Gas sampling device for gas detection

Abstract

The utility model provides a gas sampling device for gas detection, which relates to the technical field of gas detection and comprises a main frame body, a support frame, a gas inlet cylinder and a transfer chamber, a multi-station fixing mechanism is arranged at the top of the support frame, a gas collecting bottle is fixedly mounted in the multi-station fixing mechanism, a transfer mechanism is arranged between the gas inlet cylinder and the transfer chamber, and the gas collecting bottle is fixedly mounted in the transfer chamber. A gas transmission mechanism is arranged on one side of the transfer chamber; by screwing the fastening nut at one end of the fastening bolt to move outwards, the two clamping plates are pulled to be far away from each other to increase the distance, a plurality of gas collection bottles can be plugged between the two clamping plates, then the fastening nut on the fastening bolt is screwed, the positions of the clamping plates are locked through the fastening nut, and the two clamping plates can clamp the gas collection bottles tightly. The gas collection bottles are fixed in the rotating frame, so that gas transmission sampling can be performed on the plurality of gas collection bottles at the same time, a plurality of detection samples can be obtained, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas detection technology, and in particular to a gas sampling device for gas detection. Background Technology

[0002] Gas detection is a technology used to monitor the concentration of gases in the environment. It is widely used in many fields such as industry, construction, environmental monitoring, fire protection, and medical care. It is mainly achieved through gas detectors, which detect the concentration of different gases based on chemical reactions or physical phenomena (such as electrochemical reactions, optical interference, infrared absorption, etc.).

[0003] With economic development, the types and concentrations of gases in the living environment have changed significantly. The presence of certain gases or the increase in their concentration pose a threat to human health, especially malodorous gases in the air. Therefore, it is of great significance to conduct detection work on these harmful gases. Existing gas detection devices are prone to errors when detecting gas components because the dispersion coefficients and stability of the components in the gas are different. This affects the detection accuracy of the device, leading to reduced utilization efficiency and detection accuracy. Therefore, this utility model proposes a gas sampling device for gas detection to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a gas sampling device for gas detection, which solves the problem that in the prior art, due to the different dispersion coefficients and stability of various components in the gas, errors are prone to occur in conventional detection modes, affecting the detection accuracy of the device, resulting in reduced utilization efficiency and detection accuracy.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a gas sampling device for gas detection, including a main frame, a support frame, an air inlet cylinder and a transfer chamber. The support frame is fixedly connected to the top of the main frame, an air inlet cylinder is provided on one side of the main frame, a transfer chamber is provided on the top of the main frame, a multi-position fixing mechanism is provided on the top of the support frame, a gas collecting bottle is fixedly installed inside the multi-position fixing mechanism, a transfer mechanism is provided between the air inlet cylinder and the transfer chamber, and a gas delivery mechanism is provided on one side of the transfer chamber.

[0006] A further improvement is that the multi-station fixing mechanism includes a rotating frame, clamping plates, fastening bolts, and fastening nuts. The top of the support frame is hinged to the rotating frame via a rotating shaft. The two sides of the rotating frame are symmetrically slidably connected to clamping plates. One end of one clamping plate is symmetrically fixedly connected to fastening bolts at both ends. One end of the fastening bolt passes through the interior of the other clamping plate and is threadedly connected to a fastening nut.

[0007] A further improvement is that the gas delivery mechanism includes a hose and a tube, one side of the transfer chamber is connected to multiple hoses, the bottom end of the hose is connected to a tube, the top of the gas collecting bottle is provided with a control valve, the bottom end of the tube is inserted into the top of the gas collecting bottle, and the bottom end of the tube is provided with a rubber sleeve.

[0008] A further improvement is that the transfer mechanism includes an air pump and an air pipe. An air pump is provided on one side of the air inlet cylinder. The input end of the air pump is connected to the bottom end of the air inlet cylinder through the air pipe, and the output end of the air pump is connected to one side of the transfer chamber through the air pipe.

[0009] A further improvement is that a pin is fixedly connected to the bottom of the air intake cylinder, and a retaining ring is provided inside the air intake cylinder, with a sealing ring fitted inside the retaining ring.

[0010] A further improvement is that the top of the rotating frame is provided with multiple through holes, and the bottom of the rotating frame is fixedly connected with multiple arc-shaped rods, with the bottom of the gas collecting bottle fitting and connected to the inner side of the arc-shaped rods.

[0011] A further improvement is that the clamp plate has multiple arc-shaped grooves inside, the inside of which is fitted and connected to the outside of the gas collecting bottle, and the fastening nut is symmetrically fixed with levers on both sides.

[0012] The beneficial effects of this utility model are as follows: by tightening the fastening nut at one end of the fastening bolt and moving it outward, the two clamping plates are pulled apart to increase the distance between them. Multiple gas collecting bottles can be inserted between the two clamping plates, and the gas collecting bottles are supported by the arc-shaped rod. Then, the two clamping plates are pushed closer to each other until the arc-shaped groove on the clamping plate is in contact with the outer wall of the gas collecting bottle. Then, the fastening nut on the fastening bolt is tightened, and the position of the clamping plate is locked by the fastening nut. The two clamping plates can clamp the gas collecting bottle, so that the gas collecting bottle is fixed inside the rotating frame. At this time, multiple gas collecting bottles can be sampled at the same time to obtain multiple test samples and improve the accuracy of the test results. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention;

[0014] Figure 2 This is a schematic diagram of the main frame structure of this utility model;

[0015] Figure 3 This is a side view of the present invention;

[0016] Figure 4 This is a schematic diagram of the rotating frame structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the air intake structure of this utility model.

