CN201391648Y

CN201391648Y - Floating ball valve

Info

Publication number: CN201391648Y
Application number: CN200920041600U
Authority: CN
Inventors: 赵金权
Original assignee: Suzhou Cleanroom Air Condition System Engineering Co Ltd
Current assignee: Suzhou Cleanroom Air Condition System Engineering Co Ltd
Priority date: 2009-03-27
Filing date: 2009-03-27
Publication date: 2010-01-27
Anticipated expiration: 2019-03-27

Abstract

The utility model discloses a floating ball valve which comprises a valve body, a water inlet and a water outlet, wherein the valve body has two-segment split structure, and comprises a valve body upper part and a valve body lower part, the valve body upper and lower parts are fixedly connected with each other through a bolt; a seal plate is arranged between the valve body upper part and the valve body lower part, a valve hole is arranged in the middle of the seal plate; a solid ball body is arranged under the seal plate, the solid ball body penetrates through the valve hole to be connected with a floating ball outside the valve body through a hauling wire; the water inlet is arranged on one side of the lower part of the valve body, the water outlet is arranged on one side of the upper part of the valve body. The utility model utilizes buoyancy to realize rising or sinking of the floating ball outside the valve body, and drives the solid ball body inside the valve body to rise or sink so that the solid ball body is attached on or separated from the valve hole of the seal plate, the closing and opening of the floating ball valve are realized; the floating ball valve has simpler structure and convenient use.

Description

A kind of float valve

Technical field

The utility model relates to a kind of valve, is specifically related to a kind of float valve.

Background technique

Float valve is a kind of accessory commonly used that is used for water supply moisturizing on water tank, pond, the air conditioner cooling tower, relies on buoyancy of liquid to come the valve of automatic on-off, because it is generally adopted the water level precise control.

At present, in order to satisfy people's use needs, float valve has been designed to multiple structure, generally its structure of the float valve of Shi Yonging is: comprise a valve body, L type lever and ball float, offer a water intake on the valve body, the intersection prolongation of L type lever is sentenced bearing pin and is articulated on the valve body, and an arm of force of L type lever is right against water intake, and on arm of force plane, be provided with soft rubber cushion, and another arm of force is connected with valve ball.In use, along with the height variation of liquid level in the container, ball float floats thereupon or sinks, and drives L type lever then and rotates, and makes that the soft rubber cushion on the one arm of force blocks water intake or breaks away from water intake, thereby plays the effect of sealing or water inlet.

Yet, there is following shortcoming in the float valve of said structure: (1) is because soft rubber cushion is the below that is in the float valve water intake, its block or break away from water intake operation all against the current pressure-bearing carry out, thereby be prone to the situation of leaking, also influenced the working life of ball valve simultaneously; (2) structure of this float valve is comparatively complicated, and is mechanical structure, uses inconvenience, uses fragile for a long time.

Summary of the invention

The utility model purpose provides a kind of float valve simple in structure, makes it have good sealing effect, and increases the service life.

For achieving the above object, the technical solution adopted in the utility model is: a kind of float valve, comprise a valve body, water intake and water outlet, and described valve body is two-section separated structure, comprises valve body top and valve body lower portion, both connect through bolt; Be provided with diaphragm seal between described valve body top and the valve body lower portion, the centre of diaphragm seal is provided with valve opening; The below of described diaphragm seal is provided with a solid sphere, and described solid sphere is passed described valve opening and is connected with ball float outside the valve body through pulling cable; Described water intake is located at a side of valve body lower portion, and described water outlet is located at a side on valve body top.

Above, described float valve adopts the next mounting type, promptly is installed on the bottom of containers such as water tank, pond.During use, when the water level in the container rises,, drive the solid sphere come-up in the time of the ball float come-up, the sphere of solid sphere and the valve opening of diaphragm seal are fitted fully because buoyancy function makes ball float rise, thus the float valve closure, and water supply stops; When the liquid level in the container descended, buoyancy reduced, ball float sinks, and solid sphere is sunk simultaneously, broke away from diaphragm seal, and float valve is opened, water supply start.Because valve body is made of top and bottom, connect through bolt between the two, this split-type structural makes convenient disassembly between the upper and lower part, even when diaphragm seal damages, also is easy to change.Described water intake is located at valve body lower portion, thereby solid sphere blocks or break away from valve opening and all carry out downstream, has so just improved the sealing effect and the working life of float valve.

Further technological scheme, described valve body top offers inspection cover.Offering of described inspection cover, the easy access personnel open and float valve are overhauled.

