CN202672292U

CN202672292U - Water inlet valve

Info

Publication number: CN202672292U
Application number: CN 201220269148
Authority: CN
Inventors: 刘永茂; 张子鹏
Original assignee: Lab Xiamen Sanitary Fittings Inc
Current assignee: Lab Xiamen Sanitary Fittings Inc
Priority date: 2012-06-08
Filing date: 2012-06-08
Publication date: 2013-01-16
Anticipated expiration: 2022-06-08

Abstract

The utility model discloses a water inlet valve. A water sealing piston and an eccentric shaft are installed in the water inlet pipe and the water inlet cavity of the top cover and are located below the water stop pad. The water sealing piston is driven by the eccentric shaft to open and close the water inlet hole; The external water storage tank is fixed, the top of the upper water storage chamber is open, and the lower water chamber has an upper vent and a lower water inlet. A siphon tube and a float are installed in the water storage chamber. ;A small buoy is installed outside the water storage tank, and a switch plate is provided on the small buoy to switch the upper vent with the small buoy lifting; a water diversion groove is formed on the periphery of the top cover to face the water storage cavity; A connecting rod, a lever and a latch are installed, the connecting rod is connected to the lever and the eccentric shaft, an energy storage spring is arranged on the connecting rod or the lever, a latch is inserted at the other end of the lever, and a second magnetic element and a return spring are installed on the latch. The utility model is convenient to stop water inflow in time when the accessories of the water tank and the water tank fail, and reduces the waste of water resources.

Description

A kind of water intaking valve

Technical field

The utility model relates to a kind of water intaking valve, refers in particular to a kind ofly can fast water or little leak and water intaking valve stops water intaking valve into water when can't sealing causing always the cistern fittings fault such as spilling water and radiator leak occur in that draining valve is stuck.

Background technology

In the prior art, it is by water inlet pipe that a kind of water intaking valve is arranged, top cover, waterstop pad, the back pressure pad, swing arm and floating drum form, the lower end of water inlet pipe is installed on the feed pipe of water tank, top cover is installed in the upper end of water inlet pipe and the inside of top cover and water inlet pipe forms intake antrum, form the sealing face with inlet opening in the intake antrum, corresponding inlet opening installation waterstop pad is positioned on the sealing face in the intake antrum, offer back pressure hole on the top cover, the stage casing of swing arm is hubbed on the top cover, one of swing arm is rectified back pressure hole and the back pressure pad is installed, the other end of swing arm is connected with the adjusting rod of floating drum, is provided with the seal that guarantees watertightness between each member.During use, when cistern water level descends, floating drum gravitate and thereupon descending, drive swing arm deflection, make the back pressure pad open back pressure hole, water enters the water tank from flow through water inlet pipe, inlet opening, top cover and back pressure hole of feed pipe, realize water inlet, after cistern water level rose, floating drum was subjected to buoyancy and rises thereupon, drove swing arm deflection, make the back pressure pad again close back pressure hole, water can't enter from the back pressure hole of top cover the water tank, and waterstop pad produces back pressure and is out of shape the inlet opening that seals on the sealing face, realizes stopping into water.

But, cistern fittings (water intaking valve, draining valve, button and other attached seal etc.) breaks down in use for some time easily, such as: being not closed completely and slowly leak (little leaking) can appear in draining valve, draining valve Parts Breakdown or button fault can't be closed and always draining (fast water), perhaps water intaking valve can't stop into water and always water inlet, finally cause excessive water inlet to be discharged by Radiator overflow hose, above situation all directly causes water resource waste.

For this reason, the inventor improves the structure of water intaking valve, in order in time stop water intake valve when above-mentioned situation occurring, this case produces thus.

The utility model content

The purpose of this utility model is to provide a kind of water intaking valve, in order to leaking or in time stopping into water in the spilling water situation for a long time, reduce water resource waste.

