A deodorizer for squat toilet
By designing a squat toilet odor preventer with a check valve structure, one-way drainage is achieved when the drainage equipment is damaged. This solves the problems of squat toilet drain blockage devices failing to prevent odors, insects, rodents, and sewage backflow, thus avoiding economic losses caused by water leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN QINGYE INDOOR ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-12
AI Technical Summary
Existing toilet drain sealing devices cannot achieve one-way drainage when drainage equipment is damaged, leading to water leakage and economic losses, and are also ineffective in preventing odors and insects and rodents.
An odor preventer consisting of a shell and a drainage check pipe was designed. The check structure achieves one-way sealing and drainage. The sewage outlet of the squat toilet is blocked by adjusting the handle. The check gate automatically opens to drain water under the impact of water flow. The magnetic attraction achieves one-way sealing.
It effectively prevents odors and rodent intrusion, prevents sewage backflow, avoids water leakage and spread, and achieves a safe and reliable one-way drainage function.
Smart Images
Figure CN224351357U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of odor control technology, and more specifically, to an odor control device for squat toilets. Background Technology
[0002] With societal development, people are increasingly emphasizing their living environment and hygiene. Squat toilets, as a traditional excretion facility, especially those with direct-discharge designs, are common in most households. However, due to the lack of a water trap, if the drain outlet is not properly sealed, it can not only cause foul odors affecting the indoor living environment, but in severe cases, it can also lead to blockages in the drain pipes, causing sewage backflow and allowing insects and rodents to crawl out and damage the house. Therefore, to improve the environment of squat toilets, people often seal the drain outlet when the toilet is not in use to prevent odors, insects, rodents, and sewage backflow.
[0003] However, the common method for sealing the sewage outlet of squat toilets is to use a traditional squat toilet plug nested inside the outlet to achieve a complete seal. While this can meet the intended requirements of odor prevention, insect and rodent prevention, and sewage backflow prevention, toilets with squat toilets are usually equipped with numerous water pipes and water-related equipment. If these facilities are damaged or leak, the sealed sewage outlet will be unable to drain, causing water to spread throughout the room and resulting in incalculable economic losses. This method is insufficient to meet practical application needs.
[0004] How to solve the above-mentioned technical difficulties has become an urgent technical problem to be solved. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide an odor-proof device for squat toilets that can prevent odor, backflow, insects and rodents, and allow unidirectional drainage to the sewage outlet of the squat toilet.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An odor preventer for squat toilets includes a housing for installation on the drain outlet of the squat toilet; a drainage check pipe is provided inside the housing for unidirectionally closing the cavity of the housing, and the flow direction of the drainage check pipe is unidirectional from the outside to the drain outlet of the squat toilet; a handle is also provided on the drainage check pipe for adjusting the drainage check pipe and the housing to be installed and removed together on the drain outlet of the squat toilet to facilitate switching the opening and closing of the drain outlet.
[0008] Preferably, the drainage check pipe includes a drainage pipe disposed within the housing, with both ends of the drainage pipe nested and fitted together with the inner walls of the top and bottom of the housing to seal the cavity of the housing. A check structure for unidirectional sealing of the drainage pipe is provided within the drainage pipe to achieve unidirectional flow of liquid from the outside to the toilet drain outlet. The drainage check pipe is connected to the handle through the drainage pipe.
[0009] Preferably, the drainage pipe includes a lower drain pipe nested and fitted onto the bottom opening of the housing, with the upper end of the lower drain pipe extending into the housing. An upper drain pipe, which is flared in shape, is fitted onto the top of the lower drain pipe, and the outer wall of the top of the upper drain pipe is nested and fitted together with the top opening of the housing to achieve cavity closure. A drain cover for guiding external liquid into the upper drain pipe is also fitted onto the top of the upper drain pipe. The check valve structure is embedded in the upper drain pipe, and the handle is connected to the drain cover.
