A toilet flushing system

Abstract

The application provides a toilet flushing system, which comprises a main water inlet path connected with a water source, a valve B and a valve C connected with two branch water outlet pipes of the main water inlet path in series, a water outlet end of the valve B and the valve C connected with a toilet wall flushing side and a siphon flushing side respectively, a valve A and a switching device connected with the main water inlet path in series, a water pump and a water tank connected with the main water inlet path in parallel, and the switching device connected with a water outlet end of the valve A, so that a water path passing through the valve A is divided into two paths, including a power failure flushing water path and a water supplement water path, the power failure flushing water path connected with a water inlet end of the valve B and the valve C or a water outlet end of the valve C, and the water supplement water path connected with the water inlet end of the valve B and the valve C after being connected with the water tank and the water pump in series. The water pump pressurization mode is adopted to improve the low-pressure flushing effect, when the system is in a power failure state, the switching device is actuated to switch the water path, so that the valve A can directly discharge water to the valve B and the valve C to flush the toilet, and the power failure flushing is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bathroom equipment products, in particular to a toilet flushing system. BACKGROUND

[0002] The toilet is commonly known as a toilet, and its flushing method is usually straight flushing or siphon flushing. The toilet flushing water inlet valve has two water outlets, one of which is connected to the rim side (RIM side) of the toilet wall, and the other is connected to the siphon flushing side (JET side). The RIM side pipe outlet is usually located below the toilet seat ring and close to the seat ring, and the JET side pipe outlet is low and located in the toilet water storage part.

[0003] The flushing method of the flushing valve in the prior art includes the following methods:

[0004] Method one: as shown in Figure 1 , a double switch valve is used. Since the driving power of the switch valve is low, a dry battery can be used for driving, or a mechanical valve opening device can be added to the switch valve, which is manually opened by hand. This method is simple to drive, low in cost, and long in service life. However, the flushing effect of the switch valve is more dependent on the water pressure, and the flushing effect will be poor when the pressure is low.

[0005] Method two: as shown in Figure 2 , a water tank pump and a reversing valve are used. Although this method can solve the problem of poor flushing effect under low water pressure, in the case of power failure, the toilet flushing under power failure can only be realized by driving the water pump. Since the driving power of the water pump is very large, a special large capacitor or large capacity battery must be used for driving, which is high in cost, short in service life, and has safety hazards.

[0006] Method three: as shown in Figure 3 , a water tank pump and a double switch valve are used. In normal state, A and B waterways are used for flushing, and when in power failure state, A and C waterways are used for double switch valve power failure flushing. Although this power failure flushing method is simple, low in cost, and long in service life, it is equivalent to installing two sets of flushing systems, using the water tank + water pump method in normal state, and using the double switch valve method in power failure state. The system is complex, the control is complex, and the cost is high. SUMMARY

[0007] The purpose of the present application is to solve the problems in the prior art, and to provide a toilet flushing system that can realize power failure flushing and improve low water pressure flushing effect.

[0008] In order to achieve the above object, the application provides a toilet flushing system, which comprises a main water inlet path connected with a water source, valves B and C connected with two branch water outlet pipes of the main water inlet path respectively, water outlet ends of the valves B and C connected with a toilet wall flushing side and a siphon flushing side respectively, a valve A and a switching device connected with the main water inlet path, a water pump and a water tank connected with the main water inlet path, the switching device connected with a water outlet end of the valve A, a water path through the valve A divided into two paths, including a power failure flushing water path and a water supplement water path, the power failure flushing water path connected with water inlet ends of the valves B and C or a water outlet end of the valve C, and the water supplement water path connected with the water tank and the water pump and then connected with water inlet ends of the valves B and C.

[0009] Preferably, the valves B and C are two separate valves or combined into one reversing valve.

[0010] Preferably, the valve A and the switching device are two separate valves or combined into one combined valve.

