Pump-driven pressure type flushing system and flushing method

Abstract

The invention discloses a pump-driven pressure-type flushing system and a flushing method, solves the problem that the flushing performance of a pressure-type flushing system is easily influenced by water inlet pressure, and particularly can overcome the defect of flushing weakness caused by sharp attenuation of the flow of the pressure-type flushing system in the rear half process. The pressure type flushing system driven by the pump comprises a pressure flushing mechanism and a water inlet mechanism. The pressure flushing mechanism is provided with a pressure cavity for storing water, a first water outlet, a second water outlet and a negative pressure air inlet; the first water outlet and the second water outlet achieve the ring washing function and the main flushing function of the pressure flushing mechanism respectively. The negative pressure air inlet is communicated with the pressure cavity so as to realize air inlet while water enters the pressure cavity; the water inlet mechanism at least comprises a water pump, and the water pump supplies water to the pressure type flushing mechanism so as to achieve corresponding functions of the first water outlet and the second water outlet.

Description

Technical Field

[0001] The invention belongs to the technical field of pressure-type flushing, and in particular relates to a pump-driven pressure-type flushing system and a flushing method. Background Art

[0002] The pressure flushing system is a sanitary ware flushing technology that mainly uses compressed air to enhance the force of water flow. It is commonly found in toilets and other bathroom equipment. Its core is to quickly release water flow through pressure to improve flushing efficiency and cleaning effects. It has the characteristics of high efficiency and water saving, anti-clogging, wide applicability, and strong hygiene. It is especially suitable for areas with scarce water resources and insufficient water pressure.

[0003] However, even if the pressure flushing system can improve the flushing effect, its flushing performance will still be affected by the pressure of the water pipe to a certain extent: when the water pressure is high, the energy stored is relatively large, and the flushing performance is better; when the pressure of the water pipe is low, especially when it is lower than 0.1MP, the flushing performance usually cannot meet the expected requirements. In the related prior art, the pump flushing system will not be affected by the pressure of the water pipe, and the pressure of the water pipe has almost negligible effect on the flushing performance of the pump flushing system. Its disadvantage is that it is limited by the life of electronic components and the upper limit of the pump power, resulting in the power of the overall system being limited, stuck at a bottleneck and unable to be further improved, and its flushing performance cannot reach the ideal state. Summary of the invention

[0004] The main purpose of the present invention is to provide a pump-driven pressure flushing system and flushing method to solve the problem that the flushing performance of the pressure flushing system is easily affected by the water inlet pressure, especially to solve the defect that the flow rate of the pressure flushing system decays sharply in the second half, resulting in weak flushing.

[0005] In order to achieve the above object, one of the solutions of the present invention is: A pump-driven pressure flushing system comprises a pressure flushing mechanism and a water inlet mechanism; the pressure flushing mechanism is provided with a pressure chamber for storing water, and a first water outlet, a second water outlet and a negative pressure air inlet; the first water outlet and the second water outlet respectively realize the ring washing and main flushing functions of the pressure flushing mechanism; the negative pressure air inlet is connected with the pressure chamber to realize air intake while water enters the pressure chamber; the water inlet mechanism comprises at least a water pump, and the water pump supplies water to the pressure flushing mechanism to realize the corresponding functions of the first water outlet and the second water outlet.

[0006] The pressure flushing mechanism includes a pressure bag having the pressure chamber, a three-way joint, a first pipe and a second pipe; the first pipe and the second pipe are connected to the two ends of the three-way joint, the third end of the three-way joint is connected to the first water outlet, and the second water outlet is arranged in the pressure chamber; the output end of the water pump is connected to the first pipe.

[0007] Preferably, the pressure chamber is provided with a water inlet for connection with the second pipeline, and a one-way valve is provided in the water inlet.

[0008] Preferably, a venturi tube is provided on the inner side of the water inlet, and the venturi tube is communicated with the negative pressure air inlet.

