Low-noise water tank flushing system and closestool device

Abstract

The utility model provides a low-noise water tank flushing system and a closestool device. The low-noise water tank flushing system comprises a water tank; the power source is arranged in the water tank to pump water in the water tank; the water inlet valve is arranged in the water tank and is provided with a water outlet channel communicated with the water storage cavity of the water tank; the switching valve is arranged in the water tank and is provided with a water inlet channel, a first water outlet channel and a second water outlet channel, the water inlet channel is communicated with the water outlet of the power source, the first water outlet channel is used for being communicated with an upper flushing waterway of the closestool, and the second water outlet channel is used for being communicated with a lower flushing waterway of the closestool; the switching valve selectively controls the water inlet channel to be communicated with the first water outlet channel or the second water outlet channel; the communicating water channel is communicated with the water outlet channel of the water inlet valve and the first water outlet channel; the communicating valve can open the communicating water channel under the water outlet pressure effect of the power source and can reset to close the communicating water channel when the power source is closed; in the process that the power source supplies water to the second water outlet channel, the water inlet valve supplies water to the first water outlet channel through the communicating water channel.

Description

Technical Field

[0001] The utility model relates to the technical field of toilets, in particular to a low-noise water tank flushing system and a toilet device. Background Technique

[0002] In the prior art, some toilets are provided with an upper flushing water path and a lower flushing water path. The upper flushing water path is used to flush the inner wall of the toilet bowl, and the lower flushing water path is used to jet-flush the bottom of the toilet bowl to form a siphon in the sewage discharge pipe. Generally, the existing water tank flushing system for supplying water to the upper flushing water path and the lower flushing water path of the toilet first supplies water to the upper flushing water path for a predetermined time to flush the inner wall of the toilet bowl, then switches to supply water to the lower flushing water path for a predetermined time to form a siphon in the sewage discharge pipe, and finally switches to supply water to the upper flushing water path for a predetermined time to replenish the water seal of the toilet water.

[0003] The problems existing in the above prior art are: during the process of flushing the lower flushing water path of the toilet, due to the formation of a siphon in the sewage discharge pipe, the stored water in the water seal at the bottom of the toilet bowl is taken away by the siphon. In this way, the jet water flow flowing into the bottom of the toilet bowl from the lower flushing water path is close to jetting into the air, without the barrier of stored water to the noise, resulting in a relatively large noise. At the same time, a negative pressure is generated near the jet port (i.e., the outlet of the lower flushing water path), and the sewage in the toilet bowl continuously swirls here and cannot enter the sewage discharge pipe quickly and thoroughly for discharge, and the discharge effect of the sewage is poor. Summary of the Utility Model

[0004] To solve the above technical problems, one of the purposes of the utility model is to provide a low-noise water tank flushing system, which has a simple structure, low flushing noise, and good flushing effect.

[0005] Another purpose of the utility model is to provide a toilet device with the low-noise water tank flushing system.

[0006] To achieve the above purposes, the technical solution adopted by the utility model is:

[0007] A low-noise water tank flushing system includes:

[0008] A water tank having a water storage cavity;

[0009] A power source provided in the water tank to pump the water in the water storage cavity;

[0010] An inlet valve provided in the water storage cavity of the water tank, having an outlet passage communicating with the water storage cavity of the water tank;

[0011] A switching valve is disposed in the water storage cavity of the water tank and has a water inlet channel, a first water outlet channel, and a second water outlet channel. The water inlet channel is communicated with the water outlet of the power source. The first water outlet channel is used to communicate with the upper flushing water path of the toilet, and the second water outlet channel is used to communicate with the lower flushing water path of the toilet. The switching valve selectively controls the communication between the water inlet channel and the first water outlet channel or the second water outlet channel;

[0012] A connecting water channel is disposed between the water inlet valve and the switching valve to communicate the water outlet channel of the water inlet valve and the first water outlet channel;

[0013] A connecting valve can be opened by the water pressure of the water outlet of the power source to open the connecting water channel and can be reset to close the connecting water channel when the power source is closed;

[0014] During the process of the power source supplying water to the second water outlet channel, the water inlet valve supplies water to the first water outlet channel through the connecting water channel.

