Monkey wrench with locking function

Abstract

The utility model provides a monkey wrench with a locking function, which comprises a head, the head is provided with a fixed jaw, a first mounting groove provided with a movable jaw, and a second mounting groove provided with a worm gear, and two ends of the worm gear are respectively and rotatably connected with two opposite side walls on the second mounting groove. A tooth part at the lower end of the movable jaw is meshed with the worm gear, a third mounting groove is further formed in the head part, an elastic component is mounted in the third mounting groove, a buckle is arranged between the elastic component and the worm gear, and the buckle abuts against the side portion of the worm gear. During working, the buckle is manually shifted to enable the elastic component to be pressed, the buckle is released from abutting connection with the worm gear, then the opening degree between the movable jaw and the fixed jaw is adjusted by rotating the worm gear to be matched with the nut, after adjustment is completed, the buckle is loosened, the buckle recovers abutting connection with the side portion of the worm gear under the action of elastic force provided by the elastic component, and the nut is locked. And friction force is generated to realize a locking function.

Description

Technical Field

[0001] The utility model relates to a wrench, in particular to an adjustable wrench with a locking function. Background Art

[0002] The worm is the mechanism of the adjustable wrench to adjust the jaw opening. When using the wrench, if a person accidentally touches the worm, the opening of the fixed jaw and the movable jaw will change, making it impossible to clamp the nut, resulting in inconvenience in use; in addition, if the wrench is used for a long time, the teeth under the worm and / or movable jaw will rust and wear, which will also cause looseness during use. Therefore, it is necessary to design an adjustable wrench with a locking function to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide an adjustable wrench with a locking function to solve the technical problem that the worm is easy to loosen in the prior art. In order to achieve the above technical features, the purpose of the utility model is achieved as follows:

[0004] A movable wrench with a locking function comprises a head, the head is provided with a fixed jaw, a first mounting groove on which a movable jaw is installed, and a second mounting groove on which a worm is installed, the two ends of the worm are respectively connected to two opposite side walls of the second mounting groove to form a rotation connection, the tooth portion at the lower end of the movable jaw is meshed with the worm, the head is also provided with a third mounting groove, an elastic component is installed in the third mounting groove, a buckle is provided between the elastic component and the worm, and the buckle abuts against the side of the worm.

[0005] A boss is provided in the third mounting groove, a mounting hole for mounting the elastic component is provided on the boss, and a groove adapted to the boss is provided on the buckle.

[0006] The buckle is provided with a wedge portion which abuts against the inclined surface of the worm side.

[0007] The elastic component is a compression spring.

[0008] A convex portion is arranged on the outer side of the buckle.

[0009] The utility model provides an adjustable wrench with a locking function, wherein an elastic component is installed in the third installation groove on the head, and a buckle is arranged between the elastic component and the worm, and the buckle abuts against the side of the worm. When working, the buckle is manually toggled so that the elastic component is compressed and the buckle is released from abutment with the worm, and then the opening and closing degree between the movable jaw and the fixed jaw is adjusted by rotating the worm to adapt to the nut. After the adjustment is completed, the buckle is released, and the buckle resumes abutment with the side of the worm under the elastic force provided by the elastic component, thereby generating friction to achieve the locking function. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0011] Figure 1 A schematic diagram of the structure of an adjustable wrench with a locking function provided by an embodiment of the utility model;

[0012] Figure 2 A schematic diagram of the installation position of the elastic component provided in the embodiment of the utility model;

[0013] Figure 3 The embodiment of the utility model provides Figure 2 A partial enlarged view of the middle Q;

[0014] Figure 4 A schematic diagram of the buckle mechanism provided by an embodiment of the utility model;

[0015] In the figure: head 1, fixed jaw 2, movable jaw 3, first mounting groove 4, worm 5, second mounting groove 6, third mounting groove 7, elastic component 8, buckle 9, boss 10, mounting hole 11, groove 12, wedge portion 13, protrusion 14. DETAILED DESCRIPTION

[0016] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0017] See attached Figure 1-4 , an adjustable wrench with a locking function, comprising a head 1, the head 1 is provided with a fixed jaw 2, a first mounting groove 4 with a movable jaw 3 installed, and a second mounting groove 6 with a worm 5 installed, the two ends of the worm 5 are respectively connected to the two opposite side walls of the second mounting groove 6 to form a rotation connection, the teeth of the lower end of the movable jaw 3 are meshed with the worm 5, and the head 1 is also provided with a third mounting groove 7, an elastic component 8 is installed in the third mounting groove 7, a buckle 9 is provided between the elastic component 8 and the worm 5, and the buckle 9 abuts against the side of the worm 5. When working, the buckle 9 is manually toggled to press the elastic component 8 and release the buckle 9 from abutting against the worm 5, and then the opening and closing degree between the movable jaw 3 and the fixed jaw 2 is adjusted by rotating the worm 5 to adapt to the nut, and after the adjustment is completed, the buckle 9 is released, and the buckle 9 resumes abutting against the side of the worm 5 under the elastic force provided by the elastic component 8, so as to generate friction to achieve the locking function.

[0018] Furthermore, a boss 10 is provided in the third mounting groove 7, and a mounting hole 11 for mounting the elastic component 8 is provided on the boss 10. The buckle 9 is provided with a groove 12 adapted to the boss 10. Through the setting of the boss 10, on the one hand, the elastic component 8 is installed and positioned; on the other hand, the boss 10 cooperates with the groove 10 on the buckle 9, so that the buckle 9 can be positioned and guided.

[0019] Furthermore, the buckle 9 is provided with a wedge portion 13 which abuts against the side inclined surface of the worm 5 .

[0020] Furthermore, the elastic component 8 is a compression spring.

[0021] Furthermore, a protrusion 14 is provided on the outer side of the buckle 9 to facilitate quick movement of the buckle.

Claims

1. An adjustable wrench with a locking function, comprising a head (1), the head (1) being provided with a fixed jaw (2), a first mounting groove (4) on which a movable jaw (3) is mounted, and a second mounting groove (6) on which a worm (5) is mounted, the two ends of the worm (5) being rotatably connected to two mutually opposite side walls of the second mounting groove (6), the toothed portion at the lower end of the movable jaw (3) being meshed with the worm (5), characterized in that: The head (1) is also provided with a third mounting groove (7), an elastic component (8) is installed in the third mounting groove (7), a buckle (9) is provided between the elastic component (8) and the worm (5), and the buckle (9) abuts against the side of the worm (5).

2. The adjustable wrench with locking function according to claim 1, characterized in that: A boss (10) is provided in the third mounting groove (7), a mounting hole (11) for mounting the elastic component (8) is provided on the boss (10), and a groove (12) adapted to the boss (10) is provided on the buckle (9).

3. The adjustable wrench with locking function according to claim 1, characterized in that: The buckle (9) is provided with a wedge portion (13) that abuts against the side inclined surface of the worm (5).

4. The adjustable wrench with locking function according to claim 1, characterized in that: The elastic component (8) is a compression spring.

5. The adjustable wrench with locking function according to claim 1, characterized in that: A protrusion (14) is provided on the outer side of the buckle (9).

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