Two-channel beta-ray method raise dust on-line monitor

Abstract

The utility model relates to the technical field of raise dust monitoring, and provides a dual-channel beta-ray method raise dust on-line monitor which comprises a main board, winding and unwinding rollers are arranged at the bottoms of the two sides of the front face of the main board, limiting plates are arranged on the outer sides of the winding and unwinding rollers, the outer sides of the winding and unwinding rollers are jointly sleeved with a paper tape, and the paper tape is arranged on the outer side of the main board. A fixing assembly used for fixing the limiting plate is arranged in the middle of the winding and unwinding roller, a detection frame is arranged on the top of the front face of the main plate, a first sampling pipe and a second sampling pipe are arranged on the two sides of the top end of the detection frame correspondingly, and a detector is arranged on the inner bottom wall of the detection frame; the driving assembly can drive the winding and unwinding roller to rotate, the paper tape can be inserted into the bottom of the detection frame in a penetrating mode, dust and impurities attached to the surface of the paper tape can be removed through the cleaning assembly, and meanwhile the removed dust can be collected; the problem that monitoring data are abnormal due to the fact that an existing monitor is inconvenient to clean the surface of a paper tape is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust monitoring, and in particular to a dual-channel beta ray method dust online monitor. Background Art

[0002] The β-ray dust monitoring system is also called the β-ray method dust online monitoring system, the ambient air particulate matter PM10, PM2.5 continuous automatic online monitoring equipment or the high-precision dust monitoring system. It can monitor the concentration of various types of particulate matter (including TSP, PM10 and PM2.5) online, monitor the ambient temperature and humidity, wind speed and direction, monitor noise, conduct video surveillance, capture video of pollutants exceeding the standard, and provide high-concentration alarms.

[0003] A search revealed a dual-channel beta-ray dust online monitor disclosed in publication number CN218470476U. The monitor comprises a main board and a secondary board positioned opposite the main board. The secondary board houses a rotating paper feed module, which includes a paper feed roller and a paper take-up roller. The secondary board is connected to a linear drive mechanism on the main board and is driven to move linearly relative to the main board. A detector and two separate sampling air paths are positioned above the module. A beta-ray source is positioned below the detector tip. The beta-ray source is mounted on a mounting base, creating a gap between the mounting base and the pressure head frame. The sampling air path extends into the top pressure head hole of the pressure head inlet chamber. The pressure head frame is located between the pressure head inlet chamber and the mounting base. Two driven pressure head tubes, each coaxially aligned with the bottom pressure head hole in the pressure head inlet chamber and mounted on the pressure head frame, extend their bottom ends beyond the bottom of the pressure head frame. This device can simultaneously detect both PM2.5 and PM10 data without interfering with each other.

[0004] However, the above-mentioned monitor still has the following problems: it extracts air and hits the substances in the air onto the detection paper tape, but the monitor lacks a cleaning component for the surface of the paper tape, resulting in various tiny particles adhering to the surface of the paper tape after contact with the air, affecting the accuracy of the data during the monitoring process, and it is inconvenient to replace the detection paper tape after it is used up. Utility Model Content

[0005] The utility model provides a dual-channel beta-ray dust online monitor, which solves the problems in the prior art of being unable to clean the surface of the detection paper tape, thereby affecting the monitoring data, and being inconvenient to replace the paper tape.

[0006] The technical solution of the utility model is as follows: A dual-channel beta-ray dust online monitor, including a main board, the bottom of both sides of the front side of the main board are provided with retractable rollers, the outer sides of the retractable rollers are provided with limit plates, the outer sides of the retractable rollers are collectively covered with paper tapes, the middle part of the retractable rollers is provided with a fixing component for fixing the limit plate, a detection frame is provided at the top of the front side of the main board, a first sampling tube and a second sampling tube are respectively provided on both sides of the top of the detection frame, a detector is provided on the inner bottom wall of the detection frame, a cleaning component for removing impurities on the surface of the paper tape is provided on one side of the inner top wall of the detection frame, and a driving component for controlling the rotation of the retractable rollers is provided at the bottom of the back side of the main board.