[0015] In a preferred embodiment, the connecting valve includes a valve core part, a connecting part, and a pressure-receiving part. The valve core part and the pressure-receiving part are disposed at both ends of the connecting part. The inlet end of the connecting water channel forms a first valve port, and the valve core part is in opening and closing cooperation with the first valve port. The connecting part is located in the connecting water channel, and one end of the connecting part provided with the pressure-receiving part extends out of the connecting water channel in a sealed manner. The connecting valve bears the water pressure of the water outlet of the power source through the pressure-receiving part to open the connecting water channel; a reset elastic member is further included, and the reset elastic member is used to drive the connecting valve to reset.

[0016] In a preferred embodiment, the valve core part is a valve plate, the connecting part is a valve rod, and the pressure-receiving part is a piston. A piston cavity is formed on the water inlet channel of the switching valve, and the piston is slidably disposed in the piston cavity.

[0017] In a preferred embodiment, the first valve port is disposed on the water outlet channel of the water inlet valve. A second valve port is further disposed on the water outlet channel of the water inlet valve. The water outlet channel of the water inlet valve is communicated with the connecting water channel through the first valve port and is communicated with the water storage cavity through the second valve port. The valve core part is located between the first valve port and the second valve port. When the valve core part opens the first valve port, it closes the second valve port. When the valve core part closes the first valve port, it opens the second valve port.

[0018] In a preferred embodiment, the water inlet valve has a first float for controlling the opening and closing of the water inlet valve. When the first float floats up, the water inlet valve is closed so that the water outlet channel of the water inlet valve stops discharging water. When the first float falls down, the water inlet valve is opened so that the water outlet channel of the water inlet valve discharges water. The switching valve has a second float for controlling the switching of the switching valve. When the second float floats up, the water inlet channel of the switching valve is connected to the first water outlet channel. When the second float falls down, the water inlet channel of the switching valve is connected to the second water outlet channel.

[0019] In a preferred embodiment, the timing at which the first buoy drops with the water level in the water storage chamber is earlier than or at the same time as the timing at which the second buoy drops with the water level in the water storage chamber.

[0020] In a preferred embodiment, there is a flow gap between the water outlet channel of the water inlet valve and the connecting water channel. When the connecting valve closes the connecting water channel, the water flow in the water outlet channel of the water inlet valve flows to the connecting water channel through the flow gap.

[0021] In a preferred embodiment, the inlet end of the connecting waterway forms a first valve port, the connecting valve has a valve core portion that cooperates with the first valve port for opening and closing, and a notch is provided at the first valve port, and the notch forms the flow gap.

[0022] In a preferred embodiment, the switching valve includes a switching body having the water inlet channel, the first water outlet channel and the second water outlet channel, a switching piece rotatably arranged in the switching body, and a second buoy in conjunction with the switching piece, the second buoy rises or falls with the water level in the water storage chamber to drive the switching piece to move between a first position connecting the water inlet channel and the first water outlet channel and a second position connecting the water inlet channel and the second water outlet channel.

[0023] In a preferred embodiment, the communicating waterway is formed in a communicating water pipe, and the power source, the water inlet valve, the switching valve, and the communicating water pipe are assembled into an integrated structure, and the integrated structure is fixed in the water tank.

[0024] In addition, the utility model also provides a toilet device, including a toilet, wherein the toilet is provided with an upper flushing waterway and a lower flushing waterway, and also includes the low-noise water tank flushing system described in any of the above items.

[0025] Compared with the prior art, the utility model has at least the following beneficial effects:

[0026] The utility model sets a communication water channel between the water inlet valve and the switching valve to communicate the water outlet channel of the water inlet valve and the first water outlet channel of the switching valve, and sets a communication valve, which is configured to be opened by the water pressure of the water outlet of the power source and can be reset to close the communication water channel when the power source is closed. On the one hand, it will not affect the normal water replenishment of the water inlet valve to the water tank. On the other hand, when the power source supplies water to the second water outlet channel of the switching valve, the water inlet valve can supply water to the first water outlet channel through the communication water channel. With such a design, during the process of the second water outlet channel supplying water to the lower flushing waterway of the toilet to spray and flush the bottom of the toilet pan, the water inlet valve can supply water to the upper flushing waterway of the toilet through the communication water channel and the first water outlet channel to continuously supplement the water seal in the toilet pan, ensuring a certain amount of water seal. As a result, the jet water flow flowing into the bottom of the toilet pan from the lower flushing waterway will not spray into the air, and a certain amount of water seal can effectively block the noise generated by the jet, greatly reducing the jet noise. At the same time, it can effectively avoid the problem that the sewage in the toilet pan continuously swirls at the jet port, enabling the sewage to enter the sewage pipe quickly and thoroughly, improving the sewage discharge effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present utility model, and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model, and do not constitute an improper limitation to the present utility model.