In order to reach above-mentioned purpose, solution of the present utility model is:

A kind of water intaking valve comprises water inlet pipe, top cover, waterstop pad, back pressure pad, swing arm and floating drum and forms; In the inner intake antrum that forms of water inlet pipe and top cover, be positioned at waterstop pad below water shutoff piston and eccentric shaft also are installed, one end of eccentric shaft interts on the water shutoff piston and the other end is sealed shape and stretches out outside the intake antrum, and the water shutoff piston is driven the inlet opening that moves up and down vertically and seal or open the sealing face by eccentric shaft; Outside at water inlet pipe also fixedly mounts water storage cylinder, the top of water storage cylinder is storage chamber and the bottom is lower water cavity, the open top of storage chamber, lower water cavity has upper vent and lower water inlet, syphon is installed in the storage chamber, a siphonal end is pressed close at the bottom of the chamber of storage chamber and the other end is communicated with lower water cavity at the bottom of passing the chamber of storage chamber, also puts into float in the storage chamber, and the first magnetic element is installed at the top of float; Keg buoy is installed in liftable mode in outside in water storage cylinder, and the upper vent of corresponding lower water cavity has switchboard and can rise to open upper vent and descend with keg buoy with keg buoy and close upper vent on the keg buoy; Periphery at top cover also forms gutter, and the water dropping openings of gutter is over against storage chamber; Go back installing connecting rods, lever and latch in the outside of water inlet pipe and top cover, one end of connecting rod is connected on the end of lever and the other end is fixed on the other end of eccentric shaft, connecting rod or lever are provided with energy-stored spring, but the other end of lever is provided with latch with pluggable mode, and corresponding the first magnetic element is installed control latch the second magnetic element of extracting and the back-moving spring that makes latch reset and insert on the latch.

Be provided with sealing ring between the perforate of described eccentric shaft and intake antrum; The top of water shutoff piston is provided with sealing mat.

The control water droplet is housed through the sponge of speed in the described gutter.

Inner convex platform is formed on the top of described water inlet pipe, and the water shutoff spring is installed on the inner convex platform, and the upper end of water shutoff spring is against the below of water shutoff piston and the lower end of water shutoff spring is against on the inner convex platform.

The sidewall profile of described water storage cylinder becomes chute, upper vent is arranged in chute, keg buoy has upper counterweight chamber and lower buoyancy cavity, upper counterweight chamber is slidingly arranged in the chute of water storage cylinder, connected entrance is offered in the lateral wall below in upper counterweight chamber, and the corresponding upper vent in inside wall top in upper counterweight chamber forms switchboard, and switchboard up-draught mouth tilts, the below of switchboard forms leakage port, and lower buoyancy cavity is positioned at the below of water storage cylinder.

One end of described lever forms shift fork, short and the interior length of side in the outside of shift fork, connecting rod is comprised of first connecting rod and second connecting rod, one end of first connecting rod is plugged in the shift fork and the other end is articulated on the end of second connecting rod, the other end of second connecting rod is fixed on the other end of eccentric shaft, also extend to form elevating lever on the first connecting rod, elevating lever is arranged in the outside lifting groove that forms of top cover, and energy-stored spring is placed in the lifting groove and is against on the elevating lever.

The inner edge of described shift fork also forms and is beneficial to the inclined thrust surface of stirring first connecting rod.

Also form on described connecting rod or the torque-transmitting axle and be convenient to stir the shifting block that connecting rod and lever reset.

Form domatic that the guiding latch inserts on the other end of described lever or the latch.

The other protruding grain that also is provided with restriction lever rotational angle of the rotating shaft of described lever.

After adopting said structure, the utility model is the architecture advances to water intaking valve.

Water intaking valve after the improvement is installed in the water tank, under the original state, latch is plugged on lever under action of reset spring a end makes the lever location, connecting rod is also located simultaneously, connecting rod drives the eccentric shaft rotational positioning, eccentric shaft drives the water shutoff piston and descends and the inlet opening of unlatching sealing face, at this moment the energy-stored spring stored energy.

When fault-free is normally used, initial water inlet, floating drum drives swing arm and deflects down, make the back pressure pad open back pressure hole, water enters the water tank from flow through water inlet pipe, inlet opening, top cover and back pressure hole of feed pipe, realize water inlet, part water is formed in the storage chamber that water droplet enters water storage cylinder through water dropping openings by the gutter directed stream simultaneously, and Water in Water Tanks position water in uphill process also enters in the lower water cavity of water storage cylinder; When cistern water level rose to predetermined sealing waterline, floating drum drove swing arm and upward deflects, and makes the back pressure pad again close back pressure hole, and waterstop pad produces back pressure and blocks the inlet opening of sealing face, realizes stopping into water.

