Flushing device, flushing device control method and closestool

Abstract

The invention provides a flushing device, a flushing device control method and a closestool, the flushing device comprises a switching valve main body, a normal pressure waterway main body and a driver, the switching valve main body is provided with a pressure water inlet, a pressure main flushing water outlet and a pressure water outlet; a water passing cavity communicated with the pressure water inlet, the pressure main flushing water outlet and the pressure water outlet is formed in the switching valve body, a linkage switching assembly is arranged in the water passing cavity, and the driver is connected with the linkage switching assembly to control the linkage switching assembly to switch water outlet of the pressure main flushing water outlet or water outlet of the pressure water outlet. The water pump water pressure water path and the normal pressure water path are provided, the normal pressure water path has the water tank normal pressure water path and the tap water normal pressure water path at the same time, only one driver is matched with the linkage assembly, and the normal pressure water path can be opened in a linkage mode while the driver switches the water pump water pressure water path.

Description

Technical Field

[0001] This invention relates to the field of sanitary ware technology, specifically to a flushing device, a flushing device control method, and a toilet. Background Technology

[0002] Existing flushing systems use two electromagnetic pulse valves to control the tap water circuit to achieve the functions of brush ring-bottom main flush-brush ring water seal replenishment. However, this is greatly affected by water pressure, and the bottom main flush cannot replenish water in time to cover it during siphoning, resulting in loud noise from the exposed flushing water column.

[0003] Meanwhile, some flushing systems use a pump to draw water from the tank and then switch between the brush ring, the main bottom flush, and the brush ring water seal to replenish water by simply switching the motor. While this solves the water pressure problem, it still doesn't address the issue of not being able to replenish water in time during the siphoning of the main bottom flush. Also, since it relies solely on the pump for water supply, a high-power backup power supply is needed to power the pump during power outages, resulting in high costs. Alternatively, a high-power pump and a T-junction can be used to supply water to both the brush ring and the main bottom flush simultaneously, but high-power pumps are expensive.

[0004] In view of this, the inventors of this case conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Summary of the Invention

[0005] The first objective of this invention is to address the above-mentioned shortcomings by providing a flushing device with two water channels that can be switched by a single driver, thereby enabling multiple flushing modes.

[0006] The first solution adopted by the present invention to solve the technical problem is: a flushing device, including a switching valve body, a normal pressure water circuit body and a driver, wherein the switching valve body is provided with a pressure inlet, a pressure main flush outlet and a pressure outlet, and the switching valve body is provided with a water passage cavity communicating with the pressure inlet, the pressure main flush outlet and the pressure outlet, and the water passage cavity is provided with a linkage switching component, and the driver is connected to the linkage switching component to control the linkage switching component to switch the pressure main flush outlet or the pressure outlet to output water;

[0007] The main body of the atmospheric pressure water circuit is provided with an atmospheric pressure inlet, an atmospheric pressure outlet, and an atmospheric pressure main flush outlet. The main body of the atmospheric pressure water circuit is provided with a first back pressure switch for controlling the water output of the atmospheric pressure outlet, a second back pressure switch for controlling the water output of the atmospheric pressure main flush outlet, and a pressure relief mechanism for controlling the first back pressure switch and the second back pressure switch. The driver is connected to the pressure relief mechanism through a linkage switching component to control the pressure relief mechanism in a linkage manner.

[0008] Furthermore, in order to form a first back pressure structure to control the water intake at the atmospheric pressure inlet, the main body of the atmospheric pressure water circuit is provided with a back pressure chamber I, an inlet I connecting the atmospheric pressure inlet and the back pressure chamber I, and an outlet I. The first back pressure switch includes a back pressure pad I and a back pressure cover I. The back pressure pad I is disposed in the back pressure chamber I to block the inlet I and the outlet I. The back pressure cover I is sealed and installed on the back pressure chamber I. A pressure relief pipe I is provided on the back pressure cover I. The other end of the pressure relief pipe I is connected to the pressure relief mechanism.

[0009] Furthermore, in order to form a second back pressure structure to control the connection or disconnection between the atmospheric pressure inlet and the atmospheric pressure main flush outlet, the atmospheric pressure water circuit body is also provided with a back pressure chamber II, an inlet II, and an outlet II. The inlet II is connected to the atmospheric pressure inlet via a first back pressure switch, and the outlet II is connected to the atmospheric pressure main flush outlet. The second back pressure switch includes a back pressure pad II and a back pressure cover II. The back pressure pad II is disposed in the back pressure chamber II to block the inlet II and the outlet II. The back pressure cover II is sealed and installed on the back pressure chamber II. The back pressure cover II is provided with a pressure relief pipe II, and the other end of the pressure relief pipe II is connected to a pressure relief mechanism.

[0010] Furthermore, in order to form a linkage control structure, the atmospheric pressure inlet is connected to the atmospheric pressure main flush outlet, or connected to the atmospheric pressure outlet; a water replenishment chamber is provided on the rear side of the back pressure chamber II within the main body of the atmospheric pressure water circuit. The water replenishment chamber is connected to the atmospheric pressure inlet via the first back pressure switch, and the atmospheric pressure outlet is connected to the water replenishment chamber. A piston rod is connected to the back pressure pad II, and a water stop pad is provided at the other end of the piston rod and is movably installed in the water replenishment chamber. The piston rod is slidably installed within the main body of the atmospheric pressure water circuit so that the movement of the back pressure pad II can drive the piston rod to slide open or close the atmospheric pressure outlet.

