An environmental monitoring gas collection device

Abstract

This utility model relates to the technical field of collection devices, and in particular to an environmental gas collection device, comprising: a piston rod disposed inside a collection tube; a sealing assembly disposed at one end of the collection tube, the sealing assembly comprising: a housing fixedly disposed at one end of the collection tube; a plate disposed inside the housing, with an inner protrusion penetrating through the inner wall of the housing and rotatably connected to the housing; one end of a rectangular rod inserted into the piston rod, and the other end fixedly connected to the inner protrusion of the plate; and one end of a tube inserted into the housing; the sealing assembly on this gas collection device controls the rotation of the piston rod to drive the rectangular rod to rotate accordingly, causing the plate to rotate inside the housing, thus separating the hole from the tube and preventing air flow, thereby achieving a sealing effect. Compared with existing devices, the sealing is easier to adjust.

Description

Technical Field

[0001] This utility model relates to the technical field of collection devices, and in particular to an environmental gas collection device for monitoring. Background Technology

[0002] Environmental protection generally refers to all actions taken by human beings to solve existing or potential environmental problems, coordinate the relationship between human beings and the environment, protect the human living environment, and ensure the sustainable development of the economy and society. It requires the collection and testing of gas samples.

[0003] Existing devices typically utilize a negative pressure collector, resembling a syringe in shape. By pulling a piston rod, a negative pressure is created inside, drawing in external air to collect it. However, existing devices lack a proper sealing device at the outlet after gas collection, making it inconvenient to close the outlet. Therefore, a gas collection device was designed to address the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide an environmental gas collection device to solve the problems mentioned in the background art.

[0005] The technical solution adopted in this utility model is: An environmental gas collection device includes: a piston rod disposed inside a collection tube; a sealing assembly disposed at one end of the collection tube, the sealing assembly including: a housing fixedly disposed at one end of the collection tube; a plate disposed inside the housing, with an inner protrusion passing through the inner wall of the housing and rotatably connected to the housing; one end of a rectangular rod inserted into the piston rod, and the other end fixedly connected to the inner protrusion of the plate; one end of a tube inserted into the housing; a ring fixedly sleeved on the outer wall of the tube; a spring sleeved on the outer side of the tube, with both ends fixedly connected to the inner wall of the housing and the ring, respectively; and holes formed in the housing and the plate.

[0006] Optionally, the inner wall diameter of the tube is the same as the inner wall diameter of the hole.

[0007] Optionally, the sealing assembly further includes a sealing ring fixedly bonded to one end of the tube body.

[0008] Optionally, the closure assembly further includes a pull button fixedly disposed at one end of the piston rod.

[0009] Optionally, the tube body and the holes are provided in four sets.

[0010] Optionally, the sealing assembly further includes: a cylinder fixedly disposed on the inner wall of the housing corresponding to the tube body; a second spring disposed inside the cylinder and fixedly connected to the inner wall of the housing; an arc-shaped block inserted into the inside of the cylinder and connected to the second spring; and a positioning ring fixedly disposed on the plate body corresponding to the position of the hole.

[0011] Optionally, a central assembly is provided at one end of the collecting tube, the central assembly further comprising: an external threaded ring fixedly disposed at one end of the collecting tube; and a conical shell sleeved on the outside of the external threaded ring and threadedly connected to the external threaded ring.

[0012] Optionally, the central assembly further includes a protrusion fixedly disposed on the outer side wall of the conical shell.

[0013] Compared with the prior art, the beneficial effects of this utility model are: The sealing component on this gas collection device controls the rotation of the piston rod, which in turn drives the rectangular rod to rotate, causing the plate to rotate inside the shell. This isolates the holes from the tube, preventing airflow and achieving a sealing effect. Compared to existing devices, this sealing is easier to adjust. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the structure of the centralized components in this application; Figure 3 This is a schematic diagram of the structure of the enclosed component in this application; Figure 4 This is a schematic diagram of the internal structure of the cylinder in this application.

