CN2063996U - Auto-closed tap - Google Patents

Abstract

The utility model relates to an automatic closing water tap when the water is not provided. The utility model is a tap water supply fitting that the buoyancy and the pressure of the tap water control the opening and the closing of the automatic closing water tap, and the automatic closing water tap automatically closes when the water is cut off. A floating block and a hydraulic lifting piston are used for driving a valve rod to lift a valve clack to automatically close a water outlet. A cam handle with a still groove is used for controlling the lifting of the valve rod and playing the closing and the opening functions. When the water is not provided or the water is cut off in midway, the handle automatically comes back to the closing position, and the automatic closing water tap lies in the normal closing state and has no water escaping. The utility model overcomes the phenomena that the old type water tap is opened and closed by the lifting of a threaded valve rod as the water is not provided; the water escaping is caused when the water is cut off in midway and is forgotten to be closed, and is novel water tap which has no water escaping, water overflowing, water dropping and water leaking and automatically closes when the water is not provided.

Description

Auto-closed tap

The utility model is to control keying with buoyancy of water and pressure from the beginning, and the new-type water of closing automatically after cutting off the water supply is chewed.

The ordinary water of prior art manufacturing is chewed in use and is had the following disadvantages:

1, Timing water supply family Chang Yin forgets and closes, and metals run out when coming water, causes waste and indoor floods.

2, the valve rod place is because of the poorly sealed water that outwards emits of long-term use.

3, leak after easy pressure break of rubber valve pad or the abrasion.

4, for preventing corrosion and polluted water, the screw thread valve rod can only adopt the copper material, and the cost of its material cost and processing charges is higher.

The utility model is introduced a kind of anhydrous Shui Zui that closes automatically, and it opens and closes without the screw thread valve rod, but opens and closes anhydrous new structure of closing automatically with the pressure control of tap water.

The purpose of this utility model is to improve ordinary water to chew, and overcomes the deficiency of prior art, makes a kind of no run, drip, leak, using water wisely, exempts from water logging, and easy for operation, the new-type water that cost is low is chewed.

The anhydrous water of closing is automatically chewed by valve body (1), cam start-stop device (2) (3) (4), float lifting control valve unit (7)～(10)～(14) and is formed.

Above-mentioned purpose can reach like this, have the water of certain pressure to be full of during water supply to have promote hydraulic chamber (1～3) and float chamber (1～2) cut down body (1).By valve rod (10), the float lifting control valve unit that jigger lifting piston (7) (8) flap (13) float (14) is formed cuts out water outlet (1～4) automatically under buoyancy of water and pressure effect.Start-stop device is made up of the cam handle that has static groove (2～1) (2) bearing pin (3) and fixed base (4).Upwards handle with sleeve (2) is depressed valve rod (10) by cam, makes whole float lifting device decline open water outlet (1～4) and discharges water.Because cam handle (2) cam end outer rim has static groove (2～1), drive valve body (10) upwards under the thrust at jigger lifting piston (7) (8), roll shaft (5) top of valve stem tip is solid in going to the static groove of center line in (2～1).Make cam handle be still in the position of unlatching, play the effect that long-time unlatching discharges water.Only need when closing handle (2) is moved back to the position of closing originally, jigger lifting piston (7) (8) and float (14) upwards promote valve rod (10) under the pressure of water and buoyancy function, and drive flap (13) is closed water outlet (1～4) automatically.

When cutting off the water, the no hydraulic pressure in hydraulic pressure lift chamber (1～3) even handle with sleeve is opened because of the thrust of valve rod (10) on undirected, makes handle can not be fixed on long-time enable possition under the effect of static groove, the deadweight of armrest pommel falls to returning to closed position naturally, plays the effect of waterless normal-closure.(also cutting off the water in like manner in the middle of opening, handle can fall to closing automatically).

The float chamber design is lower than water intake (1～1), and the water when cutting off the water in the float chamber still can make float upwards float the deadweight of supporting the float lifting device, keeps long and closes state, recovers water during water supply and chews normal function, reaches the purpose of not metalling run out.

Chew to chew following advantage relatively arranged according to the anhydrous water of closing automatically that the utility model is made with ordinary water:

1, the Timing water supply family has been avoided forgetting Guan Shui and is chewed and metal run out, and has played using water wisely, avoids the hardship of water logging.

2, no screw thread valve rod opens and closes by cam handle, and is simple to operation.

3, piston and valve stem seal place adopt many lips rubber cup, and the change static seal is motive sealing.Piston and the valve rod little abrasion of straight line motion distance up and down are little, and the abrasion amount can be replenished at hydraulic pressure down cup amount of deformation, has avoided emitting the problem of water and water clock.

4, no screw thread valve rod can have been saved the materials processing expense without non-ferrous metal and machining screw, has reduced product cost.

