KR101200834B1 - Automatic flushing device for toilet which is actuated by the difference in supplemental in-out flow - Google Patents

Abstract

PURPOSE: An automatic flushing device of a toilet bowl actuated by a difference of supplement water flowing inward and outward is provided to open and close a flush valve using the inner pressure change of a hydraulic chamber. CONSTITUTION: An automatic flushing device(30) of a toilet bowl actuated by a difference of supplement water flowing inward and outward comprises a hydraulic chamber(33), a supplement water inlet(35), a flexible packing(34), a hydraulic operating link(31), and a first supplement water outlet(36). The supplement water inlet is formed in the hydraulic chamber. The flexible packing forms a part of the surface of the hydraulic chamber. The hydraulic operating link opens a flush valve of a toilet bowl. The first supplement water outlet is formed in the hydraulic chamber and has a smaller cross section than the supplement water inlet. [Reference numerals] (30) Automatic flushing device(31-39)

Description

Automatic flushing device for toilet which is actuated by the difference in supplemental in-out flow}

The present invention relates to an automatic flushing device using water pressure widely used in various toilets and bidet apparatus, and specifically, by using the internal pressure change of the pressure chamber according to the low water level change of the water tank in the toilet where the high pressure water is supplied. It relates to a device for opening and closing the flush valve.

Automatic flushing device, which can add convenience and increase water saving effect to the elderly and children's toilet, can be linked with the bidet water supply device.In recent years, water pressure can be used instead of the electric motor to reduce the manufacturing cost and reduce the failure rate. The use of actuators or pneumatic actuators is the mainstream.

Document (1) introduced below shows the most basic form of the automatic flushing device using water pressure, which is configured to deliver the supplementary water supplied from the water supply pipe to the push rod and open the flush valve by the operation of the rotary arm connected to the push rod. will be.

Literature (2) is an improvement of Literature (1), which has a discharge hole through which the hydraulic pressure of the replenishing water is released so that the cylinder rod can be raised by the hydraulic pressure of the replenishing water to open the flush valve, and then close automatically again at an appropriate time. The cylinder rod return structure by the weight was added.

Literature (3) is a further improvement of literature (2), and applies a coil spring for forced return instead of a weight that helps the cylinder rod's natural lowering action in order to make the cylinder rod return time faster.

Literature (4) uses the seating load of the toilet user as a pneumatic power source to drive the channel control device and thereby adjust the water pressure in the supply channel connected to the cylinder rod.

Although the technical documents have slight differences in the detailed configuration, they are all limited to a mechanical driving device (hydraulic actuator) using hydraulic pressure, that is, the basic principle of generating only one direction of driving force using hydraulic pressure is the same.

(1) Automatic flushing device for toilet bowl (2) Automatic flushing device of the toilet using water pressure (3) Cylinder structure of automatic water dispensing device that can operate at low water pressure (4) a non-powered automatic flushing device and method of the toilet bowl

The prior art introduced uses the hydraulic energy of the supplied high pressure water only for a simple drive that pushes the hydraulic piston in one direction, and cannot perform a complex drive beyond this.

For example, to open the flush valve in two stages to separate urine and feces, it is necessary to adjust the stroke amount and the time of return of the hydraulic piston. However, the time when the high pressure water acts on the hydraulic piston is extremely short, and it is extremely difficult to control the stroke of the piston by controlling the working time while keeping the magnitude of the hydraulic pressure intact.

In addition, the prior art uses only temporarily pressurized water only to drain the water already stored in the water tank, there is no technical explanation for supplying the replenishment water to the water tank, or mainly used in the past (ball ball) tap) The configuration is used as it is. In this case, in addition to the existing ball tap and flush valve configuration, the water tank of the toilet should be installed with an additional automatic flushing device to operate the flush valve. Therefore, the manufacturing cost of the entire toilet is increased, and the toilet with the small tank is installed. In this case, there is a possibility that the waste discharge capacity will be weakened due to the decrease of the reservoir.