[0028] Among them:

[0029] Figure 1 is a three-dimensional assembly schematic diagram of the water tank flushing system according to an embodiment of the present utility model;

[0030] Figure 2 is a three-dimensional schematic diagram of the water tank according to an embodiment of the present utility model;

[0031] Figure 3 is one of the three-dimensional schematic diagrams of the water tank flushing system with the water tank hidden according to an embodiment of the present utility model;

[0032] Figure 4 is another three-dimensional schematic diagram of the water tank flushing system with the water tank hidden according to an embodiment of the present utility model;

[0033] Figure 5 is the third three-dimensional schematic diagram of the water tank flushing system with the water tank hidden according to an embodiment of the present utility model;

[0034] Figure 6 is one of the state diagrams of the water tank flushing system according to an embodiment of the present utility model (at this time, the water inlet valve is open, the power source is closed, and the first float and the second float are in the falling position);

[0035] Figure 7 It is the second state diagram of the water tank flushing system according to an embodiment of the present invention (at this time, the water inlet valve is closed, the power source is turned on, and the first floating cylinder and the second floating cylinder are in the floating position);

[0036] Figure 8 It is the third state diagram of the water tank flushing system according to an embodiment of the present invention (at this time, the water inlet valve is opened, the power source is turned on, and the first floating cylinder and the second floating cylinder are in the falling position);

[0037] Figure 9 is Figure 6 the enlarged view of part A in

[0038] In the figure, the reference numerals are:

[0039] 10 - water tank; 11 - water storage chamber;

[0040] 20 - power source;

[0041] 30 - water inlet valve; 31 - water outlet channel; 311 - first valve port; 3111 - notch; 312 - second valve port; 32 - first floating cylinder;

[0042] 40 - switching valve; 41 - switching body; 411 - water inlet channel; 4111 - piston chamber; 412 - first water outlet channel; 4121 - first check valve; 413 - second water outlet channel; 4131 - second check valve; 414 - opening; 42 - second floating cylinder; 43 - switching piece;

[0043] 50 - connecting water pipe; 51 - connecting water channel; 511 - perforation; 512 - third check valve;

[0044] 60 - connecting valve; 61 - valve plate; 62 - valve rod; 63 - piston;

[0045] 70 - reset elastic member. Detailed implementation manners

[0046] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0047] Please refer to Figures 1 to 9 , a low - noise water tank flushing system according to an embodiment of the present invention includes components such as a water tank 10, a power source 20, a water inlet valve 30, a switching valve 40, a connecting water pipe 50 having a connecting water channel 51, and a connecting valve 60. Among them:

[0048] The water tank 10 has a water storage chamber 11;

[0049] A power source 20 is provided in the water tank 10 to extract water in the water storage chamber 11;

[0050] An inlet valve 30 is provided in the water storage chamber 11 of the water tank 10 and has an outlet passage 31 communicating with the water storage chamber 11 of the water tank 10;

[0051] A switching valve 40 is provided in the water storage chamber 11 of the water tank 10 and has an inlet passage 411, a first outlet passage 412, and a second outlet passage 413. The inlet passage 411 is communicated with the outlet of the power source 20. The first outlet passage 412 is used to communicate with the upper flushing water path (not shown) of the toilet, and the second outlet passage 413 is used to communicate with the lower flushing water path (not shown) of the toilet. The switching valve 40 selectively controls the communication between the inlet passage 411 and the first outlet passage 412 or the second outlet passage 413;

[0052] A communication water channel 51 is provided between the inlet valve 30 and the switching valve 40 to communicate the outlet passage 31 of the inlet valve 30 and the first outlet passage 412, so that the outlet passage 31 of the inlet valve 30 can supply water to the first outlet passage 412 through the communication water channel 51;

[0053] A communication valve 60 can be opened by the outlet water pressure of the power source 20 to open the communication water channel 51 and can be reset to close the communication water channel 51 when the power source 20 is closed;

[0054] During the process of the power source 20 supplying water to the second outlet passage 413, the inlet valve 30 supplies water to the first outlet passage 412 through the communication water channel 51.

