Self-adapting adjustable wrench

Abstract

The application relates to a self-adaptive adjustable wrench, which comprises a wrench body and a self-adaptive adjusting assembly. The jaw part of the wrench body is provided with a working jaw groove and a baffle corresponding to the bottom end of the jaw groove. The self-adaptive adjusting assembly is rotatably arranged in the jaw groove and comprises a plurality of axially stacked adjusting pieces and a fastener locked in the jaw part. The adjusting pieces are movably arranged in the jaw groove above the baffle through the fastener. When the wrench body is sleeved on a workpiece, the workpiece lifts up a corresponding number of adjusting pieces, and a matched clamping space is formed between the remaining adjusting pieces. The tail end of the adjusting piece is provided with an arc surface. The contact surface between the adjusting piece and the workpiece is provided with anti-skid tooth patterns or magnetic pieces. The tail end of the handle part of the wrench body is provided with a connecting hole. The fastener is a screw, the inner wall of the screw thread hole is coated with fastening glue, and the rotating part of the adjusting piece is coated with a self-lubricating coating. The application has the technical effects of being able to adapt to workpieces of different sizes and enhancing clamping stability.

Description

Technical Field

[0001] This application relates to the technical field of wrenches, and more particularly to an adaptive adjustable wrench. Background Technology

[0002] Currently, wrenches are a commonly used and crucial tool. With the continuous development of industry, the demand for wrenches is becoming increasingly diversified. Wrenches help operators tighten or loosen nuts, bolts, and other workpieces, playing an irreplaceable role in the assembly, debugging, and daily maintenance of various mechanical equipment. They improve work efficiency and ensure the normal operation and structural stability of equipment.

[0003] To accommodate workpieces of different sizes, two methods are typically used. One is to prepare a set of fixed wrenches in different sizes, each corresponding to a specific workpiece size. During actual operation, the appropriate wrench is selected based on the workpiece size. The other method is to use a standard adjustable wrench, adapting the jaws to different sizes by adjusting the opening size. This type of adjustable wrench usually uses a screw or other adjustment mechanism to change the jaw spacing to meet the needs of different workpieces. Preparing a set of fixed wrenches requires significant cost in purchasing different sizes and is inconvenient to carry, often resulting in situations where the appropriate size wrench cannot be found on-site. While standard adjustable wrenches can adjust the opening size, the adjustment requires manual operation, making it difficult to guarantee accuracy. This can lead to mismatches with the workpiece size, causing slippage during use, affecting work efficiency, and potentially even damaging the workpiece.

[0004] In view of the aforementioned technologies, it is necessary to propose an adaptive adjustable wrench to solve the above problems. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides an adaptive adjustable wrench.

[0006] This application provides an adaptive adjustable wrench, which adopts the following technical solution: An adaptive adjustable wrench includes: A wrench body includes a jaw portion, the jaw portion having a working jaw groove, and a baffle corresponding to the jaw groove at the bottom end of the jaw portion; and An adaptive adjustment component is rotatably disposed within the jaw groove for adapting to and restricting the workpiece. The adaptive adjustment component includes multiple adjusting plates axially stacked within the jaw groove and fasteners locking onto the jaw portion. The multiple adjusting plates are movably mounted within the jaw groove via the fasteners. The multiple adjusting plates are disposed above the baffle, and the baffle supports the multiple adjusting plates and restricts their reverse displacement. When the wrench body is inserted into the workpiece, the workpiece lifts up a corresponding number of the adjusting tabs according to its size, and the remaining adjusting tabs that are not lifted form a clamping space that matches the size of the workpiece.

[0007] By adopting the above technical solution, when the wrench body is fitted into the workpiece, workpieces of different sizes can lift up the corresponding number of adjusting tabs according to their own size. Since multiple adjusting tabs are axially stacked in the jaw groove and supported by baffles that have the function of supporting and limiting reverse displacement, after the workpiece lifts up some adjusting tabs, the remaining adjusting tabs that are not lifted up form a clamping space that matches the size of the workpiece. This achieves adaptive adjustment for workpieces of different sizes, effectively improving the versatility of the wrench, allowing one wrench to be adapted to workpieces of various sizes, eliminating the need to frequently change wrenches of different specifications, and improving work efficiency.

