Flushing device and closestool

Abstract

The flushing device comprises a switching device and a foaming device, the switching device comprises a first control valve, an adapter is arranged at a first water outlet of the first control valve, and when water flow flows through the adapter, a negative pressure channel generates negative pressure, so that foaming liquid in the foaming device is sucked through a liquid inlet, the adapter only needs to be provided with the liquid inlet, and the foaming liquid in the foaming device can be pumped through the liquid inlet. Unnecessary openings are reduced; in the process of sucking the foaming liquid, air is dissolved into the foaming liquid through the air inlet channel to form primary foaming foam, the primary foaming foam is sucked into the second channel under the action of negative pressure to be mixed with water flow to form secondary foaming foam, and the foaming effect is improved; meanwhile, the foaming device and the brushing ring share a water path, so that the whole ceramic wall surface can be fully brushed during foaming every time, the whole ceramic wall surface is pre-wetted during foaming, and the functions of no water splashing, no contamination and odor isolation are realized.

Description

Technical Field

[0001] This utility model relates to the field of toilet foam shield technology, and in particular to a flushing device and a toilet. Background Technology

[0002] Current smart toilet foam shields typically use a pump to extract foaming liquid and an air pump to supply gas. The gas and foaming liquid mix to form foam. This solution is relatively mature, but it is costly and requires a large installation space. To overcome this technical problem, existing technology uses an adapter to connect a venturi tube to the flushing water circuit. The negative pressure of the venturi tube draws in the foaming liquid, thus avoiding the need for a pump. However, the adapter and venturi tube still occupy space, and an air inlet needs to be installed on the adapter. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a flushing device and a toilet.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A flushing device, characterized in that it includes a first control valve, the first control valve having an inlet and a first outlet connected to the inlet, the first outlet being used to supply water to the brush ring, and an adapter being installed at the first outlet, the adapter having a negative pressure channel based on the negative pressure generated by the water flow and a liquid inlet connected to the negative pressure channel.

[0006] It also includes a foaming device, which has a foaming channel and an air inlet channel connected to the foaming channel. The foaming channel is connected to the liquid inlet, so that the foaming channel and the air inlet channel can draw in foaming liquid and air through the negative pressure generated by the negative pressure channel.

[0007] Furthermore, the negative pressure channel includes a first channel and a second channel that are interconnected along the water outlet direction. The cross-sectional area of ​​the water outlet end of the first channel is smaller than the cross-sectional area of ​​the water inlet end, and the cross-sectional area of ​​the water outlet end of the first channel is smaller than the cross-sectional area of ​​the water inlet end of the second channel. The liquid inlet is connected to the second channel.

[0008] Furthermore, the outlet end of the first channel extends into the inlet end of the second channel, and the inlet is located behind the outlet end of the first channel.

[0009] Furthermore, the first control valve is provided with a second outlet connected to the inlet, and also has a switching element for controlling whether the inlet is connected to the first outlet or the second outlet.

[0010] Furthermore, a second control valve is provided between the foaming channel and the liquid inlet to control the connection between the foaming channel and the liquid inlet.

[0011] Furthermore, the foaming device includes a cavity for holding the foaming liquid, and a gas mixing device that is sealed and adapted to the cavity, the gas mixing device having a foam outlet channel and an air inlet channel communicating with the cavity.

[0012] Furthermore, the mixing device includes a first connector and a second connector. The first connector is provided with a first bubble outlet channel, and the second connector is provided with a second bubble outlet channel. The first bubble outlet channel and the second bubble outlet channel are interconnected and form a bubble outlet channel. The second connector is provided with a first air inlet channel. The gap between the first connector and the second connector forms a second air inlet channel. The first air inlet channel is connected to the second air inlet channel and forms an air inlet channel.

[0013] Furthermore, the second air intake channel is arranged in a ring around the bubble outlet channel, and the first connector is provided with several first air intake channels.

[0014] Furthermore, it also includes a booster pump, with its inlet connected to the water supply source and its outlet connected to the inlet.

[0015] A toilet includes a toilet body, the toilet body is provided with a brush ring nozzle and a spray nozzle, and also includes a flushing device as described above, a first water outlet is connected to the brush ring nozzle, and a second water outlet is connected to the spray nozzle.

