CN114199370B - Noise monitoring device for environmental monitoring - Google Patents
Noise monitoring device for environmental monitoring Download PDFInfo
- Publication number
- CN114199370B CN114199370B CN202210009939.9A CN202210009939A CN114199370B CN 114199370 B CN114199370 B CN 114199370B CN 202210009939 A CN202210009939 A CN 202210009939A CN 114199370 B CN114199370 B CN 114199370B
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- lifting
- noise monitoring
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 62
- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 230000007613 environmental effect Effects 0.000 title claims description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 238000004140 cleaning Methods 0.000 claims abstract description 39
- 238000006073 displacement reaction Methods 0.000 claims abstract description 22
- 230000008093 supporting effect Effects 0.000 claims description 26
- 229920001821 foam rubber Polymers 0.000 claims description 6
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 239000000428 dust Substances 0.000 abstract description 5
- 230000008859 change Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a noise monitoring device for environment monitoring, which relates to the technical field of noise monitoring devices and comprises a noise monitoring device, wherein the bottom of the noise monitoring device is provided with a lifting mechanism, the bottom of the lifting mechanism is provided with a displacement mechanism, the noise monitoring device comprises a cleaning mechanism, the cleaning mechanism comprises a cleaning shell, a motor is arranged in the cleaning shell, and a sliding groove is formed in the cleaning shell. According to the invention, the motor, the rotating threaded rod, the mounting plate, the cleaning block, the sponge cushion and the threaded block are matched, the threaded sliding block is displaced by the motor through the rotating threaded rod, and then the cleaning block and the sponge cushion are mobilized through the mounting plate to clean the surface of the display screen, so that the problem that dust, moisture and the like are attached to the surface of the display screen due to the fact that the noise monitoring device is arranged outdoors sometimes is solved, and the effect of effectively cleaning the surface of the display screen is achieved.
Description
Technical Field
The invention relates to the technical field of noise monitoring devices, in particular to a noise monitoring device for environment monitoring.
Background
Environmental monitoring refers to determining the environmental quality of a monitored site by measuring an index reflecting the environmental quality, and currently, when monitoring the environmental quality, a worker is required to bring a special monitor to the monitored site for monitoring, and in the noise monitoring process, the special monitor is often applied to a noise monitoring device for environmental monitoring.
The following problems exist in the prior art:
1. The traditional noise monitoring device usually displays the current noise through a display screen, and because the noise monitoring device is sometimes arranged outdoors, dust, moisture and the like are attached to the surface of the display screen, so that the display value of the display screen is influenced to be observed by staff;
2. The traditional noise monitoring device lacks of lifting function, and the heights of the noise monitoring devices are different due to different setting places, so that different noise monitoring devices are generally needed, and the application environment of the traditional noise monitoring device is limited;
3. The existing noise monitoring device is difficult to displace, the supporting block is usually adopted to carry out supporting action after displacement is finished, the supporting block needs to be replaced regularly, and the stability of the noise monitoring device can be directly affected due to insufficient fixation after replacement is finished.
Disclosure of Invention
The invention provides a noise monitoring device for environment monitoring, which aims to provide an effect of effectively cleaning the surface of a display screen and solve the problem that the traditional noise monitoring device usually displays the current noise through the display screen, and dust, moisture and the like are attached to the surface of the display screen due to the fact that the noise monitoring device is sometimes arranged outdoors, so that the display value of the display screen is influenced by workers; another purpose is to solve the problem that the conventional noise monitoring device lacks a lifting function, and the heights of the noise monitoring devices are different due to different setting places, so that different noise monitoring devices are generally needed, and the application environment of the conventional noise monitoring device is limited, so that the effect of improving the application range of the noise monitoring device is achieved; another purpose is that in order to solve current noise monitoring device displacement comparatively difficulty, adopt the supporting shoe to support the effect after the displacement is accomplished generally, wherein the supporting shoe needs periodic replacement, and the fixed problem that probably directly influences noise monitoring device's stability after the change is accomplished to reach the effect of guaranteeing noise monitoring device stability.
In order to solve the technical problems, the invention adopts the following technical scheme:
The noise monitoring device for environment monitoring comprises a noise monitoring device, wherein the bottom of the noise monitoring device is provided with a lifting mechanism, and the bottom of the lifting mechanism is provided with a displacement mechanism.
