CN114508652B - PM value monitoring device - Google Patents
PM value monitoring device Download PDFInfo
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- CN114508652B CN114508652B CN202111618615.7A CN202111618615A CN114508652B CN 114508652 B CN114508652 B CN 114508652B CN 202111618615 A CN202111618615 A CN 202111618615A CN 114508652 B CN114508652 B CN 114508652B
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 239000000428 dust Substances 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000005096 rolling process Methods 0.000 claims description 51
- 238000012544 monitoring process Methods 0.000 claims description 13
- 238000013016 damping Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 56
- 239000003570 air Substances 0.000 description 12
- 239000002245 particle Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 241000282414 Homo sapiens Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/046—Allowing translations adapted to upward-downward translation movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/22—Undercarriages with or without wheels with approximately constant height, e.g. with constant length of column or of legs
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
Abstract
The invention discloses a PM value monitoring device, which comprises a dust on-line monitoring device body, wherein a fixed column is arranged on the dust on-line monitoring device body, a circular groove is formed in the lower end of the fixed column, a lifting rainproof mechanism is arranged below the dust on-line monitoring device body, the lifting rainproof mechanism comprises a first hydraulic telescopic rod and a fixed table, the fixed table is arranged on the ground through a foundation bolt, the lower end of the first hydraulic telescopic rod is fixedly arranged on the upper surface of the fixed table, the upper end of the first hydraulic telescopic rod extends into the circular groove, a direction adjusting mechanism is arranged above the fixed table, the direction adjusting mechanism comprises a transmission rod, and the transmission rod is arranged above the fixed table. The invention has the beneficial effects that the dust on-line monitoring device body can be moved up and down, and the dust on-line monitoring device body is shielded by the rotating box body when raining, so that the dust on-line monitoring device body is prevented from being damaged, the dust on-line monitoring device body can be driven to rotate by the rotation of the motor, and the direction of the display screen can be conveniently adjusted.
Description
Technical Field
The invention relates to the technical field of air monitoring equipment, in particular to a PM value monitoring device.
Background
PM10 generally refers to particles with a particle size below 10 microns, and PM10 is in ambient air for a long time, so that the effects on human health and atmospheric visibility are great, and in general, the processes of breaking and grinding of vehicles and materials running on unpaved asphalt and cement pavements and dust raised by wind are carried out, and inhalable particles are accumulated in respiratory systems after being inhaled by people, so that a lot of diseases are caused, and the harm to human beings is great.
PM2.5 refers to particles with an aerodynamic equivalent diameter of less than or equal to 2.5 microns in the air, the particles can be suspended in the air for a longer time, the higher the content concentration of the particles in the air is, the more serious the air pollution is represented, although PM2.5 is only a component with little content in the earth atmosphere component, the PM2.5 has important effects on the air quality, the visibility and the like, compared with coarser atmospheric particles, the PM2.5 has small particle size, large area and strong activity, is easy to be attached with toxic and harmful substances, has long residence time and long conveying distance in the atmosphere, and has larger effects on the health of human bodies and the quality of the atmospheric environment.
In order to reduce air pollution and ensure the physical health of people, PM values in the air are required to be monitored, the air is generally monitored through a dust-raising on-line monitoring device, the monitoring method comprises a plurality of modes such as a light scattering method, a screening method, a sedimentation method and the like, parameter measurement such as temperature, humidity, wind speed, wind direction, air pressure and the like can be realized through a meteorological parameter measuring device, a video monitoring system can realize the functions such as dust emission exceeding snapshot and on-site construction monitoring, and remote real-time monitoring is realized by combining a remote data transmission module or a wired transmission implementation scheme based on a 4G wireless network, but the dust-raising on-line monitoring device is directly installed on the ground, rainwater can cause certain damage to the dust-raising on-line monitoring device when raining, rain is required to be shielded, the detection value of the dust-raising on-line monitoring device can be displayed through a display screen, and after the installation of the display screen is finished, if the direction of the display screen is required to be adjusted, the display screen is required to be detached and reinstalled, and the use is inconvenient.
In the prior art, for example, the patent number is CN202010497624.4, the patent name is a display direction adjusting device for PM2.5 detecting instrument, the rotating tube is driven to synchronously rotate after the driving motor drives the driving fluted disc to rotate, the adjustment of the display direction of the display screen on the surface of the rotating tube is realized, the PM2.5 detecting instrument is shielded and rainproof through a flashing board, but the device has some problems when in use, the flashing board can shield rainwater from the upper part, rain is often accompanied with wind, the wind blows the rainwater onto the PM2.5 detecting instrument from the side, and the rainproof effect is poor.