[0010] Preferably, the check valve structure includes a hollow tube nested and attached to the bottom opening of the upper drain pipe, the bottom opening of the hollow tube being inclined and extending into the lower drain pipe. A cavity for unidirectionally closing the hollow tube from bottom to top is provided on the bottom opening of the hollow tube to achieve odor prevention, backflow prevention, and insect and rodent prevention. The check valve flows unidirectionally from top to bottom to satisfy unidirectional drainage to the toilet drain outlet.
[0011] Preferably, the check valve includes a gate plate hinged to the upper end of the bottom opening of the hollow tube for movably sealing the cavity of the hollow tube. A movable counterweight block is movably disposed on the hinged end of the gate plate, which moves under its own weight to push the gate plate to cover the bottom opening of the hollow tube in normal operation. Magnetic blocks are also provided on the inner side wall of the lower end of the hollow tube and on the lower end of the gate plate. The two magnetic blocks magnetically attract each other in normal operation to magnetically attach the gate plate to the bottom opening of the hollow tube to achieve cavity closure.
[0012] Preferably, the drain cover includes an upper cover body sleeved on the top of the upper drain pipe, with the outer edge of the upper cover body nested and fitted together with the top outer edge of the housing. At least one inlet for draining external liquid to the upper drain pipe is provided on the top of the upper cover body, and a socket for engaging with the handle is provided on the top of the upper cover body via a crossbeam.
[0013] Preferably, the handle includes an extension rod inserted into the socket, and a handle is sleeved on the end of the extension rod away from the socket to facilitate gripping and moving the extension rod together with the drain check pipe and the housing.
[0014] Preferably, the upper cover, crossbeam, and socket are integrally formed.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] In this invention, to improve the sanitary environment of squat toilets, when the squat toilet is not in use, the drain check pipe, along with its housing, can be lifted and moved by holding the handle and sealed and fitted onto the external drain outlet of the squat toilet to block it. Since the drain check pipe is a one-way flow design, the flow direction from below the squat toilet drain outlet to the outside of the squat toilet is non-adjustable and closed, while the flow direction from the outside of the squat toilet to below the drain outlet is adjustable. Therefore, when the squat toilet is not draining, the one-way sealing effect of the drain check pipe prevents odors from escaping from below the drain outlet into the environment, thus avoiding backflow and affecting the indoor living environment. It also prevents insects and rodents from crawling out of the drain pipe and entering the room to cause damage. Furthermore, it prevents sewage backflow when the drain pipe is blocked, providing excellent odor prevention, insect and rodent control, and sewage backflow prevention effects. In addition, when the water pipes or water-related equipment in the squat toilet area are damaged and leak, the water will flow through the squat toilet's pit to the drainage check pipe. The check component of the drainage check pipe opens under the impact of the water's gravity to carry out the drainage operation. When there is no water, the check component of the drainage check pipe automatically closes, which can realize the one-way drainage function to the squat toilet's sewage outlet. This completes the drainage operation to prevent leaks from spreading indoors and causing incalculable economic losses due to flooding. Therefore, this utility model has the advantages of being able to achieve odor prevention, backflow prevention, insect and rodent prevention, and satisfying the one-way drainage to the squat toilet's sewage outlet. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Figure 1 This is a schematic diagram of the structure of a squat toilet odor preventer according to the present invention;
[0019] Figure 2 This is an exploded view of an odor-proof device for squat toilets according to the present invention.
[0020] Figure 3 This is a schematic diagram of the drainage check pipe of a squat toilet odor preventer according to the present invention;
[0021] Figure 4 This is a schematic diagram of the check valve structure of a squat toilet odor preventer according to the present invention.
