CN207807562U - A kind of telescopic spanner - Google Patents

Abstract

The utility model relates to the technical field of wrench tools, in particular to a retractable wrench. It includes a front handle, a fixing sleeve, a rear handle, and a handle. The inner threaded hole of the front handle is matched with the outer threaded hole of the fixing sleeve, and the inner threaded hole of the fixing sleeve is matched with the outer threaded hole of the handle. The front handle, the fixed sleeve, and the handle are all hollowed out and provided with a through hole, the rear handle is arranged in the through hole, and the other side of the rear handle is fixed in the handle. The hole fits so that the rear handle moves back and forth in the through hole so that the tool can be retracted. The beneficial effect of the utility model is that the utility model has the advantages of simple structure, easy portability, convenient and simple operation during use, and is suitable for fastening and dismounting of bolts with large pre-tightening force.

Description

a retractable wrench

technical field

The utility model relates to the technical field of wrench tools, in particular to a retractable wrench.

Background technique

The wrench is used to fasten and loosen bolts and screw connections during equipment maintenance. The wrench is usually formed with an opening or a sleeve hole for clamping a bolt or a nut at one or both ends of the handle. When in use, an external force is applied to the handle along the thread rotation direction to twist the bolt or nut. However, in different environments, threaded connectors will be affected to varying degrees, and are prone to different phenomena such as rust and corrosion. In this way, it will be extremely laborious to disassemble it, and sometimes slow down the entire maintenance process.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide a telescopic wrench.

In order to realize the purpose of the utility model, the technical scheme that the utility model adopts is:

A retractable wrench, comprising a front handle, a fixed sleeve, a rear handle, and a handle, the inner side of the front handle is provided with an internal threaded hole of the front handle, and the outer ring of one side of the fixed sleeve is provided with an external threaded hole of the fixed sleeve, The other side of the fixing sleeve is provided with an internal threaded hole of the fixing sleeve, and one side of the handle is provided with an external threaded hole of the handle, and the internal threaded hole of the front handle is matched with the external threaded hole of the fixing sleeve. The internal threaded hole of the fixing sleeve cooperates with the external threaded hole of the handle, the front handle, the fixing sleeve, and the handle are all hollowed out with through holes, the rear handle is arranged in the through hole, and the rear handle The other side is fixed in the handle, and by opening the fixing sleeve to cooperate with the threaded screw hole of the handle, the rear handle moves back and forth in the through hole so that the tool can be stretched.

One end of the rear handle is provided with a shoulder, and the shoulder is arranged in the through hole in the front handle.

The end of the rear handle without the shoulder is provided with a circlip groove, and the circlip groove passes through the through hole of the handle, and the rear handle and the handle are fixed by the circlip.

The beneficial effects of the utility model are:

The beneficial effect of the utility model is that the utility model has the advantages of simple structure, portability, convenient and simple operation during use, and is suitable for fastening and dismounting of bolts with large pre-tightening force.

Description of drawings

Below in conjunction with accompanying drawing and embodiment example the utility model is described further.

Figure 1 is a schematic diagram of an embodiment of the overall structure of the telescopic wrench;

Figure 2 Sectional view of the front handle;

Fig. 4 Sectional view of the fixed sleeve;

Figure 3 Sectional view of the rear handle;

Figure 5 Sectional view of the handle.

Among them, 1 front handle, 2 rear handle, 3 fixed sleeve, 4 handle, 5 circlip, 6 through hole, 7 internal threaded hole of front handle, 8 internal threaded hole of fixed sleeve, 9 external threaded hole of fixed sleeve, 10 Shaft shoulder, 11 snap ring grooves, 12 handle external thread holes.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

See Figure 1-5.

The utility model discloses a retractable wrench, which comprises a front handle 1, a fixed sleeve 3, a rear handle 2, and a handle 4. The inside of the front handle 1 is provided with a front handle internal thread hole 7, and the fixed sleeve 3 is a The side outer ring is provided with a fixed sleeve external threaded hole 9, the other side of the fixed sleeve 3 is provided with a fixed sleeve internal threaded hole 8, one side of the handle 4 is provided with a handle external threaded hole 12, the front The inner threaded hole 7 of the handle cooperates with the outer threaded hole 9 of the fixing sleeve, the inner threaded hole 8 of the fixing sleeve cooperates with the outer threaded hole 12 of the handle, and the inside of the front handle 1, the fixing sleeve 3, and the handle 4 All are hollowed out and provided with a through hole 6, the rear handle 2 is arranged in the through hole 6, the other side of the rear handle 2 is fixed in the handle 4, and the fixing sleeve 3 is opened to cooperate with the threaded screw hole of the handle 4 , so that the rear handle 2 moves back and forth in the through hole 6 so that the tool can be stretched.

One end of the rear handle 2 is provided with a shoulder 10 , and the shoulder is arranged in the through hole 6 in the front handle 1 .

The end of the rear handle 2 without the shoulder 10 is provided with a circlip groove 11, and the circlip groove 11 passes through the through hole 6 of the handle (4), and the rear handle 2 and the handle 4 are fixed by the circlip.

The operating principle of the utility model is briefly described as follows:

A movable rear handle 2 is added to the handle of the wrench. During normal use, the added rear handle 2 can be shrunk inside the fixed handle, and one end of the added handle can be fixed inside the original handle without the problem that the added handle will fall off. , when the increasing handle is not used, the increasing handle will not be loosened through the threaded connection in the contracted state. When it is necessary to increase the arm of force, unscrew the threaded connection between the fixed sleeve 3 and the handle 4 and the increased handle can be pulled out, and the length of the handle can be adjusted to meet the requirements for the length of the handle to loosen the fastener.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent transformations made by using the specification of the utility model and the contents of the accompanying drawings or directly or indirectly used in related technical fields are all the same. Included in the patent protection scope of the present utility model.

Claims (3)

1. A retractable wrench, including a front handle (1), a fixed sleeve (3), a rear handle (2), and a handle (4), characterized in that: the inside of the front handle (1) is provided with a front handle inner Threaded hole (7), the outer ring of one side of the fixed sleeve (3) is provided with a fixed sleeve external threaded hole (9), and the other side of the fixed sleeve (3) is provided with a fixed sleeve internal threaded hole (8), one side of the handle (4) is provided with a handle external threaded hole (12), the internal threaded hole (7) of the front handle cooperates with the external threaded hole (9) of the fixing sleeve, and the fixing sleeve The inner threaded hole (8) of the barrel cooperates with the outer threaded hole (12) of the handle, and the front handle (1), the fixed sleeve (3) and the handle (4) are all hollowed out with through holes (6), The rear handle (2) is set in the through hole (6), and the other side of the rear handle (2) is fixed in the handle (4), by opening the fixing sleeve (3) and the thread of the handle (4) The screw holes are matched so that the rear handle (2) moves back and forth in the through hole (6) so that the tool can be stretched. 2. A retractable wrench according to claim 1, characterized in that: one end of the rear handle (2) is provided with a shoulder (10), and the shoulder is arranged in a through hole in the front handle (1) (6) inside. 3. A retractable wrench according to claim 1, characterized in that: the end of the rear handle (2) without the shoulder (10) is provided with a circlip groove (11), and the circlip groove (11 ) through the through hole (6) of the handle (4), and the rear handle (2) and the handle (4) are fixed by the circlip.