Self-cleaning carbon dioxide leakage detector

Abstract

The invention provides a self-cleaning carbon dioxide leakage detector, which comprises a detector body, a cleaning mechanism and a filtering mechanism, and is characterized in that the detector body is provided with a detection chamber and an air inlet connected with the detection chamber, and the air inlet of the detector body is connected with a connecting pipe; the cleaning mechanism comprises a mounting pipe, a cleaning head, a motor and a telescopic device, the mounting pipe is detachably connected with the connecting pipe, a shell of the telescopic device is connected to one end of the mounting pipe, the telescopic end of the telescopic device is connected with a shell of the motor, and the driving end of the motor is connected with the cleaning head and drives the cleaning head to rotate so as to clean the detection probe in the detector body; a gas outlet of the filtering mechanism is detachably connected with the other end of the mounting pipe so as to filter impurities in the gas to be detected. By arranging the cleaning mechanism, impurities on the surface of the detection probe can be effectively cleaned, the cleanliness of the detection probe and the detection accuracy are guaranteed, the self-cleaning function is achieved, the service life of the detector is prolonged, and the stable performance of the detector is maintained.

Description

Technical Field

[0001] The invention relates to the technical field of carbon dioxide detectors, and in particular to a self-cleaning carbon dioxide leakage detector. Background Art

[0002] In many scenarios, such as industrial production and warehousing, carbon dioxide leaks need to be detected in a timely manner. A carbon dioxide detector is a special device used to detect the carbon dioxide content and other related parameters in the atmosphere. This type of device is usually equipped with a carbon dioxide sensor component, that is, a detection probe. However, during the use of existing carbon dioxide leak detectors, the detection probes are easily contaminated by dust, impurities, etc., which affects the accuracy and reliability of the detection and requires regular manual cleaning, which is cumbersome. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, an embodiment of the present invention provides a self-cleaning carbon dioxide leak detector, which realizes the self-cleaning function and ensures the cleanliness of the detection probe and the accuracy of the detection.

[0004] An embodiment of the present invention proposes a self-cleaning carbon dioxide leak detector, comprising: a detector body, a cleaning mechanism and a filtering mechanism, wherein the detector body has a detection chamber and an air inlet connected to the detection chamber, and a connecting pipe is connected to the air inlet of the detector body; the cleaning mechanism comprises a mounting tube, a cleaning head, a motor and a telescopic device, the mounting tube and the connecting tube are detachably connected, the detection chamber is connected to the outside through the mounting tube, the mounting tube has a first end and a second end in a radial direction, the shell of the telescopic device is connected to the first end of the mounting tube, the telescopic end of the telescopic device is connected to the casing of the motor, the driving end of the motor is connected to the cleaning head and drives the cleaning head to rotate so as to clean the detection probe in the detector body; the filtering mechanism has an air inlet and an air outlet, and the air outlet of the filtering mechanism is detachably connected to the second end of the mounting tube so as to filter out impurities in the gas to be measured.

[0005] In some embodiments, the telescopic device is an electric cylinder, which is detachably fixed to the first end of the mounting tube via a fixing frame.

[0006] In some embodiments, the first end of the mounting tube is threadedly connected to the connecting tube, and a first sealing ring is provided at the connection between the mounting tube and the connecting tube, and the second end of the mounting tube is threadedly connected to the filtering mechanism, and a second sealing ring is provided at the connection between the mounting tube and the filtering mechanism.

[0007] In some embodiments, a limiting device is connected to the telescopic rod of the electric cylinder. The limiting device is located below the motor and limits the telescopic distance of the telescopic rod of the electric cylinder.

[0008] In some embodiments, the mounting tube includes a first threaded portion, a connecting ring and a second threaded portion, the connecting ring is fixedly connected between the first threaded portion and the second threaded portion, the first threaded portion is threadedly connected to the connecting tube, the second threaded portion is threadedly connected to the filtering mechanism, an annular groove is provided at the junction of the first threaded portion and the connecting ring, the first sealing ring is inserted into the annular groove, when the first threaded portion is fully screwed into the connecting tube, the upper end face of the connecting ring abuts against the lower end face of the connecting tube, when the second threaded portion is fully threadedly connected to the filtering mechanism, the lower end face of the connecting ring abuts against the upper end face of the filtering mechanism.