[0008] Optionally, the tail end of the adjusting plate is provided with an arc-shaped surface in the jaw groove, and when the adjusting plate is lifted by the workpiece, the arc-shaped surface at its tail end abuts against the baffle.

[0009] By adopting the above technical solution, the arc-shaped surface design allows for smoother and more fluid rotation of the adjusting plate during contact with the baffle, reducing jamming and wear between the adjusting plate and the baffle during lifting. Simultaneously, the contact method between the arc-shaped surface and the baffle better disperses the force exerted on the adjusting plate by the workpiece, preventing excessive localized stress and damage. This ensures the stability and reliability of the adjusting plate when adapting to workpieces of different sizes, enabling the adaptive adjustable wrench to more precisely form a matching clamping space according to the workpiece size, thus improving the wrench's performance and lifespan.

[0010] Optionally, the contact surfaces of the plurality of adjustment plates with the workpiece are provided with anti-slip serrations.

[0011] By adopting the above technical solution, when the wrench clamps the workpiece, the anti-slip teeth can increase the friction between the adjusting plate and the workpiece surface, effectively preventing relative slippage between the adjusting plate and the workpiece during operation. This improves the stability and reliability of the wrench clamping the workpiece, allowing operators to operate the workpiece more stably when using this adaptive adjustable wrench, avoiding operational errors or damage to the workpiece due to slippage.

[0012] Optionally, magnetic absorbing plates are provided on the contact surfaces of the plurality of adjustment plates and the workpiece to increase contact stability, and the magnetic absorbing plates are magnetically attracted to the ends of the workpiece.

[0013] By adopting the above technical solution, when the wrench body is fitted onto the workpiece, the magnetic plate will generate a magnetic attraction with the end of the workpiece. This magnetic attraction can enhance the tightness of the connection between the adjusting plate and the workpiece, effectively preventing relative sliding or shaking between the workpiece and the adjusting plate during operation, thereby greatly increasing the stability of the contact between the adjusting plate and the workpiece, so that the wrench can more reliably clamp and operate the workpiece during use.

[0014] Optionally, the wrench body also includes a handle portion, the tail end of which has a through-hole for easy carrying, and the front end of the handle portion is integrally formed with the jaw portion.

[0015] By adopting the above technical solution, the connection strength and stability between the two can be enhanced, avoiding loosening or separation between the handle and jaws due to force during use, ensuring the reliability of the overall structure of the adjustable wrench, and making operation safer and smoother.

[0016] Optionally, a through hole is provided on one side of the jaw portion, and a threaded hole is provided on the inner wall of the jaw groove. The fastener is a screw, the screw of which passes through the through hole and the tail ends of the plurality of adjusting pieces in sequence, and is threadedly connected to the threaded hole.

[0017] By adopting the above technical solution, this connection method allows the adjusting plate to be movably installed in the jaw groove. When the wrench body is inserted into the workpiece, the workpiece pushes up a corresponding number of adjusting plates. Since the adjusting plate is movable in the jaw groove through this screw connection, it ensures that the adjusting plate can flexibly respond to changes in workpiece size. Moreover, the threaded connection between the screw and the threaded hole has good stability, ensuring that the adjusting plate will not easily detach from the jaw groove during the movement. It can stably form a clamping space that matches the workpiece size together with the jaw groove, realizing effective clamping of workpieces of different sizes.

[0018] Optionally, the connection between the fastener and the inner wall of the threaded hole is coated with thread-fastening adhesive.

[0019] By adopting the above technical solution, the thread-fastening adhesive has adhesive and curing properties. After application, it can fill the tiny gap between the fastener and the inner wall of the threaded hole, making the two tightly bonded. When the wrench vibrates or is subjected to external force during operation, the thread-fastening adhesive can prevent the fastener from loosening or falling off, ensuring the stable installation of the adaptive adjustment component, and thus ensuring the stability and reliability of the entire adaptive adjustable wrench during use.

[0020] Optionally, the fastener and the rotating ends of the plurality of adjusting tabs are coated with a self-lubricating coating to reduce friction.