[0007] Preferably, the cleaning assembly includes a fixing frame fixedly connected to one side of the inner top wall of the detection frame, the inner bottom wall of the fixing frame is fixedly connected to an air pump, the bottom end of the fixing frame is fixedly connected to a support collar, the input end of the air pump is fixedly connected to a negative pressure pipe, the upper and lower inner walls of the support collar are fixedly connected to a cleaning brush, and the top of the inner cavity of the fixing frame is fixedly connected to a filter box connected to the output end of the air pump.

[0008] Preferably, the fixing assembly includes a fixing tube fixedly connected to the middle part of the limiting plate, movable rods are rotatably connected on both sides of the rear inner wall of the fixing tube, and the two movable rods are fixedly connected to fixed blocks on the sides away from each other, and fixing grooves are opened on both sides of the inner wall of the retracting roller, and the fixed blocks are respectively slidably connected to the inside of the fixing grooves, and a support spring is commonly fixedly connected to the middle of the opposite sides of the two movable rods.

[0009] Preferably, one end of the movable rod is fixedly connected to an adjusting rod, and the adjusting rod is slidably connected to one side of the fixed tube.

[0010] Preferably, the driving assembly includes a driving frame fixedly connected to the bottom of the back side of the main board, the bottom horizontal line of the inner cavity of the driving frame is rotatably connected to a worm, one side of the driving frame is fixedly connected to a driving motor, one end of the output shaft of the driving motor is fixedly connected to the worm, the interior of the driving frame is rotatably connected to a front-to-back symmetrical worm wheel, one side of the worm wheel is respectively fixedly connected to the retracting roller, and the bottom of the worm wheel is meshed with the worm.

[0011] Preferably, an electric push rod is fixedly connected to one side of the inner top wall of the detection frame, a movable plate is fixedly connected to the bottoms of the first sampling tube and the second sampling tube, and the bottom of the electric push rod is fixedly connected to the movable plate.

[0012] Preferably, both sides of the bottom of the rear inner wall of the detection frame are rotatably connected to guide wheels, and the paper tapes are sleeved on the outside of the guide wheels.

[0013] Preferably, both sides of the main board are rotatably connected to support rollers sleeved on the inner side of the paper tape.

[0014] The beneficial effects of the utility model are:

[0015] The utility model can drive the retracting roller to rotate through the driving component, so that the paper tape can be inserted into the bottom of the detection frame, and the dust and impurities attached to the surface of the paper tape can be removed by the cleaning component, and the cleaned dust can be collected at the same time, thereby solving the problem that the existing monitor is inconvenient to clean the surface of the paper tape, which leads to abnormal monitoring data.

[0016] In the utility model, the fixing state between the fixing component and the retracting roller can be released by adjusting the fixing component, so that the fixing component can be removed from the outside of the retracting roller with the limit plate, thereby facilitating the replacement of the paper tape on the retracting roller, solving the problem that the existing monitor is inconvenient to replace the detection paper tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a schematic diagram of the structure of a dual-channel β-ray dust online monitor proposed in this utility model;

[0019] Figure 2 This is a side structural diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the detection frame proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the cleaning component structure proposed by the utility model;

[0022] Figure 5 This is a schematic diagram of the fixing assembly structure proposed by the present utility model;

[0023] Figure 6 This is a schematic diagram of the drive assembly structure proposed by the utility model;

