Water supply filtering structure of pressure storage type flushing device

Abstract

The utility model discloses a water supply filtering structure of a pressure storage type flushing device, which comprises a water storage tank, a pressure storage component, a three-way joint and a filter screen, the pressure storage component is arranged in a water storage cavity of the water storage tank, water is quantitatively stored in the water storage cavity through the pressure storage component, the water inlet pressure during water inlet of the water storage tank is kept, and the filter screen is arranged on the three-way joint. A water passing opening is formed in the bottom end of the water storage tank, the three-way connector is arranged on the water passing opening, and the other two end connectors of the three-way connector are a water inlet end connector and a water outlet end connector of the water storage tank respectively. The filter screen is arranged between the pressure storage assembly and the water passing opening and used for filtering water entering the water storage cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of bathrooms, in particular to a water supply and filtering structure of a pressure storage type flushing device. Background Art

[0002] In recent years, smart toilets have gained market recognition and favor. The enormous market prospects have attracted numerous companies within the industry, including many large companies that have expanded across industries, transforming the design of existing toilets. The design concept of flush toilets has been particularly well-received and praised. However, the compact and sophisticated design of flush toilets has placed new demands on flushing mechanisms. This has led to the development of energy storage flush toilets, which break away from traditional high-level tank flushing methods. However, these products still present several structural challenges.

[0003] The existing pressure storage flushing device has a certain amount of pressure friction generated by the movement and displacement of the pressure storage piston in the pressure cylinder. At the same time, since the water storage tank is horizontally installed above the S-bend sewage pipe of the toilet, there is contact friction between the piston and the piston cavity wall. Therefore, there is a fear that particles in the water will settle at the bottom of the water storage cavity. When the piston moves, the particles will enter the piston sealing ring, accelerate the wear of the piston and the cylinder wall, cause water leakage, and shorten the service life of the flushing device. Utility Model Content

[0004] The purpose of the utility model is to provide a water supply and filtering structure of a pressure storage type flushing device to solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A water supply and filtration structure of a pressure storage flushing device includes a water storage tank, a pressure storage component, a three-way joint and a filter screen. The pressure storage component is arranged in the water storage chamber of the water storage tank. Water is quantitatively stored in the water storage chamber through the pressure storage component, and the water inlet pressure of the water storage tank is maintained when the water storage tank is filled with water, and is converted into a drainage pressure when the water storage tank is drained. A water outlet is provided at the bottom end of the water storage tank and the three-way joint is provided on the water outlet. The other two end joints of the three-way joint are respectively the water inlet end interface and the drainage end interface of the water storage tank. The filter screen is provided between the pressure storage component and the water outlet to filter the water entering the water storage chamber.

[0007] Preferably, the water inlet end of the water storage tank is connected to a water inlet pipe, and a one-way valve is provided on the water inlet pipe.

[0008] Preferably, the drainage end of the water storage tank is connected to a drainage pipe, and a drainage valve is provided on the drainage pipe.

[0009] Preferably, the pressure storage assembly includes a piston, a pressure storage spring and a guide rod. The guide rod is axially arranged in the water storage chamber of the water storage tank. A guide sleeve is provided at the center of the piston. The piston slides on the outside of the guide rod through the guide sleeve, and the piston divides the water storage chamber into two upper and lower chambers that do not flow into each other. The pressure storage spring is axially placed in the water storage tank and its two ends are pressed against the inner wall of the water storage chamber and the piston respectively.

[0010] Preferably, the filter screen is arranged below the piston, and the side wall of the filter screen is connected to the inner wall of the water storage chamber.

[0011] Preferably, the piston and the filter screen are both configured to have a trapezoidal structure.

