CN112197859A - Environmental noise monitoring device - Google Patents
Environmental noise monitoring device Download PDFInfo
- Publication number
- CN112197859A CN112197859A CN202011381698.8A CN202011381698A CN112197859A CN 112197859 A CN112197859 A CN 112197859A CN 202011381698 A CN202011381698 A CN 202011381698A CN 112197859 A CN112197859 A CN 112197859A
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- transmission
- belt
- wind power
- receiver
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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- General Physics & Mathematics (AREA)
- Cleaning In General (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses an environmental noise monitoring device, which comprises: the device comprises a vertical rod, a mounting frame arranged at the top of the vertical rod, a receiver rotationally arranged at the left end of the mounting frame, and wind power cleaning devices arranged at the left side and the right side of the receiver and used for cleaning dust on the surface of the receiver; the wind power cleaning device can be blown by strong wind, and the cleaning brush roll rotating on the wind power cleaning device is used for cleaning dust on the surface of the receiver, so that the influence of the dust on the receiver on the noise receiving is avoided; the wind power cleaning device can be driven to be far away from the receiver through the telescopic electric cylinder under the windless or low-wind state, so that the shielding of the receiver is avoided, and the receiving of the receiver to noise is prevented from being influenced.
Description
Technical Field
The invention relates to the technical field of noise monitoring equipment, in particular to an environmental noise monitoring device.
Background
Noise pollution is a perceived public nuisance, which is related to subjective will of people and to the state of life of people, and thus it has characteristics different from other public hazards. Noise pollution is mainly caused by transportation, vehicle whistling, industrial noise, construction, social noise such as concert halls, tweeters, early cities, and loud speaking of people. Therefore, a noise monitoring device is generally installed in a factory or on a road to prevent generation of high decibel noise.
After the existing outdoor noise monitoring equipment is used for a long time, a large amount of dust can be stained on a receiver for receiving noise, the receiver is influenced to receive the noise, and therefore the accuracy of the noise monitoring equipment on the follow-up processing of the noise is influenced.
Disclosure of Invention
In order to improve the problems, the invention is embodied by the following technical scheme: an environmental noise monitoring device: the device comprises a vertical rod, a mounting frame arranged at the top of the vertical rod, a receiver rotationally arranged at the left end of the mounting frame, and wind power cleaning devices arranged at the left side and the right side of the receiver and used for cleaning dust on the surface of the receiver;
the wind power cleaning device comprises an installation seat which is slidably arranged on the top surface of an installation frame, a plurality of cleaning brush rolls which are rotatably arranged on the left side of the installation seat and a second wind power blade which is rotatably arranged on the right side of the installation seat, a transmission box is arranged on the installation frame, a transverse belt conveying mechanism and a longitudinal second belt conveying mechanism are arranged in the transmission box, a central shaft of a belt pulley at the right end of the belt conveying mechanism is fixedly connected with a rotating rod of the second wind power blade, a central shaft of a belt pulley at the left end of the belt conveying mechanism is fixedly connected with the rotating rod of the cleaning brush rolls, the second belt conveying mechanism comprises a plurality of second belt pulleys, the second belt pulley at the foremost end and the belt pulley at the left end of the belt conveying mechanism are the same central shaft, and the central shaft of the second belt pulley is fixedly connected with the rotating rod of the cleaning brush rolls;
the bottom surface of the mounting frame is provided with a wind power rotating mechanism, the wind power rotating mechanism comprises a machine shell fixedly arranged on the mounting frame, a wind guide box is arranged below the machine shell, a wind cavity which is communicated from front to back is formed in the wind guide box, a first wind power blade is arranged in the wind cavity in a rotating mode, a gear set is arranged in the machine shell and comprises a transmission column rotatably arranged in the machine shell, a transmission toothed plate slidably arranged in the machine shell and a driving gear fixedly connected with a rotating rod of the first wind power blade, a transmission toothed groove meshed with the driving gear is formed in the bottom of the transmission column, a transmission half gear is arranged at the top of the transmission column and meshed with the left side of the transmission toothed plate, the right side of the transmission toothed plate is meshed with a driven gear, a plurality of transmission belt wheels are rotatably arranged in the machine shell and connected with the transmission belt, the transmission belt pulley and the driven gear which are arranged at the foremost end of the machine shell are both arranged on the same rotating shaft, the top end of the rotating shaft of the transmission belt pulley is fixedly connected with the earphone mounting seat, and the earphone is detachably arranged on the earphone mounting seat;
the transmission pinion rack includes transmission pinion rack main part, both sides all are provided with the rack around the transmission pinion rack main part, the transmission pinion rack main part passes through slider and casing sliding connection, the slider right-hand member is through first expanding spring and casing inner wall connection, the slider left end passes through second expanding spring and casing inner wall connection, the stiffness coefficient of second expanding spring is greater than first expanding spring's stiffness coefficient.
