Carbon dioxide gas detection device

Abstract

The utility model relates to gas detection, specifically disclose a kind of carbon dioxide gas detection device, including mounting plate, the sealing cover of being located in one side of mounting plate, the through-hole being opened in the side of sealing cover away from mounting plate, the sleeve pipe of being sleeved in the outer wall of sealing cover, the one-way exhaust device of being located in the one end of sleeve pipe away from mounting plate, the air inlet hole being opened in the one end lateral wall of sleeve pipe away from mounting plate, the gas guide pipe being located in sleeve pipe, and to drive sleeve pipe along its axial movement driving device;The main body of gas detector is located in sealing cover, and the probe of gas detector is located in sleeve pipe after passing through through-hole;Gas guide pipe is soft pipeline, one end of gas guide pipe is connected with air inlet hole, and the other end is set towards probe.The carbon dioxide gas detection device of the utility model can ensure detection accuracy and does not need to set up gas source under the premise of realizing automatic cleaning.

Description

Technical Field

[0001] This utility model relates to the technical field of gas detection, and more specifically, to a carbon dioxide gas detection device. Background Technology

[0002] In the fields of industrial production and environmental monitoring, real-time monitoring of carbon dioxide concentration is of paramount importance. This indicator not only relates to the stability of production processes and product quality, but also directly affects the safety of the working environment and the balance of the ecological environment.

[0003] Currently, carbon dioxide concentration monitoring mainly adopts two methods: one is handheld detectors, which can achieve flexible, non-fixed-point detection, but it is difficult to meet the needs of long-term, continuous monitoring; the other is detectors installed at fixed points, which usually need to be deployed at high positions to ensure the accuracy and representativeness of the detection.

[0004] However, in environments with high dust and particulate matter concentrations, the probes of fixed detectors are prone to rapid accumulation of contaminants, leading to distorted data and severely impacting monitoring effectiveness. Manual cleaning is not only cumbersome, requiring frequent interruptions to the monitoring process, but also poses safety hazards due to working at heights. Using traditional purging equipment requires compressed air cylinders and compressors, increasing installation difficulty, limiting site conditions, and significantly raising equipment procurement and maintenance costs, making it unsuitable for widespread application in various scenarios. Therefore, designing a carbon dioxide detection device with efficient self-cleaning capabilities is urgently needed. Utility Model Content

[0005] The purpose of this invention is to provide a carbon dioxide gas detection device that can achieve automatic cleaning while ensuring detection accuracy and without requiring a gas source.

[0006] This utility model is achieved through the following technical solution: The carbon dioxide gas detection device of this utility model includes a mounting plate, a sealing cover disposed on one side of the mounting plate, a through hole opened on the side of the sealing cover away from the mounting plate, a sleeve that is slidably fitted onto the outer wall of the sealing cover, a one-way exhaust device disposed at the end of the sleeve away from the mounting plate, an air inlet hole opened on the side wall of the end of the sleeve away from the mounting plate, a gas guide pipe disposed in the sleeve, and a driving device for driving the sleeve to move along its axial direction; the main body of the gas detector is disposed in the sealing cover, and the probe of the gas detector is disposed in the sleeve after passing through the through hole; the gas guide pipe is a flexible pipe, one end of the gas guide pipe is connected to the air inlet hole, and the other end is set towards the probe.

[0007] Furthermore, the air guide tubes are provided in pairs, and the pair of air guide tubes are respectively located on opposite sides of the probe.

[0008] Furthermore, a pull rod is provided on the outer side of the sealing cover away from the mounting plate, and a hanging ring is provided on the pull rod; the end of the air guide tube away from the sleeve is engaged in the hanging ring.

[0009] Furthermore, an air intake hood is provided at the connection between the air guide pipe and the air inlet. One end of the air intake hood is fixedly connected to the air inlet, and the other end is fixedly connected to the air guide pipe. The diameter of the end of the air intake hood near the air guide pipe is smaller than the diameter of the other end.

[0010] Furthermore, the air intake hood is equipped with filter cotton, which is detachably clipped into the air intake hood.

[0011] Furthermore, an arc-shaped fixing plate is attached to the outer wall of the sleeve, the sleeve is slidably connected to the fixing plate, and the fixing plate is fixedly connected to the mounting plate.

[0012] Furthermore, the fixing plate is provided with arc-shaped scraper strips on both sides, and the scraper strips are attached to the outer wall of the sleeve; the scraper strips are used to scrape off the dust on the filter cotton.

[0013] Furthermore, the scraper is provided in multiple parts, and the multiple scraper are distributed along the axial direction of the sleeve.

[0014] Furthermore, the driving device includes an electric push rod fixedly connected to the mounting plate, and a connecting plate fixedly disposed on the side of the sleeve; the axial direction of the electric push rod is parallel to the axial direction of the sleeve, and the movable end of the electric push rod is fixedly connected to the connecting plate.

