Sampling device for gas detection

Abstract

The utility model relates to the technical field of gas sampling, and discloses a sampling device for gas detection, which comprises a sampling and collecting box, a stabilizing plate is fixedly mounted at the top of the sampling and collecting box, a lifting frame is fixedly mounted at the top of the stabilizing plate, and a lifting mechanism is arranged on the inner side of the lifting frame. And a movable bearing plate is fixedly mounted on the inner side of the lifting mechanism. The handle is pulled upwards through external force, the handle can pull the filter screen to move upwards together, then dust on the outer surface of the filter screen can be compacted through the pressing wheels on the two sides, then the handle is pulled upwards, the dust on the outer surface of the filter screen is scraped away through the rotary scraping plates on the two sides of the fixing plate, and then workers can clean the filter screen conveniently. Compared with a traditional device, a worker can clean the filter screen in time, the good filtering performance of the filter screen is kept, and therefore the overall service life of the sampling device is prolonged, and the sampling device can accurately obtain a target gas sample.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas sampling technical field more specifically, the utility model relates to a sampling device for gas detection. BACKGROUND

[0002] In the current rapid development of industry, various production activities will produce a large amount of gas emission, including chemical industry, petroleum, metallurgy and other industries, the gas composition is complex, part contains toxic, harmful and flammable and explosive substances, potential threat to the environment and human health, at the same time, in outdoor air quality detection, mine gas monitoring, etc. Many fields, accurate understanding of gas composition and content is needed, and the sampling device for gas detection emerges as the times require, which is the key tool for obtaining gas samples, providing basic data for subsequent component analysis, concentration determination and other detection links.

[0003] The existing sampling device for gas detection is prone to cause a large amount of impurities to adhere to the filter screen after long time use, which affects the sampling effect, and the filter screen is inconvenient to clean and disassemble, thereby reducing the overall service life of the sampling device, and the sampling device cannot accurately obtain the target gas sample, which cannot provide reliable data for subsequent detection, so it needs to be improved and optimized. UTILITY MODEL CONTENT

[0004] In order to overcome the defects of the prior art, the utility model provides a sampling device for gas detection, which has the advantages of convenient cleaning and disassembly.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a sampling device for gas detection, comprising a sampling collection box, a stable plate is fixedly installed on the top of the sampling collection box, a lifting frame is fixedly installed on the top of the stable plate, a lifting mechanism is formed in the inner side of the lifting frame, a movable bearing plate is fixedly installed in the inner side of the lifting mechanism, a sampling gas collection box is fixedly installed on the top of the movable bearing plate, a gas pump is fixedly connected to the right side of the sampling gas collection box, fixed plates are fixedly installed on the top left side of the sampling gas collection box, rotating scrapers are rotatably installed between the two fixed plates, a rectangular groove is formed in the outer surface of the sampling gas collection box and located between the two rotating scrapers, a filter screen is slidably installed in the inner side of the sampling gas collection box and penetrates out of the sampling gas collection box, a handle is fixedly installed on the top of the filter screen, pressure rollers are rotatably installed on the left and right sides of the inner side of the sampling gas collection box and located on the left and right sides of the filter screen, a transmission hose is fixedly connected to the bottom side of the sampling gas collection box and extends through the movable bearing plate to the inner side of the sampling collection box in communication therewith, and stable mechanisms are fixedly installed on the left and right sides of the sampling collection box.

[0006] As a preferred embodiment of this utility model, the stabilizing mechanism includes fixed brackets fixedly installed on the left and right sides of the sampling collection box. A rotating shaft is rotatably installed on the inner side of the fixed bracket. A C-shaped bracket is fixedly sleeved on the outer surface of the rotating shaft. Telescopic rods are slidably installed inside the extension rods on both sides of the C-shaped bracket. A connecting rod is fixedly connected inside the telescopic rod and passes through the telescopic rods on both sides. Fixed blocks are fixedly installed at both ends of the telescopic rod. A third lead screw is threaded inside the fixed block. A rotating block is fixedly installed at one end of the third lead screw. A conical protrusion is fixedly installed at the other end of the third lead screw. A second lead screw is fixedly installed at one end of the rotating shaft and extends out of the fixed bracket and is threadedly connected to the fixed bracket.

