CN203671072U

CN203671072U - Improved high pressure quick pipe connector

Info

Publication number: CN203671072U
Application number: CN201320760969.XU
Authority: CN
Inventors: 卫德义
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-25
Filing date: 2013-11-25
Publication date: 2014-06-25
Anticipated expiration: 2023-11-25

Abstract

The utility model relates to an improved high pressure quick pipe connector which comprises an outer pipe (1). The outer pipe can be a straight through pipe, a bent pipe, a three-way pipe or a multi-way pipe. The improved high pressure quick pipe connector is characterized in that at least one end port of the outer pipe is provided with a connecting inserting pipe (3), a sealing ring (4), an elastic pipe clamp (5) and a pipe clamp locking clip (6), and the pipe clamp locking clip is fixed into the end port by compressing the caliber of the tail port of the end port. According to the improved high pressure quick pipe connector, the pipe clamp locking clip is fixed into the end port by compressing the caliber of the tail port of the end port, the assembling of the pipe clamp locking clip is simple, reliable and quick, and particularly suitable for the mechanized production line assembling, a supporting inner pipe in the connecting inserting pipe can be removed if the connecting inserting pipe (3) is made of hard material, so that structure is simplified and cost is reduced.

Description

A kind of improved high-voltage quick coupling

Technical field

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

Background technique

In prior art, the Chinese patent ZL201220571369.4 " high-pressure quick pipe joint " of the applicant's earlier application, it utilizes Elastic tube clamp and outer tube port to inside contract the cooperation of the prominent ring in footpath can form high pressure within the outer tube time, the axial tearaway load that pipe inner high voltage is caused is transformed into the radial clamping power of Elastic tube clamp to connecting insertion, like this, overpressure is larger, Elastic tube clamp is tighter to the clamping of connecting insertion, the connection of pipe joint is more reliable, high-voltage performance is also better, thereby has 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, feature fast.But wherein the prominent ring of the undergauge in outer tube port is integrative-structure with outer tube, makes processing more difficult, particularly the endoporus of the prominent ring of its undergauge is not easy to measure, and precision is difficult to ensure.For this reason, the applicant separates prominent undergauge ring in Chinese patent 201320402302.2 with outer tube, independently be provided with a pipe clamp locking strap, this pipe clamp locking strap is by outside thread outside in tube opening, like this, pipe clamp locking strap can independently be processed, and reduces difficulty of processing, has ensured the machining accuracy of the prominent ring of undergauge endoporus.But this screw connection structure is from the angle of mechanical production line assembling, simple not enough and convenient.In addition, in above-mentioned two patents, be all provided with an inner tube, this inner tube can play the effect of supporting internal diameter to connecting insertion, make sealing more reliable, but, if connecting insertion adopts harder, indeformable material (as: ebonite plastics, metal etc.), the effect of inner tube is just not too large, increases inner tube and makes on the contrary complex structure, cost increase.

Model utility content

The purpose of this utility model is for the deficiency existing in prior art, and a kind of improved high-voltage quick coupling is provided, simultaneously simplified structure, reduce costs.

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, in at least one port of this outer tube, be provided with from inside to outside the first hole enlargement step, the second hole enlargement step and the 3rd hole enlargement step, its improvements are: connecting insertion is housed successively in this port, seal ring, Elastic tube clamp and pipe clamp locking strap, described connecting insertion inserts this port, its front end is resisted against on the first hole enlargement step, described seal ring is enclosed within on connecting insertion, and be resisted against on the second hole enlargement step, described pipe clamp locking strap is positioned at described port afterbody, its front end is resisted against on the 3rd hole enlargement step, described pipe clamp locking strap is connected firmly on the inner tubal wall of described port or by compressing this port tail mouth bore and is fixed in this port by its outside thread, in the inner hole wall of described pipe clamp locking strap, be provided with the prominent ring of a undergauge, and be provided with a 4th 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 the 4th described hole enlargement step.

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

In described port, be also provided with an inner tube, the front end of described inner tube is with a flange-like edge, and this inner tube is arranged on the front end of connecting insertion, and the flange-like edge of described inner tube front end is resisted against on the first hole enlargement step.

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

On the inner hole wall of described Elastic tube clamp evagination chuck, be provided with the radial streak that cross section is profile of tooth.

The beneficial effects of the utility model are as follows:

One, the utility model has adopted the mode Duct fixing clamp locking strap of compression outer tube port tail mouth bore, makes the assembling of pipe clamp locking strap simply, reliably, fast, is specially adapted to mechanical production line assembling.

If two connecting insertions adopt hard materials, can remove the support inner tube in connecting insertion, thereby simplified structure, reduce costs.

Structure of the present utility model and working principle are described below with reference to the accompanying drawings.

Brief description of the drawings

Fig. 1 is the overall structure schematic diagram of the utility model (embodiment 1).

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

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

Fig. 4 is the right elevation of Fig. 3.

Fig. 5 is the utility model embodiment 2 structural representation.

Fig. 6 is the utility model embodiment 3 structural representation.

