Water pump flushing valve

Abstract

According to the water pump flushing valve, a water pump is arranged, a piston and a water baffle are arranged in a valve body shell, the power of the water pump is used for increasing the impact force generated when water in a water tank is discharged outwards to flush a closestool, and the cleanliness during closestool cleaning is improved; in addition, the water baffle is controlled to move up and down in the valve body shell through the water amount of the water tank and the air pressure in the valve body shell, the flushing ring water outlet and the flushing water outlet are opened at different times, multiple electromagnetic valves do not need to be arranged, the production cost can be saved, and the reliability is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of intelligent toilets, and in particular relates to a water pump flushing valve. Background Art

[0002] As people's living standards improve, smart toilets are becoming more and more popular because they have functions such as automatic flushing and toilet seat heating. Specifically, smart toilets are provided with two water outlets, one is the flushing ring outlet, and the other is the flushing outlet. The flushing ring outlet can flush the inner wall of the toilet and flush the dirt to the bottom of the toilet. The flushing outlet flushes the bottom of the toilet and flushes all the dirt in the toilet into the sewer. Specifically, the existing smart toilets have several flushing methods:

[0003] (1) For the style without water tank, a solenoid valve is set to connect with the external water pipe. When the solenoid valve is opened, the pressure of the tap water is used to control the flushing. The disadvantage is that when the pressure of the tap water is very low, the flushing force is small and the flushing is not clean. In addition, multiple solenoid valves need to be set to control the opening or closing of the flushing ring outlet and the flushing outlet respectively. Setting multiple solenoid valves leads to high costs;

[0004] (2) The toilet has a built-in water tank, and a solenoid valve and a pressurizing device need to be installed in the built-in water tank. The solenoid valve controls the opening or closing of the water tank, and the pressurizing device pressurizes the water in the water tank to increase the impact of the water. However, currently, toilets with built-in water tanks need to be equipped with both a solenoid valve and a pressurizing device. The large number of parts leads to a high cost, and the probability of failure increases with the large number of parts, resulting in low reliability of the smart toilet. At the same time, multiple solenoid valves are also required to control the flushing ring outlet and the flushing water outlet respectively, resulting in high costs. Summary of the invention

[0005] (I) Purpose of the invention

[0006] In order to overcome the above shortcomings, the purpose of the present invention is to provide a water pump flush valve to solve the technical problems that the existing smart toilets with built-in water tanks have high manufacturing costs, a large number of parts and components, and an increased probability of failure, resulting in low reliability.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the technical solutions provided by this application are as follows:

[0009] A water pump flush valve, applied to a water tank of a toilet, comprises: a valve body shell, a flush ring water outlet and a flushing water outlet are arranged on the upper and lower sides of the valve body shell, a pressure relief hole is opened on the top, a sealing member hinged to the top of the valve body shell, a buoy hinged to the end of the sealing member, which can float upward when water enters the water tank and prompt the sealing member to swing downward to seal the pressure relief hole, a water pump arranged at the bottom of the valve body shell and with one end extending into the interior of the valve body shell, a piston arranged in the interior of the valve body shell and matching the diameter of the valve body shell, a water baffle plate vertically arranged in the valve body shell and connected to the piston, wherein the water baffle plate initially blocks the flushing water outlet and opens the flush ring The water outlet enables the water pump to discharge the water from the water tank into the valve body shell from the flushing ring outlet when the water pump is pumped into the valve body shell, and after a predetermined part of the water in the water tank is pumped away, the float descends to drive the blocking member to swing upward to open the pressure relief hole, and then moves upward under the drive of the piston to block the flushing ring outlet and open the flushing water outlet, so that the water pumped by the water pump can be discharged from the flushing water outlet, and also includes: a return spring arranged between the top of the valve body shell and the piston and having two ends respectively abutting against the top of the valve body shell and the piston, which can be squeezed when the piston moves upward and drive the piston to descend after the water pump stops pumping water so that the water baffle again blocks the flushing water outlet and opens the flushing ring outlet;

