CN116609235A - Dust monitoring device and dust monitoring method based on construction site - Google Patents

Dust monitoring device and dust monitoring method based on construction site Download PDF

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Publication number
CN116609235A
CN116609235A CN202310882313.3A CN202310882313A CN116609235A CN 116609235 A CN116609235 A CN 116609235A CN 202310882313 A CN202310882313 A CN 202310882313A CN 116609235 A CN116609235 A CN 116609235A
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CN
China
Prior art keywords
wall
dust
box
lifting column
solar panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310882313.3A
Other languages
Chinese (zh)
Inventor
肖利君
王磊
肖友军
侯白艳
吴智慧
王海红
王娅蓉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Yunlu Traffic Information Technology Co ltd
Original Assignee
Anhui Yunlu Traffic Information Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Yunlu Traffic Information Technology Co ltd filed Critical Anhui Yunlu Traffic Information Technology Co ltd
Priority to CN202310882313.3A priority Critical patent/CN116609235A/en
Publication of CN116609235A publication Critical patent/CN116609235A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/06Investigating concentration of particle suspensions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00Cleaning by methods involving the use of air flow or gas flow
    • B08B5/04Cleaning by suction, with or without auxiliary action
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/20Undercarriages with or without wheels
    • F16M11/24Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/28Undercarriages for supports with one single telescoping pillar
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N39/00Arrangements for conditioning of lubricants in the lubricating system
    • F16N39/06Arrangements for conditioning of lubricants in the lubricating system by filtration
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N7/00Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/38Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00Component parts of measuring arrangements not specially adapted for a specific variable
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/30Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00Supporting structures for PV modules
    • H02S20/30Supporting structures being movable or adjustable, e.g. for angle adjustment
    • H02S20/32Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30Electrical components
    • H02S40/38Energy storage means, e.g. batteries, structurally associated with PV modules
    • G01N15/075
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The invention discloses a dust monitoring device and a monitoring method based on a construction site, wherein the dust monitoring device comprises a bottom box, a driver, a lifting column and an adjusting column, the driver is arranged at the top of the bottom box, the lifting column is arranged at the top of the driver in a penetrating way, the adjusting column is arranged at the top of the lifting column, a fixed shaft is arranged on the outer wall of the adjusting column, a connecting block is arranged on the outer wall of the fixed shaft, and a solar panel is arranged at the top of the connecting block. According to the solar energy-saving device, the solar energy-saving function can be achieved through the solar energy panel, the solar energy panel is placed on the ground of a construction site, solar energy is converted into electric energy by the solar energy panel and is stored in the energy storage battery, when the angle of the solar energy panel is adjusted, the first motor rotates to drive the first winding shaft and the second winding shaft to rotate, one side of the cable is tightened, the other side of the cable is relaxed, the solar energy panel rotates around the fixed shaft, and the solar energy panel can always face the sun, so that the energy-saving function is achieved.

Description

Dust monitoring device and dust monitoring method based on construction site
Technical Field
The invention relates to the technical field of dust monitoring, in particular to a dust monitoring device and a dust monitoring method based on a construction site.
Background
The dust detector is an on-line monitoring system for measuring the concentration and noise degree of particles in the surrounding environment based on a light scattering counting method and a sound sensing technology, mainly aims at building sites, is based on the Internet of things and artificial intelligence technology, collects and transmits data from detection sensors (PM 2.5, PM10, noise, self wind speed, wind direction and the like) in various environments in real time, displays hundreds of data on a platform PC and a mobile terminal in real time according to requirements, is convenient for a supervisor to monitor the real-time environmental data of the sites in a remote way, and makes a decision in time, is suitable for the sites of building sites, removing sites, coal mines, industrial parks, communities, urban environments, residential communities, sand and coal yards and the like, can monitor the change of the concentration of the particles in the sites in real time through a wireless or wired network by combining a video monitoring system and a weather system, transmits the monitored data to a cloud service platform and a central monitoring room in real time, and a manager accesses the cloud service platform through terminals such as a computer, a mobile phone and the like to monitor the urban monitoring data in real-time, and analyzes the urban monitoring data in real-time.
