A switching valve device and a toilet

Abstract

The utility model provides a kind of switching valve device, including valve body, and the valve body is equipped with water inlet and the water outlet that is connected with water inlet, water inlet is equipped with anti-siphon assembly, so that water flow can flow along relatively smooth path before entering valve body, can reduce the sudden change of water flow direction, so as to reduce water flow energy loss, improve the flushing performance of toilet, anti-siphon assembly includes body, and the body is equipped with first installation cavity, and first installation cavity is connected with water inlet and atmosphere environment by first channel and second channel respectively, and first installation cavity is equipped with valve core in water pressure activity, valve core has the first position of opening second channel and the second position of closing second channel, and when valve core is in first position, first channel, first installation cavity and second channel are interconnected, when valve core is in second position, first channel, first installation cavity and second channel are closed, can prevent liquid from spilling out from second channel during flushing, ensure the stability of liquid flow in valve body.

Description

Technical Field

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

[0002] In the field of kitchen and bathroom appliances such as smart toilets and smart toilet seats, to ensure water safety and prevent liquid inside the fixtures from being drawn back into the water supply network due to siphoning, an effective anti-siphon structure is usually required. Currently, devices equipped with pump-flush tanks commonly use the following two methods:

[0003] Firstly, the use of a U-shaped bend anti-siphon structure results in a meandering flow channel and frequent changes in the flow diameter, leading to greater fluid resistance and significant pressure loss in the pipeline. This not only increases the energy consumption of the water pump but also directly affects the final flushing performance of the toilet.

[0004] Secondly, directly opening a vent hole at the high point of the pipeline will cause water to splash out of the hole when the pump is working.

[0005] There is an urgent need for a new type of switching valve device that can integrate anti-siphon function, effectively blocking siphons while significantly reducing pipeline energy loss and ensuring that the liquid flowing through the valve body does not splash. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a switching valve device and a toilet, which aims to solve at least one of the problems of excessive pipeline energy loss and splashing of liquid flowing through the valve body.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A switching valve device includes a valve body with an inlet and an outlet connected to the inlet. The inlet is characterized by an anti-siphon assembly, which includes a body and a first mounting cavity. The first mounting cavity is connected to the inlet and the atmosphere via a first channel and a second channel, respectively. The first mounting cavity contains a valve core that can move under water pressure. The valve core has a first position where the second channel is open and a second position where the second channel is closed. When the valve core is in the first position, the first channel, the first mounting cavity, and the second channel are interconnected; when the valve core is in the second position, the first channel, the first mounting cavity, and the second channel are closed.

[0009] Furthermore, a connecting groove is provided on one side of the first mounting cavity that connects to the second channel, and the connecting groove can connect the first mounting cavity and the second channel.

[0010] Furthermore, the first mounting cavity is provided with a first protrusion on one side connected to the second channel. The first protrusion protrudes towards the valve core and is provided with several spaced-apart connecting grooves.

[0011] Furthermore, the first mounting cavity is provided with a second protrusion at one end connected to the first channel. The second protrusion protrudes towards the first protrusion. When the valve core is in the second position, the second protrusion forms a sealing fit with the valve core to close the second channel.

[0012] Furthermore, the main body is also provided with a second mounting cavity, which is located above the first mounting cavity. The second mounting cavity is provided with a piston sleeve that is sealed and fitted into the second mounting cavity. The piston sleeve is provided with a second channel, and the end of the piston sleeve facing the first mounting cavity is provided with a second protrusion.

[0013] Furthermore, the piston sleeve includes an outer ring and an inner ring disposed within the outer ring. Several connecting parts are provided between the outer ring and the inner ring at intervals along the circumference of the inner ring. A portion of the valve core is movably inserted through the inner ring. The gap between two adjacent connecting parts and the gap between a portion of the valve core and the inner ring constitute a second channel. A second protrusion is disposed on the outer ring.

[0014] Furthermore, the valve core includes a valve stem and a first sealing element sleeved on the valve stem, with the valve stem movably passing through the inner ring;

[0015] When the valve core is in the first position, the bottom of the valve stem abuts against the first protrusion; when the valve core is in the second position, the first seal abuts against the second protrusion.

[0016] Furthermore, it also includes a water inlet component, which has a water inlet channel, a water outlet end connected to a water inlet, a connection port connected to the water inlet channel, a water inlet end of the main body connected to the connection port, and the connection port has a first positioning component, and the main body has a second positioning component. The first positioning component and the second positioning component are concave and convex, so that the second channel faces upward.

