An adjustable toilet flushing device

Abstract

The application discloses a toilet flushing device, which comprises a seat body, a water tank, a hydraulic drain valve and a water pump. The seat body is provided with a toilet bowl, an upper part of the toilet bowl is provided with a washing opening, and a lower part of the toilet bowl is provided with a jet opening. The water tank is used for providing flushing water for the washing opening and the jet opening, and is provided with a drain opening. The drain opening is connected with the jet opening through a drain channel. The hydraulic drain valve is arranged at the drain opening of the water tank to control opening and closing of the drain opening. The jet pump is arranged in the water tank. The jet pump is provided with a water jet channel. When the jet pump is opened, water in the water tank can be brought into the water jet channel through a Venturi effect and be delivered to the washing opening. The jet pump comprises a buoyancy mechanism provided with a float bucket. The float bucket controls opening and closing of the water jet channel according to a water level in the water tank. The height of the float bucket in a floating position is adjustable. The water pump provides pressure water to the hydraulic drain valve and the jet pump to open the hydraulic drain valve and the jet pump respectively. The application can not only ensure effective flushing of the toilet, but also effectively reduce the cost and reliably control the water quantity supplied to the washing opening.

Description

Technical Field

[0001] This invention relates to the field of sanitary ware technology, and in particular to an adjustable toilet flushing device. Background Technology

[0002] With the increasing popularity of low-profile toilets, their flushing performance faces greater challenges. Because the water tank should ideally be positioned no higher than the toilet seat, the potential energy of the water in the low-profile tank is insufficient for effective flushing. Some toilets employ a tankless design, relying on tap water pressure for flushing. However, using tap water pressure affects the flushing effect, impacting the user experience. To avoid the impact of unstable tap water pressure, some toilets use a pump to draw water from the low-profile tank for flushing. However, relying solely on a pump requires a high-powered pump, hindering cost reduction. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides an adjustable toilet flushing device, which not only ensures effective flushing of the toilet, but also effectively reduces costs.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: an adjustable toilet flushing device, comprising: The seat has a toilet bowl, the upper part of which is provided with a washing port and the lower part with a spray port; A water tank is provided to provide rinsing water to the washing port and the spray port. The water tank is provided with a drain port, which is connected to the spray port through a drainage channel. A hydraulic drain valve is located at the drain outlet of the water tank to control the opening and closing of the drain outlet; A jet pump is installed inside the water tank. The jet pump has a water spray channel. When the jet pump is turned on, it can carry water from the water tank into the water spray channel and deliver it to the washing port through the venturi action. The jet pump includes a buoyancy mechanism with a float. The float controls the opening and closing of the water spray channel according to the water level in the water tank. The height of the float when it is in the floating position is adjustable. A water pump supplies pressurized water to the hydraulic drain valve and the jet pump to open the hydraulic drain valve and the jet pump, respectively.

[0005] In a preferred embodiment, the system further includes a water distribution pipe having an inlet, a first outlet, and a second outlet. The inlet of the water distribution pipe is connected to the outlet of the water pump. The first outlet is used to supply water to the hydraulic drain valve, and the second outlet is used to supply water to the jet pump.

[0006] In a preferred embodiment, the water pump has two outlets, one of which is used to supply water to the hydraulic drain valve, and the other outlet is used to supply water to the jet pump.

[0007] In a preferred embodiment, the water pump inlet is connected to the water tank to draw water from the water tank, or the water pump inlet is connected to a water source outside the water tank to draw water from the water source outside the water tank.

[0008] In a preferred embodiment, the jet pump includes a nozzle and a nozzle pipe. The nozzle pipe has an inlet end, an outlet end, and a water spraying channel connecting the inlet end and the outlet end. The inlet end of the nozzle is connected to the outlet of the water pump. There is a flow passage gap between the outlet end of the nozzle and the inlet end of the nozzle pipe, which opens into the inner cavity of the water tank. The flow passage cross-sectional area of ​​the outlet end of the nozzle is smaller than the flow passage cross-sectional area of ​​the inlet end of the nozzle pipe. When the outlet end of the nozzle sprays water toward the inlet end of the nozzle pipe, the water in the water tank is carried into the nozzle pipe through the flow passage gap under the action of the Venturi and sprayed out from the outlet end of the nozzle pipe together with the water from the nozzle. The jet pump also includes a baffle plate, which is rotatably disposed inside the spray pipe to open or close the water spray channel; The buoyancy mechanism also includes an adjusting component, and the float is adjustablely mounted on the adjusting component so that the height of the float when it is in the floating position is adjustable. The float controls the baffle to open or close the water spray channel according to the water level change in the water tank.

