Monkey wrench

Abstract

The utility model discloses a monkey wrench which comprises a fixed clamping jaw, a movable clamping jaw and an adjusting assembly, the fixed clamping jaw is connected with a holding part, a guide sliding groove in clearance fit with one end of the movable clamping jaw is formed in the fixed clamping jaw, and the adjusting assembly is matched with the movable clamping jaw to drive the movable clamping jaw to slide along the guide sliding groove. An elastic piece is arranged between the guide sliding groove and the movable clamping jaw so as to reduce or fill the gap between the guide sliding groove and the movable clamping jaw. The adjustable spanner has the advantages that noise generated when the adjustable spanner is adjusted is reduced; the noise generated when the monkey wrench is used is reduced; the application reliability of the monkey wrench is improved; and the clamping stability of the monkey wrench is ensured.

Description

Technical Field

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

[0002] An adjustable wrench consists of a fixed jaw and a movable jaw that slides relative to the fixed jaw. When the movable jaw moves toward the fixed jaw, the adjustable wrench clamps; when the movable jaw moves away from the fixed jaw, the adjustable wrench releases. The fixed jaw typically has a groove to accommodate the movable jaw, and the sidewalls of the groove serve as clamping parts on both sides of the movable jaw. Due to the sliding requirements of the movable and fixed jaws, there is usually a gap between the movable jaw and its clamping parts on both sides. This makes it easy for the movable jaw to generate oscillating noise along the width of the gap during movement.

[0003] To address the noise issue associated with adjustable wrenches, the following solutions have been proposed.

[0004] For example, in Chinese patent literature, the utility model entitled "A Helical Tooth Self-Locking Adjustable Wrench" with patent number CN2016208269773, which was authorized and announced on January 4, 2017, attempts to reduce noise by changing straight teeth to helical teeth to increase the meshing tightness of the movable jaw and the adjusting screw.

[0005] For example, the utility model patent entitled "Adjustable Wrench" with patent number CN2014201498471, which was authorized and announced on December 17, 2014, uses an auxiliary lubrication mechanism to lubricate the engagement position of the movable jaw and the adjusting screw, thereby reducing noise.

[0006] The shortcomings of existing technologies are that using helical teeth to increase the contact area can easily lead to wear of the adjusting screw, and the structure of using a lubrication mechanism is too costly. In addition, existing technologies use the engagement of the movable jaw and the adjusting screw to reduce noise, but in actual application, the noise of the movable jaw mainly comes from the swinging collision between it and the side clamping part. Existing technologies lack a solution to reduce this collision noise, and the noise reduction effect is unreliable.

[0007] Clearly, it is essential to design a low-noise adjustable wrench that reduces noise from the moving jaws and their side gripping parts. Summary of the Invention

[0008] In order to overcome the shortcomings of existing adjustable wrenches, which generate a lot of noise due to the swinging collision between the movable jaw and its clamping part during adjustment, this utility model provides an adjustable wrench that can reduce the noise generated during the movement of the movable jaw.

[0009] To achieve the above objectives, the present invention adopts the following technical solution.

[0010] An adjustable wrench includes a fixed jaw, a movable jaw, and an adjusting component. The fixed jaw is connected to a gripping component. The fixed jaw has a guide groove that is clearance-fitted to one end of the movable jaw. The adjusting component cooperates with the movable jaw to drive the movable jaw to slide along the guide groove. An elastic element is provided between the guide groove and the movable jaw to reduce or fill the gap between the guide groove and the movable jaw.

[0011] The movable jaw moves relative to the fixed jaw along the guide groove via the adjusting component, thereby clamping and releasing the adjustable wrench. To ensure that the movable jaw can move relative to the fixed jaw, the guide grooves in the movable jaw and the fixed jaw are connected with a gap. The gripping component is the gripping part of the adjustable wrench. The gripping component forms a force-saving lever relative to the clamping part of the adjustable wrench, making it convenient to use the adjustable wrench.

