A scouring device

Abstract

The utility model provides a kind of flushing device, including switching valve main body, normal pressure waterway main body and driver, the switching valve main body is equipped with pressure inlet, pressure main flush outlet and pressure outlet, the normal pressure waterway main body is equipped with normal pressure inlet, normal pressure outlet and normal pressure main flush outlet, switching valve main body is equipped with the water passing cavity being communicated with pressure inlet, pressure main flush outlet and pressure outlet, the water passing cavity is equipped with linkage switching mechanism, the driver is connected with linkage switching mechanism to control linkage switching mechanism switching pressure main flush outlet water or pressure outlet water.The utility model has two kinds of waterways of water pump water pressure waterway and normal pressure waterway, and normal pressure waterway simultaneously has two kinds of water tank normal pressure water pressure and tap water normal pressure waterway, only by one driver cooperation linkage switching mechanism, the driver switching water pump water pressure waterway can be realized simultaneously, linkage opens normal pressure waterway.

Description

Technical Field

[0001] This utility model relates to the field of bathroom technology, specifically to a flushing device. 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 inventor of this utility model conducted in-depth research on the above-mentioned issues, which led to the creation of this case. Utility Model Content

[0005] The purpose 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 solution adopted by this utility model to solve the technical problem is: a flushing device, including 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 normal pressure water circuit body is provided with a normal pressure inlet, a normal pressure outlet and a normal pressure main flush outlet. The switching valve body is provided with a water passage chamber communicating with the pressure inlet, the pressure main flush outlet and the pressure outlet. The water passage chamber is provided with a linkage switching mechanism. The driver is connected to the linkage switching mechanism to control the linkage switching mechanism to switch the water output from the pressure main flush outlet or the pressure outlet.

[0007] Furthermore, in order to switch the main water circuit of the atmospheric pressure water circuit, the main water circuit 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 atmospheric pressure main flush outlet is connected to the pressure main flush outlet. The driver is connected to the pressure relief mechanism through a linkage switching mechanism 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, and an outlet I located 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 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 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 switching mechanism, so that the linkage switching mechanism 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 mounted on a swing arm so that the swing arm drives the sealing ball to move and ensures that the sealing ball is movable; the switching assembly includes a swing arm and a sealing ball. The swing arm is rotatably mounted in the water passage cavity, and one end of the swing arm is connected to the driver. The swing arm has an outward-facing mounting cavity, and 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 greater 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, 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 chamber does not flow into the motor; the switching valve body has a mounting hole located at the water passage chamber, and a sealing cover is sealed and installed on the mounting hole. One end of the rocker arm is rotatably installed on the switching valve body, and the other end of the rocker arm is rotatably and sealed on the sealing cover. The driver is a motor, and the switching valve body has a motor mounting cover located outside the sealing cover. The motor is mounted on the motor mounting cover, and the linkage turntable is mounted on the motor mounting cover and the sealing cover. Between the covers, the motor mounting cover has a through hole for the motor shaft of the power supply motor to pass through. The motor mounting cover also has an opening groove located below the linkage turntable for draining the seepage water from the motor mounting cover. The linkage turntable includes a main plate body and a water-blocking plate. The water-blocking plate extends radially outward from the main plate body to prevent water in the water passage cavity from flowing into the motor. One side of the main plate body has a blind hole for installing the motor shaft. The other end of the main plate body has a key shaft extending axially outward. The rocker arm has a key hole for inserting the key shaft. The drive boss is located on the water-blocking plate.

[0017] Furthermore, to limit the rotation angle of the swing arm; the swing arm includes a swing shaft and a swing part, the swing shaft is rotatably installed in the switching valve body, the swing part is formed by the swing shaft extending radially outward, 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 is provided with an arc-shaped limiting rib on the side near the swing arm, 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 arm, and prevent the driver from driving the swing arm to rotate upward, causing the sealing ball to fall out of the mounting cavity.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] (1) This utility model 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: a water tank normal pressure circuit and a tap water normal pressure circuit. With just one driver and a linkage switching mechanism, the driver can switch the water pump water pressure circuit while simultaneously opening the normal pressure circuit.

