A sewer plugging and air blowing system

Abstract

The utility model relates to a sewer plugging air supply system, including air bag, inflation pipe and ventilation pipe, the inflation pipe is connected to the inflation port of air bag, is equipped with the valve on the inflation pipe, the middle part of air bag is equipped with the through -hole of adaptation with ventilation pipe, and one end of ventilation pipe penetrates through the through -hole, when using, air bag is put into the entrance of sewer, then one end of ventilation pipe is inserted into the through -hole, the other end is butt joint with fan air outlet, starts the air pump and carries out the inflation to air bag through inflation pipe, seals sewer entrance, starts the fan again, through the fan, the outside air is forcedly blown into sewer through ventilation pipe, and the toxic gas in sewer is discharged from the outlet of sewer through the effect of airflow, thereby ensuring the safety of work environment.

Description

Technical Field

[0001] This utility model relates to the field of sewer maintenance technology, and in particular to a sewer sealing and ventilation system. Background Technology

[0002] Regularly cleaning sewers is a crucial part of maintaining urban drainage systems. The main reasons include: 1. Preventing long-term accumulation of garbage, silt, grease, etc., which can clog pipes; 2. The decomposition of organic matter in sewers produces toxic and harmful gases such as hydrogen sulfide, which not only emits a foul odor but may also harm health; 3. Regular cleaning reduces the erosion of pipes by corrosive substances (such as grease and acidic wastewater), preventing pipe damage or collapse; 4. Preventing urban flooding, as clogged sewers reduce drainage efficiency and increase the risk of flooding during the rainy season; 5. Untreated sewage overflowing directly can pollute rivers and soil.

[0003] For cleaning narrow sewers, equipment cannot enter, and manual cleaning and inspection are the only options. The toxic and harmful gases such as hydrogen sulfide in the sewers pose a serious threat to human health. Utility Model Content

[0004] The purpose of this invention is to provide a sewer sealing and ventilation system to solve the aforementioned problems in the prior art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A sewer sealing and ventilation system includes an airbag, an inflation tube, and a ventilation tube; the inflation port of the airbag is connected to the inflation tube, the inflation tube is equipped with a valve, the middle of the airbag is provided with a through hole adapted to the ventilation tube, and one end of the ventilation tube passes through the through hole.

[0007] The beneficial effects of this utility model are as follows: When in use, the airbag is placed into the inlet of the sewer, one end of the ventilation pipe is inserted into the through hole, and the other end is connected to the air outlet of the fan. The air pump is started to inflate the airbag through the inflation pipe to seal the sewer inlet. Then the fan is started to force the outside air into the sewer through the ventilation pipe. The airflow will expel the toxic gases in the sewer from the outlet of the sewer, thereby ensuring the safety of the working environment.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the airbag wall consists of a three-layer structure, with the inner and outer layers made of rubber and the middle layer made of high-density sponge.

[0010] Furthermore, the airbag is assembled from multiple individual small airbags, each of which has its own inflation port and inflation tube.

[0011] Furthermore, filters are installed at both ends of the ventilation duct. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the present invention.

[0014] The attached diagram lists the components represented by each number as follows:

[0015] 1. Sewer, 2. Airbag, 21. Inflation port, 22. Through hole, 3. Inflation tube, 31. Valve, 4. Ventilation tube, 41. Filter screen. Detailed Implementation

[0016] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0017] Example 1

[0018] like Figures 1 to 2 As shown, a sewer sealing and ventilation system includes an airbag 2, an inflation pipe 3, and a ventilation pipe 4; the inflation port 21 of the airbag 2 is connected to the inflation pipe 3, the inflation pipe 3 is provided with a valve 31, the middle part of the airbag 2 is provided with a through hole 22 adapted to the ventilation pipe 4, and one end of the ventilation pipe 4 passes through the through hole 22.

