Gas sample collector

Abstract

The utility model relates to the technical field of environment detection devices, in particular to a gas sample collector, which solves the problem that gas in a collection bag is inconvenient to transport after gas collection, and comprises a vacuum box body, a cover plate is mounted at the top of the vacuum box body, and an upper lock catch is mounted in the middle of one side of the cover plate. A lower lock catch is arranged on the upper portion of one side of the vacuum box body, an air extractor is installed on one side of the vacuum box body and communicated with the vacuum box body through a connecting pipe, grips are installed on the two sides of the vacuum box body and connected with the two ends of a strap respectively, a sliding groove is formed in the upper portion of one side of the vacuum box body, and a sliding block is installed on the sliding groove. A fixing block is arranged on the upper portion of one side of the vacuum box body, a clamping block is fixedly connected to one side of the sliding block, a lifting rod is connected to the top of the clamping block, a lifting ring is fixedly connected to the top of the lifting ring, a spring is arranged between the fixing block and the clamping block, a gas collecting structure is installed in the vacuum box body and comprises a gas collecting bag, and a gas inlet pipe is fixedly connected to the gas collecting bag.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental detection devices, in particular to a gas sample collector. Background Art

[0002] As we all know, gas collectors are often used in the process of environmental testing to collect gases. In order to further test the quality of environmental gases, gas collectors are conventional instruments used to collect gas samples in the atmospheric environment or working environment. There are two methods for collecting gas: one is to allow a large amount of air to pass through liquid absorbents or solid adsorbents to enrich pollutants with lower concentrations in the atmosphere, such as the vacuum method and the membrane filter method; the other is to use containers (glass bottles, plastic bags, etc.) to collect air containing pollutants. The former measures the average concentration of pollutants in the atmosphere during the sampling time; the latter measures the instantaneous concentration or the average concentration over a short period of time.

[0003] The existing gas collector is provided with a vacuum box, an exhaust pump, a collection bag and other components. The collection bag is placed in the vacuum box and connected to the inlet pipe. The air in the vacuum box is extracted by the exhaust pump, and the external gas enters the collection bag under the action of atmospheric pressure. When the collection is completed, the collection bag is taken out, sealed with a plug, and brought back to the laboratory. However, after the collection is completed, the staff not only needs to carry the collection equipment, but also needs to hold the collection bag. Moreover, the collection bag is made of plastic, which is easily scratched by external objects and caused to break, resulting in the inability to complete the transportation.

[0004] To this end, we propose a gas sample collector. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a gas sample collector, which solves the problem that the gas in the collection bag is inconvenient to transport after the gas is collected.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas sample collector comprises a vacuum box, a cover plate is installed on the top of the vacuum box, an upper locking buckle is installed in the middle of one side of the cover plate, a lower locking buckle is arranged on the upper part of one side of the vacuum box, an air pump is installed on one side of the vacuum box, the air pump is connected to the vacuum box through a connecting pipe, grips are installed on both sides of the vacuum box, the two grips are respectively connected to the two ends of the shoulder strap, a slide groove is provided on the upper part of one side of the vacuum box, a sliding block is installed on the slide groove, a fixed block is provided on the upper part of one side of the vacuum box, a card block is fixedly connected to one side of the sliding block, a lifting rod is connected to the top of the card block, a lifting ring is fixedly connected to the top of the lifting ring, a spring is arranged between the fixed block and the card block, and an air collecting structure is installed inside the vacuum box, the air collecting structure comprises an air collecting bag, an air inlet pipe is fixedly connected to the air collecting bag, a limiting ring is arranged on the air inlet pipe, a card groove is arranged on the air inlet pipe, and a blockage is arranged at one end of the air inlet pipe.

[0009] Furthermore, the vacuum box body and the cover plate are hingedly connected by a hinge, a through hole is provided on one side of the vacuum box body, the air inlet pipe passes through the through hole, and the diameter of the through hole is smaller than the outer diameter of the limiting ring.

[0010] Furthermore, the slider is T-shaped, and the slider is connected to the slide groove by sliding.

[0011] Furthermore, the lifting rod passes through the fixed block, and the lifting rod and the fixed block are connected by sliding.

[0012] Furthermore, an arc-shaped limiting groove is provided at the bottom of the clamping block, and the arc-shaped limiting groove matches the clamping groove.

[0013] Further, the plug is made of rubber.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a gas sample collector, which has the following beneficial effects:

[0016] The gas sample collector is provided with a card slot and a limit ring on the air inlet pipe. The card block limits the air inlet pipe in the card slot under the action of the spring force. After the gas is collected, the air inlet pipe is sealed with a rubber plug to prevent the gas from overflowing. The gas collecting bag filled with gas is placed in a vacuum box to prevent foreign objects from contacting the gas collecting bag during transportation, thereby improving safety. It does not occupy other space and also improves transportation convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the isometric structure of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the slider and the clamping block in the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the collecting structure in the utility model;

[0020] Figure 4 For this utility model Figure 1 A schematic diagram of the structure with a partial enlargement shown in FIG.

