A vacuum toilet deodorization and noise reduction device
Patent Information
- Application Number
- CN202521281281.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-06-23
AI Technical Summary
[0003]然而，现有粪便收集设备普遍存在两大技术难题：其一，真空泵在运行过程中，气流直接从泵体侧面或顶部高速排出，产生强烈的冲击噪音，严重影响使用环境舒适性，尤其在对噪音敏感的居住、医疗场所，该问题更为突出；其二，传统设备在气流路径设计上存在缺陷，储粪桶内产生的臭气易通过真空泵周边缝隙泄露至室内，不仅污染空气，还可能引发健康风险
1、本实用新型采用的真空泵，将产生的气流导向底部通道，改变了传统真空泵气流直接从泵体侧面或顶部高速排出的方式，这种优化设计使得气流在排出时，避免了因高速冲击泵体外壳及周边部件而产生的高频噪音，原本直接排放的气流会以较大的冲击力撞击周边结构，形成刺耳的噪音；而经底部通道导向后，气流能够更平缓地进入储粪桶，减少了因气流冲击产生的噪音源，从而有效降低了装置运行时的整体噪音水平。
Smart Images
Figure CN224741708U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of toilet technology, and in particular to a vacuum toilet deodorization and noise reduction device. Background Technology
[0002] In the field of modern sanitation facilities, vacuum toilets are widely used in homes, hospitals, trains and other places due to their efficient sewage discharge performance. Their accompanying sewage collection equipment usually relies on vacuum pumps to achieve negative pressure sewage discharge.
[0003] However, existing sewage collection equipment generally suffers from two major technical challenges: First, during operation, the airflow is discharged at high speed directly from the side or top of the pump body, generating strong impact noise, which seriously affects the comfort of the user environment, especially in noise-sensitive residential and medical places, where the problem is more prominent; Second, traditional equipment has defects in the airflow path design, and the odor generated in the sewage storage tank can easily leak into the room through the gaps around the vacuum pump, which not only pollutes the air but may also cause health risks. Utility Model Content
[0004] The purpose of this invention is to provide a vacuum toilet deodorization and noise reduction device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution, which includes a negative pressure toilet, a manure storage tank at the rear of the negative pressure toilet, a vacuum pump at the top of the manure storage tank, the vacuum pump being connected to the negative pressure toilet via a manure delivery pipe, and an air outlet pipe being provided on the air outlet on one side of the top of the manure storage tank.
[0006] As a preferred embodiment of this utility model, the negative pressure toilet is provided with a heat-insulating shell on top, the heat-insulating shell is covered on the vacuum pump, a fan is provided on the inner top surface of the heat-insulating shell, and an air inlet is provided on the top of the heat-insulating shell.
[0007] In a preferred embodiment of this utility model, an air duct is formed between the vacuum pump and the inner wall of the insulation shell, and the air duct communicates with the interior of the manure storage tank.
[0008] As a preferred embodiment of this utility model, a drain valve is provided on the lower side of one side of the manure storage tank.
[0009] As a preferred embodiment of this utility model, a check valve is provided at the bottom of the output end of the vacuum pump.
[0010] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: 1. The vacuum pump used in this utility model guides the generated airflow to the bottom channel, changing the traditional vacuum pump method of directly discharging the airflow from the side or top of the pump body at high speed. This optimized design avoids the high-frequency noise generated by the high-speed impact of the airflow on the pump body shell and surrounding components when the airflow is discharged. The airflow that was originally discharged directly would hit the surrounding structure with a large impact force, forming a harsh noise. After being guided by the bottom channel, the airflow can enter the manure storage tank more smoothly, reducing the noise source generated by the airflow impact, thereby effectively reducing the overall noise level of the device during operation.
[0011] 2. The heat-insulating shell set on the top of the negative pressure toilet not only provides heat preservation, but also effectively blocks and absorbs the noise generated by the operation of the fan and the flow of air. When noise reaches the heat-insulating shell, the inner sound-absorbing material can absorb some of the sound wave energy, while the outer heat-insulating board further blocks the noise from spreading outward, creating a quiet environment for users. It is especially suitable for noise-sensitive places, such as home bathrooms and hospital wards.
[0012] 3. This utility model utilizes a "low-position air intake" design, where airflow enters the manure storage tank from the bottom channel of the vacuum pump, forming a specific airflow path. Under this design, the fecal odor generated in the manure storage tank is carried by the airflow and centrally discharged to the outside through a pre-set ventilation duct (i.e., exhaust pipe). Compared with the traditional method, this design effectively prevents odor from escaping into the room from the side or top gaps of the vacuum pump. This is because, during the operation of the traditional device, changes in air pressure inside the manure storage tank may cause odor to leak from weak sealing points around the pump body. The low-position air intake airflow path creates a stable negative pressure environment, which allows odor to flow only in the direction of airflow and prevents it from spreading from other gaps, thus solving the problem of indoor odor pollution at its source. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the manure storage tank when it is completely cut open. Figure 3 for Figure 2 Enlarged view of point A in the middle.
