Labor-saving wrench structure

Abstract

The utility model provides a labor-saving wrench structure, and belongs to the technical field of mechanical hardware tools. The labor-saving wrench structure comprises an adjusting assembly, the adjusting assembly comprises a center disc, a clamping disc and a U-shaped block, a clamping groove is formed in the center of the center disc, a short arc groove is formed in the outer portion of the center disc, a long arc groove is formed in the outer portion of the center disc, an initial groove is formed in the center of the clamping disc, and a sliding groove is formed in the center of the clamping disc in the corner direction of the initial groove. A plurality of groups of short arc grooves and long arc grooves are circumferentially distributed outside the central disc in pairs, the steering assembly is arranged outside the adjusting assembly and comprises a crank part, a handle folding part, a steering shaft, a finger grab handle and a grasping handle, and the tail end of the grasping handle is connected through an elastic binding belt. The utility model has the advantages of can adapt to the bolt of different specifications, can adjust the space required by operation.

Description

Technical Field

[0001] This utility model relates to the field of mechanical hardware tools technology, specifically to a labor-saving wrench structure. Background Technology

[0002] A wrench is a common tool for installation and disassembly, mainly divided into open-end wrenches, box wrenches, and combination wrenches. It utilizes the lever principle to tighten or loosen bolts, screws, nuts, and other similar parts. It is an essential tool in fields such as mechanical repair and automotive repair. The ergonomic design of wrenches makes them easy for operators to hold and use, effectively improving work efficiency and reducing labor intensity.

[0003] Existing wrenches are mainly divided into open-end wrenches, box wrenches, and combination wrenches, etc., with their inner groove sizes corresponding to the corresponding bolt models. When disassembling different bolt models, the wrench needs to be replaced accordingly. Furthermore, wrench operation utilizes the lever principle, requiring a certain amount of operating space. When working in relatively narrow spaces, it is necessary to change to a wrench for the specific scenario, which is inconvenient and fails to meet current needs. Therefore, this application provides a labor-saving wrench structure. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model proposes a labor-saving wrench structure that can be adapted to bolts of different specifications and can adjust the space required for operation.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A labor-saving wrench structure includes an adjusting component, which comprises a central plate, a clamping plate, and a U-shaped block. The central plate has a locking groove at its center, short arc grooves, and long arc grooves on its outer surface. The clamping plate has a pre-formed groove at its center, and a sliding groove along the corner of the pre-formed groove at its center. Multiple sets of short and long arc grooves are arranged in pairs circumferentially around the outside of the central plate. The structure also includes:

[0007] A steering assembly is disposed outside the adjustment assembly. The steering assembly includes a crank portion, a folding portion, a steering shaft, a finger grip, and a handle, the end of which is connected by an elastic restraint strap.

[0008] Furthermore, the central disk is located at the center of the adjustment assembly, the clamping disks are distributed on both sides of the central disk and clamp the central disk, the U-shaped block is movably connected between the central disk and the clamping disks, and there are two sets of clamping disks symmetrically distributed on both sides of the central disk.

[0009] Furthermore, the snap-fit ​​groove is dodecagonal, the endpoints of the short arc groove and the long arc groove are respectively on the same circle, the initial groove is hexagonal, the sliding groove has multiple sets and is distributed circumferentially on the diagonal of the initial groove, and the U-shaped block is movably connected to the sliding groove.

[0010] Furthermore, the U-shaped block has a contact end on its exterior, the edge of the contact end has a contact bevel, the U-shaped block has a series groove on its exterior, the series groove has a hidden groove on its exterior, a sleeve is movably connected inside the series groove, and a screw is threaded inside the sleeve.

[0011] Furthermore, the U-shaped block is snapped onto the outside of the central disk, and the sleeve and screw fix the U-shaped block between the central disk and the clamping disk through short and long arc grooves.

[0012] Furthermore, the crank portion is fixedly connected to the outside of the center disc, the folding handle portion is fixedly connected to the outside of the clamping disc, the steering shaft is fixedly connected to the outside of the crank portion and the folding handle portion, the finger grip is fixedly connected to the crank portion located outside the steering shaft, and the hand grip is fixedly connected to the folding handle portion located outside the steering shaft.

[0013] Furthermore, the steering shafts are offset between the outer edges of the grips, the spacing between the steering shafts outside the grips is slightly greater than the thickness of the finger grips, and the steering shafts outside the finger grips are located at the center position between the steering shafts outside the grips in a horizontal position.

[0014] Furthermore, a rubber coating is fixedly connected to the outside of the finger grip, and an interlocking groove is formed between the finger grips, with the finger grips interlocking with the interlocking groove.