[0055] By providing a communication water channel 51 between the water inlet valve 30 and the switching valve 40 to connect the water outlet channel 31 of the water inlet valve 30 and the first water outlet channel 412 of the switching valve 40, and providing a communication valve 60, the communication valve 60 is configured to be opened by the water pressure of the water outlet of the power source 20 to open the communication water channel 51 and to be reset to close the communication water channel 51 when the power source 20 is closed. Thus, on the one hand, it does not affect the normal water replenishment of the water tank 10 by the water inlet valve 30, and on the other hand, when the power source 20 supplies water to the second water outlet channel 413 of the switching valve 40, the water inlet valve 30 can supply water to the first water outlet channel 412 through the communication water channel 51. With such a design, during the process of the second water outlet channel 413 supplying water to the lower flushing waterway of the toilet to jet-wash the bottom of the toilet bowl, the water inlet valve 30 can supply water to the upper flushing waterway of the toilet through the communication water channel 51 and the first water outlet channel 412 to continuously replenish the water seal water in the toilet bowl, ensuring a certain amount of water seal water. As a result, the jet water flow flowing into the bottom of the toilet bowl from the lower flushing waterway will not jet into the air, and the certain amount of water seal water can effectively block the noise generated by the jet, greatly reducing the jet noise. At the same time, it effectively avoids the problem of the sewage in the toilet bowl continuously swirling at the jet port, enabling the sewage to enter the sewage pipe faster and more thoroughly for discharge, improving the sewage discharge effect.

[0056] The power source 20, the water inlet valve 30, and the switching valve 40 can adopt existing known structures, as long as the power source 20 can draw water from the water tank 10, the water inlet valve 30 can replenish water to the water tank 10, and the switching valve 40 can switch and control the waterway. In this embodiment, the power source 20 specifically adopts a water pump.

[0057] As a preferred embodiment, the communication valve 60 of this embodiment is designed to include a valve core part, a connecting part, and a pressure-receiving part, with the valve core part and the pressure-receiving part provided at both ends of the connecting part. The inlet end of the communication water channel 51 forms a first valve port 311, and the valve core part is in opening and closing cooperation with the first valve port 311. The connecting part is located in the communication water channel 51, and the end of the connecting part provided with the pressure-receiving part extends out of the communication water channel 51 in a sealed manner. The communication valve 60 opens the communication water channel 51 by the pressure-receiving part bearing the water outlet pressure of the power source 20. The communication valve 60 designed in this way has a simple structure and reliable functions.

[0058] In this embodiment, a reset elastic member 70 is further included, and the reset elastic member 70 is used to drive the communication valve 60 to reset. The reset elastic member 70 adopts a compression spring here. By adopting the reset elastic member 70, the communication valve 60 can be reliably reset when it does not bear the water outlet pressure of the power source 20.

[0059] Specifically, the valve core part is a valve plate 61, the connecting part is a valve stem 62, and the pressure-receiving part is a piston 63. A piston chamber 4111 is formed on the water inlet channel 411 of the switching valve 40, and the piston 63 is slidably arranged in the piston chamber 4111. The reset elastic member 70 elastically abuts between the piston 63 and the side wall of the piston chamber 4111. A perforation 511 is formed in the communication water channel 51 (as shown in Figure 6 ), and the valve stem 62 is hermetically and slidably inserted through the perforation 511. Specifically, a guiding cylinder is provided at the perforation 511. A sealing ring groove is provided on the outer wall of the valve stem 62, and a sealing ring (not shown) is provided in the sealing ring groove. The valve stem 62 is inserted into the guiding cylinder and is hermetically and slidably matched with the inner wall of the guiding cylinder through the sealing ring. By providing the piston 63 and the piston chamber 4111, the water outlet pressure of the power source 20 can be fully utilized to drive the communication valve 60, with a clever concept and reliable function.

[0060] Preferably, the first valve port 311 is provided on the water outlet channel 31 of the water inlet valve. A second valve port 312 is also provided on the water outlet channel 31 of the water inlet valve. The water outlet channel 31 of the water inlet valve is respectively communicated with the communication water channel 51 through the first valve port 311 and communicated with the water storage chamber 11 through the second valve port 312. The valve plate 61 is located between the first valve port 311 and the second valve port 312. When the valve plate 61 opens the first valve port 311, it closes the second valve port 312 (see Figure 7 and Figure 8 ), so that the water flow in the water outlet channel 31 of the water inlet valve flows to the communication water channel 51; when the valve plate 61 closes the first valve port 311, it opens the second valve port 312 (see Figure 6 ), so that the water flow in the water outlet channel 31 of the water inlet valve flows into the water storage chamber 11. By switching the opening and closing of the first valve port 311 and the second valve port 312 by the valve plate 61, the water flow direction of the water outlet channel 31 of the water inlet valve is controlled, with a simple and reliable structure.