[0011] Furthermore, in order to control the activity of the first back pressure switch and the second back pressure switch, the pressure relief mechanism includes a pressure relief rod I, a pressure relief piston I, a pressure relief rod II, a pressure relief piston II, and a pressure relief cover. The switching valve body is provided with a pressure relief port I and a pressure relief port II that are connected to the main pressure outlet. The pressure relief port I and the pressure relief port II are respectively connected to the first back pressure switch and the second back pressure switch. The pressure relief piston I and the pressure relief piston II are respectively sealed on the pressure relief port I and the pressure relief port II.

[0012] The pressure relief cover is installed on the switching valve body. The pressure relief rod I and pressure relief rod II are both rotatably installed on the pressure relief cover. One end of the pressure relief rod I and pressure relief rod II is connected to the pressure relief piston I and pressure relief piston II, respectively. The other end of the pressure relief rod I and pressure relief rod II is connected to the linkage assembly so that the linkage assembly controls the rotation of the pressure relief rod I and pressure relief rod II to drive the movement of the pressure relief piston I and pressure relief piston II, thereby controlling the movement of the first back pressure switch and the second back pressure switch.

[0013] Furthermore, in order to form a linkage control structure, the first back pressure switch and the second back pressure switch are controlled by controlling the pressure relief rod I and the pressure relief rod II; the linkage switching mechanism includes a linkage component and a switching component, the linkage component includes a linkage turntable, the linkage turntable is provided with an axially protruding drive boss, the driver is connected to the linkage turntable to drive the linkage turntable to rotate, thereby causing the drive boss to press or release the other end of the pressure relief rod I and the pressure relief rod II.

[0014] Furthermore, in order to switch the water outlet, a sealing ball is installed on a swing arm so that the swing arm can drive the sealing ball to move and ensure that the sealing ball is movable; the switching assembly includes a swing arm and a sealing ball, the swing arm is rotatably installed in the water passage cavity, the swing arm is provided with an outward-facing mounting cavity, the sealing ball is movably installed in the mounting cavity, the width of the mounting cavity is slightly larger than the diameter of the sealing ball, and the depth of the mounting cavity is larger than the diameter of the sealing ball so that the sealing ball can retract into the mounting cavity;

[0015] The main pressure outlet and the pressure outlet are located below the rotation path of the swing arm, so that when the sealing ball moves above the outlet with the swing arm, it falls and blocks the outlet under the action of gravity. The diameter of the main pressure outlet and the pressure outlet is smaller than the diameter of the sealing ball. The main pressure outlet and the pressure outlet are provided with inclined surfaces for cooperating with the sealing ball.

[0016] Furthermore, in order to rotatably install the rocker arm inside the switching valve body, connect the motor to the rocker arm, and ensure that water in the water passage cavity does not flow into the motor; the switching valve body is provided with an installation hole at the water passage cavity, and a sealing cover is sealed and installed on the installation hole. One end of the rocker arm is rotatably installed on the switching valve body, and the other end of the rocker arm is sealed and rotatably installed on the sealing cover. The linkage turntable includes a main disc and a water-blocking disc. The water-blocking disc extends radially outward from the main disc to prevent water in the water passage cavity from flowing into the motor. One side of the main disc is provided with a blind hole for installing the motor shaft, and the other end of the main disc is provided with a key shaft extending axially outward. The rocker arm is provided with a key hole for inserting the key shaft, and the drive boss is provided on the water-blocking disc.

[0017] The second objective of this invention is to address the above-mentioned shortcomings by providing a control method for a flushing device with two water channels that can be switched by a single driver, thereby enabling multiple flushing modes.

[0018] The second solution adopted by the present invention to solve the technical problem is: a control method for a flushing device, including three flushing modes:

[0019] Flushing mode 1: Control the motor to rotate, drive the sealing ball to block the main pressure flushing outlet. When water flows into the water chamber from the pressure inlet through the water pump and flows out from the pressure outlet, the motor rotation will drive the linkage turntable to rotate away from the back pressure rod I and back pressure rod II. The first back pressure switch and the second back pressure switch are not opened. At this time, the normal pressure inlet does not receive water.

[0020] Flushing Mode 2: Control the motor to rotate, which drives the sealing ball to block the pressure outlet. When water flows into the water chamber from the pressure inlet through the water pump, it flows out from the main pressure outlet. Simultaneously, the motor rotation will drive the linkage turntable to press the back pressure rod I, open the first back pressure switch, and water enters through the normal pressure inlet. The second back pressure switch is closed, and water flows out through the normal pressure outlet.

[0021] Flushing Mode 3: Control the motor to rotate, causing the sealing ball to move away from the main pressure flush outlet and the pressure outlet. When water flows into the water passage chamber from the pressure inlet through the water pump, it flows out from the main pressure flush outlet and the pressure outlet. Simultaneously, the motor rotation will drive the linkage turntable to press down the back pressure rod I and the back pressure rod II. The first back pressure switch is opened, and water enters through the normal pressure inlet. Both second back pressure switches are opened, and the normal pressure outlet is closed. The water passage is open, and the water flows out through the water passage and flows towards the main pressure flush outlet.

[0022] The third objective of this invention is to address the above-mentioned shortcomings by providing a toilet with two water channels that can be switched by a single driver, thereby enabling multiple flushing modes.

