CN102705624A

CN102705624A - Adhesive-free hot-melting-free plastic running water pipe joint

Info

Publication number: CN102705624A
Application number: CN2011102871380A
Authority: CN
Inventors: 周知玉; 张舜
Original assignee: CHANGDE WEST LAKE MANAGEMENT DISTRICT XINGMIN PROFESSIONAL COOPERATIVES
Current assignee: CHANGDE WEST LAKE MANAGEMENT DISTRICT XINGMIN PROFESSIONAL COOPERATIVES
Priority date: 2011-09-26
Filing date: 2011-09-26
Publication date: 2012-10-03

Abstract

The invention discloses an adhesive-free hot-melting-free plastic running water pipe joint, which consists of an outer bushing, an inner bushing and an annular sealing gasket, and is characterized in that the inner bushing is made of hard metal and is tightly connected with the outer bushing into a whole by an injection molding method; at least one or more than one sharp pipe thread is arranged at a joint end of the inner bushing; annular steps are formed at the bottoms of the pipe threads; the pore diameter of the steps is smaller than that of the pipe threads on the inner bushing; and the annular sealing gasket is arranged on the steps. The adhesive-free hot-melting-free plastic running water pipe joint has the advantages that 1, a special hot melting device or an adhesive is not required during installation, the butt end of a pipeline is not required to be subjected to thread machining, the port of the pipeline is only required to be flatly aligned and is screwed inwards by force, so that the pipe joint is conveniently and rapidly mounted; 2, the joint is detachably and repeatedly used, the phenomena of deformation, shrinkage or blockage at the mounted joint are avoided, and the project quality can be guaranteed after the pipe is mounted into the pipeline; and 3, the connected pipe joint is high in pressure resistance, high in sealing property, energy-saving and environment-friendly.

Description

A kind ofly exempt from the plastics running water pipe joint that glue is exempted from hot melt

Technical field

Various terminal, plug and switch in the cold and hot tap water pipe lines of plastics such as the PP-R that the present invention relates in the current social life generally to use, PE, PVC are the plastics running water pipe joint of exempting from glue, exempting from hot melt specifically.

Background technique

Water supply, the drainage system in current various house, enterprise, hotel or hotel etc. generally is to adopt plastic pipe; Wherein comparatively commonly used with PP-R, PE plastic tube and PVC plastic tube; When adopting PP-R, PE plastics cool and hot water pipe to be mounted to complete pipeline; Required straight-through, threeway, many logical, elbows, tiltedly logical, loose joint, change connect, plug, valve or switch, all are that butt joint forms pipeline after adopting the heat melting device hot melt.When adopting the PVC plastic tube to make supplying drainage, then adopt special-purpose sizing material to dock.All there are following many defectives in they: one of which: must be by special adhesive or heat melting device; Its two: various terminal, plug, valve or switch can only disposablely use, and in a single day pipeline docks installation forming, can't original shape dismounting change trend, can't recycle after the dismounting, wasteness is very big; Its three: can't operate hot melt butt joint when running into the dead angle in the pipeline rout; Its four: often filled in the pipeline joint, the aperture is dwindled even stop up by sizing material or hot-melt object annular; Its five: require the no foreign matter of joint cleaning; Its six: hot melt docking operation difficulty is bigger, often needs the above problem such as work of just being convenient to of two people.

Summary of the invention

In order to solve the above-mentioned defective that exists when plastic tube butt joints such as existing PP-R, PE, PVC are installed; The present invention provides a kind of plastics running water pipe joint that does not need the various model specifications of heat melting device or the butt joint of special-purpose sizing material; To reach quick and easy for installation, economical and practical purpose.

