CN203426295U

CN203426295U - Necking down tool

Info

Publication number: CN203426295U
Application number: CN201320425426.2U
Authority: CN
Inventors: 丁水元; 丁菲; 张秋芳
Original assignee: SUZHOU YUANFANG PACKAGING Co Ltd
Current assignee: SUZHOU YUANFANG PACKAGING Co Ltd
Priority date: 2013-07-17
Filing date: 2013-07-17
Publication date: 2014-02-12
Anticipated expiration: 2023-07-17

Abstract

The utility model relates to a necking down tool which comprises a necking down head and a holding handle. The necking down head is provided with a first necking down arm, a second necking down arm, a third necking down arm and a fourth necking down arm, and the four necking down arms form a round opening after being connected. The two ends of the first necking down arm are hinged to one end of the second necking down arm and one end of the third necking down arm respectively in a pivoted mode around a first pivoting shaft and a second pivoting shaft, and the other end of the second necking down arm is hinged to one end of the fourth necking down arm in a pivoted mode around the second pivoting shaft. The holding handle comprises a first handle body and a second handle body, one end of the first handle body is locked at the other end of the third necking down arm, and one end of the second handle body is locked at the other end of the fourth necking down arm. By means of the necking down tool, quick necking down of a thin-wall pipe can be achieved, the structure is simple, operation is convenient, cost is low, the economical property is good, and the necking down tool is suitable for being used by middle and small-sized enterprises.

Description

A kind of reducing instrument

Technical field

The utility model relates to a kind of reducing instrument, is specifically related to a kind of reducing instrument of pipe fitting part.

Background technology

In prior art, pipe fitting part is as the spacer in bearing type water tank, during installation, reducing need first be carried out in one end, traditional reducing method adopts the method for knocking with hand hammer after gas welding heating to carry out reducing, cause reducing surface to be prone to ripple, pit, not round and smooth phenomenon, affect product design attractive in appearance, ratio of briquetting is low, labour intensity is large, and efficiency is low.People want to solve the mechanization problem of necking down tubes always for a long time, but fail to solve always.

Utility model content

The utility model object is that a kind of simple in structure, with low cost and easy to operate reducing instrument is provided in order to overcome the deficiencies in the prior art.

For achieving the above object, the technical solution adopted in the utility model is: a kind of reducing instrument, comprise reducing head and gripping handle, described reducing head has the first reducing arm, the second reducing arm, the 3rd reducing arm and the 4th reducing arm that forms a circular bore between connection afterwards; Described the first reducing arm two ends respectively with the second reducing arm, the 3rd reducing arm one end can be hinged each other pivotally around the first pivotal axis, the second pivotal axis, and the described second reducing arm other end and the 4th reducing arm one end can be hinged each other pivotally around the second pivotal axis; Described gripping handle has first handle and second handle, and described first handle one end is locked on the 3rd reducing arm other end; Described second handle one end is locked on the 4th reducing arm other end.

Preferably, between described first handle and second handle, be provided with spring.

Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:

A kind of reducing instrument of the present utility model, while needing reducing, both hands are broken first handle and second handle into two with one's hands, each other can be pivotally each other hinged the first reducing arm, the second reducing arm, the 3rd reducing arm and the 4th reducing arm outwards open, reducing part to be needed is put into it, both hands compress gripping handle with strength, can realize the quick reducing of thin-wall pipe, simple in structure, easy to operate, particularly cost is very cheap, and economic performance is good, is very beneficial for medium-sized and small enterprises and uses.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:

Accompanying drawing 1 is the structural representation of a kind of reducing instrument of the present utility model;

Wherein: 1, the first reducing arm; 2, the second reducing arm; 3, the 3rd reducing arm; 4, the 4th reducing arm; 5, first handle; 6, second handle; 7, the first pivotal axis; 8, the second pivotal axis; 9, spring.

The specific embodiment

Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.

Accompanying drawing 1 is a kind of reducing instrument described in the utility model, comprises reducing head and gripping handle, and described reducing head has the first reducing arm 1, the second reducing arm 2, the 3rd reducing arm 3 and the 4th reducing arm 4 that forms a circular bore between connection afterwards; Described the first reducing arm 1 two ends respectively with the second reducing arm 2, the 3rd reducing arm 3 one end can be hinged each other pivotally around the first pivotal axis 7, the second pivotal axis 8, and described second reducing arm 2 other ends and the 4th reducing arm 4 one end can be hinged each other pivotally around the second pivotal axis 8; Described gripping handle has first handle 5 and second handle 6, and described first handle 5 one end are locked on the 3rd reducing arm 3 other ends; Described second handle 6 one end are locked on the 4th reducing arm 4 other ends; Between described first handle 5 and second handle 6, be provided with spring 9.While needing reducing, both hands are broken first handle 5 and second handle 6 into two with one's hands, each other can be pivotally each other hinged the first reducing arm 1, the second reducing arm 2, the 3rd reducing arm 3 and the 4th reducing arm 4 outwards open, reducing part to be needed is put into it, both hands compress gripping handle with strength, can realize the quick reducing of thin-wall pipe, simple in structure, easy to operate, particularly cost is very cheap, economic performance is good, is very beneficial for medium-sized and small enterprises and uses.

Below be only concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, within all dropping on the utility model rights protection scope.

Claims

1. a reducing instrument, comprises reducing head and gripping handle, it is characterized in that: described reducing head has the first reducing arm, the second reducing arm, the 3rd reducing arm and the 4th reducing arm that forms a circular bore between connection afterwards; Described the first reducing arm two ends respectively with the second reducing arm, the 3rd reducing arm one end can be hinged each other pivotally around the first pivotal axis, the second pivotal axis, and the described second reducing arm other end and the 4th reducing arm one end can be hinged each other pivotally around the second pivotal axis; Described gripping handle has first handle and second handle, and described first handle one end is locked on the 3rd reducing arm other end; Described second handle one end is locked on the 4th reducing arm other end.

2. a kind of reducing instrument according to claim 1, is characterized in that: between described first handle and second handle, be provided with spring.