Closestool flushing device and closestool

Abstract

A closestool flushing device comprises a flushing pipe, a foam inlet is formed in the pipe wall of the flushing pipe, a foam outlet pipe connected with the foam inlet is arranged in the flushing pipe, one end of the foam outlet pipe is connected with the foam inlet, and the other end of the foam outlet pipe extends towards a water outlet of the flushing pipe. In this way, foam entering the flushing pipe from the foam inlet can be guided by the foam outlet pipe to flow towards the water outlet, the foam outlet effect is better, the flow direction of the foam is directional, the foam can flow out of the water outlet more evenly and rapidly, the foam flows out of the flushing pipe, and a foam shield is formed in the closestool to prevent falling objects from causing liquid splashing and isolate odor. And due to the arrangement of the foam outlet pipe, the situation of foam retention or backflow in the flushing pipe can be prevented.

Description

Technical Field

[0001] The utility model relates to the field of bathrooms, in particular to a toilet flushing device. Background Art

[0002] Chinese patent document CN118187226A discloses a cleaning device and a toilet equipped with the device, including a water-gas mixing tube, the water-gas mixing tube having a first flow channel for introducing liquid, the first flow channel including a first channel section and a second channel section that are interconnected, the connection between the first channel section and the second channel section is defined as a first liquid inlet, and the first liquid inlet is offset relative to the axial cross-section of the second channel section so that the liquid enters the second channel section from the first channel section to form a vortex and splash water, thereby increasing the contact area between the liquid and the gas, forming more bubbles, and increasing the cleaning effect of the foaming device. In addition, the foaming device is also installed together with the main water pipe, so that while cleaning the toilet, the same water pipe can also be used to inject foaming cleaning liquid.

[0003] The above solution lacks clear directionality after the foam enters the water spray pipe, so the foam does not flow accurately in the direction of water outlet, so the foaming effect is poor, and there may be problems such as foam retention or backflow in the water spray pipe. Utility Model Content

[0004] The purpose of the utility model is to provide a toilet flushing device with good foaming effect and a toilet using the toilet flushing device.

[0005] The purpose of this utility model is achieved through the following technologies:

[0006] A toilet flushing device includes a flush pipe, a foam inlet is formed on the wall of the flush pipe, a bubble outlet pipe connected to the foam inlet is provided in the flush pipe, one end of the bubble outlet pipe is connected to the foam inlet, and the other end of the bubble outlet pipe extends toward the water outlet of the flush pipe, so that foam entering the flush pipe from the foam inlet will be guided by the bubble outlet pipe to flow in the direction of the water outlet, thereby achieving a better bubble outlet effect, making the flow of foam directional, and allowing foam to flow out of the water outlet more evenly and quickly. The foam flows out of the flush pipe, forming a foam shield in the toilet to prevent liquid splashing caused by falling objects and to isolate odors. In addition, due to the provision of the bubble outlet pipe, foam retention or backflow in the flush pipe can be prevented.

[0007] It also includes a gas-liquid mixer, which includes a gas-liquid input piece and a connecting piece. The gas-liquid input piece is connected to the foam inlet through the connecting piece. The connecting piece is rotatably sealed on the outer circumference of the flushing pipe. The connecting piece and the outer circumference of the flushing pipe form an annular channel connected to the foam inlet. The connecting piece forms a first channel, one end of the first channel is connected to the gas-liquid input piece, and the other end is connected to the annular channel. The gas-liquid input piece includes a shell, and a liquid inlet channel and an air inlet channel are formed in the shell. The liquid inlet channel and the air inlet channel are respectively connected to one end of the first channel. The shell is provided with a one-way sealing The one-way valve plate blocks the air inlet channel, so that the liquid entering the first channel from the liquid inlet channel can hit the channel wall in the first channel and foam with the air entering the air inlet channel, and then enter the foam inlet through the annular channel, and finally be discharged into the flushing pipe from the bubble outlet pipe. When no liquid is entering, the one-way valve plate can block the air inlet channel. When liquid is entering, a gap is generated between the one-way valve plate and the air inlet channel due to the influence of negative pressure, so that gas can enter. The function of the annular channel is to ensure that no matter what angle the connecting part is rotated to, the foam in the first channel can still be connected to the foam inlet through the annular channel.