[0021] By adopting the above technical solution, the self-lubricating coating can continuously provide lubrication during the rotation of the adjusting plate, reducing the direct contact and frictional resistance between the adjusting plate and the fastener. When the wrench body is inserted into the workpiece and the adjusting plate is lifted and rotated, this low-friction rotation process is smoother, which not only reduces the wear of the adjusting plate and the fastener and extends their service life, but also makes the adjusting plate more sensitive and efficient in adapting to workpieces of different sizes, and can more quickly and accurately form a clamping space that matches the size of the workpiece.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The multiple adjustment plates of the adaptive adjustment component can be lifted according to the workpiece size, and the remaining adjustment plates that are not lifted form a matching clamping space. There is no need to prepare multiple sets of fixed wrenches of different specifications, which reduces costs and is easy to carry. It can automatically adapt to the workpiece size, avoid the operation of manually adjusting the opening size of ordinary adjustable wrenches, improve adjustment accuracy, reduce slippage, improve work efficiency, and avoid damage to the workpiece. 2. The anti-slip serrations on the contact surfaces of multiple adjustment plates and the workpiece increase the friction with the workpiece, further improving the reliability of clamping; the magnetic attraction plates on the contact surfaces of multiple adjustment plates and the workpiece magnetically attract the end of the workpiece, increasing the contact stability between the adjustment plates and the workpiece and preventing the workpiece from shaking or falling off during operation. Attached Figure Description

[0023] Figure 1 This is a three-dimensional view of an adaptive adjustable wrench according to this application.

[0024] Figure 2 This is a three-dimensional view of the wrench body of an adaptive adjustable wrench according to this application.

[0025] Figure 3 This is a three-dimensional view of a reference example one of an adaptive adjustable wrench in this application.

[0026] Figure 4 This is a three-dimensional view of a reference example two of an adaptive adjustable wrench in this application.

[0027] Figure 5 This is a three-dimensional view of the fastener of an adaptive adjustable wrench according to this application.

[0028] Figure 6 This is a three-dimensional view of a second embodiment of an adaptive adjustable wrench in this application.

[0029] Figure 7This is a three-dimensional view of a third embodiment of an adaptive adjustable wrench in this application.

[0030] In the diagram: 1. Wrench body; 11. Jaw; 111. Jaw groove; 112. Through hole; 113. Threaded hole; 12. Baffle; 13. Handle; 131. Connecting hole; 2. Adaptive adjustment component; 21. Adjustment plate; 211. Arc surface; 212. Anti-slip teeth; 213. Magnetic plate; 214. Rotating hole; 22. Fastener. Detailed Implementation

[0031] The following is in conjunction with the accompanying drawings. Figures 1-7 This application will be described in further detail.

[0032] Example 1 refer to Figures 1-5 This application discloses an adaptive movable wrench, including: a wrench body 1 and an adaptive adjustment component 2.

[0033] The wrench body 1 includes a jaw portion 11, which is provided with a working jaw groove 111. A baffle 12 is provided at the bottom end of the jaw portion 11 corresponding to the jaw groove 111. An adaptive adjustment component 2 is rotatably disposed in the jaw groove 111 to adapt to and restrict the workpiece. The adaptive adjustment component 2 includes multiple adjusting pieces 21 axially stacked in the jaw groove 111 and fasteners 22 locked on the jaw portion 11. The multiple adjusting pieces 21 are movably installed in the jaw groove 111 by means of the fasteners 22. The multiple adjusting pieces 21 are disposed above the baffle 12, and the baffle 12 is used to support the multiple adjusting pieces 21 and restrict their reverse displacement. When the wrench body 1 is inserted into the workpiece, the workpiece pushes up a corresponding number of adjusting pieces 21 according to its size, and the remaining unpush-up adjusting pieces 21 form a clamping space that matches the size of the workpiece.

[0034] When the wrench body 1 is fitted into the workpiece, workpieces of different sizes can lift up the corresponding number of adjusting pieces 21 according to their size. Since multiple adjusting pieces 21 are axially stacked in the jaw groove 111 and supported by the baffle 12 which has the function of supporting and limiting reverse displacement, after the workpiece lifts up some adjusting pieces 21, the remaining adjusting pieces 21 that are not lifted will form a clamping space that matches the size of the workpiece. This realizes adaptive adjustment for workpieces of different sizes, which can effectively improve the versatility of the wrench, so that one wrench can be adapted to workpieces of various sizes, eliminating the need to frequently change wrenches of different specifications and improving work efficiency.

