A kind of waste gas detection device for environmental protection

Abstract

The utility model relates to exhaust gas detection technical field, concretely relates to a kind of exhaust gas detection device for environmental protection, comprising: main body, and the main body is provided with receiving groove and mounting groove;Air intake detection component, it includes air intake detection pipe, the air intake detection pipe one end is connected with detection unit, its other end is connected with extension hose, and the extension hose other end connects air intake dehumidification mechanism;Hose storage component, it includes the storage rod that is vertically and rotatably arranged in the center of the receiving groove, the storage rod is connected with the drive mechanism that it rotates, the storage rod outside is used for the limiting piece of fixed extension hose end portion and is arranged, by above setting, effectively improve applicability, greatly improve detection efficiency and detection accuracy, realize the neat storage of extension hose, both reduce space occupancy, also avoid the mutual entanglement, abrasion, deformation aging and other problems caused by disordered placement of extension hose.

Description

Technical Field

[0001] This utility model relates to an exhaust gas detection device for environmental protection, belonging to the field of exhaust gas detection technology. Background Technology

[0002] Exhaust gas detection devices are important equipment in the field of environmental monitoring, and are widely used for detecting the concentration of harmful gases (such as CO, CO2, SO2, etc.) in confined spaces such as industrial emissions, deep wells, and pipelines.

[0003] Chinese patent CN213658693U discloses a handheld workshop exhaust gas detector. However, when testing in special scenarios such as deep wells, the air inlet is directly integrated into the end of the casing, making it impossible to penetrate deep into the target area at the bottom of the well. Due to the significant stratification of gas within deep wells, high concentrations of harmful gases (such as CO2 and H2S) at the bottom cannot naturally diffuse to the wellhead. The device can only collect mixed gas near the wellhead and cannot obtain the true concentration data at the bottom of the well, resulting in seriously inaccurate test results. Therefore, researching a new type of exhaust gas detection device for environmental protection is of great practical significance. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing an environmentally friendly waste gas detection device, comprising: a main body, wherein the main body is provided with a storage groove and an installation groove;

[0005] An air intake detection assembly includes an air intake detection tube disposed in the mounting slot, one end of which is connected to a detection unit, and the other end of which extends out of the mounting slot and is connected to an extension hose, the other end of which is connected to an air intake dehumidification mechanism.

[0006] A hose storage assembly includes a storage rod that is upright and rotatably disposed at the center of the storage slot. The storage rod is connected to a drive mechanism that drives its rotation. A limiting member for fixing the end of the extension hose is disposed on the outside of the storage rod.

[0007] Furthermore, the drive mechanism includes a main gear and a secondary gear located at the bottom of the storage slot and meshing with each other. The main gear is fixed to the bottom of the storage slot by a bearing seat. A synchronously rotating wheel is provided on the upper surface of the main gear, and the wheel extends to the outside of the storage slot.

[0008] The auxiliary gear is fixed to the bottom of the storage slot by a bearing seat, and the bottom end of the storage rod is connected to the upper surface of the auxiliary gear. The auxiliary gear drives the storage rod to rotate synchronously.

[0009] The removable cover of the storage slot is equipped with a sealing cover, and the sealing cover has a through hole for the rotating wheel to pass through.

[0010] Furthermore, a rolling bearing is provided at the top of the storage rod, and a tube guide plate is fixed on the outer periphery of the rolling bearing. The tube guide plate has a notch for assisting in the extension hose retraction and extension. An extension hose storage space is formed between the guide plate and the secondary gear.

[0011] Furthermore, the top of the storage rod is tapered to form a snap-fit ​​step, and the rolling bearing is detachably sleeved on the storage rod, with the bottom surface of the rolling bearing abutting against the snap-fit ​​step.

[0012] Furthermore, the limiting member is disposed on the outer side of the portion of the receiving rod between the tube baffle and the secondary gear. The limiting member is a columnar structure, and its outer diameter is adapted to the inner diameter of the extension hose. When the extension hose is wound up, the end of the extension hose is inserted into the limiting member.

[0013] Furthermore, the air intake dehumidification mechanism includes a dehumidification cylinder, one end of which is connected to the extension hose, and the other end of which is connected to an air intake cylinder. The end of the air intake cylinder away from the dehumidification cylinder is the air intake end, which is inclined and has a filter.