As a preferred embodiment of the present invention, a monitoring camera, a display screen and an electromechanical box are disposed at the top of the upright rod, the monitoring camera is located above the mounting frame, the display screen and the electromechanical box are located below the mounting frame, a noise detector, an air quality detector and an air speed sensor are disposed on the mounting frame, a processor and a controller are disposed in the electromechanical box, an output end of the receiver is electrically connected to an input end of the noise detector, and output ends of the noise detector, the air speed sensor and the air quality detector are electrically connected to the display screen.
As a preferred embodiment of the invention, an ash beating plate is hinged to the middle position of the mounting seat, the ash beating plate is connected with one end of a return spring, the other end of the return spring is connected with the mounting seat, the ash beating plate is positioned on one side of the cleaning brush roll, and a pressing block capable of extruding the ash beating plate to rotate is arranged on a rotating rod of the cleaning brush roll.
In a preferred embodiment of the invention, the surfaces of the ash beating plate and the press block are both coated with rubber layers.
As a preferred embodiment of the present invention, a sliding plate is fixedly connected to one end of the mounting base, which is away from the earpiece, the sliding plate is connected to a telescopic end of a telescopic electric cylinder on the bottom surface of the mounting base, the output end of the wind speed sensor is further electrically connected to the input end of a processor, the output end of the processor is electrically connected to a controller, and the controller is electrically connected to the telescopic electric cylinder.
As a preferred embodiment of the present invention, both the air inlet and the air outlet of the air cavity are provided with dust filtering nets.
The environmental noise monitoring device has the following two beneficial effects:
firstly, the wind power cleaning device can be blown by strong wind, and dust on the surface of the receiver can be cleaned by the cleaning brush roll rotating on the wind power cleaning device, so that the influence of the dust on the receiver on the noise receiving is avoided.
Secondly, the wind power cleaning device can be driven to be away from the receiver through the telescopic electric cylinder in a windless or low-wind state, so that the shielding of the receiver is avoided, and the receiving of noise by the receiver is prevented from being influenced.
Drawings
FIG. 1 is a schematic overall structure of the present invention;
FIG. 2 is a schematic view of the wind cleaning apparatus of the present invention;
FIG. 3 is a side view of the wind cleaning apparatus of the present invention;
FIG. 4 is a schematic structural view of the wind-powered rotating mechanism of the present invention;
fig. 5 is a schematic view of a plurality of earpieces of the present invention disposed on a mounting block;
fig. 6 is a schematic structural view of the driving toothed plate of the present invention.
