CN203348772U

CN203348772U - Improved high-pressure rapid pipe joint

Info

Publication number: CN203348772U
Application number: CN 201320402302
Authority: CN
Inventors: 卫德义
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-05
Filing date: 2013-07-05
Publication date: 2013-12-18
Anticipated expiration: 2023-07-05

Abstract

The utility model relates to an improved high-pressure rapid pipe joint comprising an outer pipe (1). The outer pipe (1) can be a straight through pipe, an elbow pipe, a t-branch pipe or a multi-branch pipe. The improved points include that an inner pipe (2), a connecting inserting pipe (3), a seal ring (4), an elastic pipe clamp (5) and a pipe collar clamp (6) are arranged in at least one port of the outer pipe. A pipe clamp locking mechanism in the port of the outer pipe is separated from the outer pipe, and the pipe collar clamp is added, so that the process on the port of the outer pipe is easier, working efficiency is increased, inner ring holes of the pipe collar clamps ares easy to measure during the process, and processing accuracy is increased.

Description

A kind of improved high-pressure quick pipe joint

Technical field

The utility model relates to a kind of high-pressure quick pipe joint, relates in particular to a kind of improved high-pressure quick pipe joint.

Background technique

In prior art, the applicant is at the Chinese patent ZL201220571369.4 of first to file " high-pressure quick pipe joint ", it utilizes Elastic tube clamp and outer tube port to inside contract the cooperation of the prominent ring in footpath in the time of can forming high pressure within the outer tube, the axial tearaway load that the pipe inner high voltage is caused is transformed into the radial clamping power of Elastic tube clamp to connecting insertion, simultaneously, still seal ring is clamped, like this, overpressure is larger, Elastic tube clamp is to the clamping of connecting insertion and tighter to the clamping of seal ring, the connection of pipe joint and sealing are more reliable, high-voltage performance is also better, thereby thoroughly solved the poor problem of existing joint high voltage performance.Moreover, it has installation without instrument, all adopts plug-in mounting, easy for installation, characteristics fast.But wherein the prominent ring of the undergauge in the outer tube port is integrative-structure with outer tube, makes processing more difficult, the endoporus of the prominent ring of its undergauge is not easy to measure, and precision is difficult to guarantee.

The model utility content

The purpose of this utility model is for the deficiency existed in prior art, and a kind of improved high-pressure quick pipe joint is provided, and reduces difficulty of processing, improves accuracy of manufacturing.

For achieving the above object, the technical solution of the utility model is as follows:

It has an outer tube, this outer tube can be a straight-through tube, bend pipe, three-way pipe or many siphunculus, be provided with from inside to outside the first hole enlargement step at least one port of this outer tube, the second hole enlargement step and the 3rd hole enlargement step, its improvements are: inner tube is housed successively in this port, connecting insertion, seal ring, Elastic tube clamp and pipe clamp locking strap, the front end of described inner tube is with a flange-like edge, this flange-like edge is resisted against on the first hole enlargement step, be in control axial installation location in making, described connecting insertion sleeve on inner pipe, and its front end is resisted against on the flange-like edge of inner tube front end, make connecting insertion obtain axially installing location, described seal ring is enclosed within on connecting insertion, and be resisted against on the second hole enlargement step, make seal ring obtain axially installing location, described pipe clamp locking strap connects firmly on the inner tubal wall of described port, and its front end is resisted against on the 3rd hole enlargement step, make the pipe clamp locking strap obtain axially installing location, be provided with the prominent ring of a undergauge in the inner hole wall of described pipe clamp locking strap, and be provided with the 4th a hole enlargement step at the afterbody of this inner hole wall, described Elastic tube clamp sleeve is between described connecting insertion and pipe clamp locking strap, and the tail end of Elastic tube clamp is with the prominent ring of a hole enlargement, the prominent ring of this hole enlargement is resisted against on described the 4th hole enlargement step, make Elastic tube clamp obtain axially installing location.

The further improved technological scheme of the utility model is as follows:

The cross section of the prominent ring of described undergauge is trapezoidal, and the front end of described Elastic tube clamp is provided with the evagination chuck.

Be provided with coarse radial streak or boss on the inner hole wall of described Elastic tube clamp evagination chuck.

The beneficial effects of the utility model are as follows:

One, the pipe clamp locking mechanism (the prominent ring of undergauge) that the utility model will have in the outer tube port separates with outer tube, separately established a pipe clamp locking strap, like this, not only make the processing of outer tube port become simple, improved working efficiency, simultaneously, also make pipe clamp locking strap its endoporus in course of working easily measure, improved machining accuracy.

Two, separating of pipe clamp locking strap and outer tube, can make the two select different materials, because the pipe clamp locking strap will bear high pressure, so it must adopt the firm material making such as metal, after separating, outer tube may be selected to this lower plastic or other material making, thereby saves precious metal, reduces costs.

The accompanying drawing explanation

Fig. 1 is the utility model overall structure scheme of installation.

Fig. 2 is the sectional view of Elastic tube clamp.

The sectional view of Fig. 3 pipe clamp locking strap.

The right elevation of Fig. 4 Fig. 3.

