Quick locking adjustable wrench

Abstract

The utility model relates to a quick locking's movable spanner belongs to movable spanner technical field, this quick locking's movable spanner, include: spanner mechanism, spanner mechanism includes spanner body, fixed jaw, movable jaw and extension block, locking mechanism, locking mechanism includes limit stop, connecting rod and locking pin, limit stop fixed setting in the extension block inboard, connecting rod fixed setting on the upper surface of limit stop, locking pin sliding setting in the one end of connecting rod away from limit stop, the inside of spanner body is provided with the limit slot and the removal slot corresponding with limit stop, in movable jaw inboard is connected limit stop through extension block, limit stop size is greater than extension block size, the position of movable jaw is adjusted through the removal of limit stop in removal slot, then will limit stop and enter the inside corresponding limit slot, again through locking pin to limit stop position carries out the fixed, avoids needing to rotate screw rod continuously, thereby quick adjustment and locking movable spanner, and then improve operating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of adjustable wrench technology, and in particular to an adjustable wrench that can be quickly locked. Background Technology

[0002] Adjustable wrenches are core tools in mechanical repair and equipment installation. Their core value lies in adapting to different sizes of bolts, nuts, and other fasteners by adjusting the jaw spacing. This allows for multi-size operations without frequent tool changes, making them widely used in industrial production and daily maintenance. Traditional adjustable wrenches achieve their adjustment function primarily through a single-screw drive structure: the fixed jaws are integrated with the wrench body, while the adjustable jaws have an internal threaded hole at the bottom that engages with an adjusting screw running through the wrench frame. Manually rotating the screw drives the adjustable jaws to move along a guide groove, thereby changing the jaw spacing to fit the fastener size.

[0003] However, existing single-screw adjustment structures have insurmountable efficiency drawbacks. Because the screw pitch is fixed, when tightening large-sized fasteners, it is necessary to rotate the screw more than ten times to effectively adjust the jaw spacing. Especially when several different sizes of fasteners need to be tightened alternately at the maintenance site, the repeated screw rotation is cumbersome, resulting in a significant reduction in work efficiency. Utility Model Content

[0004] Therefore, it is necessary to provide a quick-locking adjustable wrench to address the problem that the repeated screw rotation is cumbersome when alternately tightening several different sizes of fasteners, resulting in a significant reduction in work efficiency.

[0005] A quick-locking adjustable wrench includes: a wrench mechanism, the wrench mechanism including a wrench body, a fixed jaw, a movable jaw and an extension block fixedly disposed inside the movable jaw, the fixed jaw being fixedly disposed on one side of the wrench body;

[0006] A locking mechanism, comprising a limiting block, a connecting rod, and a locking pin, wherein the limiting block is fixedly disposed inside the extension block, the connecting rod is fixedly disposed on the upper surface of the limiting block, and the locking pin is slidably disposed at the end of the connecting rod away from the limiting block;

[0007] The wrench body has a limiting groove and a moving groove inside that correspond to the limiting block. Several sets of limiting grooves are provided, and the limiting grooves and moving grooves are connected.

[0008] In one embodiment, the upper surface of the wrench body is provided with a plurality of locking holes corresponding to the locking pins, and the locking holes are located on one side of the corresponding limiting groove.

[0009] In one embodiment, spring plungers are fixedly provided on both sides of the limiting block, and two sets of positioning holes corresponding to the spring plungers are opened inside the limiting groove.

[0010] In one embodiment, the outer side of the wrench body is provided with an extension groove corresponding to the extension block, and the extension groove is connected to the moving groove.

[0011] In one embodiment, the wrench body has an internal movable groove corresponding to the extension block, and the movable groove is connected to both the moving groove and the movable groove.

[0012] In one embodiment, the limiting groove is located on the side of the moving groove away from the movable jaw, and the top of the limiting groove is in communication with the outside.

[0013] In one embodiment, the top of the movable groove is connected to the outside, while the side of the movable groove away from the fixed jaw is not connected to the outside.

[0014] In one embodiment, the side of the extension groove and the movable groove away from the fixed jaw is connected to the outside.

[0015] Beneficial effects

[0016] 1. The aforementioned adjustable wrench has an extension block connected to a limiting block on the inner side of the movable jaw. The limiting block is larger than the extension block. The position of the movable jaw is adjusted by moving the limiting block inside the moving groove. Then, the limiting block is inserted into the corresponding limiting groove, and the position of the limiting block is fixed by a locking pin. This avoids the need for continuous rotation of the screw, thereby quickly adjusting and locking the adjustable wrench and improving work efficiency.

