Efficient sampling device for gas detection

Abstract

The utility model relates to gas sampling equipment technical field discloses a kind of high-efficiency sampling devices for gas detection, including bottom shell, the inside contact of bottom shell has bearing disc, the top of bearing disc is fixedly connected with handle, the top of bearing disc is fixedly connected with sampling tank, the bottom of sampling tank is movably penetrated the top of bearing disc, the bottom of bottom shell is equipped with air inlet hole, the inner wall of air inlet hole is fixedly installed with air inlet fan, sealing sampling assembly is provided on bearing disc in the utility model, drive rotary ring rotation by the meshing transmission of tooth A and tooth B. The arc sliding hole of rotary ring bottom and the interaction of limiting rod make the accurate movement of flap along with sliding slot, the sealing process of sampling tank is automatically completed every 90 degrees rotation of bottom shell, effectively prevent the leakage of collected gas, ensure sampling accuracy, without worker's repeated manual opening or closing operation, improve sampling efficiency.

Description

Technical Field

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

[0002] High-efficiency gas sampling devices are specialized equipment used to safely, accurately, and efficiently collect gas samples. They are widely used in petroleum, chemical, environmental protection, and scientific research fields to ensure the airtightness of the gas sampling process and the representativeness of the samples.

[0003] After sampling is completed, traditional sampling devices require staff to manually remove the sampling canister from the device and then seal it individually. For example, in environmental monitoring, gas sampling may need to be conducted at multiple locations. After each sampling, the sampling canisters must be manually removed and sealed one by one, which greatly limits the progress of the work.

[0004] In some work scenarios requiring batch sampling, existing technologies require staff to repeat the aforementioned manual operations, which is labor-intensive, inefficient, and leads to poor sealing, resulting in sample gas leakage and affecting the reliability of test results. Therefore, a high-efficiency sampling device for gas detection is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-efficiency sampling device for gas detection, which aims to improve the problem of low sampling efficiency in the prior art where batch sampling requires repeated manual opening or closing operations.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency sampling device for gas detection, comprising a bottom shell, a support plate in contact with the inner side of the bottom shell, a handle fixedly connected to the top of the support plate, a sampling canister fixedly connected to the top of the support plate, the bottom of the sampling canister movably penetrating through the top of the support plate, an air inlet hole opened at the bottom of the bottom shell, an air intake fan fixedly installed on the inner wall of the air inlet hole, and a sealing sampling component provided on the support plate;

[0007] The sealed sampling assembly includes a fixed ring, the top surface of which is fixedly connected to the bottom of the sampling container. A groove is formed at the bottom of the fixed ring, and a sliding plate is slidably connected within the groove. A spring B is fixedly connected to one side of the sliding plate, and the end of spring B is fixedly connected to the inner wall of the groove. A sealing gasket is fixedly connected to the other side of the sliding plate, and the sliding plates contact each other through the sealing gasket. A limit rod is fixedly connected to the bottom of the sliding plate. A rotating ring contacts the bottom of the fixed ring, and an arc-shaped sliding hole is formed at the bottom of the rotating ring. A tooth A is fixedly connected to the inner side of the bottom shell, and a tooth B is fixedly connected to the outer side of the rotating ring. The sides of tooth A and tooth B mesh with each other. An ejection assembly is provided on the inner side of the bottom shell, and a limit assembly is provided on the outer wall of the bottom shell.

[0008] As a further description of the above technical solution: the limiting component includes a limiting sleeve, which is fixedly connected to the outside of the bottom shell. A rod is movably connected to the end of the limiting sleeve. A slot is provided on the outer wall of the bearing plate. The end of the rod movably passes through the outside of the bottom shell and abuts against the inner wall of the slot.

[0009] As a further description of the above technical solution: the ejection assembly includes a limiting plate, the side of which is fixedly connected to the outer wall of the sampling tank, and an arc-shaped extrusion block is fixedly connected to the bottom inner wall of the bottom shell.

