Monkey wrench

Abstract

The utility model relates to a monkey wrench which comprises a handle and a worm gear and further comprises an abutting portion and a shifting portion, and the abutting portion is arranged on the handle in a sliding mode and located on one side of the worm gear. The shifting part is arranged on the handle and has a first state and a second state which can be manually switched, in the first state, the shifting part abuts against the position between the abutting part and the handle, and in the second state, the shifting part, the abutting part and the handle are kept not abutting against each other. When the wrench is adjusted to the first state of the shifting part, the abutting part can extrude the worm gear so as to achieve the locking effect of the worm gear, so that rotation of the worm gear in the working process can be prevented, the opening of the wrench is kept fixed, and compared with the structure in the prior art, the wrench has the advantages of being simple in structure and convenient to use. According to the wrench, the stability of the size of the opening in the working process of the wrench can be guaranteed, when the opening needs to be adjusted, the wrench is switched to the second state of the shifting part, and therefore the practical effect of the wrench is embodied.

Description

Technical Field

[0001] This utility model belongs to the field of hardware tool technology, specifically an adjustable wrench. Background Technology

[0002] Adjustable wrenches, compared to fixed wrenches, allow for arbitrary adjustment of the opening size, making them more convenient to carry and more versatile. Figure 1 As shown, in the prior art, an adjustable wrench consists of a handle, a fixed clamp block integrally formed on the handle, a movable clamp block movably set on the handle, and a worm gear. When the worm gear is turned, the movable clamp block is moved by the engagement of the spiral groove and the teeth, thereby adjusting the wrench opening.

[0003] The current structure also has the following drawbacks: during operation, if a person accidentally touches the worm gear with their finger, it can easily cause the worm gear to rotate, which can cause the opening size to change during operation and thus affect the use process. Therefore, the current structure still has room for further improvement. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the following technical problems existing in the prior art: When the worm gear is activated during operation, the opening size of the wrench can easily change, thus affecting its use. To solve this technical problem, this utility model provides the following technical solution:

[0006] An adjustable wrench includes a handle and a worm gear, the worm gear being rotatably mounted on the handle, and further includes an abutment portion and a lever portion, wherein:

[0007] The contact part is slidably disposed on the handle and located on one side of the worm gear;

[0008] The actuating part is disposed on the handle and has a first state and a second state that can be manually switched. In the first state, the actuating part is pressed against the contact part and the handle. In the second state, the actuating part is not pressed against the contact part and the handle.

[0009] As a preferred technical solution for an adjustable wrench, the worm gear, the contact part, and the actuating part are distributed sequentially along the direction indicated by the axis of the worm gear, and the contact part acts on one end of the worm gear.

[0010] As a preferred technical solution for an adjustable wrench, the actuating part includes a first movable block and a second movable block, the first movable block being slidably disposed on the handle, and the second movable block being threadedly engaged with the first movable block.

[0011] As a preferred technical solution for an adjustable wrench, the contact part includes a first contact plate, a sandwich plate and a second contact plate arranged in sequence, wherein the sandwich plate is a flexible structure.

[0012] As a preferred technical solution for an adjustable wrench, the first contact plate is used to contact one end of the worm gear, and both the end face of the worm gear and one side of the first contact plate have a rough surface structure.

[0013] As a preferred technical solution for an adjustable wrench, the second movable block is used to contact the second contact plate, and both one side of the second contact plate and one side of the second movable block have a smooth surface structure.

[0014] As a preferred technical solution for an adjustable wrench, a detachable sleeve is fixedly provided on the handle, the abutment and the first movable block are slidably sleeved on the sleeve, the handle is provided with a mounting hole, one end of the worm gear is inserted into the mounting hole and forms a rotational engagement.

[0015] As a preferred technical solution for an adjustable wrench, the sleeve includes an integrally connected load-bearing section and a stabilizing section. The load-bearing section has a non-circular cross-section. The contact part and the first movable block are both sleeved on the load-bearing section. The stabilizing section has a circular cross-section. The other end of the worm gear is constructed with a mating hole, which is inserted into the stabilizing section to form a rotational engagement.

[0016] As a preferred embodiment of an adjustable wrench, the handle is provided with an externally extending mounting hole for accommodating the sleeve, and the handle is provided with a locking bolt that acts on the sleeve.

