A carbon dioxide sensor

Abstract

The utility model relates to sensor technical field especially relates to a carbon dioxide sensor, including sensor component, sensor component fixedly connected on the lifting assembly, sensor component, sensor component includes the casing, the air chute that establishes in the casing is passed through the casing to be offered to the casing top, the piston is slidably connected in the air chute, the first trachea and the second trachea are symmetrically connected in the air chute side, the first trachea and the second trachea all are linked with the sealed cavity, the sensor body is provided in the sealed cavity. The utility model discloses through the piston sliding in the air chute by the air cylinder drive, thereby can suck the air in the external environment into the air chute, the air chute is linked with the sealed cavity, thereby the external air can enter the sealed cavity, and the air of the other end of piston is pushed out, can clean the dust on the filter screen, has the effect of initiative inhalation and dust cleaning, and the practicality is better.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a carbon dioxide sensor. Background Technology

[0002] A carbon dioxide sensor is a device used to detect the concentration of carbon dioxide. Carbon dioxide is one of the raw materials for photosynthesis in green plants, and 95% of the dry weight of crops comes from photosynthesis. Therefore, controlling the concentration using carbon dioxide sensors becomes an important factor affecting crop yield.

[0003] A search of Chinese patent publication number CN218512304U reveals a carbon dioxide sensor.

[0004] The above technical solution includes a carbon dioxide body and a cleaning mechanism. The carbon dioxide body has a vent. The cleaning mechanism is installed on the carbon dioxide body and corresponds to the vent. The cleaning mechanism includes a pair of guide posts, which are fixedly connected to the carbon dioxide body. A connector is slidably provided between the pair of guide posts, and multiple cleaning heads are installed on the connector. One of the guide posts has a screw threadedly connected to the connector, and a drive motor is connected to the screw. This utility model, through the design of the corresponding mechanism, can promptly remove dust from the vent of the infrared carbon dioxide sensor, preventing dust from clogging the vent. This ensures the accuracy of the infrared carbon dioxide sensor in monitoring carbon dioxide content, facilitating accurate acquisition of carbon dioxide content information by staff and, to a certain extent, guaranteeing the personal safety of staff.

[0005] However, in the above-mentioned scheme, when the airflow is full in environments such as mines, the sensor can receive less air, and the installation of air intake device is easy to block the air intake. Therefore, the technology is not convenient to adjust the height during use, and thus cannot detect environments at different heights.

[0006] Therefore, we propose a carbon dioxide sensor. Utility Model Content

[0007] The present invention aims to solve the technical problems existing in the prior art and provide a carbon dioxide sensor.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a carbon dioxide sensor, including a sensor assembly, wherein the sensor assembly is fixedly connected to a lifting assembly;

[0009] A sensor assembly includes a housing with a through-hole opening on the top of the housing. A piston is slidably connected inside the through-hole. A first air pipe and a second air pipe are symmetrically connected to one side of the through-hole. Both the first air pipe and the second air pipe are connected to a sealed cavity. A sensor body is disposed inside the sealed cavity.

[0010] Preferably, a movable groove is provided on one side of the air duct, and a connecting rod that passes through the movable groove is fixedly connected to one side of the piston. A push rod is fixedly connected to one end of the connecting rod, and the push rod is movably connected to the output end of the push cylinder. The push cylinder is fixedly connected inside the housing.

[0011] Preferably, the piston is provided with sealing heads at both ends, and the sealing heads are slidably and sealingly connected to the air groove.

[0012] Preferably, a filter screen covering the air duct is fixedly connected to the housing, and a display screen is also provided on the housing.

[0013] Preferably, the lifting assembly includes a lead screw, one end of which is rotatably connected to a fixed plate, and the other end of which is fixedly connected to the output end of a motor. The motor is fixedly connected to another fixed plate, and the fixed plate has a threaded hole.

[0014] Preferably, the lead screw is threaded with a threaded sleeve, which is fixedly connected to the sensor assembly.

[0015] Preferably, the lead screw is provided with slide bars on both sides, and a sliding sleeve is slidably connected to the slide bar, and the sliding sleeve is also fixedly connected to the sensor assembly.

