Safe sampling device for special gas

Abstract

The utility model relates to the technical field of special gas sampling, and aims to provide a special gas safety sampling device which comprises a storage box, a fixing plate is slidably connected in the storage box, a rotating shaft is fixedly connected to the center of the top of the fixing plate, the other end of the rotating shaft is rotatably connected with a placing plate, a limiting hole is formed in the top of the fixing plate, and the fixing plate is fixedly connected with the placing plate. A connecting plate is fixedly connected to the outer wall of the rotating shaft, a limiting rod is connected to the connecting plate in a sliding and penetrating mode, a pulling plate is fixedly connected to one end of the limiting rod, and the other end of the limiting rod is inserted into the limiting hole. According to the utility model, a protection effect is achieved, the device is prevented from being influenced by external dust, the service life is prolonged, the measurement precision is improved, the safety is higher, meanwhile, the direction of the sampling head is convenient to adjust, and the sampling area is convenient to adjust.

Description

Technical Field

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

[0002] Specialty gases are diverse and can generally be categorized into electronic gases, standard gases, environmental gases, medical gases, welding gases, and sterilizing gases, among others. They are widely used in electronics, power, petrochemicals, mining, steel, non-ferrous metal smelting, thermal engineering, biochemistry, environmental monitoring, medical research and diagnostics, and food preservation. Existing specialty gas sampling devices lack adequate protection during use, making them susceptible to external dust contamination, which reduces their lifespan and measurement accuracy, resulting in lower safety and certain limitations. Utility Model Content

[0003] The purpose of this invention is to provide a special gas safety sampling device to solve the problems mentioned in the background art and facilitate its widespread application.

[0004] To achieve the aforementioned objectives, the technical solution adopted by this utility model is as follows:

[0005] A special gas safety sampling device includes a storage box, a fixed plate slidably connected inside the storage box, a rotating shaft fixedly connected to the top center of the fixed plate, a placement plate rotatably connected to the other end of the rotating shaft, a limit hole formed on the top of the fixed plate, a connecting plate fixedly connected to the outer wall of the rotating shaft, a limit rod slidably connected through the connecting plate, a pull plate fixedly connected to one end of the limit rod, the other end of the limit rod inserted into the limit hole, a baffle fixedly sleeved on the outside of the limit rod, a spring sleeved on the outside of the limit rod, one end of the spring fixedly connected to the baffle, the other end of the spring fixedly connected to the connecting plate, a sampling bottle fixedly connected to the top of the placement plate, a vacuum pump fixedly connected to the top of the sampling bottle, a vacuum pipe fixedly connected to the top of the vacuum pump, a sampling head fixedly connected to the other end of the vacuum pipe, and a fixed... An air inlet pipe is fixedly connected to the sampling bottle, with the other end of the air inlet pipe passing through the sampling bottle and extending into the interior of the sampling bottle. An air outlet pipe is fixedly connected to the side wall of the sampling bottle, and a sealing cap is threaded onto the outer surface of the air outlet pipe. A fixed rod is fixedly connected to the center of the inner wall of the bottom of the storage box. A drive cavity is opened inside the fixed rod. A drive motor is fixedly connected to the side wall of the fixed rod. The output end of the drive motor passes through the fixed rod and is fixedly connected to a drive shaft. The other end of the drive shaft is rotatably connected to the inner wall of the drive cavity. A driving bevel gear is fixedly sleeved on the outside of the drive shaft. A driven bevel gear is meshed on the driving bevel gear. A threaded rod is fixedly connected to the top of the driven bevel gear. A moving rod is slidably connected inside the fixed rod. The other end of the threaded rod extends into the moving rod and is threadedly connected to the moving rod. The other end of the moving rod is fixedly connected to the bottom of the fixed plate.

[0006] Furthermore, the top rear side of the storage box is connected to a lid via a hinge.

[0007] Furthermore, telescopic rods are fixedly connected to the four corners of the inner wall at the bottom of the storage box, and the telescopic ends of the four telescopic rods are fixedly connected to the bottom of the fixing plate.

[0008] Furthermore, the number of limiting holes is multiple, and they are distributed in a circumferential array on the fixing plate.

[0009] Furthermore, sliders are symmetrically connected to both sides of the fixed plate, and grooves are symmetrically opened on both sides of the inner wall of the storage box. The end of the slider away from the fixed plate extends into the interior of the groove and is slidably connected to the groove.

