CN2421493Y

CN2421493Y - Plastic pipe inserted joint

Info

Publication number: CN2421493Y
Application number: CN 99259201
Authority: CN
Inventors: 刘玉龙
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-12-27
Filing date: 1999-12-27
Publication date: 2001-02-28
Anticipated expiration: 2009-12-27

Abstract

The utility model relates to a plastic pipe inserted joint, which comprises a joint casing, a sealing ring and a pipe clamp. The plastic pipe inserted joint is characterized in that the pipe inner wall of the joint casing which is positioned on the interface end of the plastic pipe is successively provided with a sealing ring groove and an outer conical ring groove from inside to outside, the sealing ring is a U-shaped sealing ring and arranged in the sealing ring groove, the pipe clamp is an elastic pipe clamp which has an outer concave head, and the outer concave head is arranged in the outer conical ring groove. The utility model has the advantages of convenient assembling and disassembling, simple structure, good sealing performance and long service life and can connect metal pipes and plastic pipes together easily. The utility model is suitable for serving as a pipeline connecting joint which has plastic pipes, and particularly for a running water pipe pipeline connecting joint which has PEX pipes.

Description

The plastic tube inserted sleeve

The utility model belongs to pipe coupling, relates to a kind of plastic tube inserted sleeve.

The joint of existing connection plastic tube is all by being threaded, and because of difficulty on the plastic tube is established screw socket, particularly plastic tube also can't be offered screw socket in the scene at present; So, all contain seal ring, pipe liner, pipe wild card, the outside thread enclosure and joint housing etc. on the joint of existing connection plastic tube.Complex structure, withstand voltage lower, working life is short, installs, dismounting is hard to tackle, and the actual internal diameter that uses is little, is difficult for being connected with metal pipe element.

At above problem, the purpose of this utility model provides all simple and convenient plastic tube inserted sleeve of a kind of installation and removal.

A kind of plastic tube inserted sleeve, comprise joint housing, seal ring and pipe clamp, it is characterized in that: on the inner tube wall of the joint housing of plastics pipe interface end, be provided with closure gasket groove and external conical shape annular groove from inside to outside successively, seal ring is a U type seal ring, if it is indoor to be contained in closure gasket groove, pipe clamp is the Elastic tube clamp of head evagination, and outer noses are established and are contained in the external conical shape annular groove.Wherein: big outer little taper annular groove in the external conical shape annular groove is meant; Elastic tube clamp is meant that the front portion cuts the capable of opening and closing cylindric anchor clamps of slit, is about to its clamping when closing up when surrounding inserting member, otherwise unclamps.

The utility model is because of the Elastic tube clamp that adopted the head evagination and be located at external conical shape annular groove on the joint housing inner tube wall accordingly, make installation, the dismounting very simple and convenient, need only during installation plastic tube is passed Elastic tube clamp to seal ring, just can be during dismounting easily with the plastic tube extraction of inserting as long as Elastic tube clamp is inwardly pushed and fastens.By U type seal ring liquid or gas in the pipe can not oozed out.So, not only have installation, the simple and convenient advantage of dismounting, also have simple in structure, good airproof performance, withstand voltage height, long service life, actually use advantages such as internal diameter greatly, easily couples together metal tube and plastic tube.Be applicable to and do the pipe connector lug that contains plastic tube, be used for plastic tube and component such as plastic tube, plastic tube and metal tube, plastic tube and ducted valve in the connecting tube; Particularly do the running water pipe pipe connector lug that contains the PEX pipe, be used for connecting the ducted PEX of running water pipe pipe and PEX pipe, PEX pipe and metal tube, PEX pipe and component such as ducted water tap of running water pipe and water meter such as zinc-plated.

Describe in detail below in conjunction with embodiment and accompanying drawing:

Fig. 1 is a structural representation of the present utility model,

Fig. 2 is an another kind of structural representation of the present utility model,

Fig. 3 is a kind of Elastic tube clamp structural representation of the present utility model.

Among the figure: (1) metal tube, (2) joint housing, (3) closure gasket groove, (4) seal ring, (5) bevel annular groove, (6) outer noses, (7) external conical shape annular groove, (8) pipe clamp, the protruding circle of (9) longitudinal register, the protruding circle of (10) located lateral, (11) plastic tube.

Fig. 1 and Fig. 2 are the jointing of metal tube (1) and plastic tube (11), and the joint that metal tube (1) and plastic tube (11) can be coupled together is respectively two logical and tee unions.Wherein: an end of two pass joint housings (2) among Fig. 1 and the middle ends of the tee union housing (2) among Fig. 2 are internal thread interface, identical with existing screw socket pipe jointing, be used for directly being connected with metal tubes such as ducted galvanized pipe (1), valve, water tap and water meter and component.The other end among Fig. 1 and the two ends, the left and right sides among Fig. 2 are plastics pipe interface, be provided with closure gasket groove (3) and external conical shape annular groove (7) on the inner tube wall of their joint housing (2) from inside to outside successively, seal ring (4) is a U type seal ring, if be contained in the closure gasket groove (3), pipe clamp (8) is for being provided with the Elastic tube clamp of outer noses (6), outer noses (6) are arranged in the external conical shape annular groove (7), are used to connect plastic tube (11).Obviously, as long as the internal thread interface of the metal tube among Fig. 1 and Fig. 2 (1) is designed to plastic tube insertion interface, just can become the jointing of plastic tube and plastic tube; Also can make as required and can connect the first-class joint of four-way, elbow, reducer fitting and loose joint that plastic tube and plastic tube can be connected plastic tube and metal tube, plastic tube and pipeline component again.

Elastic tube clamp among Fig. 3 (8) is 6 pawl Elastic tube clamps, obviously, can also adopt split, Elastic tube clamps such as 3 pawls or 4 pawls.Preferably adopt the Elastic tube clamp of a hole taper, the i.e. big Elastic tube clamp of the little uropore in a hole, and the anchor ring of the bottom surface of taper annular groove (7) is provided with bevel annular groove (5) outside, and the head of a hole taper Elastic tube clamp (8) that pushes can be opened thereupon, so that dismounting plastic tube (11).For the ease of installing, on the afterbody of Elastic tube clamp, be provided with protruding circle of longitudinal register (9) and the protruding circle of located lateral (10) successively.

Claims

1, a kind of plastic tube inserted sleeve, comprise joint housing (2), seal ring (4) and pipe clamp (8), it is characterized in that: on the inner tube wall of the joint housing (2) of plastics pipe interface end, be provided with closure gasket groove (3) and external conical shape annular groove (7) from inside to outside successively, seal ring (4) is a U type seal ring, if be contained in the closure gasket groove (3), pipe clamp (8) is the Elastic tube clamp of head evagination, and outer noses (6) are arranged in the external conical shape annular groove (7).

2, plastic tube inserted sleeve according to claim 1 is characterized in that: Elastic tube clamp (8) is the Elastic tube clamp of a hole taper, and the anchor ring of the bottom surface of taper annular groove (7) is provided with bevel annular groove (5) outside.

3, plastic tube inserted sleeve according to claim 1 and 2 is characterized in that: be provided with protruding circle of longitudinal register (9) and the protruding circle of located lateral (10) on the afterbody of Elastic tube clamp (8) successively.