[0009] The first water outlet and the second water outlet are respectively installed with a first drain valve and a second drain valve for controlling drainage; the first drain valve and the second drain valve are respectively controlled by a first switch and a second switch to realize opening and closing.

[0010] Preferably, the first drain valve and the second drain valve are both pilot valves; the first switch and the second switch are both solenoid valves or mechanical opening valves with a drainage function.

[0011] The water inlet mechanism also includes a water tank for storing water, the inlet of the water tank is connected to a water source, and the water pump is installed at the outlet of the water tank.

[0012] Preferably, the water tank is provided with an overflow port.

[0013] Preferably, a water inlet valve is installed at the inlet of the water tank, and an input end of the water inlet valve is connected to a water source.

[0014] The second solution of the present invention is: A pump-driven pressure flushing method uses a pressure flushing system, the pressure flushing system includes a pressure flushing mechanism and a water inlet mechanism; the pressure flushing mechanism is provided with a pressure chamber for storing water, and a first water outlet, a second water outlet and a negative pressure air inlet; the first water outlet and the second water outlet respectively realize the ring washing and main flushing functions of the pressure flushing mechanism; the negative pressure air inlet is connected to the pressure chamber to realize air intake while the pressure chamber is filled with water; the water inlet mechanism at least includes a water pump, the water pump supplies water to the pressure flushing mechanism to realize the corresponding functions of the first water outlet and the second water outlet; the first water outlet and the second water outlet are respectively installed with a first drain valve and a second drain valve for controlling drainage; the first drain valve and the second drain valve are respectively controlled by a first switch and a second switch to realize opening and closing; and the following steps are included: Step 1. The water pump is turned on and the first switch is turned on for several seconds for washing the toilet bowl; Step 2. The first switch is turned off and the second switch is turned on for several seconds for the main flush of the toilet; Step 3. The first switch is turned off, the second switch is turned off, and the water pump continues to work for several seconds to replenish water in the pressure chamber; Step 4. The water pump is turned off.

[0015] After adopting the above technical solution, the present invention has the following technical effects: The present invention supplies water to the pressure flushing mechanism through the water pump of the water inlet mechanism, and uses the water pump to provide a stable water inlet pressure, which can solve the problem that the flushing performance of the pressure flushing system is easily affected by the pressure at the water supply end, so that the pressure flushing mechanism can have a higher flushing performance throughout the flushing process, especially in the second half of the flushing process, when more pressure has been released in the pressure chamber, the lower limit of the flushing flow rate can be guaranteed by the water inlet flow rate of the water pump, and the flushing advantage is obvious for low-density particles, and the pressure flushing system is no longer weak in flushing due to the attenuation of the flow rate in the second half; at the same time, the introduction of the water pump can make up for the defect of the existing pressure bag volume being too large, and the pressure bag volume can be minimized, and the head of the water pump is the upper limit of the pressure bag pressure, which is safe and controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A system block diagram of a specific embodiment of the present invention.

[0017] Figure 2 It is a stereogram of a specific embodiment of the present invention.

[0018] Figure 3 It is a partial structural stereogram of a specific embodiment of the present invention.

[0019] Figure 4 It is an exploded view of a specific embodiment of the present invention.

[0020] Figure 5 It is a cross-sectional view of a specific embodiment of the present invention.

[0021] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0022] Figure 7 Schematic diagram of water flow direction in a specific embodiment of the present invention Figure 1 .

[0023] Figure 8 Schematic diagram of water flow direction in a specific embodiment of the present invention Figure 2 .

[0024] Fig. 9 Schematic diagram of water flow direction in a specific embodiment of the present invention Figure 3 .

[0025] Fig.10 Schematic diagram of water flow direction in a specific embodiment of the present invention Figure 4 .

[0026] Fig.11 It is a comparison diagram of the flushing effect of the specific embodiment of the present invention and the prior art.