[0022] Explanation of reference numerals in the attached drawings: 1. Shell, 2. Drainage and check pipe, 21. Drainage pipe, 211. Lower drain pipe, 212. Upper drain pipe, 213. Drainage cover, 500. Upper cover, 600. Inlet, 700. Crossbeam, 800. Socket, 22. Check structure, 221. Hollow pipe, 222. Check gate, 100. Gate plate, 200. Movable counterweight, 300. Magnetic block, 3. Handle, 31. Extension rod, 32. Handle. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] See Figures 1 to 4 As shown, this embodiment provides an odor preventer for squat toilets, including a housing 1 for installation on the drain outlet of the squat toilet; a drainage check pipe 2 for unidirectionally closing the cavity of the housing 1 is provided inside the housing 1, and the flow direction of the drainage check pipe 2 is unidirectional from the outside to the drain outlet of the squat toilet; a handle 3 is also provided on the drainage check pipe 2 for adjusting the drainage check pipe 2 and the housing 1 to be installed and removed together on the drain outlet of the squat toilet to facilitate switching the opening and closing of the drain outlet. During use, when the external squat toilet is not in use, the drain check pipe 2, along with the housing 1, can be lifted and moved by holding the handle 3 and sealed onto the drain outlet of the external squat toilet to block the drain outlet. At this time, because the drain check pipe 2 is a one-way flow design, the flow direction from below the squat toilet drain outlet to the outside of the squat toilet is non-adjustable and closed, while the flow direction from the outside of the squat toilet to below the squat toilet drain outlet is adjustable. When the squat toilet is not draining, the one-way sealing effect of the drain check pipe 2 can prevent odors from escaping from below the squat toilet drain outlet into the environment and causing backflow. It effectively prevents damage to the indoor living environment and insects and rodents from crawling out of the sewage pipes of the squat toilet and entering the room. It also prevents sewage backflow when the sewage pipes of the squat toilet are blocked, providing excellent odor prevention, insect and rodent prevention, and sewage backflow prevention. In addition, when the water pipes or water-related equipment in the squat toilet area are damaged and leak, water will flow through the squat toilet's pit to the drainage check pipe 2. At this time, the check component of the drainage check pipe 2 opens under the impact of gravity of the water to carry out drainage operation. When there is no water, the check component of the drainage check pipe 2 automatically closes to achieve one-way drainage control to the squat toilet's sewage outlet, thereby completing the drainage operation to prevent leaks from spreading indoors and causing incalculable economic losses due to flooding.
[0025] In this embodiment, the drainage check pipe 2 includes a drainage pipe 21 disposed within the housing 1, with both ends of the drainage pipe 21 nested and fitted together with the inner walls of the top and bottom of the housing 1 to seal the cavity of the housing 1. A check structure 22 is provided within the drainage pipe 21 for unidirectional sealing of the cavity of the drainage pipe 21 to achieve unidirectional flow of liquid from the outside to the toilet drain outlet. The drainage check pipe 2 is connected to the handle 3 through the drainage pipe 21. The drainage pipe 21 includes a lower drain pipe 211 nested and attached to the bottom opening of the housing 1, with the upper end of the lower drain pipe 211 extending into the housing 1. An upper drain pipe 212, which is flared in shape, is fitted on the top of the lower drain pipe 211, and the top outer wall of the upper drain pipe 212 is nested and attached to the top opening of the housing 1 to achieve cavity closure. A drain cover 213 for guiding external liquid to flow into the upper drain pipe 212 is also fitted on the top of the upper drain pipe 212. The check valve structure 22 is embedded in the upper drain pipe 212, and the handle 3 is connected to the drain cover 213. The check valve structure 22 includes a hollow tube 221 nested and attached to the bottom opening of the upper drain pipe 212. The bottom opening of the hollow tube 221 is inclined and extends into the lower drain pipe 211. A check valve 222 is provided on the bottom opening of the hollow tube 221 for unidirectionally closing the cavity of the hollow tube 221 from bottom to top to achieve odor prevention, backflow prevention, and insect and rodent prevention. The check valve 222 flows unidirectionally from top to bottom to meet the unidirectional drainage to the toilet drain outlet. The check valve 222 includes a