[0016] This invention provides a carbon dioxide sensor, which has the following improvements and advantages compared with the prior art:

[0017] (1) This utility model uses a piston for breathing. A wind groove is provided on the top of the housing, penetrating the housing. A piston is slidably connected in the wind groove. A first air pipe and a second air pipe are symmetrically connected on one side of the wind groove. Both the first air pipe and the second air pipe are connected to a sealed cavity. A sensor body is provided in the sealed cavity. A movable groove is provided on one side of the wind groove. A connecting rod is fixedly connected to one side of the piston, penetrating the movable groove. A push rod is fixedly connected to one end of the connecting rod. The push rod is movably connected to the output end of the push cylinder. The push cylinder is fixedly connected in the housing. Sealing heads are provided at both ends of the piston. The sealing heads are slidably sealed to the wind groove. The piston is driven by the cylinder to slide in the wind groove, thereby drawing air from the external environment into the wind groove. The wind groove is connected to the sealed cavity, so that external air can enter the sealed cavity. The air at the other end of the piston is pushed out, which can clean the dust on the filter screen. It has the effect of active air intake and dust removal, and has good practicality.

[0018] (2) This utility model adopts a lead screw structure. One end of the lead screw is fixedly connected to a fixed plate, and the other end of the lead screw is rotatably connected to the output end of the motor. The motor is fixedly connected to another fixed plate. The fixed plate has a threaded hole. A threaded sleeve is threadedly connected to the lead screw. The threaded sleeve is fixedly connected to the sensor assembly. Slide rods are provided on both sides of the lead screw. Slide sleeves are slidably connected to the slide rods. The slide sleeves are also fixedly connected to the sensor assembly. By rotating the lead screw, the threaded sleeves move on the lead screw, thereby driving the sensor assembly to move. It can move the sensor assembly to the corresponding detection height and has the function of flexibly adjusting the detection height. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0021] Figure 2 This is a schematic planar view of the sensor assembly in this utility model.

[0022] Figure 3 This is a three-dimensional structural diagram of the lifting component in this utility model.

[0023] Legend:

[0024] 10. Lifting assembly; 11. Fixing plate; 12. Threaded sleeve; 13. Motor; 14. Slide rod; 15. Slide sleeve; 16. Lead screw; 17. Threaded hole; 20. Sensor assembly; 21. Housing; 22. Display screen; 23. Filter screen; 24. Air duct; 25. First air pipe; 26. Second air pipe; 27. Sealing cavity; 28. Sensor body; 29. ​​Piston; 30. Sealing head; 31. Connecting rod; 32. Push rod; 33. Push cylinder; 34. Movable groove. Detailed Implementation

[0025] The invention will now be further described with reference to the accompanying drawings and specific embodiments: Example

[0026] Please see Figures 1 to 3Embodiment 1 describes a sensor assembly 20 fixedly connected to a lifting assembly 10. The sensor assembly 20 includes a housing 21 with a through-hole 24 extending through it. The through-hole 24 allows air to enter a sealed cavity 27. Small holes can be provided at both ends of the through-hole 24 to increase airflow intensity. A piston 29 is slidably connected within the through-hole 24, its movement inducing and exhaling airflow, thus facilitating ventilation within the sealed cavity 27. A first air pipe 25 and a second air pipe 26 are symmetrically connected to one side of the through-hole 24, corresponding to the exhalation and inhalation phases of the piston 29, respectively. Both the first and second air pipes are connected to the sealed cavity 27, allowing external air to enter. A sensor body 28 is housed within the sealed cavity 27, used to detect carbon dioxide in the gas. The piston 29 has a movable groove 34 on one side of the air duct 24. The movable groove 34 facilitates the transmission of power from the connecting rod 31 to the piston 29. A connecting rod 31 that passes through the movable groove 34 is fixedly connected to one side of the piston 29. A push rod 32 is fixedly connected to one end of the connecting rod 31. The push rod 32 is movably connected to the output end of the push cylinder 33. The push cylinder 33 is fixedly connected inside the housing 21. The push cylinder 33 drives the push rod 32 to move, the push rod 32 drives the connecting rod 31 to move, and the connecting rod 31 drives the piston 29 to move. Sealing heads 30 are provided at both ends of the piston 29. The function of the sealing heads 30 is to keep one end sealed during the process to prevent air leakage. The sealing heads 30 are slidably sealed to the air duct 24. A filter screen 23 covering the air duct 24 is fixedly connected to the housing 21. The filter screen 23 can filter the air and reduce the entry of dust. A display screen 22 is also provided on the housing 21. The display screen 22 displays the detection results and is electrically connected to the sensor body 28.