[0023] The third solution adopted by the present invention to solve the technical problem is: a toilet, including a water pump and a toilet, and further including a flushing device, wherein the pressure inlet is connected to the outlet of the water pump, the inlet of the water pump is connected to a water tank, and the pressure outlet and the normal pressure outlet are connected to the brush ring of the toilet. The control method described above controls the operation of the flushing device, including the following steps:

[0024] (1) Control the flushing device to flushing mode one, and control the water pump to start. At this time, the water pump draws water from the water tank for cleaning the toilet brush ring. The cleaning time is S1.

[0025] (2) Control the flushing device to flushing mode two, control the water pump to turn on. At this time, the water pump draws water from the water tank for cleaning the bottom of the toilet. At the same time, the motor rotates to drive the linkage turntable to press the back pressure rod I, open the first back pressure switch, and water enters through the normal pressure inlet. The second back pressure switch is closed, and water flows out through the normal pressure outlet. Water comes out of the toilet brush ring. The cleaning time is S2.

[0026] (3) Control the flushing device to maintain flushing mode two, and control the water pump to shut off. At this time, only the normal pressure water inlet is inlet to form a water seal after flushing. The cleaning time is S3.

[0027] (4) Control the flushing device to return to flushing mode one.

[0028] Furthermore, in order to ensure normal flushing when there is a power outage or the water pump is not working; in step (1), when the water pump cannot be turned on or is not turned on, the flushing device is controlled to be in flushing mode two. At this time, the motor rotates to drive the linkage turntable to press the back pressure rod I, turn on the first back pressure switch, water enters through the normal pressure inlet, the second back pressure switch is closed, water flows out through the normal pressure outlet, water comes out of the toilet brush ring, and the cleaning time is S1.

[0029] Furthermore, in order to provide different flushing logics, in step (2), the flushing device can also be controlled to be in flushing mode three, and the water pump can be controlled to be turned on. At this time, the water pump draws water from the water tank for cleaning the bottom of the toilet and the brush ring. At the same time, the motor rotates to drive the linkage turntable to press the back pressure rod I and the back pressure rod II. The first back pressure switch is opened, and water enters through the normal pressure inlet. The second back pressure switch is opened, and the normal pressure outlet is closed. The water outlet is open, and the water inlet flows out through the water outlet and flows to the pressure main flush outlet. The cleaning time is S2.

[0030] Furthermore, in order to ensure normal flushing when there is a power outage or the water pump is not working; in step (2), when the water pump cannot be turned on or is not turned on, the flushing device is controlled to be in flushing mode three. The motor rotates and drives the linkage turntable to press down the back pressure rod I and the back pressure rod II. The first back pressure switch is turned on, and water enters through the normal pressure inlet. The second back pressure switch is turned on, and the normal pressure outlet is closed. The water outlet is open, and the water inlet flows out through the water outlet and flows to the pressure main flushing outlet. The cleaning time is S2.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] (1) The present invention has two water circuits: a water pump water pressure circuit and a normal pressure circuit. The normal pressure circuit also has two types of water circuits: water tank normal pressure circuit and tap water normal pressure circuit. With only one driver and linkage component, the driver can switch the water pump water pressure circuit and simultaneously open the normal pressure circuit.

[0033] (2) The present invention adopts a linkage switching mechanism. The drive rotates through the linkage component, which controls the switching component to switch the water outlet and also controls the first back pressure switch and the second back pressure switch. Here, the linkage component can be a linkage turntable, or it can be a cam boss, gear set, gear rack, rocker arm or wire rope, etc.

[0034] (3) The switching component of the present invention uses a swing rod and a sealing ball. The swing rod drives the sealing ball to move. The sealing ball is movably installed. When it moves to the water outlet, it can fall and block the water outlet under gravity. The operation is convenient. The switching component uses a linkage turntable. Compared with the traditional radial force drive, which is easy to cause the sealing ring to be stressed on one side and cause leakage, the linkage turntable drives the pressure relief rod to rotate with axial force, and the force is more uniform. Attached Figure Description

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0036] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0037] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0038] Figure 3 This is an exploded view of the structure of the present invention;

[0039] Figure 4 This is a structural schematic diagram of the linkage components and pressure relief mechanism;

[0040] Figure 5 Schematic diagram of the linkage turntable structure Figure 1 ;

[0041] Figure 6 Schematic diagram of the linkage turntable structure Figure 2 ;

[0042] Figure 7 This is a schematic diagram of the first flushing mode.

[0043] Figure 8 for Figure 7 Sectional view of AA;

[0044] Figure 9 for Figure 7 BB section view;

[0045] Figure 10 This is a schematic diagram of the state of flushing mode two;

[0046] Figure 11 for Figure 10 Sectional view of AA;

[0047] Figure 12 for Figure 10 BB section view;

[0048] Figure 13 for Figure 10 CC section view;

[0049] Figure 14This is a schematic diagram of the three flushing modes;

[0050] Figure 15 for Figure 14 Sectional view of AA;

[0051] Figure 16 for Figure 14 BB section view;

[0052] Figure 17 for Figure 14 CC section view;

[0053] Figure 18 for Figure 14 DD section view.