The existing dust monitoring equipment has the following defects:
1. patent document US20160265914A1 discloses a monitoring environment, which discloses that "the technology relates to a system and a method for monitoring an environment. The method includes receiving first and second sets of data from a plurality of mobile units, wherein the first set of data is associated with a first time indicator, the second set of data is associated with a second time indicator, and each mobile unit includes: the system comprises a position determining device configured to generate position data associated with the position of the mobile unit in the environment, and a laser scanning device configured to generate scanning data based on scanning of at least part of the environment, determine a first parameter associated with the first set of data, determine a second parameter corresponding to the first parameter and associated with the second set of data, and determine a difference between the first and second parameters, wherein when monitoring equipment is used in a construction site, power supply to the monitoring equipment is required to be kept at all times, so that larger power waste is caused, the construction environment is mostly open air, solar energy can be utilized to supply power to the device, and energy consumption is reduced;
2. the patent document JPH01197825a discloses environmental monitoring, which discloses the "purpose: by deriving a temperature gradient from the ambient temperature of the computer system detected by the temperature detecting means, an abnormality of the ambient temperature caused by a malfunction of the air conditioning apparatus is detected early, and whether the ambient temperature reaches an allowable temperature range is discriminated based on the temperature gradient. The composition is as follows: when the ambient temperature of the computer system detected by the temperature detecting means (a) does not enter the allowable temperature range due to abnormality of the air conditioning apparatus or the like, the abnormality of the ambient temperature can be detected at an early stage by the alarm of the alarm means (e). On the other hand, when the ambient temperature has a tendency to enter the allowable temperature range, the arrival time of the ambient temperature to the allowable temperature range can be predicted, and the capacity shortage or the like of the air conditioning apparatus can be detected at an early stage. In this way, it is possible to predict an abnormality in the ambient temperature detected early and to predict the time when the temperature reaches the allowable temperature range ", most of the position directions of the monitoring devices are fixed when the monitoring devices are used at the construction site, resulting in the detected structure having a single nature, not being comprehensive enough, and requiring adjustment thereof;
3. patent document EP3192060A2 discloses an environment monitoring apparatus and method, which discloses that an interface mechanism in a system receives a service request for a service associated with an environment from an electronic device of an entity. In response to a service request, a control mechanism in the system identifies an environmental monitoring device within the environment, wherein the environmental monitoring device provides sensor data representative of an environmental condition in the environment, and the environmental monitoring device is distinct from the second entity and a third entity associated with the system. In addition, the control mechanism provides a data request for sensor data to the environmental monitoring device via the interface mechanism. Further, in response to the data request, the interface mechanism receives sensor data from the environmental monitoring device. Then, the control mechanism provides service for the entity according to the environmental conditions, when the monitoring equipment is used, more transmission parts are contained in the monitoring equipment, abrasion can occur after long-term use, the monitoring equipment needs to be lubricated regularly, and the workload of staff is increased;
4. patent document KR1020140059355a discloses environmental air pollution environmental monitoring and management, which discloses "the present invention relates to a system and method for monitoring and managing the environment of a ship radio blanket area, comprising the steps of: the sensor detects the temperature, dissolved oxygen, noise and dust in the steel structure of the ship, performs digital interface and A/D conversion with the sensor through a sensor interface and an A/D conversion circuit, performs signal processing such as ultrasonic conversion of a sensor signal of A/D conversion, etc. to communicate with another device, communicates a steel structure communication part and transmits a signal to a data management base station through a medium of the steel structure, and data compresses the signal transmitted through the wireless communication part from the wireless communication part and stores the signal in a database of the data management base station, issues an environmental improvement instruction warning of danger and outputting dangerous situations through data analysis and judges whether the environmental condition of a worker is dangerous, receives a control command from the data management base station and prevents harmful gases, provides oxygen from the environmental improvement processing part, monitors the use of the device in the construction environment, easily accumulates dust on the outer surface or other parts of the device, affects the cleanliness of the device, and for this reason, the device needs to be cleaned.
Disclosure of Invention
The invention aims to provide a dust monitoring device and a dust monitoring method based on a construction site, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a raise dust monitoring devices based on job site, includes base box, driver, lifting column and regulation post, the driver is installed at the top of base box, the lifting column is installed in the top penetration of driver, the regulation post is installed at the top of lifting column, the fixed axle is installed to the outer wall of regulation post, the connecting block is installed to the outer wall of fixed axle, solar panel is installed at the top of connecting block.
Preferably, the display screen is installed in the front of the base box, a plurality of control buttons are installed in the front of the base box, the box door is installed on the outer wall of the base box, the handle is installed on the outer wall of the box door, the dust collection box is installed on the inner bottom wall of the base box, the lubrication box is installed on the inner bottom wall of the base box, and a plurality of warning lamps are installed at the top of the base box.
Preferably, two groups of driving motors are installed on the inner bottom wall of the bottom box, a driving shaft is installed at the output end of the driving motor, a driving wheel is installed at one end of the driving shaft, a guiding wheel is installed at the bottom of the bottom box, a prompting screen is installed on the front surface of the outer wall of the lifting column, and a detector is installed on the back surface of the lifting column.
Preferably, the first motor is installed to the inside diapire of adjusting the post, and first bevel gear is installed to the bottom of adjusting the post, and first receipts spool is installed to the output of first motor, and the division board is installed to the inner wall of adjusting the post, and the second receipts spool is installed at the top of division board, and the bottom of second receipts spool is connected with the top of first receipts spool, and two sets of pulleys are installed to the outer wall of adjusting the post, and two sets of solid fixed rings are installed to the bottom of solar panel.
Preferably, the lubrication box is located one side of dust collection box, the both sides outer wall of end box is extended to the one end of drive shaft, two sets of solid fixed rings pass through the cable with first receipts spool and second receipts spool respectively and are connected, the pulley is passed through to the one end of cable, the protective housing is installed to the outer wall of driver, the second motor is installed to the inside back wall of protective housing, drive gear is installed to the output of second motor, the fixed shell is installed to one side inner wall of driver, electric telescopic handle is installed to the inner wall of fixed shell, the gag lever post is installed to electric telescopic handle's one end, the outer wall of lifting column is equipped with the gear groove, the back of lifting column is equipped with a plurality of jacks that match with the gag lever post, the slide rail is installed to the outer wall of lifting column, the both sides inner wall of driver all is equipped with the spout that matches with the slide rail.