[0009] In some embodiments, the filtering mechanism includes a filter tube and a filter screen, the upper end of the filter tube is threadedly connected to the second threaded portion of the mounting tube, and the filter screen is detachably connected to the lower end of the filter tube.

[0010] In some embodiments, the filter tube is filled with a filter element.

[0011] In some embodiments, the motor has an output shaft, an annular groove is formed on the outer circumference of the output shaft, and a snap ring is fixedly connected to the lower end of the cleaning head, and the snap ring is snapped into the annular groove.

[0012] In some embodiments, the cleaning head is a cylindrical ring structure with an open upper end.

[0013] In some embodiments, the limiting device is in a cross structure, and includes a sleeve and a limiting plate. The sleeve is sleeved on the telescopic rod of the electric cylinder and fixedly connected to the telescopic rod. Four limiting plates are provided and are evenly connected to the outer periphery of the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings.

[0015] in:

[0016] Figure 1 Schematic diagram of the structure of a self-cleaning carbon dioxide leak detector in an embodiment of the present invention;

[0017] Figure 2 for Figure 1 An internal schematic diagram of the cleaning mechanism in FIG.

[0018] Figure 3 for Figure 1 Internal schematic diagram of the filtering mechanism in FIG.

[0019] Figure 4 for Figure 2 A magnified schematic diagram of part A;

[0020] Reference numerals:

[0021] 1-detector body; 2-connecting tube; 3-cleaning mechanism; 301-first threaded portion; 302-connecting ring; 303-second threaded portion; 304-cleaning head; 305-motor; 306-limiting device; 307-electric cylinder; 308-fixing bracket; 309-first sealing ring; 310-annular groove; 4-filtering mechanism; 401-filter element; 402-filter tube; 403-second sealing ring; 404-filter screen. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0023] A self-cleaning carbon dioxide leak detector according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0024] like Figure 1-4 As shown, an embodiment of the present invention proposes a self-cleaning carbon dioxide leak detector, comprising: a detector body 1, a cleaning mechanism 3 and a filtering mechanism 4, the detector body 1 having a detection chamber and an air inlet connected to the detection chamber, and a connecting pipe 2 is connected to the air inlet of the detector body 1; the cleaning mechanism 3 comprises a mounting tube, a cleaning head 304, a motor 305 and a telescopic device, the mounting tube is detachably connected to the connecting tube 2, the detection chamber is connected to the outside through the mounting tube, the mounting tube has a first end and a second end in the radial direction, the shell of the telescopic device is connected to the first end of the mounting tube, the telescopic end of the telescopic device is connected to the casing of the motor 305, the driving end of the motor 305 is connected to the cleaning head 304 and drives the cleaning head 304 to rotate, so as to clean the detection probe in the detector body 1; the filtering mechanism 4 has an air inlet and an air outlet, and the air outlet of the filtering mechanism 4 is detachably connected to the second end of the mounting tube, so as to filter out impurities in the gas to be measured.

[0025] The embodiment of the present invention sets up a cleaning mechanism 3, and the telescopic device drives the motor 305 to move toward the detection probe. The motor 305 drives the cleaning head 304 to rotate at high speed, which can effectively clean the impurities and pollutants on the surface of the detection probe, ensure the cleanliness of the detection probe and the accuracy of detection, realize the self-cleaning function, extend the service life of the detector, and maintain its stable performance.

[0026] It should be noted that the cleaning mechanism 3 will not prevent external air from entering the detection chamber, and a certain gap will be left to allow external air to pass through.

[0027] In this embodiment, the first end of the mounting tube refers to the upper end of the mounting tube, and the second end of the mounting tube refers to the lower end of the mounting tube.

[0028] Furthermore, the motor 305 is a micro motor and includes a housing and a drive shaft. The housing of the motor 305 is fixedly connected to the telescopic end of the telescopic device by bolts, and the telescopic device drives the motor 305 to move in a direction toward or away from the detection probe.

[0029] Further, a corresponding switch is arranged outside the detector to control the movement of the motor 305 and the telescopic device. When the cleaning work is completed, the switch is operated to return the telescopic rod of the telescopic device to its original position.