[0011] Preferably, first and second one-way valves are connected with the power failure flushing water path and the water supplement water path respectively.

[0012] Preferably, the switching device has valve seats A and B, a water inlet, and water outlets A and B connected with the water supplement water path and the power failure flushing water path respectively, and a movable valve core movably installed between the valve seats A and B for blocking the water outlet A or the water outlet B.

[0013] Preferably, the valve A and the switching device are combined into one combined valve, the combined valve has a water inlet, a switching cavity, and a sealing diaphragm installed inside, a water outlet C is arranged below the sealing diaphragm, the water outlet C is connected with an inlet of the switching cavity, and outlets of the switching cavity are connected with the water outlet A and the water outlet B.

[0014] Preferably, the valve A of the combined valve is an on-off valve controlled by an electromagnetic coil or a manual control switch, the switching device of the combined valve is a manual control mechanism for switching the water path, the manual control mechanism is movably installed on the combined valve, and the manual control mechanism is linked with the movable valve core or linked with the movable valve core and the manual control switch.

[0015] Preferably, the manual control mechanism is a manual handle assembly, the manual handle is movably installed on the combined valve through an elastic return mechanism, one end of the manual handle is provided with a push frame linked with the movable valve core, and the other end of the manual handle is linked with the on-off valve.

[0016] As preferred, the moving valve core is movably mounted on the push frame, when the push frame is pulled up, an acting force is applied to the moving valve core to drive it to move upward, and when the push frame is reset, no acting force is applied to the moving valve core.

[0017] As preferred, the switching device adopts a floating ball to control the switching of the water path, and the floating ball is arranged in the water tank and linked with the moving valve core.

[0018] The present application has the following advantages: the present application adopts the water pump pressurization mode, under normal conditions, valve A is used to supply water to the water tank, and the water pump is used for flushing, thereby improving the low-pressure flushing effect. When in the power-off state, the switching device is actuated to close the water path between valve A and the water tank, and valve A can directly supply water to valve B and valve C to flush the closestool, thereby realizing the power-off flushing. The present application realizes the normal flushing effect, and solves the power-off flushing scheme by using the existing valve, and the scheme is simple and reliable, and can be controlled by the mechanical mode or the small electric quantity dry battery, and has low cost and long service life.

[0019] The features and advantages of the present application will be described in detail with reference to the embodiments and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic view of the existing intelligent closestool flushing system mode 1;

[0021] Figure 2 is a schematic view of the existing intelligent closestool flushing system mode 2;

[0022] Figure 3 is a schematic view of the existing intelligent closestool flushing system mode 3;

[0023] Figure 4 is a schematic view of embodiment 1 of the present application;

[0024] Figure 5 is a schematic view of embodiment 2 of the present application;

[0025] Figure 6 is a schematic view of embodiment 3 of the present application;

[0026] Figure 7 is a schematic view of the combination valve in embodiment 4 of the present application;

[0027] Figure 8 is a schematic view of the combination valve in embodiment 4 of the present application;

[0028] Figure 9 is a schematic view of the combination valve in embodiment 4 of the present application;

[0029] Figure 10 isFigure 9 A-A cross-sectional view of the combination valve in the natural state when the manual handle is not pulled;

[0030] Figure 11 is Figure 9 A-A cross-sectional view of the combination valve in the state when the manual handle is pulled halfway.

[0031] Figure 12 is Figure 9 A-A cross-sectional view of the combination valve in the state when the manual handle is pulled to the maximum.