Disclosure of Invention
In view of the above drawbacks, the present invention provides a PM value monitoring apparatus to solve the problems.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the PM value monitoring device comprises a dust on-line monitoring device body, wherein a fixed column is arranged on the dust on-line monitoring device body, a circular groove is formed in the lower end of the fixed column, a lifting rainproof mechanism is arranged below the dust on-line monitoring device body and comprises a first hydraulic telescopic rod and a fixed table, the fixed table is installed on the ground through an anchor bolt, the lower end of the first hydraulic telescopic rod is fixedly installed on the upper surface of the fixed table, the upper end of the first hydraulic telescopic rod extends into the circular groove, a direction regulating mechanism is installed above the fixed table and comprises a transmission rod, the transmission rod is positioned above the fixed table,
the lifting rainproof mechanism comprises a first oil tank fixedly arranged on one side of the upper surface of a fixed table, a movable piston is arranged in the first oil tank, a piston rod is arranged on one side surface of the movable piston, an inlet and an outlet are formed on one side of the first oil tank, one end of the piston rod penetrates through the inlet and the outlet and extends to the outer side of the first oil tank, a movable rack is arranged on one side surface of the piston rod, a containing groove is formed in the upper end of the fixed table, a band-type brake servo motor is arranged at the lower end in the containing groove, a rotating end of the band-type brake servo motor is connected with a rotating shaft through a coupling, a first rolling bearing is arranged at the upper end of the rotating shaft, one end of the first rolling bearing is fixedly arranged on one side surface of the first oil tank, a first one-way bearing is arranged on the rotating shaft, a first gear is arranged on the outer side of the first one-way bearing, the first gear is meshed with the movable rack, a movable plate is arranged at one end of the piston rod, the movable plate is connected with the first oil tank through a plurality of first telescopic springs, an oil outlet pipe is arranged on one side of the first oil tank, the outlet end of the oil outlet pipe is fixedly connected with the inlet end of the first hydraulic telescopic rod, a supporting table is arranged on one side of the upper surface of the fixed table, a rotating rod is arranged above the fixed table, second rolling bearings are arranged at two ends of the rotating rod, the lower end of the second rolling bearings is fixedly arranged on the upper surface of the fixed table, a second gear is arranged on the rotating rod, a lifting sleeve is sleeved on the outer side of the first hydraulic telescopic rod, a circular lifting plate is arranged at the upper end of the lifting sleeve, a third rolling bearing is arranged at the upper end of the circular lifting plate, the lower end of the fixing column is inserted into the third rolling bearings, a lifting rack is arranged on one side of the lifting sleeve and is positioned on one side of the second gear, a rotating box body is arranged on one side of the rotating rod, and one end of the rotating box is arranged on the rotating rod through a plurality of connecting rods.
Further, the direction regulating mechanism comprises a second one-way bearing fixedly arranged at the upper end of the rotating shaft, a third gear is arranged at the outer side of the second one-way bearing, fourth rolling bearings are arranged at the two ends of the transmission rod, the fourth rolling bearings at the lower end of the transmission rod are fixedly arranged on the upper surface of the fixed table, the fourth rolling bearings at the upper end of the transmission rod are fixedly arranged on one side surface of the supporting table, the fourth gear is arranged at the outer side of the transmission rod, the third gear and the fourth gear are connected through a transmission chain, a circular through hole is formed in the transmission rod, a lifting rod is arranged in the circular through hole, a round hole is formed in the fixed table, the round hole corresponds to the circular through hole in a concentric manner, the lower end of the lifting rod extends into the round hole, the upper end of the lifting rod extends out of the circular through hole, a fifth gear is arranged at the upper end of the lifting rod, a sixth gear is arranged at the lower end of the fixed column, the fifth gear is meshed with the fifth gear, one end of the fifth rolling bearing is fixedly arranged on one side surface of the circular lifting plate, a circular lifting plate is arranged at the lower end of the lifting rod, a plurality of springs are arranged on the upper surface of the circular lifting plate, a plurality of the circular limiting balls are arranged on the upper end of the circular lifting plate, a plurality of the circular limiting balls are fixedly arranged in the circular through holes, and the circular limiting balls are arranged on the upper end of the circular ball limiting table, and the limiting ball bearings are fixedly arranged on the upper end of the circular ball limiting table.
Further, square recess has been opened to the brace table upper end, be equipped with the elevating platform in the square recess, the lower surface is connected through a plurality of second hydraulic telescoping rods in elevating platform lower surface and the square recess, the second oil tank is installed to fixed station upper surface one side, be equipped with the lift piston in the second oil tank, the lift post is installed to lift piston upper end, the business turn over hole has been opened to second oil tank upper end, the lift piece is installed to lift post upper end, elevating piece lower surface and second oil tank upper surface are connected through a plurality of second telescopic springs, oil guide pipe is installed to second oil tank lower extreme one side, square recess lower extreme one side is opened and is led the hydraulic telescoping rod lower extreme fixed connection of hydraulic telescoping rod is passed to oil guide pipe exit end, lifting piece top one side is equipped with the clamp plate, the clamp plate both ends are connected through the connecting axle with third antifriction bearing.
Further, the upper end of the lifting table is provided with a long groove, a lifting baffle plate is arranged in the long groove, the lower surface of the lifting baffle plate is connected with the inner lower surface of the long groove through a plurality of third telescopic springs, and an arc-shaped vibration reduction pad is arranged on the upper surface of the lifting baffle plate.
Further, a plurality of locating rods are arranged on one side surface of the first oil tank.
Further, the rotating box body comprises an L-shaped rotating plate, and protection plates are arranged on two sides of the L-shaped rotating plate.
Further, a plurality of second universal balls are arranged at the upper end of the circular through hole.
