An air quality monitoring device for an engineering construction section

Abstract

The utility model discloses an engineering construction section air quality monitoring devices, including the cylinder, the cylinder top is equipped with the cover, and the cover can be detached through the bolt fixed, and the cylinder inside is equipped with the baffle and the filter cylinder, the cylinder one side is equipped with the intercommunication air extractor, the cylinder top inner wall is equipped with the support platform, and the baffle is equipped with the pivot, and the pivot swing joint cylinder bottom wall, and the cylinder bottom wall is equipped with the motor fixed through the motor base, and the motor shaft connects the pivot and drives its rotation, and the baffle side edge sticks the cylinder inner wall, and the baffle top is equipped with the fixed connection sealing board, and the sealing board is located on the support platform, and the sealing board top is equipped with the monitor fixed through the mounting bracket, and the baffle cooperation sealing board divides the cylinder into the separate isolated storehouse. The utility model can complete the quick switching of filter cylinder under the condition of uninterrupted monitoring, and the environment and state of stable air monitoring are improved, and the accuracy of detection data is improved.

Description

Technical Field

[0001] This utility model belongs to the field of environmental monitoring technology, and specifically relates to an air quality monitoring device for engineering construction sections. Background Technology

[0002] The dust, exhaust gas, and other pollutants generated during construction have a serious impact on the surrounding environment. Air quality monitoring devices on the market have short maintenance intervals, require frequent internal cleaning, and have poor dust protection. This is especially true for monitoring the air in construction areas, where dust and debris are abundant and the environment is relatively complex. Large dust particles can easily adhere to or cover the protective filter of the monitoring device, causing the filter to be covered by large dust particles. Subsequent air cannot easily re-enter the monitoring device, and the sensor probe of the monitoring device cannot make sufficient contact with the air, which can easily affect the monitoring results.

[0003] A search revealed an existing industrial waste gas monitoring device with publication number CN217981384U. The device uses a sealing ring located at the bottom of the filter cartridge to create a seal, ensuring that all the gas to be measured is effectively filtered through the filter cartridge and the second filter element. This effectively guarantees the normal operation of the waste gas monitor and pneumatic components, reducing the adhesion of large dust particles and lint to these components and ultimately shortening the equipment's lifespan. However, even with prolonged use, lint can still adhere to the surface of the air inlet, significantly reducing the air intake at the waste gas monitor, causing distorted monitoring results or instability in the monitoring process. Furthermore, replacing the filter cartridge and the second filter element is relatively cumbersome.

[0004] In response to the above problems, the applicant provides a solution that enables rapid replacement of filter components without interruption of monitoring, stabilizes the environment and status of air monitoring, and improves the accuracy of monitoring data. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an air quality monitoring device for engineering construction sections, which can quickly switch filter cartridges without interrupting monitoring, stabilize the air monitoring environment and status, and improve the accuracy of the detection data.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An air quality monitoring device for an engineering construction section includes a cylindrical body with a cap at the top, the cap being fixed with bolts and removable. An isolation plate and a filter cartridge are located inside the cylindrical body. A connected exhaust fan is located on one side of the cylindrical body. A support platform is located on the inner wall of the top of the cylindrical body. A rotating shaft is located on the isolation plate, rotatably connected to the bottom wall of the cylindrical body. A motor, fixed to the bottom wall of the cylindrical body via a motor mount, is connected to the rotating shaft and drives its rotation. The side of the isolation plate fits against the inner wall of the cylindrical body. A fixed sealing plate is located at the top of the isolation plate, positioned on the support platform. A monitoring instrument, fixed above the sealing plate via a mounting bracket, is located above the sealing plate. The isolation plate, in conjunction with the sealing plate, divides the cylindrical body into separate isolation chambers. The sealing plate has a through hole for installing the filter cartridge. The through hole has a limiting groove and an opening. Furthermore, a settling groove is also provided on the through hole.

[0008] The filter cylinder is provided with a flange plate and a limiting block at the top. The filter cylinder is inserted into the through hole so that the flange plate is placed in the sink, which not only makes the top surfaces flush with each other, but also supports the filter cylinder. The flange plate is provided with an opening. The filter cylinder is provided with a limiting strip on the side wall. The limiting strip is inserted into the limiting groove to prevent rotation. The limiting block and the opening are aligned with the through hole.

[0009] The cover has a through groove and an exhaust port. The through groove has a disassembly and assembly mechanism to assist in disassembling and assembling the filter cartridge. The cover also has a handle to make it easy to lift the cover.