[0016] The beneficial effects of this utility model are:

[0017] 1. The present invention proposes a flushing device, comprising a switching device and a foaming device. The switching device includes a first control valve, and a connector is provided at the first outlet of the first control valve. When water flows through the connector, a negative pressure is generated in the negative pressure channel, thereby drawing the foaming liquid in the foaming device through the liquid inlet. This reduces the need for the connector to have only a liquid inlet, thus reducing unnecessary openings. During the process of drawing the foaming liquid, air dissolves into the foaming liquid through the air inlet channel to form primary foam. The primary foam is drawn into the second channel under negative pressure and mixed with the water to form secondary foam, improving the foaming effect. At the same time, the foaming device and the brush ring water share the same water path, ensuring that the entire ceramic wall is brushed during each foaming process. The entire ceramic wall is pre-wetted during foaming, achieving the functions of no splashing, no staining, and odor isolation.

[0018] 2. The flushing device proposed in this utility model includes a negative pressure channel comprising a first channel and a second channel that are interconnected along the water outlet direction. The cross-sectional area of ​​the water outlet end of the first channel is smaller than the cross-sectional area of ​​the water inlet end of the second channel, so that when water flows into the second channel, negative pressure is generated in the second channel, so that the liquid inlet connected to the second channel can draw the foaming liquid in the foaming device.

[0019] 3. The flushing device proposed in this utility model has a second control valve between the bubble outlet channel and the liquid inlet, which is used to control the bubble outlet channel to be connected to the liquid inlet, so as to prevent the water flow of the brush ring from flowing back to the flushing device or flowing out through the air inlet channel when the brush ring ends.

[0020] 4. The flushing device proposed in this utility model has a second air inlet channel arranged in a ring around the foam outlet channel, and a first connecting member provided with a plurality of first air inlet channels to improve the air intake effect, thereby improving the primary foaming effect.

[0021] 5. The flushing device proposed in this utility model includes a booster pump, which is used to increase the flow rate of water flowing into the negative pressure channel, thereby enhancing the negative pressure effect generated in the second channel and improving the foaming liquid suction and air intake effect of the foaming device. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a flushing device according to the present invention;

[0024] Figure 2 This is an exploded view of a flushing device according to the present invention;

[0025] Figure 3 This is a schematic diagram of a switching device for a flushing apparatus according to the present invention;

[0026] Figure 4 This is a cross-sectional view of the switching device of a flushing device according to the present invention;

[0027] Figure 5 This is a schematic diagram of an adapter for a flushing device according to the present invention;

[0028] Figure 6 This is a schematic diagram of the foaming device of a flushing device according to the present invention;

[0029] Figure 7 This is a schematic diagram of the mixing section of a flushing device according to the present invention;

[0030] Figure 8 This is a logic diagram of a flushing device according to the present invention;

[0031] In the diagram, 10 is the first control valve; 101 is the water inlet; 1021 is the first water outlet; 1022 is the second water outlet; 20 is the adapter; 201 is the negative pressure channel; 2011 is the first channel; 2012 is the second channel; 202 is the liquid inlet; 30 is the second control valve; 40 is the foaming device; 401 is the housing; 4011 is the accommodating cavity; 402 is the air mixing device; 4021 is the first connecting piece; 4022 is the second connecting piece; 403 is the foaming channel; 4031 is the first foaming channel; 4032 is the second foaming channel; 404 is the air inlet channel; 4041 is the first air inlet channel; 4042 is the second air inlet channel; 50 is the booster pump; 60 is the water tank; and 70 is the brush ring nozzle. Detailed Implementation

[0032] Example 1

[0033] The following is combined with Figures 1-7 This utility model will be described in detail.

[0034] A flushing device includes a first control valve 10, the first control valve 10 having an inlet 101 and a first outlet 1021 connected to the inlet 101, the first outlet 1021 being used to supply water to the brush ring, and an adapter 20 being installed at the first outlet 1021, the adapter 20 having a negative pressure channel 201 that generates negative pressure based on water flow and an inlet 202 connected to the negative pressure channel 201;

[0035] It also includes a foaming device 40, which has a foaming channel 403 and an air inlet channel 404 connected to the foaming channel 403. The foaming channel 403 is connected to the liquid inlet 202, so that the foaming channel 403 and the air inlet channel 404 draw in the foaming liquid and air through the negative pressure generated by the negative pressure channel 201.