Preferably, a third motor is installed on the inner wall of the lifting column, a second bevel gear is installed at the output end of the third motor, the second bevel gear is meshed with the first bevel gear, and a spray pipe is installed on the inner wall of the lifting column.
Preferably, the detection post is installed at the top of detector, detects the outer wall of post and installs a plurality of flabellum, and temperature sensor is installed at the top of detector, and humidity transducer is installed at the top of detector, and the detecting tube is installed at the top of detector, and the beta ray detection case is installed to the inside roof of detector, and the inside that the one end of detecting tube extended into the beta ray detection case, and energy storage battery is installed to the inside diapire of detector, and energy storage battery and solar panel pass through wire electric connection.
Preferably, the aspiration pump is installed at the top of dust collection box, and the input of aspiration pump extends into the inside of dust collection box, and first signal receiver is installed to the outer wall of aspiration pump, and dust collection coil is installed in the outer wall penetration of dust collection box, and the riser is installed to the inner wall of dust collection box, and a plurality of interception nets are installed to the outer wall of riser, and the input of aspiration pump is located one side of riser, and the transparent cover is installed to the inner wall of dust collection box, and the lamp light source is installed to the inner wall of transparent cover, and luminance sensor is installed to the outer wall of riser.
Preferably, the filter screen is installed to the inner wall of lubrication box, the water pump is installed at the top of lubrication box, and the input of water pump extends into the inside of lubrication box, the input of water pump is located the below of filter screen, the second signal receiver is installed to the outer wall of water pump, the attention device is installed to the inside roof of lubrication box, reset spring is installed to the inside diapire of attention device, the lifter plate of T type is installed at reset spring's top, the floater is connected with through the cable in the bottom of lifter plate, the dead lever is installed at the top of lifter plate, the conducting block is installed to the outer wall of dead lever, buzzer is all installed to the both sides inner wall of attention device.
Preferably, the monitoring device is used as follows:
s1, placing the device on the ground of a construction site, converting solar energy into electric energy by a solar panel, storing the electric energy in an energy storage battery, and when the angle of the solar panel is regulated, driving a first winding shaft and a second winding shaft to rotate by rotation of a first motor, so that one side of cables are tightened, the other side of cables are relaxed, and the solar panel rotates around a fixed shaft, so that the solar panel can always face the sun, and the energy saving function is realized;
s2, when the height of the device is adjusted, the second motor rotates to drive the driving gear to rotate, the driving gear rotates to drive the gear groove to move, the gear groove moves to drive the lifting column to rise, the sliding rail on the outer wall of the lifting column moves in the sliding groove in the driver to prevent the lifting column from shifting, after the height is adjusted, the electric telescopic rod stretches to drive the limiting rod to stretch out, the limiting rod is inserted into the inserting hole on the outer wall of the lifting column, the height of the lifting column is fixed, when the height is reduced, the electric telescopic rod contracts, the second motor reverses, the height can be reduced, and the adjusting function is realized;
s3, when the transmission structure in the device is lubricated, the water pump works to pump out lubricating oil in the lubricating box, the filter screen can prevent impurities from entering the water pump, and then the lubricating oil is sprayed to the gear part through the spraying pipe, so that a lubricating function is realized;
s4, when the device is cleaned, the dust collecting coil is taken out, the dust collecting coil is moved to a part of the device, which needs to be cleaned, then the air pump works, the dust collecting coil sucks dust into the dust collecting box under the internal negative pressure of the dust collecting box, the interception net can prevent the dust from entering the dust collecting box, and the dust is accumulated in the dust collecting box, so that the cleaning function of the device is realized.
Preferably, the step S1 further comprises the following steps;
s11, when the solar panel does not contact sunlight, the two groups of driving motors drive the driving shafts and the driving wheels to rotate, so that the driving wheels and the guiding wheels drive the device to move on a construction site, and the shielding object is bypassed, so that the solar panel can continuously absorb sunlight, and the energy-saving function is realized;
the step S2 also comprises the following steps;
s21, when the solar panel rotates in the horizontal direction, the third motor rotates to drive the second bevel gear to rotate, and the second bevel gear drives the first bevel gear to rotate, so that the adjusting column rotates, the solar panel can rotate in the horizontal direction, and the adjusting function is realized;
the step S3 also comprises the following steps;
s31, when the content of lubricating oil is reduced, the floating ball descends, the lubricating oil does not generate buoyancy to the floating ball any more, the floating ball pulls the lifting plate to descend, the reset spring contracts, the fixed rod drives the conductive block to contact with the buzzer, and the buzzer gives out sound warning to remind workers of timely adding;
the step S4 also comprises the following steps;
s41, when dust is collected, light emitted by the light source is shielded by the dust, so that the brightness sensor cannot receive signals of the light source, and the signals are displayed through a display screen to remind workers;
s42, the fan blades and the detection columns can detect wind speed, the temperature sensor and the humidity sensor detect the temperature and the humidity of a construction site, the beta ray detection box detects dust content, the dust content is displayed through the prompt screen, and the warning lamp is always on to remind surrounding personnel at night.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the solar energy-saving device, the solar energy-saving function can be realized by installing the solar panel, the solar panel converts solar energy into electric energy to be stored in the energy storage battery, when the angle of the solar panel is regulated, the first motor rotates to drive the first winding shaft and the second winding shaft to rotate, so that one side of cables are tightened, the other side of cables are relaxed, the solar panel rotates around the fixed shaft, and the solar panel can always face the sun, so that the energy-saving function is realized;
