CN2828384Y

CN2828384Y - Fitting structure for pump cover of hyperfilevation blower pump and piston valve seat

Info

Publication number: CN2828384Y
Application number: CN 200520052387
Authority: CN
Inventors: 蔡应麟; 徐兆火
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-08
Filing date: 2005-11-08
Publication date: 2006-10-18
Anticipated expiration: 2015-11-08

Abstract

The utility model discloses a matching structure of a pump cover of a reverse osmosis booster pump and a piston valve seat. A sealed rubber ring is arranged on the matching surface of the pump cover and the piston valve seat; the edge of an inner wall of the pump cover can be provided with an annular platform; a groove is arranged on the edge which is corresponding to the piston valve seat; the sealed rubber ring is embedded. Inversely, the groove is arranged on the edge of the inner wall of the pump cover, the sealed rubber ring is embedded and the piston valve seat is matched with the sealed rubber ring. Using a structure of the utility model, a matching interface of the pump cover and the piston valve seat only makes slight improvement and is provided with the sealed rubber ring to solve the problem of the water leakage of a tube pressure cavity. The working performance and the service life of the booster pump are enhanced.

Description

The pump cover of reverse osmosis suction booster and the cooperating structure of piston valve base

Technical field

The utility model relates to a kind of special-purpose suction booster that is used for the reverse osmosis filtering membrane tube of pure water processing, refers more particularly to the pump cover of this suction booster and the cooperating structure of piston valve base.

Background technique

The reverse osmosis principle is applied to carry out in the daily water purification machine purification of water quality, it is leading in the world in recent years water technology, and in the water purification machine, suction booster is the key equipment that the reverse osmosis filtering membrane tube provides constant supercharging, penetrates the proper functioning of filter membrane pipe in order to guarantee.Suction booster mainly is made up of power mechanism and anallobar, and the wherein driving fit between each parts in the driving fit of airtight situation, especially this anallobar of anallobar and the district then is the important step of this quality of product.

Referring to Fig. 1, the central chamber 3 that a tubular is arranged at the middle position of pump cover 1, there is the high pressure water outlet to be communicated with filtering membrane tube in it, piston valve is installed between pump cover and the diaphragm of rubber sheet 5, last pump cover 1 forms anallobar by bolton with diaphragm of rubber sheet 4 on the pump housing 6, be divided into pipe in the anallobar again and pressed chamber, low-pressure cavity and three water flowing chambers of hyperbaric chamber:

Withhold mutually with the central chamber 3 of pump cover in the hyperbaric chamber of piston valve base 4 central authorities, driving fit forms a hyperbaric chamber; Pump cover beyond the hyperbaric chamber and the cavity between the piston valve have then formed pipe and have pressed the chamber, connect public conduit pipe by water intake; Several of the bottom periphery in piston valve base lower end surface, hyperbaric chamber are low pressure chamber independently, with closed several low-pressure cavity that form of diaphragm of below.

In the design of traditional suction booster, low-pressure cavity embeds the groove of piston valve lower end surface by the convex tendon on the diaphragm 5 and seals, form the pump cover central authorities of hyperbaric chamber and the junction of piston valve base central authorities and also be provided with O-ring seal, having only pipe to press the chamber is directly to be embedded in the pump cover and the space that forms by piston valve base.Even the stepped edge drive fit of the edge of piston valve base and pump cover inwall, but because the two material is harder, and resiliently deformable is little, and the extruding that is difficult to by each other forms the bigger face that is sealed and matched, and makes pipe press the chamber to have leakage hidden danger.In fact, when the pressure transient of tap water, when surpassing 8Kg, leaking just appears in employed suction booster, and water-outlet quantity and delivery pressure descend, and have influenced the production of pure water.

Summary of the invention

For overcoming the above-mentioned defective of prior art, the purpose of this utility model is to provide a kind of pump cover of the reverse osmosis suction booster of managing pressure chamber airtight performance and cooperating structure of piston valve base of increasing.

In order to solve above technical problem, technical solution adopted in the utility model is: on the fitting surface of pump cover edge and piston valve base periphery, O-ring seal is installed.A ring-shaped platform can be established in pump cover inwall edge, then is provided with groove on the edge of corresponding piston valve base with it, and embeds O-ring seal; Otherwise the pump cover inner wall edge is provided with groove, and embeds O-ring seal, and piston valve base matches with it.

Adopt structure of the present utility model, only need to make improvements slightly with the interface that cooperates of piston valve base, and an O-ring seal is installed, just solved the problem that pipe presses the chamber to leak, the service behaviour and the working life of having improved suction booster at pump cover.

Description of drawings

The three-dimensional exploded view of the suction booster that Fig. 1 relates to for prior art;

The anallobar structural representation that Fig. 2 relates to for the utility model.

Among the figure: 1, pump cover, 2, pipe presses the chamber, 3, central chamber, 4, piston valve base, 5, diaphragm, 6, the pump housing, 7, platform, 8,9, O-ring seal, 10, the hyperbaric chamber, 11, groove, 12, low pressure chamber.

Embodiment

Introduce the utility model in detail below in conjunction with accompanying drawing.

With reference to Fig. 2, at the middle position of pump cover 1 central chamber 3 of a tubular is arranged, there is outlet to be communicated with filtering membrane tube in it, piston valve is installed between pump cover 1 and the diaphragm of rubber sheet 5.

Around the hyperbaric chamber 10 of piston valve base 4 central authorities O-ring seal 9 is installed, corresponding with the central chamber 3 of pump cover, withhold then driving fit mutually and form a hyperbaric chamber; Several of the bottom periphery in piston valve base lower end surface, hyperbaric chamber are low pressure chamber 12 independently, forms if a low-pressure cavity by convex tendon and cooperating of groove with the diaphragm 5 of below.

At the stepped edge of pump cover 1 inwall one ring-shaped platform 7 is arranged, the edge of corresponding with it piston valve base 4 is provided with the groove 11 of inlaying O-ring seal 8.

Otherwise, also groove can be set on the pump cover inner wall edge, and embed O-ring seal, piston valve base position with matching is platform or convex tendon.

Also can on the two position of matching of pump cover inner wall edge and piston valve base, groove be set all, in a word, O-ring seal can be got final product by mounting board between pump cover and piston valve base.

Claims

1, the cooperating structure of a kind of pump cover of reverse osmosis suction booster and piston valve base, around the hyperbaric chamber (10) of piston valve base (4) central authorities corresponding O-ring seal (9) is installed with the central chamber (3) of pump cover (1), it is characterized in that: on the fitting surface of pump cover (1) edge and piston valve base (4) periphery, O-ring seal (8) is installed.

2, the cooperating structure of the pump cover of reverse osmosis suction booster according to claim 1 and piston valve base, it is characterized in that: a ring-shaped platform (7) can be established in described pump cover (1) inwall edge, then be provided with groove (11) on the edge of corresponding with it piston valve base (4), and embed O-ring seal (8);

3, the cooperating structure of the pump cover of reverse osmosis suction booster according to claim 1 and piston valve base is characterized in that: described pump cover inner wall edge is provided with groove, and embeds O-ring seal (8), and the corresponding position of piston valve base is provided with platform and matches with it.

4, according to the pump cover of claim 2 or 3 described reverse osmosis suction boosters and the cooperating structure of piston valve base, it is characterized in that: corresponding with described groove, as to be provided with platform position also can be convex rib structure.

5, according to the pump cover of claim 2 or 3 described reverse osmosis suction boosters and the cooperating structure of piston valve base, it is characterized in that: on the two position of matching of pump cover inner wall edge and piston valve base, groove is set all, with mounting board O-ring seal (8).