[0012] Due to the gap at the connection between the guide slide and the movable jaw, the movable jaw is prone to swinging and colliding with the guide slide during movement. This results in noise and deformation at the point of impact, negatively affecting the wrench's appearance, lifespan, and user experience. This application incorporates an elastic element between the guide slide and the movable jaw to reduce or fill the gap, thereby decreasing the wrench's swing amplitude and speed. This reduces or even eliminates the swinging collision between the wrench and the guide slide, and also reduces the noise generated during the movement of the movable jaw relative to the guide slide.

[0013] The elastic element fills the gap between the movable jaw and the guide groove. When the adjustable wrench is moved as a whole, the movable jaw and the guide groove will not easily swing or collide. Even if swinging or collision occurs, the noise is reduced, effectively improving the user experience of the adjustable wrench.

[0014] The elastic element provides elastic restraint to the movable jaw, keeping it in a relatively stable position relative to the fixed jaw. When the adjustable wrench is in use, the clamping positions of the movable and fixed jaws are relatively stable, making it easier to use with fasteners and facilitating the use of the adjustable wrench. It is especially suitable for operation situations with limited visibility, further improving the user experience of the adjustable wrench.

[0015] Preferably, the movable jaw has a receiving portion, and the elastic element is disposed in the receiving portion and extends out of the receiving portion to fill the gap between the guide groove and the movable jaw. The receiving portion constrains and positions the elastic element, ensuring its reliable placement. The pressure of the guide groove on the elastic element is perpendicular to the sliding direction of the elastic element, making it difficult for the elastic element to dislodge. Typically, one end of the adjustable wrench is slidably disposed within the guide groove, which has a relatively large material volume. To save material, the length of the adjustable wrench in the sliding direction is less than the length of the guide groove. By placing the elastic element through the receiving portion, the elastic element moves with the adjustable wrench, allowing for a smaller structure for the elastic element while reducing noise when the adjustable wrench moves relative to the fixed wrench.

[0016] Preferably, the receiving part is a through hole, and the elastic element extends from both ends of the through hole to cooperate with the opposite groove wall of the guide slide. The elastic element is fixed or elastically tightened with the receiving part. The elastic element is embedded in the receiving part and extends from both ends of the receiving part, providing elastic pressure to the groove walls of the guide slide on both sides of the movable jaw. When the elastic element is fixed with the receiving part, the elastic element and the receiving part move in the same direction in the width of the guide slide, and the elastic element provides a stable elastic force to both sides of the movable jaw. When the elastic element is elastically tightened with the receiving part, the elastic element and the receiving part are not fixed. When the movable jaw swings, if the swing speed is too large, the receiving part and the elastic element can easily separate due to friction. The friction acts as a damping resistance when the movable jaw swings, thereby reducing the swing noise when the movable jaw slides along the guide slide.

[0017] Preferably, the elastic element is spherical in shape. This facilitates manufacturing and installation. The fit between the elastic element and the sidewall of the guide groove is a point contact, resulting in a small contact area. This reduces the resistance generated by friction between the elastic element and the guide groove when the movable gripper moves, thus facilitating the movement of the movable gripper.

[0018] Preferably, the guide groove includes a cavity, a neck, and an opening. The neck is located between the cavity and the opening. The dimension of the neck in the opening direction of the opening is smaller than the dimension of the cavity in the opening direction. One end of the movable gripper fits the shape of the guide groove. One end of the movable gripper extends into the guide groove, passing through the opening, neck, and cavity. Because the dimension of the neck is smaller than that of the cavity, the neck limits the movable gripper, ensuring that the movable gripper can only disengage from both ends of the guide groove along its length, thus guaranteeing the reliability of the movable gripper.

[0019] Preferably, the elastic element is positioned relative to the groove neck of the movable gripper so that it engages with the groove neck. The width of the groove neck is smaller than the width of the groove cavity, and it is closer to the groove opening than the groove cavity. Compared to an elastic element configured to engage with the groove cavity, this configuration has lower installation costs and higher reliability in reducing oscillation noise.

