Gas leakage prevention gas sampling device

Abstract

The utility model discloses an anti-leakage gas sampling device, and particularly relates to the technical field of gas sampling devices, the anti-leakage gas sampling device comprises a sampler and a conveying pipe, a double-end threaded rod is rotated to drive a vertical plate I and a vertical plate II to move in opposite directions, and a rubber ring II and a rubber ring I are driven to move in opposite directions; when the first vertical plate and the second vertical plate move in the opposite directions, the protective plates on the two sides can be driven to move in the opposite directions, the C-shaped pipes on the two sides can be protected, and the conveying pipe, the C-shaped pipes and the filter screen can be conveniently installed through the structure. The conveying pipe, the C-shaped pipe and the filter screen can be conveniently detached for cleaning, the situation that other gas remains on the conveying pipe and the C-shaped pipe, and the later-stage gas detection effect is affected is avoided, the rubber ring is inserted into the groove for sealing treatment, the sealing effect is improved, the gas collecting speed can be increased through the flow dividing effect of the C-shaped pipe, and the situation that exhaust flow of the collected gas is large is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas sampling devices, and particularly relates to a gas sampling device for preventing air leakage. Background Technique

[0002] A gas sampling device is a device used to collect gas samples in a specific environment. Gas sampling devices are widely used in the field of environmental monitoring. They can collect pollutants in the atmosphere for analysis to evaluate air quality. In industrial production, they are used to detect the gas components in the process flow to ensure production safety and product quality. In laboratory research, they provide specific gas samples for scientific experiments. It provides an important tool for people to understand and analyze the gas characteristics in different environments.

[0003] Chinese Patent with publication number CN221426139U discloses a gas sampling device. By setting an air suction pipe, a fan and a filter screen, the effect of preventing impurity pollution of the sample can be achieved. The fan sucks in gas through the air suction pipe under the action of a power device. The gas is filtered through the filter screen, the connecting net and the fixing net, and the impurities inside the gas can be filtered out. The gas is discharged through the air outlet pipe. The fixing pipe can suck in gas under the action of the power device. The fixing pipe is arranged at a high position of the sampling bottle body, and the impurities that are not filtered out and have a small volume remain at the bottom end inside the sampling bottle body, which can prevent impurity pollution of the sample.

[0004] However, in the gas sampling device in the above solution, the air suction pipe and the filter screen are fixedly installed in the sampling device. During long-term use of the air delivery pipe, various impurities such as dust, particles, and oil stains may accumulate on the inner wall, which may affect the gas flow, and also affect the later gas detection effect, reducing the sampling efficiency and accuracy. The filter screen may be blocked during use, reducing the filtering effect of the filter screen, affecting the gas quality, and may also cause poor gas flow, increasing the operating pressure of the device, and even damaging other components of the device.

[0005] Therefore, it is very necessary to invent a gas sampling device for preventing air leakage. Content of the Utility Model

[0006] The purpose of the utility model is to provide a gas sampling device for preventing air leakage to solve the problems raised in the above background technique.

[0007] To achieve the above object, the utility model provides the following technical solution: A gas sampling device for preventing air leakage, including a sampler and a delivery pipe. Both sides of the sampler are connected with connecting pipes. A symmetrically distributed double-headed threaded rod is rotatably arranged at the top of the sampler. The outer side of the double-headed threaded rod is threadedly sleeved with a first vertical plate and a second vertical plate. Both the first vertical plate and the second vertical plate are slidably connected to the bottom of the sampler. A second rubber ring and a first rubber ring are respectively fixed on the sides of the first vertical plate and the second vertical plate close to each other. The delivery pipe is movably installed between the second rubber ring and the first rubber ring. Both sides of the delivery pipe are threadedly connected with C-shaped pipes. The other ends of the C-shaped pipes are threadedly connected with the connecting pipes. Symmetrically distributed rings are movably disassembled in the delivery pipe. A filter screen is fixed in the ring. A rubber column is fixed on one side of the first vertical plate. The rubber column movably penetrates through the delivery pipe and is inserted into the ring. Protective plates are fixed on one side of both the first vertical plate and the second vertical plate.

[0008] Preferably, square grooves are opened at both the top and the bottom of the ring. A spring telescopic rod is fixed in the square groove. The other end of the spring telescopic rod is fixed with a round head column. Rectangular grooves are symmetrically distributed and opened at both the top and the bottom of the inner wall of the delivery pipe. The round head column is movably inserted into the rectangular groove.