[0009] In a preferred embodiment, when the float is floating, the baffle opens the water spray channel by the adjusting member; when the float is falling, the baffle closes the water spray channel by the adjusting member; or, when the float is falling, the baffle closes the water spray channel under the elastic force of the elastic member, the gravity of the counterweight, or the magnetic force of the magnetic member.

[0010] In a preferred embodiment, the jet pump further includes a rocker arm, a first end of which is connected to one end of the adjusting member, a second end of which is pivotally connected to the nozzle, and a rotating end of the baffle connected to the second end of the rocker arm. When the rocker arm rotates around the second end of the rocker arm under the drive of the adjusting member, the rocker arm drives the baffle to rotate around the rotating end of the baffle.

[0011] In a preferred embodiment, the inner wall of the nozzle is provided with a limiting step surface. When the baffle moves to abut against the step surface, it closes the water spray channel. One side of the nozzle protrudes radially outward to form a relief cavity in the inner cavity of the nozzle. The relief cavity is located between the inlet end of the nozzle and the limiting step surface. The inlet end of the nozzle and the limiting step surface are axially aligned with each other in the nozzle. The axial position of the relief cavity in the nozzle is offset from the positions of the inlet end of the nozzle and the limiting step surface. When the baffle opens the water spray channel, it is located in the relief cavity.

[0012] In a preferred embodiment, the adjusting element is a screw or a chain.

[0013] In a preferred embodiment, the nozzle is a curved pipe, which includes a horizontal pipe section and a vertical pipe section, and the horizontal pipe section of the curved pipe is fixedly installed at the washing port.

[0014] In a preferred embodiment, the device further includes a nozzle passing through the washing port and a connecting pipe for fixing the nozzle and the water outlet of the transverse pipe section. The water inlet of the nozzle extends outward from the washing port and is sleeved inside the connecting pipe with the water outlet of the transverse pipe section. When the connecting pipe is fixedly connected to the nozzle, it abuts against the outer and inner sides of the washing port to clamp and fix it to both sides of the washing port.

[0015] In a preferred embodiment, the jet pump further includes a base with a water supply channel, the nozzle is fixed to the base and connected to the water supply channel, the inlet end of the spray pipe is connected to the base, and a water pump mounting bracket for mounting the water pump is provided on the spray pipe or the base.

[0016] In a preferred embodiment, the hydraulic drain valve includes a valve body, a valve core movably disposed in the valve body to control the opening and closing of the drain outlet, a hydraulic assembly with a hydraulic chamber, a clutch transmission assembly, and a buoyancy assembly. The hydraulic chamber is connected to the outlet of the water pump. The clutch transmission assembly includes a first part and a second part that engage and disengage. After the hydraulic assembly drives the valve core to move upward through the clutch transmission assembly to open the drain outlet, the first part and the second part of the clutch transmission assembly disengage, thereby disconnecting the transmission of the hydraulic assembly to the valve core. The valve core is supported by the buoyancy assembly and held in the position where the drain outlet is open. After the buoyancy assembly descends with the water level in the water tank, the valve core resets and closes the drain outlet, and the first part and the second part of the clutch transmission assembly are reconnected.