[0010] As a further description of the above technical solution: a limiting ring is fixedly sleeved on the surface of the insertion rod, and a spring A is sleeved on the surface of the insertion rod. One end of the spring A is fixedly connected to the end face of the limiting ring, and the other end of the spring A is fixedly connected to the inner wall of the limiting sleeve.

[0011] As a further description of the above technical solution: the limiting rod is T-shaped, the bottom end of the limiting rod passes through the inner wall of the arc-shaped sliding hole, and the surface of the limiting rod is slidably connected to the inner wall of the arc-shaped sliding hole.

[0012] As a further description of the above technical solution: a slot is provided on the inner side of the bottom shell, and the bearing plate is in close contact with the slot provided on the inner side of the bottom shell.

[0013] As a further description of the above technical solution: the bottom of the limiting plate is provided with an inclined surface, and the arc-shaped extrusion block is configured to cooperate with the bottom inclined surface of the limiting plate.

[0014] As a further description of the above technical solution: a button is fixedly connected to the end of the insertion rod.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the rotating ring is driven to rotate by the meshing transmission of tooth A and tooth B. The arc-shaped sliding hole at the bottom of the rotating ring interacts with the limiting rod, so that the opening and closing plate moves precisely along the sliding groove. Every time the bottom shell rotates 90 degrees, it automatically completes the sealing process of a sampling can, effectively preventing the leakage of the collected gas, ensuring the accuracy of sampling, eliminating the need for workers to repeatedly open or close the sampling tank manually, and improving sampling efficiency.

[0017] 2. In this utility model, the insertion rod cooperates with the slot on the outer wall of the bearing plate to firmly lock the bottom shell and the bearing plate, effectively preventing relative displacement or rotation between the two during the sampling process, ensuring the stability of the device operation, and avoiding the impact of loose parts on the sampling effect.

[0018] 3. In this utility model, after the sampling can has completed gas collection and sealing, the rotation of the bottom shell causes the arc-shaped extrusion block to interact with the inclined surface at the bottom of the limiting plate, lifting the sampling can for easy handling by the operator, greatly improving the convenience of operation and reducing the time and effort costs of manual operation. Attached Figure Description

[0019] Figure 1 This is a front view of a high-efficiency sampling device for gas detection proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the bottom shell of a high-efficiency sampling device for gas detection proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the bottom structure of the support plate of a high-efficiency sampling device for gas detection proposed in this utility model;

[0022] Figure 4 This is a cross-sectional schematic diagram of the bottom shell, bearing plate, and limiting sleeve of a high-efficiency sampling device for gas detection proposed in this utility model;

[0023] Figure 5 This is a schematic diagram of the structural separation of the sealed sampling component of a high-efficiency sampling device for gas detection proposed in this utility model;

[0024] Figure 6 This is a schematic diagram of the assembly structure of the sealed sampling component of a high-efficiency sampling device for gas detection proposed in this utility model.

[0025] Legend:

[0026] 1. Bottom shell; 2. Support plate; 3. Sampling tank; 4. Limiting plate; 5. Limiting sleeve; 6. Tooth A; 7. Arc-shaped extrusion block; 8. Air inlet; 9. Air intake fan; 11. Insert rod; 12. Limiting ring; 13. Spring; 14. Rotary ring; 15. Fixing ring; 16. Slide groove; 17. Opening and closing plate; 18. Limiting rod; 19. Spring B. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a high-efficiency sampling device for gas detection, comprising a bottom shell 1, a support plate 2 in contact with the inner side of the bottom shell 1, the support plate 2 for supporting a sampling container 3, and cooperating with the bottom shell 1 to construct a gas flow and sampling space inside the device. A handle is fixedly connected to the top of the support plate 2, allowing for easy rotation of the support plate 2. A slot is provided on the inner side of the bottom shell 1, and the support plate 2 fits snugly into the slot, achieving stable installation of the support plate 2 within the bottom shell 1. A sampling device is fixedly connected to the top of the support plate 2. The bottom of the sampling canister 3 extends through the top of the support plate 2, allowing the bottom of the sampling canister 3 to directly contact the gas inside the bottom shell 1, providing a channel for the gas to enter the sampling canister 3. The bottom of the bottom shell 1 is provided with an air inlet 8, which is the entrance for outside air to enter the interior of the bottom shell 1, ensuring that the gas to be sampled can enter the device. An air intake fan 9 is fixedly installed on the inner wall of the air inlet 8. The air intake fan 9 generates suction by running, causing outside gas to enter the interior of the bottom shell 1 through the air inlet 8, providing power for gas sampling. A sealing sampling component is provided on the support plate 2.