When draining valve is washed by water, the lower water cavity water level of cistern water level and water storage cylinder descends, the gravity of being down to keg buoy when water level is during greater than buoyancy, keg buoy falls and drives the upper vent that switchboard is closed water cavity under the water storage cylinder, the lower water cavity water level of water storage cylinder continues slow decreasing makes formation negative pressure in the lower water cavity, when negative pressure acquires a certain degree, by syphon the water in the storage chamber of water storage cylinder is sucked in the lower water cavity, until being blotted siphon, the water in the storage chamber interrupts, the lower water cavity water level of cistern water level and water storage cylinder continues to descend, until finish bath; Simultaneously, when cistern water level drops to floating drum gravity greater than buoyancy, floating drum again drives swing arm and deflects down, make the back pressure pad open back pressure hole, the waterstop pad pressure release separates with the sealing face, opens the inlet opening of sealing face, restarts into water, and part water flows to storage chamber, afterwards along with the water level ascending water also enters in the lower water cavity; After cistern water level rose, floating drum drove swing arm and upward deflects, and makes the back pressure pad again close back pressure hole, and waterstop pad produces back pressure, blocked the inlet opening of sealing face, again stopped into water.

Fast water appears when draining valve parts or stuck can't the closing of button fault occurring, the water intaking valve unit failure can't sealing and long-time spilling water etc. fault occurred, during use, water intaking valve can be in into the water state always, part water is flow in the storage chamber of water storage cylinder by the gutter guiding, because water intaking valve is intake always, water level in the storage chamber constantly rises, the float that drives in the storage chamber rises thereupon, when the first magnetic element of float aligns with the second magnetic element of latch, be subjected to magneticaction that latch is extracted from lever and remove the location, the deflection under the energy-stored spring effect of lever and connecting rod, connecting rod drives eccentric shaft and rotates, and eccentric shaft drives the water shutoff piston and rises and the inlet opening of sealing sealing face, and water intaking valve is stopped into water.

Seepage appears when seepage or water tank and other parts sealing part appear in draining valve, when little leaking namely occurring, the counterweight water level of little keg float is relative consistent with the water level of water tank, little keg float can't produce counterweight, little keg float is in float state all the time, lower chamber and the atmosphere of water storage cylinder are connected all the time, its waterline is the relative negative pressure that unanimously do not produce with water tank also, the water of storage chamber is not by siphon, repeated multiple times sealing like this leak into again certain water level can repeat again the water inlet after, the water of storage chamber is constantly cumulative, water level in the storage chamber constantly rises, the float that drives in the storage chamber rises thereupon, when the first magnetic element of float aligns with the second magnetic element of latch, is subjected to magneticaction that latch is extracted from lever and removes the location, the deflection under the energy-stored spring effect of lever and connecting rod, connecting rod drives eccentric shaft and rotates, and eccentric shaft drives the water shutoff piston and rises and the inlet opening of sealing sealing face, and water intaking valve is stopped into water.

The utility model is because increased the water shutoff piston that is driven by eccentric shaft and controlled connecting rod, lever, latch, float, water storage cylinder and keg buoy of eccentric shaft rotation etc. at existing water intaking valve, so, water intaking valve not only can guarantee normal water inlet and water stopping function, more can be when the water tank member breaks down timely sealing, avoid leaking for a long time or long-time spilling water, reduce water resource waste.

Below in conjunction with drawings and the specific embodiments the utility model is done and to be described in further detail.

Description of drawings

Fig. 1 is schematic appearance of the present utility model;

Fig. 2 is the three-dimensional exploded view of the utility model latch part;

Fig. 3 is the matching relationship schematic diagram of the utility model latch, lever and connecting rod;

Fig. 4 is the matching relationship schematic diagram of the utility model latch and lever;

Fig. 5 is the structural representation of the utility model connecting rod and gutter;

Fig. 6 is the structure sectional view of the utility model water storage cylinder and keg buoy;

Fig. 7 is the three-dimensional exploded view of the utility model water storage cylinder and keg buoy;

Fig. 8 is the location diagram of the utility model water storage cylinder and keg buoy;

Fig. 9 is the structural representation in the utility model water storage cylinder;

The structure sectional view of water storage cylinder and keg buoy when Figure 10 is the utility model sealing state;

The structure sectional view of intake antrum when Figure 11 is the utility model sealing state;

The structure sectional view of intake antrum when Figure 12 is the utility model normal condition.