[0020] Preferably, the cavity wall is cylindrical, and the end of the movable jaw has an arc surface that mates with the cavity wall. The mating of the movable jaw and the arc surface of the cavity allows for a certain rotational allowance relative to the guide groove, preventing excessive rotational stress on the cavity from the movable jaw during wrench use, thus extending the wrench's lifespan. Furthermore, it reduces the likelihood of collision noise between the movable jaw and the cavity during jaw movement; noise is primarily concentrated at the neck and opening of the groove, where elastic elements reduce vibration, significantly decreasing the operating noise of the adjustable wrench.

[0021] Preferably, the adjusting assembly includes a connecting shaft and an adjusting screw. The adjusting screw is sleeved on the outside of the connecting shaft. The fixed clamp has a hollow portion to accommodate the rotation of the adjusting screw around the axis of the connecting shaft. The adjusting screw protrudes from the hollow portion to the outside of the fixed clamp. The movable clamp has adjusting teeth that mesh with the adjusting screw, so that when the adjusting screw rotates, it drives the movable clamp to slide along the guide groove. The adjusting screw protruding from the hollow portion to the outside of the fixed clamp facilitates the user's operation of the adjusting screw, allowing the adjusting screw to rotate and thus using the adjusting teeth to drive the movable clamp to move, ensuring the usability of the movable clamp.

[0022] Preferably, the hollow section is provided with a resilient reset member that pushes the adjusting screw in the direction of the connecting shaft axis. The resilient reset member can push the adjusting screw to one side of the hollow section, preventing the adjusting screw from moving around in the hollow section and reducing the noise that may be generated by the collision between the adjusting screw and the hollow section.

[0023] Preferably, the elastic reset element is a spring sleeved on the connecting shaft. This spring-sleeved design facilitates production.

[0024] Preferably, the adjusting screw has a stepped hole for abutting the elastic reset member. One end of the elastic reset member extends into the stepped hole and abuts against the stepped surface of the hole, while the other end abuts against the hollowed-out portion. The stepped hole positions one end of the elastic reset member, facilitating its assembly and improving its structural reliability during application.

[0025] Preferably, the adjusting teeth are equipped with an anti-disengagement part, which is located at the end of the movable jaw relative to the clamping direction of the fixed jaw. The anti-disengagement part prevents the adjusting teeth from rotating directly off the adjusting screw, ensuring the overall reliability of the adjustable wrench.

[0026] Preferably, the elastic reset element is located at one end of the adjusting screw corresponding to the clamping direction of the movable jaw. The force exerted by the elastic reset element on the adjusting screw keeps the adjusting screw at one end corresponding to the loosening direction of the movable jaw, reducing the impact of axial movement of the adjusting screw on the clamping action of the adjustable wrench. When the position of the adjusting screw is determined, the adjustable wrench remains in the maximum clamping position, avoiding uncertainty in the position of the movable jaw due to movement of the adjusting screw, which would affect the clamping stability of the adjustable wrench.

[0027] This utility model has the following beneficial effects: 1. Reduces the noise when adjusting the adjustable wrench; 2. Reduces the noise when using the adjustable wrench; 3. Improves the reliability of the adjustable wrench when used; 4. Ensures the clamping stability of the adjustable wrench. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of an adjustable wrench disclosed in one embodiment of the present utility model.

[0029] Figure 2 This is a schematic diagram of the structure of the movable gripper and the adjustment component in one embodiment of the present invention.

[0030] Figure 3 This is a schematic diagram of the internal structure of the adjustable wrench with the adjusting screw hidden in one embodiment of the present invention.

[0031] Figure 4 yes Figure 3 Enlarged diagram of point A in the middle.

[0032] Figure 5 This is an exploded view of the adjusting component in the movable wrench disclosed in one embodiment of the present invention.

[0033] Figure 6 This is a side view of the movable jaw and adjusting component cooperating in an adjustable wrench according to one embodiment of the present invention.

[0034] Figure 7 This is a schematic diagram of the structure of one end of the fixed claw in the movable wrench disclosed in one embodiment of this utility model.