[0017] As a preferred technical solution for an adjustable wrench, one end of the sleeve is flush with the outer periphery of the handle and has a groove.

[0018] The beneficial effects of the adjustable wrench provided by this utility model are as follows: when adjusted to the first state of the actuating part, it is pressed between the contact part and the handle, thereby achieving the squeezing of the worm gear by the contact part to achieve the locking effect of the worm gear, thus preventing the worm gear from rotating during operation and keeping the wrench opening fixed. Therefore, compared with the structure of the prior art, this utility model can ensure the stability of the wrench opening size during operation. When it is necessary to adjust the opening, simply switch to the second state of the actuating part, thus demonstrating the practical effect of this utility model. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a diagram illustrating the existing technology structure.

[0021] Figure 2 This is a perspective view of one embodiment of the present utility model.

[0022] Figure 3 For about Figure 2 Another perspective view.

[0023] Figure 4 For about Figure 1 A three-dimensional vertical cross-section diagram of the structure shown in the middle section.

[0024] Figure 5 For about Figure 4 A cross-sectional view.

[0025] Figure 6 For about Figure 1 A breakdown diagram of the structure shown.

[0026] Figure 7 This is a schematic diagram of the structure of the contact part described in an embodiment of this utility model.

[0027] Figure 8 This is a schematic diagram of the sleeve rod described in an embodiment of the present utility model.

[0028] Reference numerals: 1. Handle; 2. Worm gear; 3. Abutting part; 301. First contact plate; 302. Sandwich plate; 303. Second contact plate; 4. Actuating part; 401. First movable block; 402. Second movable block; 5. Sleeve rod; 501. Bearing section; 502. Stabilizing section; 6. Mounting hole; 7. Butt joint hole; 8. Assembly hole; 9. Locking bolt; 10. Groove; 11. Paddle. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0032] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0033] Reference Figure 2-5 One embodiment of this utility model provides an adjustable wrench, including a handle 1, a fixed clamping block constructed on the handle 1, a movable clamping block slidably disposed on the handle 1, and a worm gear 2. The worm gear 2 is rotatably disposed on the handle 1 and forms a toothed engagement with the movable clamping block. This utility model also includes an abutting part 3 and a turning part 4. Specifically:

[0034] The contact part 3 is slidably disposed on the handle 1 and located on one side of the worm gear 2, so as to ensure that it can contact the worm gear 2 during its movement, and at the same time, it can release the contact.

[0035] The actuating part 4 is disposed on the handle 1 and has a first state and a second state that can be manually switched. In the first state, the actuating part 4 is pressed against the contact part 3 and the handle 1, so that the other side of the contact part 3 is pressed against the worm gear 2. In the second state, the actuating part 4 is not pressed against the contact part 3 and the handle 1.

[0036] Based on the above, in this utility model, when the wrench is in use, the actuating part 4 is adjusted to the first state, and the abutting part 3 is pressed against one side of the worm gear 2, thereby locking the worm gear 2. Through contact friction, the worm gear 2 cannot rotate, thus preventing the worm gear 2 from rotating when the finger touches it, and keeping the wrench opening size in a fixed state. When it is necessary to adjust the wrench opening size, the actuating part 4 is adjusted to the second state, and the abutting part 3 releases its abutment against the worm gear 2, so that the worm gear 2 can be rotated. This utility model, by setting a switchable first state and a second state, ensures that the worm gear 2 can be locked while also taking into account the actual use effect.

[0037] Furthermore, refer to Figure 2-5 Regarding the placement of some components on the handle 1 in this utility model, specifically, the worm gear 2, the contact part 3, and the actuating part 4 are arranged sequentially along the direction indicated by the axis of the worm gear 2, so that when the contact part 3 forms a pressing effect on the worm gear 2, it ultimately abuts against one end of the worm gear 2. This structural design can reduce the space occupied, thereby ensuring a simple appearance.