[0035] In this embodiment, more specifically, the tail end of the adjusting plate 21 is provided with an arc-shaped surface 211 within the jaw groove 111. When the adjusting plate 21 is lifted by the workpiece, its tail-end arc-shaped surface 211 abuts against the baffle 12. Due to the design of the arc-shaped surface 211, the rotation of the adjusting plate 21 is smoother and more fluid during the contact process between the adjusting plate 21 and the baffle 12, reducing the jamming and wear between the adjusting plate 21 and the baffle 12 during the lifting process. At the same time, the abutment method between the arc-shaped surface 211 and the baffle 12 can better disperse the force from the workpiece on the adjusting plate 21, avoiding excessive local force on the adjusting plate 21 and damage, ensuring the stability and reliability of the adjusting plate 21 when adapting to workpieces of different sizes. This allows the adaptive adjustable wrench to more accurately form a matching clamping space according to the workpiece size, improving the performance and lifespan of the wrench.

[0036] In this embodiment, more specifically, the wrench body 1 also includes a handle portion 13. The tail end of the handle portion 13 is provided with a connecting hole 131 for easy carrying. The front end of the handle portion 13 is integrally formed with the jaw portion 11, which can enhance the connection strength and stability between the two and prevent the handle portion 13 and the jaw portion 11 from becoming loose or separating due to force during use. This ensures the reliability of the overall structure of the movable wrench and makes the operation safer and smoother.

[0037] In this embodiment, more specifically, a through hole 112 is provided on one side of the jaw portion 11, and a threaded hole 113 is provided on the inner wall of the jaw groove 111. The fastener 22 is a screw, the screw of which passes through the through hole 112 and the tail ends of multiple adjusting pieces 21 in sequence. The tail end of the adjusting piece 21 is provided with a rotating hole 214, and the screw passes through the rotating hole 214 and is threadedly connected to the threaded hole 113. This connection method allows the adjusting pieces 21 to be movably installed in the jaw groove 111. When the wrench body 1 is fitted into the workpiece, the workpiece pushes up a corresponding number of adjusting pieces 21. Since the adjusting pieces 21 are movable in the jaw groove 111 through this screw connection method, it is ensured that the adjusting pieces 21 can flexibly respond to changes in workpiece size. Moreover, the threaded connection between the screw and the threaded hole 113 has good stability, ensuring that the adjusting pieces 21 will not easily detach from the jaw groove 111 during the movement. The adjusting pieces 21 that are not pushed up can stably form a clamping space that matches the size of the workpiece, realizing effective clamping of workpieces of different sizes.

[0038] In this embodiment, more specifically, the connection between the fastener 22 and the inner wall of the threaded hole 113 is coated with thread-locking adhesive. The thread-locking adhesive has adhesive and curing properties, and after application, it can fill the tiny gap between the fastener 22 and the inner wall of the threaded hole 113, making the two tightly bonded. When the wrench vibrates during operation or is subjected to external force, the thread-locking adhesive can prevent the fastener 22 from loosening or falling off, ensuring the stable installation of the adaptive adjustment component 2, and thus ensuring the stability and reliability of the entire adaptive adjustable wrench during use.

[0039] In this embodiment, more specifically, the rotating ends of the fastener 22 and the multiple adjusting plates 21 are coated with a self-lubricating coating to reduce friction. The self-lubricating coating can continuously provide lubrication during the rotation of the adjusting plates 21, reducing the direct contact and frictional resistance between the adjusting plates 21 and the fastener 22. When the wrench body 1 is inserted into the workpiece, causing the adjusting plates 21 to be lifted and rotated, this low-friction rotation process is smoother. This not only reduces the wear of the adjusting plates 21 and the fastener 22 and extends their service life, but also makes the adjusting plates 21 more sensitive and efficient in adapting to workpieces of different sizes, and can more quickly and accurately form a clamping space that matches the size of the workpiece.

[0040] The implementation principle of an adaptive adjustable wrench in this application embodiment is as follows: the design of the adaptive adjustment component 2 solves the problems of high cost, inconvenience in carrying, and inaccurate adjustment of traditional wrenches; multiple stacked adjustment plates 21 can automatically adjust according to the size of the workpiece to form a clamping space that matches the workpiece; the one-piece molded wrench body 1 and the tight connection method ensure the durability of the wrench; compared with traditional wrenches, it can better adapt to workpieces of different sizes, improve work efficiency, reduce maintenance costs, and is a more practical and efficient tool.

