CN201330905Y

CN201330905Y - Conveying tube joint

Info

Publication number: CN201330905Y
Application number: CNU2008202311185U
Authority: CN
Inventors: 楚万明
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-26
Filing date: 2008-12-26
Publication date: 2009-10-21
Anticipated expiration: 2018-12-26

Abstract

The utility model provides a conveying tube joint. A joint body, a wedge-shaped tube and a connector are integrated to form a whole body; wherein, a gripper tube is positioned between the connector and the wedge-shaped tube; by the gripper tube, a hose or an aluminum-plastic tube tightly clings to the outer wall of the wedge-shaped tube; and a nut provided with a collet is screwed on the connector, and is used to press the gripper tube into the cavity of the connector. The conveying tube joint has the following characteristics: the inner hole of the gripper tube is shaped like a straight cylinder, and one port of the gripper tube is provided with a curved chamfer. Because the application point of the force of the gripper tube is concentrated on the circular line of the curved chamfer of the port, the gripper tube can apply extremely high pressure intensity on the pressed position of the hose (or the aluminum-plastic tube) even if little force is applied on the gripper tube, and consequently, the leak tightness of the joint can be greatly improved, so that the dropping, breakout and leakage phenomena of a tube can be thoroughly eliminated. Since the hose or the aluminum-plastic tube tightly clings to the outer wall of the wedge-shaped tube by the wall of the cylindrical inner hole of the gripper tube, the connection completely depends on the pressing force generated by the squeeze between the wedge-shaped tube and the gripper tube, so the hose or the aluminum-plastic tube almost cannot be damaged after being repetitively disassembled.

Description

The delivery pipe joint

Technical field

The utility model belongs to the delivery pipe accessory, specifically a kind of delivery pipe joint.

Background technique

At present, the extensive application of plastic-aluminum pipe reduces the installation cost of hot-water heating engineering greatly because it is easy for installation, cheap, with and be suitable for the characteristic of various occasions, make it more and more be subjected to people's favor.But in installation and using process, we find that the problem that the existing joint of plastic-aluminum pipe is exposed is more and more outstanding, now do following analysis in conjunction with its structural feature:

The aluminium plastic pipe joint that generally uses in the present technology, its adapter body, embedding pipe and connection mouth are as a whole, and the seal groove of embedding pipe outer wall is embedded with seal ring, and the nut spiral is connected on the connection mouth, and C shape retainer ring is between nut and connection mouth.During installation,, thereby the inwall of plastic-aluminum pipe is affixed on the seal ring of embedding pipe closely, makes its sealing by rotating screw cap compressing C shape retainer ring; Simultaneously C shape retainer ring is pressed into the inner chamber of connection mouth, binds round on the outer wall of plastic-aluminum pipe.The deficiency that this joint exists is: 1. because the fin on the C shape retainer ring inwall isolates hose surface easily, so through dismounting several times, the termination of flexible pipe has been scarred, this moment, only way was exactly that the pipe end of damaged is clipped; 2. seal ring is aging especially easily, changes cumbersome; Sealability is undesirable, occurs easily dripping running leaking phenomenon.When 3. keeping in repair, time-consuming, effort.

China patent CN2767805Y discloses a kind of water pipe adapter commonly used, form by adapter body, connection mouth, taper pipe, tube chamber and joint, adapter body, connection mouth, taper pipe are as a whole, tube chamber and joint are positioned at its axial location, the card pipe is between connection mouth, taper pipe, annular concave-convex groove on the card inner tube wall is affixed on the taper pipe outer wall closely with water pipe, and the nut spiral is connected in connection mouth, is used for the card pipe is pressed into the connection mouth inner chamber.This joint has alleviated the damage to water pipe to a certain extent, and sealability increases.But, unfavorable to the shutoff current because the inwall of card pipe is horn-like, and is provided with the annular concave-convex groove so its stressed branch cloth cover is still bigger, through repeatedly dismounting repeatedly, still there is the phenomenon of damage flexible pipe termination.Above-mentioned two kinds of joints are in many occasions, and such as the joint, branch family that floor heating divides water to wrap, after dismounting several times, pipeline does not have enough length to cause maintenance work very thorny for intercepting.

Summary of the invention

The purpose of this utility model is a kind of and delivery pipe joint of being convenient to repeatedly dismantle minimum to the damage of flexible pipe or plastic-aluminum pipe, solves the connectivity problem that flexible pipe, aluminium (copper) are moulded pipe and other pipeline, pipe fittings and appliance device better.

For achieving the above object, the technological scheme taked of the utility model is:

A kind of delivery pipe joint, nut by adapter body, taper pipe, connection mouth, card pipe and band collet is formed, adapter body, taper pipe and connection mouth are as a whole, the card pipe is between connection mouth and taper pipe, the card pipe is affixed on the outer wall of taper pipe closely with flexible pipe or plastic-aluminum pipe, and the nut spiral that has collet is connected on the connection mouth, is used for will the card pipe being pressed into the inner chamber of connection mouth, it is characterized in that: the endoporus of described card pipe is a straight-tube shape, and card pipe one port is provided with arc angling.

