Polluting gas extraction device for environment detection
By designing a polluted gas extraction device including air cylinder, piston, one-way valve, air extraction pipe and sample gas tank, the problem that traditional devices cannot perform multiple batches of extraction is solved, and the extraction and storage of multiple batches of polluted gas is realized, and the structure is simple, safe and reliable.
Patent Information
- Application Number
- CN202421808435.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The traditional pollutant gas extraction device has simple functions and a single structure, so it is impossible to perform multiple batch extractions.
A polluted gas extraction device for environmental detection is designed, including a gas cylinder, a piston, a check valve, a gas pump, an air inlet and a sample gas tank. Through the piston reciprocating push and the cooperation of the check valve, the extraction and storage of polluted gases are achieved.
It realizes the extraction and storage of multiple batches of polluted gases. It has a simple and convenient structure, can be remotely pumped, and prevents sewage from being sucked in, ensuring the safe storage and transfer of polluted gases.
Smart Images
Figure CN223005808U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pollution gas extraction devices, in particular to a pollution gas extraction device for environmental detection. Background Technique
[0002] Traditional pollution gas extraction devices have simple functions and single structures, and cannot perform multi-batch extraction. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is: in order to overcome the above problems, a pollution gas extraction device for environmental detection is provided, which solves the above problems.
[0004] The utility model solves its technical problems by adopting the following technical solutions:
[0005] A pollution gas extraction device for environmental detection includes a cylinder, inside which a piston pushed by a piston rod slides. The piston reciprocates to cooperate with two one-way valves for air extraction and exhaust to press the pollution gas into a specified container. A suction pipe is connected to the lower end of the cylinder, and an air inlet for suction is provided at the front end of the suction pipe. It also includes a sample gas tank, which stores the pollution gas after being connected to the cylinder.
[0006] Preferably, a threaded air inlet joint is fixedly provided at the lower end of the cylinder, a suction pipe is connected to the threaded air inlet joint, and a one-way air inlet valve is fixedly installed inside the threaded air inlet joint.
[0007] Preferably, two floating balls are fixedly provided at the front and rear intervals at the end of the suction pipe, the air inlet is located between the floating balls, and the floating balls effectively ensure that the air inlet will not be immersed in the liquid surface, thereby effectively avoiding sucking in sewage.
[0008] Preferably, an exhaust pipe joint communicating with the inner cavity of the cylinder is fixedly provided at the lower end of the cylinder, and the exhaust pipe joint is threadedly connected to the sample gas tank.
[0009] Preferably, a threaded pipe joint communicating with its inner cavity is fixedly provided at the lower end of the sample gas tank for threaded connection with the exhaust pipe joint.
[0010] Preferably, a supplementary air piston slides in the sample gas tank, and a supplementary air spring for pressing the supplementary air piston downward is provided in the sample gas tank. A one-way valve is installed inside the threaded pipe joint. In this way, after the pollution gas is filled into the sample gas tank, it is convenient to transfer for inspection and will not leak, which is safer.
[0011] Preferably, the single-cylinder volume of the air cylinder is the same as the volume inside the suction pipe. In this way, when the air cylinder is pumped for the first time, the normal air originally in the suction pipe can be discharged. Then, the sample gas tank is connected to the exhaust pipe joint, and thus the gas pressed into the sample gas tank subsequently is the polluted gas at the specified position.
[0012] The advantages and positive effects of the present utility model are as follows: The structure is simple and convenient. For example, when treating environments such as sewers, remote air suction can be carried out through the suction pipe, and the floating ball ensures that the air suction port will not absorb water. Additionally, after pre-pressing the air cylinder once to discharge the natural air in the suction pipe, then connecting the sample gas tank can conveniently press the polluted gas into the sample gas tank for convenient storage and transfer for inspection. Description of the Drawings
[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0014] Figure 1 is a schematic structural diagram of the present utility model. Detailed Embodiment
[0015] Now, the present utility model will be further described in detail with reference to the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.
[0016] The following will further elaborate on the embodiments of the present utility model with reference to the drawings:
[0017] As Figure 1 shown, a polluted gas extraction device for environmental detection according to the present utility model includes an air cylinder 10, inside which a piston 11 pushed by a piston rod 21 is slidably arranged. The piston 11 reciprocally pushes and cooperates with two one-way valves to suck and exhaust air, and press the polluted gas into a specified container. A suction pipe 13 is connected to the lower end of the air cylinder 10. The front end of the suction pipe 13 is provided with an air inlet 15 for air suction. It further includes a sample gas tank 18, and after the sample gas tank 18 is connected to the air cylinder 10, the polluted gas is stored.