[0016] Reference numerals: 11. Collection tube; 12. Piston rod; 2. Enclosed assembly; 21. Housing; 22. Plate; 23. Rectangular rod; 231. Pull button; 24. Tube; 241. Sealing ring; 25. Ring body; 26. Spring one; 27. Hole; 28. Cylinder; 29. ​​Spring two; 291. Arc block; 292. Positioning ring; 3. Centralized assembly; 31. External threaded ring; 32. Conical shell; 33. Raised bar. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] Given that current technology generally utilizes a negative pressure collector, which resembles a syringe in shape, the collection of air is achieved by pulling a piston rod to create negative pressure inside and drawing in external air. However, the outlet at one end of the existing device lacks a good sealing device for the intake port after gas collection, making it inconvenient to close the outlet.

[0019] As shown in the attached figures, this embodiment of the invention provides an environmental gas collection device for detection. The device includes: a piston rod 12 disposed inside a collection tube 11; a sealing assembly 2 disposed at one end of the collection tube 11, the sealing assembly 2 including: a housing 21 fixedly disposed at one end of the collection tube 11; a plate 22 disposed inside the housing 21, with an inner protrusion passing through the inner wall of the housing 21 and rotatably connected to the housing 21; a rectangular rod 23 with one end inserted into the piston rod 12 and the other end fixedly connected to the inner protrusion of the plate 22; a tube 24 with one end inserted into the housing 21; a ring 25 fixedly sleeved on the outer wall of the tube 24; a spring 26 sleeved on the outer side of the tube 24, with both ends fixedly connected to the inner wall of the housing 21 and the ring 25 respectively; and a hole 27 formed in the housing 21 and the plate 22.

[0020] In operation, first, control the piston rod 12 to rotate 90 degrees. During this rotation, because the rectangular rod 23 is inserted into the piston rod 12, the rotation of the piston rod 12 drives the rectangular rod 23 to rotate as well. One end of the rectangular rod 23 is fixedly connected to the inner protrusion of the plate 22, causing the plate 22 to rotate 90 degrees, aligning the hole 27 on the plate 22 with the hole 27 on the housing 21 (the hole 27 on the housing 21 is always aligned with the tube 24). The spring 26 rebounds, pushing the ring 25 to move, causing one end of the tube 24 to fit against the plate 22. At this point, pulling the piston rod 12 creates a negative pressure inside the collecting tube 11, allowing gas to enter the collecting tube 11 through the tube 24 and the hole 27. Then, controlling the piston rod 12 to rotate 90 degrees causes the plate 22 to rotate accordingly, misaligning the hole 27 on the plate 22 with the hole on the housing 21. The plate 22 prevents the tube 24 from connecting with the hole 27, thus providing a sealing effect.

[0021] In some embodiments, the inner wall diameter of the tube 24 is the same as the inner wall diameter of the hole 27.

[0022] Having the same inner diameter allows for better alignment, enabling smoother gas flow.

[0023] In some embodiments, the sealing component 2 further includes a sealing ring 241 fixedly bonded to one end of the tube body 24.

[0024] The design of the sealing ring 241 can reduce gaps and improve its sealing performance.

[0025] In some embodiments, the closure assembly 2 further includes a pull button 231 fixedly disposed at one end of the piston rod 12.

[0026] The design of the pull button 231 makes it easy to grip and pull the piston rod, while the grooves on the surface of the pull button 231 can increase friction and facilitate rotation.

[0027] In some embodiments, the tube body 24 and the holes 27 are provided in four sets.

[0028] It is equipped with four groups to increase airflow, making it more efficient during collection.

