CN211649101U

CN211649101U - Instant water cut-off device for water supply system burst

Info

Publication number: CN211649101U
Application number: CN201820747037.4U
Authority: CN
Inventors: 杨大明
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-05-18
Filing date: 2018-05-18
Publication date: 2020-10-09
Anticipated expiration: 2028-05-18

Abstract

The utility model provides an instant water cut-off device for water supply system burst, which comprises a valve body, a valve core, a valve cover, a pressing plate and a screw; the valve core is arranged in the center of the bottom of the valve body, a screw hole is formed in the bottom of the valve core, the pressing plate is fixedly connected with the valve core through a screw, the valve cover is arranged on the outer side of the bottom of the valve body, and the valve cover is tightly connected with the bottom of the valve body to guarantee sealing. The utility model has the advantages that: 1) the automatic instant water cut-off is realized, the reaction can be carried out in time when the water pipe bursts, the water flow is cut off, and the loss is reduced; 2) the threshold for device valve closure may be adjusted based on actual flow demand.

Description

Instant water cut-off device for water supply system burst

Technical Field

The utility model relates to a water supply system bursts instant water cut-off device belongs to water supply pipe control technical field.

Background

In winter, due to cold weather, when the temperature is lower than zero, water in a tap water pipeline is easy to freeze, the pipeline is easy to block or even burst due to volume expansion after the water is frozen, and particularly in a household tap water supply system, because the diameter of the pipeline is thin and the pipeline is often exposed in the outdoor environment, devices such as a tap water pipe, a tap and a tap are easy to burst, water resource waste is caused, and great economic loss is easy to cause; meanwhile, the maintenance cost of the burst pipeline is high, and the maintenance work is greatly inconvenient especially in the cold environment in winter.

Most of the existing pipeline anti-freezing and anti-explosion measures adopt a method of arranging an insulating layer on the outer wall of the pipeline, for example, materials such as straw or rubber-plastic sponge are adopted to wrap the outer part of the pipeline, or anti-freezing liquid is coated on the outer wall of the pipeline, and the like; however, the above measures cannot fundamentally solve the problem of freezing of tap water in the pipeline, and also cannot block water flow to prevent further damage when frost cracking occurs, so that the protection effect is poor.

Disclosure of Invention

The utility model provides a water supply system bursts instant water cut-off device, its aim at solve current pipeline anti-freezing explosion-proof measure and only possess the heat preservation effect, can not in time block the problem of rivers, provide one kind can in time react when the pipeline takes place to burst and cut rivers, prevent the instant water cut-off device of further expansion of loss from the root.

The technical solution of the utility model is as follows: the water supply system burst instant water cut-off device structurally comprises a valve body, a valve core, a valve cover, a pressing plate and a screw; the valve core is arranged in the center of the bottom of the valve body, a screw hole is formed in the bottom of the valve core, and the pressing plate is fixedly connected with the valve core through a screw; the valve cover is arranged on the outer side of the bottom of the valve body and is tightly jointed with the bottom of the valve body; one end of the valve body and the valve cover is provided with a connector connected with a water supply pipeline, the other end of the valve body and the valve cover is a matching end, and the matching end of the valve cover is tightly matched with the matching end of the valve body through threaded connection; 2 through damping holes are symmetrically arranged at the bottom of the valve body on two sides of the valve core; a spring is arranged on the outer side of the valve core, one end of the spring is connected with the top of the valve core, the other end of the spring is connected with a screw plug, and the spring is fixedly connected with a hole in the center of the valve body through the screw plug at the bottom; and a gasket, a sealing ring and a pressing plate are sequentially arranged below the screw.

The utility model has the advantages that:

1) the automatic instant water cut-off is realized, the reaction can be carried out in time when the water pipe bursts, the water flow is cut off, and the loss is reduced;

2) the threshold for device valve closure may be adjusted based on actual flow demand.

Drawings

Fig. 1 is a schematic structural diagram of an instant water cut-off device for water supply system bursting.

In the figure, 1 is a valve body, 2 is a valve core, 3 is a spring, 4 is a screw plug, 5 is a valve cover, 6 is a pressure plate, 7 is a seal ring, 8 is a gasket, and 9 is a screw.

