CN201787143U

CN201787143U - Novel non-return valve

Info

Publication number: CN201787143U
Application number: CN201020532015XU
Authority: CN
Inventors: 付法平
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-17
Filing date: 2010-09-17
Publication date: 2011-04-06
Anticipated expiration: 2020-09-17

Abstract

The utility model relates to a novel non-return valve, which can effectively solve the problem that the non-return valve in the prior art has large volume, heavy weight, high cost, troublesome use and poor use effect. The novel non-return valve comprises a valve body and a sealing disc. A water inlet cavity and a water outlet cavity are arranged inside the valve body and are communicated through a water through hole on a partition plate positioned therebetween, the sliding sealing disc is arranged on the partition plate inside the water outlet cavity, a water outlet disc is arranged at the end part of the water outlet cavity, a spring is arranged between the sealing disc and the water outlet disc, a safety valve base communicated with the water inlet cavity is arranged on the valve body, and a plurality of through holes are formed on the outer edge discs of the water inlet cavity, the water outlet cavity and the safety valve base. The novel non-return valve has simple structure, is convenient for use and is innovative.

Description

Non-return valve

One, technical field

The utility model relates to valve body, particularly a kind of non-return valve.

Two, background technique

Safety check claims one-way valve or check valve again, its effect is to prevent that the medium in the pipeline from flowing backwards, present safety check is divided by structure, can be divided into three kinds of Lift check valve, Swing check valve and butterfly check valves, but, cause present valve size big, heavy owing to its structural reason, cost is big, installation and maintenance trouble, using effect are bad, and bigger to the energy loss of medium, therefore, the improvement of safety check and innovation are the problems that needs solution.

Three, summary of the invention

At above-mentioned situation, for overcoming the defective of prior art, the purpose of the utility model just provides a kind of non-return valve, it is big effectively to solve existing valve size, heavy, high and the use trouble of cost, the problem that using effect is bad, the technological scheme of its solution is, comprise valve body and seal disc, water-inlet cavity and water chamber are arranged in the valve body, water-inlet cavity and the water chamber water port on its intermediate clapboard is connected, the seal disc that slip is arranged on the dividing plate in the water chamber, there is water tray the end of water chamber, between seal disc and the water tray spring is arranged, the safety valve pedestal that is communicated with water-inlet cavity is arranged, water-inlet cavity on the valve body, on the outer rim dish of water chamber and safety valve pedestal a plurality of through holes are arranged, the utility model is simple in structure, easy to use, be the innovation on the safety check.

Four, description of drawings

Fig. 1 is a sectional front view of the present utility model.

Fig. 2 is a left view of the present utility model.

Five, embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Provide by Fig. 1 to Fig. 2, the utility model comprises valve body and seal disc, water-inlet cavity 2 and water chamber 3 are arranged in the valve body 1, water-inlet cavity 2 and water chamber 3 water port 4 on its intermediate clapboard is connected, the seal disc of slip is arranged on the dividing plate in the water chamber 3, and there is water tray 5 end of water chamber 3, between seal disc and the water tray 5 spring 6 is arranged, the safety valve pedestal 7 that is communicated with water-inlet cavity 2 is arranged on the valve body 1, on the outer rim dish of water-inlet cavity 2, water chamber 3 and safety valve pedestal 7 a plurality of through holes are arranged.

In order to guarantee using effect, said valve body 1 is the integrated type circular hollow housing that is become by cast iron casting.

Said seal disc is made of basal disc 8 and the rubber pad 9 that is fixed on the basal disc 8, slide bar 10 is arranged on the other end of basal disc 8, slide bar 10 1 ends are inserted into on the water dish 5, constitute the structure that seal disc slides in water chamber 3 through slide bar 10, and spring 6 is fixed on the slide bar 10.

Said water tray 5 has the rosette of a plurality of osculums 11 for periphery, water tray 5 through the screw thread spinning on valve body 1.

There is screw thread osculum upper end on the said safety valve pedestal 7.

The utility model has changed the structure of safety check low in and high out in the past, made whole straight-through structure, through hole dress fire service pump colligator or other the water inlet equipment of water-inlet cavity 2 on its end outer rim dish, the through hole of water chamber 3 on its end outer rim dish installed gate valve, safety valve pedestal 7 via through holes mounting flange safety valves or the screw thread safety valve is installed through screw thread, during use, open gate valve, water or other flowing mediums overcome the elastic force of spring 6, back down seal disc, water or other flowing mediums osculum 11 on water chamber 3 and water tray 5 flows out then, time spent not, seal disc is in the effect lower seal water port 4 of spring 6, when the hydraulic pressure of water-inlet cavity 2 during greater than safety pressure, water or other flowing mediums are discharged through safety valve, guarantee the safety of valve body.

The utility model structure uniqueness has alleviated the weight of safety check in the past greatly, has reduced cost, and is easy to install, using effect good, is the innovation on the safety check.

Claims

1. non-return valve, comprise valve body and seal disc, it is characterized in that, water-inlet cavity (2) and water chamber (3) are arranged in the valve body (1), water-inlet cavity (2) and water chamber (3) water port (4) on its intermediate clapboard is connected, the seal disc that slip is arranged on the dividing plate in the water chamber (3), there is water tray (5) end of water chamber (3), spring (6) is arranged between seal disc and the water tray (5), the safety valve pedestal (7) that is communicated with water-inlet cavity (2) is arranged on the valve body (1), on the outer rim dish of water-inlet cavity (2), water chamber (3) and safety valve pedestal (7) a plurality of through holes are arranged.

2. non-return valve according to claim 1 is characterized in that, said valve body (1) is the integrated type circular hollow housing that is become by cast iron casting.

3. non-return valve according to claim 1, it is characterized in that, said seal disc is made of basal disc (8) and the rubber pad (9) that is fixed on the basal disc (8), slide bar (10) is arranged on the other end of basal disc (8), slide bar (10) one ends are inserted into on the water dish (5), constitute the structure that seal disc slides in water chamber (3) through slide bar (10), spring (6) is fixed on the slide bar (10).

4. non-return valve according to claim 1 is characterized in that, the rosette of said water tray (5) a plurality of osculums (11), water tray (5) for periphery has through the screw thread spinning on valve body (1).

5. non-return valve according to claim 1 is characterized in that, there is screw thread the osculum upper end on the said safety valve pedestal (7).