A portable flue gas monitor

Abstract

The utility model belongs to flue gas monitor technical field, concretely relates to a portable flue gas monitor, including flue gas monitor body, the bottom of flue gas monitor body is provided with the U-shaped board, the inside fixed support of U-shaped board has the support rod, the top of support rod is fixed with the bearing plate, and the both ends of bearing plate are all installed with the limit board, and two limit boards are fixedly connected with the both ends of bearing plate respectively. Flue gas monitor body is placed on the top of bearing plate, and the inside of U-shaped board is rotatably connected with two rotating columns, the outside of rotating column is fixed with the connecting plate, the side away from rotating column of connecting plate is fixed with the protective cover, and two protective covers are symmetrically arranged. The utility model is through with the support and protection structure of flue gas monitor body split setting, realizes the support, the limit and the protection of flue gas monitor body, does not add the hole position or the adhesion on the flue gas monitor body shell, avoids the intensity attenuation caused by stress concentration and environmental aging, ensures the original machine function and state are not influenced.

Description

Technical Field

[0001] This utility model belongs to the technical field of flue gas monitoring instruments, specifically relating to a portable flue gas monitoring instrument. Background Technology

[0002] Flue gas monitors are a type of professional instrument that focuses on the detection and analysis of the concentration of harmful components in the air (including smoke, gaseous pollutants, and suspended particulate matter). When in use: the sampling device is responsible for accurately collecting the flue gas sample to be tested; the sensor module achieves specific identification and concentration sensing for different pollutants (such as sulfur dioxide, nitrogen oxides, and particulate matter); and the data processing system analyzes, calibrates, and generates standardized monitoring data from the raw signals acquired by the sensors.

[0003] A search revealed a portable flue gas monitor, as disclosed in Chinese Patent CN221710263U. This monitor includes a housing containing a flue gas monitor body. Four racks are fixedly connected to the outer wall of the monitor body. Four first mounting slots are provided at the top of the housing. Two first fixing plates are fixedly connected to the outer wall of each first mounting slot. A round rod is rotatably inserted through each of the two first fixing plates. The same gear is fixedly connected to the two round rods on their closest sides, meshing with the racks. The gear is located within the first mounting slots. Second fixing plates are fixedly connected to the two round rods on their furthest sides. A single cover is fixedly connected to the top of the four second fixing plates on the same side.

[0004] When the above device is used, it raises the flue gas monitor body while moving the two box covers away from the top of the box, which makes the operation simple, makes it easy to take out the flue gas monitor body, reduces the workload of the staff, and improves the efficiency of the work.

[0005] However, the main body shell of the monitoring device is mostly made of ABS, PC engineering plastic or thin aluminum alloy, and its structural design relies on an integrated continuous shell to disperse external forces such as transportation collisions and placement compression.

[0006] The aforementioned device, which fixes the rack to the outer wall of the monitoring instrument body by drilling, tapping, riveting, or gluing, will disrupt the continuous force path and introduce the following risks:

[0007] Stress concentration and strength attenuation: Drilling and tapping create holes and gaps in the outer shell, causing external forces to concentrate at the edge of the holes, reducing impact resistance and making them prone to becoming weak points in the structure.

[0008] Weak points overlap: Multiple racks are distributed on multiple surfaces, requiring multiple openings and treatments, which disrupts the overall force balance, making them more prone to deformation and cracking when transported, tilted, or subjected to local pressure.

[0009] Aging of the adhesive surface: The surface of the outer shell (coating, oxide layer) needs to be polished for bonding, which damages the original protective and fatigue-resistant layer; thermal expansion and contraction and micro-vibration will cause cracks to start from the edges and gradually expand.

[0010] Environmental degradation: High temperatures soften plastics, dust abrades crevices, and liquids entering holes cause corrosion and embrittlement of metal hole walls, all of which accelerate crack propagation.

