A sunken water tank flushing device

Abstract

The present invention provides a sunken water tank flushing device, which is a fluid pressure control system device and is composed of a combination of multiple patented technologies to form new functions, meet the various technical requirements of the sunken water tank toilet, and realize the integrated operation of machinery and electricity; it includes a dual-inlet main body, a water tank inlet component, a pneumatic-hydraulic valve component, a pneumatic generator, an incremental water replenisher, a water spraying component, a check valve, a hydraulic drainage component, a water delivery pipe, and an air delivery pipe. Each component is connected and composed by the water delivery pipe and the air delivery pipe. The sunken water tank flushing device described in the present invention can also meet the various technical requirements for flushing the sunken water tank toilet under low water pressure; at the same time, when the hydraulic drainage component is not working statically, the drain valve is tightly attached to the drain port under the pre-pressure of the spring to achieve water sealing, without dripping, leaking, or backflow. This structure can effectively prevent fecal sewage from flowing back into the storage water tank from the drain port when the toilet drain is blocked, causing pollution to the storage water tank.

Description

Technical Field

[0001] The present invention relates to the technical field of toilets, and particularly to a flushing device for a sunken water tank toilet. Background Art

[0002] In recent years, intelligent toilets have gained market favor. To attract consumers' purchase desire and meet market demands, manufacturers have made great improvements and changes to the appearance of toilets. In particular, the unique shape of the sunken water tank toilet creates space for the installation of electronic components of intelligent toilets, but also poses new technical requirements for the flushing function of the sunken water tank toilet. It is found that there are bottlenecks restricting the development of the flushing of sunken water tank toilets. Especially in areas with low and unstable water pressure, the use effect is poor, failing to meet the requirements of flushing under low water pressure, and even unable to achieve the requirement of cleaning the flushing surface of the toilet. Especially when the electronic components of intelligent toilets malfunction, the intelligent toilets lose their flushing function, greatly affecting the user experience and the market sales of intelligent toilets. The entire industry is looking for a device that can meet the flushing requirements of sunken water tank toilets under low pressure in the water supply pipe network. Summary of the Invention

[0003] In order to solve the technical defects of the product functions of sunken water tank toilets, the present invention provides a flushing device matching the sunken water tank toilet, which is composed of a combination of multiple patented technologies, forming new functions, meeting the various technical requirements of the sunken water tank toilet, and realizing the integrated operation of machinery and electricity.

[0004] The present invention is realized through the following technical solutions:

[0005] A flushing device for a sunken water tank of the present invention is a fluid pressure control system device, including a dual-inlet main body, a water tank inlet component, a pneumatic-hydraulic valve component (referencing the patent "Pneumatic-Hydraulic Valve Multifunctional Execution Device", patent number: ZL201720114686.6), a pneumatic generator, an incremental water replenisher (referencing the patent "Jet Incremental Water Replenishment Device", patent number: ZL201220064635.4), a water spraying component, a check valve, a hydraulic drainage component, a water delivery pipe, and an air delivery pipe. Each component is connected and composed by the water delivery pipe and the air delivery pipe.

[0006] Two water supply valves are arranged in parallel on the dual-inlet main body of the present invention. One water supply valve is a water tank liquid level control inlet valve, that is, the water tank inlet component, which is responsible for supplying water to the water tank and controlling the water storage height of the water tank; the other water supply valve is a pneumatic-hydraulic valve component, which controls the opening and closing of the valve with gas pressure and implements the flushing function for the toilet.

[0007] The gas pressure of the pneumatically controlled hydraulic valve component described in the present invention is sourced from a pneumatic generator, which is installed at the designated hole position of the toilet. The pneumatic generator can select mechanical air pumps for air supply, or electric air pumps for air supply, or a combination of mechanical and electric air pumps for air supply, to achieve the integration of mechanical and electrical functions.