[0010] The beneficial effects of this utility model are as follows:

[0011] This utility model discloses a special gas safety sampling device. By starting a drive motor, the drive shaft rotates a driving bevel gear, which in turn rotates a meshing driven bevel gear, which in turn rotates a threaded rod, which in turn moves a moving rod. This allows for height adjustment of the placement plate, and the sampling bottle, vacuum pump, and other components are collected in a storage box for protection, preventing them from being affected by external dust, thus improving service life and measurement accuracy. The device offers high safety. By pulling the pull plate, the limiting rod is moved out of the limiting hole, releasing the fixation of the placement plate and facilitating adjustment of the sampling head's direction and sampling area. By releasing the pull plate, the limiting rod is inserted into the limiting hole under the spring force, fixing the position of the placement plate. The device is easy to operate and provides good fixation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a special gas safety sampling device according to the present invention;

[0013] Figure 2 This is a partial structural diagram of a special gas safety sampling device according to the present invention;

[0014] Figure 3 This is a cross-sectional view of the fixing rod of a special gas safety sampling device according to this utility model;

[0015] Figure 4 This is an enlarged view of section A of a special gas safety sampling device according to this utility model;

[0016] Reference table for attached figures:

[0017] 1. Storage box; 2. Fixing plate; 3. Rotating shaft; 4. Placement plate; 5. Limiting hole; 6. Connecting plate; 7. Limiting rod; 8. Pull plate; 9. Baffle; 10. Spring; 11. Sampling bottle; 12. Air pump; 13. Air extraction pipe; 14. Sampling head; 15. Air inlet pipe; 16. Air outlet pipe; 17. Sealing cap; 18. Fixing rod; 19. Drive chamber; 20. Drive motor; 21. Drive shaft; 22. Driving bevel gear; 23. Driven bevel gear; 24. Threaded rod; 25. Moving rod; 26. Box cover; 27. Telescopic rod; 28. Sliding block; 29. ​​Slide groove. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0019] To make the content of this utility model easier to understand, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Identical components are indicated by the same reference numerals.

[0020] Depend on Figures 1 to 4 As shown, a special gas safety sampling device includes a storage box 1, a fixed plate 2 slidably connected inside the storage box 1, a rotating shaft 3 fixedly connected to the top center of the fixed plate 2, a placement plate 4 rotatably connected to the other end of the rotating shaft 3, a limit hole 5 opened on the top of the fixed plate 2, a connecting plate 6 fixedly connected to the outer wall of the rotating shaft 3, a limit rod 7 slidably connected through the connecting plate 6, a pull plate 8 fixedly connected to one end of the limit rod 7, the other end of the limit rod 7 inserted into the limit hole 5, and a baffle 9 fixedly sleeved on the outside of the limit rod 7. A spring 10 is sleeved on the outside of the positioning rod 7. One end of the spring 10 is fixedly connected to the baffle 9, and the other end of the spring 10 is fixedly connected to the connecting plate 6. By pulling the pull plate 8, the positioning rod 7 is moved out of the positioning hole 5, thereby releasing the fixation of the placement plate 4, which facilitates the adjustment of the direction of the sampling head 14 and the adjustment of the sampling area. By releasing the pull plate 8, under the elastic force of the spring 10, the positioning rod 7 is inserted into the positioning hole 5, thereby fixing the position of the placement plate 4. The operation is convenient and the fixing effect is good.

[0021] A sampling bottle 11 is fixedly connected to the top of the placement plate 4. A vacuum pump 12 is fixedly connected to the top of the sampling bottle 11. A vacuum pipe 13 is fixedly connected to the top of the vacuum pump 12. A sampling head 14 is fixedly connected to the other end of the vacuum pipe 13. An air inlet pipe 15 is fixedly connected to one side of the vacuum pump 12. The other end of the air inlet pipe 15 passes through the sampling bottle 11 and extends into the interior of the sampling bottle 11. An air outlet pipe 16 is fixedly connected to the side wall of the sampling bottle 11. A sealing cap 17 is threadedly connected to the outer surface of the air outlet pipe 16. By starting the vacuum pump 12, the sampling work is carried out through the sampling head 14. The collected gas enters the sampling bottle 11 through the air inlet pipe 15 to complete the sampling work. External equipment can be connected for detection through the air outlet pipe 16.

[0022] A fixed rod 18 is fixedly connected to the center of the inner wall of the bottom of the storage box 1. A drive cavity 19 is opened inside the fixed rod 18. A drive motor 20 is fixedly connected to the side wall of the fixed rod 18. The output end of the drive motor 20 passes through the fixed rod 18 and is fixedly connected to a drive shaft 21. The other end of the drive shaft 21 is rotatably connected to the inner wall of the drive cavity 19. A driving bevel gear 22 is fixedly sleeved on the outside of the drive shaft 21. A driven bevel gear 23 is meshed on the driving bevel gear 22. A threaded rod 24 is fixedly connected to the top of the driven bevel gear 23. A moving rod 25 is slidably connected inside the fixed rod 18. The threaded rod 24 is also... One end extends into the movable rod 25 and is threadedly connected to the movable rod 25. The other end of the movable rod 25 is fixedly connected to the bottom of the fixed plate 2. By starting the drive motor 20, the drive shaft 21 drives the active bevel gear 22 to rotate, which in turn drives the driven bevel gear 23 that meshes with it to rotate, which in turn drives the threaded rod 24 to rotate, which in turn drives the movable rod 25 to move, thereby realizing the height adjustment of the placement plate 4. This allows the sampling bottle 11, the vacuum pump 12, etc. to be recycled into the storage box 1, achieving a protective function, avoiding the influence of external dust, improving service life and measurement accuracy, and ensuring high safety.