[0036] During use, water flows through the adapter 20, creating negative pressure in the negative pressure channel 201. This negative pressure draws the foaming liquid from the foaming device 40 through the inlet 202, reducing the need for unnecessary openings in the adapter. During the suction of the foaming liquid, air dissolves into the foaming liquid through the air inlet channel 404, forming primary foam. This primary foam is then drawn into the second channel 2012 under negative pressure and mixed with the water to form secondary foam, improving the foaming effect. Simultaneously, the foaming device 40 shares a water path with the brush ring, ensuring that the entire ceramic wall is brushed during each foaming cycle. The foaming process also pre-wets the entire ceramic wall, preventing splashing, staining, and odor control.

[0037] In this embodiment, as Figure 5As shown, the negative pressure channel 201 includes a first channel 2011 and a second channel 2012 that are interconnected along the water outlet direction. The cross-sectional area of ​​the water outlet end of the first channel 2011 is smaller than that of its water inlet end, and the cross-sectional area of ​​the water outlet end of the first channel 2011 is smaller than that of the water inlet end of the second channel 2012. The liquid inlet 202 is connected to the second channel 2012. When the water flows through the first channel 2011, it is compressed, which increases its flow velocity and reduces the pressure on the fluid surface. As a result, a negative pressure is generated in the second channel 2012. Therefore, the liquid inlet 202 is connected to the second channel 2012, so that the second channel 2012 can draw the foaming device 40 through the liquid inlet 202. Furthermore, the water outlet end face of the first channel 2011 extends into the water inlet end of the second channel 2012. Based on the Venturi principle, a negative pressure zone is formed behind the water outlet end face of the first channel 2011. Therefore, the liquid inlet 202 is located behind the water outlet end face of the first channel 2011 to ensure the negative pressure suction effect.

[0038] In this embodiment, as Figure 3 and Figure 4 As shown, the first control valve 10 has a second outlet 1022 connected to the inlet 101, and also has a switching element for controlling whether the inlet 101 is connected to the first outlet 1021 or the second outlet 1022. The second outlet 1022 is used to supply jet water. Therefore, the flushing needs of the toilet and the brush ring are met by controlling the switching element.

[0039] In this embodiment, as Figure 1 As shown, a second control valve 30 is provided between the foam outlet channel 403 and the liquid inlet 202 to control the connection between the foam outlet channel 403 and the liquid inlet 202, preventing the water from flowing back into the flushing device or out through the air inlet channel 404 when the brush ring is finished. In use, the user can close or open the second control valve 30. Closing the second control valve 30 and opening the first water outlet 1021 results in normal brush ring water output; simultaneously opening the second control valve 30 and the first water outlet 1021 sprays foam into the toilet bowl, covering the entire ceramic wall and water surface, meeting the needs of both normal and foam brush ring use.

[0040] In this embodiment, as Figure 6 As shown, the foaming device 40 includes a housing 401, which has a accommodating cavity 4011 for holding foaming liquid, and also includes a gas mixing device 402 that is sealed and adapted to the accommodating cavity 4011. The gas mixing device 402 has a foam outlet channel 403 and an air inlet channel 404 that are connected to the accommodating cavity 4011.

[0041] In this embodiment, as Figure 7As shown, the mixing device 402 includes a first connector 4021 and a second connector 4022. The first connector 4021 is provided with a first bubble outlet channel 4031, and the second connector 4022 is provided with a second bubble outlet channel 4032. The first bubble outlet channel 4031 and the second bubble outlet channel 4032 are interconnected and form a bubble outlet channel 403. The second connector 4022 is provided with a first air inlet channel 4041. The gap between the first connector 4021 and the second connector 4022 forms the second air inlet channel 4042. The first air inlet channel 4041 is connected to the second air inlet channel 4042 and forms an air inlet channel 404.

[0042] In this embodiment, as Figure 7 As shown, the first connector 4021 and the second connector 4022 are mutually adapted to each other. Specifically, the first connector 4021 has a protrusion, and the second connector 4022 has a concave portion adapted to the protrusion. The protrusion and the concave portion are connected to form a second air intake channel 4042, so that the second air intake channel 4042 is arranged in a ring around the bubble outlet channel 403. The first connector 4021 has a plurality of first air intake channels 4041. The number of first air intake channels 4041 is 3 to increase the air intake effect. In other embodiments, the number of first air intake channels 4041 can also be increased or decreased.

[0043] In this embodiment, as Figure 1 and Figure 2 As shown, it also includes a booster pump 50, the inlet of which is connected to a water supply source, namely a water tank 60. In other embodiments, municipal water supply may also be used. The outlet of the booster pump 50 is connected to the inlet 101 to increase the water flow rate, thereby increasing the negative pressure effect within the second channel 2012.