In figure: 1. outer tube, 1-1. the first hole enlargement step, 1-2. the second hole enlargement step, 1-3. the 3rd hole enlargement step, 1-4. port tail mouth, 2. inner tube, 2-1. flange-like edge, 3. connecting insertion, 4. seal ring, 5. Elastic tube clamp, the prominent ring of 5-1. hole enlargement, 5-2. Elastic tube clamp evagination chuck, 5-3. radial streak, 6. pipe clamp locking strap, the prominent ring of 6-1. undergauge, 6-2. the 4th hole enlargement step, 7. connecting tube.

Embodiment

Embodiment 1

Referring to Fig. 1～4, it has an outer tube (1), this outer tube can be a straight-through tube, bend pipe, three-way pipe or many siphunculus, this example illustrates its structure taking outer tube (1) as straight-through tube as example, in at least one port of this outer tube, be provided with from inside to outside the first hole enlargement step (1-1), the second hole enlargement step (1-2) and the 3rd hole enlargement step (1-3), connecting insertion (3) is housed successively in this port, seal ring (4), Elastic tube clamp (5) and pipe clamp locking strap (6), described connecting insertion inserts this port, its front end is resisted against on the first hole enlargement step, described seal ring (4) is enclosed within on connecting insertion, and be resisted against on the second hole enlargement step, described pipe clamp locking strap is positioned at the afterbody of described port, its front end is resisted against on the 3rd hole enlargement step, this pipe clamp locking strap is fixed in this port by this port tail mouth (1-4) bore of compression, in the inner hole wall of described pipe clamp locking strap, be provided with the prominent ring of a undergauge (6-1), and be provided with a 4th 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 the 4th described hole enlargement step.The another port of this exception pipe is provided with another kind of joint structure, and it and this high-pressure pipe connector are combined together, and completes being tightly connected of connecting insertion (3) and connecting tube (7).

The working procedure of this high-pressure pipe connector is: in the time not passing into high pressure in outer tube (1), connecting insertion (3), seal ring (4) and Elastic tube clamp (5) are in installing positioning states, as shown in Figure 1; In the time passing into high pressure in outer tube, its pressure promotes connecting insertion (3), seal ring (4) and Elastic tube clamp (5) and outside port, moves together, it is closed and clamp connecting insertion (3) immediately in the time that Elastic tube clamp (5) contacts pipe clamp locking strap (6), connecting insertion is stopped mobile, meanwhile, overpressure is also pushed seal ring (4) to the front end of Elastic tube clamp, by port sealing, and pressure is larger, the radially chucking power of Elastic tube clamp is larger better with sealing seal ring, connecting insertion can not be thrown off, and sealability is high.

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 undergauge (6-1) of described pipe clamp locking strap is trapezoidal again, and the front end of described Elastic tube clamp is provided with evagination chuck (5-2).In the time that evagination chuck touches the trapezoidal inclined plane of the prominent ring of undergauge, can go to 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, be provided with the radial streak that cross section is profile of tooth (5-3) on the inner hole wall of described Elastic tube clamp evagination chuck (5-2), profile of tooth wherein can be zigzag fashion, triangle or T shape etc.

Embodiment 2

Referring to Fig. 5, if connecting insertion (3) adopts softer material, on embodiment 1 basis, an inner tube (2) need be set in described port, the front end of described inner tube is with a flange-like edge (2-1), and this inner tube is arranged between the first hole enlargement step (1-1) and the internal diameter of connecting insertion (3).It plays support and connection cannula inner diameter and makes connecting insertion obtain the effect of radial location.

Embodiment 3

Referring to Fig. 6, this example is basic identical with embodiment 1 structure, and difference is that described pipe clamp locking strap (6) connects firmly on the inner tubal wall of described port by its outside thread.This routine connecting insertion (3) adopts hard material to make, and can remove inner tube, and simplified structure, reduces costs.

Claims

1. an improved high-voltage quick coupling, it has an outer tube (1), this outer tube can be a straight-through tube, bend pipe, three-way pipe or many siphunculus, in at least one port of this outer tube, be provided with from inside to outside the first hole enlargement step (1-1), the second hole enlargement step (1-2) and the 3rd hole enlargement step (1-3), it is characterized in that: connecting insertion (3) is housed successively in this port, seal ring (4), Elastic tube clamp (5) and pipe clamp locking strap (6), described connecting insertion inserts this port, its front end is resisted against on the first hole enlargement step, described seal ring (4) is enclosed within on connecting insertion, and be resisted against on the second hole enlargement step, described pipe clamp locking strap is positioned at described port afterbody, its front end is resisted against on the 3rd hole enlargement step, described pipe clamp locking strap is connected firmly on the inner tubal wall of described port or by compressing this port tail mouth bore and is fixed in this port by its outside thread, the inner hole wall of described pipe clamp locking strap is provided with the prominent ring of a undergauge (6-1), and be provided with a 4th 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 the 4th described hole enlargement step.

2. improved high-voltage quick coupling according to claim 1, it is characterized in that: in described port, be also provided with an inner tube (2), the front end of described inner tube is with a flange-like edge (2-1), this inner tube is arranged on the front end of connecting insertion, and the flange-like edge of described inner tube front end is resisted against on the first hole enlargement step.

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

4. improved high-voltage quick coupling according to claim 3, its feature: be provided with the radial streak that cross section is profile of tooth (5-3) on the inner hole wall of described Elastic tube clamp evagination chuck (5-2).