CN203129255U - Tap water air master valve - Google Patents

Abstract

The utility model relates to a valve device and particularly relates to a tap water air master valve which is assembled at the water supplying end of a tap water pipe net and has a water-stopping and anti-leaking protection function. The tap water air master valve is provided with an anti-leaking protection valve (2) and a resetting starting valve (6), which are connected in parallel, wherein the anti-leaking protection valve (2) is provided with a floater chamber (4); a water inlet and a water outlet are respectively arranged at the upper and lower ends of the floater chamber (4); the two ends of the floater chamber (4) are tapered; the floater chamber (4) are internally provided with a spherical floating plug (3); when the floating plug (3) is fitted with the water outlet at the lower end of the floater chamber (4), the water outlet can be completely closed; and the resetting starting valve (6) is a switching water valve and is used for opening the anti-leaking protection valve (2) after water supply is recovered. According to the tap water air master valve disclosed by the utility model, a tapered design at the two ends of a valve chamber enables the spherical floating plug to roll to the outlet when no water exists; and water pressure and buoyancy force of the floating plug in the water are sufficiently utilized to realize resetting opening of the anti-leaking protection valve. The device is simple in structure, is reliable to seal and plug and is more convenient to reset.

Description

Tap water air main valve

Technical field

The present invention relates to a kind of valve gear, especially be fitted in tap water pipe network water supply end, play the valve gear of cut-off leakage-proof protective effect.

Background technology

Water supply end (as the running water tap of public place or family) at the tap water pipe network, such situation often appears: namely turn on the water tap discovery when cutting off the water as people, might forget and turn off water tap, when resuming water supply, water tap will discharge water continuously, if in time do not found, not only cause the waste of water resource, and the serious consequence that article, place are flooded occurs.

Be 91210660.3 in the patent No., name is called in the Chinese utility model patent of " a kind of switch of drinking water water-stopping self-closing ", a kind of valve gear for addressing the above problem is disclosed, its main action principle is: during normal water supply, filled water in the float chamber, float is in the upper end of float chamber, the valve open that links to each other with float, and water can flow through from valve; Cut off the water and after water tap opened, the water in the float chamber was drained, float drops to the bottom, has a magnet ring to be held by the magnet of bottom on the float, the valve closing that links to each other with float; Again after supplying water, be full of water in the float chamber again, but the buoyancy of float is less than the suction of magnet, valve is in closed condition, at this moment, closes water tap even people have forgotten, the phenomenon that water tap also can not occur metalling run out; Water tap is resumed water supply, must remove to back down magnet ring with a push rod, make float recover the normality that suspends.

This utility model is owing to only depend on magnet suction closing valve, the poor reliability of shutoff; It installs a push rod that backs down magnet ring at switch housing in addition, has formed a push rod pilot hole that easily leaks at switch, leaks easily when sealing the breakage of imprecision or seal; Make the action need of valve reset rotate back and forth push rod end, inconvenient operation by push rod.

Be WO2009/008002 A2 in the patent No., name is called in the Europatent of " liquid saving flow control device ", a kind of valve gear for addressing the above problem is also disclosed, the main action principle of its narration is: the water inlet pipe and water outlet pipe of " saving flow control valve " is laterally installed, when normal water supply, fill water in the valve, unsteady object floats over valve chamber first half place, the tap of fetching boiling water, because the hydro-flow thrust of the water inlet pipe of control valve, make limit element upwards just stop unsteady object to enter the bottom of container, the normal water outlet of water tap.Cut off the water in water way and do not turn off the tap or the anhydrous tap of fetching boiling water is forgotten and closed, do not have water in the valve, because self quality and gravity, the step end that limiting element and unsteady object will drop to valve chamber stops entrance and exit.Resume water supply, the current attempt just impels limit element tightly to be close to unsteady object by valve midway, and the water tap of at this moment holding can water outlet yet.The user can make the object come-up of floating by the spring valve that is connected in parallel on the pipeline if need to recover normal water supply, realizes normal water supply.

From documents the 8th figure as can be seen: this invention is owing to adopt the water inlet pipe and water outlet pipe transverse design, the space that is higher than the water inlet pipe and water outlet pipe place when making each water supply in the control valve all has been full of pressure-air, opening spring valve in parallel can not discharge the little gas of valve chamber internal ratio water density from outlet pipe, unsteady thing is more impossible to be floated in the air of valve chamber.Therefore, patent WO2009/008002 A2 Fig. 8 " show that liquid saves the another kind of flow control device and embody " of describing is actual is inoperable.From Fig. 1 to Fig. 4 of patent WO2009/008002 A2 and Figure 10 to Figure 12 as can be seen: " liquid saving flow control device " can work.But trouble is not only installed in design part (21) and (16) in the valve chamber, and does not have practical significance.Because it has adopted the transverse design water inlet pipe and water outlet pipe, the trouble of still having brought valve chamber inner high voltage gas not discharge automatically equally.So, for discharge gas just in the valve chamber tip designs exhaust plant " ventilation opening ".Obviously, also discharge water simultaneously is next inevitably during exhaust, and this just will cause the surrounding environment humidity, and the harm that brings is well imagined.And the global design complexity, cost is inevitable higher.