Label declaration:

Water inlet pipe 1 intake antrum 10 inner convex platforms 11

Water shutoff spring 12 waterstop pads 13 sealing faces 14

Inlet opening 15

Top cover 2 back pressure pads 21 back pressure hole 22

Swing arm 3 floating drums 31

Water shutoff piston 4 eccentric shafts 41 sealing rings 42

Sealing mat 43

51 times water cavities 52 of water storage cylinder 5 storage chambers

Upper vent 53 syphons 54 floats 55

The first magnetic element 56 chutes 57

Counterweight chamber 62 on keg buoy 6 switchboards 61

Lower buoyancy cavity 63 connected entrances 64 leakage ports 65

Gutter 7 water dropping openings 71 apertures 72

Connecting rod 8 energy-stored springs 80 first connecting rods 81

Second connecting rod 82 elevating levers 83 lifting grooves 84

Energy-stored spring 85 shifting blocks 86

Lever 9 latches 91 second magnetic elements 92

Back-moving spring 93 shift forks 94 outsides 941

Inner edge 942 inclined thrust surfaces 943 domatic 95

Protruding grain 96.

The specific embodiment

Such as Fig. 1 and shown in Figure 12, be a kind of water intaking valve that the utility model discloses, comprise water inlet pipe 1, top cover 2, waterstop pad 13, back pressure pad 21, swing arm 3 and floating drum 31 and form, this is the basic structure of existing water intaking valve.The lower end of water inlet pipe 1 is installed on the feed pipe of water tank, top cover 2 is installed in the upper end of water inlet pipe 1, top cover 2 forms intake antrum 10 with the inside of water inlet pipe 1, form the sealing face 14 with inlet opening 15 in the intake antrum, corresponding inlet opening 15 installation waterstop pads 13 are positioned on the sealing face 14 in the intake antrum, offer back pressure hole 22 on the top cover 2, the stage casing of swing arm 3 is hubbed on the top cover 2, one of swing arm 3 is rectified back pressure hole 22 and back pressure pad 21 is installed, the other end of swing arm 3 is connected with the adjusting rod of floating drum 31, is provided with the seal that guarantees watertightness between each member.In the use, when cistern water level descends, floating drum 31 gravitates descend, drive swing arm 3 deflections, back pressure pad 21 is opened back pressure hole 22, water enters the water tank from flow through water inlet pipe 1, inlet opening 15, top cover 2 and back pressure hole 22 of feed pipe, realize water inlet, after cistern water level rose, floating drum 31 was risen by buoyancy, drove swing arm 3 deflections, make back pressure pad 21 close back pressure hole 22, water can't enter the water tank from the back pressure hole 22 of top cover 2, and waterstop pad 13 produces back pressure and is out of shape the inlet opening 15 that seals on the sealing face 14, realizes stopping into water.

Improvement of the present utility model is:

Such as Figure 11 and shown in Figure 12, in water inlet pipe 1 and the top cover 2 inner intake antrums 10 that form, the below that water shutoff piston 4 and eccentric shaft 41 are positioned at waterstop pad 13 is installed also.One end of eccentric shaft 41 interts on water shutoff piston 4 and the other end is sealed shape stretches out outside the intake antrum 10, so-called sealed shape is to point out to be sealed shape between the perforate of eccentric shaft 41 and intake antrum 10, is to be provided with sealing ring 42 between the perforate of eccentric shaft 41 and intake antrum 41 such as present embodiment.Water shutoff piston 4 is driven by eccentric shaft 41 and moves up and down vertically and seal the inlet opening 15 on the sealing face 14 or open inlet opening 15 on the sealing face 14.Wherein, water shutoff piston 4 can directly drive sealing inlet opening 15 by eccentric shaft 41, water shutoff piston 4 also can drive sealing inlet opening 15 by eccentric shaft 41 as shown in this embodiment indirectly, be that eccentric shaft 41 rotates to move upward to provide to water shutoff piston 4 and allows bit space, upwards seal inlet opening 15 and promote water shutoff piston 4 by Water Pressure, water shutoff piston 4 can also drive sealing inlet opening 15 with other similar fashion by eccentric shaft 41, and this paper is particularize not.In order to make stagnant water effect better, present embodiment further is provided with sealing mat 43 above water shutoff piston 4, perhaps further also form inner convex platform 11 at the top of water inlet pipe 1, water shutoff spring 12 is installed on the inner convex platform 11, and the upper end of water shutoff spring 12 is against the below of water shutoff piston 4 and the lower end of water shutoff spring 12 is against on the inner convex platform 11.During 41 deflection of present embodiment eccentric shaft, as shown in figure 12, under normal condition, eccentric shaft 41 cooperates with water shutoff piston 4 with major diameter, water shutoff piston 4 descends, and compression water shutoff spring 12, and the inlet opening 15 on the unlatching sealing face 14, as shown in figure 11, under the sealing state, eccentric shaft 41 cooperates with water shutoff piston 4 with minor axis, and water shutoff piston 4 is risen by 12 effects of water shutoff spring, and the inlet opening 15 on the sealing sealing face 14.

To shown in Figure 10, also fixedly mount water storage cylinder 5 in the outside of water inlet pipe 1 such as Fig. 6.The top of water storage cylinder 5 is storage chamber 51, the open top of storage chamber 51.And the bottom of water storage cylinder 5 is lower water cavity 52, and lower water cavity 52 has upper vent 53 and lower water inlet (present embodiment is that directly formation is uncovered).Syphon 54 is installed in the storage chamber 51, and an end of syphon 54 is pressed close at the bottom of the chamber of storage chamber 51 and the other end is communicated with lower water cavity 51 at the bottom of passing the chamber of storage chamber 51.Also put into float 55 in the storage chamber 51, the first magnetic element 56 is installed at the top of float 55.

Extremely shown in Figure 9 such as Fig. 2, keg buoy 6 is installed in liftable mode in outside in water storage cylinder 5, the upper vent 53 of corresponding lower water cavity 52 has switchboard 61(Fig. 6 to Fig. 9 on the keg buoy 6), along with keg buoy 6 rises, switchboard 61 can be opened upper vent 53, along with keg buoy 6 descends, switchboard 61 can be closed upper vent 53.This embodiment specifically becomes chute 57 in the sidewall profile of water storage cylinder 5, upper vent 53 is arranged in chute 57, keg buoy 6 has upper counterweight chamber 62 and lower buoyancy cavity 63, upper counterweight chamber 62 is slidingly arranged in and makes the keg buoy 6 can lifting in the chute 57, connected entrance 64 is offered in the lateral wall below in upper counterweight chamber 62, the corresponding upper vent 53 in the inside wall top in upper counterweight chamber 62 forms switchboard 61, close better upper vent 53 in order to make switchboard 61, it is skewed that switchboard 61 designs are up-draught mouth 53 directions, in order to open better upper vent 53, then form leakage port 65 below switchboard 61, lower buoyancy cavity 63 is positioned at the below of water storage cylinder 5.Certainly, keg buoy 6 can also be other concrete structures, as long as can realize the unlatching and sealing of upper vent 53 when water level rises or descend.Be arranged in the below of water storage cylinder such as keg buoy, the upper counterweight chamber that can save present embodiment can drive equally switchboard and cooperate with upper vent and realize opening or closing.

Such as Fig. 5 and shown in Figure 9, also form gutter 7 at the periphery of top cover 2, the water dropping openings 71 of gutter 7 is over against the storage chamber 51 of water storage cylinder 5, and gutter 7 specifically can be introduced water by aperture 72.In order to control water droplet through speed, the sponge of can also in gutter 7, packing into.