[0061] In this embodiment, the water inlet valve 30 adopts a valve structure controlled by a float in a common toilet water tank. Specifically, the water inlet valve 30 has a first float 32 for controlling the opening and closing of the water inlet valve 30. When the first float 32 floats, the water inlet valve 30 closes so that the water outlet channel 31 of the water inlet valve 30 stops discharging water. When the first float 32 drops, the water inlet valve 30 opens so that the water outlet channel 31 of the water inlet valve 30 discharges water. The specific working principle of the water inlet valve 30 is a well-known technology and will not be elaborated here.

[0062] The switching valve 40 has a second float 42 for controlling the switching of the switching valve 40. When the second float 42 floats up, the water inlet channel 411 of the switching valve 40 is connected to the first water outlet channel 412. When the second float 42 falls, the water inlet channel 411 of the switching valve 40 is connected to the second water outlet channel 413. Specifically, the switching valve 40 includes a switching body 41 having a water inlet channel 411, a first water outlet channel 412, and a second water outlet channel 413, a switching piece 43 rotatably arranged in the switching body 41, and a second float 42 that cooperates with the switching piece 43. The second float 42 floats up or down with the water level in the water storage chamber 11 to drive the switching piece 43 to move between a first position connecting the water inlet channel 411 and the first water outlet channel 412 and a second position connecting the water inlet channel 411 and the second water outlet channel 413. The switching body 41 has an opening 414 (such as Figure 3 As shown in the figure), the switching piece 43 can be installed into the switching body 41 through the opening 414. The opening 414 is sealed by a pressure cover (not shown). Figure 3 In order to display the switch sheet 43, the pressure cover is hidden, that is, the pressure cover is not in the Figure 3 is shown in the figure. The gland can be fixedly connected to the switch body 41 by means of clamping, welding or screwing. The switch valve 40 uses a rotating switch plate 43 for switching, and the structure is simple. Of course, in other embodiments, other common switching structures can also be used.

[0063] Preferably, in this embodiment, the timing when the first buoy 32 drops with the water level in the water storage chamber 11 is earlier than or at the same time as the timing when the second buoy 42 drops with the water level in the water storage chamber 11. In specific implementation, the position of the first buoy 32 can be adjusted to be higher than or equal to the position of the second buoy 42. The higher the position of the buoy, the earlier it drops with the water level in the water tank 10. In this way, when the switching valve 40 switches to supply water to the second water outlet channel 413, the water inlet valve 30 can also supply water to the first water outlet channel 412 in time through the connecting waterway 51, and the first water outlet channel 412 can replenish the water seal of the toilet in time, and the noise reduction effect and sewage discharge effect are more timely and better.

[0064] In this embodiment, there is a flow gap between the water outlet channel 31 of the water inlet valve 30 and the connecting water channel 51. When the connecting valve 60 closes the connecting water channel 51, the water flow in the water outlet channel 31 of the water inlet valve 30 flows to the connecting water channel 51 through the flow gap. Specifically, in this embodiment, a notch 3111 is provided at the first valve port 311, and the notch 3111 forms the flow gap. The setting of the flow gap can achieve that in the process of the water inlet valve 30 replenishing water to the water storage chamber 11 of the water tank 10, a small part of the water flow can pass through the flow gap (notch 3111), the connecting water channel 51, the first water outlet channel 412, and finally flow to the toilet bowl through the upper flushing water path of the toilet to replenish the water seal of the toilet. ​

[0065] In this embodiment, in order to prevent the water flow in the toilet bowl from flowing back, preferably, a first one-way valve 4121 is provided on the first water outlet channel 412, a second one-way valve 4131 is provided on the second water outlet channel 413, and a third one-way valve 512 is provided on the connecting water channel 51. Each one-way valve opens under the action of the water pressure in its respective waterway and closes under the action of its own gravity after the water pressure in its respective waterway is lost, thereby preventing the water flow in the toilet bowl from flowing back into each waterway, making the product more reliable.

[0066] In this embodiment, the connecting water channel 51 is formed in the connecting water pipe 50. Preferably, the power source 20, the water inlet valve 30, the switching valve 40, and the connecting water pipe 50 are assembled into an integrated structure, and this integrated structure is fixedly arranged in the water tank 10. By assembling the components into an integrated structure, installation and maintenance are facilitated.