5, no screw thread valve rod is not high to the Manufacturing material requirement of strength, can all adopt non-toxic plastic to make, and it is low to reach cost, surface aesthetic, the effect of non-corroding, health.

Figure (one) chews one of example for the anhydrous water of closing automatically, with reference to this figure elaboration in addition detailed to the utility model: valve body (1) is respectively equipped with the float chamber (1～2) that separated by septal leaflet (11) and promotes hydraulic chamber (1～3), during water supply, water is full of valve body, water in the float chamber floats float, and its buoyancy equates with the deadweight of float lifting device.The float chamber position is lower than water intake (1～1).The back float chamber water of cutting off the water supply can support the deadweight of float lifting device not fall and normally closed water outlet (1～4), promote hydraulic chamber (1～3) and be equivalent to an oil hydraulic cylinder, the clean degree of worker of inwall processing higher ( More than 6), to guarantee the work of jigger lifting piston.(16) have centralized positioning groove (16～1) to stablize valve rod at the bottom of the valve.

The float lifting device is made up of float (14) valve rod (10) and jigger lifting piston (7) (8), and float can adopt hollow-core construction or rigid foam block to make, and makes it have enough buoyancy.Valve stem piston can adopt plastics or light metal to make and make the float lifting device keep volume little, in light weight as far as possible, make it have good automatic closing function under the effect of buoyancy of water and pressure.Piston is by multi-lip seal rubber cup (8) and be added with Support cushion (7) up and down and form, and multi-lip seal rubber cup selection standard spare has good withstand voltage and sealability.The sealing at valve body place (9) is adopted and to be adorned the sealing of many lips rubber cup on the valve rod to change the standstill seal that old-fashioned water chews be motive sealing.The magnitude of interference of leather cup (8) (9) is 0.4～0.8mm anhydrous depressing, and makes the less flexible movements of frictional force of float lifting device knee-action.Float lifting device knee-action is just little apart from the abrasion of weak point, sealing cup, and its abrasion part forces the leather cup distortion to replenish under the pressure of water, so this device has good seal, uses durablely, and nothing is emitted water, weeping.

Start-stop device is made up of handle (2) bearing (4) bearing pin (3).Handle (2) one ends have cam, and the outer rim of cam has static groove (2～1) on different amount, radius.According to the size of institute's water requirement, handle goes to different amount, makes roll shaft (5), the roll shaft of static groove alignment valve rod end block groove under the thrust that valve rod makes progress.Make and removed the handle that discharges water and be still in normally open.The design's cam has three grooves, three kinds of flows that vary in size of may command, and its peak rate of flow control groove can not surpass handle center, and the maximum angle that handle has been removed is no more than the valve body center line.Promptly less than 90.Make the center of gravity of handle be no more than center line.After assurance was cut off the water supply, handle can fall down naturally with the deadweight of handle end under the support of no valve rod upward force, recovered normally closed position.Added roll shaft (5) between cam and valve body, made the transmission of cam rotation screw down valve stick force, being become with the roll shaft by the slip of direct contact is the rolling transmission of media, make handle removed with put down more laborsaving.Bearing (4) is fixed on the valve body top by garden ring screw thread (6).The effect that divides water septal leaflet (11) be with float chamber with promote hydraulic chamber and separate so that when discharging water, the reduction of float chamber hydraulic pressure is littler to the influence of hydraulic pressure of lifting chamber.Make promote chamber and intake pressure one to, have enough lifting force support handles and often open.(15) (12) are and are equipped with tight nut.

So far introduced clearly that a kind of water supply accessory---anhydrous automatic closing water is chewed, it has satisfied the water supply requirement of running water. And played the purpose of water saving, can replace various old-fashioned water to chew, can make other type pipeline valve with its principle. Being suitable for all has in the water supply line of pressure.

Claims (5)

1, a kind of anhydrous water of closing is automatically chewed, and its technical characteristics is: form by cutting down body (1), starting handle (2) and float lifting control valve unit.

2, anhydrously close water automatically to chew its technical characteristics be to cut down lifting hydraulic chamber (1～3) and the float chamber (1～2) that body (1) is specifically separated by septal leaflet (11) according to claim 1 is described.

3, anhydrously close water automatically to chew its technical characteristics be to open and close handle (2) one ends to have cam according to claim 1 is described, the cam outer rim has static groove (2～1).

4, according to the claim 1 described anhydrous Shui Zui that closes automatically, its technical characteristics is that the float lifting valve is made up of float piece (14), piston (7) (8), valve rod (10), petal (13) and roll shaft (5).

5, according to claim 4 described float lifting valves, its technical characteristics is that many lips rubber ring (8) (9) is adopted in the sealing of piston, valve rod and valve body.