[0023] The top rear side of the storage box 1 is connected to a lid 26 via a hinge, which serves to seal the box.

[0024] Telescopic rods 27 are fixedly connected to the four corners of the inner wall at the bottom of the storage box 1. The telescopic ends of the four telescopic rods 27 are fixedly connected to the bottom of the fixed plate 2. By setting the telescopic rods 27, the stability of the fixed plate 2 when it moves up and down is achieved.

[0025] There are multiple limiting holes 5, which are arranged in a circular array on the fixing plate 2. By setting multiple limiting holes 5, the flexibility of angle adjustment is improved.

[0026] The fixed plate 2 is symmetrically connected to the two sides of the fixed plate 2, and the inner wall of the storage box 1 is symmetrically provided with the sliding grooves 29. The end of the slider 28 away from the fixed plate 2 extends into the interior of the sliding groove 29 and is slidably connected to the sliding groove 29. The sliding connection between the slider 28 and the sliding groove 29 ensures the stability of the movement of the fixed plate 2.

[0027] The above are merely preferred embodiments of this utility model patent and are not intended to limit this utility model patent. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model patent should be included within the protection scope of this utility model patent.

Claims

1. A special gas safety sampling device, comprising a storage box (1), characterized in that, A fixed plate (2) is slidably connected inside the storage box (1). A rotating shaft (3) is fixedly connected to the center of the top of the fixed plate (2). A placement plate (4) is rotatably connected to the other end of the rotating shaft (3). A limiting hole (5) is opened on the top of the fixed plate (2). A connecting plate (6) is fixedly connected to the outer wall of the rotating shaft (3). A limiting rod (7) is slidably connected through the connecting plate (6). A pull plate (8) is fixedly connected to one end of the limiting rod (7). The other end of the limiting rod (7) is inserted into the limiting hole (5). A baffle is fixedly sleeved on the outside of the limiting rod (7). 9) A spring (10) is sleeved on the outside of the limiting rod (7). One end of the spring (10) is fixedly connected to the baffle (9), and the other end of the spring (10) is fixedly connected to the connecting plate (6). A sampling bottle (11) is fixedly connected to the top of the placement plate (4). A vacuum pump (12) is fixedly connected to the top of the sampling bottle (11). A vacuum pipe (13) is fixedly connected to the top of the vacuum pump (12). A sampling head (14) is fixedly connected to the other end of the vacuum pipe (13). An air inlet pipe (15) is fixedly connected to one side of the vacuum pump (12). (15) The other end passes through the sampling bottle (11) and extends into the interior of the sampling bottle (11). The side wall of the sampling bottle (11) is fixedly connected to an air outlet pipe (16). The outer surface of the air outlet pipe (16) is threaded with a sealing cap (17). A fixing rod (18) is fixedly connected to the center of the inner wall of the bottom of the storage box (1). A driving cavity (19) is opened inside the fixing rod (18). A driving motor (20) is fixedly connected to the side wall of the fixing rod (18). The output end of the driving motor (20) passes through the fixing rod (18) and is fixedly connected to a driving shaft (21). The other end of the drive shaft (21) is rotatably connected to the inner wall of the drive cavity (19). A drive bevel gear (22) is fixedly sleeved on the outside of the drive shaft (21). A driven bevel gear (23) is meshed on the drive bevel gear (22). A threaded rod (24) is fixedly connected to the top of the driven bevel gear (23). A moving rod (25) is slidably connected inside the fixed rod (18). The other end of the threaded rod (24) extends into the moving rod (25) and is threadedly connected to the moving rod (25). The other end of the moving rod (25) is fixedly connected to the bottom of the fixed plate (2).

2. The special gas safety sampling device according to claim 1, characterized in that, The storage box (1) has a lid (26) connected to the top rear side via a hinge.

3. A special gas safety sampling device according to claim 1, characterized in that, The storage box (1) has four telescopic rods (27) fixedly connected to the four corners of the inner wall at the bottom. The telescopic ends of the four telescopic rods (27) are fixedly connected to the bottom of the fixing plate (2).

4. A special gas safety sampling device according to claim 1, characterized in that, The number of limiting holes (5) is multiple, and they are distributed in a circular array on the fixing plate (2).

5. A special gas safety sampling device according to claim 1, characterized in that, The fixed plate (2) is symmetrically connected with sliders (28) on both sides. The inner wall of the storage box (1) is symmetrically provided with grooves (29). The end of the slider (28) away from the fixed plate (2) extends into the interior of the groove (29) and is slidably connected to the groove (29).

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