2. according to the invention, the height of the device can be adjusted by installing the driver and the lifting column, the second motor rotates to drive the driving gear to rotate, the driving gear rotates to drive the gear groove to move, the gear groove moves to drive the lifting column to rise, the sliding rail on the outer wall of the lifting column moves in the sliding groove in the driver to prevent the lifting column from shifting, after the height is adjusted, the electric telescopic rod stretches to drive the limiting rod to extend out, the limiting rod is inserted into the jack on the outer wall of the lifting column, the height of the lifting column is fixed, when the height is reduced, the electric telescopic rod contracts, the second motor reverses, the height can be reduced, and the adjusting function is realized;
3. the lubricating box is arranged to lubricate the inside of the device, when the transmission structure in the device is lubricated, the water pump works to pump out lubricating oil in the lubricating box, the filter screen can prevent impurities from entering the water pump, and then the lubricating oil is sprayed to the gear part through the spraying pipe, so that the lubricating function is realized;
4. when the dust collection box is arranged to clean the device, the dust collection coil pipe is firstly taken out, the dust collection coil pipe is moved to a part of the device, which needs to be dedusted, then the air pump works, the dust collection coil pipe sucks dust into the dust collection box under the internal negative pressure of the dust collection box, the interception net can prevent the dust from entering the air pump, and the dust is accumulated in the dust collection box, so that the cleaning function of the device is realized.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a detector portion of the present invention;
FIG. 3 is a schematic diagram of the internal structure of the detector according to the present invention;
FIG. 4 is a schematic view of a portion of the bottom box of the present invention;
FIG. 5 is a schematic view of a portion of the structure of the warning device according to the present invention;
FIG. 6 is a schematic view of a portion of a solar panel according to the present invention;
FIG. 7 is a schematic view of a portion of a lifting column according to the present invention;
fig. 8 is a schematic diagram of a portion of a driver according to the present invention.
In the figure: 1. a bottom box; 2. a display screen; 3. a control knob; 4. a door; 5. a handle; 6. a warning light; 7. a driving motor; 8. a driving wheel; 9. a driver; 10. a protective shell; 11. a second motor; 12. a drive gear; 13. a fixed case; 14. an electric telescopic rod; 15. a limit rod; 16. lifting columns; 17. a gear groove; 18. a slide rail; 19. a third motor; 20. a second bevel gear; 21. a spray tube; 22. an adjusting column; 23. a first bevel gear; 24. a first motor; 25. a first take-up spool; 26. a partition plate; 27. a second take-up spool; 28. a pulley; 29. a fixed shaft; 30. a connecting block; 31. a solar panel; 32. a prompting screen; 33. a detector; 34. a detection column; 35. a fan blade; 36. a temperature sensor; 37. a humidity sensor; 38. a detection tube; 39. a beta ray detection box; 40. an energy storage battery; 41. a dust collection box; 42. an air extracting pump; 43. a first signal receiver; 44. a dust collection coil; 45. a riser; 46. an interception net; 47. a transparent cover; 48. a lamp light source; 49. a brightness sensor; 50. a lubrication box; 51. a filter screen; 52. a water pump; 53. a second signal receiver; 54. an alarm; 55. a return spring; 56. a lifting plate; 57. a floating ball; 58. a fixed rod; 59. a conductive block; 60. a buzzer.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, 6, 7 and 8, an embodiment of the present invention is provided: the utility model provides a dust monitoring devices based on job site, includes base box 1, driver 9, lifting column 16 and adjusting column 22, driver 9 is installed at the top of base box 1, lifting column 16 is installed in the top penetration of driver 9, adjusting column 22 is installed at the top of lifting column 16, fixed axle 29 is installed to the outer wall of adjusting column 22, connecting block 30 is installed to the outer wall of fixed axle 29, solar panel 31 is installed at the top of connecting block 30, display screen 2 is installed in the front of base box 1, a plurality of control buttons 3 are installed in the front of base box 1, chamber door 4 is installed to the outer wall of base box 1, handle 5 is installed to the outer wall of chamber door 4, dust collection box 41 is installed to the inner bottom wall of base box 1, lubricating box 50 is installed to the inner bottom wall of base box 1, a plurality of warning lamps 6 are installed at the top of base box 1, two sets of driving motor 7 are installed to the inner bottom wall of base box 1, the output end of the driving motor 7 is provided with a driving shaft, one end of the driving shaft is provided with a driving wheel 8, the bottom of the bottom box 1 is provided with a guiding wheel, the front surface of the outer wall of the lifting column 16 is provided with a prompt screen 32, the back surface of the lifting column 16 is provided with a detector 33, the inner bottom wall of the regulating column 22 is provided with a first motor 24, the bottom of the regulating column 22 is provided with a first bevel gear 23, the output end of the first motor 24 is provided with a first take-up shaft 25, the inner wall of the regulating column 22 is provided with a separation plate 26, the top of the separation plate 26 is provided with a second take-up shaft 27, the bottom of the second take-up shaft 27 is connected with the top of the first take-up shaft 25, the outer wall of the regulating column 22 is provided with two groups of pulleys 28, the bottom of the solar panel 31 is provided with two groups of fixed rings, the lubrication box 50 is positioned on one side of the dust box 41, one end of the driving shaft extends out of the outer walls of the two sides of the bottom box 1, the two groups of fixed rings are respectively connected with a first winding shaft 25 and a second winding shaft 27 through cables, one ends of the cables pass through pulleys 28, a protective shell 10 is installed on the outer wall of a driver 9, a second motor 11 is installed on the inner rear wall of the protective shell 10, a driving gear 12 is installed at the output end of the second motor 11, a fixed shell 13 is installed on the inner wall of one side of the driver 9, an electric telescopic rod 14 is installed on the inner wall of the fixed shell 13, a limiting rod 15 is installed at one end of the electric telescopic rod 14, a gear groove 17 is formed in the outer wall of a lifting column 16, a plurality of jacks matched with the limiting rod 15 are formed in the back surface of the lifting column 16, sliding rails 18 are installed on the outer wall of the lifting column 16, sliding grooves matched with the sliding rails 18 are formed in the inner walls of two sides of the driver 9, a third motor 19 is installed on the inner wall of the lifting column 16, a second bevel gear 20 is installed at the output end of the third motor 19, the second bevel gear 20 is meshed with a first bevel gear 23, and a spraying pipe 21 is installed on the inner wall of the lifting column 16.