[0021] In the figure: 1. vacuum box; 2. cover plate; 3. upper locking buckle; 4. lower locking buckle; 5. vacuum pump; 6. connecting pipe; 7. handle; 8. shoulder strap; 9. slide groove; 10. fixing block; 11. slider; 12. clamping block; 13. lifting ring; 14. spring; 15. air collecting bag; 16. air inlet pipe; 17. limiting ring; 18. clamping groove; 19. plug; 20. lifting rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model provides a gas sample collector, comprising a vacuum box 1, a cover plate 2 is installed on the top of the vacuum box 1, the cover plate 2 is made of transparent material, an upper lock buckle 3 is installed in the middle of one side of the cover plate 2, a lower lock buckle 4 is arranged on the upper part of one side of the vacuum box 1, an air pump 5 is installed on one side of the vacuum box 1, a battery, a fan and other components are arranged inside the air pump 5, and a switch is arranged on the top, the air pump 5 is connected with the vacuum box 1 through a connecting pipe 6, handles 7 are installed on both sides of the vacuum box 1, and the two handles 7 are respectively connected to the two ends of the shoulder strap 8, a slide groove 9 is arranged on the upper part of one side of the vacuum box 1, a slider 11 is installed on the slide groove 9, the slider 11 is T-shaped, and the slider 11 is connected to the slide groove 9 by sliding, a fixed block 10 is arranged on the upper part of one side of the vacuum box 1, and a card block 12 is fixedly connected to one side of the slider 11, and the card block 1 2 is connected with a lifting rod 20 at the top, and the lifting rod 20 passes through the fixed block 10. The lifting rod 20 is connected to the fixed block 10 by sliding. The top of the lifting ring 13 is fixedly connected with the lifting ring 13. A spring 14 is arranged between the fixed block 10 and the clamping block 12. A gas collecting structure is installed inside the vacuum box 1. The gas collecting structure includes a gas collecting bag 15. The gas collecting bag 15 is made of plastic. An air inlet pipe 16 is fixedly connected to the air collecting bag 15. A limiting ring 17 is arranged on the air inlet pipe 16. The vacuum box 1 and the cover plate 2 are hinged by hinges. A through hole is arranged on one side of the vacuum box 1. The air inlet pipe 16 passes through the through hole. The diameter of the through hole is smaller than the outer diameter of the limiting ring 17. A card slot 18 is arranged on the air inlet pipe 16. An arc-shaped limiting groove is arranged at the bottom of the clamping block 12. The arc-shaped limiting groove matches the card slot 18. A plug 19 is arranged at one end of the air inlet pipe. The plug 19 is made of rubber.

[0024] To sum up, when using the gas sample collector, the collection bag is placed in the vacuum box 1, the lifting ring 13 is pulled to drive the card block 12 to move upward, and the air inlet pipe 16 passes through the through hole on one side of the vacuum box 1. The lifting ring 13 is loosened, and the spring 14 recovers its deformation, so that the card holder is stuck in the card slot 18, the cover 2 is closed, and the vacuum pump 5 is started to form a negative pressure inside the vacuum box 1. Under the action of atmospheric pressure, the gas enters the collection bag through the air inlet pipe 16, and the expansion state of the collection bag is observed through the transparent cover 2. When the collection is completed, the plug 19 is inserted into the air inlet of the air inlet pipe 16 to complete the collection of the gas. During transportation, due to the protection of the vacuum box 1, the safety of collecting gas is improved, and at the same time, it will not occupy the hands of the staff, thereby improving convenience.

[0025] 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. A gas sample collector, comprising a vacuum box (1), characterized in that: A cover plate (2) is installed on the top of the vacuum box (1), an upper lock buckle (3) is installed in the middle of one side of the cover plate (2), a lower lock buckle (4) is provided on the upper part of one side of the vacuum box (1), an air pump (5) is installed on one side of the vacuum box (1), the air pump (5) is connected to the vacuum box (1) through a connecting pipe (6), handles (7) are installed on both sides of the vacuum box (1), and the two handles (7) are respectively connected to the two ends of the shoulder strap (8), a slide groove (9) is provided on the upper part of one side of the vacuum box (1), a slider (11) is installed on the slide groove (9), and a A fixed block (10), a block (12) is fixedly connected to one side of the slider (11), a lifting rod (20) is connected to the top of the block (12), a lifting ring (13) is fixedly connected to the top of the lifting ring (13), a spring (14) is arranged between the fixed block (10) and the block (12), an air collecting structure is installed inside the vacuum box (1), the air collecting structure comprises an air collecting bag (15), an air intake pipe (16) is fixedly connected to the air collecting bag (15), a limiting ring (17) is arranged on the air intake pipe (16), a slot (18) is arranged on the air intake pipe (16), and a plug (19) is arranged at one end of the air intake pipe.

2. A gas sample collector according to claim 1, characterized in that: The vacuum box body (1) and the cover plate (2) are hingedly connected via a hinge, a through hole is provided on one side of the vacuum box body (1), the air inlet pipe (16) passes through the through hole, and the diameter of the through hole is smaller than the outer diameter of the limiting ring (17).

3. A gas sample collector according to claim 1, characterized in that: The sliding block (11) is T-shaped, and the sliding block (11) is connected to the sliding groove (9) by sliding.

4. The gas sample collector according to claim 1, characterized in that: The lifting rod (20) passes through the fixing block (10), and the lifting rod (20) is connected to the fixing block (10) by sliding.

5. The gas sample collector according to claim 1, characterized in that: The bottom of the clamping block (12) is provided with an arc-shaped limiting groove, and the arc-shaped limiting groove matches the clamping groove (18).

6. The gas sample collector according to claim 1, characterized in that: The plug (19) is made of rubber.

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