[0054] In the picture:

[0055] Switching valve body 1; pressure inlet 11; pressure main flush outlet 12; pressure outlet 13; water passage chamber 14; pressure relief port I 15; pressure relief port II 16; sealing cover 17; motor mounting cover 18; water inlet 19;

[0056] 2. Main body of atmospheric pressure water circuit; 21. Atmospheric pressure water inlet; 211. Water tank inlet; 212. Tap water inlet; 22. Atmospheric pressure water outlet; 23. Atmospheric pressure main flush outlet; 24. Back pressure chamber II; 25. Water replenishment chamber;

[0057] Switching component 3; rocker arm 31; mounting cavity 311; sealing ball 32; actuator 33;

[0058] First back pressure switch 4; back pressure pad I 41; back pressure cover I 42; pressure relief pipe I 43;

[0059] Second back pressure switch 5; back pressure pad II 51; back pressure cover II 52; pressure relief pipe II 53; piston rod 54; water stop pad 55; end cap 56;

[0060] Pressure relief mechanism 6; Pressure relief rod I 61; Pressure relief piston I 62; Pressure relief rod II 63; Pressure relief piston II 64; Pressure relief cover 65;

[0061] Linkage component 7; Linkage turntable 71; Main plate 711; Water-blocking plate 712; Blind hole 713; Key shaft 714; Drive boss 715;

[0062] 8. Anti-siphon cover; 9. Anti-siphon sealing plug. Detailed Implementation

[0063] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0064] Example 1:

[0065] like Figure 1-6 As shown, this embodiment provides a flushing device in which the first back pressure switch 4 and the second back pressure switch 5 are connected in series. Specifically, the first back pressure switch 4 controls the water inlet at the atmospheric pressure inlet, and the second back pressure switch 5 controls the switching of water output between the atmospheric pressure main flush outlet 23 and the atmospheric pressure outlet 22. Besides the technical solution adopted in this embodiment, the first back pressure switch 4 and the second back pressure switch 5 can also be connected in parallel. That is, the first back pressure switch 4 controls the switching of the atmospheric pressure outlet 22, and the second back pressure switch 5 controls the atmospheric pressure main flush outlet 23, and makes corresponding adjustments to the drive boss 715 of the linkage turntable. The example diagram is not shown; the flushing device in this embodiment includes a switching valve body 1, a normal pressure water circuit body 2, and a driver. The switching valve body 1 is provided with a pressure inlet 11, a pressure main flush outlet 12, a water inlet 19 connected to the pressure main flush outlet 12, and a pressure outlet 13. The switching valve body 1 is provided with a water passage chamber 14 connected to the pressure inlet 11, the pressure main flush outlet 12, and the pressure outlet 13. The water passage chamber 14 is provided with a linkage switching component. The driver is connected to the linkage switching component to control the linkage switching component to switch the pressure main flush outlet 12 or the pressure outlet 13 to discharge water.

[0066] The atmospheric pressure water circuit body 2 is provided with an atmospheric pressure inlet 21, an atmospheric pressure outlet 22, and an atmospheric pressure main flush outlet 23 connected to the water inlet 19. The atmospheric pressure water circuit body 2 is provided with a first back pressure switch 4 for controlling whether water enters through the atmospheric pressure inlet 21, a second back pressure switch 5 for controlling the connection between the atmospheric pressure inlet 21 and the atmospheric pressure outlet 22 or the pressure main flush outlet 12, and a pressure relief mechanism 6 for controlling the movement of the first back pressure switch 4 and the second back pressure switch 5. The driver is connected to the pressure relief mechanism 6 through a linkage switching component to control the pressure relief mechanism 6 in a linkage manner.

[0067] In this embodiment, in order to provide two atmospheric pressure water inlet modes, the atmospheric pressure water inlet 21 includes a water tank inlet 211 and a tap water inlet 212, which are arranged in a Y shape on the lower side of the atmospheric pressure water circuit body 2.

[0068] In this embodiment, in order to prevent the occurrence of siphoning, the top of the atmospheric pressure water circuit body 2 is provided with an anti-siphoning port that is connected to the atmospheric pressure water inlet. The anti-siphoning port is provided with an anti-siphoning sealing plug 9 and an anti-siphoning cover 8.

[0069] In this embodiment, in order to form a first back pressure structure to control the water intake of the atmospheric pressure inlet 21, a back pressure chamber I, an inlet I connecting the atmospheric pressure inlet 21 and the back pressure chamber I, and an outlet I are provided inside the atmospheric pressure water circuit body 2. The first back pressure switch 4 includes a back pressure pad I 41 and a back pressure cover I 42. The back pressure pad I 41 is disposed in the back pressure chamber I to block the inlet I and the outlet I. The back pressure cover I 42 is sealed and installed on the back pressure chamber I. A pressure relief pipe I 43 is provided on the back pressure cover I 42. The other end of the pressure relief pipe I 43 is connected to the pressure relief mechanism 6.

[0070] In this embodiment, in order to form a second back pressure structure to control the connection or disconnection between the atmospheric pressure inlet 21 and the atmospheric pressure main flush outlet 23, the atmospheric pressure water circuit body 2 is also provided with a back pressure chamber II 24, an inlet II, and an outlet II. The inlet II is connected to the atmospheric pressure inlet 21 via a first back pressure switch 4, and the outlet II is connected to the atmospheric pressure main flush outlet 23. The second back pressure switch 5 includes a back pressure pad II 51 and a back pressure cover II 52. The back pressure pad II 51 is disposed in the back pressure chamber II 24 to block the inlet II and the outlet II. The back pressure cover II 52 is sealed and installed on the back pressure chamber II 24. The back pressure cover II 52 is provided with a pressure relief pipe II 53, and the other end of the pressure relief pipe II 53 is connected to the pressure relief mechanism 6.