[0029] Reference Figure 3 , Figure 5 , Figure 6The sealed sampling assembly includes a fixing ring 15, which serves to connect and position the sampling container 3, securely connecting it to other components of the sealed sampling assembly. The top surface of the fixing ring 15 is fixedly connected to the bottom end of the sampling container 3, further ensuring the stability of the connection between the sampling container 3 and the fixing ring 15. A groove 16 is provided at the bottom end of the fixing ring 15, providing a track for the sliding of the opening and closing plate 17, allowing it to move in a predetermined direction. The opening and closing plate 17 is slidably connected within the groove 16, and a spring B1 is fixedly connected to one side of the opening and closing plate 17. 9. The end of spring B19 is fixedly connected to the inner wall of slide groove 16. A sealing gasket is fixedly connected to the other side of the opening and closing plate 17. The opening and closing plates 17 contact each other through the sealing gasket to improve the sealing performance of sampling tube 3. The opening and closing plate 17 slides in slide groove 16 to open and close the bottom opening of sampling tank 3, thereby controlling the entry and exit of gas. A limit rod 18 is fixedly connected to the bottom of the opening and closing plate 17. The limit rod 18 moves synchronously with the opening and closing plate 17 and precisely controls the movement trajectory of the opening and closing plate 17 by cooperating with the arc-shaped sliding hole on the rotating ring 14.

[0030] Reference Figure 3 , Figure 5 , Figure 6 The bottom end of the fixed ring 15 contacts the rotating ring 14. During rotation, the rotating ring 14 interacts with the limiting rod 18 through the arc-shaped sliding hole at its bottom, driving the opening and closing plate 17 to move. The bottom of the rotating ring 14 has an arc-shaped sliding hole, the shape of which determines the movement path of the limiting rod 18, thereby controlling the opening and closing action of the opening and closing plate 17. The inner side of the bottom shell 1 is fixedly connected to a tooth A6, and the outer side of the rotating ring 14 is fixedly connected to a tooth B. The side of the tooth A6 and the side of the tooth B mesh with each other. The limiting rod 18 is T-shaped. The structure prevents the limiting rod 18 from disengaging from the arc-shaped sliding hole, ensuring that it always maintains an effective connection with the arc-shaped sliding hole. The bottom end of the limiting rod 18 passes through the inner wall of the arc-shaped sliding hole, and the surface of the limiting rod 18 is slidably connected to the inner wall of the arc-shaped sliding hole. An ejection assembly is provided on the inner side of the bottom shell 1, which is used to lift the sampling tank 3 after it has completed gas collection and sealing, making it convenient for operators to pick up. A limiting assembly is provided on the outer wall of the bottom shell 1. The limiting assembly is used to limit the relative position between the bottom shell 1 and the support plate 2, ensuring the stability of each component of the device during the sampling process.