[0044] Example 2

[0045] A toilet includes a toilet body, the toilet body is provided with a brush ring nozzle 70 and a jet nozzle, and also includes a flushing device as described above, wherein a first water outlet 1021 is connected to the brush ring nozzle 70 and a second water outlet 1022 is connected to the jet nozzle.

[0046] The flushing logic of the toilet proposed in this embodiment is as follows: Figure 8 As shown, the details are as follows:

[0047] During normal brushing, the second control valve 30 is closed. The booster pump 50 is turned on, and the switching element connects the inlet 101 to the first outlet 1021, allowing the brush nozzle 70 to spray water for normal rinsing of the ceramic wall. After time period T1, the switching element connects the inlet 101 to the second outlet 1022, and the spray nozzle flushes waste out of the toilet. After time period T2, the switching element connects the inlet 101 to the first outlet 1021, and the brush nozzle 70 replenishes water to the toilet until the water seal height is reached.

[0048] When the foam brush ring is activated, the second control valve 30 is opened, the booster pump 50 is turned on, and the switching component connects the water inlet 101 to the first water outlet 1021. When the water flows through the adapter 20, a negative pressure is generated in the second channel 2012, thereby drawing the foam from the foaming device 40 through the liquid inlet 202. The foam is brushed all over the ceramic wall surface with the water flow and forms a foam layer on the water surface, achieving the functions of no splashing, no staining, and odor isolation. After the user finishes using the toilet, the waste and foam are flushed out of the toilet together.

[0049] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A flushing device, characterized in that, It includes a first control valve, which has an inlet and a first outlet connected to the inlet. The first outlet is used to supply water to the brush ring, and an adapter is installed at the first outlet. The adapter has a negative pressure channel that generates negative pressure based on water flow and an inlet connected to the negative pressure channel. It also includes a foaming device, which has a foaming channel and an air inlet channel connected to the foaming channel. The foaming channel is connected to the liquid inlet, so that the foaming channel and the air inlet channel draw in foaming liquid and air through the negative pressure generated by the negative pressure channel.

2. The flushing device as described in claim 1, characterized in that, The negative pressure channel includes a first channel and a second channel that are interconnected along the water outlet direction. The cross-sectional area of ​​the water outlet end of the first channel is smaller than the cross-sectional area of ​​the water inlet end, and the cross-sectional area of ​​the water outlet end of the first channel is smaller than the cross-sectional area of ​​the water inlet end of the second channel. The liquid inlet is connected to the second channel.

3. The flushing device as described in claim 2, characterized in that, The water outlet end face of the first channel extends into the water inlet end of the second channel, and the liquid inlet is located behind the water outlet end face of the first channel.

4. A flushing device as described in any one of claims 1-3, characterized in that, The first control valve has a second outlet connected to the inlet, and also has a switching component for controlling whether the inlet is connected to the first outlet or the second outlet.

5. A flushing device as described in claim 4, characterized in that, A second control valve is provided between the foaming channel and the liquid inlet to control the connection between the foaming channel and the liquid inlet.

6. A flushing device as described in claim 5, characterized in that, The foaming device includes a cavity for holding foaming liquid and a gas mixing device that is sealed and adapted to the cavity. The gas mixing device is provided with a foam outlet channel and an air inlet channel that communicate with the cavity.

7. A flushing device as described in claim 6, characterized in that, The gas mixing device includes a first connector and a second connector. The first connector has a first bubble outlet channel, and the second connector has a second bubble outlet channel. The first bubble outlet channel and the second bubble outlet channel are interconnected and constitute the bubble outlet channel. The second connector has a first air inlet channel, and the gap between the first connector and the second connector constitutes the second air inlet channel. The first air inlet channel is connected to the second air inlet channel and constitutes the air inlet channel.

8. A flushing device as described in claim 7, characterized in that, The second air intake channel is arranged in a ring around the bubble outlet channel, and the first connector is provided with a plurality of the first air intake channels.

9. A flushing device as described in claim 4, characterized in that, It also includes a booster pump, the inlet of which is connected to a water supply source, and the outlet of which is connected to the inlet.

10. A toilet, comprising a toilet body, characterized in that, The toilet body is provided with a brush ring nozzle and a spray nozzle, and also includes a flushing device as described in any one of claims 4-9, wherein the first water outlet is connected to the brush ring nozzle and the second water outlet is connected to the spray nozzle.

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