CN2138730Y

CN2138730Y - Full plastic rapid assembling ball valve

Info

Publication number: CN2138730Y
Application number: CN 92234656
Authority: CN
Inventors: 张宝纯
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-10-10
Filing date: 1992-10-10
Publication date: 1993-07-21
Anticipated expiration: 2002-10-10

Abstract

The utility model discloses a full plastic rapid assembly ball valve which is characterized is that two different kinds of material are injected for twice to form a valve body and a valve core which are in the shape of a yin-yang spherical surface; the valve core is positioned in the valve body; the valve body can rotate; The cylinders of the water inlet and the water outlet at both ends of the valve body are connected with a pressing cover through screw threads. A pedestal ring, a pressing ring and a lock ring are arranged in the space among the pressing cover, the steps of the inner holes of the cylinders of the water inlet and the water outlet and an inner peripheral circle with a major diameter. The full plastic rapid assembly ball valve has the advantages that the valve body and the valve core are tightly matched, and the water penetration can be avoided. Because the valve is opened or is closed only by rotating 90 DEG, the abrasion between the components is reduced. The utility model has the advantages of long service life, convenient assembly and disassembly and shapely configuration. The whole valve is made of plastic. The full plastic rapid assembly ball valve can not be rusted or corroded without any scale formation. The full plastic rapid assembly ball valve is practical and has the function of decoration.

Description

Full plastic rapid assembling ball valve

The utility model relates to overall plastic, the fast-assembling ball valve that a kind of tap water water supply system is used.

In known technology, the most of cast iron that adopts of the valve that the tap water water supply system is used is made, the structure of this valve is that two ends have the intake-outlet cylinder, the periphery circle is gone up threaded valve body, stifled and the rubber packing of valve is housed in it, valve rod is housed on valve is stifled is connected with valve body with screw thread, valve rod stretches out on the termination of valve body handle is housed.This valve deficiency is because the wearing and tearing of packing and distortion are easy to percolating water after using a period of time, both has been new valve because packing and valve seat cooperate and badly also can outwards seep water; For a long time need not, have a large amount of incrustation scales and corrosion of metal thing when opening again; Be threaded owing to adopt, pretty troublesome during installation, after the service failure, pull down also very difficult.

The purpose of this utility model overcomes the deficiency of known technology exactly and a kind of overall plastic, fast-assembling ball valve is provided.

The purpose of this utility model is implemented by following measure:

Valve body and spool be two kinds of different materials become through twice injection molded that negative and positive sphere shape, its valve body are containing spool, both also can rotate mutually.

Valve body also may be made in two ends intake-outlet cylindrical body periphery circle, and screw thread, internal diameter are arranged is through hole with the level not of uniform size, the gland of boss is arranged for the bore periphery of through hole in the middle of being equipped with on the valve body two terminal circle cylinder screw thread, and rubber gasket, pressure ring and spring lock ring are equipped with in the space in gland boss, the valve body intake-outlet between Zhou Taijie and the cylindrical body large diameter perisporium.

The material of spool provided here can be that the valve body of nylon is nontoxic PVC plastics, can also spool is that the valve body of nylon is the ABS engineering plastics.

Advantage of the present utility model is to make that the cooperation of valve body and spherical valve is tight owing to changed technology and selection, guarantees not seep water, leak; Only need rotate 90 degree owing to open and close valve, reduced between valve body, the spool and valve body, valve rod between wear and tear, improved working life; Mortise lock formula, easy accessibility have been adopted with being connected of external water pipe; Owing to adopt overall plastic structure, so not corrosion, non-scaling; The utility model is handsome in appearance, and existing practicability has certain decorating action again.

Accompanying drawing is embodiment's general assembly schematic representation provided by the utility model.

In conjunction with the accompanying drawings embodiment provided by the utility model is described in further detail:

Embodiment's structure is the ball-type spool 6 that waterway is arranged with the centre that nylon injection-molding becomes, the valve rod 9 of band handle 8 is housed on it, spool periphery body is injected with the two ends that become negative and positive sphere shape with spool, and intake-outlet cylindrical body, vertical inlet mouth direction are arranged is the cylindrical PVC plastics valve body 5 that periphery has in the screw thread dress valve rod, and the body cap 7 that there is sealing gasket (expression on the figure) inside is housed on the cylindrical body of valve body dress valve rod.

The utility model also provides a kind of and the foregoing description structure at intake-outlet cylindrical body product inequality, its structure is that the cylindrical periphery circle of intake-outlet has screw thread, endoporus is a through hole with the level not of uniform size, little inner diameter hole and external water pipe 10 are complementary, the screw thread place of valve body cylindrical body periphery circle is equipped with middle for the bore periphery of through hole is the round gland 1 that matches with the Zhou Yuan in valve body intake-outlet cylindrical body large diameter hole of boss periphery of cylinder boss, the gland raised head face, in the space between valve body intake-outlet cylindrical body endoporus step and the big endoporus perisporium rubber gasket 2 is housed, pressure ring 3 and spring lock ring 4.

Claims

1, a kind of overall plastic, fast-assembling ball valve, it is to have upward threaded valve body of intake-outlet cylinder, periphery circle by two ends, stifled and the rubber packing of valve is housed in it, on valve is stifled valve rod being housed is connected with valve body with screw thread, on the termination of the valve body that valve rod stretches out handle is housed and forms, it is characterized in that valve body and spool are that become the negative and positive sphere shape, valve body through twice injection molded of two kinds of different materials contained spool, both also can rotate mutually.

2, valve according to claim 1, it is characterized in that it is through hole with the level not of uniform size that valve body two ends intake-outlet cylindrical body periphery circle has screw thread, internal diameter, the gland that boss is arranged for the bore periphery of through hole in the middle of being equipped with on the valve body two terminal circle cylinder screw thread, rubber gasket is equipped with, pressure ring and spring lock ring in space in gland boss, the valve body intake-outlet between Zhou Taijie and the cylindrical body large diameter perisporium.

3, valve according to claim 1 and 2, the material that it is characterized in that spool can be that the valve body of nylon is nontoxic PVC plastics, can also spool are that the valve body of nylon is the ABS engineering plastics.