[0007] As a preferred embodiment of this utility model, the lifting mechanism includes a lifting frame with rectangular sliding grooves on both the front and rear sides. A first slider is slidably installed inside one side of the rectangular sliding groove. A first lead screw is threaded into the inside of the first slider, and both ends of the first lead screw pass through the inside of the first slider. A motor is fixedly installed inside the lifting frame, and the output shaft of the motor extends to the inside of the rectangular sliding groove and is fixedly connected to the first lead screw. The end of the first lead screw is rotatably connected to the inside of one side of the rectangular sliding groove. A second slider is slidably installed inside the other side of the rectangular sliding groove. A movable support plate is fixedly installed between the second slider and the first slider.

[0008] As a preferred embodiment of this utility model, a flexible protective plate is fixedly installed on both sides of the inner side of the rectangular groove, and the flexible protective plate is in an inwardly curved arc shape and does not contact the filter screen.

[0009] As a preferred embodiment of this utility model, a handle is fixedly installed on the top of the filter screen, and the handle is C-shaped.

[0010] As a preferred embodiment of this utility model, the bottom of the sampling collection box is fixedly equipped with casters, and the casters are located around the bottom of the sampling collection box. A handrail is fixedly installed on the right side of the sampling collection box.

[0011] As a preferred embodiment of this utility model, a second lead screw is fixedly installed at one end of the rotating shaft, and the second lead screw extends out of the fixed bracket and is threadedly connected to the fixed bracket.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model allows the filter screen to move upward by pulling the handle upward with external force. The dust on the outer surface of the filter screen is then compacted by the pressure rollers on both sides. Pulling it upward again allows the rotating scrapers on both sides of the fixed plate to scrape off the dust on the outer surface of the filter screen, making it convenient for staff to clean. Compared with traditional devices, this device allows staff to clean the filter screen in a timely manner, maintain its good filtration performance, and extend the overall service life of the sampling device. It enables the sampling device to accurately obtain target gas samples, providing reliable data for subsequent testing and reducing the time and labor costs required for maintenance.

[0014] 2. This utility model, by rotating the second lead screw, will cause the rotating shaft to start rotating. When the rotating shaft starts rotating, it will cause the C-shaped bracket to start adjusting its angle. When the C-shaped bracket is adjusted, it will cause the telescopic rods inside on both sides to move to the adjusted position. When the telescopic rods move to the adjusted position, they will cause the connecting rod to move together, and then cause the fixing blocks on both sides to move to the appropriate position. At this time, rotating the rotating block will cause the third lead screw to start rotating. When the third lead screw rotates, it will cause the conical protrusion to drill into and fix to the ground on the bottom side. Compared with the traditional device, this device can be fixed in different positions and angles according to the actual situation, thereby enhancing its applicability. At the same time, it can avoid external interference, make the sampling device work stably, ensure the reliability of the test data, and thus improve stability. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional appearance structural diagram of the present utility model;

[0016] Figure 2 This is a schematic diagram of the sampling and gas collection box structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the lifting frame structure of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This is a schematic diagram of the filter structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the movable support plate structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the C-shaped bracket structure of this utility model.

[0022] In the diagram: 1. Sampling collection box; 2. Stabilizing plate; 3. Lifting frame; 4. Rectangular chute; 5. First slider; 6. Second slider; 7. First lead screw; 8. Motor; 9. Moving support plate; 10. Air pump; 11. Sampling gas collection box; 12. Fixing plate; 13. Rectangular groove; 14. Filter screen; 15. Handle; 16. Pressure roller; 17. Rotating scraper; 18. Transmission hose; 19. Fixed bracket; 20. Rotating shaft; 21. Second lead screw; 22. C-shaped bracket; 23. Telescopic rod; 24. Fixing block; 25. Third lead screw; 26. Conical protrusion; 27. Rotating block; 28. Universal wheel; 29. ​​Connecting rod; 30. Handrail; 31. Flexible protective plate. Detailed Implementation

[0023] 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.

[0024] like Figures 1 to 7 As shown, this utility model provides a gas detection sampling device, including a sampling collection box 1, a stabilizing plate 2 fixedly installed on the top of the sampling collection box 1, a lifting frame 3 fixedly installed on the top of the stabilizing plate 2, a lifting mechanism provided inside the lifting frame 3, a movable bearing plate 9 fixedly installed inside the lifting mechanism, a sampling gas collection box 11 fixedly installed on the top of the movable bearing plate 9, a gas pump 10 fixedly connected to the right side of the sampling gas collection box 11, and fixed plates 12 fixedly installed on the front and rear sides of the top left side of the sampling gas collection box 11. Rotating scrapers 17 are rotatably installed on the left and right sides between the two fixed plates 12. A rectangular groove 13 is provided on the outer surface of the gas box 11 and is located between two rotating scrapers 17. A filter screen 14 is slidably installed inside the sampling gas box 11 and extends through the sampling gas box 11. A handle 15 is fixedly installed on the top of the filter screen 14. Pressure rollers 16 are rotatably installed on the left and right sides of the inner side of the sampling gas box 11 and are located on the left and right sides of the filter screen 14. A transmission hose 18 is fixedly connected to the bottom side of the sampling gas box 11 and extends through the movable support plate 9 to the inner side of the sampling collection box 1 and communicates with it. Stabilizing mechanisms are fixedly installed on the left and right sides of the sampling collection box 1.