[0009] Preferably, circular grooves are opened on one side of both the ring and the delivery pipe. The rubber column is movably inserted into the circular groove.

[0010] Preferably, a long rod is fixed on one side of the ring. An intake pipe is communicated with the top of the delivery pipe.

[0011] Preferably, a plurality of vertical plates are fixed on the top of the sampler. The double-headed threaded rod is rotatably installed between two adjacent vertical plates.

[0012] Preferably, symmetrically distributed square plates are fixed on the top of the sampler. Screws are threadedly inserted into the square plates. One end of the double-headed threaded rod penetrates through one of the vertical plates and a disc is fixed at its end. The screw is movably inserted into the disc.

[0013] Preferably, threaded sleeves two are threadedly sleeved on both sides of the delivery pipe. The threaded sleeves two are threadedly connected with one end of the C-shaped pipe.

[0014] Preferably, threaded sleeves one are threadedly sleeved on one side of both the connecting pipes. The threaded sleeves one are threadedly connected with the other end of the C-shaped pipe.

[0015] Preferably, grooves are opened at both ends of the C-shaped pipe. Rubber rings are fixed at both ends of the delivery pipe and at the ends of the connecting pipes. The rubber rings are movably inserted into the grooves.

[0016] Compared with the prior art, the beneficial effect of the utility model lies in:

[0017] 1. Rotate the double-headed threaded rod, which will drive the first vertical plate and the second vertical plate to move towards each other. Subsequently, it will drive the second rubber ring and the first rubber ring to move towards each other, thereby inserting the rubber column into the conveying pipe and the circular ring. While fixing the conveying pipe, the filter screen can be further fixed. When the first vertical plate and the second vertical plate move towards each other, they can drive the protective plates on both sides to move towards each other, thereby protecting the C-shaped pipes on both sides. Through the above structure, it is convenient to install the conveying pipe, C-shaped pipe and filter screen, and it is also convenient to disassemble the conveying pipe, C-shaped pipe and filter screen for cleaning, avoiding the residual of other gases in the conveying pipe and C-shaped pipe, which affects the later gas detection effect;

[0018] 2. Insert the rubber ring into the groove for sealing treatment to improve the sealing effect. The gas collected by the intake pipe is transported to the C-shaped pipes on both sides through the conveying pipe. Utilizing the shunting effect of the C-shaped pipe, the gas collection speed can be increased, preventing the collected gas from flowing out too much, resulting in a high-pressure situation inside the C-shaped pipe, which affects the later gas collection effect of the C-shaped pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure provided by the present utility model;

[0020] Figure 2 It is a schematic diagram of the C-shaped pipe structure provided by the present utility model;

[0021] Figure 3 It is a schematic diagram of the conveying pipe structure provided by the present utility model;

[0022] Figure 4 Provided by the present utility model Figure 3 The enlarged schematic diagram of the structure at A in

[0023] Figure 5 It is a schematic diagram of the groove structure provided by the present utility model;

[0024] Figure 6 It is a schematic diagram of the circular ring structure provided by the present utility model;

[0025] Figure 7 Provided by the present utility model Figure 6 The enlarged schematic diagram of the structure at B in

[0026] In the figure: 1. Sampler; 11. Connecting pipe; 12. First threaded sleeve; 13. C-shaped pipe; 131. Groove; 14. Delivery pipe; 141. Rubber ring; 142. Rectangular groove; 15. Second threaded sleeve; 16. Intake pipe; 17. Square plate; 171. Screw; 18. Disc; 21. Vertical plate; 22. Double-headed threaded rod; 23. First vertical plate; 231. Protective plate; 232. Second vertical plate; 233. First rubber ring; 24. Second rubber ring; 25. Rubber column; 31. Ring; 311. Square groove; 32. Filter screen; 33. Long rod; 34. Round groove; 35. Spring telescopic rod; 36. Round-headed column. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment: As Figures 1-7 shown, the present invention provides a gas sampling device for preventing air leakage, including a sampler 1 and a delivery pipe 14. Connecting pipes 11 are connected to both sides of the sampler 1. Symmetrically distributed double-headed threaded rods 22 are rotatably arranged at the top of the sampler 1. First vertical plates 23 and second vertical plates 232 are threadedly sleeved on the outer sides of the double-headed threaded rods 22. The first vertical plates 23 and the second vertical plates 232 are both slidably connected to the bottom of the sampler 1. Second rubber rings 24 and first rubber rings 233 are respectively fixedly arranged on the sides of the first vertical plates 23 and the second vertical plates 232 close to each other. The delivery pipe 14 is movably installed between the second rubber rings 24 and the first rubber rings 233. C-shaped pipes 13 are threadedly connected to both sides of the delivery pipe 14. The other ends of the C-shaped pipes 13 are threadedly connected to the connecting pipes 11. Symmetrically distributed rings 31 are movably detachably arranged in the delivery pipe 14. Filter screens 32 are fixedly arranged in the rings 31. Rubber columns 25 are fixedly arranged on one side of the first vertical plates 23. The rubber columns 25 movably penetrate through the delivery pipe 14 and are inserted into the rings 31. Protective plates 231 are fixedly arranged on one side of the first vertical plates 23 and the second vertical plates 232.