[0018] In the diagram: 1. Main frame; 2. Support frame; 3. Air inlet cylinder; 4. Transfer chamber; 5. Rotating shaft; 6. Rotating frame; 7. Gas collection bottle; 8. Clamping plate; 9. Fastening bolt; 10. Fastening nut; 11. Air pump; 12. Vent pipe; 13. Hose; 14. Insertion tube; 15. Pin; 16. Sealing ring. Detailed Implementation

[0019] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0020] according to Figure 1-5 As shown in the figure, this embodiment proposes a gas sampling device for gas detection, including a main frame 1, a support frame 2, an air inlet cylinder 3, and a transfer chamber 4. The support frame 2 is fixedly connected to the top of the main frame 1. The air inlet cylinder 3 is provided on one side of the main frame 1. The transfer chamber 4 is provided on the top of the main frame 1. A multi-station fixing mechanism is provided on the top of the support frame 2. A gas collecting bottle 7 is fixedly installed inside the multi-station fixing mechanism. A transfer mechanism is provided between the air inlet cylinder 3 and the transfer chamber 4. A gas conveying mechanism is provided on one side of the transfer chamber 4. Multiple gas collecting bottles 7 are fixed to the support frame 2 by the multi-station fixing mechanism. The gas collecting bottle is inverted inside the air inlet cylinder 3. The gas collecting bottle releases the collected gas into the air inlet cylinder 3. The gas is conveyed to the interior of the transfer chamber 4 by the transfer mechanism. Then, the gas in the transfer chamber 4 is simultaneously dispensed into different gas collecting bottles 7 by the gas conveying mechanism, so that multiple test samples can be obtained at the same time, improving the accuracy of the test.

[0021] The multi-station fixing mechanism includes a rotating frame 6, a clamping plate 8, a fastening bolt 9, and a fastening nut 10. The top of the support frame 2 is hinged to the rotating frame 6 via a rotating shaft 5. The clamping plates 8 are symmetrically slidably connected to both sides of the rotating frame 6. Fastening bolts 9 are symmetrically fixed to both ends of one of the clamping plates 8. One end of the fastening bolt 9 passes through the interior of the other clamping plate 8 and is threadedly connected to a fastening nut 10.

[0022] The top of the rotating frame 6 is provided with multiple through holes, and the bottom of the rotating frame 6 is fixedly connected with multiple arc-shaped rods. The bottom of the gas collecting bottle 7 is fitted and connected to the inner side of the arc-shaped rods. The inside of the clamping plate 8 is provided with multiple arc-shaped grooves, and the inside of the arc-shaped grooves is fitted and connected to the outer side of the gas collecting bottle 7. The fastening nut 10 is symmetrically fixedly connected with paddle blocks on both sides.

[0023] Tighten the fastening nut 10 at one end of the fastening bolt 9 to move it outward, pulling the two clamping plates 8 away from each other to increase the distance. Multiple gas collecting bottles 7 can be inserted between the two clamping plates 8 and supported by the arc-shaped rod. Then push the two clamping plates 8 closer to each other until the arc-shaped groove on the clamping plate 8 fits against the outer wall of the gas collecting bottle 7. Tighten the fastening nut 10 on the fastening bolt 9 to lock the position of the clamping plate 8. The two clamping plates 8 can clamp the gas collecting bottle 7, fixing the gas collecting bottle 7 inside the rotating frame 6. At this time, multiple gas collecting bottles 7 can be sampled at the same time to obtain multiple test samples and improve the accuracy of the test results. The rotating frame 6 can rotate around the top of the support frame 2 through the rotating shaft 5, so that the rotating frame 6 is tilted, which facilitates the loading and unloading of the gas collecting bottle 7 between the two clamping plates 8.

[0024] The bottom of the air inlet cylinder 3 is fixedly connected to a pin 15. The inside of the air inlet cylinder 3 is provided with a retaining ring, and a sealing ring 16 is fitted inside the retaining ring. The top of the gas collection tank is provided with a spring valve. When the gas collection tank is inverted inside the air inlet cylinder 3, the pin 15 can push open the valve core of the spring valve, so that the gas collection tank releases the collected gas into the air inlet cylinder 3. The sealing ring 16 on the retaining ring can fill the gap between it and the gas collection tank to ensure the airtightness between the air inlet cylinder 3 and the gas collection tank.