[0011] Accidental external forces and human-machine risks: The protruding rack is easily bumped or squeezed, and instantaneous lateral impacts directly act on the weak points; at the same time, there is a safety hazard of scraping the hand or interfering with surrounding equipment.

[0012] Functionality and reliability are affected: Modifications may obstruct sampling, drainage, interfaces and heat dissipation channels, damage the original machine's seals and thermal management, and increase maintenance and compliance risks. Utility Model Content

[0013] The purpose of this utility model is to provide a portable flue gas monitor. Through a protective and support structure that is separately set from the main body of the flue gas monitor, the monitor can be supported, limited and protected without adding holes or adhesives to the outer shell of the monitor. This avoids stress concentration and strength decay caused by environmental aging, and ensures that the original function and status are not affected.

[0014] The specific technical solution adopted by this utility model is as follows:

[0015] A portable flue gas monitor includes a flue gas monitor body. A U-shaped plate is provided at the bottom of the flue gas monitor body. A support rod is fixed inside the U-shaped plate. A bearing plate is fixed at the top of the support rod. Limiting plates are installed at both ends of the bearing plate. The two limiting plates are respectively fixedly connected to the two ends of the bearing plate.

[0016] The flue gas monitor body is placed on top of the support plate. Two rotating columns are rotatably connected to the inner side of the U-shaped plate. A connecting plate is fixed to the outer side of the rotating columns. A protective cover is fixed to the side of the connecting plate away from the rotating columns. The two protective covers are symmetrically arranged. A sealing strip is installed on the side of the two protective covers that are close to each other. A protective space is formed inside the two protective covers. The flue gas monitor body is located inside the two protective covers. A limit block is installed on the side of the two protective covers that are close to each other.

[0017] The inner side of the U-shaped plate is also provided with a drive assembly for driving the two rotating columns to rotate in opposite directions.

[0018] The drive assembly includes a servo motor mounted on the inner side of the U-shaped plate. The output end of the servo motor is fixedly connected to one of the rotating columns. A first gear is fixed on the outer side of the rotating column. A linkage shaft is rotatably connected to the inner side of the U-shaped plate. Two second gears are fixed on the outer side of the linkage shaft. One of the second gears meshes with one of the first gears, and the other second gear is connected to the other first gear via a belt.

[0019] The technical effects achieved by this utility model are as follows:

[0020] This utility model achieves support, limitation and protection of the flue gas monitor body by setting the protective and support structure separately from the flue gas monitor body. It does not add new holes or adhesives to the outer shell of the flue gas monitor body, avoids strength decay caused by stress concentration and environmental aging, and ensures that the original function and status are not affected. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure on the U-shaped plate in this utility model;

[0023] Figure 3 This is a schematic diagram of the rotation of the two protective covers in this utility model;

[0024] Figure 4 This is a schematic diagram showing the position of the flue gas monitor body in this utility model;

[0025] Figure 5 This is a schematic diagram of the position of the limiting block in this utility model;

[0026] Figure 6 This is a schematic diagram of the structure on the rotating column in this utility model;

[0027] Figure 7 This is a schematic diagram of the structure on the support rod in this utility model.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Flue gas monitor body; 2. U-shaped plate; 3. Support rod; 4. Bearing plate; 5. Support base; 6. Rotating column; 7. First gear; 8. Connecting plate; 9. Protective cover; 10. Sealing strip; 11. Servo motor; 12. Linkage shaft; 13. Second gear; 14. Electric telescopic rod; 15. Slide plate; 16. Limiting plate; 17. Limiting block; 18. Flexible dust cover. Detailed Implementation

[0030] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0031] Example 1:

[0032] like Figure 1-7 As shown, a portable flue gas monitor includes a flue gas monitor body 1 and a U-shaped plate 2. The U-shaped plate 2 is located at the bottom of the flue gas monitor body 1. Four universal brake wheels are installed at the bottom of the U-shaped plate 2, and a buffer pad is provided between the universal brake wheels and the U-shaped plate 2. The flue gas monitor body 1 can be moved conveniently by the universal brake wheels, and the buffer pad can reduce shock during movement.