For solving its technical problem; The technological scheme that the present invention adopts is: all size running water pipe joint of designing; Form by external bushing, neck bush and ring packing packing ring; Its feature is: 1, neck bush is processed by hard metal material, and the external bushing through injection moulding process and plastic material closely connects as one; In the interface end of neck bush, be provided with pipe thread sharp more than at least one or, be provided with ring-shaped step in the bottom of this pipe thread, the ring packing packing ring is laid less than the aperture of pipe thread on the neck bush in the aperture of step on the step; 2, the profile of external bushing and neck bush is that shape is mixed by cylindrical, square, polygonal or circle side, and the endoporus of neck bush be a circle; 3, the ring packing packing ring is processed by elastic material, and its external diameter and aperture all equate with the external diameter and the aperture of step basically.

With present compared with techniques; The present invention has following progress: 1. because of neck bush is that hard metal is processed, be provided with pipe thread sharp more than or in its craft port with thread tapping ability, and need be during installation by special-purpose heat melting device or adhesive glue; Need be to the interim car silk processing of pipeline docking port end yet; Only need the smooth alignment of pipe end, firmly tighten and get final product, so it is easy for installation, quick toward in; 2. this joint is detachably reused, and the joint after the installation can not deform, dwindle or phenomenon of blocking, can guarantee that piping erection becomes the construction quality of pipeline; 3. compare with the Placement of existing joint, connect its withstand voltage and good airproof performance of back, though the fabricating cost of the two is suitable, the present invention is that environmental protection is energy-conservation again.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is further specified:

Fig. 1 is embodiment 1 a broken section structural representation;

Fig. 2 is the left view of O-ring seal among Fig. 1;

Fig. 3 is embodiment 2 a structural representation sectional view.

Among the figure: 1. neck bush, 2. ring packing packing ring, 3. external bushing 3.

Embodiment

Embodiment 1: the various plastics pipe joint from the beginning that with the threeway is example;

With reference to accompanying drawing 1 and accompanying drawing 2: in external bushing 3 with the running water pipe joint of injection molding; Closely be connected with the neck bush of processing by hard metal material 1 through injection moulding process; Be processed with the sharp pipe thread more than or at this neck bush interface end inwall, be provided with ring-shaped step in the bottom of internal thread, the aperture of step is less than the aperture of pipe thread; On step, lay the ring packing packing ring of processing by elastic material such as rubber 2; Wherein the profile of external bushing 3 and neck bush 1 is cylindrical, also square, polygonal or circle side mixing shape, and the endoporus of neck bush 1 is a circle.Required straight-through, elbow in every plastic piping, tiltedly logical, many logical, become connect, the interface end of valve or switch is all identical with present embodiment.During fitting operation, only need to select the plastic tube and the joint of same specification, the two aligns each other firmly to tighten toward in and gets final product.

Embodiment 2: plastics running water pipe plug joint;

With reference to accompanying drawing 3: as the plastics of bottle cap shape pipe plug from the beginning, in its external bushing 3, closely be connected with the neck bush 1 that hard metal material is processed through injection moulding process in the profile of using injection molding; On the interface end inwall of this neck bush, be processed with sharp pipe thread more than or; Ring packing packing ring 2 is laid in the bottom of internal thread, as long as plug is aimed at the port that is connect the plastics running water pipe, firmly tightens plug during installation; Make the internal thread and the outer wall engagement that is connected plastic tube of plug neck bush; And make the ring packing packing ring and closely contacted by being connect plastic water pipe, just can block running water pipe, can not leak.

Claims

1. exempt from the plastics running water pipe joint that glue is exempted from hot melt for one kind, be made up of external bushing, neck bush and ring packing packing ring, it is characterized in that: neck bush is processed by hard metal material, and the external bushing through injection moulding process and plastic material closely connects as one; In the interface end of neck bush, be provided with the sharp pipe thread that plastic pipe is had the effect of automatic merit silk more than at least one or; Bottom at this pipe thread is provided with ring-shaped step; The ring packing packing ring is laid less than the aperture of pipe thread on the neck bush in the aperture of step on the step.

2. according to claim 1ly exempt from the plastics running water pipe joint that glue is exempted from hot melt, it is characterized in that: the profile of said external bushing and neck bush is that shape is mixed by cylindrical, square, polygonal or circle side, and the endoporus of neck bush be a circle.