[0017] Furthermore, the outlet includes a first outlet and a second outlet, and the valve body also includes a switching element, which can be used to control the first outlet and / or the second outlet to be connected to the inlet.

[0018] A toilet includes a toilet body, the toilet body is further provided with a switching valve device as described above, the toilet body is provided with a water inlet component, the water outlet of the water inlet component is connected to the water inlet of an anti-siphon component, and the water outlet is connected to a brush ring nozzle and / or a spray nozzle.

[0019] The beneficial effects of this utility model are:

[0020] 1. The present invention proposes a switching valve device, including a valve body and an anti-siphon component connected to the inlet of the valve body, which allows water to flow along a relatively smooth path before entering the valve body. Compared with setting the anti-siphon structure at a high position, it can reduce sudden changes in the direction of water flow, thereby reducing water energy loss and improving the flushing performance of the toilet. Moreover, it eliminates the need to connect an additional pipeline to drain water into the water tank, simplifying the internal pipeline connection of the device. Furthermore, a movable valve core is provided in the first mounting cavity. The valve core has a first position for opening the second channel and a second position for closing the second channel. When the valve core is in the second position, it can prevent liquid from splashing out of the second channel during flushing, ensuring the stability of the liquid flow in the valve body.

[0021] 2. The present invention proposes a switching valve device, wherein a first channel is provided with a connecting groove at one end of the mounting cavity, the connecting groove can connect the first mounting cavity and the second channel, and the connecting groove can prevent liquid from spraying out when the valve body is in the second position.

[0022] 3. The switching valve device proposed in this utility model has a first protrusion on one side of the first mounting cavity connected to the second channel. The first protrusion protrudes towards the valve core. The design of the first protrusion can reduce the opening size of the second channel connected to the first mounting cavity, so that when the valve core is in the second position, it can more effectively form a seal with the valve core to prevent liquid from splashing out.

[0023] 4. The switching valve device proposed in this utility model has a second protrusion at one end of the first mounting cavity connected to the first channel. The second protrusion protrudes in the direction of the first protrusion, so that the pressure increases when the first sealing element contacts the second protrusion, thereby further enhancing the sealing effect.

[0024] 5. The present invention proposes a switching valve device in which the water inlet component is provided with a connection port connected to the water inlet channel, the water inlet end of the main body is connected to the connection port, and the connection port is provided with a first positioning component, and the main body is provided with a second positioning component. The first positioning component and the second positioning component are adapted to each other, so that the water inlet component must be combined with the main body in a unique and specific direction, thereby avoiding errors such as reverse connection and misalignment connection that may occur during the assembly process.

[0025] 6. The present invention proposes a switching valve device, wherein the outlet includes a first outlet and a second outlet, and the valve body also includes a switching component, which can be used to control the first outlet and / or the second outlet to be connected to the inlet, thereby avoiding the redundant design of setting up a separate inlet passage and water pump for each function and simplifying the system architecture. Attached Figure Description

[0026] 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.

[0027] Figure 1 This is a schematic diagram of a switching valve device according to the present invention;

[0028] Figure 2 This is one of the schematic diagrams of an anti-siphon component of a switching valve device according to this utility model;

[0029] Figure 3 This is a second schematic diagram of an anti-siphon component of a switching valve device according to this utility model;

[0030] Figure 4 This is a schematic diagram of the valve core of a switching valve device of the present invention in the first position;

[0031] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0032] Figure 6 This is a schematic diagram of the valve core of a switching valve device of the present invention in the second position;

[0033] Figure 7 for Figure 6 Enlarged view at point B in the middle;

[0034] Figure 8 This is an exploded view of a switching valve device according to the present invention;

[0035] Figure 9 This is a schematic diagram of a toilet according to the present invention;

[0036] Figure 10 This is a schematic diagram illustrating how a toilet in the prior art experiences a power outage during a jet flush.