[0035] In the figure; fixed gripper 1, fixed clamping surface 101, mounting part 102, gripping component 103, guide slide 104, groove cavity 105, groove neck 106, groove opening 107, hollow part 108;

[0036] Clamping area 2;

[0037] Adjustment component 3, connecting shaft 301, adjusting screw 302, elastic reset component 303, stepped hole 304;

[0038] Movable gripper 4, receiving part 401, elastic element 402, connecting end 403, connecting neck 404, movable clamping surface 405, anti-detachment part 406, adjusting teeth 407. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this utility model are intended to cover non-exclusive inclusion, such as a method or product that includes a series of technical features, not limited to those technical features explicitly listed, but also including other technical features that may be included in the method or product but not explicitly listed.

[0041] In the description of this utility model, it should be understood that the technical features defined by terms such as "first" and "second" which have a sequential concept are only for the purpose of clearly describing the defined technical features and making the defined technical features clearly distinguishable from other technical features, and do not represent that they are named in this way in actual implementation. Therefore, they should not be construed as limitations on this utility model.

[0042] The adjustable wrench disclosed in one embodiment of this utility model, such as Figures 1 to 7 As shown, it includes a fixed gripper 1, a movable gripper 4, and an adjustment component 3. The fixed gripper 1 is connected to a gripping component 103. The fixed gripper 1 has a guide groove 104 that is clearance-fitted to one end of the movable gripper 4. The adjustment component 3 cooperates with the movable gripper 4 to drive the movable gripper 4 to slide along the guide groove 104. An elastic element 402 is provided between the guide groove 104 and the movable gripper 4 to reduce or fill the gap between the guide groove 104 and the movable gripper 4.

[0043] The adjustable wrench has a clamping area 2 between the movable jaw 4 and the fixed jaw 1. The opposing sidewalls of the movable jaw 4 and the fixed jaw 1 in the clamping area 2 are responsible for clamping the wrench. The movable jaw 4 slides along the guide groove 104 via the adjusting component 3. When the movable jaw 4 moves towards the fixed jaw 1, the clamping area 2 shrinks, and the adjustable wrench performs its clamping function. When the movable jaw 4 moves away from the fixed jaw 1, the clamping area 2 expands, and the adjustable wrench releases. Because its clamping area 2 is adjustable, the adjustable wrench can accommodate workpieces of different sizes. Taking tightening a nut as an example, the distance between the opposing sidewalls of the movable jaw 4 and the fixed jaw 1 that perform the clamping function is relatively large, allowing the nut to enter the clamping area 2. Then, by adjusting the component 3, the movable jaw 4 slides along the guide groove 104 toward the fixed jaw 1 until the opposing sidewalls of the movable jaw 4 and the fixed jaw 1 press against the opposing sides of the nut. By operating the gripping component, the movable wrench rotates around the axis of the nut. The force on the gripping component is amplified by using the length of the gripping component as the lever arm, providing a larger force to tighten the nut.

[0044] Due to the gap at the connection between the guide slide 104 and the movable jaw 4, the movable jaw 4 is prone to swinging and colliding with the guide slide 104 during movement. This results in noise and deformation at the point of collision between the movable jaw 4 and the guide slide 104, negatively impacting the wrench's appearance, lifespan, and user experience. In this embodiment, an elastic element 402 is provided between the guide slide 104 and the movable jaw 4. The elastic element 402 reduces or fills the gap between the guide slide 104 and the movable jaw 4, reducing the swing amplitude and speed of the movable wrench. This reduces or even eliminates the swinging collision between the movable wrench and the guide slide 104, thereby reducing the noise generated by the movable jaw 4 during its movement relative to the guide slide 104 during adjustment.

[0045] In addition, the elastic element 402 fills the gap between the movable jaw 4 and the guide groove 104. When the adjustable wrench is moved and used as a whole, the movable jaw 4 and the guide groove 104 will not easily swing or collide. Even if swinging or collision occurs, the noise is reduced, effectively improving the user experience of the adjustable wrench.

