A multifunctional wrench

Abstract

The present invention discloses a multifunctional wrench, which relates to the technical field of wrenches, and comprises a handle, wherein a movable jaw assembly is arranged at one end of the handle, and a nut sleeve is arranged at the other end, wherein the nut sleeve is provided with a reducing structure; the reducing structure comprises a slideway arranged on the handle and leading to the nut sleeve, a fork block which is slidably matched with the slideway and whose fork mouth can extend to the nut sleeve, and a rotating shaft rotatably assembled in the slideway; the fork block is provided with a shifting tooth, and the cylindrical surface of the rotating shaft is provided with a spiral shifting part which is matched with the shifting tooth, and a gear is arranged at the tail of the rotating shaft, and the gear matches a shifting type limiter. The multifunctional wrench provided by the present invention has the advantages of simple structure, convenient operation, high adjustment accuracy, safe and reliable use, etc., and can effectively solve the problems existing in the adjustment and use of traditional wrenches, and has broad application prospects.

Description

Technical Field

[0001] The invention relates to the technical field of wrenches, and in particular to a multifunctional wrench. Background Art

[0002] In mechanical maintenance and assembly work, wrenches are one of the most commonly used tools for tightening or loosening nuts and bolts. Traditional wrenches usually have an opening or sleeve of fixed size and can only be used for nuts or bolts of specific sizes. However, in actual operation, nuts or bolts of different sizes are often encountered, which requires carrying wrenches of various specifications, increasing the complexity and carrying burden of the tools. In order to solve this problem, some multifunctional wrenches with adjustable sizes have appeared on the market. These wrenches usually adapt to nuts or bolts of different sizes by manually adjusting the size of the opening or sleeve. However, the existing adjustable wrenches are often complicated to operate during the adjustment process, the adjustment accuracy is not high, and it is easy to slip or loosen when tightening or loosening the nuts, affecting work efficiency and safety. Therefore, there is an urgent need for a multifunctional wrench with simple structure, convenient operation, high adjustment accuracy and safe and reliable use to meet the tightening and loosening requirements of nuts or bolts of different sizes. Summary of the invention

[0003] The present invention provides a multifunctional wrench, which can alleviate the above problems.

[0004] In order to alleviate the above-mentioned problems, the technical solution adopted by the present invention is as follows:

[0005] The present invention provides a multifunctional wrench, comprising a handle, a movable jaw assembly is arranged at one end of the handle, a nut sleeve is arranged at the other end, and the nut sleeve is provided with a reducing structure; the reducing structure comprises a slideway arranged on the handle and leading to the nut sleeve, a fork block slidably matched with the slideway and with a fork mouth portion capable of extending to the nut sleeve mouth, and a rotating shaft rotatably assembled in the slideway; the fork block is provided with a shifting tooth, the cylindrical surface of the rotating shaft is provided with a spiral shifting portion matched with the shifting tooth, a gear is provided at the tail of the rotating shaft, and the gear matches a shifting type limit piece.

[0006] In a preferred embodiment of the present invention, a U-shaped groove is provided on the side of the fork block facing away from the fork mouth, and a search gear and a rotating shaft are provided in the U-shaped groove.

[0007] In a preferred embodiment of the present invention, the handle is provided with a mounting hole I, which is a through hole penetrating the front and back sides of the handle, and the spiral toggle portion is located in the mounting hole I and protrudes outside the two ends of the mounting hole I.

[0008] In a preferred embodiment of the present invention, the handle is provided with a mounting hole II leading to the slide, and the toggle end of the toggle type limiter is located outside the mounting hole II, and by toggling the toggle end of the toggle type limiter back and forth, the limiting rod of the toggle type limiter can be inserted into or disengaged from the tooth groove of the gear.