[0029] In some embodiments, the enclosing component 2 further includes: a cylinder 28 fixedly disposed on the inner wall of the housing 21 corresponding to the tube 24; a second spring 29 disposed inside the cylinder 28 and fixedly connected to the inner wall of the housing 21; an arc-shaped block 291 inserted at one end into the cylinder 28 and connected to the second spring 29; and a positioning ring 292 fixedly disposed on the plate 22 corresponding to the position of the hole 27.

[0030] When the plate 22 rotates, the positioning ring 292 will squeeze the arc block 291, causing the arc block 291 to retract into the inside of the cylinder 28. After the arc block 291 is aligned with the positioning ring 292, the spring 29 rebounds and pushes the arc block 291 to move so that it is inserted into the inside of the positioning ring 292. At the same time, the tube 24 is aligned with the hole 27 on the plate 22 for easy use.

[0031] In some embodiments, a concentrating component 3 is provided at one end of the collecting tube 11. The concentrating component 3 further includes: an external threaded ring 31 fixedly disposed at one end of the collecting tube 11; and a conical shell 32 sleeved on the outside of the external threaded ring 31 and threadedly connected to the external threaded ring 31.

[0032] When venting gas, simply thread the conical shell 32 to the external threaded ring 31 to concentrate the gas vented from the four tubes 24.

[0033] In some embodiments, the central assembly 3 further includes a protrusion 33 fixedly disposed on the outer side wall of the conical shell 32.

[0034] The design of the convex strip 33 can increase friction, making it easier to control the rotation of the conical shell 32.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An environmental monitoring gas collection device, comprising: The collection tube (11) has a piston rod (12) inside. The characteristic feature is that a sealing component (2) is provided at one end of the collecting tube (11), the sealing component (2) comprising: The housing (21) is fixedly disposed at one end of the collecting tube (11); The plate (22) is disposed inside the housing (21), and the inner protrusion rod passes through the inner wall of the housing (21) and is rotatably connected to the housing (21); A rectangular rod (23) has one end inserted into the interior of the piston rod (12) and the other end fixedly connected to the inner protrusion of the plate (22); The tube (24) is inserted into the interior of the housing (21) at one end; The ring (25) is fixedly sleeved on the outer wall of the tube (24); Spring 1 (26) is sleeved on the outside of the tube (24), and its two ends are fixedly connected to the inner wall of the shell (21) and the ring (25) respectively; Holes (27) are formed in the shell (21) and the plate (22).

2. The environmental detection gas collecting device according to claim 1, wherein The inner wall diameter of the tube (24) is the same as the inner wall diameter of the hole (27).

3. The environmental detection gas collection device of claim 1, wherein, The enclosure component (2) also includes: A sealing ring (241) is fixedly bonded to one end of the tube body (24).

4. The environmental detection gas collection device of claim 1, wherein, The enclosure component (2) also includes: A pull button (231) is fixedly installed at one end of the piston rod (12).

5. The environmental detection gas collection device of claim 1, wherein, The tube body (24) and the holes (27) are provided in four sets.

6. The environmental detection gas collection device of claim 1, wherein, The enclosure component (2) also includes: The cylinder (28) is fixedly disposed on the inner wall of the shell (21) corresponding to the tube (24); Spring 2 (29) is disposed inside the cylinder (28) and is fixedly connected to the inner wall of the housing (21); An arc-shaped block (291) is inserted into the interior of the cylinder (28) at one end and connected to the second spring (29); The positioning ring (292) is fixedly installed on the plate (22) corresponding to the position of the hole (27).

7. The environmental detection gas collection device of claim 1, wherein, One end of the collection tube (11) is provided with a concentrating component (3), and the concentrating component (3) further includes: An external threaded ring (31) is fixedly disposed at one end of the collecting tube (11); A conical shell (32) is fitted onto the outside of the external threaded ring (31) and is threadedly connected to the external threaded ring (31).

8. The environmental detection gas collection device of claim 7, wherein, The centralized component (3) also includes: The protrusion (33) is fixedly disposed on the outer side wall of the conical shell (32).

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