CN111963804A

CN111963804A - Pipe joint

Info

Publication number: CN111963804A
Application number: CN202010889121.1A
Authority: CN
Inventors: 雷凯; 高云
Original assignee: Xinjiang Bayi Iron and Steel Co Ltd
Current assignee: Xinjiang Bayi Iron and Steel Co Ltd
Priority date: 2020-08-29
Filing date: 2020-08-29
Publication date: 2020-11-20

Abstract

The invention discloses a pipe joint, which comprises a main pipe and a fixed pipe, wherein a T-shaped hollow push plate is fixedly arranged in the main pipe, and a sliding clamping sleeve is sleeved outside the main pipe in a matching manner; the fixed pipe is internally and sequentially provided with a rotary valve plate and two positioning pin shafts which are horizontally arranged at intervals from inside to outside, one sliding plate with a sliding groove slides back and forth along the positioning pin shafts, the inner side end of the top surface of the sliding plate is connected with the back surface of the upper part of the valve plate through a connecting rod, the inner side end of the top surface of the sliding plate is also provided with an extension spring, a hook is transversely arranged in a pipe body close to the orifice of the fixed pipe, the outer side end of the extension spring is connected with the hook, the outer side end of the sliding plate is provided with a stop block, and correspondingly, the outer walls of the upper part and the lower part of the fixed pipe are respectively provided with. The connector can adapt to the occasion of frequently plugging and unplugging the connecting pipe body, and normal production is ensured.

Description

Pipe joint

Technical Field

The present invention relates to a pipe joint.

Background

The pipe joint applied in the prior art mainly has the problems that the oil is easy to leak outwards after being detached from the rolling mill, and the locking plate inside the pipe joint cannot be fully opened after being installed on the rolling mill.

Disclosure of Invention

The invention aims to provide a pipe joint which can adapt to occasions of frequently inserting and pulling a connecting pipe body and ensure normal production.

The technical scheme for achieving the purpose is that the pipe joint comprises a main pipe and a fixed pipe, wherein a T-shaped hollowed-out push plate is fixedly arranged in the main pipe, a clamping sleeve is sleeved outside the main pipe in a matched mode, a positioning groove is correspondingly arranged on the upper inner wall and the lower inner wall of the clamping sleeve respectively, a through hole is formed in each of the upper inner wall and the lower inner wall of the main pipe corresponding to the positioning groove, a positioning steel ball capable of sliding into the positioning groove is arranged in each through hole, a positioning clamping ring is further arranged on the outer wall of the main pipe, a spring groove is formed in the inner peripheral wall of the clamping sleeve, and a spring abutting against the positioning clamping ring is arranged in each spring groove; the fixed pipe is internally and sequentially provided with a rotary valve plate and two positioning pin shafts which are horizontally arranged at intervals from inside to outside, one sliding plate with a sliding groove slides back and forth along the positioning pin shafts, the inner side end of the top surface of the sliding plate is connected with the back surface of the upper part of the valve plate through a connecting rod, the inner side end of the top surface of the sliding plate is also provided with an extension spring, a hook is transversely arranged in a pipe body close to the orifice of the fixed pipe, the outer side end of the extension spring is connected with the hook, the outer side end of the sliding plate is provided with a stop block, and correspondingly, the outer walls of the upper part and the lower part of the fixed pipe are respectively provided with.

The stop groove on the fixed pipe can be clamped on the steel ball in the mother pipe to carry out connection and fixation and mutual disconnection operations through the snap ring, the spring, the steel ball and the clamping sleeve structure arranged on the mother pipe; after the main pipe is connected with the fixed pipe, the hollow-out push plate on the main pipe just enables the sliding plate on the fixed pipe to be pushed rightwards to enable the valve plate to be completely opened, and after the main pipe is separated from the fixed pipe, the sliding plate on the fixed pipe can be completely closed along the two pin shafts under the action of the extension spring. The invention can be better applied to the pipeline connection of equipment such as rolling mills and the like which need oil supply, liquid and the like; the device is particularly suitable for pipelines which need to be frequently connected and disconnected. When the main pipe is separated from the fixed pipe, the problem that oil in the fixed pipe flows outwards and the problem that the fixed pipe cannot be automatically and thoroughly sealed can be avoided. The maintenance operation of the equipment can be conveniently carried out by operators such as steel rolling and the like.

Drawings

The present invention will be described in further detail below with reference to the accompanying drawings.

FIG. 1 is a front sectional view showing a valve plate opened after a main pipe is combined with a fixed pipe according to the present invention;

FIG. 2 is a front cross-sectional view of the fixed tube valve plate self-latching.