[0031] Reference Figure 1 , Figure 2 , Figure 4The limiting assembly includes a limiting sleeve 5, which provides an installation and guiding structure for the insertion rod 11, enabling it to move in a defined direction. The limiting sleeve 5 is fixedly connected to the outside of the bottom shell 1, and the insertion rod 11 is movably connected to the end of the limiting sleeve 5. The insertion rod 11 locks and unlocks the carrier plate 2 by moving within the limiting sleeve 5. A slot is provided on the outer wall of the carrier plate 2, and the end of the insertion rod 11 movably penetrates the outside of the bottom shell 1 and abuts against the inner wall of the slot. This abutment method restricts the relative rotation and displacement between the bottom shell 1 and the carrier plate 2. A limiting ring 12 is fixedly sleeved on the surface. The limiting ring 12 is used to limit the position of the spring A13 and provide the action point for the spring A13. The spring A13 is sleeved on the surface of the insertion rod 11. One end of the spring A13 is fixedly connected to the end face of the limiting ring 12, and the other end of the spring A13 is fixedly connected to the inner wall of the limiting sleeve 5. The spring A13 generates elastic potential energy after being compressed. When the external force disappears, the elastic potential energy is used to push the insertion rod 11 to reset. A button is fixedly connected to the end of the insertion rod 11. The button makes it convenient for the operator to apply external force and control the movement of the insertion rod 11.

[0032] Reference Figure 2 The ejection assembly includes a limiting plate 4, which is fixedly connected to the sampling canister 3 and moves with it. It also cooperates with the arc-shaped extrusion block 7 to eject the sampling canister 3. The side of the limiting plate 4 is fixedly connected to the outer wall of the sampling canister 3, ensuring a stable connection between the limiting plate 4 and the sampling canister 3, allowing them to move in tandem. The bottom inner wall of the bottom shell 1 is fixedly connected to the arc-shaped extrusion block 7. During the rotation of the bottom shell 1, the arc-shaped extrusion block 7 interacts with the inclined surface at the bottom of the limiting plate 4, generating an upward force that lifts the sampling canister 3. The bottom of the limiting plate 4 has an inclined surface. During rotation, the arc-shaped extrusion block 7 can convert horizontal movement into vertical lifting movement of the sampling canister 3. The arc-shaped extrusion block 7 and the inclined surface at the bottom of the limiting plate 4 cooperate to achieve linkage between the rotation of the bottom shell 1 and the ejection action of the sampling canister 3.

[0033] Working principle: The sampling canister 3 and the limiting plate 4 are inserted into the inner side of the bottom shell 1 from the support plate 2. Then, the button is pulled, which drives the insertion rod 11 to move inside the limiting sleeve 5. The insertion rod 11 squeezes the spring A13 through the limiting plate, and the insertion rod 11 separates from the slot. Then, the support plate 2 is rotated to 90 degrees, and then the button is released. Under the lateral elastic potential energy of the spring A13, the insertion rod 11 is driven to press against the slot. During the rotation of the support plate 2, the teeth A6 and teeth B set on the inner wall of the bottom shell 1 mesh. The teeth A6 drive the rotating ring 14 to rotate. The rotating ring 14 squeezes the top limiting rod 18 through the arc-shaped sliding hole. The limiting rod 18 slides in the arc-shaped sliding hole. At this time, the opening and closing plate 17 moves closer to each other with the limiting rod 18. The opening and closing plate 17 moves further apart to achieve the opening effect of the bottom opening of the sampling canister 3. When the bottom opening of the sampling canister 3 is fully opened, it overlaps with the position of the air inlet 8. Start the intake fan 9. Under the action of the intake fan 9, the air below the bearing plate 2 enters the interior of the bottom shell 1 through the air inlet 8. Since the bottom opening of the sampling can 3 corresponds to the position of the air inlet 8, the gas enters the interior of the sampling can 3. Then, continue to rotate the bearing plate 2 to 90 degrees. When the tooth B on the rotating ring 14 disengages from the tooth A6, the elastic potential energy of the spring B19 drives the opening and closing plate 17 to rebound. The two opening and closing plates 17 move closer to each other and improve their sealing performance through the sealing gasket. After the bearing plate 2 continues to rotate, it cooperates with the arc-shaped extrusion block 7 to press the inclined surface at the bottom of the limiting plate 4. Every time the bottom shell 1 rotates 90 degrees, one sampling can 3 collects gas. At the same time, the sampling can 3 is sealed during the rotation. After sealing, the arc-shaped extrusion block 7 presses the inclined surface at the bottom of the limiting plate 4, which can lift up the sampling cans 3 that have collected gas in sequence for easy handling.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency sampling device for gas detection, comprising a bottom shell (1), characterized in that: The inner side of the bottom shell (1) is in contact with the support plate (2), the top of the support plate (2) is fixedly connected to a handle, the top of the support plate (2) is fixedly connected to a sampling tank (3), the bottom of the sampling tank (3) moves through the top of the support plate (2), the bottom of the bottom shell (1) is provided with an air inlet (8), the inner wall of the air inlet (8) is fixedly installed with an air intake fan (9), and a sealing sampling component is provided on the support plate (2); The sealed sampling assembly includes a fixing ring (15), the top surface of which is fixedly connected to the bottom end of the sampling container (3). A groove (16) is provided at the bottom end of the fixing ring (15), and a sliding plate (17) is slidably connected within the groove (16). A spring B (19) is fixedly connected to one side of the sliding plate (17), and the end of the spring B (19) is fixedly connected to the inner wall of the groove (16). A sealing gasket is fixedly connected to the other side of the sliding plate (17). The sliding plate (17) is connected via... The sealing gaskets are in contact with each other. The bottom of the opening and closing plate (17) is fixedly connected to the limiting rod (18). The bottom end of the fixing ring (15) is in contact with the rotating ring (14). The bottom of the rotating ring (14) is provided with an arc-shaped sliding hole. The inner side of the bottom shell (1) is fixedly connected to the tooth A (6). The outer side of the rotating ring (14) is fixedly connected to the tooth B. The side of the tooth A (6) and the side of the tooth B mesh with each other. The inner side of the bottom shell (1) is provided with an ejection assembly. The outer wall of the bottom shell (1) is provided with a limiting assembly.

