Flushing system and closestool

Abstract

The flushing system comprises a water tank, a first water pump, a water inlet device used for supplementing water to the water tank and a spraying nozzle, the water inlet end of the first water pump is communicated with the water tank, and the water inlet device is connected with a water supplementing pipe; the spraying nozzle is provided with a first spraying channel and a second spraying channel which are mutually independent, the first spraying channel is supplied with water by the first water pump, and the water inlet end of the second spraying channel is communicated with a water supplementing pipe of the water inlet device, so that when water enters the water inlet device, part of water can flow into the second spraying channel along the water supplementing pipe. High-pressure water generated by the first water pump during normal flushing can be prevented from flowing backwards along the water replenishing pipe, and the water replenishing mode is simple in structure, high in reliability and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of toilets, in particular to a flushing system and a toilet. Background Art

[0002] Most existing pump-flushed siphon toilets include a water tank, a water pump, a reversing valve, an ejection port, and a wash ring outlet. The water outlet of the water pump is connected to the ejection port and the wash ring outlet through a reversing valve. The water pump draws water from the water tank to provide a pressurized water flow. The reversing valve can connect or disconnect the connection between the water pump and the ejection port and the wash ring outlet. Usually, after the sewage is discharged, the water level in the trap drops, and the reversing valve is actuated to cause the pumped water to flow out only from the wash ring outlet, replenishing the water in the trap to the height of the water surface. This system has the following problems: (1) The water replenishment process consumes the water stored in the water tank, and the water tank is large in size; (2) The water replenishment process requires the pump to work, which consumes a lot of electricity.

[0003] The Chinese patent application number 202310308619.8 discloses a flushing system for a toilet, which has a water supply hole on the water inlet valve, and connects the water supply hole to the toilet jet pipe through a water supply pipe. When the water inlet valve is filled with water, the water trap is replenished with water. However, after the water supply pipe is directly connected to the jet pipe, when the water pump is working, the high pressure of the water spray pipe will cause the water to flow back along the water supply pipe. In order to prevent the backflow of high-pressure water, a one-way valve needs to be set, but this increases the complexity, failure points and cost of the flushing system. Utility Model Content

[0004] The utility model aims at the technical problems existing in the prior art and provides a flushing system and a toilet, which can prevent high-pressure water from flowing back along the water supply pipe during normal flushing, and the water supply method has a simple structure, high reliability and low cost.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a flushing system, including a water tank, a first water pump, a water inlet device and a jet nozzle for replenishing water for the water tank, the water inlet end of the first water pump is connected to the water tank, and the water inlet device is connected to a water replenishment pipe; the jet nozzle is provided with a first jet channel and a second jet channel independent of each other, the first jet channel is supplied with water by the first water pump, and the water inlet end of the second jet channel is connected to the water replenishment pipe of the water inlet device, so that when the water inlet device is filled with water, part of the water can flow into the second jet channel along the water replenishment pipe.

[0006] Furthermore, the water inlet device is a mechanical water inlet valve.

[0007] Furthermore, the water inlet device is an electromagnetic switch valve, which is provided with a water inlet connected to a tap water source and two water outlets, one of which is used to replenish water to the water tank, and the other is connected to the second injection channel through the water replenishment pipe.

[0008] Furthermore, it also includes a water diverter valve and a circle washing water circuit. The water inlet of the water diverter valve is connected to the water outlet of the first water pump, and the water diverter valve is provided with two water outlets, one of which is connected to the water inlet of the first injection channel, and the other is connected to the circle washing water circuit.

[0009] Furthermore, it also includes a second water pump and a circle washing water circuit. The water inlet end of the second water pump is connected to the water tank, and the water outlet end of the second water pump is connected to the circle washing water circuit; the water outlet end of the first water pump is connected to the water inlet end of the first injection channel.

[0010] Furthermore, the water flow area of ​​the water outlet end of the first jet channel is smaller than the water flow area of ​​the rest of the first jet channel; the water flow area of ​​the water outlet end of the second jet channel is smaller than the water flow area of ​​the rest of the second jet channel; the water flow area of ​​the water outlet end of the first jet channel is larger than the water flow area of ​​the water outlet end of the second jet channel; the water flow area of ​​the water inlet end of the first jet channel is larger than the water flow area of ​​the water inlet end of the second jet channel.

[0011] Furthermore, the spray nozzle includes a water inlet nozzle and a water outlet nozzle, the water inlet nozzle is provided with two water inlet channels, the water outlet nozzle is provided with two water outlet channels, the water inlet nozzle and the water outlet nozzle are sealed and connected, and the two water inlet channels are connected one by one with the two water outlet channels to form the first spray channel and the second spray channel.