Detailed Description

A pipe joint comprises a main pipe 1 and a fixed pipe 14, wherein a T-shaped hollow push plate 15 is fixedly arranged in the main pipe 1, a clamping sleeve 4 is sleeved outside the main pipe 1, a positioning groove 9 is correspondingly arranged on the upper inner wall and the lower inner wall of the clamping sleeve 4 respectively, a through hole is formed in the upper inner wall and the lower inner wall of the main pipe corresponding to the positioning groove 9 respectively, and a positioning steel ball 5 capable of sliding into the positioning groove 9 is arranged in the through hole respectively. The outer wall of the main pipe 1 is also provided with a positioning snap ring 2, the inner peripheral wall of the cutting sleeve 4 is provided with a spring groove, and a spring 3 which is abutted against the positioning snap ring 2 is arranged in the spring groove; in fig. 1, the spring 3 is compressed leftwards, the positioning steel ball 5 falls into the positioning groove 9, and the main pipe 1 can be conveniently taken down.

The fixed pipe 14 is internally provided with a rotary valve plate 12 and two positioning pin shafts 8 which are horizontally arranged at intervals in sequence from inside to outside, and the rotary valve plate 12 rotates around a central shaft 13. A sliding plate 10 with a sliding groove slides back and forth along the positioning pin shaft 8, the inner side end of the top surface of the sliding plate 10 is connected with the back of the upper part of the valve plate 12 through a connecting rod 11, an extension spring 16 is further arranged at the inner side end of the top surface of the sliding plate 10, a hook 7 is transversely arranged in the pipe body close to the pipe orifice of the fixed pipe, the outer side end of the extension spring 16 is connected with the hook 7, a stop block 6 is arranged at the outer side end of the sliding plate 10, and correspondingly, stop grooves 17 matched with the steel balls 5 are respectively arranged on the outer walls of the upper part and the lower part of the fixed pipe 14.

When the valve plate device works, the main pipe 1 and the fixed pipe 14 are relatively inserted together, the hollow push plate 15 pushes the sliding plate 10 in the fixed pipe 14 to move rightwards, and then the valve plate 12 is pushed to rotate, so that a passage in the fixed pipe 14 is opened. While at the same time the tension spring 16 is tensioned with a tendency to return. The steel ball 5 is clamped in the stop groove 17 on the fixed pipe 14 to realize the positioning of the cutting sleeve 4. When the main pipe 1 and the fixed pipe 14 need to be separated from each other, the clamping sleeve 4 is pushed leftwards, the steel ball 5 is reset to fall into the positioning groove 9, the fixed pipe 14 is pulled out, and the sliding plate 10 drives the connecting rod 11 to enable the valve plate 12 to rapidly overturn and close the fixed pipe 14 under the action of the extension spring 16. The two positioning pins 8 are used for limiting the opening and closing limit states of the valve plate 12.

The invention has smart structure concept and flexible valve plate action, and is particularly suitable for working occasions requiring frequent plugging and unplugging of pipelines in hot rolling.

Claims

1. The utility model provides a coupling, includes female pipe and fixed pipe, characterized by: a T-shaped hollow push plate is fixedly arranged in the main pipe, a cutting sleeve is sleeved outside the main pipe in a matching manner, a positioning groove is correspondingly arranged on the upper inner wall and the lower inner wall of the cutting sleeve respectively, a through hole is arranged on the upper inner wall and the lower inner wall of the main pipe corresponding to the positioning groove respectively, a positioning steel ball capable of sliding into the positioning groove is arranged in each through hole, a positioning snap ring is also arranged on the outer wall of the main pipe, a spring groove is arranged on the inner peripheral wall of the cutting sleeve, and a spring which is abutted against the positioning snap ring is arranged in each spring groove; the fixed pipe is internally and sequentially provided with a rotary valve plate and two positioning pin shafts which are horizontally arranged at intervals from inside to outside, one sliding plate with a sliding groove slides back and forth along the positioning pin shafts, the inner side end of the top surface of the sliding plate is connected with the back surface of the upper part of the valve plate through a connecting rod, the inner side end of the top surface of the sliding plate is also provided with an extension spring, a hook is transversely arranged in a pipe body close to the orifice of the fixed pipe, the outer side end of the extension spring is connected with the hook, the outer side end of the sliding plate is provided with a stop block, and correspondingly, the outer walls of the upper part and the lower part of the fixed pipe are respectively provided with.