[0029] Furthermore, square grooves 311 are opened at the top and bottom of the rings 31. Spring telescopic rods 35 are fixedly arranged in the square grooves 311. Round-headed columns 36 are fixedly arranged at the other ends of the spring telescopic rods 35. Symmetrically distributed rectangular grooves 142 are opened at the top and bottom of the inner wall of the delivery pipe 14. The round-headed columns 36 are movably inserted into the rectangular grooves 142.

[0030] Furthermore, circular grooves 34 are formed on one side of both the circular ring 31 and the conveying pipe 14. The rubber column 25 is movably inserted into the circular groove 34. The circular groove 34 is sealed by the rubber column 25, and the rubber ring II 24 further seals the circular groove 34.

[0031] Furthermore, a long rod 33 is fixedly provided on one side of the circular ring 31. An air inlet pipe 16 is communicated with the top of the conveying pipe 14, which is convenient for pulling out the circular ring 31.

[0032] Furthermore, a plurality of vertical plates 21 are fixedly provided on the top of the sampler 1. The double-headed threaded rod 22 is rotatably installed between two adjacent vertical plates 21, which is convenient for the double-headed threaded rod 22 to rotate.

[0033] Furthermore, symmetrically distributed square plates 17 are fixedly provided on the top of the sampler 1. Screws 171 are threadedly inserted into the square plates 17. One end of the double-headed threaded rod 22 penetrates through one of the vertical plates 21 and a disc 18 is fixedly provided at its end. The screw 171 is movably inserted into the disc 18, which is convenient for fixing the disc 18 and thus fixing the double-headed threaded rod 22.

[0034] Furthermore, threaded sleeves II 15 are threadedly sleeved on both sides of the conveying pipe 14. The threaded sleeves II 15 are threadedly connected to one end of the C-shaped pipe 13, which is convenient for connecting the conveying pipe 14 and one end of the C-shaped pipe 13.

[0035] Furthermore, threaded sleeves I 12 are threadedly sleeved on one side of the connecting pipe 11. The threaded sleeves I 12 are threadedly connected to the other end of the C-shaped pipe 13, which is convenient for connecting the connecting pipe 11 and the other end of the C-shaped pipe 13.

[0036] Furthermore, grooves 131 are formed at both ends of the C-shaped pipe 13. Rubber rings 141 are fixedly provided at both ends of the conveying pipe 14 and at the ends of the connecting pipe 11. The rubber rings 141 are movably inserted into the grooves 131 to improve the sealing performance.

[0037] Working principle: When this solution is in use, the circular ring 31 and the filter net 32 can be installed in the conveying pipe 14. During the movement of the circular ring 31 in the conveying pipe 14, the round head column 36 will squeeze the spring telescopic rod 35. When encountering the rectangular groove 142, the spring telescopic rod 35 will reset the round head column 36 and insert it into the rectangular groove 142, so as to realize the preliminary fixation of the circular ring 31 and the filter net 32;

[0038] Then, the rubber ring 141 can be inserted into the groove 131 for sealing treatment. Then, rotate the second threaded sleeve 15 to threadedly connect the delivery pipe 14 to one end of the C-shaped pipe 13. Then, rotate the first threaded sleeve 12 to threadedly connect the connecting pipe 11 to the other end of the C-shaped pipe 13. Finally, the disc 18 can be rotated to drive the double-headed threaded rod 22 to rotate, and then drive the first vertical plate 23 and the second vertical plate 232 to move towards each other. Then, drive the second rubber ring 24 and the first rubber ring 233 to move towards each other, so that the rubber column 25 is inserted into the delivery pipe 14 and the ring 31. While fixing the delivery pipe 14, the ring 31 and the filter screen 32 can be further fixed. When the first vertical plate 23 and the second vertical plate 232 move towards each other, the protective plates 231 on both sides can be driven to move towards each other, thereby protecting the C-shaped pipes 13 on both sides. Through the above structure, the delivery pipe 14, the C-shaped pipe 13 and the filter screen 32 can be disassembled for cleaning, avoiding the remaining of other gases in the delivery pipe 14 and the C-shaped pipe 13, which may affect the later gas detection effect.