[0025] The gas delivery mechanism includes a hose 13 and a tube 14. A plurality of hoses 13 are connected to one side of the transfer chamber 4. The bottom end of the hose 13 is connected to the tube 14. The top end of the gas collecting bottle 7 is provided with a control valve. The bottom end of the tube 14 is inserted into the top end of the gas collecting bottle 7. The bottom end of the tube 14 is provided with a rubber sleeve. When the bottom end of the tube 14 is inserted into the top of the gas collecting bottle 7, the rubber sleeve can fill the gap between the top end of the gas collecting bottle 7 and the tube 14 to ensure the sealing between the tube 14 and the gas collecting bottle 7. Then the control valve at the top end of the gas collecting bottle 7 is opened.

[0026] The transfer mechanism includes an air pump 11 and a vent pipe 12. An air pump 11 is provided on one side of the air inlet cylinder 3. The input end of the air pump 11 is connected to the bottom end of the air inlet cylinder 3 through the vent pipe 12. The output end of the air pump 11 is connected to one side of the transfer chamber 4 through the vent pipe 12. The air pump 11 and the vent pipe 12 work together to release the collected gas from the gas collection tank into the air inlet cylinder 3 and automatically transport it to the interior of the transfer chamber 4. The transfer chamber 4 then transports the gas to the interior of the gas collection bottle 7 through the hose 13 and the insertion tube 14. After the inflation time is reached, the control valve is closed and the insertion tube 14 is pulled out from the top of the gas collection bottle 7. Then the gas collection bottle 7 is taken out from the interior of the rotating frame 6, completing the entire sampling process.

[0027] This gas sampling device for gas detection involves tightening the fastening nut 10 at one end of the fastening bolt 9 to move it outward, pulling the two clamping plates 8 apart to increase the distance between them. This allows multiple gas collecting bottles 7 to be inserted between the two clamping plates 8, and the gas collecting bottles 7 are supported by the arc-shaped rod. Then, the two clamping plates 8 are pushed closer together until the arc-shaped groove on the clamping plate 8 fits against the outer wall of the gas collecting bottle 7. Finally, the fastening nut 10 on the fastening bolt 9 is tightened, locking the position of the clamping plates 8. The two clamping plates 8 can clamp the gas collecting bottles 7, fixing them inside the rotating frame 6. At this point, multiple gas collecting bottles 7 can be sampled simultaneously to obtain multiple test samples, improving the accuracy of the test results.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gas sampling device for gas detection, comprising a main frame (1), a support frame (2), a gas inlet cylinder (3) and a transfer chamber (4), characterized in that: The top of the main frame body (1) is fixedly connected with a support frame (2), one side of the main frame body (1) is provided with an air inlet cylinder (3), the top of the main frame body (1) is provided with a transfer chamber (4), the top of the support frame (2) is provided with a multi-station fixing mechanism, a gas collecting bottle (7) is fixedly installed in the multi-station fixing mechanism, a transfer mechanism is arranged between the air inlet cylinder (3) and the transfer chamber (4), and one side of the transfer chamber (4) is provided with a gas conveying mechanism. The multi-station fixing mechanism comprises a rotating frame (6), clamping plates (8), fastening bolts (9) and fastening nuts (10), the top of the support frame (2) is hingedly connected with the rotating frame (6) through a rotating shaft (5), the two sides of the rotating frame (6) are symmetrically and slidably connected with the clamping plates (8), the two ends of one of the clamping plates (8) are fixedly connected with the fastening bolts (9), and one end of the fastening bolt (9) penetrates through the inside of the other clamping plate (8) and is threadedly connected with the fastening nut (10).

2. The gas sampling device for gas detection according to claim 1, characterized by: The gas conveying mechanism comprises a hose (13) and a cannula (14), a plurality of hoses (13) are communicated with one side of the transfer chamber (4), the bottom end of the hose (13) is communicated with the cannula (14), the top end of the gas collecting bottle (7) is provided with a control valve, the bottom end of the cannula (14) is inserted into the top end of the gas collecting bottle (7), and the bottom end of the cannula (14) is provided with a rubber sleeve.

3. The gas sampling device for gas detection according to claim 1, characterized by: The transfer mechanism comprises an air pump (11) and an air pipe (12), one side of the air inlet cylinder (3) is provided with the air pump (11), the input end of the air pump (11) is communicated with the bottom end of the air inlet cylinder (3) through the air pipe (12), and the output end of the air pump (11) is communicated with one side of the transfer chamber (4) through the air pipe (12).

4. The gas sampling device for gas detection according to claim 1, characterized by: The bottom of the air inlet cylinder (3) is fixedly connected with a thimble (15), and the inside of the air inlet cylinder (3) is provided with a clasp, and the inside of the clasp is attached with a sealing ring (16).

5. The gas sampling device for gas detection according to claim 1, characterized by: The top of the rotating frame (6) is provided with a plurality of through holes, the bottom of the rotating frame (6) is fixedly connected with a plurality of arc-shaped rods, and the bottom of the gas collecting bottle (7) is attached to the inner side of the arc-shaped rods.

6. The gas sampling device for gas detection according to claim 1, characterized by: The inside of the clamping plate (8) is provided with a plurality of arc-shaped grooves, the inside of the arc-shaped grooves is attached to the outer side of the gas collecting bottle (7), and the two sides of the fastening nut (10) are fixedly connected with the knobs.

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