[0014] Furthermore, the dehumidification cylinder is screwed to the air inlet cylinder, and a spiral heating element is detachably installed inside the dehumidification cylinder.

[0015] Furthermore, the inner wall of the dehumidification cylinder is provided with at least one docking groove, and both ends of the spiral heating element are connected to fixing plates. The two fixing plates are provided with the same number of docking seats as the docking groove on their outer sides, and the docking seats are inserted into the docking groove.

[0016] Furthermore, the inner wall of the dehumidifier cylinder is provided with four docking grooves in a ring array, and the outer sides of the two fixing plates are provided with four docking seats in a ring array. The fixing plates have a hollow structure, and the cross-sectional shape of the docking grooves and the docking seats are both isosceles trapezoids.

[0017] Furthermore, a miniature fan is provided on the air intake detection pipe, the miniature fan is fixed in the mounting groove, and the mounting groove is provided with a removable end cap.

[0018] The beneficial effects of this utility model are as follows: With this design, the content of exhaust gas at the bottom of the deep well can be detected without the need for operators and exhaust gas detection devices to go deep into the well. This avoids problems such as bumps and moisture damage to the device caused by the complex environment inside the deep well. At the same time, it effectively improves applicability and greatly improves detection efficiency and accuracy. Secondly, the above design enables the neat storage of the extension hose, which reduces space occupation and avoids problems such as tangling, wear, deformation and aging caused by disorderly placement of the extension hose, effectively extending its service life. Moreover, the entire winding process is convenient to operate and easy to retrieve next time, effectively improving the efficiency of post-use organization. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the exhaust gas detection device provided in Embodiment 1 of this utility model;

[0020] Figure 2 This is a schematic diagram of the disassembled structure of the exhaust gas detection device provided in Embodiment 1 of this utility model.

[0021] Figure 3 This is a schematic diagram of the exhaust gas detection device provided in Embodiment 1 of this utility model after disassembly, from another perspective.

[0022] Figure 4 This is a partial structural diagram of the exhaust gas detection device provided in Embodiment 1 of this utility model;

[0023] Figure 5 This is an exploded structural diagram of the air intake dehumidification mechanism provided in Embodiment 1 of this utility model;

[0024] Figure 6 This is an exploded view of the air intake dehumidification mechanism provided in Embodiment 1 of this utility model.

[0025] Figure 7 This is a partial structural diagram of the air intake dehumidification mechanism provided in Embodiment 1 of this utility model.

[0026] Reference numerals: 1. Main body; 2. Hose storage assembly; 21. Storage slot; 22. Secondary gear; 23. Storage rod; 24. Limiting component; 25. Hose guide plate; 251. Notch; 252. Rolling bearing; 26. Main gear; 27. Rotary wheel; 28. Sealing cover; 3. Mounting slot; 4. Miniature fan; 5. Air intake detection pipe; 6. Extension hose; 7. Air intake dehumidification mechanism; 71. Air intake cylinder; 72. Filter plate; 73. Spiral heating plate; 731. Fixing plate; 732. Connecting seat; 74. Dehumidification cylinder; 75. Connecting slot. Detailed Implementation

[0027] The specific embodiments of this utility model are described in detail below. This utility model can be implemented in many ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used is for describing particular embodiments only and is not intended to limit the scope of this invention.

[0029] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Example 1

[0032] like Figure 1-4As shown, this utility model provides an environmentally friendly waste gas detection device, comprising: a main body 1, on which a receiving groove 21 and a mounting groove 3 are provided, the receiving groove 21 and the mounting groove 3 being disposed on the back of the main body 1, and the two grooves can be arranged adjacently or separately; an air intake detection component, comprising an air intake detection pipe 5 disposed in the mounting groove 3, one end of the air intake detection pipe 5 being connected to a detection unit, and the other end extending out of the mounting groove 3 and connected to an extension hose 6, the other end of the extension hose 6 being connected to an air intake dehumidification mechanism 7, the extension hose 6 being made of polyurethane or fluororubber material, the waste gas to be detected sequentially passing through the air intake dehumidification mechanism 7-extension hose 6-air intake detection pipe 5, and then entering the detection unit for detection. Regarding the detection, it should be noted that the air intake detection pipe 5 is connected to the detection unit and the extension hose 6 via a compression fitting or clamp. The extension hose 6 is connected to the air intake dehumidification mechanism 7 via a compression fitting or clamp. In other embodiments, connection methods well known to those skilled in the art can also be used, such as plug-in connections, which will not be elaborated here. The detection unit adopts the non-dispersive infrared absorption method, which works based on the selective absorption characteristics of different gases to infrared light of specific wavelengths. By calculating the attenuation of light intensity, the concentration of the target exhaust gas component can be calculated in reverse. This detection method is well known to those skilled in the art. In other embodiments, other forms of detection methods can also be used, which will not be elaborated here.