Summary of the invention

Shutoff was reliable when the problem to be solved in the present invention provided a kind of cutting off the water, and the leakproof water-stop is guaranteed easily, and is simple in structure, cheap, and reset operation tap water cut-off leakage-proof protection valve device more easily.

For solving the problems of the technologies described above, tap water air main valve provided by the invention, include leakage-proof protection valve and the servicing unit starter gate valve that resets, leakage-proof protection valve has float chamber, the upper and lower side of float chamber has water inlet and the delivery port of the band screw socket (" screw socket " do not mark in the drawings) that is connected with water pipe respectively, the float chamber middle part is cylindric, two ends are the position taper, a spherical floating plug is housed in the float chamber, this delivery port can be closed fully when the delivery port of floating plug and float chamber lower end fits; The starter gate valve that resets is switch water valve, in order to open leakage-proof protection valve after resuming water supply, makes water system recover unimpeded state; Leakage-proof protection valve is in parallel with the starter gate valve that resets.

During use, string of the present invention is contained on the water pipe that is close to tap water pipe network water supply end, the leakage-proof protection valve water inlet pipe and water outlet pipe must vertically be installed.

When the pipe network normal water supply, the starter gate valve that resets is in normal closed condition, and leakage-proof protection valve is in normally open, and pipe network is held as the water tap transporting water to supplying water by leakage-proof protection valve, and the floating plug in the float chamber is positioned at the upper end of float chamber under buoyancy at this moment;

When pipe network was cut off the water, if forget after the water tap that links to each other with the float chamber delivery port is opened and close, the water in the float chamber was drained and floating plug descends, and is full of air in the float chamber simultaneously, and floating plug is blocked the delivery port of float chamber, and leakage-proof protection valve is closed; When pipe network resumed water supply, the water and the gases at high pressure that enter in the float chamber made spherical floating plug upper pressure greater than bottom pressure, and floating plug can only touch the delivery port of float chamber more closely.Therefore, even water tap is being opened, water can not flow out yet, thereby prevents that article and place from being flooded, avoided the waste of water resource yet;

When needing water; only need close water tap; controlling the starter gate valve that resets then opens it; water in the pipe network and the gases at high pressure in the float chamber make the floating plug upper and lower sides at float chamber delivery port place all be full of water by the starter gate valve that resets; floating plug bottom pressure produces buoyancy greater than upper pressure; floating plug is because moving on the buoyancy, and leakage-proof protection valve is opened and normal water supply, and the starter gate valve that after this resets automatically returns to normally off.

The present invention is by the conical design of leakage-proof protection valve, by the starter gate valve that resets, and utilizes tap water to act on size that the pressure conversion of floating plug top and the bottom changes floating plug buoyancy and implements shutoff and open.It is not only simple in structure, easy to operate, and shutoff is reliable, and leak resistance is protected.

Description of drawings

Fig. 1 is simplified structure schematic diagram of the present invention;

Fig. 2 is the present invention at water supply state, floating plug drawing of site when water tap is closed;

Fig. 3 is the present invention at water supply state, floating plug drawing of site when water tap is opened;

Fig. 4 is the present invention at the state of cutting off the water, floating plug drawing of site when water tap is opened;

Fig. 5 be the present invention resume water supply, floating plug drawing of site when water tap is opened;

Fig. 6 is that the present invention is closing water tap, starting the floating plug drawing of site when resetting starter gate valve.

Among the figure: 1. water inlet end union; 2. leakage-proof protection valve; 3. floating plug; 4. float chamber; 5. titting water outlet; 6. starter gate valve resets; 7. water tap.

The specific embodiment

The invention will be further described below in conjunction with drawings and Examples: as shown in Figure 1, tap water air main valve of the present invention has leakage-proof protection valve 2 and the servicing unit starter gate valve 6 that resets, the pneumatic operated valve 6 that resets is delay flushing valve, can close automatically after pressing, leakage-proof protection valve 2 has float chamber 4, float chamber (4) up and down the two ends water inlet pipe and water outlet pipe have can with water inlet and the delivery port of the supporting screw socket that is connected of tap water pipe network (" screw socket " do not mark in the drawings), the float chamber middle part is cylindric, top and the bottom are taper, float chamber is equipped with a floating plug 3 for 4 li, this delivery port can be closed fully when the delivery port of floating plug 3 and float chamber 4 lower ends fits; The starter gate valve 6 that resets is switch water valve, in order to after resuming water supply, opens leakage-proof protection valve 2; Leakage-proof protection valve 2 and the starter gate valve 6 that resets are connected in parallel between water inlet end union 1 and the water side union 5, and the import and export of the float chamber (4) of leakage-proof protection valve (2) must vertically be installed up and down.