[0030] In some embodiments, Figure 4 As shown, the telescopic device is an electric cylinder 307, and the electric cylinder 307 is detachably fixedly connected to the first end of the mounting tube through a fixing frame 308.

[0031] Furthermore, the electric cylinder 307 is a micro electric cylinder.

[0032] Furthermore, the fixing frame 308 fixes the four sides of the cylinder body of the electric cylinder 307 respectively, and the detachable fixing connection method is to connect by bolts.

[0033] In some embodiments, Figure 3 , 4 As shown, the first end of the mounting tube is connected to the connecting tube 2 by threads, and a first sealing ring 309 is provided at the connection between the mounting tube and the connecting tube 2, and the second end of the mounting tube is connected to the filtering mechanism 4 by threads, and a second sealing ring 403 is provided at the connection between the mounting tube and the filtering mechanism 4. By providing the first sealing ring 309 and the second sealing ring 403, the stability and good sealing of the overall structural connection of the detector are ensured, gas or impurities are prevented from leaking or entering at the interface, and the reliability of the detection process is guaranteed. Moreover, the threaded connection can ensure the stability of the overall structure and facilitate disassembly and assembly.

[0034] In some embodiments, Figure 4 As shown, a limit device 306 is connected to the telescopic rod of the electric cylinder 307 . The limit device 306 is located below the motor 305 . The limit device 306 limits the telescopic distance of the telescopic rod of the electric cylinder 307 .

[0035] In some embodiments, Figure 3As shown, the mounting tube includes a first threaded portion 301, a connecting ring 302 and a second threaded portion 303, the connecting ring 302 is fixedly connected between the first threaded portion 301 and the second threaded portion 303, the first threaded portion 301 is threadedly connected to the connecting tube 2, the second threaded portion 303 is threadedly connected to the filtering mechanism 4, an annular groove 310 is provided at the junction of the first threaded portion 301 and the connecting ring 302, and the first sealing ring 309 is inserted into the annular groove 310, when the first threaded portion 301 is fully screwed into the connecting tube 2, the upper end face of the connecting ring 302 abuts against the lower end face of the connecting tube 2, and when the second threaded portion 303 is fully threadedly connected to the filtering mechanism 4, the lower end face of the connecting ring 302 abuts against the upper end face of the filtering mechanism 4.

[0036] In some embodiments, Figure 3 As shown, the filter mechanism 4 includes a filter tube 402 and a filter screen 404. The upper end of the filter tube 402 is threadedly connected to the second threaded portion 303 of the mounting tube, and the filter screen 404 is detachably connected to the lower end of the filter tube 402. By setting up double filtration, impurities and particulate matter in the air can be effectively filtered to prevent dust particles from entering the detector to block, damage or affect the sensitivity and accuracy of the detection probe, thereby improving the detection precision and accuracy, and also protecting the detection probe.

[0037] Furthermore, the filter screen 404 is connected to the filter tube 402 by bolts, so that the filter screen 404 can be easily disassembled, assembled and replaced.

[0038] In some embodiments, Figure 3 As shown, the filter tube 402 is filled with a filter element 401. After a period of use, the filter element 401 can be replaced to ensure the effectiveness of filtering.

[0039] In some embodiments, Figure 4 As shown, the motor 305 has an output shaft, the outer periphery of which is provided with an annular groove, the lower end of the cleaning head 304 is fixedly connected to a snap ring, and the snap ring is snapped into the annular groove, so as to facilitate the disassembly, assembly and replacement of the cleaning head 304.

[0040] Furthermore, the clamping ring may be made of an elastic material, such as rubber, silicone, etc., or may be a metal clamping structure.

[0041] In some embodiments, Figure 4 As shown, the cleaning head 304 is a cylindrical ring structure with an open upper end, which is convenient for covering and cleaning the detection probe.

[0042] In some embodiments, Figure 4As shown, the limiting device 306 is a cross structure, and includes a sleeve and a limiting plate. The sleeve is sleeved on the telescopic rod of the electric cylinder 307 and fixedly connected to the telescopic rod. Four limiting plates are provided and evenly connected to the outer periphery of the sleeve.