Referring to fig. 1, 2 and 3, the detector 33 has a top mounted with a detecting column 34, an outer wall of the detecting column 34 is mounted with a plurality of fan blades 35, the top of the detector 33 is mounted with a temperature sensor 36, the top of the detector 33 is mounted with a humidity sensor 37, the top of the detector 33 is mounted with a detecting tube 38, an inner top wall of the detector 33 is mounted with a beta-ray detecting box 39, one end of the detecting tube 38 extends into the inside of the beta-ray detecting box 39, an inner bottom wall of the detector 33 is mounted with an energy storage battery 40, and the energy storage battery 40 is electrically connected with the solar panel 31 through wires.
Referring to fig. 4, the suction pump 42 is installed at the top of the dust box 41, and the input end of the suction pump 42 extends into the dust box 41, the first signal receiver 43 is installed on the outer wall of the suction pump 42, the dust collecting coil 44 is installed on the outer wall of the dust box 41 in a penetrating manner, the vertical plate 45 is installed on the inner wall of the dust box 41, the plurality of interception nets 46 are installed on the outer wall of the vertical plate 45, and the input end of the suction pump 42 is located at one side of the vertical plate 45, the transparent cover 47 is installed on the inner wall of the dust box 41, the light source 48 is installed on the inner wall of the transparent cover 47, and the brightness sensor 49 is installed on the outer wall of the vertical plate 45.
Referring to fig. 4 and 5, the filter screen 51 is installed on the inner wall of the lubrication box 50, the water pump 52 is installed on the top of the lubrication box 50, the input end of the water pump 52 extends into the lubrication box 50, the input end of the water pump 52 is located below the filter screen 51, the second signal receiver 53 is installed on the outer wall of the water pump 52, the warning device 54 is installed on the inner top wall of the lubrication box 50, the reset spring 55 is installed on the inner bottom wall of the warning device 54, the T-shaped lifting plate 56 is installed on the top of the reset spring 55, the floating ball 57 is connected to the bottom of the lifting plate 56 through a cable, the fixing rod 58 is installed on the top of the lifting plate 56, the conductive block 59 is installed on the outer wall of the fixing rod 58, and the buzzer 60 is installed on the inner walls of both sides of the warning device 54.
The use steps of the monitoring device are as follows:
s1, placing the device on the ground of a construction site, converting solar energy into electric energy by a solar panel 31, storing the electric energy in an energy storage battery 40, and when the angle of the solar panel 31 is regulated, driving a first winding shaft 25 and a second winding shaft 27 to rotate by rotation of a first motor 24, so that one side of cables are tightened, the other side of cables are relaxed, and the solar panel 31 rotates around a fixed shaft 29, so that the solar panel 31 can always face the sun, and the energy-saving function is realized;
s2, when the height of the device is adjusted, the second motor 11 rotates to drive the driving gear 12 to rotate, the driving gear 12 rotates to drive the gear groove 17 to move, the gear groove 17 moves to drive the lifting column 16 to rise, the sliding rail 18 on the outer wall of the lifting column 16 moves in the sliding groove in the driver 9 to prevent the lifting column 16 from shifting, after the height is adjusted, the electric telescopic rod 14 stretches to drive the limiting rod 15 to stretch out, the limiting rod 15 is inserted into the insertion hole on the outer wall of the lifting column 16, the height of the lifting column 16 is fixed, when the height is reduced, the electric telescopic rod 14 contracts, the second motor 11 reverses, the height can be reduced, and the adjusting function is realized;
s3, when the transmission structure in the device is lubricated, the water pump 52 works to pump out the lubricating oil in the lubricating box 50, the filter screen 51 can prevent impurities from entering the water pump 52, and then the lubricating oil is sprayed to the gear part through the spraying pipe 21, so that the lubricating function is realized;
s4, when the device is cleaned, firstly, the dust collecting coil 44 is taken out, the dust collecting coil 44 is moved to a part of the device, which needs to be cleaned, then the air pump 42 works, the dust collecting coil 44 sucks dust into the dust collecting box 41 under the internal negative pressure of the dust collecting box 41, the interception net 46 can prevent the dust from entering the air pump 42, and the dust is accumulated in the dust collecting box 41, so that the cleaning function of the device is realized.