Noise monitoring devices includes clean mechanism, clean mechanism includes clean shell, clean shell's inside is provided with the motor, the spout has been seted up to clean shell's inside, the output fixedly connected with of motor rotates the threaded rod, rotate the bottom of threaded rod and the inner wall bottom swing joint of spout, rotate the surface of threaded rod and be located the inside threaded connection of spout and have the screw thread ring piece, the front fixedly connected with connecting rod of screw thread ring piece, the front of connecting rod extends to clean shell's outside fixedly connected with mounting panel one, the back fixedly connected with clean piece of mounting panel one, the back fixedly connected with elasticity plectrum of mounting panel one, the back fixedly connected with foam-rubber cushion of elasticity plectrum.
The lifting mechanism comprises a lifting shell, a movable threaded rod is movably connected to the bottom of the inner wall of the lifting shell, a first bevel gear is fixedly connected to the surface of the movable threaded rod, a second bevel gear is meshed with the surface of the first bevel gear, a double-headed motor is fixedly connected to one side of the second bevel gear, the double-headed motor is arranged at the bottom of the inner wall of the lifting shell, a baffle is arranged above the surface of the movable threaded rod and positioned on the first bevel gear, the side surface of the baffle is fixedly connected with the side surface of the inner wall of the lifting shell, an elastic pad is fixedly connected to the top of the baffle, a spring is fixedly connected to the top of the baffle, and a first lifting plate is connected to the surface of the movable threaded rod.
The displacement mechanism comprises a fixed shell, the inside of the fixed shell is provided with a groove, the top of the inner wall of the groove is provided with an electric push rod, the bottom of the electric push rod is fixedly connected with a second lifting plate, the side of the second lifting plate is movably connected with the side face of the inner wall of the groove, the bottom of the second lifting plate is fixedly connected with a fixed rod, the inside of the fixed rod is provided with an opening, the inner wall of the opening is provided with an electromagnet, the inner wall of the opening is fixedly connected with an elastic sheet, and the inside of the elastic sheet is fixedly connected with a limiting rod.
The technical scheme of the invention is further improved as follows: the both ends of gag lever post extend to the outside of elastic piece, the outside fixedly connected with fixture block that one end of gag lever post just is located the elastic piece.
By adopting the technical scheme, the elastic piece in the scheme ensures that the clamping block cannot be separated from the opening in the displacement process.
The technical scheme of the invention is further improved as follows: the inside threaded connection of dead lever has the screw thread piece, the bottom fixedly connected with supporting shoe of screw thread piece.
By adopting the technical scheme, the screw thread block in the scheme is in threaded connection with the fixing rod, so that preliminary fixing for the supporting block is formed.
The technical scheme of the invention is further improved as follows: the inside of supporting shoe is provided with the magnetism stone, the bottom of fixed shell is provided with wheel mechanism.
By adopting the technical scheme, the arrangement of the wheel mechanism in the scheme simplifies the displacement of the noise monitoring device.
The technical scheme of the invention is further improved as follows: the side of the lifting plate I is movably connected with the side of the inner wall of the lifting shell, and the top of the elastic pad and the spring are fixedly connected with the bottom of the lifting plate I.
By adopting the technical scheme, the elastic pad and the spring in the scheme can deform, and meanwhile, the stability of the lifting plate I is ensured by the rebound force of the elastic pad and the spring.
The technical scheme of the invention is further improved as follows: the top of the fixed shell is fixedly connected with the bottom of the lifting shell, and the top of the first lifting plate is fixedly connected with a second mounting plate.
By adopting the technical scheme, the lifting plate I in the scheme directly drives the mounting plate to lift.
The technical scheme of the invention is further improved as follows: the top of mounting panel two extends to the outside of lift shell and is provided with noise monitor, clean shell fixed connection is in the front of mounting panel two.
By adopting the technical scheme, the noise monitor in the scheme monitors the noise of the current environment.
The technical scheme of the invention is further improved as follows: the inside of clean shell is provided with the display screen, the back of cleaning piece, foam-rubber cushion all overlap joint with the front of display screen.
By adopting the technical scheme, the display screen in the scheme can display the current noise figure.
By adopting the technical scheme, compared with the prior art, the invention has the following technical progress:
1. The invention provides a noise monitoring device for environment monitoring, which adopts the coordination of a motor, a rotating threaded rod, a first mounting plate, a cleaning block, a foam-rubber cushion and a threaded block, wherein the motor enables the threaded block to displace through the rotating threaded rod, and then the cleaning block and the foam-rubber cushion are mobilized through the first mounting plate to clean the surface of a display screen.