[0010] The present application sets a water pump, and sets a piston and a water baffle inside the valve body shell. When the water tank is full of water, the float rises, driving the sealing member to swing downward to block the pressure relief hole, so that the gas inside the valve body shell cannot be discharged and the piston cannot move upward. The water coming in from the water pump can only enter the flushing ring water outlet to discharge water and perform a flushing action on the inner wall of the toilet. As the water in the water tank is gradually pumped into the valve body shell by the water pump, the water level in the water tank will drop. At this time, the float falls, driving the sealing member to swing upward, the pressure relief hole is opened, and the piston is pushed upward by the water pump. At the same time, it drives the water baffle plate to move upward, and the flushing ring water outlet is blocked by the water baffle plate. At this time, the flushing outlet is opened, and the water pump pumps water into the valve body. The water inside the valve body shell will be discharged from the flushing outlet to flush the bottom of the toilet. When the water pump stops working, the piston moves downward under the action of the reset spring to reset. When the water tank is full of water again, the float floats again and returns to the initial state to complete a flushing cycle. The present application sets a water pump and uses the power of the water pump to increase the impact force when discharging the water in the water tank to flush the toilet, thereby improving the cleanliness of the toilet. In addition, the water amount in the water tank and the air pressure inside the valve body shell are used to control the water baffle to move up and down inside the valve body shell, opening the flushing ring outlet and the flushing outlet at different times. There is no need to set up multiple solenoid valves, which can save production costs and improve reliability.

[0011] In some embodiments, it also includes: a water replenishment pipe port connected to the flushing outlet and connected to the water replenishment pipe, which can replenish water to the bottom of the toilet after the flushing outlet completes flushing;

[0012] After flushing is completed at the flush outlet, water is replenished to the bottom of the toilet through the water replenishment pipe, and the bottom of the toilet can be blocked to prevent the odor in the toilet sewer from being emitted outward through the toilet.

[0013] In some embodiments, a water guide plate with a right-angle structure and an opening facing the flushing outlet is provided at a position corresponding to the water supply pipe opening inside the flushing outlet;

[0014] Optimize the shape of the water guide plate to prevent water from flowing back into the valve body shell when replenishing water, affecting the air pressure inside the valve body shell and affecting the effect of flushing the toilet.

[0015] In some embodiments, the piston includes a piston head that matches the diameter of the valve body shell and a piston rod connected below the piston head, wherein the piston rod is connected to the water baffle;

[0016] In some embodiments, the piston rod is protruded to form a plurality of plug posts, and the water retaining plate is provided with a plurality of connecting sleeves for the plug posts to be inserted;

[0017] The water baffle plate and the piston head are assembled by inserting the plug post into the connecting sleeve, which is convenient to assemble.

[0018] In some embodiments, it further comprises: an elastic pressing member in an arc-shaped structure, one end of which is connected to the piston rod, and the other end of which abuts against the water baffle plate to press the water baffle plate onto the inner side wall of the valve body shell;

[0019] By arranging an elastic pressing piece to abut the water baffle plate, the plug column and the connecting sleeve can slide against each other after being inserted, so that the water baffle plate can be pressed against the inner wall of the valve body shell, and the gap between the water baffle plate and the inner wall of the valve body shell can be reduced, so as to prevent water entering the interior of the valve body shell from seeping out from the gap between the water baffle plate and the inner wall of the valve body shell and causing water leakage.

[0020] In some embodiments, the upper end of the piston body and the upper end of the valve body shell form a piston cavity, wherein a water passage is provided through the piston body, so that water entering the valve body shell flows into the piston cavity through the water passage;

[0021] When the water pump is turned on, part of the water entering the valve body shell will enter the piston cavity through the water passage, which can prevent the piston body from compressing the air and driving the water baffle to move upward a short distance, resulting in the flushing outlet below not being completely sealed and leaking.