Further, an inclined supporting plate is arranged on one side of the upper surface of the first oil tank.
The invention has the beneficial effects that: the invention has reasonable structure, is provided with a plurality of functions of rain prevention, expansion, steering and the like, and has the following advantages:
when raining, the first hydraulic telescopic rod is shortened to the shortest, the rotary box body is positioned above the dust on-line monitoring device, the dust on-line monitoring device can be shielded and rainproof, and at the moment, the device can be rainproof, and the space occupied by the device is reduced;
during sunny days, the first hydraulic telescopic rod is extended, and the rotating box body can be rotated to one side through the transmission of the gear rack, so that the dust on-line monitoring device can be leaked and moved upwards, the dust on-line monitoring device can be lifted, the influence of the rotating box body on the on-line monitoring device can be reduced, and the monitoring accuracy of the on-line dust monitoring device is ensured;
when the first hydraulic telescopic rod stretches to the longest, the transmission rod is connected with the lifting rod, and when the motor rotates, the transmission rod and the lifting rod can be driven to rotate, and then the online dust monitoring device can be driven to rotate through the transmission of the gear, so that the display direction of the display screen can be conveniently adjusted, the display information of the device can be conveniently seen by staff in all directions, and the air quality can be conveniently guaranteed.
Drawings
FIG. 1 is a schematic diagram of a PM value monitoring device according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a partial enlarged view at B in FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 1 at C;
FIG. 5 is a partial enlarged view at D in FIG. 1;
FIG. 6 is an enlarged view of a portion of FIG. 1 at E;
FIG. 7 is a schematic view, partly in section, of a PM value monitoring device according to the invention in a top view;
FIG. 8 is a schematic view of the connection between the first tank and the mobile plate according to the present invention;
FIG. 9 is a schematic diagram of the positional relationship between the drive rod and the lift rod according to the present invention;
FIG. 10 is a schematic diagram of the connection between the second tank and the lifting block according to the present invention;
in the figure, 1, a dust on-line monitoring device body; 2. fixing the column; 3. a circular groove; 4. a first hydraulic telescoping rod; 5. a fixed table; 6. a transmission rod; 7. a first oil tank; 8. moving the piston; 9. a piston rod; 10. an inlet and an outlet; 11. moving the rack; 12. a holding groove; 13. band-type brake servo motor; 14. a rotating shaft; 15. a first rolling bearing; 16. a first one-way bearing; 17. a first gear; 18. a moving plate; 19. a first extension spring; 20. an oil outlet pipe; 21. a support table; 22. a rotating lever; 23. a second rolling bearing; 24. a second gear; 25. lifting the sleeve; 26. a circular lifting plate; 27. a third rolling bearing; 28. lifting the rack; 29. rotating the box body; 30. a connecting rod; 31. a second one-way bearing; 32. a third gear; 33. a fourth rolling bearing; 34. a fourth gear; 35. a drive chain; 36. a circular through hole; 37. a lifting rod; 38. a round hole; 39. a fifth gear; 40. a sixth gear; 41. a fifth rolling bearing; 42. a circular lifting plate; 43. a spring thimble; 44. a first universal ball; 45. a circular ring limiting table; 46. a limiting hole; 47. a sixth rolling bearing; 48. square grooves; 49. a lifting table; 50. a second hydraulic telescoping rod; 51. a second oil tank; 52. a lifting piston; 53. lifting columns; 54. an inlet and outlet hole; 55. a lifting block; 56. a second extension spring; 57. an oil guide pipe; 58. an oil guide port; 59. pressing the plate; 60. a connecting shaft; 61. a long groove; 62. lifting a baffle; 63. a third extension spring; 64. an arc-shaped vibration damping pad; 65. a positioning rod; 66. an L-shaped rotating plate; 67. a protection plate; 68. a second universal ball; 69. the support plate is inclined.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings, as shown in fig. 1-10: the PM value monitoring device comprises a dust on-line monitoring device body 1, a fixed column 2 is arranged on the dust on-line monitoring device body 1, a round groove 3 is formed in the lower end of the fixed column 2, a lifting rainproof mechanism is arranged below the dust on-line monitoring device body 1, the lifting rainproof mechanism comprises a first hydraulic telescopic rod 4 and a fixed table 5, the fixed table 5 is installed on the ground through foundation bolts, the lower end of the first hydraulic telescopic rod 4 is fixedly arranged on the upper surface of the fixed table 5, the upper end of the first hydraulic telescopic rod 4 extends into the round groove 3, a direction adjusting mechanism is installed above the fixed table 5 and comprises a transmission rod 6, the transmission rod 6 is positioned above the fixed table 5,