[0071] In this embodiment, in order to form a linkage control structure, the atmospheric pressure inlet 21 is connected to the atmospheric pressure main flush outlet 23, or connected to the atmospheric pressure outlet 22. The atmospheric pressure water circuit body 2 is provided with a water replenishment chamber 25 located behind the back pressure chamber II 24. The atmospheric pressure outlet 22 is located outside the water replenishment chamber 25 and communicates with the water replenishment chamber 25. The atmospheric pressure outlet 22 is provided with an end cap 56. The water replenishment chamber 25 is connected to the atmospheric pressure inlet 21 via the first back pressure switch 4. The atmospheric pressure outlet 22 is connected to the water replenishment chamber 25. The back pressure pad II 51 is connected to a piston rod 54. The other end of the piston rod 54 is provided with a water-stop pad 55 that is movably installed in the water replenishment chamber 25 to seal the atmospheric pressure outlet 22. The piston rod 54 is slidably installed in the atmospheric pressure water circuit body 2 so that the movement of the back pressure pad II 51 drives the piston rod 54 to slide open or close the atmospheric pressure outlet 22.

[0072] In this embodiment, in order to control the activity of the first back pressure switch 4 and the second back pressure switch 5, the pressure relief mechanism 6 includes a pressure relief rod I 61, a pressure relief piston I 62, a pressure relief rod II 63, a pressure relief piston II 64, and a pressure relief cover 65. The switching valve body 1 is provided with a pressure relief port I15 and a pressure relief port II 16 that are connected to the main pressure outlet 12 or to atmospheric pressure. The pressure relief port I15 and the pressure relief port II 16 are respectively connected to the first back pressure switch 4 and the second back pressure switch 5. The other end of the pressure relief pipe I 43 is connected to the pressure relief port I15, and the other end of the pressure relief pipe II 53 is connected to the pressure relief port II 16. The pressure relief pistons I 62 and II 64 are respectively sealed on the pressure relief ports I15 and II 16.

[0073] The pressure relief cover 65 is installed on the switching valve body 1. The pressure relief rod I 61 and pressure relief rod II 63 are both rotatably installed on the pressure relief cover 65. One end of the pressure relief rod I 61 and pressure relief rod II 63 is connected to the pressure relief piston I 62 and pressure relief piston II 64 respectively. The other end of the pressure relief rod I 61 and pressure relief rod II 63 are both connected to the linkage assembly 7, so that the linkage assembly 7 controls the rotation of the pressure relief rod I 61 and pressure relief rod II 63 to drive the movement of the pressure relief piston I 62 and pressure relief piston II 64, thereby controlling the movement of the first back pressure switch 4 and the second back pressure switch 5.

[0074] In this embodiment, in order to form a linkage control structure, the first back pressure switch 4 and the second back pressure switch 5 are controlled by controlling the pressure relief rod I 61 and the pressure relief rod II 63; the linkage switching component includes a linkage component 7 and a switching component 3. The linkage component 7 includes a linkage turntable 71, and the linkage turntable 71 is provided with an axially protruding drive boss 715. The driver 33 is a motor, and the motor shaft of the motor is connected to the linkage turntable 71 to drive the linkage turntable 71 to rotate, thereby causing the drive boss 715 to press or release the other end of the pressure relief rod I 61 and the pressure relief rod II 63.

[0075] In this embodiment, the linkage component 7 can also be a cam boss, gear set, gear rack, rocker arm, or wire rope, etc.

[0076] In this embodiment, in order to switch the water outlet, the sealing ball 32 is mounted on the swing rod 31 so that the swing rod 31 drives the sealing ball 32 to move and ensure that the sealing ball 32 is movable; the switching assembly 3 includes the swing rod 31 and the sealing ball 32. The swing rod 31 is rotatably mounted in the water passage cavity 14. The swing rod 31 is provided with an outward-facing mounting cavity 311. The sealing ball 32 is movably mounted in the mounting cavity 311. The width of the mounting cavity 311 is slightly larger than the diameter of the sealing ball 32, and the depth of the mounting cavity 311 is greater than the diameter of the sealing ball 32 so that the sealing ball 32 can retract into the mounting cavity 311;

[0077] The main pressure outlet 12 and the pressure outlet 13 are located below the rotation path of the swing arm 31, so that when the sealing ball 32 moves above the outlet with the swing arm 31, it falls and blocks the outlet under the action of gravity. The diameters of the main pressure outlet 12 and the pressure outlet 13 are both smaller than the diameter of the sealing ball 32. The main pressure outlet 12 and the pressure outlet 13 are provided with inclined surfaces for cooperating with the sealing ball 32.

