CN201257638Y

CN201257638Y - Automatic spiral tongs

Info

Publication number: CN201257638Y
Application number: CNU2008201024075U
Authority: CN
Inventors: 钱寅星
Original assignee: China Railway 24th Bureau Group Co Ltd; Fujian Railway Construction Co Ltd of China Railway 24th Bureau Group Co Ltd
Current assignee: China Railway 24th Bureau Group Co Ltd; Fujian Railway Construction Co Ltd of China Railway 24th Bureau Group Co Ltd
Priority date: 2008-05-26
Filing date: 2008-05-26
Publication date: 2009-06-17
Anticipated expiration: 2018-05-26

Abstract

The utility model belongs to securing devices, in particular to a spinning pipe twist. The utility model provides an automatic spinning pipe twist comprising a clamping device. The structure of the utility model is mainly characterized in that a driving device is fixed on the clamping device which includes a handle and a clamp hoop; a rolling element is arranged in the clamp hoop; the driving device is fixed on the clamping device; and a roller and a power device are mounted on the driving device. The utility model has the advantages of simple structure, labor-saving, rapidity, and high efficiency, is operated by mechanical force instead of manual work, increases the connection compactness of the pipe, and requires a small operating space.

Description

Automatically coil clamps

Technical field

The utility model belongs to fastener, especially belongs to the coil pincers.

Background technology

At present will be in construction with the pipe butt joint, generally be that an effective pipe wrench is fixed when especially docking by engage thread, to dock with joint after the tool holder such as another root pipe wrench again after connecting butt joint earlier, spanners etc. will rotate with butt tube, under narrow and small in the butt joint space, as can't the to make spanner complete cycle rotation situation, after can only rotating to an angle, unclamp spanner, change spanner angle is carried out affixed again, and repeated multiple times is until tightening up.Traditional affixed instrument increases working strength of workers, and speed is slow, and efficient is low.

Summary of the invention

The utility model purpose is to overcome existing pipe to the shortcoming that bonding tool exists, and a kind of laborsaving, coil pincers automatically efficiently are provided.

The technical scheme that the utility model adopted is a kind of automatic coil pincers, it comprises clamping device, its structural feature is to be fixed with on the clamping device drive unit, clamping device comprises handle, clamp, rolling member is arranged in the clamp, drive unit is fixed on the clamping device, and roller and power set are housed on the drive unit.

Operation principle of the present utility model is: utilizes rolling member to drive the pipe fitting rotation, substitutes manually-operated with mechanical force, and laborsaving, speed is fast, the efficient height, and the rolling member in the while clamp has overcome pipe wrench will be with the shortcoming of pipe rotation, therefore required operating space is little, simple to operate.

Clamping device is similar to general vice, and there is a jointed shaft centre, and an end is a handle, and the other end is a clamp, the both sides structural similarity of clamp, and a rolling member is arranged respectively at top, and their center of circle and pipe fitting center of circle angle α are less than 180 °.

In order to make rolling member stressed evenly, angle α is preferably 120 °, and two rolling members and roller are evenly arranged on the circumference.

There are two roller symmetries to be fixed on the both sides of handle, coaxial arrangement.

Advantage of the present utility model is that simple in structure, mechanical force substitutes manually-operated, and laborsaving, speed is fast, the efficient height, and the connection tight ness rating of increase pipe, required operating space is little.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1

Fig. 2 is the vertical view of Fig. 1

Fig. 3 is the structural representation of the utility model embodiment 2

Wherein: 1 clamping device, 11 handles, 12 clamps, 13 rolling members, 14 jointed shafts, 2 pipe fittings, 3 drive units, 31 rollers, 32 power set

The specific embodiment

Below in conjunction with view the utility model is described in detail, the following examples can make the professional and technical personnel more understand the present invention, but do not limit the present invention in any form.

Embodiment 1, as Fig. 1, shown in Figure 2, a kind of automatic coil pincers, comprise clamping device 1, drive unit 3, clamping device 1 comprises handle 11, clamp 12, rolling member 13 is arranged in the clamp 12, and drive unit 3 is fixed on the clamping device 1, and roller 31 and power set 32 are housed on the drive unit 3, two coaxial both sides that are fixed on handle 11 of roller 31 symmetries, one another is a driven pulley for driving wheel and power set 32 join, and plays support tubes, strengthen the effect of frictional force, the similar scissors shape that is of clamping device 1 to general vice, it is handle 11 that there are a jointed shaft 14, one ends the centre, and the other end is a clamp 12, the both sides structural similarity of clamp 12, a rolling member 13 is arranged respectively at top, and rolling member 13 axis are fixed, the outer ring rotation, can be bearing etc., their center of circle forms the round center of circle (being the center of circle of pipe fitting 2) angle α less than 180 ° with them and roller 31, is generally 120 °, and common two rolling members 13 are evenly arranged on the circumference with roller 31.Power set 32 can be motor, high-pressure blast etc., and the purpose of roller 31 is in order to drive pipe fitting 2 rotations, to require its frictional force big, can be making of rubber material or surfaces such as metal, plastics and make dentation.

Embodiment 2, as shown in Figure 3, a roller 31 only arranged, and power set 32 join, and drive pipe fitting 2 rotations, and it is identical with last example that all the other do not state part.

Claims

1, a kind of automatic coil pincers, it comprises clamping device (1), it is characterized in that, be fixed with drive unit (3) on the clamping device (1), clamping device (1) comprises handle (11), clamp (12), rolling member (13) is arranged in the clamp (12), roller (31) and power set (32) are housed on the drive unit (3).

2, automatic coil pincers according to claim 1, it is characterized in that, clamping device (1) is the scissors shape, there is a jointed shaft (14) centre, one end is handle (11), and the other end is clamp (12), the both sides structural similarity of clamp (12), a rolling member (13) is arranged respectively at top, and their center of circle forms the center of circle angle α of circle less than 180 ° with them and roller (31).

3, automatic coil pincers according to claim 2 is characterized in that angle α is 120 °.

4, automatic coil pincers according to claim 2 is characterized in that two rolling members (13) are evenly arranged on the circumference with roller (31).

5, automatic coil pincers according to claim 1 is characterized in that having two rollers (31) symmetry to be fixed on the both sides of handle (11).

6, automatic coil pincers according to claim 5 is characterized in that two rollers (31) are coaxial.