[0009] In a preferred embodiment of the present invention, the fork portion of the fork block faces straight ahead and faces one of the inner corners of the nut sleeve.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The invention realizes the function of reducing the diameter of the nut sleeve by arranging structures such as a slideway, a fork block and a rotating shaft; the user can drive the fork block to move forward and backward only by rotating the rotating shaft, so as to adjust the size of the nut sleeve, which is simple and convenient to operate and does not require complicated adjustment steps; through the cooperation of the spiral toggle part and the toggle tooth, the forward and backward movement of the fork block can be accurately controlled to ensure that the nut sleeve can accurately match nuts of different sizes, thereby avoiding the problem of inaccurate adjustment of traditional wrenches; a toggle-type limiter is provided, which can lock the rotating shaft after the fork block is adjusted into place to prevent the fork block from moving when tightening or loosening the nut, thereby ensuring the stability and safety of the wrench during use and avoiding slipping or loosening; since the nut sleeve can be reduced in diameter by the movement of the fork block, the multifunctional wrench can be suitable for nuts or bolts of various sizes, thereby reducing the need to carry wrenches of various specifications and improving the versatility and portability of the tool; through the fast and accurate adjustment function, the user can quickly switch between nuts or bolts of different sizes, thereby reducing the time for changing tools and improving work efficiency.

[0012] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the embodiments of the present invention are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 is a schematic structural diagram of the multifunctional wrench described in the embodiment;

[0015] Figure 2 is a schematic diagram of the structure of the multifunctional wrench in the embodiment without the components in the slideway;

[0016] Figure 3is a schematic cross-sectional structural diagram of the multifunctional wrench described in the embodiment;

[0017] Figure 4 is a schematic diagram of the structure of components in the slideway described in the embodiment;

[0018] In the figure: 1-handle, 2-movable jaw assembly, 3-nut sleeve, 4-screw toggle part, 5-toggle type limiter, 6-fork block, 7-slideway, 8-mounting hole I, 9-mounting hole II, 10-gear, 11-rotating shaft, 12-toggle tooth. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0020] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The multifunctional wrench disclosed in the embodiment of the present invention comprises a handle 1, a movable jaw assembly 2, a nut sleeve 3 and a reducing structure. By setting the reducing structure, the size of the nut sleeve 3 is adjustable, so as to adapt to nuts or bolts of different sizes.

[0021] A movable jaw assembly 2 is provided at one end of the handle 1 for clamping or screwing a bolt or nut; a nut sleeve 3 is provided at the other end for screwing a hexagonal nut. The nut sleeve 3 is a regular hexagonal structure and can match a standard hexagonal nut. A reducing structure is provided inside the nut sleeve 3 for adjusting the sleeve size to adapt to a nut of a smaller size.

[0022] The reducing structure includes a slide 7, a fork block 6 and a rotating shaft 11. The slide 7 is arranged inside the handle 1 and leads to the nut sleeve 3. The slide 7 provides a sliding space for the fork block 6 so that the fork block 6 can move forward and backward along the slide 7. The fork block 6 is slidably fitted in the slide 7, and its fork mouth can extend into the nut sleeve 3. A U-shaped groove is provided on the side of the fork block 6 facing away from the fork mouth, and a shifting tooth 12 is provided in the U-shaped groove. The fork mouth of the fork block 6 faces straight ahead and is opposite to one of the inner corners of the nut sleeve 3, ensuring that the fork block 6 can effectively tighten the nut sleeve 3. The rotating shaft 11 is rotatably assembled in the slide 7, and a spiral toggle portion 4 is provided on its cylindrical surface, and the spiral toggle portion 4 cooperates with the shifting tooth 12 of the fork block 6. A gear 10 is provided at the tail of the rotating shaft 11, and the gear 10 matches the toggle-type limiter 5.

[0023] The spiral shifting portion 4 of the rotating shaft 11 cooperates with the shifting teeth 12 of the fork block 6 to realize the forward and backward movement of the fork block 6:

[0024] When the rotating shaft 11 rotates forward, the spiral shifting part 4 shifts the shifting tooth 12, driving the fork block 6 to move forward along the slide 7, so that the fork mouth of the fork block 6 extends to a suitable position in the nut sleeve 3; when the rotating shaft 11 rotates reversely, the spiral shifting part 4 shifts the shifting tooth 12, driving the fork block 6 to move backward along the slide 7, so that the fork mouth of the fork block 6 retreats to a suitable position.

[0025] The toggle limiter 5 is used to lock or unlock the rotating shaft 11: when the position of the fork block 6 needs to be adjusted, the toggle end of the toggle limiter 5 is toggled backward to disengage the limit rod from the tooth groove of the gear 10 of the rotating shaft 11, thereby unlocking the rotating shaft 11; when the fork block 6 is moved into place, the toggle end of the toggle limiter 5 is toggled forward to insert the limit rod into the tooth groove of the gear 10 of the rotating shaft 11, thereby locking the rotating shaft 11 and fixing the position of the fork block 6.