To shown in Figure 10, go back installing connecting rods 8, lever 9 and latch 91 in the outside of water inlet pipe 1 and top cover 2 such as Fig. 1.One end of connecting rod 8 is connected on the end of lever 9 and the other end is fixed on the other end of eccentric shaft 41, connecting rod 8 or lever 9 are provided with energy-stored spring 80, but the other end of lever 9 is provided with latch 91 with pluggable mode, on the latch 91 corresponding the first magnetic element 56 install the second magnetic element 92(the first magnetic elements 56 and the second magnetic element 92 be can magnetic absorption element, can two all adopt magnet, perhaps one for magnet another is can be by ironware of magnet adsorption etc.), the second magnetic element 92 cooperates with the first magnetic element 56 can be controlled latch 91 and extract from lever 9 and remove location to lever 9, back-moving spring 93 also is installed on the latch 91, latch 91 is resetted again be inserted in by back-moving spring 93 to make lever 9 location on the lever 9.For transmission effect balance more, smooth and easy, present embodiment forms shift fork 94 at an end of lever 9, lack and inner edge 942 length the outside 941 of shift fork 94, connecting rod 8 is comprised of first connecting rod 81 and second connecting rod 82, one end of first connecting rod 81 is plugged in the shift fork 94 and the other end is articulated on the end of second connecting rod 82, the inner edge 942 of shift fork 94 further also forms and is beneficial to the inclined thrust surface 943 of stirring first connecting rod 81, the other end of second connecting rod 82 is fixed on the other end of eccentric shaft 41, also extend to form elevating lever 83 on the first connecting rod 81, elevating lever 83 is arranged in the top cover 2 outside lifting grooves 84 that form, and energy-stored spring 85 is placed in the lifting groove 84 and is against on the elevating lever 83.Wherein, the outside 941 of shift fork is designed to such an extent that weak point is in order to make things convenient for first connecting rod 81 shifting levers 9 and not to be subjected to shift fork 94 restriction can guarantee enough strokes of first connecting rod 81, and inner edge 942 designs to such an extent that length is to reset in order to make things convenient for after the trouble shooting first connecting rod 91 can promote like a cork lever 9.Also form on second connecting rod 82 or the torque-transmitting axle 41 and be convenient to stir the shifting block 86 that connecting rod 8 and lever 9 reset.The upper formation of the other end of lever 9 (or latch 91) guided domatic 95 of latch 91 insertions.The other protruding grain 96 that also is provided with restriction lever 9 rotational angles of the rotating shaft of lever 9.

The utility model is installed in the water tank, under the original state, extremely shown in Figure 9 such as Fig. 2, latch 91 is plugged on lever 9 under back-moving spring 93 effects a end makes lever 9 location, connecting rod 8 is also located simultaneously, and connecting rod 8 drives eccentric shaft 41 rotational positioning, as shown in figure 12, eccentric shaft 41 drives 4 declines of water shutoff piston and opens inlet opening 15, at this moment energy-stored spring 80 stored energies.

When fault-free is normally used, initial water inlet, floating drum 31 gravitates and thereupon descending, drive swing arm 3 deflections, make back pressure pad 21 open back pressure hole 22, water enters the water tank from flow through water inlet pipe 1, inlet opening 15, top cover 2 and back pressure hole 22 of feed pipe, realize water inlet, part water forms water droplet by gutter 7 directed stream through water dropping openings 71 simultaneously, splash into again in the storage chamber 51 of water storage cylinder 5, after cistern water level raise, water also entered in the lower water cavity 52 of water storage cylinder 5, and water is also entered in the upper counterweight chamber 62 of keg buoy 6 by connected entrance 64 in the present embodiment; After cistern water level rose, floating drum 31 was subjected to buoyancy and rises thereupon, drove swing arm 3 deflections, make back pressure pad 21 again close back pressure hole 22, water can't enter the water tank from back pressure hole 22, and waterstop pad 13 produces back pressures and blocks the inlet opening 15 of sealing face 14, realizes sealing.