[0015] This utility model has the following beneficial effects:

[0016] 1. By setting up adjustment components, the device can adjust and snap-fit ​​bolts of various sizes and types to match different specifications of bolts, thus avoiding inefficiency caused by model compatibility issues and greatly improving the adaptability of the device.

[0017] 2. By setting a steering component, the device can adjust the direction of force, thereby facilitating its adaptability to different working spaces and avoiding difficulties in operation due to environmental issues, which greatly improves the device's performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall appearance of this utility model;

[0019] Figure 2 This is a utility model Figure 1 Exploded view of the internal structure;

[0020] Figure 3 This is a partial structural schematic diagram of the present invention;

[0021] Figure 4 This is a partial structural schematic diagram of the present invention;

[0022] Figure 5 This is an exploded view of the internal structure of the U-shaped block of this utility model.

[0023] The components are as follows: 1. Adjustment assembly; 101. Center plate; 102. Snap-fit ​​groove; 103. Short arc groove; 104. Long arc groove; 105. Clamping plate; 106. Initial groove; 107. Sliding groove; 108. U-shaped block; 109. Contact end; 110. Contact slope; 111. Series groove; 112. Hidden groove; 113. Sleeve; 114. Screw; 2. Steering assembly; 201. Crank part; 202. Folding part; 203. Steering shaft; 204. Finger grip; 205. Rubber coating; 206. Hand grip; 207. Fitting groove. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and 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.

[0025] Example 1

[0026] Please see Figures 1 to 5 As shown, the present invention provides a labor-saving wrench structure, including an adjustment component 1. The adjustment component 1 includes a central plate 101, a clamping plate 105, and a U-shaped block 108. The central plate 101 has a locking groove 102 at its center, a short arc groove 103 on its outer surface, and a long arc groove 104 on its outer surface. The clamping plate 105 has a pre-formed groove 106 at its center, and a sliding groove 107 along the corner of the pre-formed groove 106 at its center. Multiple sets of short arc grooves 103 and long arc grooves 104 are arranged in pairs circumferentially around the outside of the central plate 101. The invention also includes:

[0027] Steering assembly 2 is disposed outside of adjustment assembly 1. Steering assembly 2 includes crank part 201, folding part 202, steering shaft 203, finger grip 204, and handle 206. The end of handle 206 is connected by an elastic restraint strap. Center plate 101 is located at the center of adjustment assembly 1. Clamping plates 105 are distributed on both sides of center plate 101 and clamp center plate 101. U-shaped block 108 is movably connected between center plate 101 and clamping plates 105. There are two sets of clamping plates 105 symmetrically distributed on both sides of center plate 101. Snap groove 102 is dodecagonal. The endpoints of short arc groove 103 and long arc groove 104 are respectively on the same circle. Initial groove 106 is hexagonal. There are multiple sets of sliding grooves 107 distributed circumferentially on the diagonal of initial groove 106. U-shaped block 108 is movably connected to sliding groove 107.

[0028] Specifically, during loading and unloading operations, the initial groove 106 on the outside of the clamping plate 105 is aligned with the center of the bolt and then engaged with it. Then, the gripping handles 204 and 206 are used to make the center plate 101 and the clamping plate 105 rotate relative to each other. During the relative rotation of the center plate 101 and the clamping plate 105, the sleeve 113 and the screw 114 move synchronously towards the center along the short arc groove 103 and the long arc groove 104. During this process, the U-shaped block 108 moves in a straight line towards the center along the sliding groove 107 under the drive of the sleeve 113 and the screw 114 until it comes into contact with the bolt, thereby completing the model adaptation and fixing of the bolt.

[0029] Example 2

[0030] Please see Figures 1 to 5 As shown, based on embodiment 1, the U-shaped block 108 is provided with a contact end 109 on the outside, the contact end 109 is provided with a contact slope 110 on the edge, the U-shaped block 108 is provided with a series groove 111 on the outside, the series groove 111 is provided with a hidden groove 112 on the outside, the series groove 111 is movably connected with a sleeve 113, the sleeve 113 is threadedly connected with a screw 114, the U-shaped block 108 is snapped onto the outside of the center plate 101, the sleeve 113 and the screw 114 are fixed between the center plate 101 and the clamping plate 105 through a short arc groove 103 and a long arc groove 104, the crank part 201 is fixedly connected to the outside of the center plate 101, and the folding handle part 202 is fixedly connected to the outside of the clamping plate 105;

[0031] Steering shaft 203 is fixedly connected to the outside of crank part 201 and folding arm part 202. Finger grip 204 is fixedly connected to crank part 201 located outside of steering shaft 203. Handle grip 206 is fixedly connected to folding arm part 202 located outside of steering shaft 203. Steering shaft 203 is misaligned between the outside of handle grip 206. The distance between steering shafts 203 outside handle grip 206 is slightly greater than the thickness of finger grip 204. Steering shafts 203 outside finger grip 204 are located at the center of steering shafts 203 outside handle grip 206 in a horizontal position. Rubber covering 205 is fixedly connected to the outside of finger grip 204. Fitting groove 207 is formed between handle grips 206. Finger grip 204 is fitted into fitting groove 207.