[0046] The elastic element 402 provides elastic limiting for the movable jaw 4, keeping the movable jaw 4 in a relatively stable position relative to the fixed jaw 1. When the adjustable wrench is in use, the clamping positions of the movable jaw 4 and the fixed jaw 1 are relatively stable, making it easier to cooperate with fasteners and facilitating the use of the adjustable wrench. It is especially suitable for operation occasions with limited visibility, further improving the user experience of the adjustable wrench.

[0047] In the above embodiments, the fixed jaw 1 serves as a reference for using the adjustable wrench, while the movable jaw 4 moves relative to the fixed jaw 1. The gripping component is integrally formed with the fixed jaw 1, or is fixedly connected to or rotatably connected to the fixed jaw 1. When the gripping component is rotatably connected to the fixed jaw 1, it is preferable that the rotation axis of the gripping component is parallel to the opposing clamping sidewalls of the fixed jaw 1 and the movable jaw 4. In this embodiment, the gripping component uses a handle integrally formed with the fixed jaw 1.

[0048] The adjusting component 3, as the driving component for the sliding displacement of the movable gripper 4, includes two functions: movement adjustment and locking. For example, the structure of the adjusting component 3 is a threaded adjustment formed by the cooperation of a screw and a toothed block. The pressure application is reliable and it has the ability to adjust steplessly. The thread adopts a self-locking thread to ensure the locking ability after the adjusting component 3 is adjusted to the correct position. Another example is that the adjusting component 3 adopts a push rod with a limiting protrusion or groove on it to cooperate with the insertion locking mechanism for locking. It can be used with standard-sized fasteners.

[0049] As one embodiment of this utility model, an adjustable wrench is proposed, such as Figure 1 and Figure 2 As shown, the assembly includes a fixed gripper 1, a movable gripper 4, and an adjusting component 3. The fixed gripper 1 is connected to a gripping component 103. The fixed gripper 1 has a guide groove 104 that is clearance-fitted to one end of the movable gripper 4. The adjusting component 3 cooperates with the movable gripper 4 to drive the movable gripper 4 to slide along the guide groove 104. An elastic element 402 is provided between the guide groove 104 and the movable gripper 4 to reduce or fill the gap between the guide groove 104 and the movable gripper 4. The adjusting component 3 includes a connecting shaft 301 and an adjusting screw 302. The adjusting screw 302 is sleeved on the outside of the connecting shaft 301. The fixed gripper 1 has a hollow portion 108 that accommodates the adjusting screw 302 to rotate around the axis of the connecting shaft 301. The adjusting screw 302 is exposed from the hollow portion 108 to the outside of the fixed gripper 1. The movable gripper 4 has adjusting teeth 407 that mesh with the adjusting screw 302 to drive the movable gripper 4 to slide along the guide groove 104 when the adjusting screw 302 rotates. The connecting shaft 301 is rotatably or fixedly connected to the fixed clamp 1. When the connecting shaft 301 and the fixed clamp 1 are rotatably connected, the adjusting screw 302 is rotatably or fixedly connected to the connecting shaft 301. When the connecting shaft 301 and the fixed clamp 1 are fixedly connected, the adjusting screw 302 is rotatably connected to the connecting shaft 301. The adjusting screw 302 protrudes from the cutout 108 to the outside of the fixed clamp 1, allowing the user to easily operate the adjusting screw 302 with their fingers through the cutout 108. Rotating the adjusting screw 302 then uses the adjusting teeth 407 to move the movable clamp 4, ensuring the clamping of the adjustable wrench. To further ensure the stability of the adjustable wrench after clamping, the adjusting screw 302 uses a self-locking thread.