[0012] After adopting the above technical solution, the utility model has the following advantages compared with the background technology:

[0013] The utility model provides a water supply and filtering structure of a pressure storage type flushing device, wherein a three-way joint is provided on the water outlet of the water storage tank, and the other two ends of the three-way joint are respectively provided as the water inlet interface and the drainage interface of the water storage tank, and a filter screen is provided between the piston and the water outlet to filter the water entering the water storage tank. When water enters the water inlet, particles in the water are blocked by the filter screen on the mesh, preventing the particles from entering the pressure storage component, affecting the operation of the pressure storage component, and accelerating the wear of the piston and the cylinder wall. When the drainage end is opened for drainage, the water in the water storage tank is discharged through the water outlet by the thrust of the pressure storage spring. At this time, the impurities intercepted on the filter screen leave the filter screen under the push of the water flow and are discharged through the drainage end of the three-way joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the water inlet state of Example 1 of the present utility model;

[0015] Figure 2 This is a schematic diagram of the drainage state structure of Example 1 of the utility model;

[0016] Figure 3 This is a structural diagram of Example 2 of the present utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] It should be noted that in the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are all based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element of the present invention must have a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0019] Example 1

[0020] Please refer to Figures 1 to 2 As shown, the utility model discloses a water supply and filtration structure of a pressure storage flushing device, including a water tank 1, a pressure storage component 2, a three-way joint 3 and a filter screen 4. The pressure storage component 2 is arranged in the water storage chamber 11 of the water tank 1 to store the water pressure when the water tank 1 is filled with water, and converts it into the drainage pressure when the water tank 1 is drained. The bottom end of the water tank 1 is provided with a water outlet 12 connected to the water storage chamber 11, and the water outlet 12 is provided with a three-way joint 3, and the other two end joints of the three-way joint 3 are respectively the water inlet end interface and the drainage end interface of the water tank 1. The filter screen 4 is arranged in the water storage chamber 11 and is located between the pressure storage component 2 and the water outlet 12 to filter impurities in the incoming water.

[0021] The water inlet end of the water storage tank 1 is connected to a water inlet pipe 5, on which a one-way valve 6 is provided. The one-way valve 6 closes when the external water pressure is lower than the pressure in the water storage chamber 11, to prevent the water in the water storage tank 1 from flowing back into the water inlet pipe 5.

[0022] The drainage end of the water storage tank 1 is connected to a drainage pipe 7 , and a drainage valve 8 is provided on the drainage pipe 7 for controlling the drainage of the water storage tank 1 .

[0023] Example 2

[0024] Please refer to Figure 3 As shown, the utility model discloses a water supply and filtration structure of a pressure storage flushing device, including a water tank 1 and a pressure storage component 2 arranged in the water tank 1. The pressure storage component 2 is arranged in the water storage cavity 11 of the water tank 1 to store the water pressure when the water tank 1 is filled with water, and convert it into the drainage pressure when the water tank 1 is drained.

[0025] The pressure storage assembly 2 includes a piston 21, a pressure storage spring 22 and a guide rod 23. The guide rod 23 is axially arranged in the water storage chamber 11. The piston 21 is slidably sleeved on the guide rod 23 up and down, and the outer wall of the piston 21 is tightly matched with the inner wall of the water storage chamber 11 during the sliding process. The inner wall of the guide port 215 of the piston 21 is tightly matched with the outer wall of the guide rod 23. The pressure storage spring 22 is axially placed in the water storage tank 1 and its two ends are respectively connected to the inner wall of the water storage chamber 11 and the piston.

[0026] The bottom end of the water storage tank 1 is provided with a water inlet 12 connected to the water storage chamber 11. A three-way joint 3 is provided on the water inlet 12, and the other two end joints of the three-way joint 3 are respectively the water inlet end interface 31 and the drainage end interface 32 of the water storage tank 1. A filter screen 4 is provided in the water storage chamber 11 and between the piston 21 and the water inlet 12. When water enters the water inlet end, impurities in the water are blocked on the mesh by the filter screen 4, preventing the impurities from entering the pressure storage component 2, grinding the piston 21 and the inner wall of the water storage chamber 11, affecting the operation of the piston 21, and improving the service life of the pressure storage component 2. When the drainage end is opened for drainage, the water in the water storage tank 1 is discharged through the water inlet 12 by the thrust of the pressure storage spring 22. At this time, the impurities intercepted on the filter screen 4 leave the filter screen 4 under the push of the water flow and are discharged through the drainage end of the three-way joint 3.