[0008] The one-way valve disc is made of rubber or plastic, and an adapter shaft is provided on the one-way valve disc. An adapter hole is formed on the shell to match the two ends of the adapter shaft. The two ends of the adapter shaft are inserted into the adapter hole. Rubber or plastic is more durable and has a good sealing effect. The one-way valve disc is arranged on the shell through the adapter shaft, which facilitates the installation of the one-way valve disc and has a simple structure.

[0009] The liquid inlet channel includes a main section and a branch section, the branch section is connected to one end of the main section, and the branch section is arranged opposite to one end of the first channel. The cross-section of the branch section is one-third to one-half of the cross-section of the main section. The liquid enters the branch section from the main section and enters the first channel through the branch section. The smaller cross-section of the branch section can have a pressurizing effect, so that the impact force of the liquid entering the first channel from the branch section is greater, the contact area between the liquid and the gas is larger, and the foaming is more complete.

[0010] The first channel extends along the tangential direction of the annular channel. This arrangement allows the foam in the first channel to have a faster speed when entering the annular channel.

[0011] The connecting member includes a tubular portion for forming the first channel, and the shell is formed with a connecting groove adapted to the tubular portion. The connecting groove is connected to the liquid inlet channel and the air inlet channel, and a sealing ring is provided between the tubular portion and the connecting groove. The connection between the connecting groove and the air inlet channel can facilitate the installation of the one-way valve plate into the shell, and the sealing ring can prevent water leakage at the connection between the tubular portion and the connecting groove.

[0012] The tubular portion is provided with a snap portion, and the groove wall of the connecting groove is formed with a snap hole that cooperates with the snap portion. The snap portion is embedded in the snap hole to achieve a snap connection between the tubular portion and the connecting groove. The snap connection structure is stable and simple, and is convenient for disassembly and assembly.

[0013] The bubble outlet pipe is arranged in parallel with the flushing pipe, so that the foam can flow well to the water outlet of the flushing pipe when flowing out of the bubble outlet pipe.

[0014] The outer peripheral surface of the bubble outlet pipe is connected to the inner wall of the flushing pipe, and the bubble outlet pipe and the flushing pipe are integrally formed, so that the bubble outlet pipe has higher strength and is convenient for production.

[0015] A toilet, characterized by comprising the toilet flushing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the toilet flushing device of the present utility model.

[0017] Figure 2 It is a side view of the toilet flushing device of the present utility model.

[0018] Figure 3 It is a top view of the toilet flushing device of the present utility model.

[0019] Figure 4 for Figure 3 AA cross-sectional view.

[0020] Figure 5 for Figure 3 BB cross-sectional view.

[0021] Figure 6 This is an exploded view of the components of the toilet flushing device of the present invention.

[0022] Figure 7 This is an exploded view of the components of the toilet flushing device of the present invention from another perspective.

[0023] Figure 8 The figure is a schematic structural diagram of a toilet flushing device according to the present invention arranged on a toilet. DETAILED DESCRIPTION

[0024] Reference Figures 1 to 8 As shown, a toilet flushing device includes a flushing pipe 1 and a gas-liquid mixer 2. The flushing pipe 1 is also called an upper flushing pipe. Figure 8As shown, the flush pipe 1 is installed on the upper edge of the inner side of the toilet bowl of the ceramic base of the toilet. When flushing, a spiral flushing water flow can be formed on the inner wall of the toilet bowl. A nozzle 14 with an adjustable angle is provided at the front end of the flush pipe 1. When the flush pipe 1 is installed in the toilet, the nozzle 14 can adjust the angle to adapt to the usage. A mounting part 5 is provided at the rear end of the nozzle 14. An external thread is formed on the flush pipe 1. The mounting part 5 is two threaded pressure rings with internal threads that cooperate with the flush pipe 1. The nozzle 14 passes through the through-hole on the inner wall of the toilet. The two threaded pressure rings are located one in front and one behind the inner wall of the toilet, and are tightened with the external thread of the flush pipe 1 to connect the flush pipe 1 to the inner wall of the toilet bowl. A fastener 6 is provided at the rear end of the flush pipe 1. The fastener 6 is a fastening nut. The fastening nut is threaded with the flush pipe 1, and the fastening nut can be tightened toward the connecting part 4 to prevent the connecting part 4 from moving laterally and detaching from the flush pipe 1.