[0078] In this embodiment, to rotatably install the swing arm 31 inside the switching valve body 1, the motor is connected to the swing arm 31, ensuring that water in the water passage chamber 14 does not flow into the motor; the switching valve body 1 has a mounting hole located at the water passage chamber 14, and a sealing cover 17 is sealed and installed on the mounting hole. One end of the swing arm 31 is rotatably installed on the switching valve body 1, and the other end of the swing arm 31 is rotatably and sealed on the sealing cover 17. A motor mounting cover 18 is provided on the outside of the sealing cover 17 on the switching valve body 1, and the motor is installed on the motor mounting cover 18. The linkage turntable 71 is installed between the motor mounting cover 18 and the sealing cover 17. The motor mounting cover 18 is provided with a through hole for the motor shaft of the power supply motor to pass through. The motor mounting cover 18 is also provided with an opening groove located below the linkage turntable 71 for draining the seepage water from the motor mounting cover 18. The linkage turntable 71 includes a main plate body 711 and a water-blocking plate 712. The water-blocking plate 712 extends radially outward from the main plate body 711 to prevent water in the water passage cavity 14 from flowing into the motor. One side of the main plate body 711 is provided with a blind hole 713 for installing the motor shaft. The other end of the main plate body 711 is provided with a key shaft 714 extending axially outward. The rocker arm 31 is provided with a key hole for inserting the key shaft 714. The drive boss 715 is provided on the water-blocking plate 712.

[0079] In this embodiment, in order to limit the rotation angle of the swing rod 31, the swing rod 31 includes a swing shaft and a swing part. The swing shaft is rotatably installed in the switching valve body 1. The swing part is formed by extending radially outward from the swing shaft. The mounting cavity is provided on the swing part and the opening direction of the mounting cavity is opposite to the swing shaft. The sealing cover 17 is provided with an arc-shaped limiting rib on the side near the swing rod 31. The limiting rib is located on the upper side of the swing shaft so as to cooperate with the swing part to limit the rotation angle of the swing rod 31 and prevent the driver 33 from driving the swing rod 31 to rotate upward, causing the sealing ball 32 to fall out of the mounting cavity 311.

[0080] Example 2:

[0081] like Figure 7-18 As shown, this embodiment provides a control method for a flushing device, including three flushing modes:

[0082] Flushing mode 1: Control the motor to rotate, drive the sealing ball 32 to block the pressure main flush outlet 12. When water flows into the water chamber 14 from the pressure inlet 11 through the water pump and flows out from the pressure outlet 13, the motor will rotate and drive the linkage turntable 71 to rotate away from the back pressure rod I and back pressure rod II. The first back pressure switch and the second back pressure switch are not opened. At this time, the normal pressure inlet 21 does not enter water.

[0083] Flushing mode two: Control the motor to rotate, drive the sealing ball 32 to block the pressure outlet 13. When water flows from the pressure inlet 11 into the water chamber 14 through the water pump, it flows out from the main pressure outlet 12. Simultaneously, the motor rotation will drive the linkage turntable 71 to press the back pressure rod I, open the first back pressure switch, and water enters through the normal pressure inlet 21. The second back pressure switch is closed, and the water flows out through the normal pressure outlet 22.

[0084] Flushing Mode 3: Control the motor to rotate, causing the sealing ball 32 to move away from the main pressure flush outlet 12 and the pressure outlet 13. When water flows from the pressure inlet 11 into the water passage chamber 14 via the water pump, it flows out from the main pressure flush outlet 12 and the pressure outlet 13. Simultaneously, the motor rotation will drive the linkage turntable 71 to press down the back pressure rod I and the back pressure rod II. The first back pressure switch is opened, and water enters through the normal pressure inlet 21. The second back pressure switch is opened, and the normal pressure outlet 22 is closed. The water passage is open, and the water flows out through the water passage and flows towards the main pressure flush outlet 12.

[0085] Example 3:

[0086] This embodiment provides a toilet, including a water pump and a toilet bowl, and also includes a flushing device. The pressure inlet 11 is connected to the outlet of the water pump, and the inlet of the water pump is connected to a water tank. The pressure outlet 13 and the normal pressure outlet 22 are connected to the brush ring of the toilet bowl. The control method described above controls the operation of the flushing device, including the following steps:

[0087] (1) Control the flushing device to flushing mode one, and control the water pump to start. At this time, the water pump draws water from the water tank for cleaning the toilet brush ring. The cleaning time is S1.

[0088] (2) Control the flushing device to flushing mode two, control the water pump to turn on. At this time, the water pump draws water from the water tank for cleaning the bottom of the toilet. At the same time, the motor rotates to drive the linkage turntable 71 to press the back pressure rod I, open the first back pressure switch, and water enters through the normal pressure inlet 21. The second back pressure switch is closed, and water flows out through the normal pressure outlet 22. Water comes out of the toilet brush ring. The cleaning time is S2.

[0089] (3) Control the flushing device to maintain flushing mode two, and control the water pump to shut off. At this time, only the normal pressure water inlet 21 enters the water to form a water seal after flushing. The cleaning time is S3.

[0090] (4) Control the flushing device to return to flushing mode one.

[0091] In this embodiment, in order to ensure normal flushing when there is a power outage or the water pump is not working; in step (1), when the water pump cannot be turned on or is not turned on, the flushing device is controlled to be in flushing mode two. At this time, the motor rotates to drive the linkage turntable 71 to press the back pressure rod I, turn on the first back pressure switch, and water enters through the normal pressure inlet 21. The second back pressure switch is closed, and water flows out through the normal pressure outlet 22. Water comes out of the toilet brush ring, and the cleaning time is S2.

[0092] In this embodiment, in order to provide different flushing logic, in step (2), the flushing device can also be controlled to be in flushing mode three, and the water pump can be controlled to be turned on. At this time, the water pump draws water from the water tank for cleaning the bottom of the toilet and the brush ring. At the same time, the motor rotates to drive the linkage turntable 71 to press the back pressure rod I and the back pressure rod II. The first back pressure switch is turned on, and water enters through the normal pressure inlet 21. The second back pressure switch is turned on, and the normal pressure outlet 22 is closed. The water outlet is open, and the water flows out through the water outlet and flows to the pressure main flush outlet 12. The cleaning time is S2.