[0033] The hose storage assembly 2 includes a storage rod 23 that is upright and rotatably disposed at the center of the storage slot 21. The storage rod 23 is connected to a drive mechanism that drives its rotation. A limiting member 24 for fixing the end of the extension hose 6 is disposed on the outside of the storage rod 23. After the exhaust gas detection is completed, the extension hose 6 and the intake dehumidification mechanism 7 are removed. The end of the extension hose 6 is inserted into the limiting member 24. Then, the storage rod 23 is driven to rotate by the drive mechanism, so that the extension hose 6 is wound around the storage rod 23. At this point, the extension hose 6 is wound up and stored in the storage slot 21. This setup eliminates the need for operators and exhaust gas detection devices to penetrate deep into the well, enabling the detection of exhaust gas content at the bottom of the well. It avoids damage caused by impacts and moisture in the complex environment of the deep well, while also significantly improving applicability, detection efficiency, and accuracy. Furthermore, this setup allows for the neat storage of the extension hose 6, reducing space occupancy and preventing problems such as tangling, wear, deformation, and aging caused by disordered placement, thus extending its service life. The entire winding process is also convenient and allows for quick retrieval next time, effectively improving post-use organization efficiency.

[0034] Specifically, such as Figure 2-4As shown, the driving mechanism includes a main gear 26 and a secondary gear 22 located at the bottom of the storage groove 21 and meshing with each other. The main gear 26 is fixed to the bottom of the storage groove 21 by a bearing seat. A synchronously rotating wheel 27 is provided on the upper surface of the main gear 26, and the wheel 27 extends to the outside of the storage groove 21. The secondary gear 22 is fixed to the bottom of the storage groove 21 by a bearing seat. The bottom end of the storage rod 23 is connected to the upper surface of the secondary gear 22, and the secondary gear 22 drives the storage rod 23 to rotate synchronously. A sealing cover 28 is detachably provided on the storage groove 21. The sealing cover 28 has a through hole for the wheel 27 to pass through. It should be noted that the bearing seat is screwed to the bottom of the storage groove 21, and the wheel 27 is... 27 is connected to the main gear 26 by welding, bonding, or screwing. The side wall of the storage groove 21 is provided with screw posts, and the sealing cover 28 is provided in the storage groove 21 by screwing the screw cover in the screw posts. By turning the rotating wheel 27, the main gear 26 is driven to rotate, which in turn drives the secondary gear 22 to rotate, thereby causing the storage rod 23 to rotate synchronously to complete the winding operation of the extension hose 6. By setting the sealing cover 28, external dust, moisture and other pollutants can be isolated, keeping the extension hose 6 and the storage groove 21 clean and dry, and further improving the structural integrity of the device. Moreover, the gear meshing drive ensures precise transmission of driving force and uniform winding force, effectively preventing the extension hose 6 from being overstretched and damaged due to uneven force.

[0035] Specifically, such as Figure 4 As shown, a rolling bearing 252 is provided at the top of the storage rod 23. A tube guide plate 25 is fixedly provided on the outer periphery of the rolling bearing 252. A notch 251 for assisting in the extension hose 6 is provided on the tube guide plate 25. A storage space for the extension hose 6 is formed between the guide plate and the secondary gear 22. The tube guide plate 25 and the rolling bearing 252 are fixed by welding or bonding. The outer diameter of the tube guide plate 25 is smaller than the inner diameter of the storage groove 21, and the outer circumference of the tube guide plate 25 extends into the storage groove 21. The distance between the walls is greater than the outer diameter of the extension hose 6. By setting the hose guide plate 25, when the extension hose 6 is being wound up, the extension hose 6 is placed in the notch 251 of the hose guide plate 25. Due to the resistance of the extension hose 6, the hose guide plate 25 will not rotate with the storage rod 23. The notch 251 can guide and position the extension hose 6, prevent the extension hose 6 from moving and being squeezed between adjacent layers, and ensure that the extension hose 6 can be wound into a neat coil, further avoiding the problem of winding disorder.