[0050] During the use of an adjustable wrench, the movement of the adjusting screw 302 not only causes noise but also makes the clamping action of the adjustable wrench unreliable. To ensure the reliable position of the adjusting screw 302 and reduce its movement, the adjustable wrench proposed in one embodiment of this utility model, based on the previous embodiment, further includes, for example... Figure 3 , Figure 4 and Figure 5 As shown, the hollowed-out portion 108 is provided with an elastic reset member 303 that pushes the adjusting screw 302 in the axial direction of the connecting shaft 301. The elastic reset member 303 can push the adjusting screw 302 to one side of the hollowed-out portion 108, preventing the adjusting screw 302 from moving around in the hollowed-out portion 108 and reducing the noise that may be generated by the collision between the adjusting screw 302 and the hollowed-out portion 108.

[0051] An elastic reset member 303 is disposed between the adjusting screw 302 and the hollow portion 108, such as an elastic washer abutting against both. To ensure the reliability of the elastic reset member 303 and reduce friction between the elastic reset member 303 and the adjusting screw 302 during application, for example, such as... Figure 4 and Figure 5 As shown, the elastic reset member 303 is a spring sleeved on the connecting shaft 301.

[0052] Furthermore, the adjusting screw 302 is provided with a stepped hole 304 for abutting the elastic reset member 303. One end of the elastic reset member 303 extends into the stepped hole 304 and abuts against the stepped surface of the stepped hole 304, while the other end of the elastic reset member 303 abuts against the hollow portion 108. The stepped hole 304 positions one end of the elastic reset member 303, facilitating the assembly of the elastic reset member 303 and improving the structural reliability of the elastic reset member 303 during application. In this embodiment, the elastic reset member 303 is located at one end of the adjusting screw 302 corresponding to the clamping direction of the movable jaw 4. The force exerted by the elastic reset member 303 on the adjusting screw 302 keeps the adjusting screw 302 at one end corresponding to the loosening direction of the movable jaw 4, reducing the impact of axial movement of the adjusting screw 302 on the clamping action of the movable wrench. When the position of the adjusting screw 302 is determined, the movable wrench remains at the maximum clamping position, avoiding the uncertainty of the position of the movable jaw 4 due to the positional movement of the adjusting screw 302, which would affect the clamping stability of the movable wrench.

[0053] As one embodiment of this utility model, an adjustable wrench is proposed, such as Figures 2 to 4As shown, the device includes a fixed gripper 1, a movable gripper 4, and an adjusting assembly 3. The fixed gripper 1 is connected to a gripping component 103. The fixed gripper 1 has a guide groove 104 that fits with one end of the movable gripper 4 with a clearance. The adjusting assembly 3 cooperates with the movable gripper 4 to drive the movable gripper 4 to slide along the guide groove 104. An elastic element 402 is provided between the guide groove 104 and the movable gripper 4 to reduce or fill the gap between them. The elastic element 402 is made of an elastic material such as silicone or rubber, possessing both elasticity and wear resistance. The elastic element 402 can be directly bonded to the movable gripper 4 or the guide groove 104. To improve the anti-detachment capability of the elastic element 402, in the movable wrench proposed in this embodiment, the movable gripper 4 has a receiving portion 401, and the elastic element 402 is disposed in the receiving portion 401 and extends beyond the receiving portion 401 to fill the gap between the guide groove 104 and the movable gripper 4. The receiving part 401 can be a groove, blind hole, or through hole, etc., which can limit the movement of the elastic element 402 in the moving direction of the movable jaw 4. The receiving part 401 achieves the constraint and positioning of the elastic element 402, and ensures the reliable setting of the elastic element 402. The pressure of the guide groove 104 on the elastic element 402 is perpendicular to the sliding direction of the elastic element 402, making it difficult for the elastic element 402 to fall out. Normally, one end of the adjustable wrench is slidably set in the guide groove 104. The guide groove 104 has a large material volume. From the perspective of saving material, the length of the adjustable wrench in the sliding direction is less than the length of the guide groove 104. By setting the elastic element 402 through the receiving part 401, the elastic element 402 moves with the adjustable wrench. This allows the elastic element 402 to have a smaller structure, thereby reducing the noise when the adjustable wrench moves relative to the fixed wrench.