[0017] In a preferred embodiment, the water tank is integrally formed behind the toilet bowl of the seat, and the water level in the water tank is lower than the upper surface of the toilet bowl.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention, by setting up a water tank, a water pump, a hydraulic drain valve, and a jet pump, uses the hydraulic drain valve to control the opening of the drain outlet, thereby delivering water from the water tank to the jet outlet to achieve spray flushing of the bottom of the toilet bowl. The jet pump delivers water from the water tank to the washing outlet, thereby achieving effective flushing of the inner wall of the toilet bowl. Furthermore, the water pump outputs pressurized water to open the hydraulic drain valve and the jet pump respectively. This effectively avoids the problem of unstable water pressure when using tap water to flush the toilet in the prior art. On the other hand, since the water pump only needs to drive the opening of the hydraulic drain valve and the jet pump, it is not necessary to directly use the water output from the water pump to flush the toilet bowl. Therefore, the required water pump power is small, and the water pump cost is low.

[0019] 2. The jet pump of the present invention is equipped with a buoyancy mechanism with a float. The float can control the opening and closing of the spray channel according to the water level in the water tank, and the height of the float when it is in the floating position is adjustable. In this way, by adjusting the position of the float, the timing of the float's descent can be adjusted, thereby controlling the timing of the spray channel's closure and achieving the purpose of adjusting the spray volume of the jet pump. It has a simple structure, convenient water volume adjustment, and reliable function.

[0020] 3. The use of a water distribution pipe eliminates the need for two water pumps. One water pump is used to control both the hydraulic drain valve and the jet pump, saving on water pump costs.

[0021] 4. A single water pump with two outlets is used, eliminating the need for two separate pumps. One pump simultaneously controls the opening of the hydraulic drain valve and the jet pump, saving on pump costs.

[0022] 5. The hydraulic drain valve includes a clutch transmission assembly, which enables the hydraulic assembly to drive the valve core to open the drain port. After the hydraulic assembly drives the valve core to open the drain port, the hydraulic assembly disconnects the drive to the valve core. The valve core is no longer controlled by the hydraulic assembly but is supported by the buoyancy assembly and held in the open drain port position until the buoyancy assembly drops with the water level in the tank. Then the valve core resets and closes the drain port, making the drainage volume of the hydraulic drain valve more stable and reliable. Attached Figure Description

[0023] Figure 1 This is an assembly diagram of a toilet flushing device according to an embodiment of the present invention; Figure 2 This is an exploded view of a toilet flushing device according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of a toilet flushing device according to an embodiment of the present invention; Figure 4 This is a top view of a toilet flushing device according to an embodiment of the present invention; Figure 5 This is a water distribution pipe according to an embodiment of the present invention; Figure 6 This is a three-dimensional assembly diagram of a jet pump according to an embodiment of the present invention; Figure 7 This is an exploded perspective view of a jet pump according to an embodiment of the present invention; Figure 8 This is a cross-sectional view of a jet pump according to an embodiment of the present invention; Figure 9 This is a cross-sectional view of a jet pump according to an embodiment of the present invention when the baffle is in the open water spray channel; Figure 10 This is a cross-sectional view of a jet pump according to an embodiment of the present invention when the baffle is in the closed water spray channel; Figure 11 This is a cross-sectional view of the float of the jet pump according to an embodiment of the present invention when it is in a lower floating position on the screw; Figure 12 This is a cross-sectional view of the float of the jet pump according to an embodiment of the present invention when it is in a high floating position on the screw; Figure 13 This is a cross-sectional view of the float of the jet pump according to another embodiment of the present invention when it is in a lower floating position on the chain; Figure 14 This is a cross-sectional view of the float of the jet pump according to another embodiment of the present invention when it is in a higher floating position on the chain; The annotations in the attached figures are explained as follows: 10-Seat; 11-Ledger; 12-Washing nozzle; 13-Spray nozzle; 20-Water tank; 30-Hydraulic drain valve; 31-Valve body; 32-Valve core; 33-Connecting hose; 40-Jet Pump; 410-Nozzle; 420-Spray Pipe; 421-Inlet End; 422-Outlet End; 423-Water Spray Channel; 424-Flow Gap; 425-Limiting Step Surface; 426-Relief Chamber; 430-Baffle; 431-Rotating Shaft; 432-Sealing Gasket; 440-Buoyancy Mechanism; 441-Float; 442-Adjusting Component; 4421-Screw; 4422-Pivot Rod; 4423-Chain; 450-Swing Rod; 451-First End of Swing Rod; 452-Second End of Swing Rod; 453-First Rod; 454-Second Rod; 4541-Second End of Second Rod; 45411-Shaft Hole; 455-Connecting Rod; 460-Base; 461-Water Supply Channel; 462-Snap Ring; 50 - Water pump; 60 - Water distribution pipe; 61 - Water inlet of water distribution pipe; 62 - First water outlet; 63 - Second water outlet; 70 - Connecting pipe; 80 - Pump mounting bracket; 90-Sprayer head. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] Please see Figures 1 to 14 As shown, an adjustable toilet flushing device according to an embodiment of the present invention includes: The seat 10 has a toilet bowl 11, with a washing port 12 at the top and a spray port 13 at the bottom. Water tank 20 is used to provide rinsing water to the washing port 12 and the spray port 13. Water tank 20 is provided with a drain port (not shown), which is connected to the spray port 13 through a drain channel (not shown). A hydraulic drain valve 30 is located at the drain outlet of the water tank 20 to control the opening and closing of the drain outlet; A jet pump 40 is installed inside the water tank 20. The jet pump 40 has a water spray channel 423. When the jet pump 40 is turned on, it can carry the water in the water tank 20 into the water spray channel 423 through the venturi action and deliver it to the washing port 12. The jet pump 40 includes a buoyancy mechanism 440 with a float 441. The float 441 controls the opening and closing of the water spray channel 423 according to the water level in the water tank 20. The height of the float 441 when it is in the floating position is adjustable. Water pump 50 provides pressurized water to hydraulic drain valve 30 and jet pump 40 to open hydraulic drain valve 30 and jet pump 40 respectively.