[0036] Specifically, the top of the storage rod 23 has a tapered end forming a snap-fit ​​step. The rolling bearing 252 is detachably sleeved on the storage rod 23, and the bottom surface of the rolling bearing 252 abuts against the snap-fit ​​step. This design ensures that the extension hose 6 is guided and positioned during the winding process. Furthermore, when the extension hose 6 needs to be removed for installation, the hose retainer 25 can be easily removed, allowing for quick and easy removal of the extension hose 6, effectively improving installation efficiency and ease of use.

[0037] Specifically, to ensure that the extension hose 6 has a firm point of force when it is wound up, the limiting member 24 is disposed on the outside of the portion of the receiving rod 23 between the tube guide plate 25 and the secondary gear 22. The limiting member 24 is a columnar structure, and its outer diameter is adapted to the inner diameter of the extension hose 6. When the extension hose 6 is wound up, the end of the extension hose 6 is inserted into the limiting member 24.

[0038] Specifically, such as Figure 5-7 As shown, the air intake dehumidification mechanism 7 includes a dehumidification cylinder 74. One end of the dehumidification cylinder 74 is connected to the extension hose 6, and the other end is connected to an air intake cylinder 71. The end of the air intake cylinder 71 away from the dehumidification cylinder 74 is the air intake end. The air intake end is inclined and is equipped with a filter 72. By inclining the air intake end, the direct inflow of water droplets falling freely in the deep well can be effectively reduced. At the same time, the filter 72 connected to its end can filter large dust particles, particulate matter, and other impurities in the deep well gas, preventing impurities from entering the dehumidification cylinder 74 or even the inside of the detection device, preventing component blockage or detection unit contamination, and ensuring smooth gas flow and detection accuracy.

[0039] Specifically, such as Figure 5-7 As shown, the dehumidification cylinder 74 is screwed to the air inlet cylinder 71, and a spiral heating element 73 is detachably installed inside the dehumidification cylinder 74. This design ensures airtightness and facilitates subsequent maintenance and replacement of the spiral heating element 73. By installing the spiral heating element 73, a dehumidification effect is achieved. When gas flows through the electrically heated spiral heating element 73, the moisture it contains evaporates, thereby significantly reducing the humidity of the gas entering the subsequent detection unit and further ensuring detection accuracy.

[0040] Specifically, such as Figure 5-7 As shown, the inner wall of the dehumidification cylinder 74 is provided with at least one docking groove 75. Both ends of the spiral heating element 73 are connected to fixing pieces 731. The outer side of the two fixing pieces 731 is provided with the same number of docking seats 732 as the docking groove 75. The docking seats 732 are inserted into the docking groove 75. The two fixing pieces 731 are connected to the spiral heating element 73 by adhesive bonding. The spiral heating element 73 can be quickly installed and removed by simple insertion and removal actions, which further improves maintenance efficiency.

[0041] Specifically, such as Figure 5-7 As shown, the inner wall of the dehumidification cylinder 74 is provided with four docking grooves 75 in a ring array, and the outer sides of the two fixing plates 731 are provided with four docking seats 732 in a ring array. The fixing plates 731 have a hollow structure, and the cross-sectional shape of the docking grooves 75 and the docking seats 732 are both isosceles trapezoids. This design ensures that gas can flow smoothly in and out of the dehumidification cylinder 74, while also forming a stable limit after installation. It can effectively resist the vibration and impact generated during the carrying or use of the equipment, prevent the spiral heating element 73 from loosening or shifting, and effectively improve the stability of use.

