Environment detection gas collecting device

Abstract

The utility model relates to the technical field of gas collection, and discloses an environment detection gas collection device which comprises a main body, an inner groove is formed in the main body, a groove is formed in the bottom of the main body, a through hole is formed between the top of the inner wall of the groove and the inner groove, an inner cylinder is movably arranged in the groove, and a through hole is formed in the top of the inner cylinder. A hydraulic rod is fixedly installed in the inner groove, the telescopic end of the hydraulic rod sequentially penetrates through the through opening and the through hole and extends into the inner cylinder, a piston is movably installed at the telescopic end of the hydraulic rod, an air opening is formed in the middle of the bottom of the inner cylinder, and fixing rods are fixedly installed on the two sides of the bottom of the inner wall of the groove correspondingly; according to the gas collection device, the piston is driven by the hydraulic rod to move upwards in the inner cylinder, gas collection can be completed, the gas port can be automatically closed after collection is completed, and therefore the collected gas is prevented from leaking out.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas collection, in particular to an environment detection gas collection device. Background Art

[0002] With the continuous development and progress of society, people pay more and more attention to environmental hygiene, coordinate the relationship between humans and the environment, and protect the living environment of humans, which includes air detection. Before air detection, a gas collection device is needed to collect the air. However, when the common device for collecting environmental gas is in use, it is impossible to directly seal the device after collecting the gas. In this way, the collected gas is prone to leakage, making the gas collected in the device prone to mixing, thereby affecting the data detected. For this reason, the present application proposes an environmental detection gas collection device. Utility Model Content

[0003] In order to solve the problems raised in the above-mentioned background technology, the utility model provides the following technical solutions: an environmental detection gas collection device, including a main body, an inner groove is opened inside the main body, a groove is opened at the bottom of the main body, a through opening is opened between the top of the inner wall of the groove and the inner groove, an inner cylinder is movably arranged in the groove, a through hole is opened at the top of the inner cylinder, a hydraulic rod is fixedly installed in the inner groove, the telescopic end of the hydraulic rod passes through the through opening and the through hole in sequence and extends into the inner cylinder, and a piston is movably installed at the telescopic end of the hydraulic rod, an air port is opened at the middle position of the bottom of the inner cylinder, fixed rods are fixedly installed on both sides of the bottom of the inner wall of the groove, a vertical connecting rod is fixedly installed between the two fixed rods, the top of the connecting rod extends to the air port at the bottom of the inner cylinder, and a sealing plug is fixedly installed at the top of the connecting rod.

[0004] Preferably, a sealing ring is fixedly installed inside the through hole, and the telescopic end of the hydraulic rod is in close contact with the inner wall of the sealing ring.

[0005] Preferably, the sealing plug is located between the air ports, the bottom of the air ports are configured to be funnel-shaped, the sealing plug is adapted to the shape of the funnel portion at the bottom of the air ports, and the diameter of the top of the sealing plug is smaller than the diameter of the top of the air ports.

[0006] Preferably, limit blocks are fixedly installed on both sides of the upper position of the inner wall of the groove, the inner cylinder is located below the two limit blocks, the telescopic end of the hydraulic rod is sleeved with a spring, and the two ends of the spring are respectively fixedly connected to the top of the inner wall of the groove and the top of the inner cylinder.

[0007] Preferably, when the top of the inner cylinder contacts the limiting block, the side wall of the sealing plug fits against the inner wall of the funnel portion at the bottom of the air port.

[0008] Preferably, a sealing cap is threadedly sleeved on the bottom end of the main body.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The piston is driven upward in the inner cylinder by the hydraulic rod to reduce the air pressure in the inner cylinder, thereby sucking the air into the inner cylinder through the air port. In this way, the gas can be collected. Then the piston continues to move upward to drive the inner cylinder upward in the groove, so that the sealing plug is blocked in the air port at the bottom of the inner cylinder. After the collection is completed, the air port can be automatically closed to prevent the collected gas from leaking out. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

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

[0013] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the utility model;

[0014] Figure 3 It is an enlarged structural schematic diagram of A of the utility model;

[0015] Figure 4 It is a schematic diagram of the cross-sectional structure of the main body of the utility model;

[0016] Figure 5 It is a schematic diagram of the cross-sectional structure of the inner cylinder of the utility model;