[0033] A support rod 3 is fixed inside the U-shaped plate 2, and a bearing plate 4 is fixed on the top of the support rod 3. The support rod 3 and the bearing plate 4 together form a platform for placing the flue gas monitor body 1.

[0034] Limiting plates 16 are fixed at both ends of the support plate 4. The flue gas monitor body 1 is placed on the top of the support plate 4 and is located between the two limiting plates 16. The limiting plates 16 restrict the flue gas monitor body 1 from sliding laterally along the support plate 4.

[0035] Two rotating columns 6 are provided on the inner side of the U-shaped plate 2, and one end of the two rotating columns 6 is rotatably connected to the inner wall of the U-shaped plate 2. A connecting plate 8 is fixed on the outer side of the rotating columns 6. A protective cover 9 is fixed on the side of the connecting plate 8 away from the rotating columns 6. The protective cover 9 is hollow and has an opening on one side.

[0036] To enhance the connection stability between the protective cover 9 and the rotating column 6, two connecting plates 8 are provided, and both connecting plates 8 are fixedly connected to the protective cover 9.

[0037] The two protective covers 9 are symmetrically arranged, specifically: the openings of the two protective covers 9 are arranged opposite each other, and a protective space is formed inside the two protective covers 9. The flue gas monitor body 1 is located inside the two protective covers 9.

[0038] Sealing strips 10 are installed on the side of the two protective covers 9 that are close to each other. The two symmetrical protective covers 9 form a closed protective space. The sealing strips 10 improve the protective sealing performance and can effectively block dust and water vapor from entering the flue gas monitor body 1, thus avoiding damage to the components. A drive component is set inside the U-shaped plate 2.

[0039] See attached document Figure 2 - Appendix Figure 6The drive assembly includes a servo motor 11 installed inside the U-shaped plate 2. The output end of the servo motor 11 is fixedly connected to one of the rotating columns 6. A linkage shaft 12 is also rotatably connected to the inside of the U-shaped plate 2. Two second gears 13 are fixed to the outside of the linkage shaft 12, and a first gear 7 is fixed to the outside of the rotating column 6.

[0040] The two first gears 7 are staggered along the axial direction, specifically: the two first gears 7 are not on the same axial plane outside the rotating column 6, and the two first gears 7 are spaced apart along the axial direction of the two rotating columns 6 respectively;

[0041] One of the first gears 7 directly meshes with a second gear 13 on the linkage shaft 12, while the other first gear 7 is driven by another second gear 13 on the linkage shaft 12 via a belt. The two first gears 7 are misaligned in the axial direction to avoid interference between the first gear 7 and the second gear 13, ensuring that the combination structure of meshing transmission and belt transmission can operate stably and without conflict, and realizing the opposite synchronous rotation of the two rotating columns 6.

[0042] When using:

[0043] The servo motor 11 is started, and its output rotates forward, driving the connected rotating column 6 to rotate. The first gear 7 on the rotating column 6 synchronously drives a second gear 13 on the linkage shaft 12 to rotate. The linkage shaft 12 then drives another second gear 13 to rotate, and through belt transmission, causes the first gear 7 on the other rotating column 6 to rotate in the opposite direction. Finally, the two rotating columns 6 rotate synchronously in opposite directions, causing the two protective covers 9 to rotate and open away from the flue gas monitor body 1, thus completely exposing the flue gas monitor body 1.

[0044] At this time, the flue gas monitor body 1 can be operated directly on the support plate 4 to monitor the flue gas, or the flue gas monitor body 1 can be manually removed from the support plate 4 and used flexibly at the designated location on site.