Because the technique scheme utilization, the advantage that the utility model compared with prior art has is:

1, since the utility model form by top and bottom by valve body is arranged to, both connect through bolt, be provided with diaphragm seal in the joint, the diaphragm seal below is provided with solid sphere, spheroid is connected with ball float outside the valve body through pulling cable, makes ball float to rise or sink according to the variation of liquid level, drives solid sphere and rises or sink, thereby realize the closed of float valve and open that structure is comparatively simple.

2, because the utility model is two-section separated structure, diaphragm seal is set, makes that the replacing of diaphragm seal is comparatively convenient in both joints.

3, the utility model offers inspection cover on valve body top, makes that the maintenance of float valve is convenient;

4, water intake of the present utility model is located at valve body lower portion, thereby solid sphere blocks or break away from valve opening and all carry out downstream, has so just improved the sealing effect and the working life of float valve.

5, the utility model is easy to use, and cheap, is easy to realize, is fit to promote the use of.

Description of drawings

Fig. 1 is the structural representation of float valve open mode among the utility model embodiment one;

Fig. 2 is the structural representation of float valve closed state among the utility model embodiment one.

Wherein: 1, valve body top; 2, valve body lower portion; 3, bolt; 4, diaphragm seal; 5, solid sphere; 6, pulling cable; 7, ball float; 8, water intake; 9, water outlet; 10, inspection cover.

Embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment one:

Shown in Fig. 1～2, a kind of float valve comprises a valve body, water intake 8 and water outlet 9, and described valve body is two-section separated structure, comprises valve body top 1 and valve body lower portion 2, and both are fixedly connected through bolt 3; Be provided with diaphragm seal 4 between described valve body top 1 and the valve body lower portion 2, the centre of diaphragm seal 4 is provided with valve opening; The below of described diaphragm seal 4 is provided with a solid sphere 5, and described solid sphere 5 is passed described valve opening and is connected with ball float 7 outside the valve body through pulling cable 6; Described water intake 8 is located at a side of valve body lower portion 2, and described water outlet 9 is located at a side on valve body top 1.Described valve body top offers inspection cover 10.

Real ball and ball float radius will satisfy floating (ρ water-ρ the is floating)=R3 of following relationship 11:R3 real (ρ reality-ρ water), can not consider that ball float gravity is as follows: R3 floats ρ water=R3 real (ρ reality-ρ water), actual ball float radius is got 1.2 times and is calculated the ball float radius, R=60mm for example, real iron=7.8 of pressing of ρ, R floats=113.6mm * 1.2=136.3mm; The water outlet bore and the real radius of a ball will satisfy following relationship: real (ρ reality-ρ water)/3 of (10 pressure of supply waters (kilogram)-10-H water tank water column (m)) r2=4R3, actual water outlet bore is got and is calculated 0.8 times of bore, for example supply water 3 kilograms, H=1m, R=0.06m, real iron=7.8, the r=10mm * 0.8=8mm of pressing of ρ; Valve block internal diameter and real bulb diameter relation: it is proper that valve block internal diameter D gets 1.2 times of real bulb diameters.

During use, the water intake 8 of float valve is connected with the water source of outside, water enters in the ball valve by water intake 8, the valve opening of process diaphragm seal 4 flows out from the water outlet 9 on valve body top 1, and when the water level in the container constantly rose, buoyancy made attached external ball float 7 rise, ball float 7 rises through the solid sphere 5 that pulling cable 6 drives in the valve body lower portion 2, when solid sphere 5 rose to the valve opening applying of sphere and diaphragm seal 4, float valve was closed, and water supply stops; In the time of the drawdown in the container, ball float 7 sinks, and makes solid sphere 5 sink, and solid sphere 5 breaks away from diaphragm seal 4, and float valve is opened, and continues to supply water.

Claims

1. a float valve comprises a valve body, water intake (8) and water outlet (9), and it is characterized in that: described valve body is two-section separated structure, comprises valve body top (1) and valve body lower portion (2), and both are fixedly connected through bolt (3); Be provided with diaphragm seal (4) between described valve body top (1) and the valve body lower portion (2), the centre of diaphragm seal (4) is provided with valve opening; The below of described diaphragm seal (4) is provided with a solid sphere (5), and described solid sphere (5) is passed described valve opening and is connected with ball float (7) outside the valve body through pulling cable (6); Described water intake (8) is located at a side of valve body lower portion (2), and described water outlet (9) is located at a side on valve body top (1).

2. float valve according to claim 1 is characterized in that: described valve body top (1) offers inspection cover (10).