The present invention was devised to overcome the drawbacks of the prior art as described above, and it was difficult to control the amount of water drop by separating the urine from the conventional automatic flushing devices supplied to the water tank. It was also difficult to perform, and all the disadvantages that were difficult to return quickly after opening the flush valve were improved.

In order to achieve the above technical goal, the present invention has been implemented based on the following several important technical ideas.

The most important technical means is in the structure of the hydraulic pressure chamber 33 to which hydraulic pressure is applied. In the present invention, the pressure chamber is composed of a state in which the opening is gradually progressed in addition to the incomplete normal open state or the flush valve operation (with the lowering of the tank level) instead of the closed state, and in addition, the inflow amount of the replenishing water in the water tank full water level state. It is designed to slightly exceed this runoff.

In other words, the replenishment water flowing into the hydraulic pressure chamber 33 is in a state in which at least one outlet 36 or 37 is immediately discharged.

Some of the automatic water dispensing devices in the prior art have a discharge hole in which the pressure water is discharged, but it is a check valve type that opens only during the return of the hydraulic piston or a pure pressure relief discharge hole that discharges only a very small flow rate. As a result, supplementary water cannot be supplied to the water tank.

However, in the present invention, the make-up water outlets 36 and 37 are formed with a large pipe cross-section area (smaller cross-sectional area than the make-up water inlet 35) which is incomparable with the minute discharge holes of the prior art, and is substantially a one-way check valve. It is always open, not the way. That is, by the replenishment water outlet large enough to fill the replenishment water in the water tank within a suitable time, the present invention will completely omit the typical replenishment water supply configuration (see Fig. 1) by the ball tap and float, which had to be inevitably mounted in the past. There is a number.

On the other hand, the additional technical means for assisting the core means (hydraulic chamber) is composed of a wide pressure-responsive elastic motion surface of the hydraulic chamber 33 by using a flexible packing 34, the surface is in the state of full tank water level It was exposed in the middle. Due to this, the replenishment water flowing in may serve as a temporary but substantially driving hydraulic piston in the wide elastic surface formed by the flexible packing until the hydraulic chamber is fully inflated.

As supplementary technical means for further completing the additional technical means, the supplementary water inlets 36 and 37, and the effluent amount adjusting device 38 and the height adjusting intentionally adjusting the pressure equilibrium state in which the flexible packing 34 is placed. There is a type fastener 39.

When properly combined with the water height of the water tank, the movement of the hydraulic actuating link 31 can be intentionally adjusted. The first thing to consider is the water tank level. The flexible packing 34, which is an elastic surface of the pressure chamber, is always exposed to the outside in the air, the first supplemental water outlet 36 is slightly submerged in water, and the second supplementary water outlet 37 is deeply submerged in water. That is, in the high water level, the flexible packing has the lowest pressure resistance, followed by the first supplementary water inlet, and then the second supplementary water inlet.

On the other hand, the second supplementary water outlet 37 is the same or larger than the first supplementary water outlet 36 but is set to a lower outlet water level, so that the first supplementary water outlet exposed to the air even when the water level drops only slightly in the full water level state. The pipeline resistance of is significantly lower than the pipeline resistance of the second supplementary water outlet. Therefore, the supplementary water introduced into the pressure chamber at the beginning of operation is partially discharged through the first supplementary water outlet 36 submerged in water, and then the expansion of the flexible packing 34 proceeds and the first tank exposed to the air as the tank level is lowered. Rapidly discharged to the make-up water outlet (36). At this point in time when the discharge increases, the pressure rise of the hydraulic pressure chamber 33 is rapidly slowed down, so the expansion speed of the flexible packing 34 is also drastically slowed down and may be set to substantially stop the expansion and contract slightly by the spring 32.

Then, when the make-up water is cut off by the electronic control valve 20 for a while (= urine mode operation), the pressure in the hydraulic chamber is drastically reduced while the flush valve 12 is opened and floated in water for a short time. 34) within a short time. At this point, when the replenishment water is supplied again, the flush valve 12 is closed again without re-expanding the flexible packing 34 until the water tank reaches full water level again, and the first and second replenishment water outlets are closed again. The replenishment water flowing in can be pulled out sufficiently towards the water tank, so the half tank water level can be refilled. As a result, the tank reservoir at full level is not exhausted and the flush valve can be closed again.