gate plate 100 hinged to the upper end of the bottom opening of the hollow tube 221 for movably sealing the cavity of the hollow tube 221. A movable counterweight block 200 is movably provided on the hinge end of the gate plate 100. Under normal conditions, the counterweight block moves by its own weight to push the gate plate 100 to cover the bottom opening of the hollow tube 221. Magnetic blocks 300 are also provided on the inner side wall of the lower end of the hollow tube 221 and on the lower end of the gate plate 100. Under normal conditions, the two magnetic blocks 300 magnetically attract each other to magnetically attach the gate plate 100 to the bottom opening of the hollow tube 221 to achieve cavity closure. The drain cover 213 includes an upper cover 500 sleeved on the top of the upper drain pipe 212, and the outer edge of the upper cover 500 is nested and fitted together with the top outer edge of the housing 1. At least one inlet 600 for draining external liquid to the upper drain pipe 212 is provided on the top of the upper cover 500. A socket 800 for inserting and engaging with the handle 3 is also provided on the top of the upper cover 500 through a crossbeam 700.During use, when the external squat toilet is not in use, the drain check pipe 2, along with the housing 1, is lifted and moved by holding the handle 3 and sealed onto the drain outlet of the external squat toilet to block it. At this time, because the check structure 22 of the drain check pipe 2 is a unidirectional flow design, the flow direction from below the squat toilet drain outlet to the outside of the squat toilet is non-adjustable and closed, while the flow direction from the outside of the squat toilet to below the squat toilet drain outlet is adjustable. The sealing effect of the housing 1 on the squat toilet drain outlet, and the sealing effect of the lower drain pipe 211 and upper drain pipe 212 of the drain pipe 21 on the cavity of the housing 1, along with the check structure... Under the sealing effect of the hollow pipe 221 of 22 on the cavity of the upper drain pipe 212, the sewage outlet of the squat toilet is connected to the outside through the hollow pipe 221 under the control of the check valve 222. When the squat toilet is not draining, the movable counterweight 200 of the check valve 222 rotates relative to the hinge end of the gate plate 100 under its own weight. This causes the movable counterweight 200 to push the gate plate 100 to flip relative to its hinge end towards the bottom opening of the hollow pipe 221. At the same time, under the magnetic attraction of the two magnetic blocks 300, the gate plate 100 is firmly attached to the bottom opening of the hollow pipe 221 to achieve one-way sealing of the sewage outlet of the squat toilet, thereby preventing the odor below the sewage outlet of the squat toilet from escaping into the environment and causing backflow of odor. This design effectively prevents odors, insects, rodents, and sewage backflow when the toilet's drain pipes become blocked, thus protecting the indoor living environment. Furthermore, when the water pipes or water-related equipment in the toilet area leak, water flows through the toilet's pit to the drainage check pipe 2. Under the constraint of the upper cover 500 of the drain cover 213, the water flows sequentially from the inlet 600 and the upper drain pipe 212 to the hollow pipe 221. The water in the hollow pipe 221, through its gravity impact, causes the two magnetic blocks 300 to separate, breaking their magnetic attraction. This, in turn, pushes the gate 100 relative to its hinged end to open the hollow pipe 221. The bottom opening initiates the drainage operation, directing water through the drain pipe 211 to the area below the toilet's drain outlet to prevent leaks from spreading indoors and causing incalculable economic losses. When there is no drainage, the movable counterweight 200 rotates relative to the hinged end of the gate 100 under its own weight. The movable counterweight 200 pushes the gate 100 to flip relative to its hinged end towards the bottom opening of the hollow tube 221. At this time, the two magnetic blocks 300 magnetically attract each other, causing the gate 100 to be firmly attached to the bottom opening of the hollow tube 221, automatically closing the cavity of the hollow tube 221. This achieves one-way drainage control of the toilet's drain outlet, making it convenient, safe, and reliable to use.
[0026] In this embodiment, the handle 3 includes an extension rod 31 inserted into the socket 800, and a handle 32 is sleeved on the end of the extension rod 31 away from the socket 800 to facilitate gripping and moving the extension rod 31 together with the drainage check pipe 2 and the housing 1.
