Crescent wrench

Abstract

The utility model provides a crescent wrench, which belongs to the technical field of crescent wrenches and comprises a handle. The rotating groove is formed in one end of the handle; the accommodating groove is formed in the side end of the handle; the crescent hook is rotationally connected between the inner walls of the rotating groove through a rotating shaft; the adjusting mechanism is arranged at the side end of the handle, the adjusting mechanism is connected with the crescent hook and used for deflecting the crescent hook, in the deflection process of the sliding sleeve, the lead screw is in sliding fit with the sliding sleeve to provide power for deflection of the crescent hook, and meanwhile when deflection of the crescent hook needs to be locked, the crescent hook is locked. Deflection of the crescent hook is locked through sliding fit of the lead screw and the sliding sleeve, the deflection angle of the crescent hook is effectively controlled, rotation adjustment of the crescent hook is effectively achieved, the crescent hook can adapt to limitation of gaps and included angles between different pipe fittings and walls or other objects, use limitation of the crescent wrench is avoided, and the service life of the crescent wrench is prolonged. And the application range of the crescent wrench is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of crescent wrenches, and in particular relates to a crescent wrench. Background Art

[0002] The crescent wrench, also known as a hook wrench or hook spanner, is a commonly used installation and disassembly tool. It is used to twist flat nuts with limited thickness, etc. It is specially used for disassembling and assembling round nuts on vehicles and mechanical equipment. It effectively prevents sparks during work and is suitable for all flammable and explosive places.

[0003] The authorization publication number "CN221135713U" records "a crescent open-end wrench, comprising a wrench body, the wrench body comprising a handle and an arc-shaped guide rail, one end of the arc-shaped guide rail is fixedly connected to one end of the handle, and also comprising a telescopic clamping module, the telescopic clamping module is installed at the end of the arc-shaped guide rail away from the handle, the telescopic clamping module comprises a telescopic rod, a claw and a screw, the telescopic rod is adapted to the arc-shaped guide rail, and the telescopic rod has an arc-shaped structure; this crescent open-end wrench is used to turn the screw by turning the knob so that the screw loosens the telescopic rod, and the telescopic length of the telescopic rod can be adjusted. The telescopic length of the telescopic rod is different, and then the telescopic rod is tightened by turning the knob, so that the wrench can be adapted to pipe fittings of different diameters, so that the claws at the telescopic rod can be clamped in the grooves or protrusions on the surface of the pipe fitting, and the pipe fitting can be rotated and installed. This crescent open-end wrench has strong versatility and can be adapted to pipe fittings of various diameters to meet the different usage needs of users."

[0004] The above patent twists the screw rod by turning the knob to loosen the telescopic rod, so that the telescopic length of the telescopic rod can be adjusted. The telescopic length of the telescopic rod is different, and then the telescopic rod is tightened by turning the knob, so that the wrench can be adapted to pipe fittings of different diameters, so that the claws at the telescopic rod can be clamped in the grooves or protrusions on the surface of the pipe fitting, and the pipe fitting can be rotated and installed. This crescent open-end wrench has strong versatility and can be adapted to pipe fittings of various diameters to meet the different usage needs of users. However, in actual use, when the pipe fitting is close to the wall or other objects, the gap and angle between the pipe fitting and the wall or other objects limit the range of motion of the crescent wrench, so that the crescent wrench cannot rotate the pipe fitting. For this reason, we propose a crescent wrench. Utility Model Content

[0005] The utility model aims to provide a crescent wrench, which aims to solve the problem that when a pipe fitting is close to a wall or other objects, the gap and angle between the pipe fitting and the wall or other objects limit the range of motion of the crescent wrench, making it impossible for the crescent wrench to rotate the pipe fitting.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A crescent wrench with a handle;

[0008] A rotation groove, wherein the rotation groove is provided at one end of the handle;

[0009] A receiving groove, the receiving groove is opened at the side end of the handle;

[0010] The crescent hook is rotatably connected to the inner wall of the rotating groove through a rotating shaft; and

[0011] An adjusting mechanism is arranged at the side end of the handle and is connected to the crescent hook to deflect the crescent hook.