In the state where the supplementary water stop control (urine mode control) by the electronic control valve 20 as described above is not involved, the flexible packing 34 does not rapidly contract and contracts for a longer time, and eventually the flush valve ( 12 is closed while maintaining a wide open state until the water reservoir 10 is completely empty. In this process, the hydraulic pressure chamber 33 is completely exposed to the air, so that the replenishment water can be easily discharged immediately after the inflow, and the replenishment water sprayed through the second refill water outlet is flushed rather than the buoyancy acting on the flush valve 12. Since the force pushing the valve is strong, the substantially flexible flexible packing 34 can complete the replenishment water supply without expanding again.

In the automatic flushing device 30 according to the present invention, when the flush valve 12 is opened and drainage proceeds, the outflow path resistance of the outlets 36 and 37 and the pressure of the pressure receiving chamber 33 are reduced. The effect is to gradually decrease. Therefore, after the start of drainage, the supplementary water supply may be stopped for a few seconds and then resumed. In this case, the opposite operation of the shrinkage return of the flexible packing 34 and the continuous supply of the supplementary water may be simultaneously performed.

Therefore, even in a toilet equipped with a single on-off control valve, such as a solenoid valve, and without any additional control, it depends only on the pressure change in the pressure chamber, and the flushing of feces and the flushing of urine at the same time. All three operations can be implemented.

In addition, the present invention minimizes the sliding portion by a strong and flexible flexible packing 34 having a wide elastic surface and a small expansion height, has excellent sealing force, it is possible to directly supply a large amount of high-pressure water and omit the ball tap and float There is this.

In addition, the hydraulic pressure chamber 33 of the present invention device is installed in the factory after the initial setting of the hydraulic actuating link 31 by the elastic adjustment of the spring and packing in the installation step even after the outflow amount adjuster 38 and height adjustment type The fastener 39 makes it easy to finely adjust the pressure filling, the pressure release rate and the hydraulic operation link of the hydraulic chamber, even if the supply water pressure varies slightly depending on the installation location, and the operation reliability is very excellent.

1 is a cross-sectional view of a conventional toilet water tank showing a manual flush valve opening and closing device
2 is a cross-sectional view of the toilet water tank equipped with the automatic flushing device of the present invention;
Figure 3 is an enlarged cross-sectional view showing a detailed configuration of the automatic water dispensing device of the present invention
Figure 4 is a cross-sectional view showing the state of use of the flush valve and the water tank level according to the operation of the automatic flushing device of the present invention

With reference to the embodiment of the present invention included in the drawings in order to technically support the above-described solution of the present invention will be described in detail.

However, in the following specific embodiments, the constituent elements including the specific terminology and the combination structure thereof do not limit the technical ideas encompassed in the present invention.

First, Figure 1 is a cross-sectional view of a conventional toilet water tank showing a manual flush valve opening and closing device is not directly related to the present invention is to contrast with the configuration of the present invention will be described later.

Referring to Figure 1, the ball tap (16 = device for opening and closing the high pressure supplemental water valve by opening and closing the pressure water valve using a change in the tank water level) and the float (17 = buoyancy body) configuration is locked in the water tank, Since the animal lowering device had to install a separate automatic lowering device in the water while leaving the ball tap and float intact, there was a drawback of eating water tank capacity. This has little effect on relatively large water tanks, but it is a volume that is hard to ignore in water-saving toilets with very small water tanks.

Figure 2 shows a cross-sectional structure of the toilet water tank in which the automatic flushing device of the present invention is installed, Figure 3 is a cross-sectional view showing only the automatic flushing device 30 in detail. For reference, in FIGS. 2 to 4, some components including the hydraulic chamber 33 and the water tank 10 are shown in cross-section cut to show the internal state, and the operation links 15 and 31 or the flush valve 12 are illustrated. ), The side view is shown as it is, not the cross section, for the sake of understanding. This indicates that those skilled in the art are the most easily illustrated form of technical spirit of the present invention and that no technical error is intentionally included that would impair the actual feasibility of the invention.