[0025] The gas-liquid mixer includes a gas-liquid input part 2 and a connecting part 4. The pipe wall of the flushing pipe 1 is provided with a foam inlet 13 connected to the connecting part 4. The gas-liquid input part 2 is connected to the foam inlet 13 through the connecting part 4. The connecting part 4 is rotatably sealed and sleeved on the outer peripheral surface of the flushing pipe 1. The connecting part 4 and the outer peripheral surface of the flushing pipe 1 form an annular channel 12 connected to the foam inlet 13, and the connecting part 4 forms a first channel 41. One end of the first channel 41 is connected to the gas-liquid input part 2, and the other end is connected to the annular channel 12. In this way, the liquid and gas entering from the gas-liquid input part 2 can be foamed in the first channel 41, and then the foam enters the flushing pipe 1 through the annular channel 12 and the foam inlet 13. The first channel 41 extends tangentially along the annular channel 12. This arrangement allows the foam in the first channel 41 to enter the annular channel 12 at a faster speed. The connector 4 and the flush pipe 1 are rotatable, so that during installation, different angles can be adapted and the connector 4 can be rotated to the installation position. Due to the arrangement of the annular channel 12, no matter to what angle the connector 4 is rotated, the foam in the first channel 41 can enter the annular channel 12, and sealing rings 15 are provided between the flush pipe 1 and the connector 4 at the left and right ends of the annular channel 12, thereby realizing a sealed sleeve arrangement between the connector 4 and the flush pipe 1.

[0026] The gas-liquid input member 2 includes a shell, in which a liquid inlet channel 21 and an air inlet channel 22 are formed. The liquid inlet channel 21 and the air inlet channel 22 are respectively connected to one end of the first channel 41, and a one-way valve plate 23 that can unidirectionally block the air inlet channel 22 is provided in the air inlet channel 22. The liquid enters the first channel 41 through the liquid inlet channel 21, and the gas enters the first channel 41 through the air inlet channel 22, and then foaming can be performed. The one-way valve plate 23 can prevent water overflow. The one-way valve plate 23 is silicone or rubber, which is not limited here. A transfer shaft 231 is formed on the one-way valve plate 23, and a transfer hole 26 adapted to the two ends of the transfer shaft 231 is formed on the shell. The two ends of the transfer shaft 231 are inserted into the transfer hole 26. Rubber or plastic is more durable. The one-way valve disc 23 on the market is usually placed directly in the air inlet channel 22, and needs to be sealed under the action of rising liquid level, which may cause water overflow and poor sealing effect. The utility model adopts the structure of the adapter shaft 231 so that the one-way valve disc 23 can always close the air inlet channel 22, and will deform or rotate due to negative pressure when liquid enters the liquid inlet channel 21, so that the air inlet channel 22 can be ventilated, with good sealing effect, and will not block the air inlet channel 22.

[0027] The liquid inlet channel 21 includes a main section 211 and a branch section 212. The branch section 211 is connected to one end of the main section 211, and the branch section 212 is arranged opposite to one end of the first channel 41. The liquid enters the branch section 212 from the main section 211 and enters the first channel 41 through the branch section 212. The angle between the main section 211 and the branch section 212 is roughly vertical, and the branch section 212 is roughly parallel to the length direction of the first channel 41. The cross-section of the branch section 212 is one-third to one-half of the cross-section of the main section 211. In this way, the liquid pressure flowing from the main section 211 into the branch section 212 can be greater, the collision with the channel wall of the first channel 41 can be more intense, and the contact area with the air can be larger, so the foaming effect is better.

[0028] The connector 4 includes a tubular portion 42 for forming a first channel 41. The housing of the gas-liquid input member 2 is formed with a connecting groove 24 that matches the tubular portion 42. The connecting groove 24 communicates with the liquid inlet channel 21 and the gas inlet channel 22, facilitating the installation of the one-way valve plate 23 into the housing. A sealing ring 25 is provided between the tubular portion 42 and the connecting groove 24 to prevent water leakage at the connection between the tubular portion 42 and the connecting groove 24. The tubular portion 42 is provided with a snap-fit portion 43. The groove wall of the connecting groove 24 is formed with a snap-fit hole 27 that cooperates with the snap-fit portion 43. The snap-fit portion 43 is embedded in the snap-fit hole 27 to achieve a snap-fit connection between the tubular portion 42 and the connecting groove 24. The snap-fit connection structure is stable and simple, making it easy to assemble and disassemble.