[0045] After use, place the flue gas monitor body 1 back on top of the support plate 4, start the servo motor 11, and the output of the servo motor 11 reverses, driving the two rotating columns 6 to rotate synchronously in opposite directions, so that the protective cover 9 resets and closes. At this time, the sealing strips 10 fit tightly against each other, the two limit plates 16 restrict the lateral movement of the flue gas monitor body 1 along the support plate 4, and the two protective covers 9 constrain the longitudinal displacement of the flue gas monitor body 1. At the same time, the protective covers 9 form a closed protective space, achieving comprehensive protection for the flue gas monitor body 1.

[0046] In summary, this utility model enables the two protective covers 9 to open and close automatically towards each other through a drive component, without manual intervention, and forms an outer cover seal with the sealing strip 10, thereby improving dust and splash resistance and long-term sealing reliability.

[0047] The limiting plate 16 and the limiting block 17 constrain the lateral and longitudinal displacement of the flue gas monitor body 1, reduce the transmission of vibration during handling, reduce impact damage to components, and improve the operational reliability of the equipment in mobile scenarios.

[0048] In addition, a protective and support structure is adopted that is separate from the flue gas monitor body 1 to support, limit and protect the flue gas monitor body 1. No new holes or adhesives are added to the outer shell of the flue gas monitor body 1, thus avoiding stress concentration and surface damage that could lead to strength attenuation and ensuring that the original function and condition of the device are not affected.

[0049] See attached document Figure 5 To improve the limiting effect on the flue gas monitor body 1, limit blocks 17 are installed on the side of the two protective covers 9 that are close to each other. The limit blocks 17 are made of elastic materials such as rubber or silicone. When the two protective covers 9 are closed, the elastic limit blocks 17 are tightly pressed against the outer shell of the flue gas monitor body 1. The displacement of the flue gas monitor body 1 is limited by friction, which prevents the flue gas monitor body 1 from shaking during movement. The limit blocks 17 can also absorb the impact force when the equipment moves or is slightly bumped, reducing the impact of vibration on the precision components inside the flue gas monitor body 1.

[0050] See attached document Figure 2 and attached Figure 5 To reduce the concentration of force on the rotating column 6, a support base 5 is rotatably connected to the outer side of the rotating column 6. The bottom of the support base 5 is fixedly connected to the U-shaped plate 2. The support base 5 can provide support for the rotating column 6, disperse and reduce the load of the rotating column 6 on the inner wall of the U-shaped plate 2 and the output end of the servo motor 11. This avoids deformation of the rotating column 6 due to concentrated force at a single point after long-term use, or wear and jamming of the output end of the servo motor 11 due to overload.

[0051] See attached document Figure 1 and 2 Flexible dust covers 18 are installed on the outside of the two protective covers 9, and the flexible dust covers 18 are fixedly connected to the protective covers 9. The flexible dust covers 18 are fitted on the outside of the U-shaped plate 2, and the flexible dust covers 18 are fixedly connected to the outside of the U-shaped plate 2.

[0052] The flexible dust cover 18 is made of flexible materials such as canvas or elastic plastic. The flexible dust cover 18 can deform freely with the opening and closing of the protective cover 9. When the protective cover 9 is closed, the flexible dust cover 18 completely covers the outside of the U-shaped plate 2, blocking external dust and debris from entering the inside of the U-shaped plate 2, and preventing dust from adhering to the surface of components such as the first gear 7, the second gear 13, and the belt, thus ensuring the long-term stable operation of the components inside the U-shaped plate 2.

[0053] Example 2:

[0054] See attached document Figure 5 and attached Figure 7This embodiment is an improvement on embodiment 1. The only difference between this embodiment and embodiment 1 is that an electric telescopic rod 14 is installed on the inner side of the U-shaped plate 2, a slide plate 15 is fixed to the output end of the electric telescopic rod 14, and two limiting plates 16 are respectively fixed to the two ends of the top of the slide plate 15.

[0055] The slide plate 15 has a sliding hole, and the support rod 3 passes through the sliding hole. The slide plate 15 and the support rod 3 are slidably connected through the sliding hole.

[0056] When in use, the electric telescopic rod 14 operates, driving the slide plate 15 to slide up and down along the support rod 3, thereby driving the limit plate 16 to rise and fall.