2. The invention provides a noise monitoring device for environment monitoring, which adopts the cooperation of a movable threaded rod, a lifting plate, a bevel gear and a double-headed motor, when the double-headed motor is started, the movable threaded rod is enabled to rotate through continuous meshing of the bevel gear and the bevel gear, and then the lifting change of the lifting plate is driven, so that the problem that the traditional noise monitoring device lacks lifting function is solved, the heights of the noise monitoring devices are different due to different setting places, and different noise monitoring devices are usually needed, so that the problem that the application environment of the traditional noise monitoring device is limited is solved, and the effect of improving the application range of the noise monitoring device is achieved.
3. The invention provides a noise monitoring device for environmental monitoring, which adopts the cooperation of a wheel mechanism, a fixed rod, a clamping block, a thread block, a supporting block, an electromagnet and an elastic sheet, and displacement is carried out through the wheel mechanism, the supporting block and the fixed rod are initially fixed through the thread block, the electromagnet is stopped being electrified, the clamping block is driven to be inserted into a corresponding limit groove under the action of rebound force of the elastic sheet, the problem that the existing noise monitoring device is difficult to displace, the supporting block is usually adopted for supporting after displacement is finished, the supporting block needs to be replaced regularly, the problem that the stability of the noise monitoring device is possibly and directly influenced due to insufficient fixation after replacement is finished is solved, and the effect of guaranteeing the stability of the noise monitoring device is achieved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a noise monitor according to the present invention;
FIG. 3 is a schematic view of a cleaning mechanism according to the present invention;
FIG. 4 is a schematic view of the elevating mechanism according to the present invention;
FIG. 5 is a schematic diagram of a displacement mechanism according to the present invention;
fig. 6 is an enlarged schematic view of the structure of the displacement mechanism a according to the present invention.
In the figure: 1. a noise monitoring device; 11. a noise monitor; 12. a second mounting plate; 13. a cleaning mechanism; 131. cleaning the housing; 132. a motor; 133. rotating the threaded rod; 134. a first mounting plate; 135. a cleaning block; 136. an elastic poking piece; 137. a sponge cushion; 138. a connecting rod; 139. a threaded ring block; 14. a display screen; 2. a lifting mechanism; 21. a lifting housing; 22. a movable threaded rod; 23. a lifting plate I; 24. an elastic pad; 25. a spring; 26. a first bevel gear; 27. a two-size bevel gear; 28. a double-ended motor; 29. a baffle; 3. a displacement mechanism; 31. an electric push rod; 32. a second lifting plate; 33. a wheel mechanism; 34. a fixed rod; 35. a magnet block; 36. a clamping block; 37. a limit rod; 38. a screw block; 39. a support block; 40. an electromagnet; 41. an elastic sheet; 42. the housing is fixed.
Detailed Description
The invention is further illustrated by the following examples:
Example 1
As shown in fig. 1-6, the invention provides a noise monitoring device for environmental monitoring, which comprises a noise monitoring device 1, wherein a lifting mechanism 2 is arranged at the bottom of the noise monitoring device 1, a displacement mechanism 3 is arranged at the bottom of the lifting mechanism 2, the noise monitoring device 1 comprises a cleaning mechanism 13, the cleaning mechanism 13 comprises a cleaning shell 131, a motor 132 is arranged in the cleaning shell 131, a chute is formed in the cleaning shell 131, the output end of the motor 132 is fixedly connected with a rotary threaded rod 133, the bottom of the rotary threaded rod 133 is movably connected with the bottom of the inner wall of the chute, the surface of the rotary threaded rod 133 is in threaded connection with a threaded ring 139, the front surface of the threaded ring 139 is fixedly connected with a connecting rod 138, the front surface of the connecting rod 138 extends to the outer part of the cleaning shell 131 and is fixedly connected with a first mounting plate 134, the back surface of the first mounting plate 134 is fixedly connected with a cleaning block 135, the back surface of the first mounting plate 134 is fixedly connected with an elastic poking plate 136, and the back surface of the elastic poking plate 136 is fixedly connected with a sponge pad 137.