[0020] (2) This utility model 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.

[0021] (3) The switching component of this utility model adopts a swing rod and a sealing ball. The swing rod drives the sealing ball to move. The sealing ball is installed movably. When it moves to the water outlet, it can fall and block the water outlet under gravity. The operation is convenient. The switching component adopts 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

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0025] Figure 3 This is an exploded view of the structure of this utility model;

[0026] Figure 4 This is a structural diagram of the linkage switching mechanism and the pressure relief mechanism;

[0027] Figure 5 Schematic diagram of the linkage turntable structure Figure 1;

[0028] Figure 6 Schematic diagram of the linkage turntable structure Figure 2 ;

[0029] Figure 7 This is a schematic diagram of the first flushing mode.

[0030] Figure 8 for Figure 7 Sectional view of AA;

[0031] Figure 9 for Figure 7 BB section view;

[0032] Figure 10 This is a schematic diagram of the state of flushing mode two;

[0033] Figure 11 for Figure 10 Sectional view of AA;

[0034] Figure 12 for Figure 10 BB section view;

[0035] Figure 13 for Figure 10 CC section view;

[0036] Figure 14 This is a schematic diagram of the three flushing modes;

[0037] Figure 15 for Figure 14 Sectional view of AA;

[0038] Figure 16 for Figure 14 BB section view;

[0039] Figure 17 for Figure 14 CC section view;

[0040] Figure 18 for Figure 14 DD section view.

[0041] In the picture:

[0042] 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;

[0043] 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;

[0044] Switching component 3; rocker arm 31; mounting cavity 311; sealing ball 32; actuator 33;

[0045] First back pressure switch 4; back pressure pad I 41; back pressure cover I 42; pressure relief pipe I 43;

[0046] 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;

[0047] 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;

[0048] Linkage component 7; Linkage turntable 71; Main plate 711; Water-blocking plate 712; Blind hole 713; Key shaft 714; Drive boss 715;

[0049] 8. Anti-siphon cover; 9. Anti-siphon sealing plug. Detailed Implementation

[0050] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0051] Example 1:

[0052] like Figure 1-6 As shown, this embodiment provides a flushing device, including 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 mechanism. The driver is connected to the linkage switching mechanism to control the linkage switching mechanism to switch the pressure main flush outlet 12 or the pressure outlet 13 to discharge water.

[0053] The main body 2 of the atmospheric pressure water circuit 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 main body 2 of the atmospheric pressure water circuit is provided with a first back pressure switch 4 for controlling the water output of the atmospheric pressure outlet 22, a second back pressure switch 5 for controlling the water output of the main flush outlet 12, and a pressure relief mechanism 6 for controlling 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 mechanism to control the pressure relief mechanism 6 in a linkage manner.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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 communicating with the main pressure outlet 12. 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.

[0060] 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 connected to the linkage switching mechanism so that the pressure relief rod I 61 and pressure relief rod II 63 can be rotated through the linkage switching mechanism to drive the pressure relief piston I 62 and pressure relief piston II 64 to move, thereby controlling the first back pressure switch 4 and the second back pressure switch 5 to move.

[0061] 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 mechanism includes a linkage component 7 and a switching component 3. The linkage component 7 includes a linkage turntable 71, on which an axially protruding drive boss 715 is provided. 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.

[0062] In this embodiment, the linkage component 7 can also be a cam boss, gear set, gear rack, rocker arm, or wire rope, etc.

[0063] 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. One end of the swing rod 31 is connected to the driver 33. 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.

[0064] 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.

[0065] In this embodiment, 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, and 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.

[0066] 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.

[0067] Example 2:

[0068] like Figure 7-18 As shown, this embodiment provides a control method for a flushing device, including three flushing modes:

[0069] 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.