[0038] Furthermore, refer to Figure 3-6 The actuating part 4 includes a first movable block 401 and a second movable block 402. The first movable block 401 is slidably disposed on the handle 1 and can only move linearly on the handle 1. The second movable block 402 is threadedly engaged with the first movable block 401. When the second movable block 402 is actuated, the second movable block 402 and the first movable block 401 form relative movement along the thread axis, that is, moving away from each other or moving closer to each other. When moving away from each other, due to the increase in the overall length of the actuating part 4, the first movable block 401 abuts against the handle 1, and the second movable block 402 will squeeze the abutting part 3, so that the abutting part 3 presses against the worm gear 2. Relying on the friction of the contact surface, the worm gear 2 cannot rotate under the pressure of the abutting part 3, thereby achieving the locking effect. When the first movable block 401 and the second movable block 402 move closer to each other, the abutting relationship is released, and the worm gear 2 can rotate normally to realize the adjustment of the wrench opening.

[0039] To facilitate the prying process of the second movable block 402, a paddle 11 is constructed on the second movable block 402, so that when the second movable block 402 is rotated, the paddle 11 facilitates the application of force by the fingers. Figure 2 The image shows the locked state of the worm gear 2, i.e., the first state. Regarding the specific configuration of the thread parameters here, in... Figure 2Based on the above, when the lever 11 is moved upward to about 90 degrees, the contraction distance between the first movable block 401 and the second movable block 402 is sufficient to release the locking state of the worm gear 2, that is, to reach the second state, thereby controlling the rotation angle of the second movable block 402 within a reasonable range for practical use.

[0040] Furthermore, refer to Figure 2-6 Regarding the installation method of the contact part 3, the first movable block 401, and the second movable block 402, specifically, a detachable sleeve rod 5 is fixedly provided on the handle 1. The geometric center of the contact part 3 and the first movable block 401 are both through structures, and they are slidably sleeved on the sleeve rod 5 to meet the configuration of the first movable block 401 and the contact part 3 during the linear movement process on the wrench. Regarding the installation method of the worm gear 2, specifically, the handle 1 is constructed with a mounting hole 6. One end of the worm gear 2 is inserted into the mounting hole 6. When fully inserted, the worm gear 2 and the mounting hole 6 form a rotational engagement, thereby realizing the installation of the worm gear 2 on the handle 1. The other end of the worm gear 2 is limited by the end of the sleeve rod 5 to ensure that the worm gear 2 will not detach from the mounting hole 6.

[0041] Based on this, when the sleeve 5 is removed, the contact part 3, the first movable block 401, and the second movable block 402 can be directly removed from the wrench. Then, the worm gear 2 can be pulled out from the mounting hole 6, thus achieving removal. Similarly, when assembling this utility model, the positions of the above components are arranged in the reverse order, and the sleeve 5 is installed to complete the assembly of the entire wrench. This structural design ensures the ease of actual assembly of this utility model, thereby reducing manufacturing difficulty and controlling production costs.

[0042] Furthermore, refer to Figure 3 , Figure 4 as well as Figure 8 The sleeve 5 includes an integrally connected bearing section 501 and a stabilizing section 502. The bearing section 501 has a non-circular cross-section, which can be rectangular or triangular, etc. The abutting part 3 and the first movable block 401 are both sleeved on the bearing section 501. The non-circular cross-section ensures that the abutting part 3 and the first movable block 401 can only move linearly on the sleeve 5 and cannot rotate. The stabilizing section 502 has a circular cross-section. The other end of the worm gear 2 is constructed with a mating hole 7. The hole groove is cylindrical. The mating hole 7 and the stabilizing section 502 are also plugged in. When fully plugged in, the two form a rotational fit relationship. Thus, the structure of the sleeve 5 further increases the stability of the worm gear 2 when it is rotated on the wrench.

[0043] Furthermore, refer to Figure 3-6Regarding the installation method of the sleeve rod 5, specifically, the handle 1 has an assembly hole 8 extending to the outside, the shape of which is adapted to the sleeve rod 5 and used to accommodate the sleeve rod 5. The handle 1 is equipped with a locking bolt 9 that acts on the sleeve rod 5. When installing the sleeve rod 5, the sleeve rod 5 is inserted into the assembly hole 8 and the locking bolt 9 is tightened. Similarly, when disassembling the sleeve rod 5, the locking bolt 9 is removed by reversing the operation, and the sleeve rod 5 is pulled out. This structure further ensures the convenience of assembling the sleeve rod 5 on the handle 1, thereby further simplifying the overall assembly difficulty.

[0044] Furthermore, refer to Figure 3 , Figure 6 as well as Figure 8 One end of the sleeve rod 5 is flush with the outer periphery of the handle 1, and the end is also constructed with a groove 10, so that when the locking bolt 9 is removed, the sleeve rod 5 can be easily pulled out from the assembly hole 8 through the groove 10, thereby further reducing the difficulty of assembly.