[0054] For example, such as Figure 2 and Figure 6 As shown, the receiving portion 401 is a through hole, and the elastic element 402 extends from both ends of the through hole to cooperate with the opposite groove wall of the guide groove 104. The elastic element 402 is fixed or elastically tightened with the receiving portion 401. The elastic element 402 is embedded in the receiving portion 401 and extends from both ends of the receiving portion 401, which can exert elastic pressure on the groove walls of the guide groove 104 on both sides of the movable gripper 4. When the elastic element 402 is fixed with the receiving portion 401, the elastic element 402 and the receiving portion 401 move in the same direction in the width direction of the guide groove 104. The elastic element 402 provides a stable elastic force on both sides of the movable gripper 4. When the elastic element 402 and the receiving part 401 are elastically tightened, the elastic element 402 and the receiving part 401 are not fixed. When the movable gripper 4 swings, if the swing speed is too large, the receiving part 401 and the elastic element 402 can easily overcome the friction and separate. The friction is used as the shock absorption resistance when the movable gripper 4 swings, which reduces the swing noise when the movable gripper 4 slides along the guide groove 104.

[0055] In this embodiment, the elastic element 402 is spherical in shape. This facilitates manufacturing and installation. The elastic element 402 and the side wall of the guide groove 104 make point contact, resulting in a small contact area. This reduces the resistance generated by the friction between the elastic element 402 and the guide groove 104 when the movable gripper 4 moves, thus facilitating the movement of the movable gripper 4.

[0056] As a simple alternative to the above solution, the elastic element 402 can be ellipsoidal, cylindrical, or the like.

[0057] As one embodiment of this utility model, an adjustable wrench includes a fixed clamp 1, a movable clamp 4, and an adjusting component 3. The fixed clamp 1 is connected to a gripping component 103. The fixed clamp 1 is provided with a guide groove 104 that is clearance-fitted to one end of the movable clamp 4. The adjusting component 3 cooperates with the movable clamp 4 to drive the movable clamp 4 to slide along the guide groove 104. An elastic element 402 is provided between the guide groove 104 and the movable clamp 4 to reduce or fill the gap between the guide groove 104 and the movable clamp 4.

[0058] In this embodiment, as Figure 7 As shown, the fixed gripper 1 includes a first claw 101, a mounting portion 102, and a handle. The first claw 101 and the mounting portion 102 are arranged in an L-shape, creating a gap between them. The movable gripper 4 includes a second claw 405 and a connecting portion. A guide groove 104 is disposed within the mounting portion 102, and the connecting portion is slidably disposed within the mounting portion 102. The guide groove 104 includes a cavity 105, a neck 106, and an opening 107. The neck 106 is located between the cavity 105 and the opening 107. The dimension of the neck 106 in the opening direction of the opening 107 is smaller than the dimension of the cavity 105 in the opening direction of the opening 107. Figures 1 to 3 As shown, one end of the movable gripper 4, i.e., the connecting part, is shaped to fit the guide groove 104. The connecting part includes a connecting end 403 and a connecting neck 404, with the connecting neck 404 located between the second toe 405 and the connecting end 403. The connecting end 403 and the groove cavity 105 are in sliding fit, and the connecting neck 404 and the necking part are in sliding fit. A clamping area 2 is formed between the first toe 101 and the second toe 405, and the opposite sidewalls of the first toe 101 and the second toe 405 are clamping walls for the mating workpiece. The connecting part extends into the guide groove 104. Since the size of the groove neck 106 is smaller than that of the groove cavity 105, the groove neck 106 limits the movable gripper 4, ensuring that the movable gripper 4 can only disengage from both ends of the guide groove 104 along its length, thus guaranteeing the reliability of the movable gripper 4.

[0059] Furthermore, the adjusting tooth 407 is provided with an anti-disengagement part 406, which is located at one end of the movable jaw 4 relative to the clamping direction of the fixed jaw 1. For example, the anti-disengagement part 406 adopts a protrusion structure, which prevents the adjusting tooth 407 from rotating directly off the adjusting screw 302, thus ensuring the overall reliability of the adjustable wrench.