[0027] The top of the water tank 1 is provided with a water vapor hole 13 that communicates with the water storage chamber 11. When the water tank 1 is positioned horizontally at the rear end of the toilet, the water vapor hole 13 is located on the lower tank wall. This hole serves as a vent to expel air from the rear end of the water tank 1 when the water inlet piston 21 of the water tank 1 moves backward. It also serves as a drainage system to drain water from the rear end of the water tank 1 into the toilet bowl if the sealing structure of the piston 21 leaks.

[0028] The bottom of the water tank 1 is provided with a vent hole 14, which communicates with the water storage chamber 11. A vent switch is installed on the vent hole 14. When the water tank 1 is positioned horizontally at the rear end of the toilet, the vent hole 14 is located on the upper tank wall. When water enters the water tank 1, the vent switch opens, allowing air at the front end of the water tank 1 to escape through the vent hole 14, preventing air pressure from hindering the water inflow. The piston and filter are both designed as isosceles trapezoidal structures, with water inlets 12 located on the wall of the water tank 1 on either side of the isosceles trapezoid.

[0029] The water inlet end of the water storage tank 1 is connected to the water inlet pipe 5, on which a one-way valve is provided. The one-way valve closes when the external water pressure is lower than the pressure in the water storage chamber 11, thereby preventing the water in the water storage tank 1 from flowing back into the water inlet pipe 5.

[0030] The drainage end of the water storage tank 1 is connected to a drainage pipe 6 , and a drainage valve is provided on the drainage pipe 6 for controlling the drainage of the water storage tank 1 .

[0031] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A water supply and filtration structure for a pressure storage flushing device, characterized by: It includes a water storage tank, a pressure storage component, a three-way joint and a filter screen. The pressure storage component is arranged in the water storage chamber of the water storage tank. The water is quantitatively stored in the water storage chamber through the pressure storage component, and the water inlet pressure of the water storage tank is maintained when the water storage tank is filled with water, and is converted into a drainage pressure when the water storage tank is drained. A water outlet is opened at the bottom end of the water storage tank and the three-way joint is arranged on the water outlet. The other two end joints of the three-way joint are respectively the water inlet end interface and the drainage end interface of the water storage tank. The filter screen is arranged between the pressure storage component and the water outlet to filter the water entering the water storage chamber.

2. The water supply and filtration structure of the pressure storage flushing device according to claim 1, characterized in that: The water inlet end of the water storage tank is connected to a water inlet pipe, and a one-way valve is provided on the water inlet pipe.

3. The water supply and filtration structure of the pressure storage flushing device according to claim 1, characterized in that: The drainage end of the water storage tank is connected to a drainage pipe, and a drainage valve is provided on the drainage pipe.

4. The water supply and filtration structure of the pressure storage flushing device according to claim 1, characterized in that: The pressure storage assembly includes a piston, a pressure storage spring and a guide rod. The guide rod is axially arranged in the water storage chamber of the water storage tank. A guide sleeve is provided at the center of the piston. The piston slides on the outside of the guide rod through the guide sleeve, and the piston divides the water storage chamber into two upper and lower cavities that do not flow into each other. The pressure storage spring is axially placed in the water storage tank and its two ends are pressed against the inner wall of the water storage chamber and the piston respectively.

5. The water supply and filtration structure of the pressure storage flushing device according to claim 4, characterized in that: The filter screen is arranged below the piston, and the side wall of the filter screen is connected to the inner wall of the water storage cavity.

6. The water supply and filtration structure of the pressure storage flushing device according to claim 5, characterized in that: The piston and the filter screen are both arranged to have a trapezoidal structure.

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