[0012] As a preferred solution of the utility model, the adjustment mechanism includes a pushing assembly, a connecting rod assembly and a guide assembly, the pushing assembly is arranged between the inner walls of the accommodating groove, the guide assembly is arranged on both sides of the handle, the guide assembly is connected to the pushing assembly, the connecting rod assembly is arranged on one side of the crescent hook, and the connecting rod assembly is connected to the pushing assembly.

[0013] As a preferred solution of the utility model, the pushing assembly includes a screw rod, a knob and a sliding sleeve, the screw rod is rotatably connected between the inner walls of the accommodating groove, and one end of the screw rod extends to the side end of the handle, the knob is fixedly connected to the extended end of the screw rod, the sliding sleeve is sleeved on the circumferential surface of the screw rod, and the sliding sleeve slides between the inner walls of the accommodating groove.

[0014] As a preferred solution of the utility model, the guide assembly includes a slider and a limit groove, two limit grooves are provided, the two limit grooves are opened at two side ends of the handle, two sliders are provided, the two sliders slide in the two limit grooves, and the two sliders are connected to the sliding sleeve.

[0015] As a preferred solution of the utility model, the connecting rod assembly includes a push rod, a pull rod and a transfer block, the transfer block is fixedly connected to the side end of the crescent hook, the push rod is fixedly connected to the side end of the sliding sleeve, one end of the pull rod is rotatably connected to the transfer block through a shaft rod, and the other end of the pull rod is rotatably connected to the push rod through a shaft rod.

[0016] As a preferred solution of the utility model, the top of the handle is engraved with scale lines, and the top of the rotating shaft of the crescent hook is fixedly connected with a pointer.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. In this scheme, during the deflection of the sleeve, the screw rod provides power for the deflection of the crescent hook by sliding with the sleeve. At the same time, when the deflection of the crescent hook needs to be locked, the screw rod locks the deflection of the crescent hook by sliding with the sleeve, effectively controlling the deflection angle of the crescent hook and effectively realizing the rotation adjustment of the crescent hook, so that the crescent hook can adapt to the gap and angle restrictions between different pipe fittings and walls or other objects, avoiding restrictions on the use of crescent wrenches and improving the application range of crescent wrenches.

[0019] 2. In this scheme, during the deflection process of the crescent hook, the push rod pushes and pulls the pull rod, the pull rod pushes and pulls the adapter block, and the adapter block drives the crescent hook to deflect, so that the crescent hook deflects in the rotating groove through the rotating shaft, changing the angle between the crescent hook and the handle, thereby achieving rapid adjustment of the crescent hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 This is a first-perspective stereoscopic image of a crescent wrench of the utility model;

[0022] Figure 2 This is a second perspective stereogram of a crescent wrench of the utility model;

[0023] Figure 3 This is a first half cross-sectional view of a crescent wrench according to the utility model;

[0024] Figure 4 This is a second half cross-sectional view of a crescent wrench according to the utility model;

[0025] Figure 5 The utility model is an exploded view of a crescent wrench.

[0026] In the figure: 1. handle; 2. receiving groove; 3. screw rod; 4. knob; 5. push rod; 6. sliding sleeve; 7. slider; 8. rotating groove; 9. crescent hook; 10. pull rod; 11. adapter block; 12. pointer; 13. scale line; 14. limit groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] Reference Figure 1 - Figure 5 , a crescent wrench, comprising:

[0030] Handle 1;

[0031] A rotation slot 8, which is provided at one end of the handle 1;

[0032] A receiving groove 2, which is provided at a side end of the handle 1;

[0033] The crescent hook 9 is rotatably connected to the inner wall of the rotating groove 8 via a rotating shaft; and

[0034] The adjusting mechanism is arranged at the side end of the handle 1 , and the adjusting mechanism is connected to the crescent hook 9 to deflect the crescent hook 9 .