[0042] Specifically, such as Figure 2 , 3 As shown, a miniature fan 4 is installed on the air intake detection pipe 5. The miniature fan 4 is fixed in the mounting groove 3. The mounting groove 3 is detachably covered with an end cap. It should be noted that the miniature fan 4 is fixed by a U-shaped slot in the mounting groove 3, or by screwing, bonding or other methods. The miniature fan 4 plays a role in forced airflow, which effectively shortens the transmission time of gas from the sampling point to the detection point. This helps to capture the transient peak value of harmful gas concentration at the bottom of the deep well in a timely manner, and further improves the detection efficiency and accuracy.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are exhaustively listed. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] For those skilled in the art, various modifications and improvements can be made without departing from the concept of this utility model, and these modifications and improvements are all within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims.

Claims

1. A waste gas detection device for environmental protection, characterized in that, include: The main body is provided with a storage slot and a mounting slot; An air intake detection assembly includes an air intake detection tube disposed in the mounting slot, one end of which is connected to a detection unit, and the other end of which extends out of the mounting slot and is connected to an extension hose, the other end of which is connected to an air intake dehumidification mechanism. A hose storage assembly includes a storage rod that is upright and rotatably disposed at the center of the storage slot. The storage rod is connected to a drive mechanism that drives its rotation. A limiting member for fixing the end of the extension hose is disposed on the outside of the storage rod.

2. The waste gas detection device for environmental protection according to claim 1, characterized in that, The drive mechanism includes a main gear and a secondary gear located at the bottom of the storage slot and meshing with each other. The main gear is fixed to the bottom of the storage slot by a bearing seat. A synchronously rotating wheel is provided on the upper surface of the main gear, and the wheel extends to the outside of the storage slot. The auxiliary gear is fixed to the bottom of the storage slot by a bearing seat, and the bottom end of the storage rod is connected to the upper surface of the auxiliary gear. The auxiliary gear drives the storage rod to rotate synchronously. The removable cover of the storage slot is equipped with a sealing cover, and the sealing cover has a through hole for the rotating wheel to pass through.

3. The waste gas detection device for environmental protection according to claim 2, characterized in that, The top of the storage rod is provided with a rolling bearing, and a tube guide plate is fixed on the outer periphery of the rolling bearing. The tube guide plate has a notch for assisting in the extension hose retraction and extension. An extension hose storage space is formed between the guide plate and the secondary gear.

4. The waste gas detection device for environmental protection according to claim 3, characterized in that, The top of the storage rod is tapered to form a snap-fit ​​step, and the rolling bearing is detachably sleeved on the storage rod, with the bottom surface of the rolling bearing abutting against the snap-fit ​​step.

5. The waste gas detection device for environmental protection according to claim 4, characterized in that, The limiting member is located on the outside of the portion of the storage rod between the tube baffle and the secondary gear. The limiting member is a columnar structure with an outer diameter that matches the inner diameter of the extension hose. When the extension hose is wound up, the end of the extension hose is inserted into the limiting member.

6. A waste gas detection device for environmental protection according to any one of claims 1-5, characterized in that, The air intake dehumidification mechanism includes a dehumidification cylinder, one end of which is connected to the extension hose, and the other end of which is connected to an air intake cylinder. The end of the air intake cylinder away from the dehumidification cylinder is the air intake end. The air intake end is inclined and is equipped with a filter.

7. The waste gas detection device for environmental protection according to claim 6, characterized in that, The dehumidifier cylinder is screwed to the air inlet cylinder, and a spiral heating element is detachably installed inside the dehumidifier cylinder.

8. The waste gas detection device for environmental protection according to claim 7, characterized in that, The inner wall of the dehumidification cylinder is provided with at least one docking groove. Both ends of the spiral heating element are connected to fixing plates. The outer sides of the two fixing plates are provided with the same number of docking seats as the docking groove. The docking seats are inserted into the docking groove.

9. A waste gas detection device for environmental protection according to claim 8, characterized in that, The inner wall of the dehumidifier cylinder is provided with four docking grooves in a ring array, and the outer sides of the two fixing plates are provided with four docking seats in a ring array. The fixing plates are hollow structures, and the cross-sectional shape of the docking grooves and the docking seats are both isosceles trapezoids.

10. A waste gas detection device for environmental protection according to claim 8, characterized in that, A miniature fan is installed on the air intake detection pipe. The miniature fan is fixed in the mounting slot, and the mounting slot is detachably covered with an end cap.

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