2 and 3 will be described in the arrangement and the detailed structure of the present automatic dispensing device 30. First, as compared with FIG. 1, the ball tap 16 and the float 17 are removed, and the control valve 20 is disposed in place of the ball tap, and the hydraulic pressure chamber 33 is provided in the column of the overflow pipe 13 which fixes the flush valve 12. The fixed water outlet pipe of the hydraulic chamber is locked in the water. Since the volume of the hydraulic chamber is similar to the conventional float volume, the automatic flushing device 30 of the present invention is very easy to readjust the tank water storage even when newly installed in the existing toilet water tank, without difficulty even in a small water-saving water tank. Installation is possible.

2, it can be seen that the conventional manual actuating link 15 is substantially connected to the hydraulic actuating link 31 of the present invention by a connecting chain. In other words, it is difficult to operate organically in combination with the manual operation link of the two-stage operation of the supplementary water supply system using the supplementary water supply system, which is difficult to control the two stages of urine, but in the present invention, the hydraulic pressure is operated when the tank level is lowered to a certain height. Since the link 31 can be quickly returned while still replenishing water can be supplied, both of the link 31 and the manual drain button 14 can coexist naturally as needed.

The supplementary water inlet 35 is formed in the pressure receiving chamber 33, which is a core configuration, and the supplementary water of high pressure is introduced from the external water supply pipe 11 through the control valve 20 and the supplemental water supply pipe 21. In addition, the introduced supplemental water flows out from the pressure receiving chamber 33 to the first supplementary water outlet 36 and the second supplementary water outlet 37 formed toward the bottom of the water tank.

On the upper surface of the pressure receiving chamber 33, that is, the surface exposed to air, the flexible packing 34 pressed by the spring 33 is provided.

In addition, a hydraulic pressure actuating link 31 is installed on the hydraulic chamber 33 to open the flush valve 10 of the toilet by the expansion of the surface of the hydraulic chamber including the flexible packing 34. Therefore, if the introduced replenishment water flows out a little less due to the difference between the inflow pressure and the outflow pressure, the volume of the replenishing water expands the flexible packing 34 to push the hydraulic operation link 31.

If the amount of replenishing water flowing through the inlet and the amount of replenishing water flowing out through the outlet are the same, the pressure chamber may be in an inflow / equilibrium state.

However, in the present invention, the inlet line resistance and the outlet line resistance of the hydraulic chamber are intentionally set differently. Specifically, in the hydraulic pressure chamber of the present invention, the outflow line resistance may be set to be much larger than the inlet line resistance when the water tank is at full water level, and slightly smaller when the water tank is at or below the medium water level, and when the water tank is at the minimum water level, the replenishment water is discharged. The hydraulic energy of can be set to act to help the valve closing and the contraction of the flexible packing 34 by directly hitting the flush valve (12).

To this end, the first supplementary water outlet 36 and the second supplementary water outlet 37 have a smaller cross-sectional area than the supplemental water inlet 35, and more specifically, the second supplementary water outlet 37 is the first supplementary water outlet 37. It may be formed to have a pipe section area equal to or smaller than the water outlet 36 and a lower outlet level. In addition, through the appropriate combination of the height-adjustable fixture 39 and the overflow pipe 13, the hydraulic pressure chamber 33 and the second supplementary water outlet 37 can be set to be vertically above the flush valve 12. have.

For reference, the above-mentioned replenishment water outlets 36 and 37 are set to only two as embodiments of the present invention, but may be further formed as necessary. However, as the supplementary water outlet increases, the outflow line resistance gradually decreases, so that the inlet supplemental water initially forms a pressure enough to normally lift the flexible packing 34 on the upper surface of the hydraulic chamber 33. The sum of all the resistances of the outflow pipes should be set so as not to be lower than the inflow pipe resistance value of the replenishment water inlet 35.