In this embodiment, when cleaning is needed, the motor 132 is started, the motor 132 rotates the threaded rod 133 to displace the threaded ring 139, and the displacement of the threaded ring 139 displaces the first mounting plate 134 via the connecting rod 138, so that the sponge pad 137 and the cleaning block 135 contact with the surface of the display screen 14, and the surface of the display screen 14 is cleaned, wherein the cleaning block 135 is made of chemical fiber, and cannot damage the surface of the display screen 14, and static electricity is generated by friction with dust particles, so that dust is adsorbed by the static electricity.
Example 2
As shown in fig. 1-6, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the lifting mechanism 2 comprises a lifting shell 21, a movable threaded rod 22 is movably connected to the bottom of the inner wall of the lifting shell 21, a first bevel gear 26 is fixedly connected to the surface of the movable threaded rod 22, a second bevel gear 27 is meshed with the surface of the first bevel gear 26, a double-head motor 28 is fixedly connected to one side of the second bevel gear 27, the double-head motor 28 is arranged at the bottom of the inner wall of the lifting shell 21, a baffle 29 is arranged on the surface of the movable threaded rod 22 and above the first bevel gear 26, the side surface of the baffle 29 is fixedly connected with the side surface of the inner wall of the lifting shell 21, an elastic pad 24 is fixedly connected to the top of the baffle 29, a spring 25 is fixedly connected to the top of the baffle 29, a first lifting plate 23 is in threaded connection with the surface of the movable threaded rod 22, the side surface of the first lifting plate 23 is movably connected to the side surface of the inner wall of the lifting shell 21, and the top of the elastic pad 24 and the bottom of the first lifting plate 23 are fixedly connected to the top of the spring 25.
In this embodiment, in the height adjustment process, the double-headed motor 28 is started, the double-headed motor 28 can rotate the second bevel gear 27, and the movable threaded rod 22 is rotated by continuously meshing the second bevel gear 27 with the first bevel gear 26, so that the first lifting plate 23 drives the second mounting plate 12 to lift and change, and the stability of the first lifting plate 23 is further improved by the resilience force of the elastic pad 24 and the spring 25.
Example 3
As shown in fig. 1-6, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the displacement mechanism 3 includes a fixed housing 42, the inside of the fixed housing 42 is provided with a groove, the top of the inner wall of the groove is provided with an electric push rod 31, the bottom of the electric push rod 31 is fixedly connected with a second lifting plate 32, the side of the second lifting plate 32 is movably connected with the side of the inner wall of the groove, the bottom of the second lifting plate 32 is fixedly connected with a fixed rod 34, the inside of the fixed rod 34 is provided with an opening, the inner wall of the opening is provided with an electromagnet 40, the inner wall of the opening is fixedly connected with an elastic sheet 41, the inside of the elastic sheet 41 is fixedly connected with a limit rod 37, two ends of the limit rod 37 extend to the outside of the elastic sheet 41, one end of the limit rod 37 is fixedly connected with a clamping block 36 which is positioned on the outside of the elastic sheet 41, the inside of the fixed rod 34 is connected with a thread block 38, the bottom of the thread block 38 is fixedly connected with a supporting block 39, the inside of the supporting block 39 is provided with a magnetite block 35, the bottom of the fixed housing 42 is provided with a wheel mechanism 33, the top of the fixed housing 42 is fixedly connected with the bottom of the lifting housing 21, the top of the first lifting plate 23 is fixedly connected with a second mounting plate 12, the top of the second mounting plate 12 extends to the outside of the lifting housing 21 is provided with an elastic sheet 41, one end of the elastic sheet 41 is fixedly connected with a cleaning block 135, one end of the cleaning pad 131 is fixedly connected with the cleaning pad 131 to the front surface of the cleaning pad 14 and the front surface of the cleaning pad 14 is arranged on the front surface of the cleaning pad 14, and the front surface of the cleaning pad 14 is provided with the front surface is provided with the cleaning pad 14.
In this embodiment, the displacement of the noise monitoring device 1 is facilitated by the wheel mechanism 33, after the displacement is completed, the electric push rod 31 is controlled, the supporting block 39 is driven to displace by the fixing rod 34, so that the effect of fixing the position is achieved, when the supporting block 39 is fixed, as the fixing groove is formed inside the supporting block 39, after the fixing rod 34 is inserted into the supporting block 39, the fixing rod 34 and the supporting block 39 are primarily fixed by rotating the supporting block 39, the electromagnet 40 is stopped from being electrified, the electromagnet 40 and the limiting rod 37 are disconnected, the clamping block 36 is inserted into the corresponding limiting groove under the action of the rebound force of the elastic sheet 41, the secondary fixing is formed, and the position of the clamping block 36 is further limited by the magnetic force due to the fact that the clamping block 36 is made of a certain magnetic material, so that the fixing is completed.