DETAILED DESCRIPTION

[0032] Example 1

[0033] Referring to Figure 4 , a toilet flushing system comprises a main water inlet path 10 connected to a water source, and valves B2 and C3 connected in series to two branch water outlet pipes 101 of the main water inlet path 10, respectively, the water outlet ends of the valves B2 and C3 are connected to the toilet wall flushing side and the siphon flushing side, respectively, and further comprises a valve A1 and a switching device 9 connected in series to the main water inlet path 10, and a water pump 4 and a water tank 5 connected in parallel to the main water inlet path 10, the switching device 9 is connected to the water outlet end of the valve A1, and the water path passing through the valve A1 is divided into two paths, including a power failure flushing water path and a water replenishment water path, the power failure flushing water path is connected to the water inlet ends of the valves B2 and C3, and the water replenishment water path is connected to the water inlet ends of the valves B2 and C3 after being connected in series to the water tank 5 and the water pump 4. In this embodiment, the valves B2 and C3 are two separate valves, the valve A1 and the switching device 9 are two separate valves, and the use of the water pump 4 for flushing can improve the low-pressure flushing effect. When in a power failure state, the switching device 9 is actuated to close the water replenishment water path and open the power failure flushing water path, and the valve A1 can directly discharge water to the valves B2 and C3 to flush the toilet, thereby realizing power failure flushing.

[0034] Further, first and second one-way valves 6 and 7 are connected in series to the power failure flushing water path and the water replenishment water path, respectively, in this embodiment, one water outlet end of the switching device 9 is connected in series to the first one-way valve 6 and connected in parallel to the water inlet ends of the valves B2 and C3, and the water outlet end of the water pump 4 is connected in series to the second one-way valve 7 and connected in parallel to the water inlet ends of the valves B2 and C3.

[0035] Example 2

[0036] Referring to Figure 5 , the difference between this embodiment and example 1 is that the power failure flushing water path is connected to the water outlet end of the valve C3.

[0037] Example 3

[0038] Referring to Figure 6The difference between the embodiment and the embodiment 1 is that the valve B2 and the valve C3 are combined into a reversing valve 8.

[0039] Embodiment 4

[0040] Referring to Figure 7 to Figure 10 The difference between the embodiment and the embodiment 1 is that the valve A1 and the switching device 9 are combined into a combined valve, which realizes the switching function while realizing the opening and closing function. Specifically, in the embodiment, the switching device 9 has a valve seat A9021, a valve seat B9031, a water inlet 901, and a water outlet A902 and a water outlet B903 connected with the water supplement channel and the power-off flushing water channel respectively, and the moving valve core 91 is movably installed between the valve seat A9021 and the valve seat B9031, and is used for blocking the water outlet A902 or the water outlet B903.

[0041] Further, the valve A1 and the switching device 9 are combined into a combined valve, which has the water inlet 901 and a switching cavity 900, and further has a sealing diaphragm 92 installed inside, and the water outlet C is arranged below the sealing diaphragm 92, the water outlet C is connected with the inlet of the switching cavity 900, and the outlet of the switching cavity 900 is connected with the water outlet A902 and the water outlet B903.

[0042] Further, referring to Figure 7 to Figure 12 The valve A1 of the combined valve is a switch valve, which adopts the electromagnetic coil control switch 94 or the manual control switch. In the embodiment, the inlet of the switching cavity 900 is connected with two water inlets connected with the water inlet 901, each water inlet is provided with a first valve seat 95 and a second valve seat 96, and the switch valve can control the second valve seat 96 to be opened through the electromagnetic coil control switch 94 (normal water tank water supplement, the electromagnetic coil control switch valve is adopted, the coil is electrified, the internal piston releases the second valve seat 96, the water pressure in the upper cavity of the diaphragm is discharged to the water outlet, so that the water pressure below the diaphragm is large, the diaphragm is lifted), of course, the first valve seat 95 can also be controlled to be opened through the manual control switch. The switching device 9 of the combined valve adopts a manual control mechanism to switch the water channel, the manual control mechanism is movably installed on the combined valve, and the manual control mechanism is linked with the moving valve core 91, or is linked with the moving valve core 91 and the manual control switch. The manual control mechanism can control the switch valve and the switching device 9 at the same time; the manual handle assembly 93 is pulled upward, the moving valve core 91 of the switching device 9 is pulled through the middle line of the switching cavity 900 through the connecting rod mechanism, and then the switch valve is opened by continuing to pull upward, that is, the manual switch realizes switching and then realizes opening of the valve.