[0025] When staff need to take gas samples, the lifting mechanism is activated to move the carrier plate 9 to a suitable position. At the same time, the transmission hose 18 is also stretched or extended. Then, the air pump 10 is activated to draw the outside gas into the sampling collection box 11. Due to the pressure difference in the sampling collection box 1, the gas is transported into the sampling collection box 1 by the transmission hose 18. Because the filter screen 14 is prone to dust accumulation due to prolonged use at different heights, the handle 15 is pulled upward by external force. The handle 15 will pull the filter screen 14 upward, and the dust on the outer surface of the filter screen 14 will be compacted by the pressure rollers 16 on both sides. Then, it is pulled upward again, and the dust on the outer surface of the filter screen 14 is scraped off by the rotating scrapers 17 on both sides of the fixed plate 12, making it convenient for staff to clean.

[0026] By pulling the handle 15 upwards with external force, the handle 15 will also pull the filter screen 14 upwards. Then, the dust on the outer surface of the filter screen 14 will be compacted by the pressure rollers 16 on both sides. Then, by pulling it upwards again, the rotating scrapers 17 on both sides of the fixed plate 12 will scrape off the dust on the outer surface of the filter screen 14, making it convenient for staff to clean. Compared with traditional devices, this device allows staff to clean the filter screen in a timely manner, maintain its good filtration performance, thereby extending the overall service life of the sampling device, enabling the sampling device to accurately obtain target gas samples, providing reliable data for subsequent testing, and reducing the time and labor costs required for maintenance.

[0027] The stabilizing mechanism includes fixed brackets 19 fixedly installed on the left and right sides of the sampling collection box 1. A rotating shaft 20 is rotatably installed on the inner side of the fixed bracket 19. A C-shaped bracket 22 is fixedly sleeved on the outer surface of the rotating shaft 20. Telescopic rods 23 are slidably installed inside the extension rods on both sides of the C-shaped bracket 22. A connecting rod 29 is fixedly connected inside the telescopic rod 23 and passes through the inside of the telescopic rods 23 on both sides. Fixed blocks 24 are fixedly installed at the ends of both sides of the telescopic rod 23. A third lead screw 25 is threaded inside the fixed block 24. A rotating block 27 is fixedly installed at one end of the third lead screw 25. A conical protrusion 26 is fixedly installed at the other end of the third lead screw 25. A second lead screw 21 is fixedly installed at one end of the rotating shaft 20 and extends out of the fixed bracket 19 and is threadedly connected to the fixed bracket 19.

[0028] When the worker rotates the second lead screw 21, it will drive the rotating shaft 20 to start rotating. When the rotating shaft 20 starts rotating, it will drive the C-shaped bracket 22 to start adjusting its angle. When the C-shaped bracket 22 adjusts its angle, it will drive the telescopic rods 23 inside both sides to move to the adjusted position. When the telescopic rods 23 move to the adjusted position, they will drive the connecting rod 29 to move together. Then, it will drive the fixing blocks 24 on both sides to move to the appropriate position. At this time, the rotating block 27 is rotated. When the rotating block 27 rotates, it will drive the third lead screw 25 to start rotating. When the third lead screw 25 rotates, it will drive the conical protrusion 26 to drill into and fix to the bottom side of the ground.

[0029] Rotating the second lead screw 21 will cause the rotating shaft 20 to start rotating. When the rotating shaft 20 starts rotating, it will cause the C-shaped bracket 22 to start adjusting its angle. When the C-shaped bracket 22 adjusts its angle, it will cause the telescopic rods 23 inside both sides to move to the adjusted position. When the telescopic rods 23 move to the adjusted position, they will cause the connecting rod 29 to move together. Then, it will cause the fixing blocks 24 on both sides to move to the appropriate position. At this time, rotating the rotating block 27 will cause the third lead screw 25 to start rotating. When the third lead screw 25 rotates, it will cause the conical protrusion 26 to drill into and fix to the ground on the bottom side. Compared with the traditional device, this device can be fixed in different positions and angles according to the actual situation, thereby enhancing its applicability. At the same time, it can avoid external interference, make the sampling device work stably, ensure the reliability of the test data, and thus improve stability.