[0026] In this embodiment, a water distribution pipe 60 is also included. The water distribution pipe 60 has an inlet 61, a first outlet 62, and a second outlet 63. The inlet 61 of the water distribution pipe 60 is connected to the outlet of the water pump 50. The first outlet 62 is used to supply water to the hydraulic drain valve 30, and the second outlet 63 is used to supply water to the jet pump 40. Alternatively, in other embodiments, the water distribution pipe 60 may be omitted, and instead, the water pump 50 may have two outlets. One outlet of the water pump 50 is used to supply water to the hydraulic drain valve 30, and the other outlet of the water pump 50 is used to supply water to the jet pump 40. The first outlet 62 is connected to the hydraulic chamber (not shown) of the hydraulic drain valve 30 via a connecting hose 33.

[0027] In this embodiment, the inlet of the water pump 50 is connected to the water tank 20 to draw water from the water tank 20. In this embodiment, the water pump 50 is installed inside the water tank 20, but it can also be installed outside the water tank 20. Alternatively, in other embodiments, the inlet of the water pump 50 can be connected to a water source outside the water tank 20 to draw water from the water source outside the water tank 20.

[0028] The following is a description of the specific structure of the jet pump 40: Please see Figures 6 to 14As shown, the jet pump 40 includes main components such as a nozzle 410, a nozzle pipe 420, a baffle 430, and a buoyancy mechanism 440.

[0029] The nozzle 420 has an inlet end 421, an outlet end 422, and a water spraying channel 423 connecting the inlet end 421 and the outlet end 422. The inlet end of the nozzle 410 is connected to the outlet of the water pump 50. There is a flow passage 424 between the outlet end of the nozzle 410 and the inlet end 421 of the nozzle 420, which is open to the inner cavity of the water tank 20. The flow passage cross-sectional area of ​​the outlet end of the nozzle 410 is smaller than the flow passage cross-sectional area of ​​the inlet end 421 of the nozzle 420. When the outlet end of the nozzle 410 sprays water toward the inlet end 421 of the nozzle 420, the water in the water tank 20 is carried into the nozzle 420 through the flow passage 424 under the action of the Venturi action and sprayed out from the outlet end 422 of the nozzle 420 together with the water from the nozzle 410.

[0030] The baffle 430 is rotatably disposed inside the nozzle 420 to open or close the water spray channel 423.

[0031] The buoyancy mechanism 440 includes a float 441 and an adjusting member 442. The float 441 is adjustablely mounted on the adjusting member 442 so that the height of the float 441 when it is in the floating position is adjustable. The float 441 controls the baffle 430 to open or close the spray channel 423 according to the water level change of the water tank 20.