[0043] Further, in the embodiment, the manual control mechanism is a manual handle assembly 93, the manual handle 93 is movably installed on the combined valve through an elastic reset mechanism 931, one end of the manual handle 93 is provided with a push bracket 930, the push bracket 930 is linked with the moving valve core 91, the other end of the manual handle 93 is linked with the switch valve. In the embodiment, the elastic reset mechanism 931 is a spring, the manual handle 93 is installed on the combined valve through a guide mechanism 932. The manual handle 93 is linked with the switch valve through a manual trigger mechanism 933, the manual trigger mechanism 933 includes a manual switch and a connecting rod mechanism arranged on the switch valve, and a trigger inclined groove arranged on the manual handle 93, the trigger inclined groove is linked with the connecting rod mechanism, when the manual handle 93 is pulled upward, the trigger inclined groove triggers the manual switch through the connecting rod mechanism, so that the switch valve is opened.

[0044] Further, in the embodiment, the moving valve core 91 is movably installed on the push bracket 930, when the push bracket 930 is pulled upward, an acting force is applied to the moving valve core 91 to drive the moving valve core 91 to move upward, when the push bracket 930 is reset downward, no acting force is applied to the moving valve core 91. In the embodiment, the push bracket 930 has a sliding cavity, the moving valve core 91 has a sliding rod at the bottom, the sliding rod is inserted into the sliding cavity. The moving valve core 91 inside the combined valve is separated from the manual handle 93, when the valve is manually opened, the moving valve core does not need to be 100% sealed with the valve seat A, the water pressure can naturally seal the moving valve core on the valve seat A; if the two are fixed, during the manual opening process, water will leak from the valve seat A; in addition, when the manual handle is released, the closing of the switch valve is delayed, if the two are fixed, the moving valve core will be separated from the valve seat A when the valve is not closed, which will cause water leakage. If the two are separated, the moving valve core can naturally fall by gravity when there is no water pressure.

[0045] The working principle of the embodiment is as follows:

[0046] Referring to Figure 10 , in the natural state, the moving valve core 91 is in the lower position, when the electromagnetic coil control switch 94 is powered on, water enters from the water inlet 901, the sealing diaphragm 92 is lifted, water enters the switching cavity 900, and since the moving valve core 91 is sealed on the valve seat B 9031, water exits from the water outlet A 902.

[0047] Referring to Figure 11When the water needs to be flushed, pull up the manual handle. During the process of pulling up the manual handle, the moving valve core 91 is switched first. When the moving valve core 91 moves upward to about 2 / 3 of the position, the manual handle 93 continues to move upward and drives the manual switch to open the switch valve. Then water enters from the water inlet 901, enters the switching cavity 900, at this time the moving valve core 91 is very close to the valve seat A 9021, and the water pressure will seal the moving valve core 91 on the valve seat A 9021. Water flows out from the water outlet B 903.

[0048] Embodiment 5

[0049] This embodiment is based on embodiment 1, the switching device 9 uses a floating ball to control the switching waterway. Specifically, the switching device 9 has a valve seat A 9021, a valve seat B 9031, a water inlet 901, and a water outlet A 902 and a water outlet B 903 connected with the water supplement waterway and the power-off flushing waterway respectively. The moving valve core 91 is movably installed between the valve seat A 9021 and the valve seat B 9031, used for blocking the water outlet A 902 or the water outlet B 903. The floating ball is arranged in the water tank 5 and linked with the moving valve core 91. Of course, on the basis of embodiment 2, the floating ball and the switch valve are also linked, and the floating ball can be used to control the action of the switch valve, that is, the manual power of embodiment 2 is replaced by the buoyancy as the power.

