CN202327479U

CN202327479U - Press-in type plastic pipe joint

Info

Publication number: CN202327479U
Application number: CN201120460477XU
Authority: CN
Inventors: 王崇高
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-18
Filing date: 2011-11-18
Publication date: 2012-07-11
Anticipated expiration: 2021-11-18

Abstract

The utility model relates to a press-in type plastic pipe joint which is characterized by comprising a plastic pipe joint with a rubber seal ring and a plastic pipe joint with conical pipe inner wall, and the plastic pipe joint with a rubber seal ring and the rubber seal ring on the joint are together pressed into the plastic pipe joint with conical pipe inner wall. The outer wall at one end of the plastic pipe joint with a rubber seal ring is provided with a groove, an O-shaped rubber seal ring is sheathed on the groove, an electric heating wire coil pipe is pre-embedded on the inner wall at the other end of the pipe joint, and the plastic pipe joint is made by adopting in-mold injection molding method. An electric heating wire coil pipe is pre-embedded on the inner wall at one end of the conical plastic pipe joint, a certain conical degree is designed on the inner wall at the other end, and the conical degree is 1:50-1:80. The press-in type plastic pipe joint has the advantages of simple structure, good sealing property, convenience for construction and low production cost.

Description

Forced joint for plastic tube

Technical field

The utility model belongs to technical field of plastic, relates to a kind of forced joint for plastic tube.

Background technique

At present; Water supply and sewerage pipeline on the market generally is divided into these four big types of zinc-plated pipeline, cast-iron pipe, concrete duct and plastic pipes; Zinc-plated pipeline adopts usually and is threaded; Cast-iron pipe adopts usually to fill with concrete duct and is connected, and plastic pipe adopts and is welded to connect, and the connection of these pipelines brings many inconvenience to construction.

Summary of the invention

The purpose of the utility model is to overcome the deficiency of existing joint for plastic tube structural design; A kind of forced joint for plastic tube is provided, and that this joint for plastic tube has is simple in structure, reasonable in design, cost of production is low, good seal performance, applied range and can realize the advantage that pipeline is connected fast.

To achieve these goals, the utility model is realized through following technological scheme:

It comprises the joint for plastic tube of being with rubber seal and two parts of joint for plastic tube of inner tube wall band tapering forced joint for plastic tube, and the joint for plastic tube of band rubber seal has in the joint for plastic tube of tapering together with the rubber seal ascending pipe inwall above the joint.

Band rubber seal joint for plastic tube mainly comprises joint for plastic tube (5) and " O " type rubber seal (4); " O " type rubber seal (4) is enclosed within on the groove of joint for plastic tube (5) pipe outer wall; One end of joint for plastic tube is embedded with electric heating wire coil pipe (2-2); This joint for plastic tube adopts the in-mould injection method of forming to be made, and its working process is: open system band rubber seal pipe joint injection forming mold, electric heating wire coil pipe (2-2) is put into the mould of injection moulding machine; Go out pipe joint (5) with the plastic pellet molding and forming, then " O " type rubber seal (4) is enclosed within the groove on joint for plastic tube (5) outer wall.

The joint for plastic tube (3) of inner tube wall band tapering mainly comprises joint for plastic tube (3) and electric heating wire coil pipe (2-1); Be embedded with electric heating wire coil pipe (2-1) on the inner tube wall of pipe joint one end; Be designed with certain tapering on the inner tube wall of the other end; Its tapering is 1:50 ~ 1:80, and pipe joint adopts the in-mould injection method of forming to be made, and its working process is: the joint for plastic tube injection forming mold of driving tubulation inner wall belt tapering; (2-1) puts into the injection moulding machine mould with the electric heating wire coil pipe, goes out pipe joint with the plastic pellet molding and forming.

The used plastic pellet of molding and forming water pipe adapter is any one in the middle of polyvinyl chloride resin, PE resin, modified PE resin, PP resin, MODIFIED PP resin, the PA resin.

The utility model is compared with existing pipe joint has following advantage:

1, the pipe joint of the utility model have simple in structure, reasonable in design, cost of production is low, the seal for pipe joints performance is good, applied range and advantage easy to use.

2,, just can realize in the band tapering joint for plastic tube that the quick-sealing of pipeline connects as long as will firmly be pressed into together with rubber seal with the pipe joint of rubber seal because on the inwall of pipe joint, designed certain tapering.Therefore, pipeline construction is convenient, easy to operate, has reduced construction cost.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, obviously, the accompanying drawing in describing below only be some embodiments of the present invention; For those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, like three-way pipe, elbow, reducer, four-way pipe or the like.