2. The high-efficiency sampling device for gas detection according to claim 1, characterized in that: The limiting component includes a limiting sleeve (5), which is fixedly connected to the outside of the bottom shell (1). The end of the limiting sleeve (5) is movably connected to a plug rod (11). The outer wall of the bearing plate (2) is provided with a slot. The end of the plug rod (11) movably passes through the outside of the bottom shell (1) and abuts against the inner wall of the slot.

3. The high-efficiency sampling device for gas detection according to claim 1, characterized in that: The ejection assembly includes a limiting plate (4), the side of which is fixedly connected to the outer wall of the sampling tank (3), and an arc-shaped extrusion block (7) is fixedly connected to the bottom inner wall of the bottom shell (1).

4. The high-efficiency sampling device for gas detection according to claim 2, characterized in that: A limiting ring (12) is fixedly sleeved on the surface of the insertion rod (11), and a spring A (13) is sleeved on the surface of the insertion rod (11). One end of the spring A (13) is fixedly connected to the end face of the limiting ring (12), and the other end of the spring A (13) is fixedly connected to the inner wall of the limiting sleeve (5).

5. The high-efficiency sampling device for gas detection according to claim 1, characterized in that: The limiting rod (18) is T-shaped, and the bottom end of the limiting rod (18) passes through the inner wall of the arc-shaped sliding hole. The surface of the limiting rod (18) is slidably connected to the inner wall of the arc-shaped sliding hole.

6. The high-efficiency sampling device for gas detection according to claim 1, characterized in that: The inner side of the bottom shell (1) is provided with a slot, and the bearing plate (2) is in contact with the slot provided on the inner side of the bottom shell (1).

7. The high-efficiency sampling device for gas detection according to claim 3, characterized in that: The bottom of the limiting plate (4) is provided with an inclined surface, and the arc-shaped extrusion block (7) is configured to cooperate with the bottom inclined surface of the limiting plate (4).

8. The high-efficiency sampling device for gas detection according to claim 2, characterized in that: A button is fixedly connected to the end of the insertion rod (11).

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