CN211388518U

CN211388518U - Open end wrench suitable for narrow space

Info

Publication number: CN211388518U
Application number: CN201922172577.1U
Authority: CN
Inventors: 阿西达; 邓昕; 巴洪; 沈卫东; 吴国平; 雷长春; 赖华瑾; 刘世华
Original assignee: Jiangxi Hongdu Aviation Industry Group Co Ltd
Current assignee: Jiangxi Hongdu Aviation Industry Group Co Ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-09-01
Anticipated expiration: 2029-12-06

Abstract

The utility model provides an open end wrench suitable for narrow space, which mainly comprises a wrench head (1) and an operating rod (2), wherein the wrench head (1) is connected with the operating rod (2) through a pin shaft, the outer end of the pin shaft is designed with a thread which is matched with an ear type nut to fasten the wrench head (1) and the operating rod (2); a pin hole is formed in the side face of the outer end of the operating rod (2), and a right-angle L-shaped reinforcing rod (3) can be additionally arranged in the pin hole; an opening formed by the wrench head (1) and the nut in occlusion is designed into a tooth shape according to the overall dimension of the hexagon nut to be disassembled and assembled, and one corner of the hexagon nut can be clamped between the two teeth; above-mentioned open end spanner, spanner head (1) can be adjusted wantonly in the scope of about 270 for action bars (2), and spanner head (1) only need carry out 30 rotations (general open end spanner need rotate at least 60 degrees at every turn) to the nut at every turn, and very applicable narrow space operation uses.

Description

Open end wrench suitable for narrow space

Technical Field

The utility model belongs to the mechanical tool field specifically is an open-end wrench suitable for narrow space.

Background

In the work such as mechanical assembly, maintenance, often need carry out spare part dismouting operation in very narrow space, general purpose tool that uses is difficult to adapt to the operation in narrow space because of not having carried out the pertinence design. If when the fuel pipeline is dismantled to the aircraft, because of aircraft belly oil pipe junction space is narrow, when using general open-end wrench, can rotate because of lacking sufficient space, the operation is difficult, and is inefficient. Therefore, it is necessary to design an open wrench suitable for a narrow space to disassemble and assemble the fuel pipe.

Disclosure of Invention

For solving the not enough of above-mentioned prior art existence, the utility model provides a technical problem who solves provides an open end spanner suitable for narrow space, can be applicable to the fuel pipe dismouting operation in narrow space.

In order to solve the technical problem, the utility model is suitable for an open end wrench in narrow space mainly includes wrench end and action bars, and wrench end is connected through rotating connected mode with the action bars.

Furthermore, the rotation connection mode of the wrench head and the operating rod is pin connection.

Furthermore, in the pin connection mode of the wrench head and the operating rod, the outer end of the pin for connection is designed with threads, and the threads are screwed through the lug type nut to fix the wrench head and the operating rod and maintain a certain operating angle.

The wrench head can be adjusted freely in the range of about 270 degrees relative to the rod, so that an operator can swing out the limitation of a narrow space, the part of the rod or the extension rod extends into the space where force is conveniently applied, the work of disassembling the nut is completed, and the labor intensity of maintenance personnel is greatly reduced.

In order to further prolong the operating arm of force, a pin hole is arranged on the side surface of the outer end of the operating rod, and a right-angle L-shaped force applying rod can be additionally arranged in the pin hole.

The opening of the wrench head meshed with the nut is designed into a tooth shape according to the overall dimension of the hexagon nut to be disassembled and assembled, and one corner of the hexagon nut can be clamped between the two teeth. This shape can make the spanner head carry out the small angle rotation to the nut, and general open-ended spanner need rotate at least 60 at every turn, and this spanner only need rotate 30 at every turn, more is fit for narrow space's use.

In the technical scheme, the designed open spanner suitable for the narrow space is simple in composition, simple and convenient to operate and suitable for the narrow space.

Drawings

Fig. 1 is a schematic view of the open-end wrench structure suitable for narrow space.

Fig. 2 is a schematic view of the open wrench used in narrow space.

In FIGS. 1-2: 1. a wrench head, 2, an operating rod, 3 and a stress application rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 and 2, and it is obvious that the described embodiments are only a specific embodiment of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the open end wrench suitable for a narrow space is composed of a wrench head 1, an operating lever 2 and a force application lever 3. One end of the operating rod 2 is laterally provided with a pin hole, and a right-angle L-shaped reinforcing rod 3 is inserted into the pin hole to prolong the operating rod 2. The other end of the operating rod 2 is connected with the wrench head 1 in a pin shaft mode, the outer end of the pin shaft is fastened in a threaded and lug type nut mode, and the lug type nut is fastened after the wrench head 1 and the operating rod 2 are adjusted to a proper angle. As shown in fig. 2, the wrench head 1 can be adjusted freely in a range of about 270 degrees relative to the operating rod 2, so that an operator can swing out of the limit of a narrow space, the work of disassembling the nut is completed, and the labor intensity of maintenance personnel is greatly reduced.

The opening of spanner head 1 and nut interlock is the profile of tooth according to the hexagonal nut's of needs dismouting overall dimension design, can carry hexagonal nut's an angle between two teeth, and this shape can make the spanner head carry out the low-angle rotation to the nut, and general open-ended spanner need rotate at least 60 at every turn, and this spanner only need rotate 30 at every turn, more is fit for narrow space's use.

As shown in figure 2, when in use, the wrench is stretched into the space where the nut needs to be disassembled, and the wrench head 1 is adjusted to form a certain angle with the operating rod 2 according to the space size, so that the operating rod 2 is stretched out of a narrow space and is placed in a place where the nut is convenient to rotate. If necessary, the force applying rod 3 can be assembled to extend the force arm for convenient use.

Claims

1. The utility model provides an open end spanner suitable for narrow space, mainly includes spanner head (1) and action bars (2), characterized by: the wrench head (1) is connected with the operating rod (2) in a rotating connection mode.

2. The open wrench for narrow spaces, as claimed in claim 1, wherein: the rotation connection mode of the wrench head (1) and the operating rod (2) is pin shaft connection.

3. The open wrench for a narrow space according to claim 2, wherein: in the pin shaft connection mode of the wrench head (1) and the operating rod (2), the outer end of a pin shaft for connection is provided with a thread, and the thread is screwed through an ear type nut so as to fix the wrench head (1) and the operating rod (2).

4. The open wrench for narrow spaces, as claimed in claim 1, wherein: the side surface of the outer end of the operating rod (2) is provided with a pin hole, and a right-angle L-shaped stressing rod (3) can be additionally arranged in the pin hole.

5. The open wrench for narrow spaces, as claimed in claim 1, wherein: the opening of the wrench head (1) meshed with the nut is designed into a tooth shape according to the overall dimension of the hexagon nut to be disassembled and assembled, and one corner of the hexagon nut can be clamped between the two teeth.