Detailed Description

As shown in figure 1, the instant water cut-off device for water supply system burst comprises a valve body 1, a valve core 2, a valve cover 5, a pressure plate 6 and a screw 9; wherein the valve core 2 is arranged at the center of the bottom of the valve body 1, the bottom of the valve core is provided with a screw hole, and the pressure plate 6 is fixedly connected with the valve core 2 through a screw 9; the valve gap 5 is installed in the outside of valve body 1 bottom, and valve gap 5 cooperation end passes through threaded connection with valve body 1 cooperation end closely to be guaranteed sealedly.

One end of the valve body 1 and one end of the valve cover 5 are provided with interfaces connected with a water supply pipeline, the other end of the valve body is a matching end, and the matching end of the valve cover 5 is tightly matched with the matching end of the valve body 1 through threaded connection to ensure sealing; the bottom of the valve body 1 is symmetrically provided with 2 through damping holes at two sides of the valve core 2, and the damping holes are used for passing water flow and playing a damping role according to the flow velocity of the water flow.

A spring 3 is arranged on the outer side of the valve core 2, one end of the spring 3 is connected with the top of the valve core 2, the other end of the spring 3 is connected with a screw plug 4, and the spring 3 is fixedly connected with a hole in the center of the valve body 1 through the screw plug 4 at the bottom; the valve core 2 can move up and down in a hole in the center of the valve body 1 by a certain amplitude, the amplitude of the valve core is limited by the elastic force of the spring 3, and the elastic force of the spring 3 can be adjusted by the rotary screw plug 4.

The lower part of the screw 9 is sequentially provided with a gasket 8, a sealing ring 7 and a pressing plate 6, the tightness of the screw 9 can be adjusted as required, the gasket 8 and the sealing ring 7 can ensure that the pressing plate 6 and the valve core 2 are relatively fixed, and meanwhile, the valve core 2 is ensured to have certain mobility and certain buffering power on water flow.

When the water supply valve is used, the interfaces at the two ends of the valve body 1 and the valve cover 5 are connected into a water supply pipeline, when the water supply amount is normal, water flows through the damping holes, the damping holes do not play a damping role due to low water flow velocity, pressure difference does not exist on the two sides of the valve core 2 basically, the valve core 2 is pushed to the left side under the action of the spring force of the spring 3, and the valve is opened for normal water supply; when the phenomenon of bursting of devices such as water pipe and head cage appear, rivers can the instantaneous flow increase, when the damping hole, the damping hole can slow down the rivers velocity of flow to produce the pressure differential in case 2 both sides, case 2 is pushed to the right side by the pressure of rivers, sealing washer 7 is closed the valve, guarantee that the running water can not spout in a large number, reduce the economic loss of the house that takes place the water pipe and burst, also guarantee simultaneously that the inside rivers of pipeline are relatively stable, do not influence the normal use of other devices in the pipe-line system.

Considering that a large amount of water supply is sometimes needed when the household normally supplies water, in order to ensure that the valve is not closed when the valve works with a large amount of water supply, the pretightening force of the spring 3 can be adjusted by rotating the screw plug 4, the maximum flow value required for closing the valve is changed, and the requirement of the household normally supplying a large amount of water is met.

Claims

1. The instant water cut-off device for water supply system burst is characterized by comprising a valve body, a valve core, a valve cover, a pressure plate and a screw; the valve core is arranged in the center of the bottom of the valve body, a screw hole is formed in the bottom of the valve core, and the pressing plate is fixedly connected with the valve core through a screw; the valve cover is arranged on the outer side of the bottom of the valve body and is tightly jointed with the bottom of the valve body;

one end of the valve body and the valve cover is provided with a connector connected with a water supply pipeline, the other end of the valve body and the valve cover is a matching end, and the matching end of the valve cover is tightly matched with the matching end of the valve body through threaded connection;

2 through damping holes are symmetrically arranged at the bottom of the valve body on two sides of the valve core;

a spring is arranged on the outer side of the valve core, one end of the spring is connected with the top of the valve core, the other end of the spring is connected with a screw plug, and the spring is fixedly connected with a hole in the center of the valve body through the screw plug at the bottom;

and a gasket, a sealing ring and a pressing plate are sequentially arranged below the screw.