[0010] The assembly / disassembly mechanism includes a support plate, a U-shaped frame, and a guide mechanism. The guide mechanism is fixed to the inner wall of the cylinder and includes a fixing plate that is fixedly connected to the inner wall of the cylinder. The fixing plate is equipped with a telescopic column and a guide shaft. The top of the telescopic column is equipped with a limiting plate, and a second spring is fitted onto the telescopic column. The U-shaped frame has support plates and mounting slots at both ends. The support plates have through holes for inserting the guide shaft to stabilize the U-shaped frame. The mounting slot is equipped with a wedge block and a first spring. The first spring pushes the wedge block. A second limiting plate is provided on the wedge block to prevent it from slipping out of the mounting slot. Furthermore, the U-shaped frame is fixed by two frames with bolts.

[0011] When removing the filter cartridge, after the U-shaped frame is inserted into the through groove, the guide shaft guides both ends of the U-shaped frame to be stably inserted into the opening and through. The top surface of the wedge block hooks onto the bottom surface of the limiting block. Then, lift the U-shaped frame and the cover to remove the filter cartridge for replacement.

[0012] The inner wall of the top of the cylinder is provided with a slot, and an insert plate is provided in the slot. The insert plate divides the area above the sealing plate into two separate chambers to prevent cross-flow of air between the two filter cylinders.

[0013] Preferably, the cover is provided as two semi-circular cover plates, which respectively seal one side of the cylinder of the insert plate.

[0014] Preferably, the cylinder sidewall is provided with an inspection window.

[0015] Preferably, the bottom of the cylinder is provided with a support bracket for support.

[0016] The advantages of this utility model compared with the prior art are as follows:

[0017] This design incorporates a filter cartridge to initially intercept larger airborne impurities, preventing particles like lint from adhering to the monitor's protective filter cover. This reduces the coverage of the filter cover by large dust particles, ensuring unobstructed airflow during monitoring and guaranteeing sufficient contact between the sensor probe and the air, thus improving the accuracy of the monitoring data. Furthermore, the two filter cartridges mounted on the sealing plate facilitate easy replacement. A motor drives the rotating shaft and isolation plate, allowing for alternating replacement of the two filter cartridges, ensuring continuous air monitoring during filter installation and removal. Finally, the filter cartridge is inserted into the through hole and installed using a countersunk groove and flange plate.

[0018] Finally, when disassembling and assembling the filter cartridge, simply press down on the U-shaped bracket to engage the wedge block with the bottom surface of the limiting block, and then lift the U-shaped bracket to pull out the filter cartridge. It is simple and convenient. The quick replacement and disassembly of the filter cartridge can maintain the air intake volume of the filter cartridge, thereby stabilizing the air monitoring environment and status, and improving the accuracy of the detection data. Attached Figure Description

[0019] Appendix Figure 1 This utility model discloses a structural schematic diagram of an air quality monitoring device for an engineering construction section. Figure 1 ;

[0020] Appendix Figure 2 This utility model discloses a structural schematic diagram of an air quality monitoring device for an engineering construction section. Figure 2 ;

[0021] Appendix Figure 3 This is a schematic diagram of the internal structure of the cylinder. Figure 1 ;

[0022] Appendix Figure 4 This is a schematic diagram of the internal structure of the cylinder. Figure 2 ;

[0023] Appendix Figure 5 This is a schematic diagram of the isolation plate structure. Figure 1 ;

[0024] Appendix Figure 6 This is a schematic diagram of the isolation plate structure. Figure 2 ;

[0025] Appendix Figure 7 This is a schematic diagram of the filter cartridge structure;

[0026] Appendix Figure 8This is a structural diagram of the guide mechanism and the disassembly / assembly mechanism;

[0027] Appendix Figure 9 This is a schematic diagram of the U-shaped frame assembly.

[0028] In the diagram: 1. Cylinder; 11. Inspection window; 12. Bracket; 101. Support platform; 102. Slot; 2. Exhaust fan; 3. Cover; 31. Through slot; 32. Exhaust vent; 4. Disassembly and assembly mechanism; 40. U-shaped frame; 41. Support plate; 42. Mounting slot; 43. Wedge block; 431. Second limiting plate; 44. First spring; 5. Filter cylinder; 51. Limiting strip; 52. Opening; 53. Limiting block; 54. Flange plate; 6. Isolation plate; 61. Sealing plate; 62. Through hole; 621. Limiting slot; 622. Settlement groove; 623. Through port; 63. Rotating shaft; 64. Insert plate; 7. Guide mechanism; 71. Fixing plate; 72. Telescopic column; 721. Limiting plate; 73. Guide shaft; 74. Second spring; 8. Motor; 9. Monitoring instrument; 91. Mounting frame. Detailed Implementation

[0029] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-9 The technical solution of this utility model will be further described in detail below.