[0037] Figure 11 A schematic diagram of the toilet's power-off function during jet flushing according to this utility model;

[0038] In the diagram, 10 is the valve body; 101 is the inlet; 102 is the outlet; 1021 is the first outlet; 1022 is the second outlet; 103 is the switching component; 20 is the anti-siphon assembly; 201 is the main body; 202 is the first mounting cavity; 203 is the second mounting cavity; 204 is the connecting groove; 30 is the valve core; 301 is the valve stem; 401 is the first protrusion; 402 is the second protrusion; 403 is the third protrusion; 50 is the piston sleeve; 501 is the outer ring; 502 is the inner ring; 5 03. Connector; 504. Mounting groove; 601. First seal; 602. Second seal; 701. First snap-fit ​​position; 702. Second snap-fit ​​position; 80. Water inlet component; 801. Water inlet channel; 802. Water inlet cavity; 901. First positioning component; 902. Second positioning component; 100. Toilet body; 110. Water inlet assembly; 1101. Water pump; 1102. Water inlet valve; 120. Water tank; 130. Brush ring nozzle; 140. Jet nozzle. Detailed Implementation

[0039] Example 1

[0040] The following is combined with Figures 1-8 Example 1 will be described in detail.

[0041] like Figure 1 As shown, a switching valve device includes a valve body 10, which has an inlet 101 and an outlet 102 connected to the inlet 101. An anti-siphon component 20 is provided at the inlet 101, so that the water flow can flow along a relatively smooth path before entering the valve body 10. Compared with setting the anti-siphon structure at a high position, it can reduce the sudden change of water flow direction, thereby reducing water flow energy loss, improving the flushing performance of the toilet, and eliminating the need to connect an additional pipe to drain water into the water tank 120, simplifying the internal pipe connection of the device.

[0042] like Figures 2 to 4 As shown, the anti-siphon assembly 20 includes a body 201, which has a first mounting cavity 202. The first mounting cavity 202 is connected to the water inlet 101 and the atmospheric environment through a first channel and a second channel, respectively. The first mounting cavity 202 is provided with a valve core 30 that can move under water pressure. The valve core 30 has a first position for opening the second channel and a second position for closing the second channel. When the valve core 30 is in the first position, the first channel, the first mounting cavity 202 and the second channel are interconnected. When the valve core 30 is in the second position, the first channel, the first mounting cavity 202 and the second channel are closed, which can prevent liquid from splashing out of the second channel during flushing and ensure the stability of liquid flow in the valve body 10.

[0043] In this embodiment, as Figures 4 to 7As shown, a connecting groove 204 is provided on one side of the first mounting cavity 202 that is connected to the second channel. The connecting groove 204 can connect the first mounting cavity 202 and the second channel. The connecting groove 204 can prevent liquid from spraying out when the valve body 10 is in the second position.

[0044] Furthermore, the first mounting cavity 202 is provided with a first protrusion 401 on one side connected to the second channel. The first protrusion 401 protrudes towards the valve core 30 and is provided with a plurality of spaced connecting grooves 204. The design of the first protrusion 401 can reduce the opening size of the second channel on the side connected to the first mounting cavity 202, so that when the valve core 30 is in the second position, it can more effectively form a seal with the valve core 30 to prevent liquid from splashing out.

[0045] In this embodiment, the first mounting cavity 202 is provided with a second protrusion 402 at one end connected to the first channel. The second protrusion 402 protrudes towards the first protrusion 401, which increases the pressure when the first sealing member 601 contacts the second protrusion 402, further enhancing the sealing effect. When the valve core 30 is in the second position, the second protrusion 402 and the valve core 30 form a sealing fit to close the second channel.

[0046] Furthermore, the main body 201 is also provided with a second mounting cavity 203, which is located above the first mounting cavity 202. The second mounting cavity 203 is provided with a piston sleeve 50 that is sealed and fitted to the second mounting cavity 203. The piston sleeve 50 is provided with a second channel, and the end of the piston sleeve 50 facing the first mounting cavity 202 is provided with a second protrusion 402.

[0047] Specifically, the main body 201 is provided with a first snap-fit ​​position 701, and the piston sleeve 50 is provided with a second snap-fit ​​position 702. The first connection position is a snap-fit ​​groove, and the second connection position is a snap-fit ​​protrusion. The connection groove and the snap-fit ​​protrusion are in concave-convex fit, which can guide the piston sleeve 50 to be installed correctly, reduce assembly errors, and make the connection between the piston sleeve 50 and the main body 201 more secure.