[0019] When in use, place the airbag 2 into the inlet of the sewer 1, insert one end of the ventilation pipe 4 into the through hole 22, and connect the other end to the air outlet of the fan. Start the air pump to inflate the airbag 2 through the inflation pipe 3, seal the inlet of the sewer 1, and then start the fan. The fan will force the outside air into the sewer 1 through the ventilation pipe 4. The airflow will then expel the toxic gases in the sewer 1 from the outlet of the sewer, thereby ensuring the safety of the working environment.

[0020] It should be noted that before firefighters enter the work area, the exhaust gas must be tested. Only those gases that meet the testing standards can enter the work area. When entering the work area, protective measures must be taken, such as wearing gas masks and safety ropes.

[0021] Example 2

[0022] This embodiment is a further improvement on embodiment 1, as detailed below:

[0023] The airbag 2 has a three-layer structure: the inner and outer layers are made of rubber, and the middle layer is made of high-density sponge.

[0024] The high-density sponge in the middle layer has a small compression amount, which can separate the inner and outer rubber layers to form a certain gap. When the airbag 2 is punctured by a foreign object, only the outer rubber layer is punctured. Because there is a sponge in the middle to isolate the inner rubber layer, it is not easy to puncture, which further ensures the stability of the airbag 2 in blocking the sewer.

[0025] It should be noted that even if the outer rubber layer of the airbag is punctured, the outer structure will not collapse due to the support of the high-density sponge, and it will still fit tightly against the outer wall of the sewer, ensuring its leak-sealing performance.

[0026] Example 3

[0027] This embodiment is a further improvement on any one of Embodiments 1 to 2, as detailed below:

[0028] The airbag 2 is assembled from multiple individual small airbags, each of which has its own inflation port 21 connected to the inflation tube 3.

[0029] During the process of sealing the sewer, it was discovered that one of the airbags had been punctured. The leaking airbag could be promptly removed and replaced with a new, smaller airbag to complete the sealing, thus reducing material consumption. In specific implementation, such as… Figure 1 As shown, airbag 2 consists of 4 fan-shaped small airbags, each of which is connected to an inflation tube 3.

[0030] A quick connector is provided at inflation port 21; if a small airbag is found to be punctured and collapsed, the damaged small airbag needs to be removed and replaced with a new small airbag. The quick connector can improve the replacement efficiency of the small airbag.

[0031] Example 4

[0032] This embodiment is a further improvement on embodiment 1, as detailed below:

[0033] Both ends of the ventilation duct 4 are equipped with filter screens 41 to prevent large debris from the sewer and the outside from entering the ventilation duct 4, clogging the ventilation duct 4, and thus affecting ventilation.

[0034] Ventilation duct 4 is made of PC pipe; PC pipe is lightweight and easy to transport, which can also reduce the cost of supporting structure, and it is not corroded by humid, weak acid and weak alkali environments, and has good stability.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sewer sealing and ventilation system, characterized in that, It includes an airbag (2), an inflation tube (3) and a ventilation tube (4); the inflation port (21) of the airbag (2) is connected to the inflation tube (3), the inflation tube (3) is provided with a valve (31), the middle part of the airbag (2) is provided with a through hole (22) adapted to the ventilation tube (4), and one end of the ventilation tube (4) passes through the through hole (22).

2. The sewer sealing and ventilation system according to claim 1, characterized in that, The airbag (2) has a three-layer structure, with the inner and outer layers made of rubber and the middle layer made of high-density sponge.

3. The sewer sealing and ventilation system according to any one of claims 1 or 2, characterized in that, The airbag (2) is assembled from multiple individual small airbags, each of which has an inflation port (21) connected to the inflation tube (3).

4. The sewer sealing and ventilation system according to claim 3, characterized in that, The air inlet (21) is provided with a quick connector that matches the air tube (3).

5. The sewer sealing and ventilation system according to claim 1, characterized in that, The ventilation pipe (4) is equipped with a filter screen (41) at both ends.

6. The sewer sealing and ventilation system according to claim 1, characterized in that, The ventilation duct is a PC duct.

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