[0032] In this embodiment, the adjusting member 442 adopts a rigid screw structure. For example... Figure 9 As shown, when the float 441 is floating, the baffle 430 is opened by the adjusting member 442, opening the water spray channel 423. At this time, when the nozzle 410 sprays pressurized water towards the inlet end 421 of the spray pipe 420, under the action of the venturi, the water flow in the inner cavity of the water tank 20 will enter the water spray channel 423 through the flow gap 424, and be sprayed out from the outlet end 422 of the water spray channel 423 along with the water entering the water spray channel 423 from the nozzle 410. Figure 10 As shown, when the float 441 is falling, the baffle 430 is driven by the adjusting member 442 to close the water spray channel 423. At this time, the water jet from the nozzle 410 towards the spray pipe 420 is blocked by the baffle 430 and flows into the inner cavity of the water tank 20 through the flow gap 424. Of course, in other embodiments, for example, when the adjusting member 442 adopts a flexible chain structure, the baffle 430 can close the water spray channel 423 under the restoring force of the elastic member, the gravity of the counterweight, or the magnetic force of the magnetic attractor when the float 441 is falling.

[0033] In this embodiment, the jet pump 40 also includes a rocker arm 450. The first end 451 of the rocker arm is connected to one end of the adjusting member 442, and the second end 452 of the rocker arm is pivotally connected to the nozzle 420. The rotating end of the baffle 430 is connected to the second end 452 of the rocker arm. When the rocker arm 450 rotates around the second end 452 of the rocker arm under the drive of the adjusting member 442, the rocker arm 450 drives the baffle 430 to rotate around the rotating end of the baffle 430.

[0034] Specifically, the swing arm 450 includes a first arm 453 and a second arm 454 arranged in parallel, and a connecting rod 455 for connecting the first arm 453 and the second arm 454. The first ends of the first arm 453 and the second arm 454 are both connected to one end of the adjusting member 442. The second end of the first arm 453 is pivotally connected to the nozzle 420, and the second end of the second arm 454 is rotatably linked to the rotating end of the baffle 430.

[0035] In this embodiment, the rotating end of the baffle 430 is provided with a rotating shaft 431, the rotating shaft 431 extends outward to the nozzle 420, the second end 4541 of the second rod 454 is provided with a non-circular shaft hole 45411, the rotating shaft 431 is inserted into the shaft hole 45411, and the swing rod 450 rotates and is linked with the rotating end of the baffle 430 through the cooperation of the rotating shaft 431 and the shaft hole 45411, thereby driving the baffle 430 to rotate.

[0036] In this embodiment, the adjusting component 442 is a screw 4421, and a pivot rod 4422 is connected to the bottom end of the screw 4421. The two ends of the pivot rod 4422 are pivotally connected to the first ends of the first rod 453 and the second rod 454, respectively. The float 441 is screwed onto the screw 4421 to adjust its position on the screw 4421. (Refer to...) Figure 11 This is a schematic diagram of the float 441 being in a lower floating position on the screw 4421. At this time, as the water level in the water tank 20 drops, the float 441 will fall later, which will cause the baffle 430 to close the spray channel 423 later, resulting in a larger spray volume, that is, a larger flushing volume at the washing port 12. Figure 12 This is a schematic diagram of the float 441 being in a higher floating position on the screw 4421. At this time, as the water level in the water tank 20 drops, the float 441 will fall earlier, causing the baffle 430 to close the spray channel 423 earlier, resulting in less water spray and less flushing water at the washing port 12.

[0037] In this embodiment, the inner wall of the nozzle 420 is provided with a limiting step surface 425, and the baffle 430 closes the water spray channel 423 when it moves to abut against the step surface. Preferably, a sealing element is provided between the baffle 430 and the limiting step surface 425. In this embodiment, the sealing element is a sealing gasket 432 provided on the baffle 430.

