Toilet drainage structure

Abstract

The invention relates to the technical field of toilet drainage construction, and in particular to a toilet drainage structure, comprising a drainage riser and a first horizontal main pipe connected to the drainage riser; a first branch pipe is arranged at a toilet drain outlet, the first branch pipe is connected to the first horizontal main pipe; an inverted U-shaped water seal is arranged on the first horizontal main pipe, the inverted U-shaped water seal is located at the rear side of the first branch pipe, and the other end of the inverted U-shaped water seal is connected to the second horizontal main pipe; second branches are arranged under a floor drain outlet, a wash basin outlet, and a shower outlet, respectively, and the second branch pipes are connected to the second horizontal main pipe; a water storage part is formed between the second branch pipe and the inverted U-shaped water seal, and between two adjacent second branches; the water storage parts are connected to each other, and the water stored in the water storage part can be supplemented by using any drainage tool, so as to avoid the water seal of the drainage tool that is not frequently used from drying up and returning upward; compared with the S-shaped water seal arranged downward, the inverted U-shaped water seal is more space-saving.

Description

Technical Field

[0001] The invention relates to the technical field of toilet drainage construction, in particular to a toilet drainage structure. Background Art

[0002] The odor in the bathroom is a common problem with various reasons. The application of water seals is a common method to solve this problem. The drainage structure of the bathroom in traditional buildings usually includes a drainage riser and a horizontal dry pipe installed under drainage appliances such as toilets, floor drains, and washbasins. A downward S-bend water seal is set on the horizontal dry pipe, and a horizontal dry pipe is set behind the water seal to connect to the drainage riser. However, in this practice, the water seals under several drainage appliances are set separately, and the water in the water seals of drainage appliances that are not frequently used is easy to dry up, which makes the bathroom prone to odor. Summary of the invention

[0003] The present invention aims to solve the above-mentioned problem, thereby providing a toilet drainage structure which can prevent the stored water from drying up and avoid the toilet from smelling bad.

[0004] The invention solves the above problem, and the technical solution adopted is:

[0005] A toilet drainage structure comprises a drainage riser and a first horizontal main pipe connected to the drainage riser; a first branch pipe is arranged at a toilet drain outlet, the first branch pipe is arranged vertically downward and connected to the first horizontal main pipe; an inverted U-shaped water seal is arranged on the first horizontal main pipe, the inverted U-shaped water seal is located at the rear side of the first branch pipe, and the other end of the inverted U-shaped water seal is connected to a second horizontal main pipe; second branches are arranged under a floor drain outlet, a wash basin outlet, and a shower outlet, respectively, the second branches are arranged vertically downward and connected to the second horizontal main pipe; a water storage portion is formed between the inverted U-shaped water seal, the second branch pipe, and the second horizontal main pipe.

[0006] Compared with the prior art, the present invention adopting the above technical solution has the following outstanding features:

[0007] 1. The inverted U-shaped water seal is used to naturally form a water storage part between the second branch pipe and the inverted U-shaped water seal. There is no need to set it up separately under each drain outlet, which makes construction more convenient. 2. The water storage parts are interconnected, and the water in the water storage part can be replenished by using any drainage device, so as to avoid the water seal of the drainage device that is not frequently used from drying up and bubbling upward. 3. Compared with the S-shaped water seal set downward, the inverted U-shaped water seal of the horizontal main pipe turns the water seal upward, which saves more space. Compared with the traditional method, the thickness of the ceiling can reduce the height of one water seal, thereby expanding the available height of the bathroom. 4. Compared with only setting an S-bend water seal behind the drain outlet of the toilet, this structure increases the amount of water stored in the water storage part. Under the premise of consistent natural evaporation conditions of water, the water storage amount is large and the water seal exists for a long time.

[0008] Preferably, a further technical solution of the present invention is:

[0009] The inverted U-shaped water seal is made of the third horizontal main pipe, including a horizontal pipe and two vertical pipes connected at both ends of the horizontal pipe. The height of the inverted U-shaped water seal is 50mm-60mm; there is a 90-degree angle between the horizontal pipe and the vertical rod to prevent the odor from the toilet drain from flowing back to the floor drain, washbasin drain, shower drain and other locations.

[0010] The first horizontal main pipe and the second horizontal main pipe are located at the same horizontal height, and the height of the second branch pipe is greater than the height of the inverted U-shaped water seal, so as to facilitate water storage and prevent water overflow.

[0011] A first inspection port is provided at one end of the second horizontal main pipe away from the inverted U-shaped water seal, and a horizontal extension portion is also connected to the end of the first horizontal main pipe connected to the inverted U-shaped water seal, on which a second inspection port is provided, for easy inspection when the pipelines are blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a toilet drainage structure according to an embodiment of the present invention;

[0013] Figure 2 It is a structural schematic diagram of another toilet drainage structure according to an embodiment of the present invention.

