CN2357192Y - Pressure stabilizing valve - Google Patents

Abstract

A pressure maintaining valve. The utility model discloses a valve body, valve gap, wherein the valve body inner chamber is equipped with spring, dabber, core print seat, transfer line, water film, and the transfer line setting is equipped with regulation plug screw, steady voltage spring, the very board of water film in the valve gap between dabber and water film, and the very board of water film pastes and puts at the water film upper surface, and steady voltage spring sets up between regulation plug screw and the very board of water film. The utility model discloses owing to adopt the valve body structure of built-in double spring and water involucra, under the balanced power effect of two springs and water involucra, make the dabber be in suitable position in the core print seat, keep certain inflow, realize steady voltage, the stationary flow under the high water pressure condition.

Description

A kind of pressure maintaining valve

The utility model relates to a kind of pressure maintaining valve, particularly a kind of diaphragm type pressure maintaining valve that is applicable in the electric water heater intake pipe.

The water intake mode of existing electric water heater generally is directly directly to insert water sources such as tap water in the inner container of electric water heater, in the high area of hydraulic pressure, make the inner container of electric water heater long-term work under high pressure conditions, influence the normal use of inner container of electric water heater, even cause the damage of electric water heater, the working life of reducing electric water heater.When the water source variation in water pressure, water flow causes sometimes hot and sometimes cold phenomenon easily along with variation, makes troubles to use simultaneously.And because present water valve generally is by the direct switch that contact come controlled water flow of spool with body cavity, the big problem of noise appears easily.

The purpose of this utility model provides a kind of hydraulic pressure, waterflow stabilization, can effectively guarantee the inner container of electric water heater proper functioning, prolongs the inner container of electric water heater electric water heater pressure maintaining valve in working life.

The utility model comprises valve body, valve gap, wherein body cavity is provided with spring, mandrel, core print seat, drive link, water epithelium, core print seat is installed in body cavity, its sidewall is provided with some water inlets, mandrel is installed in the core print seat, spring is installed between valve body and the mandrel, and the water epithelium is arranged on valve body top, and drive link is arranged between water epithelium and the mandrel; Be provided with in the valve gap and regulate plug screw, pressure-stabilizing spring, moisture film and endure plate, moisture film is endured plate and is posted at water epithelium upper surface, regulates plug screw and is arranged on the valve gap top, and pressure-stabilizing spring is arranged on regulates plug screw and moisture film is endured between the plate.

The utility model is owing to adopt the valve body structure of built-in dual spring and water epithelium; when water when the core print seat sidewall enters body cavity; the adjusting plug screw that covers by modulating valve; under the equilibrant effect of two springs and water epithelium; make mandrel in core print seat, be in the appropriate location; keep certain inflow; under the big situation of original intake pressure, reduce the pressure of water outlet; promptly reach needed water pressure; realize the voltage stabilizing under the high hydraulic pressure situation; current stabilization; and when the valve body water outlet is closed; the pressure that accumulates in the water generates of body cavity acts on the power that the water epithelium is added spring; the promotion drive link moves upward; thereby make pressure-stabilizing spring; moisture film is endured plate; mandrels etc. move upward; make the sealer on mandrel surface can effectively seal up water inlet on the core print seat sidewall; promptly close the water source; otherwise when opening the water outlet of valve body; the water of body cavity is drained; the body cavity water pressure reduces; the water epithelium resets; add the active force of pressure-stabilizing spring; the promotion drive link moves downward; thereby make moisture film endure plate; mandrel; springs etc. move downward, and make mandrel slowly open water inlet on the core print seat sidewall, and water enters body cavity again; and reach hydraulic pressure; stablizing of water flow; thereby the long-term work of assurance inner container of electric water heater is effectively protected inner container of electric water heater under low-pressure state, prolong its working life; simultaneously; because water is to enter body cavity from the core print seat sidewall, and a progressive process is arranged, greatly reduce the noise of valve body action.

Describe basic structure of the present utility model and working principle in detail below in conjunction with accompanying drawing:

Fig. 1 is that structural representation cuts open in office of the present utility model;

Fig. 2 is the structural representation of the utility model core print seat;