Be processed with outside thread on the described connection mouth, be processed with the internal thread that is complementary with it on the nut of band collet.

Be processed with internal thread on the described connection mouth, be processed with the outside thread that is complementary with it on the nut of band collet.

The above-mentioned delivery pipe joint that the utility model provides, because the point of action of card Guan Li concentrates on the ringed line of port arc angling, so, even the card pipe is bestowed very little power, the card pipe is all very high to the pressure at flexible pipe (or plastic-aluminum pipe) pressurized place, the sealability of joint is greatly improved, and that can thoroughly eradicate pipe-line system drips, runs, leaks phenomenon.Owing to block the tubular inner hole wall of pipe flexible pipe or plastic-aluminum pipe are affixed on the taper pipe outer wall closely, rely on taper pipe to realize being connected with the compressing power that extruding produced of blocking between the pipe fully, therefore dismounting repeatedly can damage flexible pipe or the generation of plastic-aluminum pipe hardly.In addition, this joint also has installation, safeguards characteristics such as simple, quick, efficient, and the delivery pipe that can be widely used in media such as various liquid, gas connects, and is particularly useful for floor heating and divides being connected of water bag and pipeline.

Description of drawings

Fig. 1 is embodiment one a front view

Fig. 2 is the A-A sectional view of Fig. 1

Fig. 3 is a B-B sectional view among Fig. 2

Fig. 4 is embodiment two a front view

Fig. 5 is A '-A ' sectional view of Fig. 4

Fig. 6 is B ' among Fig. 5-B ' sectional view

Among the figure: the 1-adapter body; The 2-taper pipe; The 3-connection mouth; The internal thread nut of 4-band collet; The outside thread nut of 4 '-band collet; 5-flexible pipe (or plastic-aluminum pipe); 6-card pipe; The 7-tube chamber.

Embodiment

As shown in Figure 1 to Figure 3, among the delivery pipe joint embodiment one that the utility model provides, this joint is made up of adapter body 1, taper pipe 2, connection mouth 3, card pipe 6 and the nut 4 that has a collet.Adapter body 1, taper pipe 2 and connection mouth 3 are as a whole, and adapter body 1 can be pipe fittingss such as threeway, four-way, valve, water nozzle, joint, is processed with outside thread on the connection mouth 3; Card pipe 6 is between connection mouth 3 and taper pipe 2, and card pipe 6 is affixed on the outer wall of taper pipe 2 closely with flexible pipe or plastic-aluminum pipe 5, and card pipe 6 endoporus are straight-tube shape, and inwall is no longer established fin or annular concave-convex groove, and card is managed 6 one ports and is provided with arc angling; Be processed with internal thread on the nut 4 of band collet, spiral is connected on the connection mouth 3, is used for card pipe 6 is pressed into the inner chamber of connection mouth 3.This joint adopts metal material or the making of other high-strength materials such as stainless steel.

During connection, the nut 4 of band collet, card pipe 6 are enclosed within on the flexible pipe (or plastic-aluminum pipe) 5 by shown in Figure 2; Flexible pipe (or plastic-aluminum pipe) 5 is enclosed within on the taper pipe 2, flexible pipe (or plastic-aluminum pipe) 5 is slightly firmly advanced, make its termination be horn-like; The nut 4 of band collet is screwed on the connection mouth 3; By screwing the nut 4 of band collet, card pipe 6 is pressed in the inner chamber of connection mouth 3, the structure of the nut 4 of band collet has the effect of pushing card pipe 6, thereby the inside and outside wall of flexible pipe (or plastic-aluminum pipe) 5 is combined closely with taper pipe 2 and card pipe 6 respectively, and tube chamber 7 is as the passage of carrying liquid, gas.During dismounting, only need turn on the nut 4 of band collet, card pipe 6 and flexible pipe (or plastic-aluminum pipe) 5 easily can be unloaded the almost nil damage of port of flexible pipe (or plastic-aluminum pipe) 5.

To shown in Figure 6, among the delivery pipe joint embodiment two that the utility model provides, it only is with embodiment one difference as Fig. 4: be processed with internal thread on the connection mouth 3, be with on the nut 4 ' of collet and be processed with the outside thread that is complementary with it.

Claims

1. delivery pipe joint, nut by adapter body, taper pipe, connection mouth, card pipe and band collet is formed, adapter body, taper pipe and connection mouth are as a whole, the card pipe is between connection mouth and taper pipe, the card pipe is affixed on the outer wall of taper pipe closely with flexible pipe or plastic-aluminum pipe, and the nut spiral of band collet is connected on the connection mouth, is used for will the card pipe being pressed into the inner chamber of connection mouth, it is characterized in that: the endoporus of described card pipe is a straight-tube shape, and card pipe one port is provided with arc angling.

2. delivery pipe joint according to claim 1 is characterized in that: be processed with outside thread on the described connection mouth, be processed with the internal thread that is complementary with it on the nut of band collet.

3. delivery pipe joint according to claim 1 is characterized in that: be processed with internal thread on the described connection mouth, be processed with the outside thread that is complementary with it on the nut of band collet.