[0017] 2. The aforementioned adjustable wrench, by setting spring plungers on both sides of the limiting block and opening positioning holes on the inner side of several sets of limiting grooves, improves the stability of the movable jaw after locking by setting spring plungers on both sides into the corresponding positioning holes when the limiting block is engaged in the corresponding limiting groove. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the movable jaw adjustment of this utility model;

[0021] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a sectional view of the wrench body of this utility model;

[0023] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle.

[0024] Reference numerals: 100, wrench mechanism; 200, locking mechanism; 101, wrench body; 102, fixed jaw; 103, movable jaw; 104, extension block; 201, limiting groove; 202, limiting block; 203, connecting rod; 204, locking pin; 205, locking hole; 206, spring plunger; 207, extension groove; 208, moving groove; 209, movable groove; 210, positioning hole. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments 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, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The following is combined Figures 1-5 This invention describes a quick-locking adjustable wrench.

[0027] In one embodiment, a quick-locking movable wrench includes: a wrench mechanism 100, which includes a wrench body 101, a fixed jaw 102, a movable jaw 103, and an extension block 104 fixedly disposed inside the movable jaw 103; the fixed jaw 102 is fixedly disposed on one side of the wrench body 101; and a locking mechanism 200, which includes a limiting block 202, a connecting rod 203, and a locking pin 204; the limiting block 202 is fixedly disposed inside the extension block 104; the connecting rod 203 is fixedly disposed on the upper surface of the limiting block 202; and the locking pin 204 is slidably disposed at the end of the connecting rod 203 away from the limiting block 202.

[0028] In this embodiment, the movable jaw 103 and the extension block 104 are fixed by welding; the limiting block 202 and the extension block 104 are connected by hexagonal socket head cap screws, which facilitates the disassembly and maintenance of subsequent components; and the size of the limiting block 202 is larger than that of the extension block 104, so that the extension block 104 can move normally while the limiting block 202 limits the extension block 104 to prevent the movable jaw 103 and the extension block 104 from falling off the side of the wrench body 101; the connecting rod 203 is fixedly set on the upper surface of the limiting block 202, and a locking pin 204 is slidably set on the side of the connecting rod 203 away from the movable jaw 103, and a limiting plate with a diameter larger than the locking pin 204 is set at the top of the locking pin 204, so as to prevent the locking pin 204 from coming off the inside of the connecting rod 203. The operator can pull the locking pin 204 and then drive the limiting block 202 to move, so as to facilitate the operator to quickly adjust the movable jaw 103 and then quickly tighten the corresponding bolt.

[0029] like Figure 3 , Figure 4 and Figure 5 As shown, the wrench body 101 has a limiting groove 201 and a moving groove 208 corresponding to the limiting block 202 inside. Several sets of limiting grooves 201 are provided, and the limiting grooves 201 and the moving grooves 208 are connected. Several sets of locking holes 205 corresponding to the locking pins 204 are provided on the upper surface of the wrench body 101. The locking holes 205 are located on one side of the corresponding limiting groove 201. Spring plungers 206 are fixedly provided on both sides of the limiting block 202. Two sets of positioning holes 210 corresponding to the spring plungers 206 are provided inside the limiting groove 201.

[0030] In this embodiment, the number of limiting grooves 201 can be adjusted according to the target adaptation specifications. If it is necessary to cover the M6-M20 specifications, 5 sets of limiting grooves 201 can be set. When the movable jaw 103 is pulled outward, the limiting block 202 is located inside the moving groove 208 and moves along the moving groove 208. After the limiting block 202 is adjusted to the required position, the limiting block 202 is locked into the limiting groove 201, thereby preventing the limiting block 202 from continuing to move. When the limiting block 202 is locked into the limiting groove 201, the spring plunger 206 will be locked into the corresponding positioning hole 210, thereby improving the stability of the limiting block 202 after positioning.

[0031] like Figure 2 , Figure 4 and Figure 5As shown, the wrench body 101 has an extension groove 207 on its outer side corresponding to the extension block 104, and the extension groove 207 is connected to the moving groove 208; the wrench body 101 has a movable groove 209 on its inner side corresponding to the extension block 104, and the movable groove 209 is connected to both the moving groove 208 and the movable groove 209; the side of the extension groove 207 and the movable groove 209 away from the fixed jaw 102 is connected to the outside; the limiting groove 201 is located on the side of the moving groove 208 away from the movable jaw 103, and the top of the limiting groove 201 is connected to the outside; the top of the moving groove 208 is connected to the outside, and the side of the moving groove 208 away from the fixed jaw 102 is not connected to the outside.