[0027] Description of Figure Numbers: 10-pressure flushing mechanism; 11-pressure bag; 12-three-way connector; 13-first pipeline; 14-second pipeline; 15-check valve; 16-first drain valve; 17-second drain valve; 18-first switch; 19-second switch; 101-pressure chamber; 102-first water outlet; 103-second water outlet; 104-negative pressure air inlet; 105-water inlet; 106-Venturi tube; 20-water inlet mechanism; 21-water pump; 22-water tank; 23-water inlet valve; 30-Electrical control box. DETAILED DESCRIPTION

[0028] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0029] refer to Figure 1-6 As shown, the present invention discloses a pump-driven pressure flushing system, comprising a pressure flushing mechanism 10 and a water inlet mechanism 20; The pressure flushing mechanism 10 is provided with a pressure chamber 101 for storing water, as well as a first water outlet 102, a second water outlet 103 and a negative pressure air inlet 104; the first water outlet 102 and the second water outlet 103 respectively realize the wash ring and main flushing functions of the pressure flushing mechanism 10; the negative pressure air inlet 104 is connected with the pressure chamber 101 to realize air intake while water is entering the pressure chamber 101; The water inlet mechanism 20 at least includes a water pump 21 , and the water pump 21 supplies water to the pressure flushing mechanism 10 to realize the corresponding functions of the first water outlet 102 and the second water outlet 103 .

[0030] Through the above scheme, the present invention supplies water to the pressure flushing mechanism 10 through the water pump 21 of the water inlet mechanism 20, and uses the water pump 21 to provide a stable water inlet pressure, which can solve the problem that the flushing performance of the pressure flushing system is easily affected by the pressure at the water supply end, so that the pressure flushing mechanism 10 can have a higher flushing performance throughout the flushing process, especially in the second half of the flushing process, when a lot of pressure has been released in the pressure chamber 101, the lower limit of the flushing flow rate can be guaranteed by the water inlet flow rate of the water pump 21, which has obvious advantages for flushing low-density particles, and the pressure flushing system is no longer weak in flushing due to the attenuation of the flow rate in the second half; at the same time, the introduction of the water pump 21 can make up for the defect of the existing pressure flushing system that the pressure bag volume is too large, and the pressure bag volume can be minimized, and the head of the water pump 21 is the upper limit of the pressure bag pressure, which is safe and controllable.

[0031] Specific embodiments of the present invention are shown below.

[0032] The pressure flushing mechanism 10 comprises a pressure bag 11 having the pressure chamber 101, a three-way joint 12, a first pipe 13 and a second pipe 14; the first pipe 13 and the second pipe 14 are connected to the two ends of the three-way joint 12, the third end of the three-way joint 12 is connected to the first water outlet 102, and the second water outlet 103 is arranged in the pressure chamber 101 (specifically at the bottom); the output end of the water pump 21 is connected to the first pipe 13. Therefore, when draining water, the first water outlet 102 is independent of the pressure chamber 101 and is directly supplied with water by the water pump 21. The output flow of the water pump 21 can be used for washing before the pressure chamber 101 starts to drain water, which has obvious advantages in cleaning suspended particles.

[0033] Furthermore, the pressure chamber 101 is provided with a water inlet 105 for connecting the second pipe 14, and a one-way valve 15 is provided in the water inlet 105. By providing the one-way valve 15, the water in the pressure chamber 101 will not flow back after the water inlet is completed.

[0034] Secondly, a venturi tube 106 is provided inside the water inlet 105, and the venturi tube 106 is connected with the negative pressure air inlet 104 to achieve air intake while water intake.

[0035] The first water outlet 102 and the second water outlet 103 are respectively installed with a first drain valve 16 and a second drain valve 17 for controlling drainage; the first drain valve 16 and the second drain valve 17 are respectively controlled by a first switch 18 and a second switch 19 to realize opening and closing.

[0036] Furthermore, the first drain valve 16 and the second drain valve 17 are both pilot valves; the first switch 18 and the second switch 19 can be either a solenoid valve or a mechanical opening valve with a drain function. When the switch is a solenoid valve, the present invention further includes an electric control box 30 connected to the solenoid valve signal.