[0093] In this embodiment, in order to ensure normal flushing when there is a power outage or the water pump is not working; in step (2), when the water pump cannot be turned on or is not turned on, the flushing device is controlled to be in flushing mode three. The motor rotates and drives the linkage turntable 71 to press down the back pressure rod I and the back pressure rod II. The first back pressure switch is turned on, and water enters through the normal pressure inlet 21. The second back pressure switch is turned on, and the normal pressure outlet 22 is closed. The water outlet is open, and the water flows out through the water outlet and flows to the pressure main flushing outlet 12. The cleaning time is S2.

[0094] In this embodiment, in order to ensure normal flushing when there is a power outage or the water pump is not working, in step (3), when the water pump cannot be turned on, the flushing device is controlled to maintain flushing mode two. At this time, only the normal pressure water inlet 21 is inlet for water to form a water seal after flushing, and the cleaning time is S3.

[0095] The above description is merely an embodiment of the present invention and does not limit the scope of patent protection of the invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A flushing device, characterized in that: The device includes a switching valve body, a normal pressure water circuit body, and a driver. The switching valve body is provided with a pressure inlet, a pressure main flush outlet, and a pressure outlet. The switching valve body is provided with a water passage chamber that communicates with the pressure inlet, the pressure main flush outlet, and the pressure outlet. The water passage chamber is provided with a linkage switching component. The driver is connected to the linkage switching component to control the linkage switching component to switch the water output from the pressure main flush outlet or the pressure outlet. The main body of the atmospheric pressure water circuit is provided with an atmospheric pressure inlet, an atmospheric pressure outlet, and an atmospheric pressure main flush outlet. The main body of the atmospheric pressure water circuit is provided with a first back pressure switch for controlling the water output of the atmospheric pressure outlet, a second back pressure switch for controlling the water output of the atmospheric pressure main flush outlet, and a pressure relief mechanism for controlling the first back pressure switch and the second back pressure switch. The driver is connected to the pressure relief mechanism through a linkage switching component to control the pressure relief mechanism in a linkage manner.

2. The flushing device according to claim 1, characterized in that: The main body of the atmospheric pressure water circuit is provided with a back pressure chamber I, an inlet I, and an outlet I inside the atmospheric pressure inlet. The inlet I is connected to the atmospheric pressure inlet. The first back pressure switch includes a back pressure pad I and a back pressure cover I. The back pressure pad I is located in the back pressure chamber I to block the inlet I and the outlet I. The back pressure cover I is sealed and installed on the back pressure chamber I. The back pressure cover I is provided with a pressure relief pipe I. The other end of the pressure relief pipe I is connected to the pressure relief mechanism.

3. The flushing device according to claim 1, characterized in that: The main body of the atmospheric pressure water circuit is also provided with a back pressure chamber II, an inlet II, and an outlet II. The inlet II is connected to the atmospheric pressure inlet via a first back pressure switch. The outlet II is connected to the atmospheric pressure main flush outlet. The atmospheric pressure main flush outlet is connected to the pressure main flush outlet. The second back pressure switch includes a back pressure pad II and a back pressure cover II. The back pressure pad II is disposed in the back pressure chamber II to block the inlet II and the outlet II. The back pressure cover II is sealed and installed on the back pressure chamber II. The back pressure cover II is provided with a pressure relief pipe II. The other end of the pressure relief pipe II is connected to a pressure relief mechanism.

4. The flushing device according to claim 3, characterized in that: The main body of the atmospheric pressure water circuit has a water replenishment chamber located behind the back pressure chamber II. The water replenishment chamber is connected to the atmospheric pressure inlet via the first back pressure switch. The atmospheric pressure outlet is connected to the water replenishment chamber. A piston rod is connected to the back pressure pad II. The other end of the piston rod is equipped with a water-stop pad that is movably installed in the water replenishment chamber. The piston rod is slidably installed in the main body of the atmospheric pressure water circuit so that the movement of the back pressure pad II can drive the piston rod to slide open or close the atmospheric pressure outlet.

5. The flushing device according to claim 1, characterized in that: The pressure relief mechanism includes a pressure relief rod I, a pressure relief piston I, a pressure relief rod II, a pressure relief piston II, and a pressure relief cover. The switching valve body is provided with a pressure relief port I and a pressure relief port II. The pressure relief port I and the pressure relief port II are respectively connected to the first back pressure switch and the second back pressure switch. The pressure relief piston I and the pressure relief piston II are respectively sealed on the pressure relief port I and the pressure relief port II. The pressure relief cover is installed on the switching valve body. The pressure relief rod I and pressure relief rod II are both rotatably installed on the pressure relief cover. One end of the pressure relief rod I and pressure relief rod II is connected to the pressure relief piston I and pressure relief piston II, respectively. The other end of the pressure relief rod I and pressure relief rod II is connected to the linkage assembly so that the linkage assembly controls the rotation of the pressure relief rod I and pressure relief rod II to drive the movement of the pressure relief piston I and pressure relief piston II, thereby controlling the movement of the first back pressure switch and the second back pressure switch.