[0014] In the figure: 1. Floor; 2. Drainage riser; 3. First horizontal main pipe; 4. First branch pipe; 5. Inverted U-shaped water seal; 6. Second branch pipe; 7. Second horizontal main pipe; 8. First inspection port; 9. Second inspection port; 10. Water storage part. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0016] like Figure 1As shown, a toilet drainage structure comprises a drainage riser 2 and a first horizontal main pipe 3 connected to the drainage riser 2 (the first horizontal main pipe 3 is located at the lower side of the floor 1); a toilet drain is arranged near the drainage riser 2, a first branch pipe 4 is arranged at the toilet drain, the first branch pipe 4 is arranged vertically downward and connected to the first horizontal main pipe 3; an inverted U-shaped water seal 5 is arranged on the first horizontal main pipe 3, the inverted U-shaped water seal 5 is located at the rear side of the first branch pipe 4, and the other end of the inverted U-shaped water seal 5 is connected to a second horizontal main pipe 7; the toilet drain is located on the left side of the inverted U-shaped water seal 5, and the floor drain, wash basin drain, and shower drain are connected to each other. The water outlet is located on the right side of the inverted U-shaped water seal 5; a second branch pipe 6 is respectively arranged under the floor drain outlet, the wash basin outlet, and the shower outlet, and the second branch pipe 6 is arranged vertically downward and connected to the second horizontal main pipe 7; due to gravity, in the absence of sufficient water flow, the water flowing down the floor drain outlet, the wash basin outlet, and the shower outlet cannot be discharged to the drainage vertical rod through the inverted U-shaped water seal 5, and a water storage part 10 is formed between the inverted U-shaped water seal 5, the second branch pipe 6, and the second horizontal main pipe 7, which can prevent the odor under the toilet outlet from returning to the floor drain outlet, the wash basin outlet, and the shower outlet. The first horizontal main pipe 3 and the second horizontal main pipe 7 are at the same horizontal height, and the height of the second branch pipe 6 is greater than the height of the inverted U-shaped water seal 5 to prevent the stored water from overflowing.

[0017] The inverted U-shaped water seal 5 is made of the third horizontal main pipe, including a horizontal pipe and two vertical pipes connected at both ends of the horizontal pipe. The height of the inverted U-shaped water seal 5 is 50mm-60mm; the water seal area is greater than or equal to 10cm*12cm; there is a 90-degree angle between the horizontal pipe and the vertical rod to prevent the odor from the toilet drain from flowing back to the floor drain, wash basin drain, shower drain and other locations.

[0018] like Figure 2 As shown, a first inspection port 8 is provided at one end of the second horizontal main pipe 7 away from the inverted U-shaped water seal 5, and a horizontal extension portion is also connected to one end of the first horizontal main pipe 3 connected to the inverted U-shaped water seal 5, on which a second inspection port 9 is provided, for easy inspection when the pipelines are blocked.

[0019] During construction, the toilet drain is close to the drainage riser 2, and the first branch pipe 4 is installed under the toilet drain. The first branch pipe 4 is connected to the first horizontal main pipe 3, and then an inverted U-shaped water seal 5 is constructed after the first horizontal main pipe 3. The inverted U-shaped water seal 5 is made of the third horizontal main pipe, and the water seal height is greater than 50mm; the second horizontal main pipe 7 is connected behind the inverted U-shaped water seal 5, and the floor drain drain, washbasin drain, and shower drain (except the toilet drain in the bathroom) are all connected to the second horizontal main pipe 7 using the second branch pipe 6. When in use, when using a toilet, water is directly discharged from the first horizontal main pipe 3 to the drainage riser 2. When using a wash basin, shower, or floor drain, if the drainage is large and the water pressure is sufficient, the water flows directly from the second branch pipe 6 to the second horizontal main pipe 7, and flows to the inverted U-shaped water seal 5, the first horizontal main pipe 3, and the drainage riser 2; the water flow rate in the latter section is reduced and cannot pass through the inverted U-shaped water seal 5, and water will be stored in the second horizontal main pipe 7, the second branch pipe 6, and the vertical pipe on the right side of the inverted U-shaped water seal 5, which serves as a water storage part to prevent odor from rising.

[0020] A water reservoir is provided under each drain outlet in the bathroom except the toilet drain outlet, and the water reservoirs are interconnected. The water in the water reservoir can be replenished by using any drainage device to avoid the water seal of the drainage device that is not frequently used from drying up and odor flowing upward. This structure can effectively prevent the water reservoir from drying up and reduce the entry of harmful gases into the room.

[0021] The above description is only a preferred feasible embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made using the contents of the present specification and its drawings are included in the scope of rights of the present invention.

Claims

1. A toilet drainage structure, comprising a drainage riser and a first horizontal main pipe connected to the drainage riser; Features: A first branch pipe is arranged at the drain of the toilet, the first branch pipe is arranged vertically downward and connected to the first horizontal main pipe; an inverted U-shaped water seal is arranged on the first horizontal main pipe, the inverted U-shaped water seal is located at the rear side of the first branch pipe, and the other end of the inverted U-shaped water seal is connected to the second horizontal main pipe; second branches are arranged under the drain of the floor drain, the drain of the wash basin and the drain of the shower respectively, the second branch pipe is arranged vertically downward and connected to the second horizontal main pipe; a water storage part is formed between the inverted U-shaped water seal, the second branch pipe and the second horizontal main pipe; the first horizontal main pipe and the second horizontal main pipe are located at the same horizontal height, and the height of the second branch pipe is greater than the height of the inverted U-shaped water seal; a first inspection port is arranged at one end of the second horizontal main pipe away from the inverted U-shaped water seal, and one end of the first horizontal main pipe connected to the inverted U-shaped water seal is also connected to a horizontal extension part, and a second inspection port is arranged on the horizontal extension part.

2. The toilet drainage structure according to claim 1, Features: The inverted U-shaped water seal is made of the third horizontal main pipe, including a horizontal pipe and two vertical pipes connected at both ends of the horizontal pipe. The height of the inverted U-shaped water seal is 50mm-60mm.

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