Monkey wrench convenient to lock

Abstract

The utility model discloses a monkey wrench convenient to lock, which belongs to the technical field of monkey wrenches and comprises a wrench body and a handle, the wrench body comprises the handle fixedly mounted on the side face, a groove is formed in an inner cavity of the wrench body, a movable jaw adjusting and locking component is arranged in an inner cavity of the groove, and a movable jaw adjusting and locking component is arranged in the movable jaw adjusting and locking component. A handle adjusting assembly is arranged on the outer surface of the handle. The position of the movable jaw can be adjusted through mutual cooperation of the gear, the sector gear and the rotating rod, the size of an opening can be changed to adapt to nuts or bolts of different sizes, the situation that the precision is reduced when the size of the opening of the movable jaw is adjusted due to friction abrasion generated by traditional nut adjustment is avoided, and therefore abrasion is reduced, and the working efficiency is improved. The adjusting precision and stability are improved, the operation process is simplified, the working efficiency is improved, unnecessary reverse movement of the gear when a worker loosens the rotary button can be prevented through the pawl and the fixing rod, and therefore the position of the movable jaw is kept fixed, and locking is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of adjustable wrenches, and more specifically, to an adjustable wrench that is convenient for locking. Background Art

[0002] A wrench is a commonly used installation and disassembly tool that mainly uses the lever principle to turn bolts, screws, nuts, and other threaded fasteners. There are many designs and types of wrenches, including open-end wrenches, socket wrenches, box wrenches, adjustable wrenches, and torque wrenches, etc. Among them, adjustable wrenches are widely used due to the flexibility of their structures.

[0003] The existing adjustable wrench usually consists of a fixed jaw, a movable jaw, a handle, and an adjustable movable jaw structure. When in use, according to the size of the nut or bolt, the opening size of the movable jaw is adjusted through the adjustment structure until it matches the size of the nut or bolt. Then, the opening of the wrench is aligned with the nut or bolt to ensure that both the fixed jaw and the movable jaw are in full contact with the edge of the nut or bolt. Then, hold the handle of the wrench and apply torque according to the direction of tightening or loosening the nut as needed until the nut or bolt reaches the required tightness or is completely loosened, and then stop applying torque.

[0004] In the actual use of the existing technology, the adjustment structure usually uses a nut to adjust the opening size of the movable jaw. Since the nut will be worn due to long-term rotation and friction, the accuracy of adjusting the opening size of the movable jaw will decrease, resulting in the wrench being unable to accurately adapt to the size of the target nut or bolt, affecting the efficiency and safety of tightening or disassembly. Therefore, an adjustable wrench that is convenient for locking is proposed. Summary of the Utility Model

[0005] 1. Technical Problems to be Solved

[0006] Aiming at the problems existing in the prior art, the utility model provides an adjustable wrench that is convenient for locking. Through the mutual cooperation of a gear, a sector gear, and a rotating rod, it can adjust the position of the movable jaw to realize the change of the opening size, so as to adapt to nuts or bolts of different sizes, avoid the traditional adjustment by nut that causes friction and wear, resulting in a decrease in the accuracy of adjusting the opening size of the movable jaw, thereby reducing wear, improving the adjustment accuracy and stability, simplifying the operation process, and enhancing the work efficiency.

[0007] 2. Technical Solutions

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A convenient locking adjustable wrench, comprising a wrench body and a handle. The wrench body includes a handle fixedly installed on the side. A groove is formed in the inner cavity of the wrench body, and an adjustable locking assembly for the movable jaw is arranged in the inner cavity of the groove. A handle adjustment assembly is arranged on the outer surface of the handle; the adjustable locking assembly for the movable jaw includes a rotating rod rotatably connected to the inner cavity of the groove through a bearing seat. A gear is fixedly connected to the outer surface of the rotating rod. A movable jaw is connected to the inner cavity of the groove through a rotating shaft. A sector gear is fixedly connected to the side of the movable jaw through a rotating shaft. The gear and the sector gear are meshed with each other. A torsion spring is fixedly connected to the inner wall of the groove, and one end of the torsion spring is fixedly connected with a pawl; the handle adjustment assembly includes an adjustment plate sleeved on the outer surface of the handle. A plurality of adjustment grooves are formed in the inner part of the handle. A fixing groove corresponding to one of the adjustment grooves is formed in the inner part of the adjustment plate. An adjustment block is clamped in the inner cavity of the adjustment groove, and a moving rod is fixedly connected to the side of the adjustment block.

[0010] Further, a fixed jaw is fixedly connected to the outer surface of the wrench body.

[0011] Further, the pawl abuts against the teeth of the gear. A fixed rod is rotatably connected to the inner cavity of the groove, and the outer surface of the fixed rod is fixedly connected with the inner part of the pawl.

[0012] Further, the rotating rod is rotatably inserted through the outer surface of the wrench body and fixedly connected with a rotary knob.

[0013] Further, the moving rod is inserted through the outer surface of the adjustment plate and fixedly connected with a pull plate.

