阅读说明：本技术 可自锁的扳手 (Self-locking wrench ) 是由 陈述会 于 2018-07-25 设计创作，主要内容包括：本发明公开了一种可自锁的扳手,包括扳手头(1)和手柄(2),扳手头(1)包括活动部(11)和驱动件(3),活动部(11)右端设有滑动部(12),驱动件(3)外侧壁上设有驱动螺纹,滑动部(12)右端间隔设有开口；还包括锁紧螺栓(5),驱动件(3)两端设有转轴,扳手头(1)外侧设有螺纹孔(13),使得螺纹孔(13)轴线与转轴轴线垂直相交,且锁紧螺栓(4)与扳手头(1)螺纹连接；手柄(2)端部设置有通孔(4)。本装置通过将锁紧螺栓(5)插入螺纹孔(13)内,并拧动锁紧螺栓(5),使得锁紧螺栓(5)的插入端直接与驱动件(3)端部的转轴接触,就可固定驱动件(3),从而实现固定扳手头(1)开口大小的目的。(The invention discloses a self-locking wrench, which comprises a wrench head (1) and a handle (2), wherein the wrench head (1) comprises a movable part (11) and a driving part (3), the right end of the movable part (11) is provided with a sliding part (12), the outer side wall of the driving part (3) is provided with driving threads, and the right end of the sliding part (12) is provided with openings at intervals; the wrench is characterized by further comprising a locking bolt (5), rotating shafts are arranged at two ends of the driving piece (3), a threaded hole (13) is formed in the outer side of the wrench head (1), the axis of the threaded hole (13) is perpendicular to the axis of the rotating shafts, and the locking bolt (4) is in threaded connection with the wrench head (1); the end part of the handle (2) is provided with a through hole (4). According to the device, the locking bolt (5) is inserted into the threaded hole (13), and the locking bolt (5) is screwed, so that the insertion end of the locking bolt (5) is directly contacted with the rotating shaft at the end part of the driving piece (3), the driving piece (3) can be fixed, and the purpose of fixing the opening size of the wrench head (1) is achieved.)

1. Spanner that can auto-lock, including spanner head (1) and handle (2), spanner head (1) is including slidable movable part (11) and driving piece (3), its characterized in that: the right end of the movable part (11) is provided with a sliding part (12) connected with the driving part (3), the outer side wall of the driving part (3) is provided with driving threads which are spirally arranged, and the right end of the sliding part (12) is provided with adaptive openings at intervals; the wrench is characterized by further comprising a locking bolt (5), rotating shafts are arranged at two ends of the driving piece (3), a threaded hole (13) is formed in the outer side of the wrench head (1), the axis of the threaded hole (13) is perpendicular to the axis of the rotating shafts, and the locking bolt (4) can be inserted into the threaded hole (13) and is in threaded connection with the wrench head (1); the end part of the handle (2) far away from the wrench head (1) is provided with a through hole (4).

2. The self-lockable wrench as claimed in claim 1, characterized in that: the through hole (4) is square.

Technical Field

The invention discloses a self-locking wrench, and belongs to the technical field of tool supplies.

Background

The wrench is a common mounting and dismounting tool, and is a manual tool for screwing bolts, screws, nuts and other screw threads to tightly hold open or trepanning fasteners of the bolts or nuts by utilizing the lever principle. The existing wrench is mainly divided into a fixed wrench and a movable wrench with fixed dimensions, but the existing movable wrench mainly comprises a wrench head and a handle, the opening size of the wrench head can be adjusted as required, the movable wrench in the prior art is not provided with a locking device, the opening size on the wrench head can be changed during actual use, and the opening size can be adjusted repeatedly.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a self-locking wrench capable of quickly adjusting the opening and closing the gas cylinder.

The technical scheme adopted by the invention for solving the technical problems is as follows: the self-locking wrench comprises a wrench head and a handle, wherein the wrench head comprises a slidable movable part and a driving part, the right end of the movable part is provided with a sliding part connected with the driving part, the outer side wall of the driving part is provided with driving threads which are spirally arranged, and the right end of the sliding part is provided with adaptive openings at intervals; the wrench is characterized by further comprising a locking bolt, rotating shafts are arranged at two ends of the driving piece, a threaded hole is formed in the outer side of the wrench head, the axis of the threaded hole is perpendicular to the axis of the rotating shafts, and the locking bolt can be inserted into the threaded hole and is in threaded connection with the wrench head; the end part of the handle far away from the wrench head is provided with a through hole.

Wherein, the shape of the through hole in the device is square.

The invention has the beneficial effects that: the device has simple structure and convenient use. The locking bolt is inserted into the threaded hole and screwed, so that the insertion end of the locking bolt is directly contacted with the rotating shaft at the end part of the driving piece, the driving piece can be fixed, and the purpose of fixing the size of the opening of the wrench head is achieved. Meanwhile, the through hole is formed in the handle, so that the whole wrench is convenient to fix, and the practical use is more convenient.

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic view of the construction of the lock bolt of the present invention.

FIG. 3 is a schematic view of a partial cross-sectional structure of the present invention.

Labeled as: 1 is a wrench head, 11 is a movable part, 12 is a sliding part, 2 is a handle, 3 is a driving part, 4 is a through hole, and 5 is a locking bolt.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the self-lockable wrench of the present device comprises a wrench head 1 and a handle 2, wherein the wrench head 1 comprises a slidable movable portion 11 and a driving member 3, a sliding portion 12 connected with the driving member 3 is provided at the right end of the movable portion 11, a driving thread spirally arranged is provided on the outer side wall of the driving member 3, and adaptive openings are provided at the right end of the sliding portion 12 at intervals; the wrench is characterized by further comprising a locking bolt 5, rotating shafts are arranged at two ends of the driving piece 3, a threaded hole 13 is formed in the outer side of the wrench head 1, the axis of the threaded hole 13 is perpendicular to the axis of the rotating shafts, and the locking bolt 4 can be inserted into the threaded hole 13 and is in threaded connection with the wrench head 1; the end part of the handle 2 far away from the wrench head 1 is provided with a through hole 4. As can be understood by those skilled in the art, the device can fix the driving member 3 by inserting the locking bolt 5 into the threaded hole 13 and screwing the locking bolt 5 so that the insertion end of the locking bolt 5 directly contacts with the rotating shaft at the end of the driving member 3, thereby achieving the purpose of fixing the size of the opening of the wrench head 1. Meanwhile, the handle 2 is provided with a through hole, so that the whole wrench can be conveniently suspended and fixed, and the practical use is more convenient.

Wherein, the shape of the through hole 4 in the device is square. It can be understood by those skilled in the art that the device is further preferred that the through hole 4 on the handle 2 is square, which can be used for opening and closing the cylinder valve, and is more convenient for practical use.