[0030] An air quality monitoring device for an engineering construction section includes a cylindrical body 1, with a cap 3 at the top of the cylindrical body 1. The cap 3 is fixed by bolts and can be disassembled. An isolation plate 6 and a filter cartridge 5 are provided inside the cylindrical body 1. An exhaust fan 2 is connected to one side of the cylindrical body 1. A support platform 101 is provided on the inner wall of the top of the cylindrical body 1. A rotating shaft 63 is provided on the isolation plate 6, which is rotatably connected to the bottom wall of the cylindrical body 1. A motor 8 is fixed on the bottom wall of the cylindrical body 1 by a motor mount. The motor 8 is connected to the rotating shaft 63 and drives it to rotate. The side of the isolation plate 6 is attached to the inner wall of the cylindrical body 1. A sealing plate 61 is fixedly connected to the top of the isolation plate 6. The sealing plate 61 is located on the support platform 101. A monitoring instrument 9 is fixed above the sealing plate 61 by a mounting bracket 91. The monitoring instrument 9 is a DUST-100 model, which is purchased from the market or customized.

[0031] The isolation plate 6, together with the sealing plate 61, divides the cylinder 1 into separate isolation chambers; the sealing plate 61 is provided with a through hole 62 for installing the filter cylinder 5; the through hole 62 is provided with a limiting groove 621 and a through opening 623; furthermore, the through hole 62 is also provided with a settling groove 622.

[0032] The top of the filter cylinder 5 is provided with a flange plate 54 and a limiting block 53. The filter cylinder 5 is inserted into the through hole 62 so that the flange plate 54 is placed in the sink 622, which not only makes the top surfaces flush with each other, but also supports the filter cylinder 5. The flange plate 54 is provided with an opening 52. The side wall of the filter cylinder 5 is provided with a limiting strip 51, which is inserted into the limiting groove 621 to prevent rotation. The limiting block 53 and the opening 52 are aligned with the through hole 623.

[0033] The cover 3 is provided with a through groove 31 and an exhaust port 32. The through groove 31 is provided with a disassembly and assembly mechanism 4 to assist in disassembling and assembling the filter cartridge 5. The cover 3 is also provided with a handle to facilitate lifting the cover 3.

[0034] The disassembly and assembly mechanism 4 includes a support plate 41, a U-shaped frame 40, and a guide mechanism 7. The guide mechanism 7 is fixed to the inner wall of the cylinder 1. The guide mechanism 7 includes a fixing plate 71, which is fixedly connected to the inner wall of the cylinder 1. The fixing plate 71 is provided with a telescopic column 72 and a guide shaft 73. The top of the telescopic column 72 is provided with a limiting plate 721, and a second spring 74 is provided on the telescopic column 72. The U-shaped frame 40 is provided with a support plate 41 and an installation groove 42 at both ends. The support plate 41 is provided with a through hole 62 for inserting the guide shaft 73 to stabilize the U-shaped frame 40. The installation groove 42 is provided with a wedge block 43 and a first spring 44. The first spring 44 pushes the wedge block 43. The wedge block 43 is provided with a second limiting plate 431 to prevent it from slipping out of the installation groove 42. Furthermore, the U-shaped frame is fixed by two frames with bolts.

[0035] When removing the filter cartridge 5, the U-shaped frame 40 is inserted into the through groove 31 and guided by the guide shaft 73 so that both ends of the U-shaped frame 40 are stably inserted into the opening 52 and the through port 623. The top surface of the wedge block 43 hooks into the bottom surface of the limiting block 53. Then, the U-shaped frame 40 and the cover 3 are lifted to remove the filter cartridge 5 for replacement.

[0036] The inner wall of the top of the cylinder 1 is provided with a slot 102, and a plug-in plate 64 is provided in the slot 102. The plug-in plate 64 divides the area above the sealing plate 61 into two separate chambers to prevent air leakage between the two sets of filter cylinders 5.

[0037] The cover 3 is configured as two semi-circular cover plates, which respectively seal one side of the cylinder 1 of the insert plate 64.

[0038] The cylinder 1 has an inspection window 11 on its side wall.

[0039] The bottom of the cylinder 1 is supported by a bracket 12.

[0040] An air quality monitoring device for an engineering construction section operates as follows:

[0041] Air is drawn into the cavity on one side of the isolation plate 6 inside the cylinder 1 by the exhaust fan 2. After being filtered by the filter cartridge 5, the impurities enter the upper part of the sealing plate 61. This can reduce the coverage of large dust particles and other impurities on the protective filter cover of the monitor, keep the air intake of the protective filter cover of the monitor unobstructed during monitoring, and ensure that the sensing probe has full contact with the air. After being detected by the monitor 9, the air is discharged through the exhaust port 32.