[0014] Further, a spring is sleeved on the outer surface of the moving rod. One end of the spring is connected to the side of the adjustment block, and the other end is connected to the inner wall of the fixing groove.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present utility model are as follows:

[0017] (1) Through the mutual cooperation of the gear, the sector gear and the rotating rod, the position of the movable jaw can be adjusted in this solution, realizing the change of the opening size to adapt to nuts or bolts of different sizes, avoiding the traditional adjustment through nuts, which causes friction and wear and reduces the accuracy when adjusting the opening size of the movable jaw, thereby reducing wear, improving the adjustment accuracy and stability, simplifying the operation process, and improving the work efficiency.

[0018] (2) When the staff loosens the rotary knob, the ratchet and the fixed rod can prevent unnecessary reverse movement of the gear, thereby keeping the position of the movable jaw fixed to achieve locking. The torsion spring provides support force and restoring force for the ratchet, ensuring stable contact between the ratchet and the gear, and also ensuring that the ratchet can be reset smoothly when needed.

[0019] (3) Through the mutual cooperation of the spring, the adjustment groove, the fixed groove, the adjustment block, the moving rod and the adjustment plate, the length of the handle can be adjusted, so that the length of the handle can be adjusted according to the specific needs of the user. This design makes the wrench more ergonomic and improves the comfort and efficiency during use. Brief Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the whole utility model;

[0021] Figure 2 is a structural sectional view of the whole utility model;

[0022] Figure 3 is the Figure 2 enlarged view of part A in the utility model;

[0023] Figure 4 is a partial structural exploded view of the handle adjustment assembly of the utility model.

[0024] Explanation of the reference numerals in the drawings:

[0025] 1. Wrench body; 101. Handle; 102. Fixed jaw; 103. Groove;

[0026] 2. Movable jaw adjustment and locking assembly; 201. Rotating rod; 202. Gear; 203. Movable jaw; 204. Sector gear; 205. Torsion spring; 206. Ratchet; 207. Fixed rod;

[0027] 3. Handle adjustment assembly; 301. Adjustment plate; 302. Adjustment groove; 303. Fixed groove; 304. Adjustment block; 305. Moving rod; 306. Spring. Detailed Embodiment

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] Embodiment 1

[0032] Referring to Figure 1 、 Figure 2 and Figure 3 , this is the first embodiment of the present utility model. This embodiment provides a movable wrench that is convenient to lock, including a wrench body 1 and a handle 101. The wrench body 1 includes a handle 101 fixedly installed on the side. A groove 103 is formed in the inner cavity of the wrench body 1, and a movable jaw adjustment and locking assembly 2 is arranged in the inner cavity of the groove 103.

[0033] Specifically, the movable jaw adjustment and locking assembly 2 includes a rotating rod 201 rotatably connected to the inner cavity of the groove 103 through a bearing seat. A gear 202 is fixedly connected to the outer surface of the rotating rod 201. A movable jaw 203 is connected to the inner cavity of the groove 103 through a rotating shaft. A sector gear 204 is fixedly connected to the side of the movable jaw 203 through a rotating shaft. The gear 202 and the sector gear 204 are meshed with each other. A torsion spring 205 is fixedly connected to the inner wall of the groove 103. One end of the torsion spring 205 is fixedly connected to a pawl 206. The pawl 206 abuts against the teeth of the gear 202. A fixed rod 207 is rotatably connected to the inner cavity of the groove 103. The outer surface of the fixed rod 207 is fixedly connected to the inside of the pawl 206.

[0034] Further, when the rotating rod 201 rotates, it drives the gear 202 on its surface to rotate, which further drives the movable jaw 203 to rotate. By adjusting the position of the movable jaw 203, the change in the opening size is realized to adapt to nuts or bolts of different sizes. Then, the rotary knob is loosened, thereby reducing wear, improving the adjustment accuracy and stability. At the same time, when the gear 202 rotates, the cooperation of the fixed rod 207 and the pawl 206 can prevent the unnecessary reverse movement of the gear 202 when the staff loosens the rotary knob, thus keeping the position of the movable jaw 203 fixed.

[0035] Embodiment 2

[0036] Refer to Figure 1 、 Figure 2 And Figure 4 , which is the second embodiment of the present utility model. Based on the previous embodiment, the wrench body 1 includes a handle 101 fixedly installed on the side, and a handle adjustment assembly 3 is arranged on the outer surface of the handle 101.

[0037] Specifically, the handle adjustment assembly 3 includes an adjustment plate 301 sleeved and connected to the outer surface of the handle 101. A plurality of adjustment grooves 302 are formed inside the handle 101. A fixing groove 303 corresponding to one of the adjustment grooves 302 is formed inside the adjustment plate 301. An adjustment block 304 is clamped in the inner cavity of the adjustment groove 302. A moving rod 305 is fixedly connected to the side of the adjustment block 304. A spring 306 is sleeved and connected to the outer surface of the moving rod 305. One end of the spring 306 is connected to the side of the adjustment block 304, and the other end is connected to the inner wall of the fixing groove 303. The moving rod 305 penetrates through the outer surface of the adjustment plate 301 and is fixedly connected to a pulling plate.

