with a fixing groove (505), a reset groove (506), and a moving groove (507). The fixing groove (505) is located above the reset groove (506). The moving groove (507) is disposed on one side of the fixing groove (505) and the reset groove (506), and both ends of the moving groove (507) are respectively connected to the fixing groove (505) and the reset groove (506). The handle (504) can be inserted into the fixing groove (505). In any one of the slots 505, 506, or 507, when the handle (504) is inserted into the fixed slot (505), the moving rack (501) meshes with the guide rack (502), and the movable tooth (3) is locked. When the handle (504) is inserted into the reset slot (506) or the moving slot (507), the moving rack (501) separates from the guide rack (502), and the movable tooth (3) is free.

4. The adaptive wrench as described in claim 1, characterized in that, The wrench body (1) is provided with a first mounting block (101) and a second mounting block (102). The first mounting block (101) and the second mounting block (102) are located at both ends of the guide rack (502). A compression spring (508) is installed in both the first mounting block (101) and the second mounting block (102). Both ends of the guide rack (502) are provided with protruding posts (509). Each compression spring (508) is sleeved on a protruding post (509).

5. An adaptive wrench as described in claim 4, characterized in that, The upper edge of the first mounting block (101) is provided with a limiting protrusion (103), which is located above the guide rack (502).

6. An adaptive wrench as described in claim 1, characterized in that, The guide rack (502) is equipped with a mounting post (510), and the handle (504) includes a sleeve part and a handle part connected to each other. The sleeve part is rotatably sleeved on the mounting post (510), and the handle part is inserted into the stop fixing block (503).

7. An adaptive wrench as described in claim 1, characterized in that, The adaptive component (4) further includes a connecting rod (401), a sleeve rod (402), and an end block (403). The connecting rod (401) is connected to the movable tooth (3), and the connecting rod (401) is fitted with the sleeve rod (402). The end block (403) is threadedly connected to the sleeve rod (402) and connected to the fixed tooth (2). The elastic element is disposed inside the sleeve rod (402), and both ends of the elastic element are connected to the connecting rod (401) and the end block (403) respectively.

8. An adaptive wrench as described in claim 1, characterized in that, The upper end of the wrench body (1) is provided with an open guide groove (104), and the lower end of the movable tooth (3) is slidably installed in the open guide groove (104).

9. An adaptive wrench as described in claim 8, characterized in that, The lower end of the movable tooth (3) is provided with a guide block (301) and a connecting block (302) connected to each other. The guide block (301) is slidably installed in the open guide groove (104). One end of the elastic element is connected to the connecting block (302). The movable rack (501) is installed at the lower end of the connecting block (302).

10. An adaptive wrench as described in claim 1, characterized in that, The wrench body (1) includes a main body (105) and a cover plate (106). The cover plate (106) is mounted on the main body (105) by screws (107). A mounting cavity for mounting a fixed tooth (2), a movable tooth (3), an adaptive component (4), and a locking component (5) is formed between the main body (105) and the cover plate (106). The stop fixing block (503) is disposed on the cover plate (106). The handle (504) passes through the cover plate (106) and is inserted into the stop fixing block (503).

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