In the figure: 1. erecting a rod; 2. a mounting frame; 3. a handset; 4. a wind power rotating mechanism; 5. a wind power cleaning device; 6. a display screen; 7. an electromechanical box;
41. a first wind blade; 42. a driving gear; 43. a drive tooth slot; 44. a transmission half gear; 45. a transmission toothed plate; 46. a driven gear; 47. a drive pulley; 48. a drive belt;
451. a driving toothed plate main body; 452. a rack; 453. a slider; 454. a first extension spring; 455. a second extension spring;
51. a mounting seat; 52. cleaning the brush roll; 53. a transmission case; 54. a second wind blade; 55. plastering plates; 56. briquetting;
531. a belt pulley; 532. a belt; 533. a second pulley.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: an environmental noise monitoring device: comprises a vertical rod 1, a mounting frame 2 arranged at the top of the vertical rod 1, a receiver 3 rotatably arranged at the left end of the mounting frame 2, and wind power cleaning devices 5 arranged at the left side and the right side of the receiver 3 and used for cleaning dust on the surface of the receiver 3; the wind cleaning device 5 is blown by strong wind to work, so that dust on the surface of the receiver 3 is cleaned, and the influence of the dust on the receiver on the noise reception is avoided;
the wind power cleaning device 5 comprises an installation seat 51 arranged on the top surface of the installation frame 2 in a sliding manner, a plurality of cleaning brush rollers 52 arranged on the left side of the installation seat 51 in a rotating manner, and a second wind power blade 54 arranged on the right side of the installation seat 51 in a rotating manner, a transmission box 53 is arranged on the installation frame 2, a transverse belt transmission mechanism and a longitudinal second belt transmission mechanism are arranged in the transmission box 53, the central shaft of a belt pulley 531 at the right end of the belt transmission mechanism is fixedly connected with the rotating rod of the second wind power blade 54, the central shaft of a belt pulley at the left end of the belt transmission mechanism is fixedly connected with the rotating rod of the cleaning brush roller 52, the second belt transmission mechanism comprises a plurality of second belt pulleys 533, the second belt pulley 533 at the foremost end is the same central shaft as the belt pulley 531 at the left end of the belt transmission mechanism, and the central shaft of the second belt pulley 533 is fixedly connected with the rotating rod of the, the two pulleys 531 are connected together through a belt 532; strong wind blows the second wind blade 54 to drive the belt conveying mechanism to rotate, so as to drive the cleaning brush roller 52 at the foremost end of the mounting base 51 to rotate, so as to clean dust on the surface of the receivers at the foremost end of the mounting frame 2, and meanwhile, the second belt wheel 533 drives other cleaning brush rollers 52 on the mounting base 51 to rotate, so as to clean other receivers on the mounting frame 2;
the bottom surface of the mounting frame 2 is provided with a wind power rotating mechanism 4, the wind power rotating mechanism 4 comprises a casing fixedly arranged on the mounting frame 2, a wind guide box is arranged below the casing, a wind cavity which is through from front to back is arranged in the wind guide box, a first wind power blade 41 is arranged in the wind cavity in a rotating manner, a gear set is arranged in the casing and comprises a transmission column rotatably arranged in the casing, a transmission toothed plate 45 slidably arranged in the casing and a driving gear 42 fixedly connected with a rotating rod of the first wind power blade 41, a transmission toothed slot 43 meshed with the driving gear 42 is arranged at the bottom of the transmission column, a transmission half gear 44 is arranged at the top of the transmission column, the transmission half gear 44 is meshed with the left side of the transmission toothed plate 45, the right side of the transmission toothed plate 45 is meshed with a driven gear 46, and a plurality of transmission belt pulleys 47 are arranged in the casing in a, the transmission belt pulleys 47 are connected through a transmission belt 48, the transmission belt pulley 47 and the driven gear 46 which are arranged at the foremost end of the machine shell are both arranged on the same rotating shaft, the top end of the rotating shaft of the transmission belt pulley 47 is fixedly connected with the earphone mounting seat, and the earphone 3 is detachably arranged on the earphone mounting seat; when strong wind passes through the wind cavity, the first wind power blade 41 is blown to rotate, the first wind power blade 41 rotates to drive the gear set in the machine shell to work, the receiver is driven to rotate back and forth, the receiver and the cleaning brush roller 52 rotate reversely, and the cleaning effect on the receiver 3 is improved; the first wind blade 41 rotates to drive the driving gear 42 to rotate, the driving gear 42 drives the transmission column to rotate, the transmission column drives the transmission toothed plate 45 to slide back and forth through the transmission half gear 44, and the transmission toothed plate 45 sliding back and forth cooperates with the driven gear 46 to drive the receiver 3 to rotate back and forth;
