Mobile toilet exhaust device with deodorization function
By using deodorizing filters and deodorizing pipes in the ventilation system of portable toilets, the problem of odor control is solved, achieving air purification and deodorization effects, improving the user experience and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU CLEEN ECO-TECH CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-05-19
AI Technical Summary
Existing portable toilets, under conditions of high temperature, high usage frequency, or poor ventilation, have difficulty effectively controlling the odor of volatile gases such as ammonia and hydrogen sulfide produced by the decomposition of excrement, leading to a decline in user experience and potential pollution of the surrounding environment.
The system employs an exhaust device with an odor-removing filter and a deodorizing pipe. The odor-removing filter is filled with activated carbon to absorb odors, and the deodorizing pipe sprays deodorizing agent through nozzles to further purify the air. Combined with an automatic pressurization component, the deodorizing agent is delivered.
It effectively purifies the air in the toilet, reduces the spread of odors, improves the user experience, and protects the environment.
Smart Images

Figure CN224259534U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of ventilation devices, specifically, it relates to a portable toilet ventilation device with deodorization function. Background Technology
[0002] Portable toilets are mobile and modular public health facilities that can be flexibly deployed and quickly relocated through frame structures or modular designs. They are suitable for densely populated areas or places with weak infrastructure, such as tourist attractions, large events, city streets, and construction sites. They feature water-saving flushing systems, non-slip aluminum flooring, and metal carved panel walls, combining environmental friendliness, energy efficiency, and durability.
[0003] In practical applications, portable toilets, with their modular design and rapid deployment capabilities, can flexibly meet the hygiene needs of temporary venues such as scenic spots, construction sites, and large-scale events. However, research has found that their core challenge lies in the odor problem that easily arises during use, especially in environments with high temperatures, high usage frequency, or poor ventilation, where volatile gases such as ammonia and hydrogen sulfide produced by the decomposition of excrement are difficult to control effectively. This odor not only degrades the user experience but may also pollute the surrounding environment through airborne diffusion, posing a public health hazard. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a mobile toilet ventilation device with deodorization function that can overcome or at least partially solve the above problems.
[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:
[0006] A portable toilet ventilation device with deodorization function includes a fan and an L-shaped output pipe fixedly connected to the output end of the fan, wherein the input end of the fan is fixedly connected to an L-shaped input pipe, and an odor-removing filter is installed inside the L-shaped input pipe; and a deodorizing pipe fixedly installed inside the L-shaped output pipe, wherein a nozzle is fixedly installed on the deodorizing pipe, and the L-shaped input pipe is provided with a liquid supply section for conveying deodorizing agent to the deodorizing pipe.
[0007] Preferably, the side wall of the L-shaped input pipe is provided with a groove, the deodorizing filter element is inserted into the groove, and the deodorizing filter element is filled with activated carbon.
[0008] Preferably, the liquid supply unit includes a storage box fixedly connected to the bottom of the L-shaped input pipe, and a delivery pipe extending to the bottom of the storage box is fixedly connected to the deodorization pipe.
[0009] Furthermore, a base plate is provided on the side of the storage box, and an automatic pressurization component for supplying air to the storage box is provided on the top of the base plate.
[0010] Furthermore, the automatic pressurization component includes a device slot located on the top of the base plate, a pedal that is slidably mounted longitudinally in the device slot, a spring that is installed between the pedal and the bottom of the device slot, an air intake pipe and an exhaust pipe that communicate with the device slot that are fixedly connected to the outer wall of the base plate, the end of the exhaust pipe extending into the storage box, and a one-way valve that is fixedly installed in both the air intake pipe and the exhaust pipe.
[0011] Preferably, a filter screen is fixedly installed inside the input end of the L-shaped input tube.
[0012] Preferably, a perforated plate is fixedly installed inside the output end of the L-shaped output tube, and the output end of the nozzle faces the perforated plate.
[0013] Furthermore, the perforated plate is made of sponge.
[0014] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:
[0015] 1. This utility model uses a fan to absorb odors generated when using the toilet. When the air passes through the deodorizing filter, the activated carbon inside the filter can adsorb most of the odors in the air. The purified air will be discharged from the end of the L-shaped output pipe, thus completing the air purification work and reducing the impact on the surrounding environment.
[0016] 2. This utility model delivers the deodorant to the deodorizing pipe through the delivery pipe, and the deodorizing pipe sprays the deodorant into the L-shaped output pipe through the nozzle. So when the air is discharged from the L-shaped output pipe, the deodorant on the inner wall can further deodorize the air, making the discharged air fresher.