[0022] In some embodiments, two third guide rails are symmetrically arranged on both sides of the flushing ring outlet and the flushing water outlet, respectively slidingly cooperating with the edges of both sides of the water baffle;

[0023] The third guide rail is provided to ensure the directionality of the water retaining plate when it moves up and down, thereby preventing the water retaining plate from being offset when moving, resulting in failure to tightly block the flushing ring water outlet or the flushing water outlet and causing water leakage.

[0024] In some embodiments, the blocking member includes: a swing cover hinged on both sides to the top of the valve body shell and a water-sealing rubber nail protruding from the lower end surface of the swing cover and capable of being embedded in or removed from the pressure relief hole.

[0025] In some embodiments, it further comprises: an adjusting screw which is arranged vertically and connected to the end of the swing cover, and the buoy is threadedly connected to the adjusting screw;

[0026] The buoy will float only when the water entering the water tank reaches the position of the buoy. The height of the buoy can be adjusted by adjusting the position of the buoy on the adjusting screw to adapt to different water inflows. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the water pump flush valve of the present invention;

[0028] Figure 2 It is a cross-sectional view of the water pump flush valve of the present invention when water is discharged from the flushing ring outlet;

[0029] Figure 3 is a cross-sectional view of the water pump flush valve of the present invention when water is discharged from the flush outlet;

[0030] Figure 4 is a cross-sectional view of a preferred embodiment of a water pump flush valve of the present invention;

[0031] Figure 5 It is a structural schematic diagram of a water retaining plate in a water pump flush valve of the present invention;

[0032] Figure 6 It is a structural schematic diagram of a piston in a water pump flush valve of the present invention;

[0033] Figure 7 It is a diagram of the assembly state of the float and the blocking member in the water pump flush valve of the present invention;

[0034] Figure 8 It is a cross-sectional view of the water pump flush valve of the present invention after being placed in reverse.

[0035] Reference numerals:

[0036] 1. Valve body shell; 101. Flushing water outlet; 102. Flushing ring water outlet; 103. Guide rail; 104. Top cover; 105. Pressure relief hole; 2. Piston; 201. Piston head; 202. Piston rod; 2021. Insert column; 2022. Elastic pressing part; 2023. First guide slide block; 2024. Water passage; 3. Blocking part; 301. Water sealing nail; 302. Articulated column; 4. Float; 5. Adjusting screw; 6. Water pump; 7. Reset spring; 8. Water baffle; 801. Connecting sleeve; 802. Third guide slide block; 9. Quarter nut; 10. Water supply pipe outlet; 11. Water guide plate; 12. Piston cavity. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0038] A water pump flush valve provided by the present invention comprises: a water tank applied to a toilet, comprising: a valve body shell 1, a flushing ring water outlet 102 and a flushing water outlet 101 are arranged on the upper and lower sides of the valve body shell 1, a pressure relief hole 105 is opened on the top, a sealing member 3 hinged to the top of the valve body shell 1, a float 4 hinged to the end of the sealing member 3, which can float upward when water enters the water tank and prompt the sealing member 3 to swing downward to block the pressure relief hole 105, a water pump 6 arranged at the bottom of the valve body shell 1 and with one end extending into the valve body shell 1, a piston body 2 arranged in the valve body shell 1 and matching the diameter of the valve body shell 1, and a water baffle 8 vertically arranged in the valve body shell 1 and connected to the piston body 2, wherein the water baffle 8 initially blocks the flushing water outlet 101 and opens the flushing ring water outlet 102, so that the water pump 6 can pump the water in the water tank into the valve body shell 1 and discharge it from the flushing ring outlet 102, and after a predetermined part of the water in the water tank is pumped away, the float 4 can descend and drive the blocking member 3 to swing upward to open the pressure relief hole 105, and then move upward under the drive of the piston body 2 to block the flushing ring outlet 102 and open the flushing water outlet 101, so that the water pumped by the water pump 6 can be discharged from the flushing water outlet 101, and also includes: a return spring 7 arranged between the top of the valve body shell 1 and the piston body 2 and with both ends respectively abutting against the top of the valve body shell 1 and the piston body 2, which can be squeezed when the piston body 2 moves upward and drive the piston body 2 to descend after the water pump 6 stops pumping water, so that the water retaining plate 8 blocks the flushing water outlet 101 again and opens the flushing ring outlet 102.