[0030] The lifting mechanism includes a lifting frame 3 with rectangular slide grooves 4 on both the front and rear sides. A first slider 5 is slidably installed inside one side of the rectangular slide groove 4. A first lead screw 7 is threaded inside the first slider 5, and both ends of the first lead screw 7 pass through the inside of the first slider 5. A motor 8 is fixedly installed inside the lifting frame 3, and the output shaft of the motor 8 extends to the inside of the rectangular slide groove 4 and is fixedly connected to the first lead screw 7. The end of the first lead screw 7 is rotatably connected to the inside of one side of the rectangular slide groove 4. A second slider 6 is slidably installed inside the other side of the rectangular slide groove 4. A movable bearing plate 9 is fixedly installed between the second slider 6 and the first slider 5.

[0031] By starting the motor 8, the output shaft of the motor 8 will drive the first lead screw 7 to start rotating. When the first lead screw 7 starts rotating, it will drive the first slider 5 to slide inside the rectangular slide groove 4. Then, by moving the support plate 9, the second slider 6 on the other side will slide inside the rectangular slide groove 4 on the other side, so that the moving support plate 9 can be used to sample at different heights.

[0032] Flexible protective plates 31 are fixedly installed on both sides of the inner side of the rectangular groove 13. The flexible protective plates 31 are in an inwardly curved arc shape and do not contact the filter screen 14.

[0033] By using the inwardly curved shape of the flexible protective plate 31, which does not contact the filter screen 14, it can effectively prevent the dust scraped by the rotating scraper 17 from falling into the inner side of the sampling gas collection box 11, thereby affecting the sampling.

[0034] The top of the filter screen 14 is fixedly equipped with a handle 15, and the handle 15 is C-shaped.

[0035] By making the handle 15 C-shaped, it is easy for the staff to pull the filter screen 14 through the handle 15, reducing uneven force, while the filter screen 14 can effectively filter impurities in the gas.

[0036] The bottom of the sampling collection box 1 is fixedly equipped with casters 28, and the casters 28 are located around the bottom of the sampling collection box 1. A handrail 30 is fixedly installed on the right side of the sampling collection box 1.

[0037] With the universal wheels 28 positioned around the bottom of the sampling collection box 1 and the handle 30 working together, staff can easily move the entire device, increasing its flexibility and mobility.

[0038] One end of the rotating shaft 20 is fixedly mounted with a second lead screw 21, and the second lead screw 21 extends out of the fixed bracket 19 and is threadedly connected to the fixed bracket 19.

[0039] The second lead screw 21 extends into a fixed bracket 19 and is threadedly connected to the fixed bracket 19. When the entire device needs to be moved, the stabilizing mechanism can be retracted by rotating the second lead screw 21, thereby increasing the applicability of the device.

[0040] Working principle and usage process of this utility model:

[0041] When staff need to take gas samples, the lifting mechanism is activated to move the carrier plate 9 to a suitable position. At the same time, the transmission hose 18 is also stretched or extended. Then, the air pump 10 is activated to draw the outside gas into the sampling collection box 11. Due to the pressure difference in the sampling collection box 1, the gas is transported into the sampling collection box 1 by the transmission hose 18. Because the filter screen 14 is prone to dust accumulation due to prolonged use at different heights, the handle 15 is pulled upward by external force. The handle 15 will pull the filter screen 14 upward, and the dust on the outer surface of the filter screen 14 will be compacted by the pressure rollers 16 on both sides. Then, it is pulled upward again, and the dust on the outer surface of the filter screen 14 is scraped off by the rotating scrapers 17 on both sides of the fixed plate 12, making it convenient for staff to clean.