[0008] The water output of the pneumatically controlled hydraulic valve component is connected in series through a water delivery pipe to an incremental water replenisher and a water spraying component; the water spraying component is installed at the toilet flushing opening; the incremental water replenisher is arranged at the bottom of the water tank. The incremental water replenisher generates a Venturi effect, and the incremental water flow is connected through the water delivery pipe to the water spraying component and sprayed onto the toilet flushing surface for flushing; there is a water diversion fork at the water inlet of the incremental water replenisher and the nozzle. While water is flowing through, a stream of water flows from the water diversion fork into the water delivery pipe and enters the hydraulic drainage component through a one-way valve. The water pressure pushes the piston to overcome the spring pressure, lifting the overflow conduit to drive the drain valve and opening the drain port to achieve drainage.

[0009] In summary, the sunken water tank flushing device described in the present invention can meet the various technical requirements for flushing a sunken water tank toilet even under low water pressure conditions; at the same time, when the hydraulic drainage component is not working statically, the drain valve is tightly pressed against the drain port by the spring preload to achieve water sealing, without dripping, leaking, or backflow. This structure can effectively prevent fecal sewage from flowing back from the drain port into the storage water tank when the toilet drain is blocked, causing pollution to the storage water tank. Description of the Drawings

[0010] Figure 1 is the assembly combination schematic diagram of each component of the present invention

[0011] Figure 2 is the schematic diagram of the operating states of each component of the present invention

[0012] Figure 3 is the schematic diagram of the water output operating condition of the pneumatically controlled hydraulic valve component of the present invention

[0013] Figure 4 is the schematic diagram of the pneumatically controlled hydraulic valve component of the present invention restoring to the static state

[0014] Figure 5 is the schematic diagram of the drainage operating condition of the hydraulic drainage component of the present invention

[0015] Figure 6 is the schematic diagram of the hydraulic drainage component of the present invention restoring to the static state

[0016] Figure 7 is the schematic diagram of the operating conditions of the incremental water replenisher and the water spraying component of the present invention

[0017] Explanation of Drawing Numbers

[0018] 1 Double-inlet main body 2 Water tank inlet component 3 Pneumatically controlled hydraulic valve component 4 Air pressure generator 4A Mechanical air pump 4B Electric air pump 5A Water delivery pipe 5B Water delivery pipe 5C Water delivery pipe 6 Incremental water replenisher 7 Spraying component 8 Check valve 9 Hydraulic drainage component 10A Air delivery pipe 10B Air delivery pipe 301 Air inlet 302 Check valve disc 303 Air chamber 304 Pilot hole seal ring 305 Pilot hole 306 Air leakage adjustment screw 307 T-shaped push rod 308 Spring 309 Pneumatically controlled hydraulic valve 310 Sealing leather cup 601 Water distribution fork 602 Inlet of incremental water replenisher 603 Outlet 604 Nozzle 605 Spraying port 901 Inlet 902 gland 903 Piston 904 Guide sleeve 905 Overflow conduit 906 Drainage adjustment screw 907 Drain valve 908 Drain port 909 Drain seat 910 Spring 911 Main body of piston chamber Detailed implementation mode

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation modes, which form a part of the present invention. The schematic illustration of the present invention...

[0020] The embodiments and their descriptions explain the invention and do not constitute an improper limitation to the present invention.

[0021] Now in combination with Figure 1 、 Figure 7 The present invention will be further described. A sunken water tank flushing device of the present invention includes: a double-inlet main body 1, a water tank inlet component 2, a pneumatically controlled hydraulic valve component 3, a pressure generator 4, an incremental water replenisher 6, a spraying component 7, a check valve 8, a hydraulic drainage component 9, a water delivery pipe 5A, a water delivery pipe 5B, a water delivery pipe 5C, an air delivery pipe 10A, and an air delivery pipe 10B which are connected and communicated. Two water supply valves are arranged in parallel on the double-inlet main body 1: a water tank inlet component 2 and a pneumatically controlled hydraulic valve component 3. The water tank inlet component 2 is responsible for supplying water to the water tank and controlling the water storage height of the water tank; the air inlet 301 of the pneumatically controlled hydraulic valve component 3 is connected to the air pressure generator 4 through the air delivery pipe 10A and the air delivery pipe 10B. The air pressure generator 4 is installed at the set hole position of the toilet, and the air pressure generator 4 can select to supply air by a mechanical air pump 4A or an electric air pump 4B or supply air by using both the mechanical air pump 4A and the electric air pump 4B; the pneumatically controlled hydraulic valve component 3 discharges water when pressurized, and the water outlet of the pneumatically controlled hydraulic valve component 3 is connected to supply water to the incremental water replenisher 6 through the water delivery pipe 5A. The incremental water replenisher 6 is arranged at the bottom of the water tank, and the incremental water replenisher 6 generates a "Venturi effect" to achieve incremental water replenishment; the water flow flows into the spraying component 7 through the water delivery pipe 5B and is sprayed onto the flushing surface of the toilet through the adjustable spraying port 605. The spraying component 7 is installed at the flushing port of the toilet; a water distribution fork 601 is arranged between the inlet 602 of the incremental water replenisher 6 and the nozzle 604 and is connected in series with the check valve 8 and the hydraulic drainage component 9 through the water delivery pipe 5C to provide power for the hydraulic drainage component 9 to drain water.

