CN201302003Y - Bowl-shaped piston water level control valve - Google Patents

Abstract

Disclosed is a bowl-shaped piston water level control valve which is used for controlling the liquid level of the water tank or the water pool and replenishing water or stopping water supply according to the preset liquid level; wherein the sealing rubber in a piston cylinder of the valve adopts the bowl-shaped reinforced rubber which is pressed by mixing the nylon and ethylene propylene diene monomer (EPDM) by a high temperature press; a built-in deflector hole is adopted for connecting a valve body chamber with an upper sealing chamber; when the liquid level of the water pool or the water tank is lower than the preset level, a ball float pilot valve opens and discharges the pressure in a sealing chamber of the valve, the pressure decreases and the pressure below a valve seat is more than that of the upper sealing chamber of the valve, thereby pushing the piston cylinder to move upwards, and a main valve clack opens to supply water for the water pool or the water tank; when the liquid level reaches the preset value, the ball float pilot valve is closed, and the liquid in the valve chamber continues to replenish water for the upper sealing chamber through the built-in deflector hole; as the piston cylinder area is larger than that of the sealing surface and under the force of a compression spring, the piston is moved downwards and the water supply is stopped when the valve clack is closed.

Description

Bowl-type piston altitude valve

Technical field

The utility model relates to a kind of control gear of controlling water tank or pond liquid level height, carrying out moisturizing or stop to supply water according to the height of default liquid level.Especially adopt bowl-type to strengthen glue, make sealing more reliable, long service life.

Background technique

The altitude valve of Cai Yonging divides two kinds in the market: diaphragm type hydraulic water level control valve and piston hydraulic altitude valve.Its main constituent elements is made up of valve body, valve gap, valve rod, diaphragm or parts such as piston, external pipeline.Damaged or aging in the work owing to opening and closing number of times too much or service time long diaphragm and piston cylinder zero type circle of causing, cause the closed chamber leakage, valve sealing element can't seal or seal instability.Connect valve body chamber and last closed chamber and adopt the form of external pipeline to connect connection, cost is too high, and flow passage components are many, debugging and maintenance inconvenience.

Summary of the invention

Existing altitude valve diaphragm easy and piston cylinder zero type circle breakage and cylinder body rapid wear, cost is crossed high multinomial deficiency, the utility model provides a kind of bowl-type piston altitude valve, when this valve has been drawn original altitude valve advantage the deficiency of existing altitude valve has been made multinomial improvement.Adopt bowl-type to strengthen glue, make sealing more reliable, built-in pod apertures is debugged and is safeguarded more conveniently, reduces production costs.

Technological scheme: the bowl-type that the utility model adopts is strengthened glue and is used the high temperature press that ethylene-propylene diene copolymer and change nylon are added the type of making; It is strong that Ethylene Propylene Terpolymer reinforcement glue has toughness, ageing resistance height, high wear resistance.Be shaped as bowl-type, reduce surface of contact between rubber and the piston/cylinder, reduce the friction of rubber and cylinder body, make the more flexible no jam of piston motion; Built-in pod apertures is selected materials when the processing valve rod and is adopted the Stainless Steel Tube material, makes current pass through inner valve body chamber and the last sealing chamber of connecting of valve rod, no longer adopts the form of valve external pipeline, reduces production costs.

Beneficial effect is: make things convenient for user installation and use, and the ageing resistance height, high wear resistance reduces production costs, long service life.

Description of drawings

Fig. 1 is product design figure, and Fig. 2 is product structure figure.

Among the figure, 1, valve gap 2, bowl-type strengthen cushion rubber 3, valve body 4, pod apertures valve rod 5, flap 6, sealing gasket pressing plate

Embodiment

With the high temperature press ethylene-propylene diene copolymer with change nylon and add and make bowl-type and strengthen cushion rubber (2), Ethylene Propylene Terpolymer is strengthened glue, and to have toughness strong, ageing resistance height, high wear resistance.Be shaped as bowl-type, reduce surface of contact between rubber and the piston/cylinder, reduce the friction of rubber and cylinder body, make the more flexible no jam of piston motion; Built-in pod apertures is selected materials when the processing valve rod and is adopted the Stainless Steel Tube material, makes current pass through inner valve body chamber and the last sealing chamber of connecting of valve rod (4), no longer adopts the form of valve external pipeline, reduces production costs.

Claims (2)

1, a kind of piston altitude valve, main body is made up of valve body, valve gap, spring, bowl ring, bowl-shape pressure plate, pod apertures valve rod, flap, sealing gasket and pressing plate, external part is made up of ball float pilot valve, small ball, joint, it is characterized in that caulking gum adopts the high temperature press that nylon is mixed the reinforcing rubber that is pressed into bowl-type, built-in pod apertures with ethylene-propylene diene copolymer in this valve piston cylinder.

2,, it is characterized in that Ethylene Propylene Terpolymer strengthens glue laminated and make bowl-type as the sharp claim 1 described piston altitude valve of right.

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