[0038] In this embodiment, one side of the nozzle 420 protrudes radially outward to form a clearance cavity 426 in the inner cavity of the nozzle 420. The clearance cavity 426 is located between the inlet end 421 and the limiting step surface 425 of the nozzle 420. The inlet end 421 and the limiting step surface 425 of the nozzle 420 are axially aligned. The axial position of the clearance cavity 426 of the nozzle 420 is offset from the positions of the inlet end 421 and the limiting step surface 425 of the nozzle 420. When the water spray channel 423 is opened, the baffle 430 is located in the clearance cavity 426, so that the baffle 430 will not block the water flow when the water spray channel 423 sprays water, resulting in a better water spraying effect.

[0039] In this embodiment, the jet pump 40 further includes a base 460 with a water supply channel 461. The nozzle 410 is fixed to the base 460 and connected to the water supply channel 461. The inlet end 421 of the nozzle 420 is connected to the base 460, making the entire jet pump 40 an integral structure, which facilitates the installation of the jet pump 40. Specifically, the base 460 is provided with a retaining ring 462 surrounding the nozzle 410. The retaining ring 462 is provided with several elastic buckles spaced circumferentially. After the inlet end 421 of the nozzle 420 is inserted into the retaining ring 462, it is locked by the buckles, thereby connecting the nozzle 420 and the base 460. The water supply channel 461 is connected to the outlet of the water pump 50.

[0040] To make the overall structure more compact, a water pump mounting base 80 for mounting the water pump 50 can be provided on the nozzle 420 or the base 460. In this embodiment, the water pump mounting base 80 is specifically set on the base 460. The water pump mounting base 80 can be made independently of the base 460 and then fixedly connected, or the two can be directly integrally formed. This embodiment adopts the latter connection method.

[0041] Reference Figure 13 and Figure 14 In another embodiment of the present invention, the adjusting member 442 is a chain 4423, and the float 441 can be installed at different links of the chain 4423, thereby adjusting the different positions of the float 441 on the chain 4423. Figure 13 This is a schematic diagram of the float 441 being in a lower floating position on the chain 4423. At this time, as the water level in the water tank 20 drops, the float 441 will fall later, which will cause the baffle 430 to close the spray channel 423 later, resulting in a larger spray volume. Figure 14This is a schematic diagram showing the float 441 in a relatively high floating position on the chain 4423. At this point, as the water level in the tank 20 decreases, the float 441 will fall earlier, causing the baffle 430 to close the spray channel 423 earlier, resulting in a smaller spray volume. Because the chain is a flexible structure, when the float 441 is falling, the baffle 430 needs to close the spray channel 423 under the restoring force of the elastic element, the gravity of the counterweight, or the magnetic force of the magnetic attraction element.

[0042] In this embodiment, the nozzle 42 is a curved pipe, which includes a horizontal pipe section and a vertical pipe section. The horizontal pipe section of the curved pipe is fixedly installed at the washing port 12.

[0043] In this embodiment, a nozzle 90 is also provided through the washing port 12 and a connecting pipe 70 is used to fix the nozzle 90 and the water outlet of the transverse pipe section. The water inlet of the nozzle 90 extends outward from the washing port 12 and is sleeved with the water outlet of the transverse pipe section inside the connecting pipe 70. When the connecting pipe 70 is fixedly connected to the nozzle, it abuts against the outer and inner sides of the washing port 12 to clamp and fix it to the two sides of the washing port 12, thereby fixing the transverse pipe section of the spray pipe 42 and the nozzle 90 at the washing port 12.

[0044] In this embodiment, the hydraulic drain valve 30 adopts an existing structure with a clutch function. The structure is roughly as follows: the hydraulic drain valve 30 includes a valve body 31, a valve core 32 movably disposed on the valve body 31 to control the opening and closing of the drain port, a hydraulic component (not shown) with a hydraulic chamber, a clutch transmission component (not shown), and a buoyancy component (not shown). The hydraulic chamber is connected to the outlet of the water pump 50. The clutch transmission component includes a first part (not shown) and a second part (not shown) that are engaged in a clutch-transmission relationship. After the hydraulic component drives the valve core 32 to move upward through the clutch transmission component to open the drain port, the first part and the second part of the clutch transmission component disengage, thereby disconnecting the transmission of the hydraulic component to the valve core 32. The valve core 32 is supported by the buoyancy component and held in the position where the drain port is open. After the buoyancy component descends with the water level of the water tank 20, the valve core 32 resets and closes the drain port, and the first part and the second part of the clutch transmission component are reconnected.