[0060] In this embodiment, the width of the groove neck 106 is smaller than the width of the groove cavity 105, and it is closer to the groove opening 107 than the groove cavity 105. In this embodiment, the elastic element 402 is positioned relative to the groove neck 106 by the movable gripper 4 so that the elastic element 402 engages with the groove neck 106. Compared to setting the elastic element 402 to engage with the groove cavity 105, the arrangement in this embodiment is less costly and has higher reliability in reducing oscillation noise.

[0061] The cross-section of the cavity 105 can be rectangular, rounded rectangular, or elliptical. To further reduce the noise of the adjustable wrench, the cavity wall of the cavity 105 is cylindrical, and the end of the movable jaw 4 has an arc surface that mates with the cavity wall of the cavity 105. The arc surface mates the movable jaw 4 with the cavity 105, allowing the movable jaw 4 to have a certain rotational margin relative to the guide groove 104. This prevents the rotational force on the movable jaw 4 from generating excessive rotational stress on the cavity 105 during the use of the adjustable wrench, thus extending the service life of the adjustable wrench. Furthermore, it makes it less likely for the movable jaw 4 to collide with the cavity 105 and generate noise. The noise is mainly concentrated at the neck 106 and the opening 107, and the elastic element 402 reduces the vibration at the neck 106 and the opening 107, thereby significantly reducing the noise of the adjustable wrench during use.

[0062] The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. An adjustable wrench, characterized in that, It includes a fixed gripper, a movable gripper, and an adjustment component. The fixed gripper is connected to a gripping component. The fixed gripper has a guide groove that is clearance-fitted to one end of the movable gripper. The adjustment component cooperates with the movable gripper to drive the movable gripper to slide along the guide groove. An elastic element is provided between the guide groove and the movable gripper to reduce or fill the gap between the guide groove and the movable gripper.

2. The adjustable wrench according to claim 1, characterized in that, The movable gripper has a receiving part, and an elastic element is disposed in the receiving part and extends out of the receiving part to fill the gap between the guide groove and the movable gripper.

3. The adjustable wrench according to claim 2, characterized in that, The receiving part is a through hole, and the elastic element extends from both ends of the through hole to cooperate with the opposite groove wall of the guide groove.

4. The adjustable wrench according to claim 1, characterized in that, The guide groove includes a cavity, a neck, and an opening. The neck is located between the cavity and the opening. The size of the neck in the opening direction is smaller than the size of the cavity in the opening direction. One end of the movable gripper matches the shape of the guide groove.

5. The adjustable wrench according to claim 4, characterized in that, The elastic element is located at the position of the movable jaw relative to the groove neck so that the elastic element engages with the groove neck.

6. The adjustable wrench according to any one of claims 1 to 5, characterized in that, The adjustment assembly includes a connecting shaft and an adjusting screw. The adjusting screw is sleeved on the outside of the connecting shaft. The fixed clamp has a hollow part that accommodates the adjustment screw to rotate around the axis of the connecting shaft. The adjusting screw is exposed from the hollow part to the outside of the fixed clamp. The movable clamp has adjusting teeth that mesh with the adjusting screw so that the movable clamp can slide along the guide groove when the adjusting screw rotates.

7. The adjustable wrench according to claim 6, characterized in that, The hollowed-out section is equipped with an elastic reset component that pushes the adjusting screw in the direction of the connecting shaft axis.

8. The adjustable wrench according to claim 7, characterized in that, The adjusting screw has a stepped hole, one end of the elastic reset member extends into the stepped hole and abuts against the stepped surface of the stepped hole, and the other end of the elastic reset member abuts against the hollow part.

9. The adjustable wrench according to claim 6, characterized in that, The adjusting teeth are provided with an anti-detachment part, which is located at one end of the movable gripper relative to the clamping direction of the fixed gripper.

10. The adjustable wrench according to claim 7, characterized in that, The elastic reset element is located at one end of the adjusting screw corresponding to the clamping direction of the movable jaw.

Images