[0022] Now in combination with Figure 2 , Figure 3 , Figure 5 the present invention will be further described. The dual-inlet main body 1 introduces water and supplies water to the water tank inlet component 2. The water flows into the water tank until the water level reaches a certain height and then the water supply stops. The pneumatic-hydraulic valve component 3 connected to the dual-inlet main body 1 (referencing the patent "Pneumatic-hydraulic valve multi-functional actuator device", patent number: ZL201720114686.6) is supplied with air by the air pressure generator 4. The air pressure generator 4 can select to supply air by the mechanical air pump 4A or the electric air pump 4B or supply air by both the mechanical air pump 4A and the electric air pump 4B. The gas is input into the pneumatic-hydraulic valve component 3 through the air delivery pipe 10A and the air delivery pipe 10B, and enters the air chamber 303 through the check valve piece 302 at the air inlet 301. The pressurized gas pushes the sealing leather cup 310 and the T-shaped push rod 307 to overcome the pressure of the spring 308 and push open the pilot hole sealing ring 304, and the pneumatic-hydraulic valve 309 is opened. The pressurized water flow passes through the water delivery pipe 5A and flows into the incremental water replenisher 6. One water flow passes through the water delivery pipe 5C and the check valve 8 from the water distribution fork 601 and enters the hydraulic drainage component 9. The water pressure lifts to overcome the pressure of the spring 910 between the piston 903 and the gland 902, drives the overflow conduit 905 and the drain valve 907 to lift along the guide sleeve 904, opens the drain port 908, discharges the water stored in the water tank, and flushes the toilet; at the same time, another water flow with tap water pressure flows through the nozzle 604 in the incremental water replenisher 6 (referencing the patent "Jet incremental water replenishment device", patent number: ZL201220064635.4), the water flow speed increases, generating the Venturi effect, and the jet water flow squeezes the water stored in the water tank into the water outlet 603 together, and through the water delivery pipe 5B, the water flow passes through the water spraying component 7 and sprays out from the adjustable water spraying port 605 to wash the four walls of the toilet.

[0023] Now in combination with Figure 4 the present invention will be further described. A check valve piece 302 is provided at the air inlet 301 of the air chamber 303 of the pneumatic-hydraulic valve component 3, and the gas can only enter and not exit. A pressure relief adjustment screw 306 is provided in the air chamber 303 of the pneumatic-hydraulic valve component 3, and the pressurized gas in the air chamber 303 can only be discharged from the pressure relief adjustment screw 306. Waiting for the pressurized gas in the air chamber 303 to be discharged, the elastic force of the spring 308 resets the T-shaped push rod 307, drives the pilot hole sealing ring 304, closes the pilot hole 305, and then the pneumatic-hydraulic valve 309 closes and the water supply stops. From the above structure, it can be seen that the water outlet time of the pneumatic-hydraulic valve component 3 can be set by the pressure relief adjustment screw 306.