When draining valve is washed by water, lower water cavity 52 water levels of cistern water level and water storage cylinder 5 descend, upper counterweight chamber 62 water levels of keg buoy 6 also fall on slowly in the present embodiment, the gravity of being down to keg buoy 6 when water level is during greater than buoyancy, keg buoy 6 falls rapidly and drives switchboard 61 to descending upper vent 53 of closing lower water cavity 52, the water level of lower water cavity 52 continues slow decreasing makes lower water cavity 52 interior formation negative pressure, when negative pressure acquires a certain degree, by syphon 54 water in the storage chamber 51 is sucked in the lower water cavity 52, until being blotted siphon, the water in the storage chamber 51 interrupts, cistern water level and lower water cavity 52 water levels continue to descend, until finish bath; Simultaneously, when cistern water level drops to floating drum 31 gravity greater than buoyancy, floating drum 31 drives swing arm 3 deflections again, make back pressure pad 21 open back pressure hole 22, waterstop pad 13 pressure releases separate with sealing face 14, open inlet opening 15, again realize water inlet, part water is flow in the storage chamber 51 by guiding gutter 7 guidings simultaneously, and water also enters in lower water cavity 52 and the upper counterweight chamber 62; After the cistern water level rising put in place, floating drum 31 drove swing arms 3 deflections, and back pressure pad 21 is closed back pressure hole 22 again, and waterstop pad 13 produces back pressures, blocks inlet opening 15, realizes sealing.

When draining valve parts or stuck can't the closing of button fault and fast water occurs, perhaps the water intaking valve unit failure can't sealing and long-time spilling water occurred, perhaps the water tank inner member occur other etc. fault cause when leaking, water intaking valve can be in into the water state always, part water is still flow in the storage chamber 51 by gutter 7 guidings, because water intaking valve is intake always, water level in the storage chamber 51 constantly rises, the float 55 that drives in the storage chamber 51 rises thereupon, when the first magnetic element 56 of float 55 aligns with the second magnetic element 92 of latch 91, as shown in figure 10, be subjected to magneticaction that latch 91 is extracted the location of removing lever 9 from lever 9, latch 91 compression reseting springs 93, lever 9 and connecting rod 8 under energy-stored spring 80 effect deflection (this embodiment pushes away elevating lever 83 downwards by energy-stored spring 80, make first connecting rod 81 descending, first connecting rod 81 cooperates 9 deflections of drive lever with shift fork 94, first connecting rod 81 also drives second connecting rod 82 deflections), this embodiment of connecting rod 8(is second connecting rod 82 specifically) 41 rotations of drive eccentric shaft, as shown in figure 11, eccentric shaft 41 rotates the bit space that allows that forms for 4 risings of water shutoff piston, water shutoff piston 4 is subject to the effect of hydraulic pressure and rises and sealing inlet opening 15, makes the water intaking valve sealing.

Seepage appears when seepage or water tank and other parts sealing part appear in draining valve, when little leaking namely occurring, the counterweight water level of little keg float 6 is relative consistent with the water level of water tank, little keg float 6 can't produce counterweight and be in all the time float state, the lower chamber 52 of water storage cylinder 5 is connected all the time with atmosphere and the also relative negative pressure that unanimously do not produce with water tank of its waterline, the water of storage chamber 51 is not by siphon, so repeated multiple times, the elder generation sealing leak into again certain water level can repeat again the water inlet after, the water of storage chamber 51 is constantly cumulative, water level in the storage chamber 51 constantly rises, the float 55 that drives in the storage chamber 51 rises thereupon, when the first magnetic element 56 of float 55 aligns with the second magnetic element 92 of latch 91, be subjected to magneticaction that latch 91 is extracted from lever 9 and remove the location, the deflection under energy-stored spring 80 effects of lever 9 and connecting rod 8, connecting rod 8 drives eccentric shaft 41 and rotates, eccentric shaft 41 drives water shutoff piston 4 and rises and sealing inlet opening 15, and water intaking valve is stopped into water.

After the water tank internal fault solves, overcome the magnetic force of the first magnetic element 56 and the second magnetic element 2, float 55 is taken off from latch 91, stir shifting block 86 again, first connecting rod 81, second connecting rod 82 and lever 9 are resetted, energy-stored spring 80 is stored energy again, eccentric shaft 41 also resets, drive water shutoff piston 4 descending unlatching inlet openings 15, water intaking valve recovers normal condition, and is extremely shown in Figure 9 such as Fig. 2.

Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present utility model to its suitable variation or modification of doing.