[0029] The flush pipe 1 is provided with a bubbler pipe 3 connected to the foam inlet 13. One end of the bubbler pipe 3 is connected to the foam inlet 13, and the other end of the bubbler pipe 3 extends toward the water outlet 11 of the flush pipe 1. This allows the foam generated by the gas-liquid mixer 2 to be guided toward the water outlet 11 by the bubbler pipe, resulting in a more effective bubbler and a directional foam flow. The foam flows out of the water outlet 11 more evenly and quickly, forming a foam shield in the toilet bowl to prevent liquid splashing caused by falling objects and isolate odors. The bubbler pipe 3 also prevents foam from stagnating or backflowing in the flush pipe 1. The bubbler pipe 3 is arranged parallel to the flush pipe 1, ensuring that the foam flows smoothly toward the water outlet 11 of the flush pipe 1. The outer circumference of the bubbler pipe 3 is connected to the inner wall of the flush pipe 1, and the bubbler pipe 3 is integrally formed with the flush pipe 1, which increases its strength and facilitates production.

[0030] The above description is merely a preferred embodiment of the present invention and therefore cannot be used to limit the scope of implementation of the present invention. In other words, equivalent changes and modifications made according to the scope of the patent application and the contents of the specification of the present invention should still fall within the scope of the present patent.

Claims

1. A toilet flushing device, comprising a flushing pipe, characterized in that: A foam inlet is provided on the wall of the flushing pipe, and a bubble outlet pipe connected to the foam inlet is provided in the flushing pipe. One end of the bubble outlet pipe is connected to the foam inlet, and the other end of the bubble outlet pipe extends toward the water outlet of the flushing pipe.

2. The toilet flushing device according to claim 1, characterized in that: It also includes a gas-liquid mixer, which includes a gas-liquid input piece and a connecting piece. The gas-liquid input piece is connected to the foam inlet through the connecting piece. The connecting piece is rotatably sealed and sleeved on the outer peripheral surface of the flushing pipe. The connecting piece and the outer peripheral surface of the flushing pipe form an annular channel connected to the foam inlet. The connecting piece forms a first channel, one end of the first channel is connected to the gas-liquid input piece, and the other end is connected to the annular channel. The gas-liquid input piece includes a shell, and a liquid inlet channel and an air inlet channel are formed in the shell. The liquid inlet channel and the air inlet channel are respectively connected to one end of the first channel. A one-way valve sheet that can unidirectionally block the air inlet channel is provided in the shell.

3. The toilet flushing device according to claim 2, characterized in that: The one-way valve disc is made of rubber or plastic. A transfer shaft is provided on the one-way valve disc. Transfer holes matching the two ends of the transfer shaft are formed on the housing. The two ends of the transfer shaft are inserted into the transfer holes.

4. The toilet flushing device according to claim 2, characterized in that: The liquid inlet channel includes a main section and a branch section, the branch section is connected to one end of the main section, the branch section is arranged opposite to one end of the first channel, and the cross section of the branch section is one third to one half of the cross section of the main section.

5. The toilet flushing device according to claim 2, characterized in that: The first channel extends along a tangential direction of the annular channel.

6. The toilet flushing device according to claim 2, characterized in that: The connecting member includes a tubular portion for forming the first channel, the shell is formed with a connecting groove adapted to the tubular portion, the connecting groove is communicated with the liquid inlet channel and the air inlet channel, and a sealing ring is provided between the tubular portion and the connecting groove.

7. The toilet flushing device according to claim 6, characterized in that: The tubular portion is provided with a snap portion, and a snap hole cooperating with the snap portion is formed on the groove wall of the connecting groove. The snap portion is embedded in the snap hole to achieve a snap connection between the tubular portion and the connecting groove.

8. The toilet flushing device according to any one of claims 1 to 7, characterized in that: The bubble outlet pipe is arranged in parallel with the flushing pipe.

9. The toilet flushing device according to any one of claims 1 to 7, characterized in that: The outer peripheral surface of the bubble outlet pipe is connected to the inner wall of the flushing pipe, and the bubble outlet pipe and the flushing pipe are integrally formed.

10. A toilet, characterized in that: A toilet flushing device comprising the toilet flushing device according to any one of claims 1 to 9.

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