[0042] When the worker rotates the second lead screw 21, it will drive the rotating shaft 20 to start rotating. When the rotating shaft 20 starts rotating, it will drive the C-shaped bracket 22 to start adjusting its angle. When the C-shaped bracket 22 adjusts its angle, it will drive the telescopic rods 23 inside both sides to move to the adjusted position. When the telescopic rods 23 move to the adjusted position, they will drive the connecting rod 29 to move together. Then, it will drive the fixing blocks 24 on both sides to move to the appropriate position. At this time, the rotating block 27 is rotated. When the rotating block 27 rotates, it will drive the third lead screw 25 to start rotating. When the third lead screw 25 rotates, it will drive the conical protrusion 26 to drill into and fix to the bottom side of the ground.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas detection sampling device, comprising a sampling collection box (1), characterized in that: A stabilizing plate (2) is fixedly installed on the top of the sampling collection box (1). A lifting frame (3) is fixedly installed on the top of the stabilizing plate (2). A lifting mechanism is provided on the inner side of the lifting frame (3). A movable bearing plate (9) is fixedly installed on the inner side of the lifting mechanism. A sampling gas collection box (11) is fixedly installed on the top of the movable bearing plate (9). An air pump (10) is fixedly connected to the right side of the sampling gas collection box (11). Fixing plates (12) are fixedly installed on the front and back sides of the top left side of the sampling gas collection box (11). Rotating scrapers (17) are rotatably installed on the left and right sides between the two fixing plates (12). A rectangular groove is provided on the outer surface of the sampling gas collection box (11). (13) and located between the two rotating scrapers (17), a filter screen (14) is slidably installed inside the sampling gas collection box (11) and the filter screen (14) extends through the sampling gas collection box (11), a handle (15) is fixedly installed on the top of the filter screen (14), pressure rollers (16) are rotatably installed on the left and right sides inside the sampling gas collection box (11) and the pressure rollers (16) are located on the left and right sides of the filter screen (14), a transmission hose (18) is fixedly connected to the bottom side of the sampling gas collection box (11) and the transmission hose (18) extends through the movable support plate (9) to the inside of the sampling collection box (1) and communicates with it, and a stabilizing mechanism is fixedly installed on the left and right sides of the sampling collection box (1).

2. The gas detection sampling device according to claim 1, characterized in that: The stabilizing mechanism includes a sampling collection box (1) with fixed brackets (19) fixedly installed on the left and right sides. A rotating shaft (20) is rotatably installed on the inner side of the fixed bracket (19). A C-shaped bracket (22) is fixedly sleeved on the outer surface of the rotating shaft (20). Telescopic rods (23) are slidably installed inside the extension rods on both sides of the C-shaped bracket (22). A connecting rod (29) is fixedly connected inside the telescopic rod (23), and the connecting rod (29) passes through the inside of the telescopic rods (23) on both sides. Fixed blocks (24) are fixedly installed on both ends of the telescopic rod (23). A third lead screw (25) is threaded inside the fixed block (24). A rotating block (27) is fixedly installed on one end of the third lead screw (25). A tapered protrusion (26) is fixedly installed on the other end of the third lead screw (25). A second lead screw (21) is fixedly installed on one end of the rotating shaft (20). The second lead screw (21) extends out of the fixed bracket (19) and is threadedly connected to the fixed bracket (19).

3. The gas detection sampling device according to claim 1, characterized in that: The lifting mechanism includes a lifting frame (3) with rectangular slide grooves (4) on both the front and rear sides. A first slider (5) is slidably installed inside one side of the rectangular slide groove (4). A first lead screw (7) is threaded inside the first slider (5) and both ends of the first lead screw (7) pass through the inside of the first slider (5). A motor (8) is fixedly installed inside the lifting frame (3) and the output shaft of the motor (8) extends to the inside of the rectangular slide groove (4) and is fixedly connected to the first lead screw (7). The end of the first lead screw (7) is rotatably connected to the inside of one side of the rectangular slide groove (4). A second slider (6) is slidably installed inside the other side of the rectangular slide groove (4). A movable bearing plate (9) is fixedly installed between the second slider (6) and the first slider (5).

4. A gas detection sampling device according to claim 1, characterized in that: Flexible protective plates (31) are fixedly installed on both sides of the inner side of the rectangular groove (13), and the flexible protective plates (31) are in an inwardly curved arc shape and do not contact the filter screen (14).

5. A gas detection sampling device according to claim 1, characterized in that: A handle (15) is fixedly installed on the top of the filter screen (14), and the handle (15) is C-shaped.

6. A gas detection sampling device according to claim 1, characterized in that: The bottom of the sampling collection box (1) is fixedly equipped with casters (28), and the casters (28) are located around the bottom of the sampling collection box (1). A handrail (30) is fixedly installed on the right side of the sampling collection box (1).

7. A gas detection sampling device according to claim 2, characterized in that: A second lead screw (21) is fixedly installed at one end of the rotating shaft (20), and the second lead screw (21) extends out of the fixed bracket (19) and is threadedly connected to the fixed bracket (19).

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