[0012] Furthermore, the water diversion valve is a reversing valve.

[0013] The utility model further provides a toilet, comprising a toilet body, a spray port being provided at the bottom of the toilet bowl of the toilet body; and also comprising the flushing system described in any one of the above, a water tank being provided at the toilet body, and the spray nozzle being installed at the spray port.

[0014] Furthermore, the toilet body is provided with a accommodating cavity located at the rear of the toilet bowl, and the water tank is installed in the accommodating cavity.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The jet nozzle of the utility model is provided with a first jet channel and a second jet channel which are independent of each other. The first jet channel is supplied with water by a first water pump, and the water inlet end of the second jet channel is connected with the water supply pipe of the water inlet device, so that when the water inlet device is supplied with water, part of the water can flow into the second jet channel along the water supply pipe. This structure of the utility model makes the water supply and normal flushing channels independent of each other, thereby preventing the high-pressure water generated by the first water pump from flowing back along the water supply pipe during normal flushing, and eliminating the need for a one-way valve in the prior art, so that the water supply method has a simple structure, high reliability and low cost.

[0017] 2. The utility model also includes a second water pump, which can connect the wash water channel and the spray nozzle to a water pump respectively for pressurization to ensure the flushing effect.

[0018] 3. The water flow area of ​​the water outlet of the first jet channel is smaller than the water flow area of ​​the rest of the first jet channel; the water flow area of ​​the water outlet of the second jet channel is smaller than the water flow area of ​​the rest of the second jet channel; the water flow area of ​​the water outlet of the first jet channel is larger than the water flow area of ​​the water outlet of the second jet channel; the water flow area of ​​the water inlet of the first jet channel is larger than the water flow area of ​​the water inlet of the second jet channel. This structure enables the jet nozzle of the utility model to spray high-pressure and large-flow water on the toilet to ensure the flushing effect.

[0019] 4. The spray nozzle includes a water inlet nozzle and a water outlet nozzle, which are sealed and connected, so that the parts of the spray nozzle are small and the structure is simple, and each part meets the requirements of the injection molding process and is easy to open the mold and manufacture.

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments; however, the flushing system and toilet of the present invention are not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the flushing system of the first embodiment of the utility model;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of a toilet according to the first embodiment of the utility model;

[0023] Figure 3 It is a cross-sectional schematic diagram of a toilet according to the first embodiment of the utility model;

[0024] Figure 4 yes Figure 3 A magnified schematic diagram of point A;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the flushing system of the second embodiment of the utility model;

[0026] In the figure: 1. water tank; 2. first water pump; 3. water inlet valve; 31. water supply pipe; 4. jet nozzle; 41. first jet channel; 42. second jet channel; 411 / 421. water inlet end; 412 / 422. water outlet end; 43. water inlet nozzle; 44. water outlet nozzle; 5. water diversion valve; 6. wash ring water channel; 7. second water pump; 8. toilet body; 81. urinal; 811. jet port; 82. accommodating chamber. DETAILED DESCRIPTION

[0027] In the present utility model, the terms "first", "second", etc. are only used to distinguish similar objects, rather than to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. In the description, the orientation or position relationship indicated by "upper", "lower", "top", "bottom", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present utility model. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0028] In addition, in the description of the present invention, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Embodiment 1

[0030] See also Figure 1 , Figure 4 As shown, a flushing system of the utility model comprises a water tank 1, a first water pump 2, a water inlet device for replenishing water for the water tank 1, and a jet nozzle 4, the water inlet end of the first water pump 2 is connected to the water tank 1, and the water inlet device is connected to a water replenishment pipe 31. The jet nozzle 4 is provided with a first jet channel 41 and a second jet channel 42 which are independent of each other, the first jet channel 41 is supplied with water by the first water pump 2, and the water inlet end 421 of the second jet channel 42 is connected to the water replenishment pipe 31 of the water inlet device, so that when the water inlet device is filled with water, part of the water can flow into the second jet channel 42 along the water replenishment pipe 31.

[0031] In this embodiment, the water inlet device is a mechanical water inlet valve 3 .

[0032] The utility model further comprises a water diverter valve 5 and a wash ring water path 6. The water inlet of the water diverter valve 5 is connected to the water outlet of the first water pump 2, and the water diverter valve 5 is provided with two water outlets, one of which is connected to the water inlet end 411 of the first jet channel 41, and the other is connected to the wash ring water path 6. In this embodiment, the water diverter valve 5 is a reversing valve. In other embodiments, the water diverter valve 5 may be a three-way joint without considering the flushing order of the jet nozzle 4 and the wash ring water path 6.