the driving toothed plate 45 comprises a driving toothed plate main body 451, racks 452 are arranged on the front side and the rear side of the driving toothed plate main body 451, the driving toothed plate main body 451 is slidably connected with the machine shell through a sliding block 453, the right end of the sliding block 453 is connected with the inner wall of the machine shell through a first expansion spring 454, the left end of the sliding block 453 is connected with the inner wall of the machine shell through a second expansion spring 455, and the stiffness coefficient of the second expansion spring 455 is greater than that of the first expansion spring 454; when the driving toothed plate main body 451 slides to the left under the action of the driving half gear 44 and the driving toothed plate main body 451 is not engaged with the driving half gear 44, since the stiffness coefficient of the second extension spring 455 is greater than the stiffness coefficient of the first extension spring 454, the driving toothed plate main body 451 pushes the slide block 453 to slide to the right under the action of the second extension spring 455, thereby driving the driving toothed plate main body 451 to slide to the right.
As a preferred embodiment of the present invention, a monitoring camera, a display screen 6 and an electromechanical box 7 are arranged at the top of the upright rod 1, the monitoring camera is located above the mounting frame 2, the display screen 6 and the electromechanical box 7 are located below the mounting frame 2, a noise detector, an air quality detector and an air speed sensor are arranged on the mounting frame 2, a processor and a controller are arranged in the electromechanical box 7, an output end of the receiver 3 is electrically connected with an input end of the noise detector, and output ends of the noise detector, the air speed sensor and the air quality detector are electrically connected with the display screen 6; the receiver 3 receives the sound signal and transmits the sound signal to the noise detector for analysis and processing, and the sound signal is displayed on the display screen 6.
As a preferred embodiment of the present invention, an ash beating plate 55 is hinged to the middle position of the mounting seat 51, the ash beating plate 55 is connected with one end of a return spring, the other end of the return spring is connected with the mounting seat 51, the ash beating plate 55 is located at one side of the cleaning brush roller 52, and a press block 56 capable of pressing the ash beating plate 55 to rotate is arranged on a rotating rod of the cleaning brush roller 52; when the cleaning brush roller 52 rotates, the pressing block 56 presses the dust beating plate 55 to rotate to a certain angle and then is separated from the dust beating plate 55, and at the moment, the dust beating plate 55 can be popped up under the action of the return spring to beat dust on the cleaning brush roller 52.
In a preferred embodiment of the present invention, the surfaces of the plastering plate 55 and the pressing block 56 are both covered with rubber layers.
As a preferred embodiment of the present invention, a sliding plate is fixedly connected to one end of the mounting base 51 away from the earpiece 3, the sliding plate is connected to a telescopic end of a telescopic electric cylinder on the bottom surface of the mounting base 51, an output end of the wind speed sensor is further electrically connected to an input end of a processor, an output end of the processor is electrically connected to a controller, and the controller is electrically connected to the telescopic electric cylinder; the wind speed sensor is used for detecting wind speed data, the data are analyzed and processed through the processor and displayed on the display screen 6, and when the wind speed reaches a certain numerical value, the processor sends an electric signal to the controller to control the movable end of the telescopic electric cylinder to contract, so that the wind power cleaning device 5 is driven to be close to the receiver 3, and the receiver 3 is cleaned; when the wind speed is less than a certain value, the controller can control the movable end of the telescopic electric cylinder to extend out, so that the wind power cleaning device 5 is far away from the receiver 3, the shielding of the receiver 3 is avoided, and the receiving of the receiver 3 to noise is prevented from being influenced.