[0018] Preferably, a threaded air inlet joint 12 is fixedly arranged at the lower end of the air cylinder 10. A suction pipe 13 is connected to the threaded air inlet joint 12, and a one-way air inlet valve is fixedly installed inside the threaded air inlet joint 12.
[0019] Preferably, two floating balls 14 are fixedly arranged at the end of the suction pipe 13 at intervals in the front and rear. The air inlet 15 is located between the floating balls 14, and the floating balls 14 effectively ensure that the air inlet 15 will not be immersed in the liquid surface, thereby effectively avoiding the inhalation of sewage.
[0020] Preferably, an exhaust pipe joint 16 communicating with the inner cavity of the air cylinder 10 is fixedly provided at the lower end of the air cylinder 10, and the exhaust pipe joint 16 is threadedly connected to the sample gas tank 18.
[0021] Preferably, a threaded pipe joint 17 communicating with the inner cavity thereof is fixedly provided at the lower end of the sample gas tank 18 for threaded connection with the exhaust pipe joint 16.
[0022] Preferably, a supplementary air piston 20 is slidably provided in the sample gas tank 18, and a supplementary air spring 19 for pressing the supplementary air piston 20 downward is provided in the sample gas tank 18. Moreover, a one-way valve is embedded in the threaded pipe joint 17. In this way, after the polluted gas is filled into the sample gas tank 18, it is convenient to transfer and inspect, and it will not leak, which is safer.
[0023] Preferably, the single-cylinder volume of the air cylinder 10 is the same as the volume in the air suction pipe 13. In this way, when the air cylinder 10 is pumped for the first time, the original normal air in the air suction pipe 13 can be discharged. Then, the sample gas tank 18 is connected to the exhaust pipe joint 16. Furthermore, the gas pressed into the sample gas tank 18 subsequently is the polluted gas at the designated position.
[0024] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific embodiments. Any other embodiments obtained by those skilled in the art according to the technical solutions of the present invention also fall within the scope of protection of the present invention.
Claims
1. A polluted gas extraction device for environmental detection, characterized in that: The invention comprises a gas cylinder (10), inside which a piston (11) is slidably provided and is pushed by a piston rod (21). The piston (11) reciprocates and cooperates with two one-way valves to perform air extraction and exhaust to compress the polluted gas into a designated container. A gas extraction pipe (13) is connected to the lower end of the gas cylinder (10), and a gas inlet (15) for air suction is provided at the front end of the gas extraction pipe (13). The gas cylinder also comprises a sample gas tank (18). After the sample gas tank (18) is connected to the gas cylinder (10), the polluted gas is stored.
2. The polluted gas extraction device for environmental detection according to claim 1, characterized in that: A threaded air inlet joint (12) is fixedly provided at the lower end of the air cylinder (10), an air extraction pipe (13) is connected to the threaded air inlet joint (12), and a one-way air inlet valve is fixedly installed in the threaded air inlet joint (12).
3. The polluted gas extraction device for environmental detection according to claim 2, characterized in that: Two floating balls (14) are fixedly provided at intervals at the front and rear ends of the air extraction pipe (13); the air inlet (15) is located between the floating balls (14); the floating balls (14) effectively ensure that the air inlet (15) will not be immersed in the liquid surface, thereby effectively avoiding the inhalation of sewage.
4. The polluted gas extraction device for environmental detection according to claim 3, characterized in that: An exhaust pipe joint (16) communicating with the inner cavity of the gas cylinder (10) is fixedly provided at the lower end of the gas cylinder (10), and the exhaust pipe joint (16) is threadedly connected to the sample gas tank (18).
5. The polluted gas extraction device for environmental detection according to claim 4, characterized in that: A threaded pipe joint (17) communicating with the inner cavity of the sample gas tank (18) is fixedly provided at the lower end thereof for threaded connection with the exhaust pipe joint (16).
6. The polluted gas extraction device for environmental detection according to claim 5, characterized in that: A gas replenishing piston (20) is slidably arranged in the sample gas tank (18), and a gas replenishing spring (19) is arranged in the sample gas tank (18) for pressing the gas replenishing piston (20) downward, and a one-way valve is embedded in the threaded pipe joint (17), so that after the polluted gas is filled into the sample gas tank (18), it is convenient to transfer and inspect, and there is no leakage, which is safer.
7. The polluted gas extraction device for environmental detection according to claim 6, characterized in that: The single cylinder volume of the gas cylinder (10) is consistent with the volume in the exhaust pipe (13), so that when the gas cylinder (10) is evacuated for the first time, the normal air in the exhaust pipe (13) can be discharged, and then the sample gas tank (18) is connected to the exhaust pipe joint (16), and the gas subsequently pressed into the sample gas tank (18) is the polluted gas at the designated position.