the lifting rainproof mechanism comprises a first oil tank 7 fixedly arranged on one side of the upper surface of a fixed table 5, a movable piston 8 is arranged in the first oil tank 7, a piston rod 9 is arranged on one side surface of the movable piston 8, an inlet and outlet 10 is arranged on one side of the first oil tank 7, one end of the piston rod 9 extends to the outer side of the first oil tank 7 through the inlet and outlet 10, a movable rack 11 is arranged on one side surface of the piston rod 9, a holding groove 12 is arranged at the upper end of the fixed table 5, a band-type brake servo motor 13 is arranged at the inner lower end of the holding groove 12, the rotating end of the band-type brake servo motor 13 is connected with a rotating shaft 14 through a coupler, a first rolling bearing 15 is arranged at the upper end of the rotating shaft 14, one end of the first rolling bearing 15 is fixedly arranged on one side surface of the first oil tank 7, a first one-way bearing 16 is arranged on the rotating shaft 14, a first gear 17 is arranged on the outer side of the first one-way bearing 16, the first gear 17 is meshed with the movable rack 11, a moving plate 18 is arranged at one end of the piston rod 9, the moving plate 18 is connected with a first oil tank 7 through a plurality of first telescopic springs 19, an oil outlet pipe 20 is arranged at one side of the first oil tank 7, the outlet end of the oil outlet pipe 20 is fixedly connected with the inlet end of a first hydraulic telescopic rod 4, a supporting table 21 is arranged at one side of the upper surface of a fixed table 5, a rotating rod 22 is arranged above the fixed table 5, second rolling bearings 23 are arranged at two ends of the rotating rod 22, the lower end of the second rolling bearings 23 is fixedly arranged on the upper surface of the fixed table 5, a second gear 24 is arranged on the rotating rod 22, a lifting sleeve 25 is sleeved outside the first hydraulic telescopic rod 4, a circular lifting plate 26 is arranged at the upper end of the lifting sleeve 25, a third rolling bearing 27 is arranged at the upper end of the circular lifting plate 26, the lower end of the fixed column 2 is inserted into the third rolling bearing 27, a lifting rack 28 is arranged at one side of the lifting sleeve 25, the lifting rack 28 is positioned at one side of the second gear 24, the rotating rod 22 one side is equipped with rotates box 29, rotates box 29 one end and installs on rotating rod 22 through a plurality of connecting rods 30, through band-type brake servo motor 13's rotation, can drive piston rod 9 and rotate in first oil tank 7, and make and remove piston 8 and remove in first oil tank 7, and then can make the hydraulic oil between first oil tank 7 and the first hydraulic telescoping rod 4 remove, and then the length of adjustable first hydraulic telescoping rod 4, when first hydraulic telescoping rod 4 stretches out and draws back, through rack and pinion's transmission, can make rotate box 29 to one side, and then dodge raise dust on-line monitoring device 1, be convenient for raise dust on-line monitoring device 1 upwards remove and monitor the air.
The direction adjusting mechanism comprises a second one-way bearing 31 fixedly arranged at the upper end of a rotating shaft 14, a third gear 32 is arranged at the outer side of the second one-way bearing 31, a fourth rolling bearing 33 is arranged at the two ends of a transmission rod 6, a fourth rolling bearing 33 at the lower end of the transmission rod 6 is fixedly arranged on the upper surface of a fixed table 5, a fourth rolling bearing 33 at the upper end of the transmission rod 6 is fixedly arranged on one side surface of a supporting table 21, a fourth gear 34 is arranged at the outer side of the transmission rod 6, the third gear 32 and the fourth gear 34 are connected through a transmission chain 35, a circular through hole 36 is arranged on the transmission rod 6, a lifting rod 37 is arranged in the circular through hole 36, a round hole 38 is arranged on the fixed table 5, the round hole 38 corresponds to the circular through hole 36 concentrically, the lower end of the lifting rod 37 extends into the round hole 38, the upper end of the lifting rod 37 extends to the outer side of the circular through hole 36, a fifth gear 39 is arranged at the upper end of the lifting rod 37, a sixth gear 40 is arranged at the lower end of the fixed column 2, the fifth gear 39 is meshed with the sixth gear 40, a fifth rolling bearing 41 is installed at the upper end of the lifting rod 37, one end of the fifth rolling bearing 41 is fixedly installed on one side surface of the circular lifting plate 26, a circular lifting plate 42 is installed at the lower end of the lifting rod 37, a plurality of spring ejector pins 43 are installed on the upper surface of the circular lifting plate 42, a first universal ball 44 is installed at the upper end of the spring ejector pins 43, a circular limiting table 45 is installed at the inner upper end of the circular limiting table 45, a plurality of limiting holes 46 are formed at the lower end of the circular limiting table 45, a sixth rolling bearing 47 is installed at the upper end of the first hydraulic telescopic rod 4, the sixth rolling bearing 47 is fixedly installed on the inner upper surface of the circular groove 3, when the lifting rod 37 moves to the highest position, the lifting rod 37 can be connected with the transmission rod 6, the lifting rod 37 can be driven to rotate when the transmission rod 6 rotates, the dust on-raising on-line monitoring device 1 can be driven to rotate through the transmission of the gears, the display screen can be adjusted.