[0027] In this embodiment, the upper cover 500, the crossbeam 700, and the socket 800 are integrally formed structures.
[0028] In specific use of this embodiment, firstly, when the external squat toilet is not in use, under the support and connection limitation of the crossbeam 700, the corresponding end of the extension rod 31 of the handle 3 is securely connected to the socket 800. By holding the handle 32 of the handle 3, the extension rod 31, together with the drainage check pipe 2 and the housing 1, is lifted and moved to seal and nest onto the sewage outlet of the external squat toilet to achieve the sealing of the sewage outlet of the squat toilet. At this time, since the check structure 22 of the drainage check pipe 2 is a one-way flow design, that is, the flow direction of the check structure 22 from below the sewage outlet of the squat toilet to the outside of the squat toilet is in a non-adjustable closed state, and the flow direction of the check structure 22 from the outside of the squat toilet to below the sewage outlet of the squat toilet is in an adjustable drainage state. The housing 1 seals the sewage outlet of the squat toilet. The combination of the lower drain pipe 211 and the upper drain pipe 212 of the drainage pipe 21 to seal the cavity of the shell 1, and the hollow pipe 221 of the check valve 22 to seal the cavity of the upper drain pipe 212, allows the sewage outlet of the squat toilet to connect to the outside through the hollow pipe 221 under the control of the check valve 222. Secondly, when the squat toilet is not draining, the movable counterweight 200 of the check valve 222 rotates relative to the hinged end of the gate plate 100 under its own weight. This causes the movable counterweight 200 to push the gate plate 100 to flip relative to its hinged end towards the bottom opening of the hollow pipe 221. Simultaneously, the magnetic attraction of the two magnetic blocks 300 causes the gate plate 100 to be firmly attached to the bottom opening of the hollow pipe 221, thus controlling the sewage outlet of the squat toilet. The one-way sealing prevents odors from emanating from below the toilet's drain outlet from entering the environment and causing backflow, thus protecting the indoor living environment. It also prevents insects and rodents from crawling out of the toilet's drain pipe and causing damage. Furthermore, it prevents sewage backflow when the drain pipe is blocked, providing excellent odor prevention, insect and rodent control, and sewage backflow prevention. Then, when the water pipes or water-related equipment in the toilet area leak, water flows through the toilet's pit to the drainage check pipe 2. Under the constraint of the upper cover 500 of the drain cover 213, the water flows sequentially from the inlet 600, through the upper drain pipe 212, to the hollow pipe 221. The water in the hollow pipe 221, through its gravity impact, causes the two magnetic blocks 300 to separate, breaking their magnetic attraction, thereby pushing the gate 100 relative to its hinge. The connection point is activated to open the bottom opening of the hollow pipe 221, thereby initiating the drainage operation. Water is then diverted through the drain pipe 211 to the area below the toilet's drain outlet to facilitate drainage, preventing water leakage from spreading indoors and causing incalculable economic losses. Finally, when there is no drainage, the movable counterweight 200 rotates relative to the hinged end of the gate 100 under its own weight. The movable counterweight 200 pushes the gate 100 to flip relative to its hinged end towards the bottom opening of the hollow pipe 221. At this time, the two magnetic blocks 300 magnetically attract each other, causing the gate 100 to be firmly attached to the bottom opening of the hollow pipe 221, thus automatically closing the cavity of the hollow pipe 221. This achieves one-way drainage control of the toilet's drain outlet, making it convenient, safe, and reliable to use.
[0029] In summary, this utility model, with the above-described structure, has the advantages of being able to prevent odors, backflow, insects, and rodents, and satisfy the requirement of unidirectional drainage to the sewage outlet of the squat toilet.