The step S1 also comprises the following steps of;
s11, when the solar panel 31 is not in contact with sunlight, the two groups of driving motors 7 drive the driving shafts and the driving wheels 8 to rotate, so that the driving wheels 8 and the guiding wheels drive the device to move on a construction site, and a shielding object is bypassed, so that the solar panel 31 can continuously absorb sunlight, and an energy-saving function is realized;
the step S2 also comprises the following steps;
s21, when the solar panel 31 rotates in the horizontal direction, the third motor 19 rotates to drive the second bevel gear 20 to rotate, and the second bevel gear 20 drives the first bevel gear 23 to rotate, so that the adjusting column 22 rotates, and the solar panel 31 can rotate in the horizontal direction, and an adjusting function is realized;
the step S3 also comprises the following steps;
s31, when the content of lubricating oil is reduced, the floating ball 57 descends, the lubricating oil does not generate buoyancy to the floating ball 57 any more, the floating ball 57 pulls the lifting plate 56 to descend, the reset spring 55 contracts, the fixed rod 58 drives the conductive block 59 to contact with the buzzer 60, and the buzzer 60 gives out sound warning to remind workers of timely adding;
the step S4 also comprises the following steps;
s41, when dust is collected, light emitted by the lamp light source 48 is shielded by the dust, so that the brightness sensor 49 cannot receive signals of the lamp light source 48, and the signals are displayed through the display screen 2 to remind workers;
s42, fan blade 35 and detect post 34 can detect the wind speed, and temperature sensor 36 and humidity transducer 37 detect the temperature and the humidity of building site, and beta ray detection case 39 detects the raise dust content, demonstrates through suggestion screen 32, and warning light 6 is bright often can remind surrounding personnel at night.
The working principle is that the solar panel 31 converts solar energy into electric energy to be stored in the energy storage battery 40 when the solar panel 31 is placed on the ground of a construction site, when the angle of the solar panel 31 is adjusted, the first motor 24 rotates to drive the first winding shaft 25 and the second winding shaft 27 to rotate, so that one side of cables are tightened, the other side of cables are relaxed, the solar panel 31 rotates around the fixed shaft 29, the solar panel 31 can always face the sun, the energy-saving function is realized, when the solar panel 31 does not contact sunlight, the two groups of driving motors 7 drive the driving shaft and the driving wheel 8 to rotate, the driving wheel 8 and the guiding wheel drive device move on the construction site, the shielding object is wound off, and the solar panel 31 can continuously absorb sunlight, and the energy-saving function is realized;
when the height of the device is adjusted, the second motor 11 rotates to drive the driving gear 12 to rotate, the driving gear 12 rotates to drive the gear groove 17 to move, the gear groove 17 moves to drive the lifting column 16 to rise, the sliding rail 18 on the outer wall of the lifting column 16 moves in the sliding groove in the driver 9 to prevent the lifting column 16 from shifting, after the height is adjusted, the electric telescopic rod 14 stretches to drive the limiting rod 15 to stretch out, the limiting rod 15 is inserted into the inserting hole on the outer wall of the lifting column 16, the height of the lifting column 16 is fixed, when the height is reduced, the electric telescopic rod 14 contracts, the second motor 11 reverses, the height can be reduced, the adjusting function is realized, when the solar panel 31 is rotated in the horizontal direction, the third motor 19 rotates to drive the second bevel gear 20 to rotate, the first bevel gear 23 is driven to rotate the adjusting column 22, and therefore the solar panel 31 can rotate in the horizontal direction, and the adjusting function is realized;
when the transmission structure in the device is lubricated, the water pump 52 works to pump out lubricating oil in the lubricating box 50, the filter screen 51 can prevent impurities from entering the water pump 52, then the lubricating oil is sprayed to the gear part through the spraying pipe 21 to realize a lubricating function, when the content of the lubricating oil is reduced, the floating ball 57 descends, the floating ball 57 does not generate buoyancy, the floating ball 57 pulls the lifting plate 56 to descend, the reset spring 55 contracts, the fixing rod 58 drives the conductive block 59 to contact with the buzzer 60, and the buzzer 60 gives out sound warning to remind workers of timely adding the lubricating oil;
when the device is cleaned, the dust collecting coil 44 is firstly taken out, the dust collecting coil 44 is moved to a part of the device, which needs to be cleaned, then the air pump 42 works, the dust collecting coil 44 sucks dust into the dust collecting box 41 under the internal negative pressure of the dust collecting box 41, the interception net 46 can prevent the dust from entering the air pump 42, the dust is accumulated in the dust collecting box 41, the cleaning function of the device is realized, when the dust is fully collected, the light emitted by the light source 48 is blocked by the dust, the brightness sensor 49 can not receive the signal of the light source 48, the light is displayed through the display screen 2, a worker is reminded, the fan blade 35 and the detection column 34 can detect the wind speed, the temperature sensor 36 and the humidity sensor 37 detect the temperature and the humidity of the construction site, the beta ray detection box 39 detects the dust content, the alarm lamp 6 is displayed through the prompting screen 32, and the surrounding personnel can be reminded when the alarm lamp 6 is always on at night.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (9)

1. Dust monitoring devices based on job site, including base box (1), driver (9), lifting column (16) and adjusting column (22), its characterized in that: the utility model discloses a solar energy collection device, including base case (1), fixed axle (29) are installed at the top of base case (1), lift post (16) are installed in the top penetration of driver (9), adjust post (22) are installed at the top of lift post (16), fixed axle (30) are installed to the outer wall of adjust post (22), solar panel (31) are installed at the top of connecting block (30), first motor (24) are installed to the inside diapire of adjust post (22), first bevel gear (23) are installed to the bottom of adjust post (22), first receipts spool (25) are installed to the output of first motor (24), division board (26) are installed to the inner wall of adjust post (22), second receipts spool (27) are installed at the top of division board (26), and the bottom of second receipts spool (27) is connected with the top of first receipts spool (25), and two sets of pulleys (28) are installed to the outer wall of adjust post (22), and two sets of solid fixed rings are installed to the bottom of solar panel (31).