[0015] Furthermore, the one-way exhaust device includes an exhaust hole at the end of the sleeve away from the mounting plate, a limiting plate at the side of the exhaust hole away from the mounting plate, a sealing plate between the limiting plate and the sleeve, a spring between the sealing plate and the limiting plate, and a connecting rod for connecting the limiting plate and the sleeve; the diameter of the sealing plate is larger than the diameter of the exhaust hole.

[0016] The technical solution of this utility model has at least the following advantages and beneficial effects: In use, the carbon dioxide gas detection device of this utility model has its mounting plate installed at the location where carbon dioxide detection is required. Detection is performed periodically or continuously. When most of the sleeve is covered by the sealing cover, a driving device can be used to move the sleeve away from the mounting plate. At this time, the space between the sleeve and the sealing cover increases, allowing external gas to be drawn into the sleeve. Since only the air inlet can allow air in, the airflow will quickly enter the sleeve through the air inlet and the air guide pipe. Because the sleeve faces the probe of the detector, it can flush the probe, removing dust. Then, the driving device pushes the sleeve towards the mounting plate, allowing the gas in the sleeve to be discharged through the air guide pipe and the one-way exhaust device. When the device is stationary, the inside of the sleeve is not sealed, and the inside of the sleeve is connected to the outside. Therefore, a detector can be used to detect carbon dioxide in the air at this time. This structure not only ensures normal carbon dioxide detection, but also allows for periodic airflow flushing of the probe, preventing a large amount of dust from adhering and affecting the detection results. Furthermore, it eliminates the need for airflow-related pipelines, air compressors, gas cylinders, and other air source structures. Attached Figure Description

[0017] Figure 1 A schematic diagram of the carbon dioxide gas detection device provided in an embodiment of this utility model;

[0018] Figure 2 A two-view structural schematic diagram of the carbon dioxide gas detection device provided in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the carbon dioxide gas detection device provided in an embodiment of the present invention;

[0020] Figure 4 A schematic diagram of the sealing cover provided in an embodiment of this utility model from one perspective;

[0021] Figure 5 A two-view structural schematic diagram of the sealing cover provided in an embodiment of this utility model;

[0022] Figure 6 A schematic diagram of the sleeve provided in an embodiment of this utility model from one perspective;

[0023] Figure 7 A two-view structural schematic diagram of the sleeve provided in an embodiment of this utility model;

[0024] Figure 8 This is a schematic diagram of the air guide tube provided in an embodiment of the present invention.

[0025] Icons: 10-Mounting plate, 21-Sealing cover, 22-Through hole, 23-Gas detector, 24-Probe, 25-Pull rod, 26-Hanging ring, 30-Sleeve, 31-Gas duct, 32-Inlet, 33-Inlet cover, 34-Filter cotton, 35-Drive device, 351-Electric push rod, 352-Connecting plate, 36-Fixing plate, 37-Scraper strip, 38-One-way exhaust device, 381-Exhaust hole, 382-Limiting plate, 383-Sealing plate, 384-Spring, 385-Connecting rod. Detailed Implementation

[0026] Example

[0027] The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 -Appendix Figure 8 As shown, the carbon dioxide gas detection device of this embodiment includes a mounting plate 10, a sealing cover 21 disposed on one side of the mounting plate 10, a through hole 22 opened on the side of the sealing cover 21 away from the mounting plate 10, a sleeve 30 that is slidably fitted onto the outer wall of the sealing cover 21, a one-way exhaust device 38 disposed at the end of the sleeve 30 away from the mounting plate 10, an air inlet 32 ​​opened on the side wall of the end of the sleeve 30 away from the mounting plate 10, a gas guide pipe 31 disposed in the sleeve 30, and a driving device 35 for driving the sleeve 30 to move axially therein; the main body of the gas detector 23 is disposed in the sealing cover 21, and the probe 24 of the gas detector 23 is disposed in the sleeve 30 after passing through the through hole 22; the gas guide pipe 31 is a flexible pipe, one end of the gas guide pipe 31 is connected to the air inlet 32, and the other end is disposed towards the probe 24. Specifically, during use, the mounting plate 10 is installed at the location where carbon dioxide detection is required. Detection can be performed periodically or continuously. When most of the sleeve 30 is covered by the sealing cover 21, the drive device 35 can be used to drive the sleeve 30 away from the mounting plate 10. At this time, the space between the sleeve 30 and the sealing cover 21 increases, allowing outside gas to be drawn into the sleeve 30. Since only the air inlet 32 ​​can allow air to enter, the airflow will quickly enter the sleeve 30 through the air inlet 32 ​​and the air guide tube 31. Since the sleeve 30 faces the detector probe 24, it can flush the detector probe 24, removing dust from the probe 24. Then, the drive device 35 pushes the sleeve 30 towards the mounting plate 10. At this time, the gas in the sleeve 30 can be discharged through the air guide tube 31 and the one-way exhaust device 38. When the device is stationary, the inside of the sleeve 30 is not sealed, and the inside of the sleeve 30 is connected to the outside. Therefore, the detector can be used to detect carbon dioxide in the air at this time. This structure not only ensures normal carbon dioxide detection, but also allows for periodic airflow flushing of the probe 24, preventing a large amount of dust from adhering and affecting the detection results. Furthermore, it eliminates the need for airflow-related pipelines, air compressors, gas cylinders, and other structures.