[0014] Attached reference numerals: 1. Negative pressure toilet; 2. Manure storage tank; 20. Insulation shell; 21. Air inlet; 22. Fan; 23. Sewage discharge valve; 24. Air duct; 3. Vacuum pump; 30. Manure conveying pipe; 4. Check valve; 5. Air outlet pipe. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0016] like Figure 1-3 As shown, the present invention proposes a vacuum toilet deodorization and noise reduction device, which includes a negative pressure toilet 1, a fecal storage tank 2 fixedly installed behind the negative pressure toilet 1, a vacuum pump 3 installed in the center of the top of the fecal storage tank 2, the input end of the vacuum pump 3 being connected to the sewage outlet of the negative pressure toilet 1 through a fecal conveying pipe 30, the fecal conveying pipe 30 having good sealing performance and corrosion resistance, which can ensure that the feces are stably transported into the fecal storage tank 2, and an air outlet pipe 5 is installed at the air outlet on one side of the top of the fecal storage tank 2, the air outlet pipe 5 extending to the outside, and directionally discharging the treated gas; The top of the negative pressure toilet 1 is equipped with an insulation shell 20. The insulation shell 20 has a cover-like structure and is placed over the vacuum pump 3, which protects and insulates the vacuum pump 3. A fan 22 is installed on the inner top surface of the insulation shell 20. When the fan 22 is started, it can drive the air to flow. At the same time, an air inlet 21 is opened on the top of the insulation shell 20 as a channel for air to enter the interior of the insulation shell 20. A natural air duct 24 is formed between the vacuum pump 3 and the inner wall of the insulation shell 20. One end of the air duct 24 is connected to the internal space of the insulation shell 20, and the other end is connected to the inside of the manure storage tank 2. In this way, the air drawn by the blower 22 can enter the insulation shell 20 through the air inlet 21, and then enter the manure storage tank 2 along the air duct 24, forming a specific airflow path. A drain valve 23 is installed on one side of the manure storage tank 2. When it is necessary to clean the manure and other waste in the manure storage tank 2, the drain valve 23 can be opened to achieve convenient discharge. In addition, a check valve 4 is installed at the bottom of the output end of the vacuum pump 3. The check valve 4 can prevent the backflow of gas or sewage in the manure storage tank 2, ensuring the stability and safety of the entire system operation.
[0017] During operation, after the fan 22 starts, it actively draws indoor air through the low-position air inlet. This air first enters the insulation shell 20 cavity. Inside the insulation shell 20, the air undergoes preliminary noise reduction treatment to reduce the noise generated by the fan 22 from spreading to the outside. Then, under the action of the fan 22, the air is transported to the manure storage tank 2 along the air duct 24. Inside the manure storage tank 2, the air mixes thoroughly with the odor generated inside the tank. The airflow carries the odor within the tank, and the air carrying the odor continues to flow along the pipe, eventually being discharged outdoors through the exhaust pipe 5.
[0018] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. A vacuum toilet deodorization and noise reduction device, comprising a negative pressure toilet (1), wherein a fecal storage tank (2) is provided at the rear of the negative pressure toilet (1), characterized in that: The top of the manure storage tank (2) is equipped with a vacuum pump (3), which is connected to the negative pressure toilet (1) through a manure conveying pipe (30). An air outlet pipe (5) is provided on the air outlet on one side of the top of the manure storage tank (2).
2. The vacuum toilet deodorization and noise reduction device according to claim 1, characterized in that: The negative pressure toilet (1) is provided with a heat insulation shell (20) on top. The heat insulation shell (20) covers the vacuum pump (3). A fan (22) is provided on the inner top surface of the heat insulation shell (20). An air inlet (21) is opened on the top of the heat insulation shell (20).
3. The vacuum toilet deodorizing and noise reducing device according to claim 2, characterized in that: The vacuum pump (3) forms an air duct (24) between itself and the inner wall of the insulation shell (20), and the air duct (24) is connected to the inside of the manure storage tank (2).
4. The vacuum toilet deodorization and noise reduction device according to claim 1, characterized in that: A drain valve (23) is provided on one side of the manure storage tank (2).
5. The vacuum toilet deodorization and noise reduction device according to claim 1, characterized in that: A check valve (4) is provided at the bottom of the output end of the vacuum pump (3).