[0042] When the filter cartridge 5 is covered with a lot of debris, causing blockage of the air inlet channel and insufficient air intake, the motor 8 drives the rotating shaft 63 to rotate, which in turn drives the isolation plate 6 and the filter cartridge 5 to rotate to the other side, realizing the alternation of the two filter cartridges 5 on the sealing plate 61. At this time, the cover 3 on the side where the guide mechanism 7 is set can be opened, and then the U-shaped frame 40 can be pressed down to make the wedge block 43 hook the limiting block 53. Then, the U-shaped frame 40 can be lifted to remove the filter cartridge 5, and then a new filter cartridge 5 can be inserted. Then, the cover 3 can be installed to prevent debris from entering and complete the replacement of the filter cartridge 5.

[0043] It can not only maintain uninterrupted air monitoring, but also has a simple replacement process.

[0044] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of this invention, the connection methods are divided into fixed connection and movable connection. Fixed connection methods include, but are not limited to, welding and bolting; movable connection methods include, but are not limited to, sliding connection, rotating connection and threaded connection. The connection method to achieve the desired effect should be selected according to the application of the solution.

[0046] In summary, the electronic or electrical components, including but not limited to motors, exhaust fans, and monitoring instruments, are existing components that were custom-made or purchased. The electrical connections between these components are conventional circuit or electrical connections in the prior art and are not within the scope of protection of this invention.

[0047] In summary, including but not limited to motors and other power systems and their respective transmission systems, protective covers are provided according to the actual installation location to prevent external environment from causing wear or damage to the power system and transmission system, and to further ensure the normal operation of the power system and transmission system.

[0048] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. An air quality monitoring device for an engineering construction section, comprising a cylinder, the top of which is provided with a cap, characterized in that... The cover is fixed with bolts and can be disassembled. The cylinder contains an isolation plate and a filter cartridge. A connected exhaust fan is located on one side of the cylinder. A support platform is located on the inner wall of the top of the cylinder. A rotating shaft is located on the isolation plate, rotatably connected to the bottom wall of the cylinder. A motor, fixed to the bottom wall of the cylinder via a motor mount, is connected to the rotating shaft and drives its rotation. The side of the isolation plate fits against the inner wall of the cylinder. A fixed sealing plate is located at the top of the isolation plate, situated on the support platform. A monitoring instrument, fixed above the sealing plate via a mounting bracket, is located above the sealing plate. The isolation plate, in conjunction with the sealing plate, divides the cylinder into separate isolation chambers. The sealing plate has through holes for installing the filter cartridge. The through holes also have limiting grooves and openings, and a settling groove. The top of the filter cylinder is provided with a flange plate and a limiting block. The filter cylinder is inserted into the through hole so that the flange plate is placed in the sink, which not only makes the top surfaces flush with each other, but also supports the filter cylinder. The flange plate is provided with an opening. The side wall of the filter cylinder is provided with a limiting strip, which is inserted into a limiting groove to prevent rotation. The limiting block and the opening are aligned with the through hole. The cover has a through groove and an exhaust port. The through groove has a disassembly and assembly mechanism to assist in disassembling and assembling the filter cartridge. The cover also has a handle to make it easy to lift the cover.

2. The air quality monitoring device for an engineering construction section according to claim 1, characterized in that... The assembly / disassembly mechanism includes a support plate, a U-shaped frame, and a guide mechanism. The guide mechanism is fixed to the inner wall of the cylinder and includes a fixing plate that is fixedly connected to the inner wall of the cylinder. The fixing plate is equipped with a telescopic column and a guide shaft. The top of the telescopic column is equipped with a limiting plate, and a second spring is fitted onto the telescopic column. The U-shaped frame has support plates and mounting slots at both ends. The support plates have through holes for inserting the guide shaft to stabilize the U-shaped frame. The mounting slot is equipped with a wedge block and a first spring. The first spring pushes the wedge block. The wedge block is equipped with a second limiting plate to prevent it from slipping out of the mounting slot. The U-shaped frame is fixed by two frames with bolts.

3. The air quality monitoring device for an engineering construction section according to claim 1, characterized in that... The inner wall of the top of the cylinder is provided with a slot, and an insert plate is provided in the slot. The insert plate divides the area above the sealing plate into two separate chambers to prevent cross-flow of air between the two filter cylinders.

4. The air quality monitoring device for an engineering construction section according to claim 1, characterized in that... The cover is provided by two semi-circular cover plates, which respectively seal one side of the cylinder of the insert plate.

5. The air quality monitoring device for an engineering construction section according to claim 1, characterized in that... The cylinder has an inspection window on its side wall.

6. The air quality monitoring device for an engineering construction section according to claim 1, characterized in that... The bottom of the cylinder is supported by a bracket.

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