[0045] In this embodiment, the water tank 20 is integrally formed behind the toilet bowl 11 of the seat 10, and the water level in the water tank 20 is lower than the upper surface of the toilet bowl 11. The water flowing out of the washing port 12 is used to wash the inner peripheral wall of the toilet bowl 11, and the spray port 13 is used to spray water onto the inlet of the sewage pipe (not shown) of the seat 10.

[0046] As can be seen from the above description of the present invention, compared with the prior art, the present invention, by setting up a water tank, a water pump, a hydraulic drain valve, and a jet pump, uses the hydraulic drain valve to control the opening of the drain outlet to deliver water from the water tank to the jet outlet for spraying and flushing the bottom of the toilet bowl. The jet pump delivers water from the water tank to the washing outlet to effectively flush the inner wall of the toilet bowl. Furthermore, the water pump outputs pressurized water to open the hydraulic drain valve and the jet pump respectively. This effectively avoids the problem of unstable water pressure that exists when using tap water to flush the toilet in the prior art. On the other hand, since the water pump only needs to drive the opening of the hydraulic drain valve and the jet pump, it is not necessary to directly use the water output from the water pump to flush the toilet bowl. Therefore, the required water pump power is smaller and the water pump cost is lower. In addition, the jet pump of the present invention is equipped with a buoyancy mechanism with a float. The float can control the opening and closing of the water spray channel according to the water level in the water tank, and the height of the float when it is in the floating position is adjustable. In this way, by adjusting the position of the float, the timing of the float's descent can be adjusted, thereby controlling the timing of the water spray channel closing and achieving the purpose of adjusting the jet pump's spray volume. The structure is simple, the water volume adjustment is convenient, and the function is reliable.

[0047] The above embodiments are only used to further illustrate the present invention, but the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. An adjustable toilet flushing device, characterized in that, include: The seat has a toilet bowl, the upper part of which is provided with a washing port and the lower part with a spray port; A water tank is provided to provide rinsing water to the washing port and the spray port. The water tank is provided with a drain port, which is connected to the spray port through a drainage channel. A hydraulic drain valve is located at the drain outlet of the water tank to control the opening and closing of the drain outlet; A jet pump is installed inside the water tank. The jet pump has a water spray channel. When the jet pump is turned on, it can carry water from the water tank into the water spray channel and deliver it to the washing port through the venturi action. The jet pump includes a buoyancy mechanism with a float. The float controls the opening and closing of the water spray channel according to the water level in the water tank. The height of the float when it is in the floating position is adjustable. A water pump supplies pressurized water to the hydraulic drain valve and the jet pump to open the hydraulic drain valve and the jet pump respectively; The jet pump includes a nozzle and a nozzle pipe. The nozzle pipe has an inlet end, an outlet end, and a water spraying channel connecting the inlet end and the outlet end. The inlet end of the nozzle is connected to the outlet of the water pump. There is a flow passage gap between the outlet end of the nozzle and the inlet end of the nozzle pipe, which opens into the inner cavity of the water tank. The flow passage cross-sectional area of ​​the outlet end of the nozzle is smaller than the flow passage cross-sectional area of ​​the inlet end of the nozzle pipe. When the outlet end of the nozzle sprays water toward the inlet end of the nozzle pipe, the water in the water tank is carried into the nozzle pipe through the flow passage gap under the action of the Venturi and sprayed out from the outlet end of the nozzle pipe together with the water from the nozzle. The jet pump also includes a baffle plate, which is rotatably disposed inside the spray pipe to open or close the water spray channel; The buoyancy mechanism also includes an adjusting component, and the float is adjustablely mounted on the adjusting component so that the height of the float when it is in the floating position is adjustable. The float controls the baffle to open or close the water spray channel according to the water level change of the water tank. When the float is floating, the baffle opens the water spray channel by adjusting the adjusting member; when the float is falling, the baffle closes the water spray channel by adjusting the adjusting member, or when the float is falling, the baffle closes the water spray channel under the elastic force of the elastic member, the gravity of the counterweight, or the magnetic force of the magnetic member.