[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0018] In the attached diagram:
[0019] Figure 1 This is a first-view isometric structural diagram of a mobile toilet exhaust device with deodorization function proposed in this utility model.
[0020] Figure 2 This is a second-view structural diagram of a portable toilet exhaust device with deodorization function proposed in this utility model.
[0021] Figure 3 This is an isometric sectional view of a portable toilet exhaust device with deodorization function proposed in this utility model.
[0022] Figure 4This is a partial isometric structural diagram of a portable toilet exhaust device with deodorization function proposed in this utility model;
[0023] Figure 5 This is an isometric structural diagram of the storage box of a mobile toilet exhaust device with deodorization function proposed in this utility model.
[0024] In the diagram: 1. Fan; 2. L-shaped output pipe; 3. L-shaped input pipe; 4. Groove; 5. Deodorizing filter element; 6. Deodorizing pipe; 7. Nozzle; 8. Storage box; 9. Delivery pipe; 10. Base plate; 11. Device slot; 12. Foot pedal; 13. Spring; 14. Exhaust pipe; 15. Intake pipe; 16. Mesh plate; 17. Filter screen. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.
[0026] Example: Refer to Figures 1-5 A portable toilet ventilation device with deodorization function includes a fan 1, and further includes: an L-shaped output pipe 2, which is roughly L-shaped and fixedly connected to the output end of the fan 1; an L-shaped input pipe 3, which is fixedly connected to the input end of the fan 1; an odor-removing filter element 5, which is installed inside the L-shaped input pipe 3 to filter odors in the air; a slot 4, which is provided on the side wall of the L-shaped input pipe 3, into which the odor-removing filter element 5 is inserted; and activated carbon, which is filled inside the odor-removing filter element 5 to absorb odors. A deodorizing pipe 6 is fixedly installed inside the L-shaped output pipe 2, and a nozzle 7 is fixedly installed on the deodorizing pipe 6 to spray deodorizing agent into the L-shaped output pipe 2. The L-shaped input pipe 3 is provided with a liquid supply section for supplying deodorizing agent to the deodorizing pipe 6, and a filter screen 17 for filtering dust is fixedly installed inside the input end of the L-shaped input pipe 3.
[0027] Specifically, during use, the entire device is fixed to the portable toilet, with the end of the L-shaped output pipe 2 positioned at the top of the portable toilet and the end of the L-shaped input pipe 3 positioned above the toilet bowl. The base plate 10 is fixed to the bottom of the toilet. During use, the fan 1 is activated, drawing in odors generated during toilet use through the L-shaped input pipe 3. As the air passes through the deodorizing filter 5, the activated carbon inside the filter adsorbs most of the odors. The purified air is then discharged from the end of the L-shaped output pipe 2, thus completing the air purification process and reducing the impact on the surrounding environment. The liquid supply unit delivers deodorant to the deodorizing pipe 6, which then sprays the deodorant into the L-shaped output pipe 2 through the nozzle 7. As air is discharged from the L-shaped output pipe 2, the deodorant on the inner wall further deodorizes the air, making the discharged air fresher.
[0028] The aforementioned liquid supply unit includes a storage box 8 fixedly connected to the bottom of the L-shaped input pipe 3. The storage box 8 is used to store liquid deodorant. A delivery pipe 9 extending to the bottom of the storage box 8 is fixedly connected to the deodorizing pipe 6. A bottom plate 10 is provided on the side of the storage box 8. An automatic pressurization component for supplying gas to the storage box 8 is provided on the top of the bottom plate 10.
[0029] Specifically, during use, the pressurizing component automatically supplies air into the storage tank 8, which increases the pressure inside the storage tank 8. The liquid deodorant at the bottom of the storage tank 8 is then transported to the deodorizing pipe 6 through the delivery pipe 9. The deodorizing pipe 6 then sprays the deodorant into the L-shaped output pipe 2 through the nozzle 7, thus automatically completing the deodorant delivery process.
[0030] The aforementioned automatic pressurization component includes a device slot 11 located on the top of the base plate 10. A foot pedal 12 is longitudinally slidably installed in the device slot 11. A spring 13 is installed between the foot pedal 12 and the inner bottom of the device slot 11. An air intake pipe 15 and an exhaust pipe 14 communicating with the device slot 11 are fixedly connected to the outer wall of the base plate 10. The end of the exhaust pipe 14 extends into the storage box 8. A one-way valve is fixedly installed in both the air intake pipe 15 and the exhaust pipe 14.