[0032] In this embodiment, the inner walls of both the extension groove 207 and the movable groove 209 are sandblasted to reduce the frictional resistance when the extension block 104 moves. The surface of the limiting step of the movable groove 208 away from the fixed jaw 102 is nitrided to improve wear resistance and prevent the limiting block 202 from coming off due to wear after long-term use. The extension groove 207 and the movable groove 209 of the wrench body 101 adopt an open design, and the locking pin 204 is equipped with a convenient pull ring; the operations of lifting and unlocking, sliding adjustment, and releasing and locking can be completed with one hand. Especially when working in narrow spaces such as inside equipment or pipe gaps, no two hands are required, greatly improving the convenience of operation. An extension groove 207 is provided to ensure the normal movement of the extension block 104. When the movable jaw 103 is pulled outward, the extension block 104 and the limiting block 202 will move within the extension groove 207 and the moving groove 208. A moving groove 209 is provided inside the wrench body 101 to ensure that when the limiting block 202 is engaged in the limiting groove 201, the extension block 104 is engaged in the moving groove 209, thus ensuring smooth adjustment of the position of the movable jaw 103. The top of the moving groove 208 is connected to the outside to ensure that the locking pin 204 can be inserted into the corresponding locking hole 205, thereby further ensuring the stability of the engagement of the limiting block 202 and thus ensuring the stability of the movable jaw 103 when locking the workpiece. The other side of the moving groove 208 is not connected to the outside to prevent the limiting block 202 from disengaging from the wrench body 101.

[0033] Working principle: The operator pulls the locking pin 204 upwards, and then moves the limiting block 202 into the moving groove 208 by operating the locking pin 204. Then, the position of the movable jaw 103 is adjusted. When the movable jaw 103 is adjusted to the required position, the locking pin 204 drives the limiting block 202 to engage in the corresponding limiting groove 201. At this time, the spring plunger 206 engages in the corresponding positioning hole 210. Then, the locking pin 204 is inserted into the corresponding locking hole 205. This avoids the need for continuous rotation of the screw, thereby quickly adjusting and locking the movable wrench, thus improving work efficiency.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A quick-locking adjustable wrench, characterized in that, include: A wrench mechanism (100) includes a wrench body (101), a fixed jaw (102), a movable jaw (103), and an extension block (104) fixedly disposed inside the movable jaw (103). The fixed jaw (102) is fixedly disposed on one side of the wrench body (101). A locking mechanism (200) includes a limiting block (202), a connecting rod (203), and a locking pin (204). The limiting block (202) is fixedly disposed inside the extension block (104), the connecting rod (203) is fixedly disposed on the upper surface of the limiting block (202), and the locking pin (204) is slidably disposed at the end of the connecting rod (203) away from the limiting block (202). The wrench body (101) has a limiting groove (201) and a moving groove (208) corresponding to the limiting block (202) inside. The limiting groove (201) has several sets, and the limiting groove (201) and the moving groove (208) are connected.

2. The quick-locking adjustable wrench according to claim 1, characterized in that, The upper surface of the wrench body (101) is provided with a number of locking holes (205) corresponding to the locking pin (204), and the locking holes (205) are located on one side of the corresponding limiting groove (201).

3. The quick-locking adjustable wrench according to claim 1, characterized in that, Spring plungers (206) are fixedly installed on both sides of the limiting block (202), and two sets of positioning holes (210) corresponding to the spring plungers (206) are opened on the inner side of the limiting groove (201).

4. The quick-locking adjustable wrench according to claim 1, characterized in that, The outer side of the wrench body (101) is provided with an extension groove (207) corresponding to the extension block (104), and the extension groove (207) is connected to the moving groove (208).

5. The quick-locking adjustable wrench according to claim 4, characterized in that, The wrench body (101) has an internal movable groove (209) corresponding to the extension block (104), and the movable groove (209) is connected to the moving groove (208) and the movable groove (209).

6. The quick-locking adjustable wrench according to claim 1, characterized in that, The limiting groove (201) is located on the side of the moving groove (208) away from the movable jaw (103), and the top of the limiting groove (201) is connected to the outside.

7. The quick-locking adjustable wrench according to claim 1, characterized in that, The top of the movable groove (208) is connected to the outside, and the side of the movable groove (208) away from the fixed jaw (102) is not connected to the outside.

8. The quick-locking adjustable wrench according to claim 5, characterized in that, The extension groove (207) and the movable groove (209) are connected to the outside on the side away from the fixed jaw (102).

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