The upper end of the supporting table 21 is provided with a square groove 48, a lifting table 49 is arranged in the square groove 48, the lower surface of the lifting table 49 is connected with the inner lower surface of the square groove 48 through a plurality of second hydraulic telescopic rods 50, one side of the upper surface of the fixed table 5 is provided with a second oil tank 51, a lifting piston 52 is arranged in the second oil tank 51, the upper end of the lifting piston 52 is provided with a lifting column 53, the upper end of the second oil tank 51 is provided with an inlet and outlet hole 54, the upper end of the lifting column 53 penetrates through the inlet and outlet hole 54 to extend to the outer side of the second oil tank 51, the upper end of the lifting column 53 is provided with a lifting block 55, the lower surface of the lifting block 55 is connected with the upper surface of the second oil tank 51 through a plurality of second telescopic springs 56, one side of the lower end of the second oil tank 51 is provided with an oil guide pipe 57, the outlet end of the oil guide pipe 57 penetrates through the oil guide port 58 to be fixedly connected with the lower end of the second hydraulic telescopic rods 50, one side of the upper side of the lifting block 55 is provided with a pressing plate 59, two ends of the pressing plate 59 are connected with a third online monitoring bearing 27 through a connecting shaft 60, and when the dust raising device 1 moves upwards, the lifting table 49 can be blocked, and the display screen 49 can be prevented from moving downwards, and the upper information can be displayed.
The upper end of the lifting platform 49 is provided with a long groove 61, a lifting baffle plate 62 is arranged in the long groove 61, the lower surface of the lifting baffle plate 62 is connected with the inner lower surface of the long groove 61 through a plurality of third telescopic springs 63, and an arc-shaped vibration damping pad 64 is arranged on the upper surface of the lifting baffle plate 62 and can damp the rotation box 29.
A plurality of positioning rods 65 are arranged on one side surface of the first oil tank 7 and can limit the moving plate 18.
The rotary case 29 includes an L-shaped rotary plate 66, and guard plates 67 are installed on both sides of the L-shaped rotary plate 66.
The circular through hole 36 is provided with a plurality of second universal balls 68 at the upper end thereof, so that friction force during movement of the lifting rod 37 can be reduced.
An inclined support plate 69 is installed on one side of the upper surface of the first oil tank 7 to facilitate the support of the rotary tank 29.
In this embodiment, the electric equipment of the device is controlled by an external controller, when raining, the first hydraulic telescopic rod 4 is in the shortest state, one end of the rotating box 29 is covered on the upper end of the arc-shaped vibration damping pad 64, the second hydraulic telescopic rod 50 is in the longest state, the lifting rack 28 is meshed with the second gear 24, the rotating box 29 can be prevented from rotating, the lower end of the lifting rod 37 is positioned at the inner lower end of the round hole 38, the band-type brake servo motor 13 is not electrified, self-locking can be performed, the rotating shaft 14 can be prevented from rotating, the moving rack 11 can be prevented from moving to one side through the first one-way bearing 16 and the first gear 17, the moving plate 18 can be further in the static state, the first telescopic spring 19 is in the stretching state, the pressing plate 59 pushes the lifting block 55 downwards, and the second telescopic spring 56 is compressed,
when the dust on-line monitoring device body 1 is needed to monitor the air in sunny days, the band-type brake servo motor 13 is started to rotate positively, the band-type brake servo motor 13 can drive the rotating shaft 14 to rotate through the coupler, the rotating shaft 14 can rotate in the first one-way bearing 16 and can not drive the first one-way bearing 16 and the first gear 17 to rotate, the rotating shaft 14 can drive the second one-way bearing 31 and the third gear 32 to rotate, the third gear 32 and the fourth gear 34 are connected through the transmission chain 35 and can drive the fourth gear 34 and the transmission rod 6 to rotate, the transmission rod 6 is not connected with the lifting rod 37 at the moment, the lifting rod 37 can not rotate, the second universal ball 68 can reduce the friction force when the transmission rod 6 rotates, when the band-type brake servo motor 13 rotates positively, the first one-way bearing 16 and the first gear 17 can not be driven to rotate, but under the pull force of the first telescopic spring 19, the moving plate 18 can be pulled to one side, the moving plate 18 gives a moving trend to the moving rack 11, when the servo motor 13 rotates positively, the moving plate 18 can ensure that the first gear 17 and the first one-way bearing 16 rotate along with the rotating shaft 14 through the movement of the moving rack 11, when the moving plate 18 and the moving rack 11 move, the piston rod 9 and the moving piston 8 can move towards the inside of the first oil tank 7, the hydraulic oil in the first oil tank 7 can be moved into the first hydraulic telescopic rod 4 through the oil outlet pipe 20, the first hydraulic telescopic rod 4 can be further extended, the positioning rod 65 can position the moving plate 18, the moving plate 18 can not move any more after the surface of one side of the moving plate 18 contacts the positioning rod 65, and when the brake servo motor 13 continues to rotate, the first one-way bearing 16 and the first gear 17 can not rotate, and therefore the moving rack 11 can not be moved,
when the first hydraulic telescopic rod 4 stretches, the fixed column 2, the third rolling bearing 27, the circular lifting plate 26, the lifting sleeve 25 and the lifting rack 28 can be driven to move upwards, the lifting rack 28 is meshed with the second gear 24, the second gear 24 can be driven to rotate, the second gear 24 can drive the rotating rod 22 to rotate, the rotating rod 22 can drive the rotating box 29 to rotate through the connecting rod 30, when the lifting rack 28 passes from one side of the second gear 24, the rotating box 29 can be completely opened, one end of the rotating box 29 falls on the inclined supporting plate 69 to be supported, the dust on-line monitoring device body 1 can be conveniently moved upwards, the air can be conveniently monitored,
