CN202215889U

CN202215889U - Glue-free and hot melting-free plastic tap water pipe connector

Info

Publication number: CN202215889U
Application number: CN201120361571XU
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: 2012-05-09
Anticipated expiration: 2021-09-26

Abstract

The utility model discloses a glue-free and hot melting-free plastic tap water pipe connector which consists of an outer lining, an inner lining and an annular seal gasket, and is characterized in that the inner lining is made of hard metallic materials and is connected with the outer lining into a whole through a method of injection molding; at least one or more than one sharp pipe thread is arranged in the interface end of the inner lining, an annular step is arranged at the bottom of the pipe thread, the aperture of the step is smaller than the aperture of the pipe thread on the inner lining; and the annular seal gasket is arranged on the step. The characteristics and advantages of the glue-free and hot melting-free plastic tap water pipe connector are shown as follows: 1. the mounting is convenient and quick neither with the help of a special heater or adhering glue, nor a temporary threading process on a butt joint interface of a pipe, but the interfaces of the pipes need to be aligned smoothly and internally screwed with great strength; 2. the connector can be dismounted and used repeatedly, the deformation, shrinking or blocking phenomena cannot occur on the mounted connector, and the project quality with the pipes mounted into a pipeline can be ensured; and, 3. the pressure endurance and the tightness after connection are good, thereby achieving energy conservation and environmental protection.

Description

Exempt from glue and exempt from the plastics running water pipe joint of hot melt

Technical field

The utility model relates in the current social life various terminal, plug and the switch in the cold and hot tap water pipe lines of plastics such as the PP-R that generally uses, PVC, PE, is 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 utility model 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 utility model 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 utility model 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 utility model is that environmental protection is energy-conservation again.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model 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; Bottom at internal thread is provided with ring-shaped step, and the ring packing packing ring of being processed by elastic material such as rubber 2 is laid less than the aperture of pipe thread in the aperture of step on step; 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 self-tapping effect 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.

3. according to claim 1ly exempt from the plastics running water pipe joint that glue is exempted from hot melt, it is characterized in that: said 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.