[0028] In this embodiment, a pair of air guide tubes 31 are provided, with the pair of air guide tubes 31 respectively located on opposite sides of the probe 24. Specifically, the pair of air guide tubes 31 can more thoroughly flush the outer side of the probe 24.

[0029] In this embodiment, a pull rod 25 is provided on the outer side of the sealing cover 21 away from the mounting plate 10, and a hanging ring 26 is provided on the pull rod 25; the end of the air guide tube 31 away from the sleeve 30 is locked in the hanging ring 26. Specifically, the pull rod 25 and the hanging ring 26 can effectively fix the end of the air guide tube 31, so that its end can always face the probe 24 for blowing air.

[0030] In this embodiment, an air intake hood 33 is provided at the connection between the air duct 31 and the air inlet 32. One end of the air intake hood 33 is fixedly connected to the air inlet 32, and the other end is fixedly connected to the air duct 31. The diameter of the end of the air intake hood 33 near the air duct 31 is smaller than the diameter of the other end. A filter cotton 34 is provided inside the air intake hood 33, and the filter cotton 34 is detachably clipped into the air intake hood 33. Specifically, the purpose of providing an air intake hood 33 with a diameter larger than that of the air duct 31 is to accommodate a larger filter cotton 34, so that the air entering the sleeve 30 can be preliminarily filtered by the filter cotton 34, reducing the amount of dust entering the sleeve 30. Furthermore, the filter cotton 34 can be easily removed and replaced.

[0031] In this embodiment, an arc-shaped fixing plate 36 is attached to the outer wall of the sleeve 30. The sleeve 30 is slidably connected to the fixing plate 36, and the fixing plate 36 is fixedly connected to the mounting plate 10. Arc-shaped scraper strips 37 are provided on both sides of the fixing plate 36 and are attached to the outer wall of the sleeve 30. The scraper strips 37 are used to scrape away dust from the filter cotton 34. Multiple scraper strips 37 are provided and distributed along the axial direction of the sleeve 30. Specifically, the fixing plate 36 is fixedly mounted on the mounting plate 10, which provides support for the sleeve 30. When the driving device 35 drives the sleeve 30 to move, the filter cotton 34 passes through the scraper strips 37. At this time, the scraper strips 37 can scrape away some dust from the surface of the filter cotton 34, preventing severe clogging. It should be noted that the filter cotton 34 is only used to filter large dust particles.

[0032] The driving device 35 in this embodiment includes an electric push rod 351 fixedly connected to the mounting plate 10, and a connecting plate 352 fixedly disposed on the side of the sleeve 30; the axial direction of the electric push rod 351 is parallel to the axial direction of the sleeve 30, and the movable end of the electric push rod 351 is fixedly connected to the connecting plate 352. Specifically, the sleeve 30 can be periodically moved by the small or micro electric push rod 351, thereby flushing the probe 24.

[0033] The one-way exhaust device 38 in this embodiment includes an exhaust hole 381 at the end of the sleeve 30 away from the mounting plate 10, a limiting plate 382 on the side of the exhaust hole 381 away from the mounting plate 10, a sealing plate 383 between the limiting plate 382 and the sleeve 30, a spring 384 between the sealing plate 383 and the limiting plate 382, ​​and a connecting rod 385 for connecting the limiting plate 382 and the sleeve 30; the diameter of the sealing plate 383 is larger than the diameter of the exhaust hole 381. Specifically, this allows the exhaust hole 381 to only exhaust air and not allow air to enter. Exhaust can also be quickly vented through the exhaust hole 381. Alternatively, the exhaust hole 381 can be directly closed, allowing gas to be discharged from the air guide pipe 31 and the filter cotton 34, backflushing the filter cotton 34.