[0039] Specifically, a top cover 104 is provided on the top of the valve body shell 1, a pressure relief hole 105 is opened on the top cover 104 and is connected to the valve body shell 1, and the sealing member 3 includes: a swing cover and a water-sealing rubber nail 301 protruding from the lower end surface of the swing cover, hinge columns 302 are respectively provided on both sides of the swing cover, which are hinged to the top cover 104, a force arm is provided at the rear end of the swing cover, and the float 4 is provided on the adjusting screw 5, and the upper end of the adjusting screw 5 is hinged to the force arm of the swing cover.

[0040] Specifically, the water pump flush valve of the present application is installed in the built-in water tank of the smart toilet and is fixed to the water tank wall by a quarter nut 9. Specifically, the height of the water pump 6 can be adjusted so that the water suction port is as close to the bottom of the water tank as possible, and the direction of the water pump 6 can also be adjusted. When adjusted to a suitable position, the water pump 6 is locked with the valve body housing 1 by a locking nut.

[0041] Specifically, the flushing ring outlet 102 is connected to the flushing ring nozzle of the toilet with a hose, and the flushing water outlet 101 is connected to the flushing nozzle of the toilet with a hose. Specifically, the flushing ring nozzle flushes the inner wall of the toilet, and the flushing nozzle flushes the bottom of the toilet.

[0042] Specifically, the water pump 6 is connected to an external control circuit, and a water inlet valve is provided in the toilet water tank. External tap water enters the water tank through the water inlet valve. When the water is full, the pressure relief hole 105 is blocked by the water sealing nail 301, and the air in the piston body 2 cavity cannot be released, and the piston body 2 cannot move upward. Since the water baffle 8 only blocks the flushing outlet 101 and does not block the flushing ring outlet 102 at the beginning, the water coming in from the water pump 6 can only enter the flushing ring outlet 102 to flush the toilet flushing ring. As the water in the water tank is continuously pumped into the valve body shell 1 by the water pump 6, the water level in the water tank will drop. At this time, the float 4 falls down, and the swing cover is driven to swing upward by adjusting the screw 5. The water sealing nail 301 comes out of the pressure relief hole 105, and the pressure relief hole 105 is opened. The air exhaust pressure at the top of the valve body shell 1 drops, and the piston body 2 is driven to move upward by the water pressure of the water pumped in by the water pump 6. While the piston body 2 moves upward, it drives the water baffle plate 8 to move upward. The water baffle plate 8 blocks the flushing ring water outlet 102, and opens the flushing outlet 101. At this time, the water pumped in by the water pump 6 will flow out from the flushing outlet 101, and the bottom of the toilet will be flushed. When the piston body 2 moves upward, the reset spring 7 is compressed. Specifically, when the water in the water tank is pumped out by the water pump 6, the water pump 6 stops pumping water, the water pressure at the lower end of the valve body shell 1 decreases, and the piston body 2 moves downward to reset under the action of the reset spring 7. The piston body 2 drives the water baffle plate 8 to move downward again to cover the flushing water outlet 101 and open the flushing ring water outlet 102. When the water inlet valve in the water tank is opened to let water in, the float 4 floats, causing the swing cover to swing downward, and the water-sealing rubber nail 301 blocks the pressure relief hole 105 again, returning to the initial state, and completing a flushing cycle.

[0043] Specifically, the bottom of the toilet is connected to the sewer, and the connection between the sewer and the bottom of the toilet forms a U-shaped structure.