[0035] In the utility model, the handle 1 is used to support the crescent hook 9, the rotating groove 8 is opened to accommodate the crescent hook 9, the accommodating groove 2 is opened to accommodate the screw rod 3 and the sliding sleeve 6, the crescent hook 9 is used to fit the pipe fitting and rotate the pipe fitting, and the adjustment mechanism is connected to the crescent hook 9 to deflect the crescent hook 9.

[0036] The adjusting mechanism includes a pushing assembly, a connecting rod assembly and a guiding assembly. The pushing assembly is arranged between the inner walls of the accommodating groove 2, the guiding assembly is arranged on both sides of the handle 1, the guiding assembly is connected to the pushing assembly, the connecting rod assembly is arranged on one side of the crescent hook 9, and the connecting rod assembly is connected to the pushing assembly.

[0037] In the utility model, the pushing assembly is used to control the deflection angle of the crescent hook 9, the guiding assembly is used to guide and limit the movement of the sliding sleeve 6, and the connecting rod assembly is used to push and pull the crescent hook 9 to deflect.

[0038] The pushing assembly includes a screw rod 3, a knob 4 and a sleeve 6. The screw rod 3 is rotatably connected between the inner walls of the accommodating groove 2, and one end of the screw rod 3 extends to the side end of the handle 1. The knob 4 is fixedly connected to the extended end of the screw rod 3. The sleeve 6 is sleeved on the circumferential surface of the screw rod 3, and the sleeve 6 slides between the inner walls of the accommodating groove 2.

[0039] In the utility model, the screw rod 3 pushes the movement of the screw rod 3 by sliding cooperation with the sleeve 6, the knob 4 is used to rotate the screw rod 3, and the sleeve 6 is used to support and push the push rod 5 to move. In the deflection process of the sleeve 6, the screw rod 3 provides power for the deflection of the crescent hook 9 by sliding cooperation with the sleeve 6. At the same time, when the deflection of the crescent hook 9 needs to be locked, the screw rod 3 locks the deflection of the crescent hook 9 by sliding cooperation with the sleeve 6, effectively controls the deflection angle of the crescent hook 9, and effectively realizes the rotation adjustment of the crescent hook 9, so that the crescent hook 9 can adapt to the gap and angle restrictions between different pipe fittings and walls or other objects, avoids the use restrictions of the crescent wrench, and improves the application range of the crescent wrench.

[0040] The guide assembly includes a slider 7 and a limit groove 14 . There are two limit grooves 14 , which are opened at two side ends of the handle 1 . There are two sliders 7 , which slide in the two limit grooves 14 , and both sliders 7 are connected to the sliding sleeve 6 .

[0041] In the present invention, the two limit grooves 14 are also provided to accommodate the sliding of the two sliders 7 . The two sliders 7 guide and limit the movement of the sliding sleeve 6 by slidingly cooperating with the two limit grooves 14 , thereby ensuring that the sliding sleeve 6 pushes and pulls the crescent hook 9 smoothly.

[0042] The connecting rod assembly includes a push rod 5, a pull rod 10 and an adapter block 11. The adapter block 11 is fixedly connected to the side end of the crescent hook 9, the push rod 5 is fixedly connected to the side end of the sliding sleeve 6, one end of the pull rod 10 is rotatably connected to the adapter block 11 through a shaft rod, and the other end of the pull rod 10 is rotatably connected to the push rod 5 through a shaft rod.

[0043] In the utility model, the adapter block 11 is used to rotationally connect the pull rod 10, the pull rod 10 is used for the rotational connection between the adapter block 11 and the push rod 5, the push rod 5 is used to push and pull the pull rod 10, in the process of deflecting the crescent hook 9, the push rod 5 pushes and pulls the pull rod 10, the pull rod 10 pushes and pulls the adapter block 11, the adapter block 11 drives the crescent hook 9 to deflect, so that the crescent hook 9 deflects in the rotating groove 8 through the rotating shaft, changes the angle between the crescent hook 9 and the handle 1, and achieves rapid adjustment of the crescent hook 9.