[0030] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. An odor-proof device for squat toilets, comprising a housing (1) and the housing (1) being used for installation on the drain outlet of the squat toilet; characterized in that: A drainage check pipe (2) is provided inside the housing (1) for unidirectionally closing the cavity of the housing (1), and the flow direction of the drainage check pipe (2) is unidirectional from the outside to the sewage outlet of the squat toilet; a handle (3) is also provided on the drainage check pipe (2) for adjusting the drainage check pipe (2) and the housing (1) to be installed and removed together on the sewage outlet of the squat toilet so as to facilitate switching the opening and closing of the sewage outlet.
2. The odor-proof device for squat toilets according to claim 1, characterized in that: The drainage check pipe (2) includes a drainage pipe (21) disposed in the housing (1), and the two ends of the drainage pipe (21) are nested and fitted together with the inner walls of the top and bottom of the housing (1) to seal the cavity of the housing (1). A check structure (22) is provided in the drainage pipe (21) for unidirectional sealing of the cavity of the drainage pipe (21) to realize unidirectional flow of liquid from the outside to the toilet drain outlet. The drainage check pipe (2) is connected to the handle (3) through the drainage pipe (21).
3. The odor-proof device for squat toilets according to claim 2, characterized in that: The drainage pipe (21) includes a lower drain pipe (211) nested and attached to the bottom opening of the housing (1) and the upper end of the lower drain pipe (211) extends into the housing (1). An upper drain pipe (212) in the shape of a trumpet is fitted on the top of the lower drain pipe (211) and the top outer wall of the upper drain pipe (212) is nested and attached to the top opening of the housing (1) to achieve cavity closure. A drain cover (213) for guiding external liquid to flow into the upper drain pipe (212) is also fitted on the top of the upper drain pipe (212). The check valve structure (22) is embedded in the upper drain pipe (212) and the handle (3) is connected to the drain cover (213).
4. The odor-proof device for squat toilets according to claim 3, characterized in that: The check valve structure (22) includes a hollow tube (221) nested and attached to the bottom opening of the upper drain pipe (212), and the bottom opening of the hollow tube (221) is inclined and extends into the lower drain pipe (211). A cavity for unidirectionally closing the hollow tube (221) from bottom to top is provided on the bottom opening of the hollow tube (221) to achieve odor prevention, backflow prevention and insect and rodent prevention. The check valve (222) flows unidirectionally from top to bottom to meet the unidirectional drainage to the toilet drain outlet.
5. The odor-proof device for squat toilets according to claim 4, characterized in that: The check valve (222) includes a gate plate (100) hinged to the upper end of the bottom opening of the hollow tube (221) for movably sealing the cavity of the hollow tube (221). A movable counterweight block (200) is movably provided on the hinged end of the gate plate (100) under normal conditions by its own weight to push the gate plate (100) to cover the bottom opening of the hollow tube (221). Magnetic blocks (300) are also provided on the inner side wall of the lower end of the hollow tube (221) and on the lower end of the gate plate (100). The two magnetic blocks (300) magnetically attract each other under normal conditions to magnetically attach the gate plate (100) to the bottom opening of the hollow tube (221) to achieve cavity closure.
6. The odor-proof device for squat toilets according to any one of claims 3 to 5, characterized in that: The drain cover (213) includes an upper cover body (500) sleeved on the top of the upper drain pipe (212), and the outer edge of the upper cover body (500) is nested and fitted together with the top outer edge of the housing (1). At least one inlet (600) for draining external liquid to the upper drain pipe (212) is provided on the top of the upper cover body (500), and a socket (800) for inserting and engaging with the handle (3) is provided on the top of the upper cover body (500) through a crossbeam (700).
7. The odor-proof device for squat toilets according to claim 6, characterized in that: The handle (3) includes an extension rod (31) inserted into the socket (800), and a handle (32) is sleeved on the end of the extension rod (31) away from the socket (800) for easy gripping to move the extension rod (31) together with the drain check pipe (2) and the housing (1).
8. The odor-proof device for squat toilets according to claim 6, characterized in that: The upper cover (500), crossbeam (700), and socket (800) are integrally formed structures.