Meanwhile, the pressure receiving chamber 33 fixed on the space in the water tank 10 of the toilet by the height-adjustable fixing part 39 or the like is disposed so that at least a part of the water tank 10 is submerged in water.

In this case, the surface of the hydraulic chamber 33 including the flexible packing 34 is configured to be exposed to air without being submerged in water even when the water tank 10 is at full water level in order to always have a minimum expansion resistance.

It will be described in more detail on the basis of FIG. As described above with reference to FIGS. 2 and 3, the outlet water level of the first supplementary water outlet 36 is submerged in water when the pressure chamber 33 is at least partially submerged in the water, and the water tank 10 When the water level of the decrease is formed to be exposed to the air. Preferably, when the water tank is at full water level, the water pressure chamber 33 is submerged in the air except for the flexible packing 34 and the drainage starts by opening the flush valve within the air together with the first supplementary water outlet 36 within the air. It is set to be exposed. At this time, the first supplementary water outlet 36 has a small pipe cross-sectional area, and because of the rapid decrease in pressure, the supplementary water is discharged into the spray type, such as an orifice-type jet, and the pressure in the hydraulic chamber drops, but the second supplementary water outlet 37 is still present. ) Is soaked in deep enough water that the flow does not increase rapidly. Therefore, the flexible packing 34 stalls briefly in the expanded state. At this time, the sum of the replenishment water flowing out through the first and second replenishment water outlets is almost the same as the replenishment water introduced through the replenishment water inlet 35.

In order to implement such a subtle pressure state more easily and stably, any one or more of the first supplementary water outlet 36 or the second supplementary water outlet 37 may adjust the effluent flow rate to adjust the cross-sectional area of the pipeline. 38 can be added.

As a preferred design, the first supplementary water outlet may be configured in a fully (rapid) open type to stop the suddenly expanded flexible packing, and the effluent quantity control opening 38 may be added only to the second supplementary water outlet 37. The outflow amount adjusting part 38, which can be screwed into the pipe easily, effectively lowers the water level when the outlet is submerged in water, so that the flow rate in the water as well as the pressure change rate of the pressure chamber can be adjusted. There is this.

4A shows an initial standby state similar to that of FIG. 2.

The pressure chamber 33 may initially be completely floated above the surface of the water, but may be set to be immersed in water as shown in the figure in order to quickly react to the replenishment water inflow.

4B shows a state in which the supplementary water filled in the hydraulic chamber 33 is increased in the initial operation of the control valve 20 so that the flexible packing 34 rises and expands and the flush valve 12 is slightly lifted up.

At the beginning of the drainage, the water level is lowered immediately, so the first supplementary water outlet 36 is immediately exposed to the air. At this time, as the pressure drops rapidly as soon as the outlet exits, the replenishment water is ejected in a strong spray form, but the second replenishment outlet 37 is still sufficiently submerged in the water, so the actual outflow is not large and the flexible packing 34 does not shrink but expands. Slows down dramatically. Of course, if this state is maintained, the flush valve 12 is wide open by buoyancy regardless of the expansion height of the packing.

Figure 4c is a state in which the control valve to stop the replenishment water supply and resume again (on-off-on). The flexible packing 34 expands and contracts gradually, and thus the contraction is almost completed.

Therefore, the flexible packing 34, which has already been contracted for a time while the supplementary water supply is stopped, does not expand again, and the flush valve 12 is continuously closed. As a result, the water tank low water consumption is only about half and the urine mode control is refilled.

For reference, in this step 4c, the water level sensor 22 may assist the on-off process of the control valve 20 for the reliable operation of the automatic lowering device 30 of the present invention.