[0034] In summary, the carbon dioxide gas detection device of this embodiment is used by installing the mounting plate 10 at the location where carbon dioxide detection is required. Detection is performed periodically or continuously. When most of the sleeve 30 is covered by the sealing cover 21, the drive device 35 can drive the sleeve 30 to move away from the mounting plate 10. At this time, the space between the sleeve 30 and the sealing cover 21 increases, allowing external gas to be drawn into the sleeve 30. Since only the air inlet 32 ​​can allow air to enter, the airflow will quickly enter the sleeve 30 through the air inlet 32 ​​and the air guide tube 31. Since the sleeve 30 faces the detector probe 24, it can flush the detector probe 24, removing dust from the probe 24. Then, the drive device 35 pushes the sleeve 30 towards the mounting plate 10. At this time, the gas in the sleeve 30 can be discharged through the air guide tube 31 and the one-way exhaust device 38. When the device is stationary, the inside of the sleeve 30 is not sealed, and the inside of the sleeve 30 is connected to the outside. Therefore, the detector can be used to detect carbon dioxide in the air at this time. This structure not only ensures normal carbon dioxide detection, but also allows for periodic airflow flushing of the probe 24, preventing a large amount of dust from adhering and affecting the detection results. Furthermore, it eliminates the need for airflow-related pipelines, air compressors, gas cylinders, and other structures.

[0035] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A carbon dioxide gas detection device, characterized in that: Includes a mounting plate (10), a sealing cover (21) disposed on one side of the mounting plate (10), a through hole (22) opened on the side of the sealing cover (21) away from the mounting plate (10), a sleeve (30) that is slidably fitted on the outer wall of the sealing cover (21), a one-way exhaust device (38) disposed at the end of the sleeve (30) away from the mounting plate (10), an air inlet (32) opened on the side wall of the end of the sleeve (30) away from the mounting plate (10), an air guide pipe (31) disposed in the sleeve (30), and a drive device (35) for driving the sleeve (30) to move along its axial direction; The main body of the gas detector (23) is located in the sealing cover (21), and the probe (24) of the gas detector (23) is located in the sleeve (30) after passing through the through hole (22); the gas guide tube (31) is a soft pipe, one end of the gas guide tube (31) is connected to the air inlet (32), and the other end is set towards the probe (24).

2. The carbon dioxide gas detection device according to claim 1, characterized in that: The air guide tubes (31) are provided in pairs, and the pair of air guide tubes (31) are respectively located on opposite sides of the probe (24).

3. The carbon dioxide gas detection device according to claim 1, characterized in that: A pull rod (25) is provided on the outer side of the end of the sealing cover (21) away from the mounting plate (10), and a hanging ring (26) is provided on the pull rod (25); The end of the air guide tube (31) away from the sleeve (30) is engaged in the hanging ring (26).

4. The carbon dioxide gas detection device according to claim 1, characterized in that: An air intake cover (33) is provided at the connection between the air guide pipe (31) and the air inlet (32). One end of the air intake cover (33) is fixedly connected to the air inlet (32), and the other end is fixedly connected to the air guide pipe (31). The diameter of the air intake shroud (33) at one end near the air duct (31) is smaller than the diameter at the other end.

5. The carbon dioxide gas detection device according to claim 4, characterized in that: The air intake hood (33) is equipped with a filter cotton (34), which is detachably clipped into the air intake hood (33).

6. The carbon dioxide gas detection device according to claim 5, characterized in that: The outer wall of the sleeve (30) is fitted with an arc-shaped fixing plate (36), the sleeve (30) is slidably connected to the fixing plate (36), and the fixing plate (36) is fixedly connected to the mounting plate (10).

7. The carbon dioxide gas detection device according to claim 6, characterized in that: The fixing plate (36) has arc-shaped scraper strips (37) on both sides, and the scraper strips (37) are attached to the outer wall of the sleeve (30); The scraper (37) is used to scrape off dust from the filter cotton (34).

8. The carbon dioxide gas detection device according to claim 7, characterized in that: The scraper (37) is provided in multiple ways, and the multiple scraper (37) are distributed along the axial direction of the sleeve (30).

9. The carbon dioxide gas detection device according to claim 1, characterized in that: The drive device (35) includes an electric push rod (351) fixedly connected to the mounting plate (10), and a connecting plate (352) fixedly disposed on the side of the sleeve (30); The axial direction of the electric push rod (351) is parallel to the axial direction of the sleeve (30), and the movable end of the electric push rod (351) is fixedly connected to the connecting plate (352).

10. The carbon dioxide gas detection device according to claim 1, characterized in that: The one-way exhaust device (38) includes an exhaust hole (381) opened at the end of the sleeve (30) away from the mounting plate (10), a limiting plate (382) disposed on the side of the exhaust hole (381) away from the mounting plate (10), a sealing plate (383) disposed between the limiting plate (382) and the sleeve (30), a spring (384) disposed between the sealing plate (383) and the limiting plate (382), and a connecting rod (385) for connecting the limiting plate (382) and the sleeve (30); The diameter of the sealing plate (383) is larger than the diameter of the vent (381).

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