[0024] Now in combination with Figure 6The present invention will be further described. The hydraulic drainage component 9 of the present invention is composed of a piston chamber main body 911, a drainage seat 909, a piston 903, a spring 910, a gland 902, and a drainage valve 907. The piston chamber main body 911 is seated on the drainage seat 909. A guide sleeve 904 is provided at the center of the piston chamber main body 911. There is an overflow conduit 905 that is slidably fitted in the guide sleeve 904. A piston 903 is provided on the overflow conduit 905. A drainage valve 907 is provided at the bottom end of the overflow conduit 905. A spring 910 is provided between the piston 903 and the gland 902. The pressure of the spring 910 presses the drainage valve 907 tightly against the drainage port 908 through the overflow conduit 905. Further description is made on the hydraulic drainage component 9 returning to the static state: When the pneumatic control hydraulic valve component 3 stops supplying water and the water delivery pipe 5A loses pressure, at this time, the piston 903 of the hydraulic drainage component 9 drops and resets along the guide sleeve 904 under the pressure of the spring 910. Further explanation is that the water in the piston 903 chamber cannot flow back from the check valve 8 to the incremental water replenisher 6 and enter the water tank. The water in the piston 903 chamber can only be discharged through the drain adjustment screw 906. The drain adjustment screw 906 can adjust the drainage flow rate and control the drainage time until the drainage valve 907 returns to its original position and closes the drainage port 908. As can be seen from the above structure, the drainage flow rate of the water tank can be set by the drain adjustment screw 906 to realize the time for the drainage valve 907 to open and drain water, and quantitative drainage is achieved.

[0025] The above is only a preferred embodiment of the present invention and is not used to limit the scope of implementation of the present invention. Therefore, any changes or modifications made in accordance with the claims and the description of the present invention shall fall within the scope covered by the patent of the present invention.

Claims

1. A sunken water tank flushing device, characterized in that: It includes a dual-inlet main body, a water tank inlet component, a pneumatically controlled hydraulic valve component, a pneumatic generator, an incremental water replenisher, a water spraying component, a check valve, a hydraulic drainage component, a water delivery pipe, and an air delivery pipe. Each component is connected and composed by the water delivery pipe and the air delivery pipe; two water supply valves are arranged in parallel on the dual-inlet main body: the water tank inlet component and the pneumatically controlled hydraulic valve component; the water tank inlet component is responsible for supplying water to the water tank and controlling the water storage height of the water tank. The air inlet of the pneumatically controlled hydraulic valve component is connected to the pneumatic generator through the air delivery pipe. The pneumatic generator is installed at the set hole position of the toilet. The pneumatic generator can select mechanical air pump air supply, electric air pump air supply, or a combination of mechanical air pump and electric air pump for air supply; when the pneumatically controlled hydraulic valve component is pressurized, it drains water. The water outlet of the pneumatically controlled hydraulic valve component is connected in series to the incremental water replenisher and the water spraying component through the water delivery pipe. The incremental water replenisher is arranged at the bottom of the water tank to generate the Venturi effect to achieve incremental water replenishment; the water flow flows into the water spraying component through the water delivery pipe and is sprayed onto the flushing surface of the toilet through the adjustable water spraying port for flushing. The water spraying component is installed on the water spraying hole of the toilet; the hydraulic drainage component is located on the toilet drainage port. A water distribution fork is arranged between the water inlet of the incremental water replenisher and the nozzle and is connected in series to the check valve and the hydraulic drainage component through the water delivery pipe to provide power drainage for the hydraulic drainage component; The hydraulic drainage component is composed of a piston chamber main body, a drainage seat, a piston, a spring, a gland, and a drainage valve; the piston chamber main body is located on the drainage seat. A guide sleeve is provided in the center of the piston chamber main body. There is an overflow conduit that can slide and cooperate in the guide sleeve. The piston is provided on the overflow conduit. The drainage valve is provided at the bottom end of the overflow conduit. The spring is provided between the piston and the gland. The pressure of the spring presses the drainage valve tightly against the drainage port through the overflow conduit.

2. A sunken water tank flushing device according to claim 1, characterized in that: The pneumatically controlled hydraulic valve component is a device that realizes opening and closing by using gas pressure. An air inlet and a pressure relief adjustment screw are provided on the air chamber of the pneumatically controlled hydraulic valve component. A check valve disc that only allows gas to enter and not exit is provided on the air inlet. The pressurized gas in the air chamber can only be discharged from the pressure relief adjustment screw.

3. A sunken water tank flushing device according to claim 1, characterized in that: The hydraulic drainage component is provided with a water discharge adjustment screw, and the water in the piston chamber is discharged from the water discharge adjustment screw.

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