6. The flushing device according to claim 5, characterized in that: The linkage switching mechanism includes a linkage component and a switching component. The linkage component includes a linkage turntable, on which an axially protruding drive boss is provided. The driver is connected to the linkage turntable to drive the linkage turntable to rotate, thereby causing the drive boss to press or release the other end of the pressure relief rod I and pressure relief rod II.

7. The flushing device according to claim 6, characterized in that: The switching assembly includes a rocker arm and a sealing ball. The rocker arm is rotatably mounted in the water passage cavity. One end of the rocker arm is connected to the drive driver. The rocker arm has an outward-facing mounting cavity. The sealing ball is movably mounted in the mounting cavity. The width of the mounting cavity is slightly larger than the diameter of the sealing ball, and the depth of the mounting cavity is larger than the diameter of the sealing ball so that the sealing ball can retract into the mounting cavity. The main pressure outlet and the pressure outlet are located below the rotation path of the swing arm, so that when the sealing ball moves above the outlet with the swing arm, it falls and blocks the outlet under the action of gravity. The diameter of the main pressure outlet and the pressure outlet is smaller than the diameter of the sealing ball. The main pressure outlet and the pressure outlet are provided with inclined surfaces for cooperating with the sealing ball.

8. A control method for the flushing device as described in claims 1-7, characterized in that: Includes three flushing modes: Flushing mode 1: Control the motor to rotate, drive the sealing ball to block the main pressure flushing outlet. When water flows into the water chamber from the pressure inlet through the water pump and flows out from the pressure outlet, the motor rotation will drive the linkage turntable to rotate away from the back pressure rod I and back pressure rod II. The first back pressure switch and the second back pressure switch are not opened. At this time, the normal pressure inlet does not receive water. Flushing Mode 2: Control the motor to rotate, which drives the sealing ball to block the pressure outlet. When water flows into the water chamber from the pressure inlet through the water pump, it flows out from the main pressure outlet. Simultaneously, the motor rotation will drive the linkage turntable to press the back pressure rod I, open the first back pressure switch, and water enters through the normal pressure inlet. The second back pressure switch is closed, and water flows out through the normal pressure outlet. Flushing Mode 3: Control the motor to rotate, causing the sealing ball to move away from the main pressure flush outlet and the pressure outlet. When water flows into the water passage chamber from the pressure inlet through the water pump, it flows out from the main pressure flush outlet and the pressure outlet. Simultaneously, the motor rotation will drive the linkage turntable to press down the back pressure rod I and the back pressure rod II. The first back pressure switch is opened, and water enters through the normal pressure inlet. Both second back pressure switches are opened, and the normal pressure outlet is closed. The water passage is open, and the water flows out through the water passage and flows towards the main pressure flush outlet.

9. A toilet, comprising a water pump and a toilet seat, characterized in that: It also includes the flushing device as described in claims 1-7, wherein the pressure inlet is connected to the outlet of the water pump, the inlet of the water pump is connected to the water tank, and the pressure outlet and the normal pressure outlet are connected to the brush ring of the toilet seat. The flushing device is controlled to operate using the control method as described in claim 8, including the following steps: (1) Control the flushing device to flushing mode one, and control the water pump to turn on. At this time, the water pump draws water from the water tank for cleaning the toilet brush ring. The cleaning time is S1. (2) Control the flushing device to flushing mode two, control the water pump to turn on. At this time, the water pump draws water from the water tank for cleaning the bottom of the toilet. At the same time, the motor rotates to drive the linkage turntable to press the back pressure rod I, open the first back pressure switch, and water enters through the normal pressure inlet. The second back pressure switch is closed, and water flows out through the normal pressure outlet. Water comes out of the toilet brush ring. The cleaning time is S2. (3) Control the flushing device to maintain flushing mode two, and control the water pump to shut off. At this time, only the normal pressure water inlet is inlet to form a water seal after flushing. The cleaning time is S3. (4) Control the flushing device to return to flushing mode one.

10. The toilet according to claim 9, characterized in that: In step (1), when the water pump cannot be turned on or is not turned on, the flushing device is controlled to be in flushing mode two. At this time, the motor rotates to drive the linkage turntable to press the back pressure rod I, turn on the first back pressure switch, and water enters through the normal pressure inlet. The second back pressure switch is closed, and water flows out through the normal pressure outlet. Water comes out of the toilet brush ring, and the cleaning time is S1.

11. The toilet according to claim 9, characterized in that: In step (2), the flushing device can also be controlled to be in flushing mode three, and the water pump can be turned on. At this time, the water pump draws water from the water tank for cleaning the bottom of the toilet and the brush ring. At the same time, the motor rotates and drives the linkage turntable to press the back pressure rod I and back pressure rod II. The first back pressure switch is opened, and water enters through the normal pressure inlet. The second back pressure switch is opened, and the normal pressure outlet is closed. The water outlet is open, and the water inlet flows out through the water outlet and flows to the pressure main flush outlet. The cleaning time is S2.

12. The toilet according to claim 9, characterized in that: In step (2), when the water pump cannot be turned on or is not turned on, the flushing device is controlled to be in flushing mode three. The motor rotates and drives the linkage turntable to press down the back pressure rod I and the back pressure rod II. The first back pressure switch is turned on, and water enters through the normal pressure inlet. The second back pressure switch is turned on, and the normal pressure outlet is closed. The water outlet is open, and the water flows out through the water outlet and flows to the pressure main flushing outlet. The cleaning time is S2.

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