[0044] In the present application, a water replenishment pipe port 10 is provided on the flushing water outlet 101, and the water replenishment pipe port 10 is connected to the water replenishment pipe, and the water replenishment pipe is connected to the water inlet valve in the water tank, and the water inlet valve is connected to the external tap water. When the flushing water outlet 101 completes the flushing water flow into the toilet water tank, the water inlet valve fills water into the water tank. At the same time, the water can be discharged into the bottom of the toilet through the water replenishment pipe to seal the U-shaped structure of the sewer, thereby preventing the odor of the sewer from emitting into the toilet.

[0045] Preferably, the present application provides a right-angled water guide plate 11 at a position inside the flush outlet 101 corresponding to the water replenishment pipe mouth 10, and the opening of the water guide plate 11 faces the opening direction of the flush outlet 101, so that the replenished water will flow along the water guide plate 11 through the flush outlet 101 into the toilet, and will not flow back into the valve body shell 1.

[0046] Specifically, the piston body 2 includes: a piston head 201 whose diameter matches that of the valve body shell 1 and a piston rod 202 connected below the piston head 201 , wherein the piston rod 202 is connected to the water baffle 8 .

[0047] Specifically, a plurality of plug posts 2021 are protruded from the piston rod 202 , and a plurality of connecting sleeves 801 for the plug posts 2021 to be inserted into are provided on the water retaining plate 8 .

[0048] Furthermore, the present application provides an elastic pressing piece 2022 with an arc-shaped structure on the water baffle plate 8, one end of which is connected to the piston rod 202, and the other end abuts against the water baffle plate 8. Since the piston rod 202 and the water baffle plate 8 are movably connected, when the elastic pressing piece 2022 presses and abuts against the water baffle plate 8, the water baffle plate 8 can be pressed against the inner wall of the valve body shell 1, thereby avoiding a large gap between the water baffle plate 8 and the inner wall of the valve body shell 1, which may cause water leakage.

[0049] Preferably, a first guide rail 103 is vertically arranged on the inner side wall of the valve body shell 1, and slidably cooperates with the first guide sliders 2023 arranged on both sides of the piston rod 202, so that the piston body 2 can move vertically up and down.

[0050] Preferably, the present application provides a second guide rail 103 slidably matched with the buoy 4 on the outer side of the valve body shell 1, and a second guide slider is provided on the buoy 4 to slidably match with the second guide rail 103 to ensure that the buoy 4 can move vertically up and down.

[0051] Preferably, the present application sets two third guide rails 103 on both sides of the flushing ring outlet 102 and the flushing water outlet 101, and sets third guide sliders 802 slidably matched with the third guide rails 103 on both sides of the water retaining plate 8 to ensure that the water retaining plate 8 can move vertically up and down.

[0052] See also Figure 4 Specifically, a piston cavity 12 is formed between the upper end of the piston body 2 and the upper end of the valve body shell 1. Preferably, the present application penetrates the piston body 2 to form a water passage 2024.

[0053] Specifically, if the piston chamber 12 is full of air, even if the pressure relief hole 105 is not opened, after the water pump 6 is turned on, the piston body 2 will compress the air in the piston chamber 12 under the action of water pressure and will still move up a short distance, driving the water baffle 8 to move up a short distance, resulting in the flushing outlet 101 below not being completely sealed and leaking. In this preferred embodiment, by opening a water passage 2024, a part of the water entering the valve body housing 1 will enter the piston chamber 12 along the water passage 2024, preventing the piston chamber 12 from moving up. Only when the pressure relief hole 105 is opened, the piston body 2 will move, thereby ensuring the tightness of the water pump flushing valve.

[0054] Specifically, the diameter of the water passage 2024 needs to be smaller than the diameter of the pressure relief hole 105 to prevent excessive water flow into the piston chamber 12 and cause the water sealing nail 301 to be washed open.