when the first hydraulic telescopic rod 4 is extended, the fixed column 2, the third rolling bearing 27, the connecting shaft 60 and the pressing plate 59 can be made to move upwards, when the pressing plate 59 is moved upwards, under the elastic force of the second telescopic spring 56, the lifting block 55, the lifting column 53 and the lifting piston 52 can be made to move upwards, and then the hydraulic oil in the second hydraulic telescopic rod 50 can be sucked back into the second oil tank 51 through the oil guide pipe 57, and further the second hydraulic telescopic rod 50 can be shortened, and the lifting table 49 is pulled downwards, so that the lifting table 49 can be prevented from shielding the display screen on the dust online monitoring device body 1,
when the first hydraulic telescopic rod 4 is extended, the fixed column 2, the third rolling bearing 27, the annular lifting plate 26, the fifth rolling bearing 41, the lifting rod 37, the fifth gear 39, the sixth gear 40, the circular lifting plate 42, the spring thimble 43 and the first universal ball 44 can be moved upwards, the second universal ball 68 can reduce the friction force of the lifting rod 37 for upwards movement, when the first hydraulic telescopic rod 4 is extended to the longest, the circular lifting plate 42 and the spring thimble 43 can be moved below the annular limiting table 45, when the spring thimble 43 corresponds to the position of the limiting hole 46 at this time, the first universal ball 44 can move in the limiting hole 46, the transmission rod 6 can be connected with the lifting rod 37, the lifting rod 37 and the transmission rod 6 can synchronously rotate, if the spring thimble 43 does not correspond to the limit hole 46 at this time, the first universal ball 44 can move to the lower surface of the circular limit table 45 and compress the spring thimble 43, when the transmission rod 6 rotates, the limit hole 46 can be made to rotate above the first universal ball 44, under the action of the elasticity of the spring thimble 43, the first universal ball 44 can be pushed into the limit hole 46, further the transmission rod 6 can be connected with the lifting rod 37, the lifting rod 37 and the transmission rod 6 can synchronously rotate, when the lifting rod 37 rotates, the fifth gear 39 can be driven to rotate, the fifth gear 39 is meshed with the sixth gear 40, the sixth gear 40 and the dust on-line monitoring device body 1 can be driven to rotate, then the position of a display screen on the dust on-line monitoring device body 1 can be adjusted through the positive rotation of the brake band-type servo motor 13,
when raining days are met, the rotary box 29 is required to be rotated to the upper part of the dust on-line monitoring device body 1, the band-type brake servo motor 13 is started to rotate reversely, when the band-type brake servo motor 13 rotates reversely, the rotary shaft 14 can be driven to move through the coupler, the rotary shaft 14 can rotate in the second unidirectional bearing 31 at the moment, the second unidirectional bearing 31 and the third gear 32 can not be driven to rotate, the transmission rod 6 can not rotate, the rotary shaft 14 can drive the first unidirectional bearing 15 and the first gear 17 to rotate, the first gear 17 is meshed with the movable rack 11, the piston rod 9, the movable plate 18 and the movable piston 8 can be further stretched to the outer side of the first oil tank 7, the first telescopic spring 19 can be stretched, hydraulic oil in the first hydraulic telescopic rod 4 can be sucked into the first oil tank 7 through the oil outlet pipe 20, the first hydraulic telescopic rod 4 can be shortened, and the dust on-line monitoring device body 1 can be driven to move downwards,
when the first hydraulic telescopic rod 4 is shortened, the fixed column 2, the third rolling bearing 27, the circular lifting plate 26, the lifting sleeve 25 and the lifting rack 28 can be driven to move downwards, when the lower end of the lifting rack 28 contacts the second gear 24, the second gear 24 can be driven to rotate, the second gear 24 can drive the rotating rod 22 to rotate, the rotating rod 22 can drive the rotating box body 29 to rotate through the connecting rod 30, when the first hydraulic telescopic rod 4 is shortened to the shortest, the rotating box body 29 can cover the dust-raising on-line monitoring device body 1, thereby being convenient for rain prevention,
when the first hydraulic telescopic rod 4 is shortened, the fixed column 2, the third rolling bearing 27, the connecting shaft 60 and the pressing plate 59 can be driven to move downwards, when the pressing plate 59 moves downwards, the lifting block 55, the lifting column 53 and the lifting piston 52 can be pushed downwards, the second telescopic spring 56 can be compressed, hydraulic oil in the second oil tank 51 can be pushed into the second hydraulic telescopic rod 50 through the oil guide pipe 57, the second hydraulic telescopic rod 50 can be extended, the lifting table 49 can be pushed upwards by the second hydraulic telescopic rod 50, the rotating box body 29 can be supported, the lifting baffle plate 62 on the lifting table 49 can move inwards to the long groove 61, the third telescopic spring 63 can be compressed, the impact force between the rotating box body 29 and the lifting table 49 can be reduced, the gap between the rotating box body 29 and the lifting baffle plate 62 can be blocked through the arc-shaped vibration reduction pad 64,
when the first hydraulic telescopic rod 4 is shortened, the fixed column 2, the third rolling bearing 27, the annular lifting plate 26, the fifth rolling bearing 41, the lifting rod 37, the fifth gear 39, the sixth gear 40, the circular lifting plate 42, the spring thimble 43 and the first universal ball 44 can be moved downwards, the first universal ball 44 can be moved out of the limiting hole 46, the transmission rod 6 can be disconnected from the lifting rod 37, and the dust-raising on-line monitoring device body 1 can be rainproof.