During use, string of the present invention is contained in is close to the tap water pipe network and supplies water on the water pipe of end as water tap, its operating principle is:

When the pipe network normal water supply, the starter gate valve 6 that resets is in normal closed condition, leakage-proof protection valve 2 is in normally open, pipe network is by water tap 7 transporting water of leakage-proof protection valve 2 to the end that supplies water, if water tap 7 is closed, as shown in Figure 2, this moment 4 li of float chambers floating plug 3 under buoyancy, be positioned at the upper end of float chamber 4; If water tap 7 is opened and discharged water, floating plug 3 moves down certain distance slightly under flow action, as shown in Figure 3.

When pipe network is cut off the water, close if forget after the water tap that links to each other with float chamber 4 delivery ports is opened, water in the float chamber 4 is drained and floating plug 3 declines, be full of air in the float chamber 4 simultaneously, because float chamber 4 bottoms are taper, spherical floating plug will accurately drop to the exit of float chamber 4, as shown in Figure 4, block the delivery port of float chamber 4, leakage-proof protection valve is closed;

As shown in Figure 5, when pipe network resumes water supply, the water and the gases at high pressure that enter 4 li of float chambers make spherical floating plug upper pressure greater than bottom pressure, floating plug can only touch the delivery port of float chamber more closely, even therefore water tap is being opened, water can not flow out yet, thereby prevents that article and place from being flooded, and has avoided the waste of water resource yet.

As shown in Figure 6, when needing water, control the starter gate valve 6 that resets earlier it is opened, the water in the pipe network and gases at high pressure make the gases at high pressure in the float chamber 4 discharge together with current by the starter gate valve 6 that resets.Close water tap 7 then, because the floating plug 3 bottom pressure at float chamber 4 delivery port places are greater than upper pressure, floating plug 3 is because moving on the buoyancy, and leakage-proof protection valve 2 is opened and normal water supply.After this starter gate valve 6 that resets automatically returns to normally off.

Float chamber 4 usefulness transparent materials are made, and are convenient to see through transparent float chamber 4 and observe whether water is wherein arranged, and namely whether pipe network has recovered water supply, also is convenient to observe the working condition of floating plug 3.Float chamber 4 inner chamber lateral dimensions keep clear the water that enters 4 li of float chambers greater than the internal diameter of the water pipe that is attached thereto and floating plug when discharging.

The starter gate valve 6 of resetting is pressing delay-self-closing switch water valve, even have the people to press because of carelessness when cutting off the water to reset starter gate valve 6, it also can automatically reset to normally off.Satisfying under the condition of above-mentioned functions, also the optional switch water valve that other form of structure is arranged.

Floating plug 3 be soft spherical, density is littler than water, utilizes its elastic deformation float chamber 4 delivery ports that make it to fit more closely.

The present invention can be fitted on the single water tap water pipe by water inlet end union 1 and water side union 5, controls single water tap; Also can be installed in a plurality of water taps of control on the tap water supply end water pipe in each household family or every building.

Claims (5)

1. tap water air main valve, it is characterized in that: comprise leakage-proof protection valve (2) and the starter gate valve that resets (6), this leakage-proof protection valve (2) has float chamber (4), float chamber (4) middle part is cylindric, upper and lower side has water inlet and the delivery port of the band screw socket that is connected with water pipe respectively, float chamber (4) two ends are taper, and a spherical floating plug (3) is equipped with in float chamber (4) lining, this delivery port can be closed fully when the delivery port of floating plug (3) and float chamber (4) lower end fits; The described starter gate valve that resets (6) is delay flushing valve, in order to after resuming water supply, opens the leakage-proof protection valve (2) that closes sealing; Described leakage-proof protection valve (2) is in parallel with the starter gate valve that resets (6).

2. tap water air main valve as claimed in claim 1, it is characterized in that the available transparent material of described float chamber (4) makes, the middle part is cylindric, two ends are taper, float chamber (4) inner chamber lateral dimension is greater than the internal diameter of the water pipe that is attached thereto and floating plug (3), float chamber (4) up and down the two ends water inlet pipe and water outlet pipe have can with the supporting screw socket that is connected of tap water pipe network.

3. tap water air main valve as claimed in claim 1; it is characterized in that described leakage-proof protection valve (2) and the starter gate valve that resets (6) are connected in parallel between water inlet end union (1) and the water side union (5), and the import and export of the float chamber (4) of leakage-proof protection valve (2) must be installed vertically up and down.

4. as claim 1,2 or 3 described tap water air main valves, it is characterized in that the described starter gate valve that resets (6) is pressing delay-self-closing switch water valve.

5. as claim 1,2 or 3 described tap water air main valves, it is characterized in that described floating plug (3) is density soft spherical less than water, floating plug (3) utilizes the pyramidal structure of float chamber (4) to realize independent blocking pipe, and floating plug (3) is opened the back by the starter gate valve that resets (6) and realized that come-up makes pipeline recover unobstructed automatically.

Images