[0032] By making the above settings, if there is an obstruction in the working ring, after the adaptation and fixing in Embodiment 1 is completed, the angle is adjusted by rotating the finger grip 204 and the handle 206 to adjust the working space. The angle of the finger grip 204 and the handle 206 is adjusted by the crank part 201 and the folding handle part 202 so that the non-overlapping horizontal angles of the two are horizontal to each other, which facilitates the operator's grip and comfort during operation.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A labor-saving wrench structure, comprising an adjusting component (1), characterized in that, The adjustment assembly (1) includes a central disk (101), a clamping disk (105), and a U-shaped block (108). The central disk (101) has a snap-fit ​​groove (102) at its center, a short arc groove (103) on its outer surface, and a long arc groove (104) on its outer surface. The clamping disk (105) has a preform groove (106) at its center, and a sliding groove (107) along the corner of the preform groove (106) at its center. Multiple sets of the short arc groove (103) and long arc groove (104) are arranged in pairs and circumferentially around the outside of the central disk (101). The assembly also includes: Steering assembly (2) is disposed outside the adjustment assembly (1). The steering assembly (2) includes a crank part (201), a folding part (202), a steering shaft (203), a finger grip (204), and a handle (206). The end of the handle (206) is connected by an elastic restraint strap.

2. The labor-saving wrench structure according to claim 1, characterized in that, The central disk (101) is located at the center of the adjustment assembly (1). The clamping disks (105) are distributed on both sides of the central disk (101) and clamp the central disk (101). The U-shaped block (108) is movably connected between the central disk (101) and the clamping disks (105). There are two sets of clamping disks (105) symmetrically distributed on both sides of the central disk (101).

3. The labor-saving wrench structure according to claim 1, characterized in that, The snap-fit ​​groove (102) is dodecagonal, the endpoints of the short arc groove (103) and the long arc groove (104) are on the same circle, the initial groove (106) is hexagonal, the sliding groove (107) has multiple sets and is distributed circumferentially on the diagonal of the initial groove (106), and the U-shaped block (108) is movably connected to the sliding groove (107).

4. The labor-saving wrench structure according to claim 1, characterized in that, The U-shaped block (108) is provided with a contact end (109) on the outside, and a contact slope (110) is provided on the edge of the contact end (109). A series groove (111) is provided on the outside of the U-shaped block (108), and a hidden groove (112) is provided on the outside of the series groove (111). A sleeve (113) is movably connected inside the series groove (111), and a screw (114) is threaded inside the sleeve (113).

5. The labor-saving wrench structure according to claim 4, characterized in that, The U-shaped block (108) is snapped onto the outside of the central disk (101), and the sleeve (113) and the screw (114) fix the U-shaped block (108) between the central disk (101) and the clamping disk (105) through the short arc groove (103) and the long arc groove (104).

6. The labor-saving wrench structure according to claim 1, characterized in that, The crank portion (201) is fixedly connected to the outside of the center plate (101), the folding handle portion (202) is fixedly connected to the outside of the clamping plate (105), the steering shaft (203) is fixedly connected to the outside of the crank portion (201) and the folding handle portion (202), the finger grip (204) is fixedly connected to the crank portion (201) located outside the steering shaft (203), and the grip handle (206) is fixedly connected to the folding handle portion (202) located outside the steering shaft (203).

7. The labor-saving wrench structure according to claim 1, characterized in that, The steering shaft (203) is installed offset between the outside of the grip (206), the distance between the steering shafts (203) outside the grip (206) is slightly greater than the thickness of the finger grip (204), and the steering shaft (203) outside the finger grip (204) is located at the center position between the steering shafts (203) outside the horizontal grip (206).

8. The labor-saving wrench structure according to claim 1, characterized in that, A rubber coating (205) is fixedly connected to the outside of the finger grip (204), and a fitting groove (207) is formed between the grips (206), and the finger grip (204) is fitted into the fitting groove (207).

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