阅读说明：本技术 一种泄压阀 (A kind of relief valve ) 是由 李大臣 刘丽君 盛文刚 麻哲 张明顺 王爱斐 战韦鹏 齐凯 张本超 闵玉强 于 2019-08-19 设计创作，主要内容包括：本发明公开了一种泄压阀,包括阀体和设置于阀体内的浮球,阀体的一端为进气端,进气端的截面形状为等腰梯形,进气端的内壁上设有胶垫；阀体内部固定有金属网,金属网位于浮球下方。将泄压阀连接到水管上,可以实现水管与外界大气的连通,使得水管内外气压平衡,预防虹吸效应的发生。泄压阀可以防止水管溢水现象,若水管内压力突然变大,则浮球在压力作用下上移并封堵在进气端,从而可以阻止水管内的水溢出。浮球封堵在进气端时,进气端内壁上胶垫可以和浮球紧密抵触,提高密封性,从而可以更好的预防水管溢水现象。金属网位于浮球下方,可以防止浮球下沉进入到水管内,从而可以保证泄压阀起到稳定有效的作用。(The invention discloses a kind of relief valve, including valve body and it is set to the intracorporal floating ball of valve, one end of valve body is inlet end, and the cross sectional shape of inlet end is isosceles trapezoid, and the inner wall of inlet end is equipped with rubber mat；Valve inner is fixed with metal mesh, and metal mesh is located at below floating ball.Relief valve is connected on water pipe, the connection of water pipe and ambient atmosphere may be implemented, so that water pipe inside and outside air pressure balance, prevents the generation of siphonic effect.Relief valve can anti-antipriming pipe spilling water phenomenon, if water overpressure becomes larger suddenly, floating ball is moved up under pressure and is blocked in inlet end, so as to prevent the water in water pipe from overflowing.Floating ball is blocked in inlet end, and rubber mat can closely be contradicted with floating ball on inlet end inner wall, improves leakproofness, so as to better pre- guard tube spilling water phenomenon.Metal mesh is located at below floating ball, can prevent floating ball sinking from entering in water pipe, and it is effective to thereby may be ensured that relief valve plays the role of stablizing.)

1. a kind of relief valve, including valve body and it is set to the intracorporal floating ball of the valve, which is characterized in that

One end of the valve body is inlet end,

The cross sectional shape of the inlet end is isosceles trapezoid, and the inner wall of the inlet end is equipped with rubber mat；

The valve inner is fixed with metal mesh, and the metal mesh is located at below the floating ball.

2. relief valve as described in claim 1, which is characterized in that

The edge of the metal mesh is welded on the valve interior wall.

3. relief valve as described in claim 1, which is characterized in that

The other end outer wall of the valve body is equipped with screw thread.

Technical field

The present invention relates to relief valve technical fields, relate in particular to a kind of relief valve applied to water pipe.

Background technique

Relief valve is when equipment or manifold pressure are more than relief valve setting pressure, i.e. automatic opening pressure release guarantees to set Standby and pipeline internal medium pressure protects equipment and pipeline, prevents accident, be in fluid delivery system under setting pressure Control unit, have the function of cut-off, adjusting, water conservancy diversion, prevent adverse current, pressure stabilizing, shunting or overflow pressure relief etc., be related to many necks Domain has been more and more widely used in daily life and work.Traditional pressure-relief valve structure is simpler, and pressure relief opening is not right Claim, fluid forces floating ball can generate lateral force, and under the action of lateral force, floating ball bottom meeting clamping stagnation in pressure relief opening or is stuck in water Manage the opening connecting with relief valve.

Summary of the invention

The purpose of the present invention is to provide a kind of relief valves, are easily stuck in water pipe and pressure release to solve the floating ball of existing relief valve The defect of the opening of valve connection.

For this purpose, the present invention provides a kind of relief valve, including valve body and it is set to the intracorporal floating ball of the valve, the valve body One end be inlet end, the cross sectional shape of the inlet end is isosceles trapezoid, and the inner wall of the inlet end is equipped with rubber mat；It is described Valve inner is fixed with metal mesh, and the metal mesh is located at below the floating ball.

Preferably, the edge of the metal mesh is welded on the valve interior wall.

Preferably, the other end outer wall of the valve body is equipped with screw thread.