As a preferred embodiment of the present invention, both the air inlet and the air outlet of the air cavity are provided with dust filtering nets.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of 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.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. An environmental noise monitoring device, its characterized in that: comprises a vertical rod (1), a mounting rack (2) arranged at the top of the vertical rod (1), a receiver (3) rotatably arranged at the left end of the mounting rack (2) and wind power cleaning devices (5) arranged at the left side and the right side of the receiver (3) and used for cleaning dust on the surface of the receiver (3);
the wind power cleaning device (5) comprises an installation seat (51) which is slidably arranged on the top surface of the installation frame (2), a plurality of cleaning brush rollers (52) which are rotatably arranged on the left side of the installation seat (51) and a second wind power blade (54) which is rotatably arranged on the right side of the installation seat (51), a transmission box (53) is arranged on the installation frame (2), a transverse belt transmission mechanism and a longitudinal second belt transmission mechanism are arranged inside the transmission box (53), the central shaft of a belt pulley (531) at the right end of the belt transmission mechanism is fixedly connected with the rotating rod of the second wind power blade (54), the central shaft of the belt pulley (531) at the left end of the belt transmission mechanism is fixedly connected with the rotating rod of the cleaning brush rollers (52), the second belt transmission mechanism comprises a plurality of second belt pulleys (533), and the second belt pulley (533) at the foremost end and the belt pulley (531) at the left end of the belt transmission mechanism are the same central shaft, the central shaft of the second belt pulley (533) is fixedly connected with the rotating rod of the cleaning brush roller (52), and the two belt pulleys (531) are connected together through a belt (532);
the wind power generator is characterized in that a wind power rotating mechanism (4) is arranged on the bottom surface of the mounting frame (2), the wind power rotating mechanism (4) comprises a machine shell fixedly arranged on the mounting frame (2), a wind guide box is arranged below the machine shell, a wind cavity which is through from front to back is formed in the wind guide box, a first wind power blade (41) is arranged in the wind cavity in a rotating mode, a gear set is arranged inside the machine shell and comprises a transmission column rotatably arranged in the machine shell, a transmission toothed plate (45) slidably arranged in the machine shell and a driving gear (42) fixedly connected with a rotating rod of the first wind power blade (41), a transmission toothed groove (43) meshed with the driving gear (42) is formed in the bottom of the transmission column, a transmission half gear (44) is arranged at the top of the transmission column, the transmission half gear (44) is meshed with the left side of the transmission toothed plate (45), and the right side of the transmission toothed plate (45, the earphone is characterized in that a plurality of transmission belt pulleys (47) are rotationally arranged in the machine shell, the transmission belt pulleys (47) are connected through a transmission belt (48), the transmission belt pulley (47) arranged at the foremost end of the machine shell and the driven gear (46) are arranged on the same rotating shaft, the top end of the rotating shaft of the transmission belt pulley (47) is fixedly connected with the earphone mounting seat, and the earphone (3) is detachably arranged on the earphone mounting seat;
transmission pinion rack (45) are including transmission pinion rack main part (451), both sides all are provided with rack (452) around transmission pinion rack main part (451), transmission pinion rack main part (451) pass through slider (453) and casing sliding connection, slider (453) right-hand member is through first expanding spring (454) and casing inner wall connection, slider (453) left end passes through second expanding spring (455) and casing inner wall connection, the stiffness coefficient of second expanding spring (455) is greater than the stiffness coefficient of first expanding spring (454).
2. The environmental noise monitoring device according to claim 1, wherein a monitoring camera, a display screen (6) and an electromechanical box (7) are arranged at the top of the upright rod (1), the monitoring camera is arranged above the mounting frame (2), the display screen (6) and the electromechanical box (7) are arranged below the mounting frame (2), a noise detector, an air quality detector and an air speed sensor are arranged on the mounting frame (2), a processor and a controller are arranged in the electromechanical box (7), the output end of the receiver (3) is electrically connected with the input end of the noise detector, and the output ends of the noise detector, the air speed sensor and the air quality detector are electrically connected with the display screen (6).
