CN2174611Y

CN2174611Y - Automatic cut-off pressure-reducing valve and air-outlet valve for high-level closed water tank

Info

Publication number: CN2174611Y
Application number: CN 93241293
Authority: CN
Inventors: 王晓廷
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-05
Filing date: 1993-10-05
Publication date: 1994-08-17
Anticipated expiration: 2003-10-05

Abstract

The utility model relates to an automatic cut-off pressure reducing valve and an air outlet valve which are used for a high-level closed water tank. A curved surface 12 with a water crossing opening 11 is arranged in a pressure reducing valve 3, and a drum membrane 9 and a spring 6 drive a connecting rod 10 and a sealed cushion 13 to realize that the water crossing opening 11 is closed or opened. A floating ball 17 is arranged in a valve tube 16 of an exhaust valve 1, and a cushion ring 19 of an irregular inner hole is arranged at the bottom of a valve tube 16. The pressure reducing valve 3 is matched with the exhaust valve 1, and the automatic cut-out water supply is realized for the high-level water tank to prevent the water tank from cracking; the utility model can carry out the unattended operation, can not affect the normal work and rest of a person and is suitable for various closed water tanks and solar water heaters.

Description

Automatic cut-off pressure-reducing valve and air-outlet valve for high-level closed water tank

The utility model relates to a kind of high-order closed tank automatic cut-off reduction valve and outlet valve.

The elevated tank of most of apparatus for heating water by solar energy all adopts the way of supplying water of upper and lower two water pipes, its water storage box be open type, in the structure of ball check valve is housed.This device makes water pipe more, and inconvenience is installed, and unhygienic, because of the lever press seal stop valve of ball float is easy to damage, so belong to obsolete product basically.The closed water tank that now uses is health relatively, but shortcoming is can not stop automatically supplying water when waterborne expiring, but is overflowed by the open relief opening of water tank, causes waste easily.Especially hydraulic pressure is bigger night in the city, filling up water case easily, but when people sleep soundly, often can't grasp the regimen condition, or because of the untimely water tap spilling water of closing causes waste, or the normal rest of influence.So far, yet there are no reduction valve and the outlet valve that the closed water tank automatic cut-off of a high position is supplied water and reduced pressure.

In order to overcome the deficiency in the above-mentioned background technology, the utility model aims to provide a kind of high-order closed water tank automatic cut-off reduction valve and exhaust that is used for the upper and lower water supply of single tube and interosculates and use, but it should have the function that when being full of water in water tank automatic cut-off is supplied water and reduced the water tank internal pressure, can prevent when hydraulic pressure spalling water tank or apparatus for heating water by solar energy greatly the time.

To achieve these goals, the technical solution that the utility model proposed is: in the reduction valve valve gap that links to each other with water tank the adjusting nut is housed, eardrum is between valve gap and valve body, spring is installed on to be regulated between nut and the compressing tablet above the eardrum, having one in the valve body had the mouth of a river and body cavity was into the curved surface in two spaces, one end of connecting rod passed the mouth of a river and was connected with compressing tablet and eardrum, and the other end is established a valve block that has a sealing gasket.One end of connecting rod is fixed by nut and compressing tablet and eardrum, the other end with sealing gasket be a ring taper cushion.The said lower edge, the mouth of a river of crossing is provided with the chamfering that the annular conical surface with sealing gasket adapts.The outlet valve that is installed on the top of water tank is made of valve pipe, ball float, screwed pipe and packing ring, and wherein the top of valve pipe is the open circles taper, and valve pipe bottom is anchored in the screwed pipe, and ball float is arranged in the valve pipe, and packing ring is positioned at valve pipe end opening place.The internal diameter of valve pipe bottom is slightly larger than the diameter of ball float, between valve pipe bottom and the screwed pipe seal ring is housed, and the endoporus of packing ring is rectangular opening, delthyrium or petal hole.

Fig. 1: the structural representation of reduction valve in the utility model.

Fig. 2: the structural representation of outlet valve in the utility model.

Fig. 3: the mounting point figure of reduction valve and outlet valve.

Below in conjunction with drawings and Examples the utility model is done an explanation.

As shown in Figure 1, establish an elastic packing eardrum 9 between the valve body 14 of reduction valve 3 and the valve gap 4, spring 6 compresses compressing tablet 8 on eardrum 9.Be provided with a curved surface 12 in the valve body 14, on curved surface 12, leave one and cross the mouth of a river 11 with respect to the position of spring 6.The other end that one end has a connecting rod 10 of ring conical gasket 13 and valve block 15 passed the mouth of a river 11 and eardrum 9, compressing tablet 8 is fastening by nut 7.Have the chamfering that the annular conical surface with sealing gasket 13 adapts in the lower edge of crossing the mouth of a river 11,, guarantee sealing effect to increase sealing gasket 13 and the area of contact of crossing the mouth of a river 11.Referring to Fig. 2, valve pipe 16 upper ends of outlet valve 1 are provided with opening, and have taper shape and pull out slightly.Valve pipe 16 bottoms are fastening with the mouth of pipe 21 on the water tank 2 by screwed pipe 18, and are provided with seal ring 20 between valve pipe 16 and screwed pipe 18.Place the ball float 17 that a diameter is slightly less than valve pipe 16 internal diameters in the valve pipe 16, this ball float 17 is hollow soft plastic ball or hollow rubber ball, have enough sealabilities so that push against by buoyancies of water in the water tank 2 and pressure when valve pipe 16 pulls out slightly part, water is flowed out and cause waste.In screwed pipe 18, be positioned at valve pipe 16 bottoms and also be equipped with a packing ring 19, the endoporus of this packing ring 19 for can make current by but can not make ball float 17 drop down onto the non-round irregularly-shaped hole of the shapes such as rectangle, triangle or petal in the water tank 2.As shown in Figure 3, reduction valve 3 is communicated with water tank 2 bottoms, and outlet valve 1 is connected and fixed with the mouth of pipe 21 on water tank 2 tops.