[0045] Furthermore, refer to Figure 4-7 Regarding the structure of the abutment part 3, specifically, it can be designed to include a first contact plate 301, a sandwich plate 302, and a second contact plate 303 stacked sequentially, which are fixedly connected in sequence. The sandwich plate 302 is a flexible structure, such as a rubber plate or a silicone plate. The first contact plate 301 and the second contact plate 303 are both rigid structures. Through the cooperation of the second sandwich plate 302, when the entire abutment part 3 is squeezed too tightly, the flexible structure of the sandwich plate 302 allows the abutment part 3 to form a yielding compression, thereby protecting the threaded structure between the first movable block 401 and the second movable block 402.

[0046] Furthermore, refer to Figure 4 and Figure 5 The first contact plate 301 is used to contact one end of the worm gear 2. The end face of the worm gear 2 and one side of the first contact plate 301 are both rough surface structures, which can increase the friction between the worm gear 2 and the contact part 3 when they come into contact, thereby increasing the locking effect on the worm gear 2.

[0047] Furthermore, refer to Figure 4 and Figure 5 The second movable block 402 is used to contact the second contact plate 303. Both the second contact plate 303 and the second movable block 402 have a smooth surface structure, which can reduce the resistance that the second movable block 402 experiences during rotation due to the contact part 3, so as to facilitate the switching of states.

[0048] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An adjustable wrench, characterized in that: It includes a handle (1) and a worm gear (2), the worm gear (2) being rotatably mounted on the handle (1), and also includes an abutment part (3) and a prying part (4), and: The contact part (3) is slidably disposed on the handle (1) and located on one side of the worm gear (2); The actuating part (4) is disposed on the handle (1) and has a first state and a second state that can be manually switched. In the first state, the actuating part (4) is pressed against the contact part (3) and the handle (1). In the second state, the actuating part (4) is not pressed against the contact part (3) and the handle (1).

2. The adjustable wrench according to claim 1, characterized in that: The worm gear (2), the contact part (3) and the actuating part (4) are distributed in sequence along the direction indicated by the axis of the worm gear (2), and the contact part (3) acts on one end of the worm gear (2).

3. The adjustable wrench according to claim 2, characterized in that: The actuating part (4) includes a first movable block (401) and a second movable block (402). The first movable block (401) is slidably disposed on the handle (1), and the second movable block (402) is threadedly engaged with the first movable block (401).

4. The adjustable wrench according to claim 3, characterized in that: The contact part (3) includes a first contact plate (301), a sandwich plate (302) and a second contact plate (303) arranged in sequence, and the sandwich plate (302) is a flexible structure.

5. The adjustable wrench according to claim 4, characterized in that: The first contact plate (301) is used to contact one end of the worm gear (2), and both the end face of the worm gear (2) and one side of the first contact plate (301) are rough surface structures.

6. The adjustable wrench according to claim 4, characterized in that: The second movable block (402) is used to contact the second contact plate (303), and both the second contact plate (303) and the second movable block (402) have a smooth surface structure.

7. The adjustable wrench according to claim 3, characterized in that: A detachable sleeve rod (5) is fixedly provided on the handle (1). The abutment part (3) and the first movable block (401) are slidably sleeved on the sleeve rod (5). The handle (1) is provided with a mounting hole (6). One end of the worm gear (2) is inserted into the mounting hole (6) and forms a rotational engagement.

8. The adjustable wrench according to claim 7, characterized in that: The sleeve (5) includes an integrally connected bearing section (501) and a stabilizing section (502). The bearing section (501) has a non-circular cross-section. The contact part (3) and the first movable block (401) are both sleeved on the bearing section (501). The stabilizing section (502) has a circular cross-section. The other end of the worm gear (2) is provided with a mating hole (7), which is inserted into the stabilizing section (502) to form a rotational fit.

9. The adjustable wrench according to claim 7, characterized in that: The handle (1) has an externally extending mounting hole (8) for receiving the sleeve (5), and the handle (1) is provided with a locking bolt (9) acting on the sleeve (5).

10. The adjustable wrench according to claim 9, characterized in that: One end of the sleeve (5) is flush with the outer periphery of the handle (1) and has a groove (10).

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