The above technical solution only represents the preferred technical solution of the present invention, and some changes that may be made by those skilled in the art to some parts of the technical solution represent the principles of the present invention, and the technical solution falls within the scope of the present invention.
Claims (8)
1. The PM value monitoring device comprises a dust on-line monitoring device body (1), and is characterized in that a fixed column (2) is arranged on the dust on-line monitoring device body (1), a round groove (3) is formed in the lower end of the fixed column (2), a lifting rainproof mechanism is arranged below the dust on-line monitoring device body (1), the lifting rainproof mechanism comprises a first hydraulic telescopic rod (4) and a fixed table (5), the fixed table (5) is installed on the ground through foundation bolts, the lower end of the first hydraulic telescopic rod (4) is fixedly arranged on the upper surface of the fixed table (5), the upper end of the first hydraulic telescopic rod (4) extends into the round groove (3), a direction adjusting mechanism is arranged above the fixed table (5) and comprises a transmission rod (6), the transmission rod (6) is positioned above the fixed table (5),
the lifting rainproof mechanism comprises a first oil tank (7) fixedly arranged on one side of the upper surface of a fixed table (5), a movable piston (8) is arranged in the first oil tank (7), a piston rod (9) is arranged on one side surface of the movable piston (8), an inlet and outlet (10) is arranged on one side of the first oil tank (7), one end of the piston rod (9) penetrates through the inlet and outlet (10) to extend to the outer side of the first oil tank (7), a movable rack (11) is arranged on one side surface of the piston rod (9), a containing groove (12) is arranged at the upper end of the fixed table (5), a band-type brake servo motor (13) is arranged at the inner lower end of the containing groove (12), a rotating end of the band-type brake servo motor (13) is connected with a rotating shaft (14) through a coupler, a first rolling bearing (15) is arranged at the upper end of the rotating shaft (14), one end of the first rolling bearing (15) is fixedly arranged on one side surface of the first oil tank (7), a first one-way bearing (16) is arranged on the rotating shaft (14), a first gear (17) is arranged on the outer side of the first one-way bearing (16), the first gear (17) is meshed with the movable rack (11), one end (9) is meshed with the movable rack (9), a plurality of movable plates (18) are connected with the first oil tank (19) through a plurality of springs, an oil outlet pipe (20) is arranged on one side of a first oil tank (7), the outlet end of the oil outlet pipe (20) is fixedly connected with the inlet end of a first hydraulic telescopic rod (4), a supporting table (21) is arranged on one side of the upper surface of a fixed table (5), a rotating rod (22) is arranged above the fixed table (5), second rolling bearings (23) are arranged at two ends of the rotating rod (22), the lower end of the second rolling bearings (23) is fixedly arranged on the upper surface of the fixed table (5), a second gear (24) is arranged on the rotating rod (22), a lifting sleeve (25) is sleeved outside the first hydraulic telescopic rod (4), a circular lifting plate (26) is arranged at the upper end of the lifting sleeve (25), a third rolling bearing (27) is arranged at the upper end of the circular lifting plate (26), the lower end of the fixed column (2) is inserted into the third rolling bearing (27), a lifting rack (28) is arranged on one side of the lifting sleeve (25), the lifting rack (28) is arranged on one side of the second gear (24), a rotating rod (22) is provided with a rotating box (29), and one end of the rotating box (29) is arranged on the connecting rod (22) through a plurality of connecting rods (30).
2. The PM value monitoring device according to claim 1, wherein the steering mechanism comprises a second one-way bearing (31) fixedly arranged at the upper end of the rotating shaft (14), a third gear (32) is arranged at the outer side of the second one-way bearing (31), a fourth rolling bearing (33) is arranged at the two ends of the driving rod (6), the fourth rolling bearing (33) at the lower end of the driving rod (6) is fixedly arranged on the upper surface of the fixed table (5), the fourth rolling bearing (33) at the upper end of the driving rod (6) is fixedly arranged on one side surface of the supporting table (21), a fourth gear (34) is arranged at the outer side of the driving rod (6), the third gear (32) and the fourth gear (34) are connected through a driving chain (35), a circular through hole (36) is formed in the driving rod (6), a lifting rod (37) is arranged in the circular through hole (36), a circular hole (38) is formed in the fixed table (5), the lower end of the lifting rod (37) extends into the circular hole (38) in a concentric manner, the upper end of the lifting rod (37) extends into the circular through hole (38), the upper end of the lifting rod (37) extends into the circular through hole (36), the fifth gear (40) is meshed with the fifth gear (40) and the fifth gear (40) is meshed with the fifth gear (40), a fifth rolling bearing (41) is arranged at the upper end of the lifting rod (37), one end of the fifth rolling bearing (41) is fixedly arranged on one side surface of the circular lifting plate (26), a circular lifting plate (42) is arranged at the lower end of the lifting rod (37), a plurality of spring ejector pins (43) are arranged on the upper surface of the circular lifting plate (42), a first universal ball (44) is arranged at the upper end of each spring ejector pin (43), a circular limiting table (45) is arranged at the inner upper end of each circular through hole (36), a plurality of limiting holes (46) are formed in the lower end of each circular limiting table (45), a sixth rolling bearing (47) is arranged at the upper end of each first hydraulic telescopic rod (4), and the sixth rolling bearing (47) is fixedly arranged on the inner upper surface of each circular groove (3).