[0048] In this embodiment, the piston sleeve 50 includes an outer ring 501 and an inner ring 502 disposed within the outer ring 501. A plurality of connecting members 503 are provided between the outer ring 501 and the inner ring 502, which are spaced apart circumferentially along the inner ring 502. A portion of the valve core 30 is movably inserted through the inner ring 502. The gap between two adjacent connecting members 503 and the gap between a portion of the valve core 30 and the inner ring 502 constitute a second channel, and a second protrusion 402 is disposed on the outer ring 501.

[0049] In this embodiment, the valve core 30 includes a valve stem 301 and a first sealing element 601 sleeved on the valve stem 301. The valve stem 301 is movably inserted through the inner ring 502. When the valve core 30 is in the first position, the bottom of the valve stem 301 abuts against the first protrusion 401. When the valve core 30 is in the second position, the first sealing element 601 abuts against the second protrusion 402. Furthermore, a third protrusion 403 is provided between the valve stem 301 and the first sealing element 601. The third protrusion 403 and the bottom of the valve stem 301 form an installation space, which can be used to install the first sealing element 601. The piston sleeve 50 is provided with an installation groove 504. A second sealing element 602 can be assembled in the installation groove 504. The second sealing element 602 can form a sealing fit with the piston sleeve 50, which can effectively prevent gas from leaking from the gap between the piston sleeve 50 and the body 201, thus preventing damage to the sealing effect between the piston sleeve 50 and the body 201.

[0050] like Figure 8 As shown, the switching valve device also includes a water inlet component 80, which has a water inlet channel 801. The water outlet of the water inlet component 80 is connected to the water inlet 101. The water inlet component 80 has a connection port communicating with the water inlet channel 801. The water inlet end of the body 201 is connected to the connection port, and the connection port is provided with a first positioning component 901. The body 201 is provided with a second positioning component 902. The first positioning component 901 and the second positioning component 902 are concave and convex, so that the water inlet component 80 must be combined with the body 201 in a unique and specific direction, avoiding errors such as reverse connection and misalignment connection that may occur during assembly. In this embodiment, through the mutual cooperation of the first positioning component 901 and the second positioning component 902, the second channel faces upward.

[0051] Specifically, the water inlet component 80 also includes a water inlet cavity 802 that allows water to flow in.

[0052] In this embodiment, the outlet 102 includes a first outlet 1021 and a second outlet 1022. The valve body 10 also includes a switching component 103, which can be used to control the first outlet 1021 and / or the second outlet 1022 to be connected to the inlet 101. This avoids the redundant design of setting up an inlet passage and water pump separately for each function, and simplifies the system architecture.

[0053] The operating principle of the switching valve device provided in this embodiment is as follows:

[0054] like Figure 5 As shown, when no water flows into the water inlet chamber 802, the valve core 30 moves towards the first channel under its own weight, and the bottom of the valve stem 301 abuts against the first protrusion 401. At this time, the valve core 30 is in the first position, and the first channel is connected to the second channel, so that the water inlet chamber 802 is connected to the atmospheric environment.

[0055] like Figure 7As shown, when water flows into the inlet chamber 802, the valve core 30 is compressed and moves toward the piston sleeve 50. At this time, the valve core 30 is in the second position, and the first seal 601 abuts against the second protrusion 402 and forms a sealing fit with the first protrusion 401, thus isolating the inlet chamber 802 from the atmospheric environment.

[0056] Example 2

[0057] The following is combined with Figures 9 to 11 The second embodiment will be described in detail below.

[0058] like Figure 9 As shown, this embodiment also provides a toilet, including a toilet body 100. The toilet body 100 is also provided with the switching valve device as described above. The toilet body 100 is provided with a water inlet assembly 110. The water outlet of the water inlet assembly 110 is connected to the water inlet of the anti-siphon assembly 20. The water outlet 102 is connected to a brush ring nozzle 130 and / or a spray nozzle 140.

[0059] Furthermore, the water inlet assembly 110 includes a water pump 1101 connected to the toilet tank 120, and an inlet valve 1102 connected to the water pump 1101. The outlet of the inlet valve 1102 is connected to the inlet of the water inlet component 80. The first outlet 1021 of the valve body 10 is connected to the brush ring nozzle 130, and the second outlet 1022 is connected to the jet nozzle 140. Under the action of the switching component 103, the toilet can switch between water output from the brush ring nozzle 130 and / or the jet nozzle 140.

[0060] Specifically, when the toilet tank 120 is working normally, its liquid level is lower than the height of the water inlet channel 801 of the water inlet component 80.