[0055] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A water pump flush valve, characterized in that: A water tank applied to a toilet comprises: a valve body shell (1), wherein the valve body shell (1) is provided with a flushing ring water outlet (102) and a flushing water outlet (101) on the upper and lower sides, and a pressure relief hole (105) is opened on the top; a sealing member (3) hinged to the top of the valve body shell (1); a buoy (4) hinged to the end of the sealing member (3), which can float upward when water enters the water tank and cause the sealing member (3) to swing downward to seal the pressure relief hole (105); and a buoy (4) is arranged on the valve body shell (1). A water pump (6) is provided at the bottom of the valve housing (1) and one end of which extends into the interior of the valve housing (1); a piston body (2) is arranged inside the valve housing (1) and has a diameter matching that of the valve housing (1); and a water baffle (8) is vertically arranged inside the valve housing (1) and connected to the piston body (2); wherein initially, the water baffle (8) blocks the flushing water outlet (101) and opens the flushing ring water outlet (102), so that the water pump (6) can flush the water. When water in the water tank is pumped into the valve body shell (1), it can be discharged from the flushing ring water outlet (102), and after a predetermined portion of the water in the water tank is pumped away, the float (4) descends and drives the blocking member (3) to swing upward to open the pressure relief hole (105), and then, driven by the piston body (2), it moves upward to block the flushing ring water outlet (102) and open the flushing water outlet (101), so that the water pumped into the water pump (6) can be discharged from the flushing water outlet (101). 101) discharge, and also includes: a return spring (7) arranged between the top of the valve body shell (1) and the piston body (2) and with its two ends respectively abutting against the top of the valve body shell (1) and the piston body (2), which can be squeezed when the piston body (2) moves upward and drive the piston body (2) to descend after the water pump (6) stops pumping water, so that the water baffle (8) covers the flushing water outlet (101) again and opens the flushing ring water outlet (102).

2. The water pump flush valve according to claim 1, characterized in that: Also includes: The water replenishment pipe opening (10) communicated with the flushing water outlet (101) is connected to a water replenishment pipe, and can replenish water to the bottom of the toilet after flushing is completed at the flushing water outlet (101).

3. The water pump flush valve according to claim 2, characterized in that: A water guide plate (11) with a right-angle structure and an opening facing the opening direction of the flushing water outlet (101) is arranged inside the flushing water outlet (101) at a position corresponding to the water replenishment pipe opening (10).

4. The water pump flush valve according to claim 1, characterized in that: The piston body (2) comprises a piston head (201) whose diameter matches that of the valve body shell (1) and a piston rod (202) connected below the piston head (201), wherein the piston rod (202) is connected to the water baffle (8).

5. The water pump flush valve according to claim 4, characterized in that: The piston rod (202) is protruded to form a plurality of plugging posts (2021), and the water retaining plate (8) is provided with a plurality of connecting sleeves (801) for the plugging posts (2021) to be inserted.

6. The water pump flush valve according to claim 4, characterized in that: Also includes: An elastic pressing member (2022) having an arc-shaped structure has one end connected to the piston rod (202) and the other end abutting against the water baffle plate (8) so as to press the water baffle plate (8) onto the inner wall of the valve body shell (1).

7. The water pump flush valve according to claim 1, characterized in that: The upper end of the piston body (2) and the upper end of the valve body shell (1) form a piston chamber (12), wherein a water passage (2024) is provided through the piston body (2) for water entering the valve body shell (1) to flow into the piston chamber (12) through the water passage (2024).

8. The water pump flush valve according to claim 1, characterized in that: Two third guide rails (103) symmetrically arranged on both sides of the flushing ring water outlet (102) and the flushing water outlet (101) are respectively slidably matched with the edges on both sides of the water baffle (8).

9. The water pump flush valve according to claim 2, characterized in that: The blocking member (3) comprises: a swing cover hinged on both sides to the top of the valve body shell (1), and a water-sealing glue nail (301) protruding from the lower end surface of the swing cover and capable of being embedded in or removed from the pressure relief hole (105).

10. The water pump flush valve according to claim 9, characterized in that: Also includes: An adjusting screw (5) is arranged vertically and has its upper end hinged to the swing cover, and the adjusting screw (5) is threadedly connected to the buoy (4).

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