As Fig. 1-shown in Figure 2, the utility model comprises valve body 1, valve gap 2, valve gap 2 is connected with valve body 1 and is one, wherein valve body 1 inner chamber is provided with spring 11, mandrel 12, core print seat 13, drive link 14, pole socket 15, water epithelium 16, core print seat 13 spinnings are at valve body 1 inner chamber, and the sidewall of core print seat 13 is provided with some water inlets 131, core print seat 13 is provided with seal ring 132 with the position that valve body 1 inner chamber joins, mandrel 12 is installed in the core print seat 13, and mandrel 12 outer wall surface are provided with one deck sealer, to guarantee the reliability of water inlet 131 sealings on mandrel 12 and core print seat 13 sidewalls.For making water when the water inlet 131 of core print seat 13 sidewalls enters valve body 1 inner chamber, a gradually slow opening and closing process is arranged, the top manufacturing of mandrel 12 is a cone.Spring 11 is installed between valve body 1 inner chamber base plate and mandrel 12 bottoms, and water epithelium 16 is arranged on valve body 1 top, and water epithelium (16) is rubber membrane, elastic metallic diaphragm or metal bellows diaphragm.For increasing the lifting surface area that drive link 14 contacts with water epithelium 16, be provided with pole socket 15 between water epithelium 16 and the drive link 14, this pole socket 15 comprises the pedestal of a larger area ceiling and fixed conveyor bar 14, wherein the larger area ceiling posts the lower surface at water epithelium 16, the pedestal of drive link 14 upper ends and pole socket 15 connects and joins, the top of mandrel 12 is provided with center hole, the bottom of drive link 14 is nested with in this center hole, transmission by drive link 14 like this, mandrel 12 and water epithelium 16 can be synchronized with the movement, promptly when water epithelium 16 stressed big, when raising up, can drive mandrel 12 and move upward, and water inlet 131 sealings of core print seat 13 are more, thus reduce flow of inlet water, reduce pressure, otherwise, then move downward, open water intake, keep water flow.Be provided with in the valve gap 2 and regulate plug screw 21, pressure-stabilizing spring 22, pressure-stabilizing spring seat 23, moisture film and endure plate 24, regulate plug screw 21 spinnings at valve gap 2 tops, and can be in the upper and lower motion of valve gap 2 inner chambers, regulating the stress of pressure-stabilizing spring 22, thus the size of control valve body inner chamber water pressure.For increasing the area of contact of water epithelium 16 and pressure-stabilizing spring 22, effectively the force-bearing situation with water epithelium 16 is delivered on the pressure-stabilizing spring 22, above water epithelium 16, post a larger area moisture film and endured plate 24, for further with the stress of water epithelium 16 with pressure-stabilizing spring 22 effective connections to, moisture film is endured plate 24 and is provided with pressure-stabilizing spring seat 23, this pressure-stabilizing spring seat 23 comprises and posts the pedestal of enduring the dull and stereotyped and fixed stably pressing spring 22 of larger area on the plate 24 at moisture film, the lower end of pressure-stabilizing spring 22 is fixed on the pedestal of pressure-stabilizing spring seat 23, the upper end of pressure-stabilizing spring 22 then is fixed on regulates plug screw 21 bottoms, and moisture film is endured plate 24 and is arranged on valve gap 2 bottoms.

Claims (8)

1, a kind of pressure maintaining valve, it is characterized in that comprising valve body (1), valve gap (2), wherein valve body (1) inner chamber is provided with spring (11), mandrel (12), core print seat (13), drive link (14), water epithelium (16), core print seat (13) is installed in valve body (1) inner chamber, its sidewall is provided with some water inlets (131), mandrel (12) is installed in the core print seat (13), spring (11) is installed between valve body (1) and the mandrel (12), water epithelium (16) is arranged on valve body (1) top, and drive link (14) is arranged between water epithelium (16) and the mandrel (12); Be provided with in the valve gap (2) and regulate plug screw (21), pressure-stabilizing spring (22), moisture film and endure plate (24), moisture film is endured plate (24) and is posted at water epithelium (16) upper surface, regulate plug screw (21) and be arranged on valve gap (2) top, pressure-stabilizing spring (22) is arranged on adjusting plug screw (21) and moisture film is endured between the plate (24).

2,, it is characterized in that above-mentioned water epithelium (16) is rubber membrane, elastic metallic diaphragm or metal bellows diaphragm according to the described pressure maintaining valve of claim 1.

3,, it is characterized in that mandrel (12) outer wall surface of above-mentioned valve body (1) is provided with one deck sealer according to the described pressure maintaining valve of claim 1.

4, according to claim 1 or 3 described pressure maintaining valves, the top that it is characterized in that above-mentioned mandrel (12) is cone.

5,, it is characterized in that the core print seat (13) of above-mentioned valve body (1) and the position that valve body (1) joins are provided with seal ring (132) according to claim 1 or 3 described pressure maintaining valves.

6, according to the described pressure maintaining valve of claim 1, it is characterized in that the mandrel (12) of above-mentioned valve body (1) is provided with center hole, the bottom of above-mentioned drive link (14) is nested with in this center hole.

7, according to claim 1 or 6 described pressure maintaining valves, it is characterized in that also being provided with in the above-mentioned valve body (1) pole socket (15), this pole socket (15) comprises and posting at the larger area ceiling of water epithelium (16) lower surface and the pedestal of fixed conveyor bar (14) that the pedestal of the upper end of drive link (14) and pole socket (15) joins.

8, according to the described pressure maintaining valve of claim 1, it is characterized in that also being provided with in the above-mentioned valve gap (2) pressure-stabilizing spring seat (23), this pressure-stabilizing spring seat (23) comprises and posts the pedestal of enduring the dull and stereotyped and fixed stably pressing spring (22) of larger area on the plate (24) at moisture film.

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