[0026] For easy operation, mounting hole I8 and mounting hole II9 are provided. Mounting hole I8 is a through hole that runs through the front and back sides of the handle 1. The spiral toggle portion 4 is located in the mounting hole I8 and protrudes outside the two ends of the mounting hole I8, which is convenient for the user to operate the rotating shaft 11. The mounting hole II9 leads to the inside of the slideway 7. The toggle end of the toggle-type limiter 5 is located outside the mounting hole II9. The user can control the insertion or disengagement of the limiter plug by toggling the toggle end forward and backward.

[0027] The method of using the present invention includes:

[0028] 1) Adjust the position of fork block 6:

[0029] The toggle end of the toggle limiter 5 is toggled backward to unlock the rotating shaft 11. The rotating shaft 11 is rotated forward or reversely to drive the fork block 6 to move forward or backward along the slideway 7, so that the fork mouth of the fork block 6 extends to a suitable position in the nut sleeve 3. The toggle end of the toggle limiter 5 is toggled forward to lock the rotating shaft 11 and fix the position of the fork block 6.

[0030] 2) Tighten the nut:

[0031] When the nut size matches the nut sleeve 3, the fork block 6 is retracted into the slideway 7, and the nut is directly screwed using the nut sleeve 3. When the nut size is smaller, the position of the fork block 6 is adjusted so that the fork portion of the fork block 6 extends into the nut sleeve 3, and the nut is screwed in cooperation with a portion of the nut sleeve 3 located in front.

[0032] Take the example of tightening hexagon nuts of different sizes:

[0033] For hexagonal nuts of standard size, there is no need to adjust the fork block 6, and the nut sleeve 3 is directly used to twist. For hexagonal nuts of smaller size, the rotating shaft 11 is rotated so that the fork portion of the fork block 6 extends to the appropriate position in the nut sleeve 3 to clamp the nut and twist it.

[0034] Through the above structure and method, the multifunctional wrench of the present invention can quickly and accurately adjust the size of the nut sleeve 3 to adapt to nuts or bolts of different sizes, thereby improving the versatility and use efficiency of the tool.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multifunctional wrench, comprising a handle (1), one end of which is provided with a movable jaw assembly (2), and the other end of which is provided with a nut sleeve (3), characterized in that: The nut sleeve (3) is provided with a reducing structure; the reducing structure comprises a slideway (7) provided on the handle (1) and leading to the nut sleeve (3), a fork block (6) slidably fitted in the slideway (7) and having a fork mouth portion capable of extending to the nut sleeve (3), and a rotating shaft (11) rotatably assembled in the slideway (7); the fork block (6) is provided with a shifting tooth (12), the cylindrical surface of the rotating shaft (11) is provided with a spiral shifting portion (4) matched with the shifting tooth (12), the tail of the rotating shaft (11) is provided with a gear (10), and the gear (10) matches the shifting type limiter (5).

2. The multifunctional wrench according to claim 1, characterized in that: A U-shaped groove is arranged on the side of the fork block (6) facing away from the fork opening, and a search tooth (12) and a rotating shaft (11) are arranged in the U-shaped groove.

3. The multifunctional wrench according to claim 1, characterized in that: The handle (1) is provided with a mounting hole I (8), which is a through hole that passes through the front and back sides of the handle (1), and the spiral toggle portion (4) is located in the mounting hole I (8) and protrudes from the outside of both ends of the mounting hole I (8).

4. The multifunctional wrench according to claim 1, characterized in that: The handle (1) is provided with a mounting hole II (9) leading to the slideway (7); the toggle end of the toggle-type limiter (5) is located outside the mounting hole II (9); and by toggle-moving the toggle end of the toggle-type limiter (5) forward and backward, the limit insertion rod of the toggle-type limiter (5) can be inserted into or disengaged from the tooth groove of the gear (10).

5. The multifunctional wrench according to claim 1, characterized in that: The fork opening of the fork block (6) faces straight ahead and is directly opposite to one of the inner corners of the nut sleeve opening (3).

6. The multifunctional wrench according to claim 5, characterized in that: The nut sleeve (3) is a regular hexagonal structure.

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