[0038] Further, pull the pulling plate outwards, so that the moving rod 305 drives the adjustment block 304 to move into the fixing groove 303 and away from the adjustment groove 302, further driving the spring 306 to be compressed, so as to release the fixed limit on the adjustment plate 301. At this time, according to the need, the length of the handle 101 is extended or shortened, and the adjustment plate 301 will slide on the handle 101 to make it reach an appropriate length. Then, release the pulling plate, and the elastic force of the spring 306 drives the adjustment block 304 to re-engage with the adjustment groove 302 inside the adjustment plate 301, so that the length of the handle 101 can be adjusted according to the needs of the staff.

[0039] Working principle: When in use, rotate the rotary knob to drive the rotating rod 201 to rotate. When the rotating rod 201 rotates, it will drive the gear 202 on its surface to rotate. Since the gear 202 meshes with the sector gear 204, when the gear 202 rotates, it will drive the sector gear 204 to rotate, further driving the movable jaw 203 to rotate. By adjusting the position of the movable jaw 203, the change in the opening size is realized to adapt to nuts or bolts of different sizes. Then release the rotary knob to avoid the precision decline when adjusting the opening size of the movable jaw 203 due to frictional wear caused by adjusting through nuts in the traditional way. At the same time, when the gear 202 rotates, the cooperation of the fixed rod 207 and the pawl 206 can prevent the unnecessary reverse movement of the gear 202 when the staff releases the rotary knob, and the torsion spring 205 provides support force and reset force for the pawl 206 to ensure the stable contact between the pawl 206 and the gear 202, and also ensures that the pawl 206 can be reset smoothly when needed. If it is necessary to adjust the opening size of the movable jaw 203 in the reverse direction, the user only needs to rotate the rotary knob again. At this time, under the action of the torsion spring 205, the pawl 206 allows the gear 202 to rotate forward or backward, so as to realize the bidirectional adjustment of the opening size of the movable jaw 203.

[0040] Subsequently, pull the pull plate outwards, so that the moving rod 305 drives the adjusting block 304 to move into the fixed groove 303 and away from the adjusting groove 302, further driving the spring 306 to be compressed, so as to release the fixed limit on the adjusting plate 301. At this time, according to the need to extend or shorten the length of the handle 101, the adjusting plate 301 will slide on the handle 101 to make it reach an appropriate length. Then release the pull plate, and the elastic force of the spring 306 drives the adjusting block 304 to re-engage into the adjusting groove 302 in the adjusting plate 301, so as to fix the length of the handle 101.

[0041] The above is only the preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent replacement or change, and should be covered by the protection scope of the present invention.

Claims

1. An adjustable wrench with convenient locking, comprising a wrench body (1) and a handle (101). The wrench body (1) includes a handle (101) fixedly installed on the side, and is characterized in that: A groove (103) is formed in the inner cavity of the wrench body (1), an adjustable locking assembly (2) for the movable jaw is arranged in the inner cavity of the groove (103), and an adjusting assembly (3) for the handle is arranged on the outer surface of the handle (101); The adjustable locking assembly (2) for the movable jaw includes a rotating rod (201) rotatably connected to the inner cavity of the groove (103) through a bearing seat. A gear (202) is fixedly connected to the outer surface of the rotating rod (201). A movable jaw (203) is connected to the inner cavity of the groove (103) through a rotating shaft. A sector gear (204) is fixedly connected to the side surface of the movable jaw (203) through a rotating shaft. The gear (202) meshes with the sector gear (204). A torsion spring (205) is fixedly connected to the inner wall of the groove (103), and one end of the torsion spring (205) is fixedly connected to a pawl (206); The adjusting assembly (3) for the handle includes an adjusting plate (301) sleeved and connected to the outer surface of the handle (101). A plurality of adjusting grooves (302) are formed in the interior of the handle (101). A fixing groove (303) corresponding to one of the adjusting grooves (302) is formed in the interior of the adjusting plate (301). An adjusting block (304) is clamped in the inner cavity of the adjusting groove (302), and a moving rod (305) is fixedly connected to the side surface of the adjusting block (304).

2. The adjustable wrench that is convenient to lock according to claim 1, wherein: A fixed jaw (102) is fixedly connected to the outer surface of the wrench body (1).

3. The adjustable wrench convenient for locking according to claim 1, wherein: The pawl (206) abuts against the teeth of the gear (202). A fixed rod (207) is rotatably connected to the inner cavity of the groove (103), and the outer surface of the fixed rod (207) is fixedly connected to the interior of the pawl (206).

4. The adjustable wrench that is convenient to lock according to claim 1, wherein: The rotating rod (201) is rotatably inserted through the outer surface of the wrench body (1) and fixedly connected with a rotary knob.

5. A convenient locking adjustable wrench according to claim 1, characterized in that: The moving rod (305) is inserted through the outer surface of the adjusting plate (301) and fixedly connected with a pulling plate.

6. The adjustable wrench that is convenient for locking according to claim 1, wherein: A spring (306) is sleeved and connected to the outer surface of the moving rod (305). One end of the spring (306) is connected to the side surface of the adjusting block (304), and the other end is connected to the inner wall of the fixing groove (303).

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