[0027] In this embodiment, the push cylinder 33 is activated, which drives the push rod 32 to move. The push rod 32 drives the piston 29 to slide in the air duct 24. The piston 29 slides to one side, and its sealed structure can draw external air into the air duct 24. After entering the air duct 24, some of the air will enter the first air pipe 25 and then enter the sealed cavity 27 for detection by the sensor body. While one end of the piston 29 draws in air, the other end will push out the air in the air duct 24, thereby cleaning the filter screen 23 outside the air duct 24. The reciprocating motion of the piston 29 gives the device the effect of active air intake and dust removal, making it highly practical. Example

[0028] Please see Figure 1 and Figure 2Embodiment 2 describes a sensor assembly 20 fixedly connected to a lifting assembly 10. The lifting assembly 10 includes a lead screw 16, one end of which is rotatably connected to a fixed plate 11, and the other end of which is fixedly connected to the output end of a motor 13. The motor 13 drives the lead screw 16 to rotate. The motor 13 is fixedly connected to another fixed plate 11. The fixed plate 11 has a threaded hole 17. The function of the fixed plate 11 is to install components and to install this device. A threaded sleeve 12 is threadedly connected to the lead screw 16. The threaded sleeve 12 is fixedly connected to the sensor assembly 20. The rotation of the lead screw 16 causes the threaded sleeve 12 to move, and the movement of the threaded sleeve 12 causes the sensor assembly 20 to move. Slide rods 14 are provided on both sides of the lead screw 16. Slide sleeves 15 are slidably connected to the slide rods 14. The slide sleeves 15 are also fixedly connected to the sensor assembly 20. The slide rods 14 move on the slide sleeves 15, thereby limiting the sensor assembly 20.

[0029] In this embodiment, the motor 13 is started, and the motor 13 drives the lead screw 16 to rotate. The rotation of the lead screw 16 drives the lead sleeve 12 to rotate. The lead sleeve 12 is connected to the outer shell. The outer shell is also connected to the sliding sleeve 15 that slides on the slide rod 14. The sliding of the sliding sleeve 15 on the slide rod 14 limits the movement of the lead sleeve 12, thereby allowing the outer shell to move up and down. This allows the sensor assembly 20 to be raised and lowered, and the height of the sensor assembly 20 can be flexibly adjusted to detect the air environment at different heights.

Claims

1. A carbon dioxide sensor, comprising a sensor assembly (20), characterized in that: The sensor assembly (20) is fixedly connected to the lifting assembly (10); The sensor assembly (20) includes a housing (21), and a wind groove (24) is provided above the housing (21) that penetrates the housing (21). A piston (29) is slidably connected in the wind groove (24). A first air pipe (25) and a second air pipe (26) are symmetrically connected on one side of the wind groove (24). The first air pipe (25) and the second air pipe (26) are both connected to a sealed cavity (27). A sensor body (28) is provided in the sealed cavity (27).

2. A carbon dioxide sensor according to claim 1, characterized in that: The air duct (24) has a movable groove (34) on one side, and a connecting rod (31) that passes through the movable groove (34) is fixedly connected to one side of the piston (29). A push rod (32) is fixedly connected to one end of the connecting rod (31). The push rod (32) is movably connected to the output end of the push cylinder (33). The push cylinder (33) is fixedly connected inside the housing (21).

3. A carbon dioxide sensor according to claim 2, characterized in that: The piston (29) is provided with sealing heads (30) at both ends, and the sealing heads (30) are slidably sealed to the air groove (24).

4. A carbon dioxide sensor according to claim 1, characterized in that: A filter screen (23) covering the air duct (24) is fixedly connected to the housing (21), and a display screen (22) is also provided on the housing (21).

5. A carbon dioxide sensor according to claim 1, characterized in that: The lifting assembly (10) includes a lead screw (16), one end of which is rotatably connected to a fixed plate (11), and the other end of which is fixedly connected to the output end of a motor (13). The motor (13) is fixedly connected to another fixed plate (11), and the fixed plate (11) has a threaded hole (17).

6. A carbon dioxide sensor according to claim 5, characterized in that: A threaded sleeve (12) is threaded onto the lead screw (16), and the threaded sleeve (12) is fixedly connected to the sensor assembly (20).

7. A carbon dioxide sensor according to claim 5, characterized in that: The lead screw (16) is provided with slide rods (14) on both sides, and a sliding sleeve (15) is slidably connected on the slide rod (14). The sliding sleeve (15) is also fixedly connected to the sensor assembly (20).

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