[0033] The water flow area of ​​the water outlet end 412 of the first jet channel 41 is smaller than the water flow area of ​​the rest of the first jet channel 41. The water flow area of ​​the water outlet end 422 of the second jet channel 42 is smaller than the water flow area of ​​the rest of the second jet channel 42. The water flow area of ​​the water outlet end 412 of the first jet channel 41 is larger than the water flow area of ​​the water outlet end 422 of the second jet channel 42. The water flow area of ​​the water inlet end 411 of the first jet channel 41 is larger than the water flow area of ​​the water inlet end 421 of the second jet channel 42.

[0034] In this embodiment, the water outlet end 412 of the first jet channel 41 and the water outlet end 422 of the second jet channel 42 face the same direction, and the water outlet end 412 of the first jet channel 41 is located above the water outlet end 422 of the second jet channel 42. As long as the water outlet end 422 of the second jet channel 42 can flow into the trap, water can be replenished. Therefore, in other embodiments, the water outlet end 422 of the second jet channel 42 can be located at any position above, below, left, or right of the water outlet end 412 of the first jet channel 41, and the water outlet end 422 of the second jet channel 42 can also face any direction.

[0035] The spray nozzle 4 includes a water inlet nozzle 43 and a water outlet nozzle 44. The water inlet nozzle 43 is provided with two water inlet channels, and the water outlet nozzle 44 is provided with two water outlet channels. The water inlet nozzle 43 and the water outlet nozzle 44 are sealed and connected, and the two water inlet channels are connected one by one with the two water outlet channels to form a first spray channel 41 and a second spray channel 42. Specifically, a sealing ring is provided between the water inlet nozzle 43 and the water outlet nozzle 44 to prevent water from flowing between the first spray channel 41 and the second spray channel 42, and also to prevent water from leaking out of the spray nozzle 4.

[0036] The utility model is a flushing system, and its working principle is as follows:

[0037] 1. Flushing process: The first water pump 2 works, pressurizing the water in the water tank 1 to flow to the water diverter valve 5, and then flows to the wash water path 6 and the first jet channel 41 of the jet nozzle 4 through the two water outlets of the water diverter valve 5 to flush the toilet. When the water path enters the jet nozzle 4, since the first jet channel 41 and the second jet channel 42 are independent of each other, the pressurized water of the first water pump will only flow out from the water outlet end 412 of the first jet channel 41, and will not flow back along the water supply pipe 31.

[0038] 2. Water replenishment process: When the water level of the water tank 1 drops, the water inlet valve 3 opens, and part of the water flows to the water tank 1 to fill the water tank 1, and the other part of the water flows along the water replenishment pipe 31 to the second injection channel 42 of the injection nozzle 4, and flows out from the water outlet end 422 of the second injection channel 42 to replenish the water trap. At this time, the water level of the water tank 1 rises to the working water level, and the water inlet valve 3 is closed, and the water intake and replenishment are stopped. Since the water replenishment ratio is set in advance, the water level of the water trap has also reached the water cover.

[0039] The flushing system of the utility model can be applied to toilets, squat toilets, etc. The working principle of the flushing system applied to toilets is as described above.

[0040] See also Figure 2-Figure 4 As shown, a toilet of the utility model comprises a toilet body 8, and a spray port 811 is provided at the bottom of a toilet bowl 81 of the toilet body 8. The toilet also comprises the above-mentioned flushing system, wherein a water tank 1 is arranged on the toilet body 8, and a spray nozzle 4 is installed on the spray port 811.

[0041] In this embodiment, the toilet body 8 is provided with a receiving cavity 82 located at the rear of the toilet bowl 81, and the water tank 1 is installed in the receiving cavity 82. In other embodiments, the water tank is integrally formed at the rear of the toilet bowl 81 of the toilet body 8.

[0042] The utility model provides a toilet, when water is introduced through the water inlet valve 3, water is replenished to the water trap, thereby avoiding consumption of water stored in the water tank 1 during the water replenishment process, and eliminating the use of a water pump during the water replenishment process, thereby reducing the volume and power consumption of the toilet water tank 1. At the same time, the use of a spray nozzle 4 with two spray channels can avoid the high-pressure water of the first water pump 2 from flowing back along the water replenishment pipe 31 during normal flushing.

[0043] Embodiment 2

[0044] See also Figure 5 As shown, a flushing system and toilet of the utility model are different from the first embodiment in that the utility model does not include a water diversion valve, but includes a second water pump 7, the water inlet end of the second water pump 7 is connected to the water tank 1, and the water outlet end of the second water pump 7 is connected to the wash water path 6. The water outlet end of the first water pump 2 is connected to the water inlet end of the first injection channel 41, so that the wash water path 6 and the injection nozzle 4 are each connected to a water pump for pressurization to ensure the flushing effect.