During feed tank 2 water-fillings, current enter water tank 2 from the space B in the valve body 14 through the mouth of a river 11 and space A.Because the pressure at this time space A, B two places equates that eardrum 9 can not move, the air in the water tank 2 is discharged by space between packing ring 19 endoporus and the ball float 17 and valve pipe 16 tops gradually along with increasing gradually of liquid level.During waterborne expiring, ball float 17 shifts to the part slightly of pulling out of valve pipe 16, and hydraulic pressure is big more, and ball float 17 supports tightly more, and the water in the water tank 2 then can not outflow and avoid waste.When the space of water tank 2 and valve body 16 A internal pressure increased, eardrum 9 was a stressed generation resiliently deformable and overcome spring 6 power and bloat to valve gap 4 directions, and then drivening rod 10 makes sealing gasket 13 and valve block 15 will cross the mouth of a river 11 sealings.Also there is certain pressure to exist at this moment in the space B of valve body 14, also can applies certain pressure, guarantee sealing effect sealing gasket 13 and valve block 15.If in the time of need carrying out shower or use with the water that heats through heat exchange in the water tank 2, as long as open the valve of water pipe, make the pressure of the pressure of space B in the valve body 14 less than space A, because the effect of spring 6 power, can make sealing gasket 13 and valve block 15 break away from the mouth of a river 11, the water in the water tank 2 will flow down smoothly for the user and use.Reduction valve 3 must be used in combination simultaneously with outlet valve 1, thereby can realize the purpose of the closed water tank automatic cut-off water supply of a high position, reduction water tank 2 internal pressures is accomplished unmanned, guarantees people's normal rest.Also can avoid making the phenomenon of water tank or apparatus for heating water by solar energy spalling because of hydraulic pressure is excessive.

Reduction valve described in the utility model and outlet valve reasonable in design, simple in structure, install easily, convenient being suitable for.The two is used in combination and has overcome the deficiency in the background technique, can realize that closed water tank automatic cut-off is supplied water, reduced the water tank internal pressure to a high position, prevents the phenomenon because of excessive spalling water tank of hydraulic pressure or apparatus for heating water by solar energy.Neither cause the waste of water, do not influence people again and normally have a rest, applicable to all high-order closed tank and solar water-heating system.

Claims

1, a kind of high-order closed tank automatic cut-off reduction valve, be equipped with in the valve gap (4) of the reduction valve (3) that links to each other with water tank (2) and regulate nut (5), eardrum (9) is positioned between valve gap (4) and the valve body (14), spring (6) is installed between the compressing tablet of regulating above nut (5) and the eardrum (9) (8), it is characterized in that having in the valve body (14) one had the mouth of a river (11) and with valve body (14) inner chamber for becoming two space (A, B) curved surface (12), one end of connecting rod (10) passed the mouth of a river (11) and was connected with compressing tablet (8) and eardrum (9), and the other end is established a valve block (15) that has sealing gasket (13).

2, automatic cut-off reduction valve according to claim 1, an end that it is characterized in that connecting rod (10) is fixing with compressing tablet (8) and eardrum (9) by nut (7), the other end with sealing gasket (13) be a ring taper cushion.

3, automatic cut-off reduction valve according to claim 1 and 2 is characterized in that the said chamfering that lower edge, the mouth of a river (11) is provided with and the annular conical surface of sealing gasket (13) adapts of crossing.

4, the matching used outlet valve of the described reduction valve of a kind of and claim 1, be installed on the top of water tank (2), it is characterized in that this outlet valve (1) is made of valve pipe (16), ball float (17), screwed pipe (18) and packing ring (19), wherein the top of valve pipe (16) is the open circles taper, valve pipe (16) bottom is anchored in the screwed pipe (18), ball float (17) is arranged in valve pipe (16), and packing ring (19) is positioned at valve pipe (16) end opening place.

5, outlet valve according to claim 4, it is characterized in that the internal diameter of described valve pipe (16) bottom is slightly larger than the diameter of ball float (17), between valve pipe (16) bottom and the screwed pipe (18) seal ring (20) is housed, the endoporus of packing ring (19) is rectangular opening, delthyrium or petal hole.