[0024] In the figure: 1. Main board; 2. Retractable roller; 3. Limit plate; 4. Detection frame; 5. First sampling tube; 6. Second sampling tube; 7. Fixing assembly; 71. Fixing tube; 72. Movable rod; 73. Adjusting rod; 74. Fixing block; 75. Fixing slot; 76. Support spring; 8. Driving assembly; 81. Driving frame; 82. Worm; 83. Driving motor; 84. Worm gear; 9. Cleaning assembly; 91. Fixing frame; 92. Air pump; 93. Filter box; 94. Support collar; 95. Negative pressure tube; 96. Cleaning brush; 10. Paper tape; 11. Support roller; 12. Electric push rod; 13. Movable plate; 14. Guide wheel; 15. Detector. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1 、 Figure 2 Figure 3 The utility model provides a technical solution of a dual-channel beta-ray dust online monitor: a dual-channel beta-ray dust online monitor, comprising a main board 1, retractable rollers 2 are provided at the bottom of both sides of the front of the main board 1, and limit plates 3 are provided on the outer sides of the retractable rollers 2. A paper tape 10 is commonly sheathed on the outer sides of the retractable rollers 2, and both sides of the main board 1 are rotatably connected to support rollers 11 sheathed on the inner side of the paper tape 10, and a fixing component 7 for fixing the limit plate 3 is provided in the middle of the retractable rollers 2. A detection frame 4 is provided on the top of the front of the main board 1, and both sides of the bottom of the rear inner wall of the detection frame 4 are rotatably connected to The guide wheel 14 and the paper tape 10 are both mounted on the outside of the guide wheel 14. The first sampling tube 5 and the second sampling tube 6 are respectively provided on both sides of the top of the detection frame 4. An electric push rod 12 is fixedly connected to one side of the inner top wall of the detection frame 4. The bottom of the first sampling tube 5 and the second sampling tube 6 are jointly fixedly connected to a movable plate 13. The bottom of the electric push rod 12 is fixedly connected to the movable plate 13. A detector 15 is provided on the inner bottom wall of the detection frame 4. A cleaning component 9 for removing impurities on the surface of the paper tape 10 is provided on one side of the inner top wall of the detection frame 4. A driving component 8 for controlling the rotation of the retractable roller 2 is provided at the bottom of the back of the main board 1.

[0027] See also Figure 4 The cleaning component 9 includes a fixing frame 91 fixedly connected to one side of the inner top wall of the detection frame 4, the inner bottom wall of the fixing frame 91 is fixedly connected to an air pump 92, the bottom end of the fixing frame 91 is fixedly connected to a support collar 94, the input end of the air pump 92 is fixedly connected to a negative pressure pipe 95, the upper and lower inner walls of the support collar 94 are fixedly connected to a cleaning brush 96, and the top of the inner cavity of the fixing frame 91 is fixedly connected to a filter box 93 connected to the output end of the air pump 92. During the movement of the paper tape 10, the dust and impurities on the surface of the paper tape 10 can be removed by the cleaning brush 96, and then the cleaned impurities are introduced into the filter box 93 by the air pump 92 for collection, which can keep the surface of the paper tape 10 clean and avoid affecting the monitoring data.

[0028] See also Figure 5When the lever 72 is unlocked, the locking cam 78 is unlocked, and the locking cam 78 is unlocked, so that the lock 7 can be unlocked, and the lock 7 can be unlocked when the lever 72 is unlocked.

[0029] See also Figure 6 The driving assembly 8 includes a driving frame 81 fixedly connected to the bottom of the back side of the main board 1, and the bottom horizontal line of the inner cavity of the driving frame 81 is rotatably connected to a worm 82. A driving motor 83 is fixedly connected to one side of the driving frame 81, and one end of the output shaft of the driving motor 83 is fixedly connected to the worm 82. The internal rotation of the driving frame 81 is connected to a front-to-back symmetrical worm gear 84, and one side of the worm gear 84 is fixedly connected to the retracting roller 2 respectively. The bottom of the worm gear 84 is meshed with the worm 82. By controlling the driving motor 83 to drive the worm 82 to rotate, the worm 82 and the worm gear 84 are threadedly driven, which can simultaneously drive the two retracting rollers 2 to rotate a certain angle, thereby driving the paper tape 10 to slide inside the detection frame 4.