[0037] The water inlet mechanism 20 further includes a water tank 22 for storing water, the inlet of the water tank 22 is connected to a water source, and a water pump 21 is installed at the outlet of the water tank 22; the water pump 21 is a booster pump. Thus, the water tank 22 is used to store water, and then the water pump 21 is used to pump water, so as to ensure that the water supply of the water pump 21 is stable and not affected by the water pipe pressure; at the same time, the use of a booster pump can ensure the output water pressure.

[0038] In the embodiment where a water tank 22 is provided, the water tank 22 is provided with an overflow port 221 .

[0039] In the embodiment where a water tank 22 is provided, a water inlet valve 23 is installed at the inlet of the water tank 22 , and the input end of the water inlet valve 23 is connected to a water source, so as to control whether water is inlet into the water tank 22 .

[0040] The present invention also discloses a pump-driven pressure flushing method, using the above-mentioned pressure flushing system, comprising the following steps: Step 1. The water pump 21 is turned on, and the first switch 18 is turned on for several seconds to wash the toilet ring; Step 2. The first switch 18 is turned off and the second switch 19 is turned on for several seconds for the main flush of the toilet; Step 3. The first switch 18 is turned off, the second switch 19 is turned off, and the water pump 21 continues to work for several seconds to replenish the pressure bag 11 with water; Step 4. The water pump 21 is turned off.

[0041] The working principle of the present invention is as follows: See also Figure 7 When washing the lap, the first switch 18 is turned on, the second switch 19 is turned off, and the water pump 21 is turned on. The water pump 21 draws water from the water tank 22, and the first water outlet 102 starts to discharge water to wash the lap until the preset drainage time ends; then the water pump 21 stops working, the first switch 18 is turned off, and finally the water discharge for washing the lap stops.

[0042] See also Figure 8-10 During the main flushing + water replenishment, the first switch 18 is closed, the second switch 19 is turned on, and the water pump 21 is turned on. The water pump 21 draws water from the water tank 22, and the second water outlet 103 of the pressure bag 11 starts to discharge water to realize the main flushing until the preset drainage time is over; then the second switch 19 is closed, the main flushing water discharge stops, and the water pump 21 continues to work until the pressure bag is replenished with water and the pressure reaches the preset value, after which the water pump 21 stops working and the water inflow ends.

[0043] See also Fig.11 , the flushing effect of the present invention is explained below by comparison with the prior art.

[0044] The advantage of the traditional pressure flushing system is that the flow rate is large and the impact force is strong in the first half of the flushing, which is obviously advantageous for cleaning dirt that is denser than water, larger in volume and easy to pile up and clog. Its disadvantage is that the flow rate decays to zero in the second half of the flushing, and the duration of high flow rate is short, which is obviously disadvantageous for cleaning suspended particles (or dirt that requires continuous flushing to complete cleaning).

[0045] The advantage of the traditional pump flushing system is that the flow rate is stable throughout the flushing process, and it has obvious advantages in cleaning suspended particles; its disadvantage is that the flushing water volume is evenly distributed within a specific time, and the flushing force is relatively small, which has obvious disadvantages in cleaning dirt that is denser than water, larger in volume, and easy to stack and clog.

[0046] The present invention combines pressure flushing and pump water replenishment, and its advantages are: a. Taking the flow rate of common pump stroke as the benchmark (for example, 0.4L / s), the flow rate higher than the pump stroke is called "high flow rate"; after the introduction of pump water replenishment (the air discharge flow rate is 0.3L / s), the "high flow rate" duration of the pressure bag is extended, and the impulse is stronger; b. After the water replenishment pump is introduced, the final drainage flow rate of the system can be retained to 0.25L / s, and the suspended particles can still be easily cleaned.