3. The PM value monitoring device according to claim 1, wherein the upper end of the supporting table (21) is provided with a square groove (48), a lifting table (49) is arranged in the square groove (48), the lower surface of the lifting table (49) is connected with the inner lower surface of the square groove (48) through a plurality of second hydraulic telescopic rods (50), one side of the upper surface of the fixed table (5) is provided with a second oil tank (51), the second oil tank (51) is internally provided with a lifting piston (52), the upper end of the lifting piston (52) is provided with a lifting column (53), the upper end of the second oil tank (51) is provided with an inlet and outlet hole (54), the upper end of the lifting column (53) extends to the outer side of the second oil tank (51) through the inlet and outlet hole (54), the upper end of the lifting column (53) is provided with a lifting block (55), the lower surface of the lifting block (55) is connected with the upper surface of the second oil tank (51) through a plurality of second telescopic springs (56), one side of the lower end of the second oil tank (51) is provided with an oil guide pipe (57), one side of the lower end of the square groove (48) is provided with an oil guide port (58), one side of the lower end of the guide port (58) is provided with an oil guide port (58), the upper end of the guide port (58) is connected with the upper end of the lifting block (55) through a plurality of second telescopic springs, both ends of the pressing plate (59) are connected with the third rolling bearing (27) through a connecting shaft (60).
4. A PM value monitoring apparatus according to claim 3, characterized in that the upper end of the lifting table (49) is provided with a long groove (61), a lifting baffle (62) is arranged in the long groove (61), the lower surface of the lifting baffle (62) is connected with the inner lower surface of the long groove (61) through a plurality of third telescopic springs (63), and an arc-shaped vibration-damping pad (64) is arranged on the upper surface of the lifting baffle (62).
5. The PM value monitoring apparatus according to claim 1, wherein a plurality of positioning rods (65) are mounted on a side surface of the first oil tank (7).
6. The PM value monitoring apparatus according to claim 1, wherein the rotation case (29) includes an L-shaped rotation plate (66), and protection plates (67) are installed on both sides of the L-shaped rotation plate (66).
7. A PM value monitoring apparatus according to claim 2, characterized in that a plurality of second universal balls (68) are mounted on the upper end of the circular through hole (36).
8. A PM value monitoring apparatus according to claim 1, characterized in that the first oil tank (7) is provided with an inclined support plate (69) on the upper surface side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111618615.7A CN114508652B (en) | 2021-12-29 | 2021-12-29 | PM value monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111618615.7A CN114508652B (en) | 2021-12-29 | 2021-12-29 | PM value monitoring device |
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| CN114508652A CN114508652A (en) | 2022-05-17 |
| CN114508652B true CN114508652B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111618615.7A Active CN114508652B (en) | 2021-12-29 | 2021-12-29 | PM value monitoring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116951282B (en) * | 2023-09-21 | 2023-11-24 | 新云滕科技有限公司 | Fixing device for automatic ticket vending machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11350688A (en) * | 1998-06-05 | 1999-12-21 | Iwaki:Kk | Rain protection unit for drying area in house |
| CN210427294U (en) * | 2019-07-24 | 2020-04-28 | 重庆好助手商贸有限责任公司 | Dust sensor rainproof cover |
| CN213330332U (en) * | 2020-07-17 | 2021-06-01 | 湖南馨雅林工程技术有限公司 | Photovoltaic module monitoring devices |
| CN213455572U (en) * | 2020-11-22 | 2021-06-15 | 江西福友环境科技有限公司 | Monitoring device for ecological environment improvement |
| CN213750375U (en) * | 2020-12-14 | 2021-07-20 | 湖北天蓝地绿生态科技股份有限公司 | River regulation monitoring system based on Internet of things |
-
2021
- 2021-12-29 CN CN202111618615.7A patent/CN114508652B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11350688A (en) * | 1998-06-05 | 1999-12-21 | Iwaki:Kk | Rain protection unit for drying area in house |
| CN210427294U (en) * | 2019-07-24 | 2020-04-28 | 重庆好助手商贸有限责任公司 | Dust sensor rainproof cover |
| CN213330332U (en) * | 2020-07-17 | 2021-06-01 | 湖南馨雅林工程技术有限公司 | Photovoltaic module monitoring devices |
| CN213455572U (en) * | 2020-11-22 | 2021-06-15 | 江西福友环境科技有限公司 | Monitoring device for ecological environment improvement |
| CN213750375U (en) * | 2020-12-14 | 2021-07-20 | 湖北天蓝地绿生态科技股份有限公司 | River regulation monitoring system based on Internet of things |
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| CN114508652A (en) | 2022-05-17 |
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