[0041] Example 2 refer to Figure 6 The difference between this embodiment and embodiment one is that: the contact surfaces of multiple adjusting plates 21 with the workpiece are provided with anti-slip teeth 212. When the wrench clamps the workpiece, the anti-slip teeth 212 can increase the friction between the adjusting plate 21 and the workpiece surface, effectively preventing relative sliding between the adjusting plate 21 and the workpiece during operation, thereby improving the stability and reliability of the wrench clamping the workpiece, so that the operator can operate the workpiece more stably when using this adaptive adjustable wrench, and avoid operational errors or damage to the workpiece due to slippage.

[0042] Example 3 refer to Figure 7The difference between this embodiment and Embodiment 1 is that: magnetic suction plates 213 are provided on the contact surfaces of multiple adjusting plates 21 and the workpiece to increase contact stability. The magnetic suction plates 213 are magnetically attracted to the end of the workpiece. When the wrench body 1 is fitted into the workpiece, the magnetic suction plates 213 will generate a magnetic attraction with the end of the workpiece. This magnetic attraction can enhance the tightness of the connection between the adjusting plates 21 and the workpiece, effectively preventing relative sliding or shaking between the workpiece and the adjusting plates 21 during operation, thereby greatly increasing the stability of the contact between the adjusting plates 21 and the workpiece, so that the wrench can more reliably clamp and operate the workpiece during use.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adaptive adjustable wrench, characterized in that, include: The wrench body (1) includes a jaw portion (11), the jaw portion (11) being provided with a working jaw groove (111), and a baffle (12) being provided at the bottom end of the jaw portion (11) corresponding to the jaw groove (111); and An adaptive adjustment component (2) is rotatably disposed in the jaw groove (111) for adapting to and restricting the workpiece. The adaptive adjustment component (2) includes a plurality of adjustment pieces (21) axially stacked in the jaw groove (111) and fasteners (22) locked on the jaw portion (11). The plurality of adjustment pieces (21) are movably mounted in the jaw groove (111) by the fasteners (22). The plurality of adjustment pieces (21) are disposed above the baffle (12), and the baffle (12) is used to support the plurality of adjustment pieces (21) and restrict their reverse displacement. When the wrench body (1) is inserted into the workpiece, the workpiece lifts up a corresponding number of the adjusting pieces (21) according to its size, and the remaining adjusting pieces (21) that are not lifted up form a clamping space that matches the size of the workpiece.

2. The adaptive adjustable wrench according to claim 1, characterized in that: The tail end of the adjusting plate (21) is provided with an arc-shaped surface (211) in the jaw groove (111). When the adjusting plate (21) is lifted by the workpiece, the arc-shaped surface (211) at its tail end abuts against the baffle (12).

3. The adaptive adjustable wrench according to claim 1, characterized in that: The contact surfaces of the multiple adjustment plates (21) with the workpiece are provided with anti-slip serrations (212).

4. The adaptive adjustable wrench according to claim 1, characterized in that: A magnetic absorbing plate (213) is provided on the contact surface between the multiple adjustment plates (21) and the workpiece to increase contact stability, and the magnetic absorbing plate (213) is magnetically attracted to the end of the workpiece.

5. An adaptive adjustable wrench according to claim 1, characterized in that: The wrench body (1) also includes a handle (13), the tail end of which is provided with a connecting hole (131) for easy carrying, and the front end of the handle (13) is integrally formed with the jaw (11).

6. The adaptive adjustable wrench according to claim 1, characterized in that: A through hole (112) is provided on one side of the jaw (11), and a threaded hole (113) is provided on the inner wall of the jaw groove (111). The fastener (22) is a screw, whose screw passes through the through hole (112) and the tail ends of multiple adjusting pieces (21) in sequence, and is threadedly connected to the threaded hole (113).

7. An adaptive adjustable wrench according to claim 6, characterized in that: The fastener (22) is coated with thread-fastening adhesive at the connection between it and the inner wall of the threaded hole (113).

8. An adaptive adjustable wrench according to claim 6, characterized in that: The fasteners (22) and the rotating ends of the plurality of adjusting pieces (21) are coated with a self-lubricating coating to reduce friction.

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