3. The environmental noise monitoring device according to claim 1, wherein an ash beating plate (55) is hinged to the middle position of the mounting seat (51), the ash beating plate (55) is connected with one end of a return spring, the other end of the return spring is connected with the mounting seat (51), the ash beating plate (55) is located on one side of the cleaning brush roller (52), and a pressing block (56) capable of pressing the ash beating plate (55) to rotate is arranged on a rotating rod of the cleaning brush roller (52).
4. The environmental noise monitoring device according to claim 3, wherein the surfaces of the dust striking plate (55) and the pressure block (56) are wrapped with rubber layers.
5. The environmental noise monitoring device according to claim 2, wherein a sliding plate is fixedly connected to an end of the mounting base (51) far away from the earpiece (3), the sliding plate is connected to a telescopic end of a telescopic electric cylinder on a bottom surface of the mounting base (51), the output end of the wind speed sensor is further electrically connected to the input end of the processor, the output end of the processor is electrically connected to the controller, and the controller is electrically connected to the telescopic electric cylinder.
6. The environmental noise monitoring device of claim 1, wherein both the air inlet and the air outlet of the air cavity are provided with dust filtering nets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011381698.8A CN112197859B (en) | 2020-12-01 | 2020-12-01 | Environmental noise monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011381698.8A CN112197859B (en) | 2020-12-01 | 2020-12-01 | Environmental noise monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112197859A true CN112197859A (en) | 2021-01-08 |
| CN112197859B CN112197859B (en) | 2021-04-23 |
Family
ID=74034408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011381698.8A Active CN112197859B (en) | 2020-12-01 | 2020-12-01 | Environmental noise monitoring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN112197859B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115555311A (en) * | 2022-08-24 | 2023-01-03 | 夏德国 | Environmental noise monitoring device |
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| WO2014185082A1 (en) * | 2013-05-15 | 2014-11-20 | シャープ株式会社 | Cleaning device |
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| DE102018124100A1 (en) * | 2018-09-28 | 2020-04-02 | Lcm Gmbh | Device for cleaning chain plates of a chain belt conveyor of a woodworking machine |
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| CN211555764U (en) * | 2020-04-09 | 2020-09-22 | 浙江章开电器有限公司 | Easy-maintenance isolating switch with long service life |
| CN211783848U (en) * | 2020-04-26 | 2020-10-27 | 南京海精电子技术有限公司 | Noise monitoring system for turbine |
| CN111981356A (en) * | 2020-08-25 | 2020-11-24 | 福州中天泰电子科技有限公司 | Prevent wind intelligent street lamp that contains clean function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014185082A1 (en) * | 2013-05-15 | 2014-11-20 | シャープ株式会社 | Cleaning device |
| WO2020065644A1 (en) * | 2018-09-25 | 2020-04-02 | Hmi Ltd. | Fluid driven solar panel cleaning system |
| DE102018124100A1 (en) * | 2018-09-28 | 2020-04-02 | Lcm Gmbh | Device for cleaning chain plates of a chain belt conveyor of a woodworking machine |
| CN109570078A (en) * | 2018-11-15 | 2019-04-05 | 贵州创世科技有限公司 | A kind of automatically cleaning dedusting monitor |
| CN211555764U (en) * | 2020-04-09 | 2020-09-22 | 浙江章开电器有限公司 | Easy-maintenance isolating switch with long service life |
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| CN115555311A (en) * | 2022-08-24 | 2023-01-03 | 夏德国 | Environmental noise monitoring device |
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| CN112197859B (en) | 2021-04-23 |
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Effective date of registration: 20211112 Address after: 710000 room 0902-0907, qindian building, No. 396, east section of South Second Ring Road, Yanta District, Xi'an City, Shaanxi Province Patentee after: Xi'an Tongzhan Environmental Consulting Co., Ltd Address before: 261000 903, building 2, Weifang financial service zone, 5087 Shengli East Street, Kuiwen District, Weifang City, Shandong Province Patentee before: Weifang weirun Metal Technology Co., Ltd |