[0030] The working principle and use process of the present invention are as follows: the driving motor 83 is controlled to drive the worm 82 to rotate, so that the worm 82 and the worm wheel 84 are threadedly driven, which can simultaneously drive the two retracting rollers 2 to rotate a certain angle, thereby driving the paper tape 10 to slide inside the detection frame 4. During the movement of the paper tape 10, the dust and impurities on the surface of the paper tape 10 can be removed by the cleaning brush 96, and then the cleaned impurities are introduced into the filter box 93 by the air pump 92 for collection, which can keep the surface of the paper tape 10 clean. Then, the electric push rod 12 is controlled to drive the movable plate 13 to move downward, which can simultaneously drive the first sampling tube 5 and the second sampling tube 6 to move downward and contact the paper tape 10. The collected gas passes through the paper tape 10 through the first sampling tube 5 and the second sampling tube 6, so that dust and other particles are attached to the paper tape 10. The paper tape 10 is weighed by the detector 15, and the particle concentration in the atmosphere per unit volume can be calculated. Then, the paper tape 10 is driven to move by controlling the drive motor 83, and continuous monitoring can be performed. At the same time, the adjusting rod 73 is pushed toward the middle, which can drive the movable rod 72 to compress the support spring 76, so that the fixed block 74 is disengaged from the inside of the fixed groove 75, and the fixation between the limit plate 3 and the retracting roller 2 can be released. The limit plate 3 can be removed from one side of the retracting roller 2, and the paper tape 10 thereon can be replaced.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dual-channel β-ray dust online monitor, comprising a mainboard (1), characterized in that: The bottom of both sides of the front of the main board (1) is provided with a retractable roller (2), the outer side of the retractable roller (2) is provided with a limit plate (3), the outer side of the retractable roller (2) is collectively covered with a paper tape (10), the middle of the retractable roller (2) is provided with a fixing component (7) for fixing the limit plate (3), the top of the main board (1) is provided with a detection frame (4), the two sides of the top of the detection frame (4) are respectively provided with a first sampling tube (5) and a second sampling tube (6), the inner bottom wall of the detection frame (4) is provided with a detector (15), and one side of the inner top wall of the detection frame (4) is provided with a cleaning component (9) for removing impurities on the surface of the paper tape (10), and the bottom of the back of the main board (1) is provided with a driving component (8) for controlling the rotation of the retractable roller (2).

2. A dual-channel β-ray dust online monitor according to claim 1, characterized in that: The cleaning assembly (9) includes a fixing frame (91) fixedly connected to one side of the inner top wall of the detection frame (4), an air pump (92) is fixedly connected to the inner bottom wall of the fixing frame (91), a support collar (94) is fixedly connected to the bottom end of the fixing frame (91), an input end of the air pump (92) is fixedly connected to a negative pressure pipe (95), the upper and lower inner walls of the support collar (94) are fixedly connected to cleaning brushes (96), and a filter box (93) connected to the output end of the air pump (92) is fixedly connected to the top of the inner cavity of the fixing frame (91).

3. The dual-channel β-ray dust online monitor according to claim 1, characterized in that: The fixing assembly (7) includes a fixing tube (71) fixedly connected to the middle of the limiting plate (3), movable rods (72) are rotatably connected to both sides of the rear inner wall of the fixing tube (71), and the two movable rods (72) are fixedly connected to the sides away from each other with fixing blocks (74), and fixing grooves (75) are provided on both sides of the inner wall of the retractable roller (2), and the fixing blocks (74) are respectively slidably connected to the inside of the fixing grooves (75), and the middle parts of the two movable rods (72) on the opposite sides are fixedly connected to a support spring (76).

4. A dual-channel β-ray dust online monitor according to claim 3, characterized in that: One end of each movable rod (72) is fixedly connected to an adjusting rod (73), and each adjusting rod (73) is slidably connected to one side of the fixed tube (71).

5. The dual-channel β-ray dust online monitor according to claim 1, characterized in that: The driving assembly (8) includes a driving frame (81) fixedly connected to the bottom of the back of the main board (1), the bottom of the inner cavity of the driving frame (81) is rotatably connected to a worm (82), one side of the driving frame (81) is fixedly connected to a driving motor (83), one end of the output shaft of the driving motor (83) is fixedly connected to the worm (82), the interior of the driving frame (81) is rotatably connected to a worm wheel (84) symmetrical in front and back, one side of the worm wheel (84) is respectively fixedly connected to the retracting roller (2), and the bottom of the worm wheel (84) is meshed with the worm (82).

6. The dual-channel β-ray dust online monitor according to claim 1, characterized in that: An electric push rod (12) is fixedly connected to one side of the inner top wall of the detection frame (4), a movable plate (13) is fixedly connected to the bottoms of the first sampling tube (5) and the second sampling tube (6), and the bottom of the electric push rod (12) is fixedly connected to the movable plate (13).

7. The dual-channel β-ray dust online monitor according to claim 1, characterized in that: Both sides of the bottom of the rear inner wall of the detection frame (4) are rotatably connected to guide wheels (14), and the paper tapes (10) are sleeved on the outside of the guide wheels (14).

8. The dual-channel β-ray dust online monitor according to claim 1, characterized in that: Both sides of the main board (1) are rotatably connected to support rollers (11) sleeved on the inner side of the paper tape (10).

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