Compared with prior art, the advantages and positive effects of the present invention are: the present invention provides a kind of relief valve, including valve Body and it is set to the intracorporal floating ball of the valve, one end of the valve body is inlet end, and the cross sectional shape of the inlet end is isosceles Trapezoidal, the inner wall of the inlet end is equipped with rubber mat；The valve inner is fixed with metal mesh, and the metal mesh is located at described floating Below ball.Relief valve of the invention is connected on water pipe, the connection of water pipe and ambient atmosphere may be implemented, so that inside and outside water pipe Air pressure balance, so as to prevent the generation of siphonic effect.Moreover, relief valve of the invention can anti-antipriming pipe spilling water phenomenon, If water overpressure becomes larger suddenly, floating ball is moved up under pressure and is blocked in inlet end, so as to prevent in water pipe Water overflow.Floating ball is blocked in inlet end, and rubber mat can closely be contradicted with floating ball on inlet end inner wall, improves leakproofness, from And it can better pre- guard tube spilling water phenomenon.Metal mesh is located at below floating ball, and metal mesh will not influence water pipe and ambient atmosphere Connection, but also can prevent floating ball sinking from entering in water pipe, it is effective to thereby may be ensured that relief valve plays the role of stablizing.

It is read in conjunction with the figure in a specific embodiment of the invention, the other features and advantages of the invention will become more clear Chu.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of embodiment of relief valve of the present invention；

Fig. 2 is a kind of structural schematic diagram for embodiment that relief valve of the present invention is mounted on water pipe.

Specific embodiment

Detailed description of the preferred embodiments below, it should be appreciated that described herein specific Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.

As shown in Figure 1, the relief valve of the present embodiment includes valve body 10 and the floating ball 11 that is set in valve body 10, valve body 10 One end is inlet end 12, and the cross sectional shape of inlet end 12 is isosceles trapezoid, and the inner wall of inlet end 12 is equipped with rubber mat 13；Valve body 10 Inside is fixed with metal mesh 14, and metal mesh 14 is located at 11 lower section of floating ball.

The pressure-relief valve structure of the present embodiment is simple, easy to use.The relief valve of the present embodiment is connected on water pipe 20, it can To realize the connection of water pipe 20 Yu ambient atmosphere, so that 20 inside and outside air pressure balance of water pipe, so as to prevent the hair of siphonic effect It is raw.Moreover, the relief valve of the present embodiment can anti-20 spilling water phenomenon of antipriming pipe, if pressure becomes larger suddenly in water pipe 20, floating ball 11 can move up automatically under pressure and block in inlet end 12, so as to prevent the water in water pipe 20 from overflowing.Floating ball 11 block in inlet end 12, and rubber mat 13 can closely be contradicted with floating ball 11 on 12 inner wall of inlet end, improve leakproofness, so as to With better pre- 20 spilling water phenomenon of guard tube.Metal mesh 14 is located at the lower section of floating ball 11, and metal mesh 14 will not influence water pipe 20 and outer Boundary's atmosphere, but also can prevent floating ball 11 sinking enter in water pipe 20, can prevent floating ball 11 be stuck in water pipe 20 with It is effective to thereby may be ensured that relief valve plays the role of stablizing for the opening that valve body 10 connects.

The cross sectional shape of inlet end 12 is isosceles trapezoid, and the upper bottom length of isosceles trapezoid is less than the diameter of floating ball 11.It can be with Cooperation is preferably sealed with floating ball 11, is played and is stablized effective sealing function.

Rubber mat 13 can be bonded and fixed on the inner wall of inlet end 12, or be fixed in inlet end 12 by other means On wall, it is not particularly limited herein.

The edge of metal mesh 14 can be welded on 10 inner wall of valve body, and metal mesh 14 is located at the upper of 20 top of water pipe Side, metal mesh 14 will not be contacted with the water phase in water pipe 20, so that erosion pollution will not be caused to water, the water in water pipe 20 is not yet It can attack metal net 14.

The other end outer wall of valve body 10 is equipped with screw thread 15, can conveniently and efficiently be connected relief valve screw thread by screw thread 15 It is connected on water pipe 20, but also can be in order to the replacement of relief valve.

It is used as shown in Fig. 2, the relief valve of the present embodiment may be mounted on water pipe 20, it is when installation, valve body 10 is another End is threaded on water pipe 20.

The relief valve of the present embodiment can also be threadedly coupled on water tank, so that water tank is connected with ambient atmosphere, thus It can solve water tank to feel suffocated problem.

The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although referring to following realities Applying example, invention is explained in detail, for those of ordinary skill in the art, still can be to following implementations Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these are modified or replace It changes, the spirit and scope for claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.