[0045] Embodiment 3

[0046] The flushing system and toilet of the utility model are different from any of the above embodiments in that the water inlet device is an electromagnetic switch valve, which is provided with a water inlet connected to a tap water source and two water outlets, one of which is used to replenish water in the water tank 1, and the other is connected to the second injection channel 42 through a water replenishment pipe. The utility model also includes a liquid level switch and an electric control board, the liquid level switch is installed on the upper part of the water tank 1, and is used to detect the water level and send a signal to the electric control board, so that the electric control board controls whether the electromagnetic switch valve works or not.

[0047] Water replenishment process: When the liquid level switch detects that the water level in water tank 1 is lower than the working water level, it sends a signal to the electronic control board, which controls the electromagnetic switch valve to open, so that tap water flows into water tank 1 in one way and flows into the water trap in another way through the water replenishment pipe and the second injection channel of the spray nozzle 4. When the water level rises to the working water level, the liquid level switch sends a signal to the electronic control board, which controls the electromagnetic switch valve to close, stopping water inflow and replenishment.

[0048] The flushing system and toilet of the utility model, the unrelated parts are the same as the existing technology or can be implemented by adopting the existing technology.

[0049] The above embodiments are only used to further illustrate a flushing system and a toilet of the utility model, but the utility model is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model fall within the protection scope of the technical solution of the utility model.

Claims

1. A flushing system, comprising a water tank, a first water pump, a jet nozzle and a water inlet device for replenishing water in the water tank, wherein the water inlet end of the first water pump is connected to the water tank, and the water inlet device is connected to a water replenishing pipe; characterized in that: The spray nozzle is provided with a first spray channel and a second spray channel which are independent of each other. The first spray channel is supplied with water by the first water pump. The water inlet end of the second spray channel is connected with the water replenishing pipe of the water inlet device, so that when the water inlet device is filled with water, part of the water can flow into the second spray channel along the water replenishing pipe.

2. The flushing system according to claim 1, characterized in that: The water inlet device is a mechanical water inlet valve.

3. The flushing system according to claim 1, characterized in that: The water inlet device is an electromagnetic switch valve, which is provided with a water inlet connected to a tap water source and two water outlets, one of which is used to replenish water to the water tank, and the other is connected to the second injection channel through the water replenishment pipe.

4. The flushing system according to claim 1, 2 or 3, characterized in that: It also includes a water diverter valve and a circle washing water circuit. The water inlet of the water diverter valve is connected to the water outlet of the first water pump, and the water diverter valve is provided with two water outlets, one of which is connected to the water inlet of the first injection channel, and the other is connected to the circle washing water circuit.

5. The flushing system according to claim 1, 2 or 3, characterized in that: It also includes a second water pump and a circle washing water circuit. The water inlet of the second water pump is connected to the water tank, and the water outlet of the second water pump is connected to the circle washing water circuit; the water outlet of the first water pump is connected to the water inlet of the first injection channel.

6. The flushing system according to claim 1, characterized in that: The water flow area of ​​the water outlet end of the first jet channel is smaller than the water flow area of ​​the remaining part of the first jet channel; the water flow area of ​​the water outlet end of the second jet channel is smaller than the water flow area of ​​the remaining part of the second jet channel; The water flow area of ​​the water outlet end of the first jet channel is larger than the water flow area of ​​the water outlet end of the second jet channel; The water flow area of ​​the water inlet end of the first injection channel is larger than the water flow area of ​​the water inlet end of the second injection channel.

7. The flushing system according to claim 1, characterized in that: The spray nozzle includes a water inlet nozzle and a water outlet nozzle, the water inlet nozzle is provided with two water inlet channels, the water outlet nozzle is provided with two water outlet channels, the water inlet nozzle and the water outlet nozzle are sealed and connected, and the two water inlet channels are connected one by one with the two water outlet channels to form the first spray channel and the second spray channel.

8. The flushing system according to claim 4, characterized in that: The water diversion valve is a reversing valve.

9. A toilet, comprising a toilet body, wherein a spray port is provided at the bottom of the toilet bowl of the toilet body; characterized in that: It also includes a flushing system as described in any one of claims 1 to 8, wherein the water tank is disposed on the toilet body, and the jet nozzle is installed on the jet port.

10. The toilet according to claim 9, characterized in that: The toilet body is provided with a containing cavity located at the rear part of the toilet bowl, and the water tank is installed in the containing cavity.

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