[0067] The working process of this embodiment is roughly as follows:

[0068] Refer to Figure 6 , at this time, the power source 20 is not turned on, and the water storage chamber 11 of the water tank 10 is either empty or the water level is lower than the first float 32 and the second float 42. The first float 32 and the second float 42 are in the falling position, and the water inlet valve 30 is in the open state. Since the power source 20 is not turned on, therefore, the piston 63 of the connecting valve 60 is not affected by the water pressure of the water outlet of the power source 20. The valve plate 61 of the connecting valve 60 closes the first valve port 311 and opens the second valve port 312 under the action of the reset elastic member 70, so that the connecting water channel 51 is in the closed state. Most of the water flow in the water outlet channel 31 of the water inlet valve 30 flows into the water storage chamber 11 through the second valve port 312 to replenish the water storage chamber 11, and a small part flows into the connecting water channel 51 through the notch 3111 (flow-through gap), and then flows through the connecting water channel 51 to the first water outlet channel 412 of the switching valve 40, and finally flows into the toilet bowl through the upper flushing waterway of the toilet to replenish the water seal at the bottom of the toilet bowl.

[0069] Refer to Figure 7 , at this time, the power source 20 is turned on, the water storage chamber 11 of the water tank 10 is full of water, the first float 32 and the second float 42 are in the floating state, and the water inlet valve 30 is in the closed state. The water flow extracted by the power source 20 flows to the water inlet channel 411 of the switching valve 40. The floating of the second float 42 drives the switching piece 43 of the switching valve 40 to be in the first position where the water inlet channel 411 and the first water outlet channel 412 are connected. Therefore, the water flow in the water inlet channel 411 of the switching valve 40 flows to the first water outlet channel 412, and then flows into the toilet through the upper flushing waterway of the toilet to flush the inner wall of the toilet.

[0070] Refer to Figure 8At this time, the power source 20 remains in the open state. As the water level of the water storage chamber 11 in the water tank 10 drops, the first float 32 and the second float 42 also drop. The second float 42 drives the switching piece 43 of the switching valve 40 to switch to the second position connecting the water inlet channel 411 and the second water outlet channel 413. Therefore, the water flow of the water inlet channel 411 of the switching valve 40 flows to the second water outlet channel 413, and then flows into the toilet through the lower flushing water channel of the toilet to spray and flush the bottom of the toilet. At the same time, the first float 32 falls and controls the water inlet valve 30 to reopen. Since the piston 63 of the connecting valve 60 is affected by the water pressure of the power source 20, the connecting water channel 51 is opened, and the valve plate 61 opens the first valve port 311 and closes the second valve port 312. Therefore, the water flow of the water outlet channel 31 of the water inlet valve 30 flows through the connecting water channel 51 to the first water outlet channel 412, and then flows into the toilet bowl of the toilet through the upper flushing waterway of the toilet to replenish the water seal at the bottom of the toilet bowl. At this time, the replenishment of the water seal by the first water outlet channel 412 can effectively avoid the problem that the jet water flow from the lower flushing waterway into the bottom of the toilet bowl will spray into the air, greatly reducing the jet noise, and at the same time effectively avoiding the problem that the sewage in the toilet bowl continues to swirl at the jet port (the outlet of the lower flushing waterway), so that the sewage can enter the sewage pipe and be discharged more quickly and thoroughly, improving the sewage discharge effect.

[0071] After flushing the toilet, turn off the power source 20. At this time, the water storage chamber 11 of the water tank 10 is empty or the water level is lower than the first buoy 32 and the second buoy 42, and the water tank flushing system returns to Figure 6 In the state shown, the water inlet valve 30 replenishes water to the water storage chamber 11 of the water tank 10 on the one hand, and replenishes water to the water seal of the toilet bowl through the flow gap on the other hand, in preparation for the next flushing.

[0072] In addition, the utility model also provides a toilet device, including a toilet, the toilet is provided with an upper flushing waterway and a lower flushing waterway, the upper flushing waterway is used to clean and flush the inner wall of the toilet bowl, and the lower flushing waterway is used to spray and flush the bottom of the toilet bowl, and also includes any of the above low-noise water tank flushing systems.