[0061] like Figure 10 As shown, the existing toilet does not have an anti-siphon component 20 installed at the inlet 101 of the switching valve device. When the toilet is in the spraying water state, if there is a sudden power outage, the switching valve device and all water pipes will be filled with water, forming a communication between the toilet body 100 and the water tank 120. Since the water level in the water tank 120 is higher than that in the spray nozzle 140 and the inlet valve 1102 continuously replenishes water to the water tank 120, the spray nozzle 140 will continuously spray water, causing serious waste of water resources.

[0062] like Figure 11 As shown in this embodiment, when the toilet is in the spray water state, if the power is suddenly cut off, although the switching valve device and each water pipe are still full of water, the height of the water inlet channel 801 is higher than the water level of the water tank 120, so that the water inlet 80 can still be connected to the atmosphere, breaking the communication device formed between the toilet body 100 and the water tank 120. Under the action of atmospheric pressure, the water level of the inlet 101 returns to the normal water level of the water tank 120, and the spray nozzle 140 stops flowing water, thus saving water resources.

[0063] 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 switching valve device, comprising a valve body, the valve body having an inlet and an outlet communicating with the inlet, characterized in that, An anti-siphon assembly is provided at the water inlet. The anti-siphon assembly includes a body and a first mounting cavity. The first mounting cavity is connected to the water inlet and the atmospheric environment through a first channel and a second channel, respectively. A valve core that can move under water pressure is provided in the first mounting cavity. The valve core has a first position for opening the second channel and a second position for closing the second channel. When the valve core is in the first position, the first channel, the first mounting cavity, and the second channel are interconnected. When the valve core is in the second position, the first channel, the first mounting cavity, and the second channel are closed.

2. The switching valve device as described in claim 1, characterized in that, The first mounting cavity is provided with a connecting groove on one side of the second channel, and the connecting groove can connect the first mounting cavity and the second channel.

3. The switching valve device as described in claim 2, characterized in that, The first mounting cavity is provided with a first protrusion on one side connected to the second channel. The first protrusion protrudes towards the valve core and is provided with a plurality of spaced-apart connecting grooves.

4. A switching valve device as described in claim 3, characterized in that, The first mounting cavity is connected to one end of the first channel and has a second protrusion. The second protrusion protrudes towards the first protrusion. When the valve core is in the second position, the second protrusion and the valve core form a sealing fit to close the second channel.

5. A switching valve device as described in claim 4, characterized in that, The body also has a second mounting cavity, which is located above the first mounting cavity. The second mounting cavity has a piston sleeve that is sealed and fitted into the second mounting cavity. The piston sleeve has a second channel inside, and the end of the piston sleeve facing the first mounting cavity has a second protrusion.

6. A switching valve device as described in claim 5, characterized in that, The piston sleeve includes an outer ring and an inner ring disposed within the outer ring. A plurality of connecting members are provided between the outer ring and the inner ring and spaced apart along the circumference of the inner ring. A portion of the valve core is movably inserted through the inner ring. The gap between two adjacent connecting members and the gap between a portion of the valve core and the inner ring constitute the second channel. The second protrusion is disposed on the outer ring.

7. A switching valve device as described in claim 6, characterized in that, The valve core includes a valve stem and a first sealing element sleeved on the valve stem, and the valve stem is movably inserted through the inner ring; When the valve core is in the first position, the bottom of the valve stem abuts against the first protrusion; when the valve core is in the second position, the first seal abuts against the second protrusion.

8. A switching valve device as described in claim 1, characterized in that, It also includes a water inlet component, which has a water inlet channel. The water outlet of the water inlet component is connected to the water inlet. The water inlet component has a connection port that communicates with the water inlet channel. The water inlet end of the main body is connected to the connection port, and the connection port has a first positioning component. The main body has a second positioning component. The first positioning component and the second positioning component are adapted to each other so that the second channel faces upward.

9. A switching valve device as described in claim 1, characterized in that, The water outlet includes a first water outlet and a second water outlet, and the valve body also includes a switching component, which can be used to control the first water outlet and / or the second water outlet to be connected to the water inlet.

10. A toilet, comprising a toilet body, characterized in that, The toilet body is further provided with a switching valve device as described in any one of claims 1-9, the toilet body is provided with a water inlet assembly, the water outlet of the water inlet assembly is connected to the water inlet of the anti-siphon assembly, and the water outlet is connected to a brush ring nozzle and / or a spray nozzle.

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