[0043] It is understandable that the limiting device 306 cooperates with the limiting block in the detection chamber. When the limiting device 306 is extended for a certain distance, the limiting device 306 abuts against the limiting block in the detection chamber to limit the position. When extended to the limiting block, the cleaning head 304 can just contact the detection probe and clean it. The bottom of the limiting device 306 cooperates with the cylinder body of the electric cylinder 307 to limit the position. When it is retracted to the cylinder body of the electric cylinder 307, the telescopic rod of the electric cylinder 307 stops retracting.

[0044] The present invention is further described below through specific examples.

[0045] Example 1

[0046] like Figure 1-4 As shown, a self-cleaning carbon dioxide leak detector includes: a detector body 1, a cleaning mechanism 3 and a filtering mechanism 4, the detector body 1 has a detection chamber and an air inlet connected to the detection chamber, and the air inlet of the detector body 1 is connected to a connecting pipe 2; the cleaning mechanism 3 includes a mounting tube, a cleaning head 304, a motor 305 and an electric cylinder 307, the mounting tube is connected to the connecting tube 2 by threads, a first sealing ring 309 is arranged at the connection, the detection chamber is connected to the outside through the mounting tube, the shell of the electric cylinder 307 is connected to the upper end of the mounting tube, the telescopic end of the electric cylinder 307 is connected to the housing of the motor 305, the driving end of the motor 305 is connected to the cleaning head 304 and drives the cleaning head 304 to rotate, so as to clean the detection probe in the detector body 1; the filtering mechanism 4 has an air inlet and an air outlet, the air outlet of the filtering mechanism 4 is connected to the lower end of the mounting tube by threads, so as to filter out impurities in the gas to be detected, and a second sealing ring 403 is arranged at the connection between the mounting tube and the filtering mechanism 4.

[0047] The motor 305 is a micro motor, and the electric cylinder 307 is a micro electric cylinder.

[0048] The telescopic rod of the electric cylinder 307 is connected with a limiting device 306 . The limiting device 306 is located below the motor 305 . The limiting device 306 limits the telescopic distance of the telescopic rod of the electric cylinder 307 .

[0049] The mounting tube comprises a first threaded portion 301, a connecting ring 302 and a second threaded portion 303, the connecting ring 302 is fixedly connected between the first threaded portion 301 and the second threaded portion 303, the first threaded portion 301 is threadedly connected to the connecting tube 2, the second threaded portion 303 is threadedly connected to the filtering mechanism 4, an annular groove 310 is provided at the junction of the first threaded portion 301 and the connecting ring 302, the first sealing ring 309 is inserted into the annular groove 310, when the first threaded portion 301 is fully screwed into the connecting tube 2, the upper end face of the connecting ring 302 abuts against the lower end face of the connecting tube 2, when the second threaded portion 303 is fully threadedly connected to the filtering mechanism 4, the lower end face of the connecting ring 302 abuts against the upper end face of the filtering mechanism 4.

[0050] The filter mechanism 4 includes a filter tube 402 and a filter screen 404. The upper end of the filter tube 402 is threadedly connected to the second threaded portion 303 of the mounting tube, and the filter screen 404 is bolted to the lower end of the filter tube 402. By setting up double filtration, impurities and particulate matter in the air can be effectively filtered to prevent dust particles from entering the detector to block, damage or affect the sensitivity and accuracy of the detection probe, thereby improving the detection precision and accuracy, and also protecting the detection probe.

[0051] The filter tube 402 is filled with a filter element 401. After a period of use, the filter element 401 can be replaced to ensure the effectiveness of filtering.

[0052] An annular groove is formed on the outer periphery of the output shaft of the motor 305, and the cleaning head 304 is a cylindrical annular structure with an upper end opening. A snap ring is fixedly connected to the lower end of the cleaning head 304, and the snap ring is inserted into the annular groove. The snap ring is made of rubber and is fixed to the cleaning head 304 by bonding. The cleaning head 304 can be easily disassembled, assembled, or replaced.

[0053] A corresponding switch is arranged outside the detector to control the movement of the motor 305 and the electric cylinder 307. When the cleaning work is completed, the switch is operated to return the telescopic rod of the electric cylinder 307 to its original position.