[0073] The above exemplary description of the utility model is combined with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A low-noise water tank flushing system, characterized in that: include: A water tank having a water storage chamber; A power source, disposed in the water tank to extract water from the water storage chamber; A water inlet valve, disposed in the water storage chamber of the water tank, having a water outlet passage communicated with the water storage chamber of the water tank; a switching valve, arranged in the water storage chamber of the water tank, having a water inlet channel, a first water outlet channel and a second water outlet channel, the water inlet channel being connected to the water outlet of the power source, the first water outlet channel being used to be connected to the upper flushing waterway of the toilet, the second water outlet channel being used to be connected to the lower flushing waterway of the toilet, the switching valve selectively controlling the water inlet channel to be connected to the first water outlet channel or to be connected to the second water outlet channel; A communicating water channel, provided between the water inlet valve and the switching valve to communicate the water outlet channel of the water inlet valve with the first water outlet channel; a connecting valve, which can be opened by the water pressure of the water outlet of the power source and can be reset to close the connecting water channel when the power source is turned off; During the process in which the power source supplies water to the second water outlet channel, the water inlet valve supplies water to the first water outlet channel through the connecting water channel.

2. The water tank flushing system according to claim 1, characterized in that: The connecting valve includes a valve core part, a connecting part and a pressure-bearing part, the valve core part and the pressure-bearing part are arranged at both ends of the connecting part, the inlet end of the connecting water channel forms a first valve port, the valve core part cooperates with the first valve port for opening and closing, the connecting part is located in the connecting water channel, and one end of the connecting part provided with the pressure-bearing part sealably extends out of the connecting water channel, the connecting valve bears the outlet water pressure of the power source through the pressure-bearing part to open the connecting water channel; and also includes a reset elastic member, the reset elastic member is used to drive the connecting valve to reset.

3. The water tank flushing system according to claim 2, characterized in that: The valve core part is a valve plate, the connecting part is a valve stem, the pressure-bearing part is a piston, and a piston cavity is formed on the water inlet channel of the switching valve. The piston is slidably arranged in the piston cavity.

4. The water tank flushing system according to claim 2, characterized in that: The first valve port is arranged on the water outlet channel of the water inlet valve, and a second valve port is also arranged on the water outlet channel of the water inlet valve. The water outlet channel of the water inlet valve is respectively connected with the connecting waterway through the first valve port, and is connected with the water storage chamber through the second valve port. The valve core part is located between the first valve port and the second valve port. The valve core part closes the second valve port when opening the first valve port, and opens the second valve port when closing the first valve port.

5. The water tank flushing system according to claim 1, characterized in that: The water inlet valve has a first float for controlling the opening and closing of the water inlet valve. When the first float floats up, the water inlet valve is closed so that the water outlet channel of the water inlet valve stops discharging water. When the first float falls, the water inlet valve is opened so that the water outlet channel of the water inlet valve discharges water. The switching valve has a second float for controlling the switching of the switching valve. When the second float floats up, the water inlet channel of the switching valve is connected to the first water outlet channel. When the second float falls, the water inlet channel of the switching valve is connected to the second water outlet channel.

6. The water tank flushing system according to claim 5, characterized in that: The timing at which the first buoy drops along with the water level in the water storage chamber is earlier than or at the same time as the timing at which the second buoy drops along with the water level in the water storage chamber.

7. The water tank flushing system according to claim 1, characterized in that: There is a flow gap between the water outlet channel of the water inlet valve and the connecting water channel. When the connecting valve closes the connecting water channel, the water flow in the water outlet channel of the water inlet valve flows to the connecting water channel through the flow gap.

8. The water tank flushing system according to claim 1, characterized in that: The switching valve includes a switching body having the water inlet channel, a first water outlet channel and a second water outlet channel, a switching piece rotatably arranged in the switching body, and a second float linked to the switching piece, the second float rises or falls with the water level in the water storage chamber to drive the switching piece to move between a first position connecting the water inlet channel and the first water outlet channel and a second position connecting the water inlet channel and the second water outlet channel.

9. The water tank flushing system according to claim 1, characterized in that: The communicating water channel is formed in a communicating water pipe, and the power source, the water inlet valve, the switching valve, and the communicating water pipe are assembled into an integrated structure, and the integrated structure is fixedly arranged in the water tank.

10. A toilet device, comprising a toilet, wherein the toilet is provided with an upper flushing waterway and a lower flushing waterway, wherein: It also includes the low-noise water tank flushing system according to any one of claims 1-9.

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