4D shows that the replenishment water is introduced into the hydraulic chamber because the control valve is not stopped in the middle, but the tank level is also lowered, and the outflow is also active. The flexible packing 34 is fully inflated and this state is kept short, and the packing starts to reshrink regardless of the hydraulic pressure of the make-up water. The expansion continued as the tank level dropped but continued to run out of drainage, resulting in almost no water tank storage. Eventually, the stool mode control is made, and the supplemental water injected through the second supplemental water outlet 37 in the last step is pressing the flush valve 12. This force prevents the re-expansion of the flexible packing more reliably and quickly through the connection chain.

While the embodiments of the present invention have been described in detail with reference to the drawings, the technical spirit of the present invention is not limited to the above embodiments.

In other words, one of ordinary skill in the art to which the present invention pertains may utilize a technical idea implied by the present invention to implement a simple change or simple extension case, which is not included in the specification and drawings as necessary. It is also clearly included in the scope of the technical idea of the present invention expressed by the following claims.

The present invention describes a typical natural drainage type toilet using only a water tank as an example, but is not limited thereto. The present invention is not limited to being used in a hybrid type toilet in which a natural drainage of a water tank and a forced drainage of a jet water outlet are mixed. .

For example, if both the rim feed and the jet drain depend on the high pressure of the external straight pipe, it is necessary to construct a complex feed distribution mechanism in the rim-jet-rim sequence. If the control valve 20, which is a device, is carried out by the modified timer control of open-stop- (jet water supply) -stop-open-stop instead of the open-stop-open operation in urine mode, the flush valve will soon It means to open and close twice in the mode.

At this time, if the jet water is performed during the waiting time of the stop timing by using the 3-way type control valve, the rim water supply method using the water tank can be substantially performed twice with the automatic water dispensing apparatus of the present invention.

The above method of draining the wash water goes beyond the conventional technical limitation that only two short rim feeds were possible by the high pressure water direct feed rim feed method, which usually has an unnatural and poor cleaning feeling, and has a great effect on improving the emotional quality of the toilet. have.

10: water tank
11: external water pipe
12: flush valve
13: overflow pipe
14: Manual Drain Button
15: Manual Operation Link
16: ball tap
17: float
20: (Electronic) Control Valve
21: make-up water supply line
22: water level detector
23:
24: power line
30: (hydraulic type) automatic flushing device
31: hydraulic link
32: spring
33: hydraulic chamber
34: Flexible Packing
35: make-up water inlet
36: first refill water outlet
37: second refill water outlet
38: outflow control
39: height adjustable fixture

Claims (5)

Hydraulic chamber 33;
Replenishment water inlet 35 formed in the pressure chamber 33;
Flexible packing 34 forming a part of the surface of the hydraulic chamber 33;
A hydraulic pressure actuating link (31) operative to open the flush valve (10) of the toilet bowl by the expansion action of the surface including the flexible packing (34) in the hydraulic chamber (33); And
Automatic water dispensing device (30) comprising a; the first supplementary water outlet (36) formed in the pressure chamber (33) having a pipe cross-sectional area smaller than the replenishment water inlet (35). The method of claim 1,
The pressure receiving chamber (33) is disposed in the water tank (10) of the toilet, at least part of the automatic water dispensing device (30), characterized in that arranged to be submerged in the water when the water tank (10) is full water level. The method of claim 2,
The surface of the side including the flexible packing 34 in the pressure chamber 33 is configured to be exposed to the air without being submerged even when the water tank 10 is full water level 30, characterized in that . The method of claim 3, wherein the first refill water outlet 36,
Automatic water dispensing device 30, characterized in that the pressure chamber 33 is soaked in water when at least a part of the water submerged state, and exposed to the air when the water level of the water tank 10 is reduced . 5. The method of claim 4,
The pressure chamber 33 is further formed by further comprising a second supplementary water outlet 37 and the outflow water amount control port 38,
The second supplementary water outlet 37 is formed to have a lower cross-sectional area and a lower pipe level than the first supplementary water outlet 36.
The outflow amount adjusting opening 38 is an automatic water lowering device 30, characterized in that configured to adjust the outlet cross-sectional area of any one or more of the first supplementary water outlet 36 or the second supplementary water outlet 37. ).

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