[0044] A scale line 13 is engraved on the top of the handle 1 , and a pointer 12 is fixedly connected to the top of the rotating shaft of the crescent hook 9 .

[0045] In the utility model, the scale line 13 is used to display the angle range of the crescent hook 9 deflection, and the pointer 12 displays the deflection angle of the crescent hook 9 in real time by pointing to the scale line 13 .

[0046] The working process of a crescent wrench provided by the utility model is as follows:

[0047] The knob 4 is rotated, and the knob 4 drives the screw rod 3 to rotate. The screw rod 3 pushes the push rod 5 to move in the accommodating groove 2 through the sliding cooperation with the sliding sleeve 6. The push rod 5 drives the sliding sleeve 6 to move. The sliding sleeve 6 pushes and pulls the pull rod 10. The pull rod 10 pushes and pulls the adapter block 11. The adapter block 11 drives the crescent hook 9 to deflect, so that the crescent hook 9 deflects in the rotating groove 8 through the rotating shaft, and the angle between the crescent hook 9 and the handle 1 is changed. The deflection angle of the crescent hook 9 is displayed in real time through the pointing of the scale line 13 by the pointer 12. The screw rod 3 locks the deflection of the crescent hook 9 through the sliding cooperation with the sliding sleeve 6, effectively controls the deflection angle of the crescent hook 9, and effectively realizes the rotation adjustment of the crescent hook 9, so that the crescent hook 9 can adapt to the gap and angle restrictions between different pipe fittings and walls or other objects, avoids the use restrictions of the crescent wrench, and improves the application range of the crescent wrench.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A crescent wrench, characterized in that: include; Handle (1); A rotation groove (8), wherein the rotation groove (8) is formed at one end of the handle (1); A receiving groove (2), wherein the receiving groove (2) is provided at a side end of the handle (1); The crescent hook (9) is rotatably connected to the inner wall of the rotating groove (8) via a rotating shaft; and An adjustment mechanism is arranged at a side end of the handle (1), and the adjustment mechanism is connected to the crescent hook (9) to deflect the crescent hook (9).

2. A crescent wrench according to claim 1, characterized in that: The adjustment mechanism comprises a pushing assembly, a connecting rod assembly and a guiding assembly, wherein the pushing assembly is arranged between the inner walls of the accommodating groove (2), the guiding assembly is arranged on both sides of the handle (1), the guiding assembly is connected to the pushing assembly, the connecting rod assembly is arranged on one side of the crescent hook (9), and the connecting rod assembly is connected to the pushing assembly.

3. A crescent wrench according to claim 2, characterized in that: The pushing assembly comprises a screw rod (3), a knob (4) and a sliding sleeve (6); the screw rod (3) is rotatably connected between the inner walls of the receiving groove (2), and one end of the screw rod (3) extends to the side end of the handle (1); the knob (4) is fixedly connected to the extended end of the screw rod (3); the sliding sleeve (6) is sleeved on the circumferential surface of the screw rod (3), and the sliding sleeve (6) slides between the inner walls of the receiving groove (2).

4. A crescent wrench according to claim 3, characterized in that: The guide assembly comprises a slider (7) and a limiting groove (14), wherein two limiting grooves (14) are provided, and the two limiting grooves (14) are opened at two side ends of the handle (1), and two sliders (7) are provided, and the two sliders (7) slide in the two limiting grooves (14), and the two sliders (7) are connected to the sliding sleeve (6).

5. A crescent wrench according to claim 4, characterized in that: The connecting rod assembly comprises a push rod (5), a pull rod (10) and an adapter block (11), wherein the adapter block (11) is fixedly connected to the side end of the crescent hook (9), the push rod (5) is fixedly connected to the side end of the sliding sleeve (6), one end of the pull rod (10) is rotatably connected to the adapter block (11) via a shaft, and the other end of the pull rod (10) is rotatably connected to the push rod (5) via a shaft.

6. A crescent wrench according to claim 5, characterized in that: The top of the handle (1) is engraved with a scale line (13), and the top of the rotating shaft of the crescent hook (9) is fixedly connected with a pointer (12).

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