[0050] The working principle of this embodiment is as follows:

[0051] The water level in the water tank 5 is used to switch by the floating ball, that is, when the water level in the water tank 5 is high, the floating ball is lifted to seal the moving valve core 91 on the valve seat A 9021. At this time, the switch valve is powered on, and the waterway is from the water outlet B 903. When the water level in the water tank 5 is low, the floating ball falls, and the moving valve core 91 also falls to seal on the valve seat B 9031. At this time, the switch valve is powered on, and water flows out from the water outlet A.

[0052] The above embodiments are illustrative of the present application, but not limiting of the present application. Any simple transformation of the present application belongs to the protection scope of the present application.

Claims

1. A toilet flushing system comprising a main water inlet path (10) connected to a water source, and a valve B (2) and a valve C (3) connected in series with two branch water outlet pipes (101) of the main water inlet path (10) respectively, the water outlet ends of the valve B (2) and the valve C (3) being connected to a toilet wall flushing side and a siphon flushing side respectively, characterized in that: Also include the valve A (1) and switching device (9) of the main water inlet path (10) in series, and the water pump (4) and water tank (5) of the main water inlet path (10) in parallel, the switching device (9) is connected with the water outlet end of the valve A (1), the water path through the valve A (1) is divided into two paths, including the power failure flushing water path and the water replenishment water path, the power failure flushing water path is connected to the water inlet end of the valve B (2), the valve C (3), the water replenishment water path is connected to the water inlet end of the valve B (2), the valve C (3) after the water tank (5), the water pump (4) in series; the switching device (9) has valve seat A (9021), valve seat B (9031), water inlet (901), and water outlet A (902) and water outlet B (903) connected with the water replenishment water path and the power failure flushing water path respectively, the moving valve core (91) is movably installed between the valve seat A (9021) and the valve seat B (9031), for blocking the water outlet A (902) or the water outlet B (903); the valve A (1) and the switching device (9) are combined into a combined valve, the combined valve has a water inlet (901) and a switching cavity (900), and a sealing diaphragm (92) is further installed inside, a water outlet C is arranged below the sealing diaphragm (92), the water outlet C is connected with the inlet of the switching cavity (900), the outlet of the switching cavity (900) is connected with the water outlet A (902) and the water outlet B (903); the valve A (1) of the combined valve is an on-off valve, the on-off valve adopts an electromagnetic coil control switch or a manual control switch, the switching device (9) of the combined valve adopts a manual control mechanism to switch the water path, the manual control mechanism is movably installed on the combined valve, and the manual control mechanism is linked with the moving valve core (91) and the manual control switch; the moving valve core (91) is movably installed on the push frame (930), when the push frame (930) is pulled upward, an acting force for driving the moving valve core (91) to move upward is applied to the moving valve core (91), and when the push frame (930) is lowered to reset, no acting force is applied to the moving valve core (91).

2. A toilet flushing system as claimed in claim 1, wherein: The valve B (2) and the valve C (3) are two separate valves, or are combined into a reversing valve (8).

3. A toilet flushing system as claimed in claim 1, wherein: The valve A (1) and the switching device (9) are two separate valves, or are combined into a combined valve.

4. A toilet flushing system as claimed in claim 1, wherein: First one-way valve (6) and second one-way valve (7) are connected in series on the power failure flushing water path and the water replenishment water path respectively.

5. A toilet flushing system as defined in claim 1, wherein: The manual control mechanism is a manual handle (93), the manual handle (93) is movably installed on the combined valve through an elastic reset mechanism (931), one end of the manual handle (93) is provided with a push frame (930), the push frame (930) is linked with the moving valve core (91), and the other end of the manual handle (93) is linked with the on-off valve.

6. A toilet flushing system as defined in claim 1, wherein: The switching device (9) adopts a floating ball to control the switching water path, the floating ball is arranged in the water tank (5) and is linked with the moving valve core (91).

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