[0057] When it is necessary to remove the flue gas monitor body 1, the electric telescopic rod 14 operates, the slide plate 15 moves down, the limiting plate 16 moves away from the flue gas monitor body 1, the lateral limit is released, and the flue gas monitor body 1 can be removed from the bearing plate 4 in any direction without being restricted by the limiting plate 16.

[0058] After the flue gas monitor body 1 is put back, the electric telescopic rod 14 operates again, the slide plate 15 resets, and the limiting plate 16 re-limits the flue gas monitor body 1 laterally, taking into account both ease of removal and stability of placement.

[0059] An independent power supply and control unit are also configured inside the U-shaped plate 2. The servo motor 11 and the electric telescopic rod 14 are electrically connected to the independent power supply and the control unit, respectively, to realize power supply and motion control. It should be noted that the servo motor 11, the electric telescopic rod 14, the independent power supply, the control unit, and the flue gas monitor body 1 all belong to the scope of existing mature technology. Their specific structure, working principle, and conventional circuit connection methods have been fully disclosed in the prior art. Therefore, the details of the above components will not be described in detail in this embodiment.

[0060] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A portable flue gas monitor, comprising a flue gas monitor body (1), characterized in that: The bottom of the flue gas monitor body (1) is provided with a U-shaped plate (2), a support rod (3) is fixed inside the U-shaped plate (2), a bearing plate (4) is fixed at the top of the support rod (3), and limit plates (16) are installed at both ends of the bearing plate (4). The flue gas monitor body (1) is placed on the top of the bearing plate (4). Two rotating columns (6) are rotatably connected to the inner side of the U-shaped plate (2). A connecting plate (8) is fixed to the outer side of the rotating columns (6). A protective cover (9) is fixed to the side of the connecting plate (8) away from the rotating columns (6). The two protective covers (9) are symmetrically arranged. A sealing strip (10) is installed on the side of the two protective covers (9) that are close to each other. A protective space is formed inside the two protective covers (9). The flue gas monitor body (1) is located inside the two protective covers (9). A drive assembly for driving the two rotating columns (6) to rotate in opposite directions is also provided inside the U-shaped plate (2).

2. The portable flue gas monitor according to claim 1, characterized in that: The drive assembly includes a servo motor (11) installed inside the U-shaped plate (2). The output end of the servo motor (11) is fixedly connected to one of the rotating columns (6). A first gear (7) is fixed on the outer side of the rotating column (6), and the two first gears (7) are staggered. A linkage shaft (12) is also rotatably connected to the inner side of the U-shaped plate (2). Two second gears (13) are fixed on the outer side of the linkage shaft (12). One of the second gears (13) meshes with one of the first gears (7), and the other second gear (13) is connected to the other first gear (7) by a belt.

3. A portable flue gas monitor according to claim 1, characterized in that: Limiting blocks (17) are installed on the side of the two protective covers (9) that are close to each other, and the limiting blocks (17) are made of elastic material.

4. A portable flue gas monitor according to claim 1, characterized in that: The outer side of the rotating column (6) is rotatably connected to a support base (5), and the bottom of the support base (5) is fixedly connected to the U-shaped plate (2).

5. A portable flue gas monitor according to claim 1, characterized in that: Flexible dust covers (18) are installed on the outside of the two protective covers (9), and the flexible dust covers (18) are fitted on the outside of the U-shaped plate (2).

6. A portable flue gas monitor according to claim 1, characterized in that: The two limiting plates (16) are fixedly connected to both ends of the bearing plate (4).

7. A portable flue gas monitor according to claim 1, characterized in that: An electric telescopic rod (14) is installed on the inner side of the U-shaped plate (2). The output end of the electric telescopic rod (14) is fixed with a slide plate (15) that is slidably connected to the support rod (3). The two limiting plates (16) are respectively fixed at both ends of the top of the slide plate (15).

Images