[0047] In summary, the advantages of the present invention are: (1) In the initial stage of scouring, the peak flow rate is large and the scouring is strong, which has obvious advantages for scouring non-floating heavy objects such as yellow sauce; (2) The flow rate during the entire flushing process will not decay to zero. The water inlet flow rate of the water pump is the lower limit of the flushing flow rate, which has obvious advantages in flushing low-density particles. (3) The introduction of a water pump can make up for the disadvantage of the pressure bag being too large, and can minimize the volume of the pressure bag 11; (4) The water pump head is the upper limit of the pressure of the pressure bag, which is safe and controllable.

[0048] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A pump-driven pressure flushing system, characterized in that: Including pressure flushing mechanism and water inlet mechanism; The pressure flushing mechanism is provided with a pressure chamber for storing water, as well as a first water outlet, a second water outlet and a negative pressure air inlet; the first water outlet and the second water outlet respectively realize the wash ring and main flushing functions of the pressure flushing mechanism; the negative pressure air inlet is connected to the pressure chamber to realize air intake while water enters the pressure chamber; The water inlet mechanism at least includes a water pump, and the water pump supplies water to the pressure-type flushing mechanism to realize the corresponding functions of the first water outlet and the second water outlet.

2. The pump-driven pressure flushing system according to claim 1, characterized in that: The pressure flushing mechanism includes a pressure bag having the pressure chamber, a three-way joint, a first pipe and a second pipe; the first pipe and the second pipe are connected to the two ends of the three-way joint, the third end of the three-way joint is connected to the first water outlet, and the second water outlet is arranged in the pressure chamber; the output end of the water pump is connected to the first pipe.

3. The pump-driven pressure flushing system according to claim 2, characterized in that: The pressure chamber is provided with a water inlet for connecting the second pipeline, and a one-way valve is arranged in the water inlet.

4. The pump-driven pressure flushing system according to claim 3, characterized in that: A venturi tube is arranged inside the water inlet, and the venturi tube is communicated with the negative pressure air inlet.

5. The pump-driven pressure flushing system according to claim 1, characterized in that: The first water outlet and the second water outlet are respectively installed with a first drain valve and a second drain valve for controlling drainage; the first drain valve and the second drain valve are respectively controlled by a first switch and a second switch to realize opening and closing.

6. The pump-driven pressure flushing system according to claim 5, characterized in that: The first drain valve and the second drain valve are both pilot valves; the first switch and the second switch are both solenoid valves or mechanical opening valves with drainage function.

7. The pump-driven pressure flushing system according to claim 1, characterized in that: The water inlet mechanism also includes a water tank for storing water, the inlet of the water tank is connected to a water source, and the water pump is installed at the outlet of the water tank.

8. The pump-driven pressure flushing system according to claim 7, characterized in that: The water tank is provided with an overflow port.

9. The pump-driven pressure flushing system according to claim 7, characterized in that: The inlet of the water tank is equipped with a water inlet valve, and the input end of the water inlet valve is connected to a water source.

10. A pump-driven pressure flushing method using a pressure flushing system, characterized in that The pressure flushing system comprises a pressure flushing mechanism and a water inlet mechanism; the pressure flushing mechanism is provided with a pressure chamber for storing water, as well as a first water outlet, a second water outlet and a negative pressure air inlet; the first water outlet and the second water outlet respectively realize the wash ring and main flushing functions of the pressure flushing mechanism; the negative pressure air inlet is connected with the pressure chamber to realize air intake while the pressure chamber is filled with water; the water inlet mechanism at least comprises a water pump, and the water pump supplies water to the pressure flushing mechanism to realize the corresponding functions of the first water outlet and the second water outlet; the first water outlet and the second water outlet are respectively installed with a first drain valve and a second drain valve for controlling drainage; the first drain valve and the second drain valve are respectively controlled by a first switch and a second switch to realize opening and closing; and the following steps are included: Step 1. The water pump is turned on and the first switch is turned on for several seconds for washing the toilet bowl; Step 2. The first switch is turned off and the second switch is turned on for several seconds for the main flush of the toilet; Step 3. The first switch is turned off, the second switch is turned off, and the water pump continues to work for several seconds to replenish water in the pressure chamber; Step 4. The water pump is turned off.

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