Fig. 1 is the plastic straighttube structural representation;

Fig. 2 is " O " type rubber seal structural representation;

Fig. 3 has the joint for plastic tube structural representation of tapering for inner tube wall;

Fig. 4 is the joint for plastic tube structural representation that has rubber seal;

Fig. 5 is connected the situation schematic representation for plastic straighttube with the joint for plastic tube that has rubber seal;

Fig. 6 is connected the situation schematic representation for plastic straighttube with the joint for plastic tube that inner tube wall has tapering;

Fig. 7 has the joint for plastic tube of rubber seal and the joint for plastic tube link position schematic representation that inner tube wall has tapering;

Fig. 8 is that the joint for plastic tube that has rubber seal is connected the situation schematic representation with the joint for plastic tube that inner tube wall has tapering;

Among the figure: 1-1. plastic straighttube, 1-2. plastic straighttube, 2-1, electric heating wire coil pipe, 2-2, electric heating wire coil pipe, the 3. joint for plastic tube of inner tube wall band tapering, 4. " O " type rubber seal, the 5. joint for plastic tube of band rubber seal.

Embodiment

Through non-limiting example, further set forth the utility model below, understand the utility model.

Embodiment 1

1, (pipe joint mould one pair that has rubber seal has the first pair of plastic pipe joint of tapering, and the tapering of pipe joint inwall is 1:50 ~ 1:80) to open the in-mould injection shaping die of the forced joint for plastic tube of system.

2, buying electric heating wire coil pipe and " O " type natural rubber seal ring

3, the manufacturing of band rubber seal joint for plastic tube:

(2-2) puts into the injection moulding machine mould with the electric heating wire coil pipe; Its placement location is positioned at the end of joint for plastic tube; Go out joint for plastic tube (5) with the molding and forming of PP plastic pellet; " O " type rubber seal (4) is inserted in the groove above pipe joint (5) the pipe outer wall, and its structure shape is referring to accompanying drawing 4.

4, the manufacturing of the joint for plastic tube of band tapering:

(2-1) puts into the injection moulding machine mould with the electric heating wire coil pipe, and its placement location is positioned at the end of plastic water pipe joint, goes out to have the plastic pipe joint (3) of tapering with the molding and forming of PP plastic pellet, and its structure shape is referring to accompanying drawing 3.

5, being connected of joint for plastic tube and plastic straighttube:

Plastic straighttube (1-1) insertion tube cornice is had in the joint for plastic tube (3) of tapering; To the energising of the electric heating wire coil pipe (2-1) on the pipe joint, the heating of electric heating wire coil pipe, plastic melt; Cut off the electricity supply; The plastic cool of melting, plastic straighttube (1-1) just welds with the joint for plastic tube (5) that has tapering firmly, and its structure shape is referring to accompanying drawing 6.

In addition plastic straighttube (1-2) is inserted and have in the joint for plastic tube (5) of rubber seal; To the energising of the electric heating wire coil pipe (2-2) on the pipe joint, the heating of electric heating wire coil pipe, plastic melt; Cut off the electricity supply; The plastic cool of melting, plastic straighttube (1-2) just welds with the joint for plastic tube (5) that has rubber seal firmly, and its structure shape is referring to accompanying drawing 5.

Accompanying drawing 7 is for having the joint for plastic tube of rubber seal and the joint for plastic tube link position schematic representation that inner tube wall has tapering.Straight tube (1-1) is put into the trench that digs in advance together with pipe joint (3); This pipeline is motionless; Joint for plastic tube (5) is put into the trench that digs in advance together with straight tube (1-2); The pipe joint (5) that will have rubber seal also firmly is pressed into wherein together with " O " type rubber seal (4) the alignment tube joint (3) above the pipe joint, thereby realizes the quick connection of pipeline, and its result is as shown in Figure 8.

Claims

1. forced joint for plastic tube; It is characterized in that it comprises two parts of joint for plastic tube that the joint for plastic tube of being with rubber seal and inner tube wall have tapering, the joint for plastic tube of band rubber seal has in the joint for plastic tube of tapering together with the rubber seal ascending pipe inwall above the joint.

2. a kind of forced joint for plastic tube according to claim 1; It is characterized in that on the outer wall with the first end of plastic pipe joint of rubber seal groove being arranged one; Be with " O " type rubber seal on the groove, be embedded with the electric heating wire coil pipe on the other end inwall of pipe joint.

3. a kind of forced joint for plastic tube according to claim 1 is characterized in that inner tube wall has on the inwall of the first end of plastic pipe joint of tapering to be embedded with the electric heating wire coil pipe that be designed with tapering on the inwall of the other end, its tapering is 1:50～1:80.