2. The adjustable toilet flushing device according to claim 1, characterized in that, It also includes a water distribution pipe, which has an inlet, a first outlet, and a second outlet. The inlet of the water distribution pipe is connected to the outlet of the water pump. The first outlet is used to supply water to the hydraulic drain valve, and the second outlet is used to supply water to the jet pump.

3. The adjustable toilet flushing device according to claim 1, characterized in that, The water pump has two outlets. One outlet is used to supply water to the hydraulic drain valve, and the other outlet is used to supply water to the jet pump.

4. The adjustable toilet flushing device according to claim 1, characterized in that, The water pump's inlet is connected to the water tank to draw water from the tank, or the water pump's inlet is connected to a water source outside the tank to draw water from that source.

5. The adjustable toilet flushing device according to claim 1, characterized in that, The jet pump also includes a rocker arm, the first end of which is connected to one end of the adjusting member, the second end of which is pivotally connected to the nozzle, and the rotating end of the baffle is connected to the second end of the rocker arm. When the rocker arm rotates around the second end of the rocker arm under the drive of the adjusting member, the rocker arm drives the baffle to rotate around the rotating end of the baffle.

6. The adjustable toilet flushing device according to claim 1, characterized in that, The inner wall of the nozzle is provided with a limiting step surface. When the baffle moves to abut against the step surface, it closes the water spray channel. One side of the nozzle protrudes radially outward to form a relief cavity in the inner cavity of the nozzle. The relief cavity is located between the inlet end of the nozzle and the limiting step surface. The inlet end of the nozzle and the limiting step surface are axially aligned with each other in the nozzle. The axial position of the relief cavity is offset from the position of the inlet end of the nozzle and the limiting step surface. When the baffle opens the water spray channel, it is located in the relief cavity.

7. The adjustable toilet flushing device according to claim 1, characterized in that, The adjusting component is a screw or a chain.

8. The adjustable toilet flushing device according to claim 1, characterized in that, The nozzle is a curved pipe, which includes a horizontal pipe section and a vertical pipe section. The horizontal pipe section of the curved pipe is fixedly installed at the washing port. It also includes a nozzle that passes through the washing port and a connecting pipe for fixing the nozzle and the water outlet end of the horizontal pipe section together. The water inlet end of the nozzle extends outward from the washing port and is sleeved inside the connecting pipe with the water outlet end of the horizontal pipe section. When the connecting pipe is fixedly connected to the nozzle, it abuts against the outer and inner sides of the washing port to clamp and fix it to the two sides of the washing port.

9. The adjustable toilet flushing device according to claim 1, characterized in that, The jet pump also includes a base with a water supply channel, the nozzle is fixed to the base and connected to the water supply channel, the inlet end of the spray pipe is connected to the base, and a water pump mounting bracket for installing the water pump is provided on the spray pipe or the base.

10. The adjustable toilet flushing device according to claim 1, characterized in that, The hydraulic drain valve includes a valve body, a valve core movably disposed in the valve body to control the opening and closing of the drain outlet, a hydraulic assembly with a hydraulic chamber, a clutch transmission assembly, and a buoyancy assembly. The hydraulic chamber is connected to the outlet of the water pump. The clutch transmission assembly includes a first part and a second part that engage and disengage. After the hydraulic assembly drives the valve core to move upward through the clutch transmission assembly to open the drain outlet, the first part and the second part of the clutch transmission assembly disengage, thereby breaking the transmission of the hydraulic assembly to the valve core. The valve core is supported by the buoyancy assembly and held in the position where the drain outlet is open. After the buoyancy assembly descends with the water level in the water tank, the valve core resets and closes the drain outlet, and the first part and the second part of the clutch transmission assembly are reconnected.

11. The adjustable toilet flushing device according to any one of claims 1 to 10, characterized in that, The water tank is integrally formed behind the toilet bowl of the seat body, and the water level in the water tank is lower than the upper surface of the toilet bowl.

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