[0031] When a user enters the toilet, they first step on the foot pedal 12, which then slides towards the bottom of the device slot 11. The device slot 11 then supplies air into the storage tank 8 through the exhaust pipe 14, causing the pressure inside the storage tank 8 to rise. When the user stops stepping on the foot pedal 12, the spring 13 causes the foot pedal 12 to move upward and reset, and the device slot 11 draws in air through the suction pipe 15.
[0032] A perforated plate 16 is fixedly installed inside the output end of the L-shaped output pipe 2. The output end of the nozzle 7 faces the perforated plate 16. The perforated plate 16 is made of sponge. When the nozzle 7 discharges deodorant, it will spray the deodorant onto the perforated plate 16. The sponge material of the perforated plate 16 will absorb the deodorant. Thus, when the air passes through the perforated plate 16, the deodorant can efficiently deodorize the air.
[0033] This portable toilet exhaust device with deodorization function is used by fixing the entire device to the portable toilet, with the end of the L-shaped output pipe 2 placed on top of the portable toilet and the end of the L-shaped input pipe 3 placed above the toilet bowl. At the same time, the base plate 10 is fixed to the bottom of the toilet. During use, the fan 1 is turned on, and the fan 1 will absorb the odor generated when using the toilet through the L-shaped input pipe 3. When the air passes through the deodorizing filter 5, the activated carbon in the deodorizing filter 5 can absorb most of the odor in the air. The purified air will be discharged from the end of the L-shaped output pipe 2, thus completing the air purification work and reducing the impact on the surrounding environment.
[0034] When a user enters the toilet, they first step on the foot pedal 12, which slides towards the bottom of the device slot 11. The device slot 11 then supplies air into the storage tank 8 through the exhaust pipe 14, increasing the pressure inside the storage tank 8. The liquid deodorant at the bottom of the storage tank 8 is then supplied to the deodorizing pipe 6 through the delivery pipe 9. The deodorizing pipe 6 sprays the deodorant into the L-shaped output pipe 2 through the nozzle 7. As air is discharged from the L-shaped output pipe 2, the deodorant on the inner wall further deodorizes the air, making the discharged air fresher. When the user stops stepping on the foot pedal 12, the spring 13 moves the foot pedal 12 upward to reset, and the device slot 11 draws in air through the suction pipe 15.
[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A portable toilet ventilation device with deodorization function, comprising a fan (1), characterized in that, Also includes: The L-shaped output pipe (2) is fixedly connected to the output end of the fan (1). The fan (1) is fixedly connected to an L-shaped input pipe (3), and an odor-removing filter (5) is installed inside the L-shaped input pipe (3). The deodorizing pipe (6) is fixedly installed inside the L-shaped output pipe (2). The deodorizing pipe (6) is fixedly equipped with a nozzle (7), and the L-shaped input pipe (3) is provided with a liquid supply section for conveying deodorizing agent to the deodorizing pipe (6).
2. The portable toilet exhaust device with deodorization function according to claim 1, characterized in that, The L-shaped input pipe (3) has a slot (4) on its side wall. The deodorizing filter element (5) is inserted into the slot (4) and is filled with activated carbon.
3. The portable toilet exhaust device with deodorization function according to claim 1, characterized in that, The liquid supply unit includes a storage box (8) fixedly connected to the bottom of the L-shaped input pipe (3), and a delivery pipe (9) extending to the bottom of the storage box (8) is fixedly connected to the deodorization pipe (6).
4. A portable toilet exhaust device with deodorization function according to claim 3, characterized in that, The storage box (8) is provided with a base plate (10) on the side, and the top of the base plate (10) is provided with an automatic pressurization component for supplying air to the storage box (8).
5. A portable toilet exhaust device with deodorization function according to claim 4, characterized in that, The automatic pressurization component includes a device slot (11) set on the top of the base plate (10). A foot pedal (12) is longitudinally slidably installed in the device slot (11). A spring (13) is installed between the foot pedal (12) and the inner bottom of the device slot (11). An air intake pipe (15) and an exhaust pipe (14) communicating with the device slot (11) are fixedly connected to the outer wall of the base plate (10). The end of the exhaust pipe (14) extends into the storage box (8). A one-way valve is fixedly installed in both the air intake pipe (15) and the exhaust pipe (14).
6. A portable toilet exhaust device with deodorization function according to claim 1, characterized in that, A filter screen (17) is fixedly installed inside the input end of the L-shaped input tube (3).
7. A portable toilet exhaust device with deodorization function according to claim 1, characterized in that, A mesh plate (16) is fixedly installed inside the output end of the L-shaped output pipe (2), and the output end of the nozzle (7) faces the mesh plate (16).
8. A portable toilet exhaust device with deodorization function according to claim 7, characterized in that, The perforated plate (16) is made of sponge.