2. The construction site-based dust monitoring device according to claim 1, wherein: the front of base case (1) is installed display screen (2), and a plurality of control buttons (3) are installed in the front of base case (1), and chamber door (4) are installed to the outer wall of base case (1), and handle (5) are installed to the outer wall of chamber door (4), and dust collection box (41) are installed to the inside diapire of base case (1), and lubricating tank (50) are installed to the inside diapire of base case (1), and a plurality of warning lamps (6) are installed at the top of base case (1).
3. The construction site-based dust monitoring device according to claim 2, wherein: two groups of driving motors (7) are installed on the inner bottom wall of the bottom box (1), a driving shaft is installed at the output end of each driving motor (7), a driving wheel (8) is installed at one end of each driving shaft, guide wheels are installed at the bottom of the bottom box (1), a prompt screen (32) is installed on the front surface of the outer wall of each lifting column (16), and a detector (33) is installed on the back surface of each lifting column (16).
4. A dust monitoring device based on a construction site according to claim 2 or 3, characterized in that: the utility model discloses a dust collection box, including dust collection box (41), lubrication box (50), motor (9), gear box (18) are installed to the outer wall of drive (9), drive gear (12) are installed to the inside back wall of protective housing (10), fixed shell (13) are installed to the one side inner wall of drive (9), electric telescopic handle (14) are installed to the inner wall of fixed shell (13), gag lever post (15) are installed to the one end of electric telescopic handle (14), the outer wall of lifting column (16) is equipped with gear groove (17), the back of lifting column (16) is equipped with a plurality of jack that match with gag lever post (15), slide rail (18) are installed to the outer wall of lifting column (16), slide rail (18) are all equipped with the spout that matches with slide rail (18) to the both sides inner wall of drive (9).
5. The construction site-based dust monitoring device according to claim 1, wherein: the inner wall of the lifting column (16) is provided with a third motor (19), the output end of the third motor (19) is provided with a second bevel gear (20), the second bevel gear (20) is meshed with a first bevel gear (23), and the inner wall of the lifting column (16) is provided with a spray pipe (21).
6. A dust monitoring device based on a construction site according to claim 3, characterized in that: the utility model discloses a solar panel, including detector (33), temperature sensor (36), humidity transducer (37), beta ray detection case (39), energy storage battery (40) and solar panel (31) are installed at the top of detector (33), detect post (34) is installed at the top of detector (33), detect the outer wall of post (34), temperature sensor (36) is installed at the top of detector (33), detect pipe (38) is installed at the top of detector (33), beta ray detection case (39) are installed to the inside roof of detector (33), and the inside of beta ray detection case (39) is extended to the one end of detect pipe (38), energy storage battery (40) are installed to the inside diapire of detector (33), and energy storage battery (40) and solar panel (31) pass through wire electric connection.
7. The construction site-based dust monitoring device according to claim 2, wherein: the top of dust collection box (41) is installed aspiration pump (42), and the input of aspiration pump (42) extends into the inside of dust collection box (41), first signal receiver (43) are installed to the outer wall of aspiration pump (42), dust collection coil (44) are installed in the outer wall penetration of dust collection box (41), riser (45) are installed to the inner wall of dust collection box (41), a plurality of interception nets (46) are installed to the outer wall of riser (45), and the input of aspiration pump (42) is located one side of riser (45), transparent cover (47) are installed to the inner wall of dust collection box (41), lamp light source (48) are installed to the inner wall of transparent cover (47), luminance sensor (49) are installed to the outer wall of riser (45).
8. The construction site-based dust monitoring device according to claim 2, wherein: the filter screen (51) is installed to the inner wall of lubrication box (50), water pump (52) is installed at the top of lubrication box (50), and the input of water pump (52) extends into the inside of lubrication box (50), the input of water pump (52) is located the below of filter screen (51), second signal receiver (53) is installed to the outer wall of water pump (52), alarm (54) are installed to the inside roof of lubrication box (50), reset spring (55) are installed to the inside diapire of alarm (54), lifter plate (56) of T type are installed at the top of reset spring (55), floater (57) are connected with through the cable in the bottom of lifter plate (56), dead lever (58) are installed at the top of lifter plate (56), conducting block (59) are installed to the outer wall of dead lever (58), buzzer (60) are all installed to the both sides inner wall of alarm (54).