[0054] When the detection probe needs to be cleaned, the corresponding switch is turned on, so that the motor 305 drives the cleaning head 304 to rotate, and at the same time, the telescopic rod of the electric cylinder 307 is extended, driving the motor 305 to move toward the detection probe until the detection probe is covered. As the cleaning head 304 rotates, impurities and contaminants on the surface of the detection probe are cleaned.

[0055] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0056] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0059] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0060] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A self-cleaning carbon dioxide leak detector, characterized in that: include: A detector body, the detector body having a detection chamber and an air inlet connected to the detection chamber, and the air inlet of the detector body is connected to a connecting pipe; A cleaning mechanism, the cleaning mechanism comprising a mounting tube, a cleaning head, a motor and a telescopic device, the mounting tube being detachably connected to the connecting tube, the detection chamber being connected to the outside through the mounting tube, the mounting tube having a first end and a second end in a radial direction, the housing of the telescopic device being connected to the first end of the mounting tube, the telescopic end of the telescopic device being connected to the housing of the motor, the driving end of the motor being connected to the cleaning head and driving the cleaning head to rotate, so as to clean the detection probe in the detector body; The filter mechanism has an air inlet and an air outlet, and the air outlet of the filter mechanism is detachably connected to the second end of the mounting tube to filter out impurities in the gas to be tested.

2. The self-cleaning carbon dioxide leak detector according to claim 1, characterized in that: The telescopic device is an electric cylinder, and the electric cylinder is detachably fixedly connected to the first end of the mounting tube through a fixing frame.

3. The self-cleaning carbon dioxide leak detector according to claim 1, characterized in that: The first end of the mounting tube is threadedly connected to the connecting tube, and a first sealing ring is provided at the connection between the mounting tube and the connecting tube. The second end of the mounting tube is threadedly connected to the filtering mechanism, and a second sealing ring is provided at the connection between the mounting tube and the filtering mechanism.

4. The self-cleaning carbon dioxide leak detector according to claim 2, characterized in that: A limiting device is connected to the telescopic rod of the electric cylinder. The limiting device is located below the motor and limits the telescopic distance of the telescopic rod of the electric cylinder.

5. The self-cleaning carbon dioxide leak detector according to claim 3, characterized in that: The mounting tube includes a first threaded portion, a connecting ring and a second threaded portion, the connecting ring is fixedly connected between the first threaded portion and the second threaded portion, the first threaded portion is threadedly connected to the connecting tube, the second threaded portion is threadedly connected to the filtering mechanism, an annular groove is provided at the junction of the first threaded portion and the connecting ring, the first sealing ring is inserted into the annular groove, when the first threaded portion is fully screwed into the connecting tube, the upper end face of the connecting ring abuts against the lower end face of the connecting tube, when the second threaded portion is fully threadedly connected to the filtering mechanism, the lower end face of the connecting ring abuts against the upper end face of the filtering mechanism.

6. The self-cleaning carbon dioxide leak detector according to claim 5, characterized in that: The filtering mechanism comprises a filtering tube and a filtering screen. The upper end of the filtering tube is threadedly connected to the second threaded portion of the mounting tube, and the filtering screen is detachably connected to the lower end of the filtering tube.

7. The self-cleaning carbon dioxide leak detector according to claim 6, characterized in that: The filter tube is filled with a filter element.

8. The self-cleaning carbon dioxide leak detector according to claim 1, characterized in that: The motor has an output shaft, an annular groove is formed on the outer periphery of the output shaft, a clamping ring is fixedly connected to the lower end of the cleaning head, and the clamping ring is clamped into the annular groove.

9. The self-cleaning carbon dioxide leak detector according to claim 1, characterized in that: The cleaning head is a cylindrical ring structure with an open upper end.

10. The self-cleaning carbon dioxide leak detector according to claim 4, characterized in that: The limiting device is in a cross structure and includes a sleeve and a limiting plate. The sleeve is sleeved on the telescopic rod of the electric cylinder and fixedly connected to the telescopic rod. Four limiting plates are provided and are evenly connected to the outer circumference of the sleeve.

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