[0017] In the figure: 1. main body; 2. inner groove; 3. groove; 4. through port; 5. inner cylinder; 6. through hole; 7. hydraulic rod; 8. piston; 9. air port; 10. fixing rod; 11. connecting rod; 12. sealing plug; 13. spring; 14. limit block; 15. sealing ring; 16. sealing cover. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] Depend on Figure 1-5The utility model comprises a main body 1, an inner groove 2 is provided inside the main body 1, a groove 3 is provided at the bottom of the main body 1, a through-port 4 is provided between the top of the inner wall of the groove 3 and the inner groove 2, an inner cylinder 5 is movably provided in the groove 3, a through-hole 6 is provided at the top of the inner cylinder 5, a hydraulic rod 7 is fixedly installed in the inner groove 2, the telescopic end of the hydraulic rod 7 passes through the through-port 4 and the through-hole 6 in sequence and extends into the inner cylinder 5, and a piston 8 is movably installed at the telescopic end of the hydraulic rod 7, an air port 9 is provided at the middle position of the bottom of the inner cylinder 5, fixed rods 10 are fixedly installed on both sides of the bottom of the inner wall of the groove 3, a vertical connecting rod 11 is fixedly installed between the two fixed rods 10, and the top end of the connecting rod 11 extends to the air port 9 at the bottom of the inner cylinder 5, A sealing plug 12 is fixedly installed on the top of the connecting rod 11. When collecting gas, it is necessary to first screw the sealing cap 16, and then control the hydraulic rod 7 in the inner groove 2 to drive the piston 8 to move up on the inner cylinder 5. The upward movement of the piston 8 in the inner cylinder 5 can reduce the pressure in the inner cylinder 5, so that the external gas will enter the inner cylinder 5 from the gas port 9 at the bottom end of the inner cylinder 5. When the piston 8 moves to the top of the inner cylinder 5, it will drive the inner cylinder 5 to move up in the groove 3, so that the top of the inner cylinder 5 squeezes the spring 13 and contacts the bottom of the two limit blocks 14. At this time, the sealing plug 12 at the top of the connecting rod 11 will just block the gas port 9 at the bottom of the inner cylinder 5, so that the gas collected in the inner cylinder 5 cannot leak out, and finally the sealing cap 16 can be screwed on.

[0020] At the same time, a sealing ring 15 is fixedly installed inside the through hole 6, and the telescopic end of the hydraulic rod 7 is in close contact with the inner wall of the sealing ring 15, so that the through hole 6 at the top of the inner tube 5 can be sealed through the sealing ring 15.

[0021] In addition, the sealing plug 12 is located between the air ports 9, the bottom end of the air ports 9 is set to be funnel-shaped, the sealing plug 12 is adapted to the shape of the funnel portion at the bottom end of the air ports 9, and the diameter of the top end of the sealing plug 12 is smaller than the diameter of the top end of the air ports 9, so that the sealing plug 12 can be blocked in the air ports 9 at the bottom end of the inner tube 5.

[0022] In addition, limit blocks 14 are fixedly installed on both sides of the upper position of the inner wall of the groove 3, and the inner cylinder 5 is located below the two limit blocks 14. The telescopic end of the hydraulic rod 7 is sleeved with a spring 13, and the two ends of the spring 13 are respectively fixedly connected to the top of the inner wall of the groove 3 and the top of the inner cylinder 5. The limit blocks 14 can prevent the inner cylinder 5 from moving up too much distance in the groove 3, thereby limiting the movement range of the inner cylinder 5.

[0023] Furthermore, when the top of the inner tube 5 contacts the limiting block 14 , the side wall of the sealing plug 12 fits with the inner wall of the funnel portion at the bottom of the air port 9 .

[0024] In addition, a sealing cover 16 is threadedly sleeved on the bottom end of the main body 1 , and the sealing cover 16 can seal the groove 3 at the bottom of the main body 1 .

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmental detection gas collection device, comprising a main body (1), characterized in that: An inner groove (2) is provided inside the main body (1), a groove (3) is provided at the bottom of the main body (1), a through opening (4) is provided between the top of the inner wall of the groove (3) and the inner groove (2), an inner cylinder (5) is movably provided in the groove (3), a through hole (6) is provided at the top of the inner cylinder (5), a hydraulic rod (7) is fixedly installed in the inner groove (2), and the telescopic end of the hydraulic rod (7) passes through the through opening (4) and the through hole (6) in sequence and extends into the inner cylinder (5), A piston (8) is movably mounted at the telescopic end of the hydraulic rod (7); an air port (9) is opened at the middle position of the bottom of the inner cylinder (5); fixed rods (10) are fixedly mounted on both sides of the bottom of the inner wall of the groove (3); a vertical connecting rod (11) is fixedly mounted between the two fixing rods (10); the top end of the connecting rod (11) extends into the air port (9) at the bottom of the inner cylinder (5); and a sealing plug (12) is fixedly mounted at the top end of the connecting rod (11).

2. The environmental detection gas collection device according to claim 1, characterized in that: A sealing ring (15) is fixedly installed inside the through hole (6), and the telescopic end of the hydraulic rod (7) is in close contact with the inner wall of the sealing ring (15).

3. The environmental detection gas collection device according to claim 1, characterized in that: The sealing plug (12) is located between the air ports (9), the bottom end of the air ports (9) is configured to be funnel-shaped, the sealing plug (12) is adapted to the shape of the funnel portion at the bottom end of the air ports (9), and the diameter of the top end of the sealing plug (12) is smaller than the diameter of the top end of the air ports (9).

4. The environmental detection gas collection device according to claim 3, characterized in that: Limit blocks (14) are fixedly installed on both sides of the upper position of the inner wall of the groove (3), and the inner cylinder (5) is located below the two limit blocks (14). The telescopic end of the hydraulic rod (7) is sleeved with a spring (13), and the two ends of the spring (13) are respectively fixedly connected to the top of the inner wall of the groove (3) and the top of the inner cylinder (5).

5. The environmental detection gas collection device according to claim 4, characterized in that: When the top of the inner cylinder (5) contacts the limit block (14), the side wall of the sealing plug (12) fits against the inner wall of the funnel at the bottom of the air port (9).

6. The environmental detection gas collection device according to claim 1, characterized in that: The bottom end of the main body (1) is threadedly sleeved with a sealing cover (16).

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