[0070] 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.

[0071] 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.

[0072] Example 3:

[0073] 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:

[0074] (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.

[0075] (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.

[0076] (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.

[0077] (4) Control the flushing device to return to flushing mode one.

[0078] In this embodiment, in order to provide different flushing logic, in step (2), the flushing device is controlled to be in flushing mode three, and the water pump is 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.

[0079] In this embodiment, to ensure normal flushing during power outages or when the water pump is not working, when the water pump cannot be turned on or is not turned on, the flushing device is controlled to flushing mode two. At this time, water enters through the atmospheric pressure inlet 21 and flows out through the atmospheric pressure outlet 22, and water is discharged from the toilet brush ring. The cleaning time is S1. Then, the flushing device is controlled to flushing mode three, with water entering through the atmospheric pressure inlet 21, the atmospheric pressure outlet 22 closed, and the water outlet open. Water flows out through the water outlet and flows to the main pressure flush outlet 12 for rinsing the bottom of the toilet. The cleaning time is S2. After rinsing, the flushing device is controlled to flushing mode two, and water is discharged from the toilet brush ring to form a water seal after rinsing. Finally, the flushing device is controlled to return to flushing mode one.

[0080] The above description is merely an embodiment of this utility model and does not limit the scope of patent protection of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this utility model.

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 normal pressure water circuit body is provided with a normal pressure inlet, a normal pressure outlet, and a normal pressure main flush 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 mechanism. The driver is connected to the linkage switching mechanism to control the linkage switching mechanism to switch the water output from the pressure main flush outlet or the pressure outlet.

2. The flushing device according to claim 1, characterized in that: The main body of the atmospheric pressure water circuit is equipped 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 atmospheric pressure main flush outlet is connected to the pressure main flush outlet. The driver is connected to the pressure relief mechanism through a linkage switching mechanism to control the pressure relief mechanism in a linkage manner.

3. The flushing device according to claim 2, 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.

4. The flushing device according to claim 2, 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, 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 located 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.

5. The flushing device according to claim 4, 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.

6. The flushing device according to claim 2, 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 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 switching mechanism, so that the linkage switching mechanism 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.

7. The flushing device according to claim 6, 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.

8. The flushing device according to claim 7, 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.

9. The flushing device according to claim 8, characterized in that: The switching valve body has a mounting hole at the water passage cavity, and a sealing cover is sealed and installed on the mounting hole. One end of the rocker arm is rotatably mounted on the switching valve body, and the other end of the rocker arm is rotatably and sealed on the sealing cover. The driver is a motor. The switching valve body has a motor mounting cover on the outside of the sealing cover, and the motor is mounted on the motor mounting cover. The linkage turntable is installed between the motor mounting cover and the sealing cover. The motor mounting cover has a through hole for the motor shaft of the power supply motor to pass through. The motor mounting cover also has an opening groove located below the linkage turntable for draining seepage water from the motor mounting cover. The linkage turntable includes a main plate and a water-blocking plate. The water-blocking plate extends radially outward from the main plate to prevent water in the water passage cavity from flowing into the motor. One side of the main plate has a blind hole for installing the motor shaft, and the other end of the main plate has a key shaft extending axially outward. The rocker arm has a key hole for inserting the key shaft, and the driving boss is located on the water-blocking plate.

10. The flushing device according to claim 9, characterized in that: The rocker arm includes a rocker shaft and a rocker part. The rocker shaft is rotatably mounted inside the switching valve body. The rocker part is formed by extending radially outward from the rocker shaft. The mounting cavity is located on the rocker part, and the opening of the mounting cavity faces away from the rocker shaft. The sealing cover has an arc-shaped limiting rib on the side near the rocker arm. The limiting rib is located on the upper side of the rocker shaft so as to cooperate with the rocker part to limit the rotation angle of the rocker arm and prevent the driver from driving the rocker arm to rotate upward, causing the sealing ball to fall out of the mounting cavity.

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