9. A method for monitoring a dust-raising monitoring device on a construction site according to any one of claims 1-8, characterized in that the monitoring device is used as follows:
s1, placing the device on the ground of a construction site, converting solar energy into electric energy by a solar panel (31) and storing the electric energy in an energy storage battery (40), and when the angle of the solar panel (31) is regulated, driving a first winding shaft (25) and a second winding shaft (27) to rotate by rotation of a first motor (24) so that one side of cables are tightened, the other side of cables are relaxed, and the solar panel (31) rotates around a fixed shaft (29) so that the solar panel (31) can always face the sun, thereby realizing an energy-saving function;
s2, when the height of the device is adjusted, the second motor (11) rotates to drive the driving gear (12) to rotate, the driving gear (12) rotates to drive the gear groove (17) to move, the gear groove (17) moves to drive the lifting column (16) to rise, the sliding rail (18) on the outer wall of the lifting column (16) moves in the sliding groove in the driver (9), the lifting column (16) is prevented from shifting, after the height is adjusted, the electric telescopic rod (14) stretches to drive the limiting rod (15) to stretch out, the limiting rod (15) is inserted into the insertion hole on the outer wall of the lifting column (16), the height of the lifting column (16) is fixed, and when the height is reduced, the electric telescopic rod (14) contracts, the second motor (11) reverses, so that the height can be reduced, and the adjusting function is realized;
s3, when a transmission structure in the device is lubricated, the water pump (52) works to pump out lubricating oil in the lubricating box (50), the filter screen (51) can prevent impurities from entering the water pump (52), and then the lubricating oil is sprayed to the gear part through the spraying pipe (21) to realize a lubricating function;
s4, when the device is cleaned, firstly, the dust collecting coil pipe (44) is taken out, the dust collecting coil pipe (44) is moved to a part of the device, which needs to be cleaned, then the air pump (42) works, the dust collecting coil pipe (44) sucks dust into the dust collecting box (41) under the internal negative pressure of the dust collecting box (41), the interception net (46) can prevent the dust from entering the air pump (42), and the dust is accumulated in the dust collecting box (41) to realize the cleaning function of the device;
the step S1 also comprises the following steps;
s11, when the solar panel (31) is not in contact with sunlight, the two groups of driving motors (7) drive the driving shafts and the driving wheels (8) to rotate, so that the driving wheels (8) and the guiding wheels drive the device to move on a construction site, and a shielding object is bypassed, so that the solar panel (31) can continuously absorb sunlight, and an energy-saving function is realized;
the step S2 also comprises the following steps;
s21, when the solar panel (31) rotates in the horizontal direction, the third motor (19) rotates to drive the second bevel gear (20) to rotate, and the second bevel gear (20) drives the first bevel gear (23) to rotate, so that the adjusting column (22) rotates, and the solar panel (31) can rotate in the horizontal direction, and an adjusting function is realized;
the step S3 also comprises the following steps;
s31, when the content of lubricating oil is reduced, the floating ball (57) descends, the lubricating oil does not generate buoyancy to the floating ball (57), the floating ball (57) pulls the lifting plate (56) to descend, the reset spring (55) contracts, the fixed rod (58) drives the conductive block (59) to contact with the buzzer (60), and the buzzer (60) gives out sound warning to remind workers of timely adding;
the step S4 also comprises the following steps;
s41, when dust is fully collected, light emitted by a light source (48) is shielded by the dust, so that a brightness sensor (49) cannot receive signals of the light source (48), and the signals are displayed through a display screen (2) to remind workers;
s42, flabellum (35) and detect post (34) can detect the wind speed, and temperature sensor (36) and humidity transducer (37) detect the temperature and the humidity of building site, and beta ray detection case (39) detects the raise dust content, demonstrates through suggestion screen (32), and warning light (6) are bright often can remind surrounding personnel at night.
CN202310882313.3A 2023-07-19 2023-07-19 Dust monitoring device and dust monitoring method based on construction site Pending CN116609235A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN202310882313.3A CN116609235A (en) 2023-07-19 2023-07-19 Dust monitoring device and dust monitoring method based on construction site

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CN108801401A (en) * 2018-06-15 2018-11-13 浙江昆博机械制造有限公司 A kind of motor pasta height early warning device
CN209625527U (en) * 2018-07-27 2019-11-12 吕梁学院 A kind of digital education technique teaching device
CN111929205A (en) * 2020-08-06 2020-11-13 深圳市深汕特别合作区智慧城市研究院有限公司 Construction site administers device with portable raise dust monitoring
CN113676121A (en) * 2021-08-04 2021-11-19 深圳索瑞德电子有限公司 Charging device with photovoltaic inverter
CN217260752U (en) * 2021-12-31 2022-08-23 广州銮滢化妆品有限公司 Skin care products finished product packagine machine for packing jar

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108562523A (en) * 2018-05-02 2018-09-21 六安同辉智能科技有限公司 Anti- airborne dust outdoor environment monitoring device
CN108801401A (en) * 2018-06-15 2018-11-13 浙江昆博机械制造有限公司 A kind of motor pasta height early warning device
CN209625527U (en) * 2018-07-27 2019-11-12 吕梁学院 A kind of digital education technique teaching device
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