Claims

1. A water inlet valve, comprising a water inlet pipe, a top cover, a water-stop pad, a back pressure pad, a swing arm and a buoy; it is characterized in that: the water-stop pad is located in the water inlet cavity formed inside the water inlet pipe and the top cover The water sealing piston and eccentric shaft are also installed under the eccentric shaft. One end of the eccentric shaft is inserted on the water sealing piston and the other end protrudes out of the water inlet chamber in a closed shape. The water sealing piston is driven by the eccentric shaft to move up and down in the axial direction to close or open. The water inlet hole on the water stop surface; a water storage cylinder is also fixedly installed outside the water inlet pipe. The upper part of the water storage cylinder is a water storage chamber and the lower part is a water chamber. The top of the water storage chamber is open, and the water chamber has an upper vent and a lower water inlet. A siphon tube is installed in the water storage chamber, one end of the siphon tube is close to the bottom of the water storage chamber and the other end passes through the bottom of the water storage chamber to communicate with the lower water chamber, a float is also placed in the water storage chamber, and a first magnetic magnet is installed on the top of the float Components; a small buoy is installed outside the water storage tank in a liftable manner, and the upper vent corresponding to the lower water chamber on the small buoy has a switch plate that can open or close the upper vent with the small buoy lifting; a guide is also formed on the periphery of the top cover The water tank, the drip opening of the water guide tank is facing the water storage chamber; a connecting rod, a lever and a latch are installed outside the water inlet pipe and the top cover, and one end of the connecting rod is connected to one end of the lever and the other end is fixed on the other end of the eccentric shaft On the connecting rod or lever, there is an energy storage spring, and the other end of the lever is provided with a pin in a pluggable manner, and the second magnetic element that controls the pull-out of the pin is installed on the pin corresponding to the first magnetic element, and the reset that makes the pin reset and insert spring.

2. A water inlet valve according to claim 1, characterized in that: a sealing ring is provided between the eccentric shaft and the opening of the water inlet chamber; a sealing gasket is provided above the water sealing piston.

3. A water inlet valve according to claim 1, characterized in that: said water guide groove is equipped with a sponge for controlling the passing speed of water droplets.

4. A water inlet valve according to claim 1, characterized in that: the top of the water inlet pipe forms an inner boss, and a water sealing spring is installed on the inner boss, and the upper end of the water sealing spring is against the bottom of the water sealing piston. Below, the lower end of the water sealing spring is against the inner boss.

5. A water inlet valve as claimed in claim 1, characterized in that: a chute is formed outside the side wall of the water storage cylinder, the upper air vent is located in the chute, and the small buoy has an upper counterweight chamber and a lower buoyancy chamber , the upper counterweight cavity is slidably arranged in the chute of the water storage tank, a communication port is opened below the outer side wall of the upper counterweight cavity, and a switch plate is formed corresponding to the upper ventilating port above the inner side wall of the upper counterweight cavity, and the switch plate is inclined upward to the ventilating port, The air vent is formed under the switch plate, and the lower buoyancy chamber is located under the water storage cylinder.

6. A water inlet valve according to claim 1, wherein one end of the lever forms a shift fork, the outer side of the shift fork is short and the inner side is long, and the connecting rod is composed of a first connecting rod and a second connecting rod Composition, one end of the first connecting rod is inserted in the shift fork and the other end is pivotally connected to one end of the second connecting rod, the other end of the second connecting rod is fixed on the other end of the eccentric shaft, and the first connecting rod is also Extended to form a lifting rod, the lifting rod is arranged in the lifting groove formed outside the top cover, and the energy storage spring is placed in the lifting groove and abuts on the lifting rod.

7. The water inlet valve according to claim 6, characterized in that: the inner side of the shift fork also forms an oblique push surface which facilitates the movement of the first connecting rod.

8. A water inlet valve as claimed in claim 1, characterized in that: said connecting rod or eccentric shaft is also formed with a shifting block which facilitates the resetting of the connecting rod and the lever.

9. The water inlet valve according to claim 1, characterized in that: the other end of the lever or the bolt is formed with a slope for guiding the insertion of the bolt.

10 . The water inlet valve according to claim 1 , characterized in that: a bump is provided beside the rotating shaft of the lever to limit the rotation angle of the lever. 11 .