[0039] The gas collected by the intake pipe 16 is transported to the C-shaped pipes 13 on both sides through the delivery pipe 14. By using the shunt function of the C-shaped pipes 13, the gas collection speed can be increased, preventing the excessive drainage of the collected gas, which may cause a high-pressure situation inside the C-shaped pipes 13 and affect the later gas collection effect of the C-shaped pipes 13. The filter screen 32 inside the C-shaped pipes 13 can filter the gas.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas sampling device for preventing air leakage, comprising a sampler (1) and a delivery pipe (14), characterized in that: Both sides of the sampler (1) are connected with connecting pipes (11). Symmetrically distributed double-headed threaded rods (22) are rotatably arranged at the top of the sampler (1). Vertical plates one (23) and vertical plates two (232) are sleeved on the outer side of the double-headed threaded rods (22) in a threaded manner. Both the vertical plates one (23) and the vertical plates two (232) are slidably connected to the bottom of the sampler (1). Rubber rings two (24) and rubber rings one (233) are respectively fixedly arranged on the sides of the vertical plates one (23) and the vertical plates two (232) that are close to each other. The conveying pipe (14) is movably installed between the rubber ring two (24) and the rubber ring one (233). Both sides of the conveying pipe (14) are threadedly connected with C-shaped pipes (13). The other ends of the C-shaped pipes (13) are threadedly connected with the connecting pipes (11). Symmetrically distributed rings (31) are movably and detachably arranged in the conveying pipe (14). Filter nets (32) are fixedly arranged in the rings (31). A rubber column (25) is fixedly arranged on one side of the vertical plate one (23). The rubber column (25) movably penetrates through the conveying pipe (14) and is inserted into the ring (31). Protective plates (231) are fixedly arranged on one side of both the vertical plate one (23) and the vertical plate two (232).

2. The gas sampling device for preventing air leakage according to claim 1, wherein: Square grooves (311) are respectively opened at the top and bottom of the ring (31). Spring telescopic rods (35) are fixedly arranged in the square grooves (311). The other ends of the spring telescopic rods (35) are fixedly provided with round head columns (36). Rectangular grooves (142) that are symmetrically distributed are respectively opened at the top and bottom of the inner wall of the conveying pipe (14). The round head columns (36) are movably inserted into the rectangular grooves (142).

3. The gas sampling device for preventing air leakage according to claim 1, wherein: Round grooves (34) are respectively opened on one side of the ring (31) and the conveying pipe (14). The rubber column (25) is movably inserted into the round grooves (34).

4. A gas sampling device for preventing air leakage according to claim 1, characterized in that: A long rod (33) is fixedly arranged on one side of the ring (31). An air inlet pipe (16) is communicated with the top of the conveying pipe (14).

5. The gas sampling device for preventing air leakage according to claim 1, wherein: A plurality of vertical plates (21) are fixedly arranged at the top of the sampler (1). The double-headed threaded rod (22) is rotatably installed between two adjacent vertical plates (21).

6. The gas sampling device for preventing air leakage according to claim 1, characterized in that: Symmetrically distributed square plates (17) are fixedly arranged at the top of the sampler (1). Screws (171) are threadedly inserted into the square plates (17). One end of the double-headed threaded rod (22) penetrates through one of the vertical plates (21) and a disc (18) is fixedly arranged at its end. The screw (171) is movably inserted into the disc (18).

7. The gas sampling device for preventing air leakage according to claim 1, wherein: Threaded sleeves two (15) are threadedly sleeved on both sides of the conveying pipe (14). The threaded sleeves two (15) are threadedly connected with one end of the C-shaped pipe (13).

8. The gas sampling device for preventing air leakage according to claim 1, wherein: Threaded sleeves one (12) are threadedly sleeved on one side of both the connecting pipes (11). The threaded sleeves one (12) are threadedly connected with the other ends of the C-shaped pipes (13).

9. A gas sampling device for preventing air leakage according to claim 1, characterized in that: Grooves (131) are respectively opened at both ends of the C-shaped pipe (13). Rubber rings (141) are fixedly arranged at both ends of the conveying pipe (14) and the ends of the connecting pipes (11). The rubber rings (141) are movably inserted into the grooves (131).

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