Embodiment

Referring to Fig. 1,2,3,4, a kind of improved high-pressure quick pipe joint, it has an outer tube (1), and this outer tube can be a straight-through tube, bend pipe, three-way pipe or many siphunculus, and the straight-through tube of below take illustrates its structure as example.Be provided with from inside to outside the first hole enlargement step (1-1) at least one port of described outer tube, the second hole enlargement step (1-2) and the 3rd hole enlargement step (1-3), inner tube (2) is housed successively in this port, connecting insertion (3), seal ring (4), Elastic tube clamp (5) and pipe clamp locking strap (6), the front end of described inner tube is with a flange-like edge (2-1), this flange-like edge is resisted against on the first hole enlargement step, be in control axial installation location in making, described connecting insertion sleeve on inner pipe, and its front end is resisted against on the flange-like edge of inner tube front end, make connecting insertion obtain axially installing location, described seal ring (3) is enclosed within on connecting insertion, and be resisted against on the second hole enlargement step, make seal ring obtain axially installing location, described pipe clamp locking strap connects firmly on described port inner tubal wall, and its front end is resisted against on the 3rd hole enlargement step, make the pipe clamp locking strap obtain axially installing location, wherein the pipe clamp locking strap can adopt and be threaded with connecting firmly of outer tube inner hole wall, if outer tube adopts plastic materials, this pipe clamp locking strap can be injected in outer tube, thereby form integrative-structure with outer tube.Be provided with the prominent ring of a undergauge (6-1) in the inner hole wall of described pipe clamp locking strap, and be provided with the 4th a hole enlargement step (6-2) at the afterbody of this inner hole wall, described Elastic tube clamp sleeve is between described connecting insertion and pipe clamp locking strap, and the tail end of this Elastic tube clamp is with the prominent ring of a hole enlargement (5-1), the prominent ring of this hole enlargement is resisted against on described the 4th hole enlargement step, makes Elastic tube clamp obtain axially installing location.The another port of this exception pipe is provided with the joint structure identical with the port, thereby completes being tightly connected of two connecting insertions.

The working procedure of this high-pressure pipe connector is: while in outer tube (1), not passing into high pressure, inner tube (2), connecting insertion (3), seal ring (4) and Elastic tube clamp (5) are in installing positioning states, as shown in Figure 1, while in outer tube, passing into high pressure, its pressure promotes inner tube (2), connecting insertion (3), seal ring (4) and Elastic tube clamp (5) move together outside port, it is closed and clamp connecting insertion (3) immediately when Elastic tube clamp contacts pipe clamp locking strap (6), connecting insertion stops mobile, at this moment, inner tube (2) continues to move outside port, until the flange-like edge of its front end promotes the front end that seal ring contacts Elastic tube clamp (5), seal ring (4) is clamped by the flange-like edge of inner tube and the front end of Elastic tube clamp, thereby play reliable seal action, and pressure is larger, the radially chucking power of Elastic tube clamp and the axial chucking power of seal ring are larger, connecting insertion more can not be thrown off, the sealability of seal ring is higher.

Referring to Fig. 2,3,4, in order further to strengthen the clamping dynamics of elasticity clamp, the cross section of the prominent ring of the undergauge of described pipe clamp locking strap (6-1) is trapezoidal again, and the front end of described Elastic tube clamp is provided with evagination chuck (5-2).When the evagination chuck touches the trapezoidal inclined plane of the prominent ring of undergauge, can go to the undergauge summit along trapezoidal inclined plane, make Elastic tube clamp more and more tighter to the clamping of connecting insertion.Skid when preventing that Elastic tube clamp is clamped and connected intubate (3), on the inner circle wall of the evagination chuck (5-2) of described Elastic tube clamp, be provided with coarse radial streak (5-3) or boss.

Claims

1. an improved high-pressure quick pipe joint, it has an outer tube (1), this outer tube can be a straight-through tube, bend pipe, three-way pipe or many siphunculus, be provided with from inside to outside the first hole enlargement step (1-1) at least one port of this outer tube, the second hole enlargement step (1-2) and the 3rd hole enlargement step (1-3), it is characterized in that: inner tube (2) is housed successively in this port, connecting insertion (3), seal ring (4), Elastic tube clamp (5) and pipe clamp locking strap (6), the front end of described inner tube is with a flange-like edge (2-1), this flange-like edge is resisted against on the first hole enlargement step, be in control axial installation location in making, described connecting insertion sleeve on inner pipe, and its front end is resisted against on the flange-like edge of inner tube front end, make connecting insertion obtain axially installing location, described seal ring (4) is enclosed within on connecting insertion, and be resisted against on the second hole enlargement step, make seal ring obtain axially installing location, described pipe clamp locking strap connects firmly on the inner tubal wall of described port, and its front end is resisted against on the 3rd hole enlargement step, make the pipe clamp locking strap obtain axially installing location, be provided with the prominent ring of a undergauge (6-1) in the inner hole wall of described pipe clamp locking strap, and be provided with the 4th a hole enlargement step (6-2) at the afterbody of this inner hole wall, described Elastic tube clamp sleeve is between described connecting insertion and pipe clamp locking strap, and the tail end of Elastic tube clamp is with the prominent ring of a hole enlargement (5-1), the prominent ring of this hole enlargement is resisted against on described the 4th hole enlargement step, make Elastic tube clamp obtain axially installing location.

2. improved high-pressure quick pipe joint according to claim 1 is characterized in that: the cross section of the prominent ring of described undergauge (6-1) is trapezoidal, and the front end of described Elastic tube clamp is provided with evagination chuck (5-2).

3. improved high-pressure quick pipe joint according to claim 2, its feature: be provided with coarse radial streak or boss (5-3) on the inner hole wall of described Elastic tube clamp evagination chuck (5-2).