The following specifically explains the operation principle of the noise monitoring device for environmental monitoring.
As shown in fig. 1-6, in the cleaning process, the motor 132 makes the threaded ring 139 displace through the rotating threaded rod 133, and then makes the mounting plate one 134 displace through the connecting rod 138, so that the sponge pad 137, the cleaning block 135 and the surface of the display screen 14 are contacted, thereby cleaning the surface of the display screen 14, in the height adjustment process, the double-headed motor 28 will make the secondary bevel gear 27 rotate, and make the movable threaded rod 22 rotate through the continuous engagement of the secondary bevel gear 27 and the primary bevel gear 26, thereby making the lifting plate one 23 drive the mounting plate two 12 to lift and change, wherein the stability of the lifting plate one 23 is further improved through the resilience of the elastic pad 24 and the spring 25, the displacement of the noise monitoring device 1 is facilitated through the wheel mechanism 33, after the displacement is completed, the electric push rod 31 is controlled, the supporting block 39 is driven through the fixing rod 34, thereby achieving the effect of fixing the position, and when the supporting block 39 is fixed, the fixing rod 34 and the supporting block 39 form preliminary fixing through the threaded block 38, then stop electrifying the electromagnet 40, under the resilience of the elastic sheet 41, and making the corresponding clamping block 36 be inserted into the corresponding magnetic block 36, thereby fixing the position of the magnetic block 36, and further defining the magnetic block 36.
The foregoing invention has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.
Claims (5)
1. Noise monitoring device for environmental monitoring, including noise monitoring device (1), its characterized in that: the bottom of the noise monitoring device (1) is provided with a lifting mechanism (2), and the bottom of the lifting mechanism (2) is provided with a displacement mechanism (3);
Noise monitoring device (1) includes clean mechanism (13), clean mechanism (13) are including clean shell (131), the inside of clean shell (131) is provided with motor (132), the spout has been seted up to the inside of clean shell (131), the output fixedly connected with of motor (132) rotates threaded rod (133), the bottom of rotating threaded rod (133) and the inner wall bottom swing joint of spout, the surface of rotating threaded rod (133) and the inside threaded connection who is located the spout have screw thread ring piece (139), the front fixedly connected with connecting rod (138) of screw thread ring piece (139), the front of connecting rod (138) extends to the outside fixedly connected with mounting panel one (134) of clean shell (131), the back fixedly connected with cleaning block (135) of mounting panel one (134), the back fixedly connected with elasticity plectrum (136) of mounting panel one (134), the back fixedly connected with foam-rubber cushion (137) of elasticity plectrum (136).
The lifting mechanism (2) comprises a lifting shell (21), a movable threaded rod (22) is movably connected to the bottom of the inner wall of the lifting shell (21), a first bevel gear (26) is fixedly connected to the surface of the movable threaded rod (22), a second bevel gear (27) is meshed with the surface of the first bevel gear (26), a double-headed motor (28) is fixedly connected to one side of the second bevel gear (27), the double-headed motor (28) is arranged at the bottom of the inner wall of the lifting shell (21), a baffle plate (29) is arranged on the surface of the movable threaded rod (22) and above the first bevel gear (26), the side surface of the baffle plate (29) is fixedly connected with the side surface of the inner wall of the lifting shell (21), an elastic pad (24) is fixedly connected to the top of the baffle plate (29), a spring (25) is fixedly connected to the top of the baffle plate (29), and a first lifting plate (23) is connected to the surface of the movable threaded rod (22).
The displacement mechanism (3) comprises a fixed shell (42), a groove is formed in the fixed shell (42), an electric push rod (31) is arranged at the top of the inner wall of the groove, a second lifting plate (32) is fixedly connected to the bottom of the electric push rod (31), the side face of the second lifting plate (32) is movably connected with the side face of the inner wall of the groove, a fixed rod (34) is fixedly connected to the bottom of the second lifting plate (32), an opening is formed in the fixed rod (34), an electromagnet (40) is arranged on the inner wall of the opening, an elastic sheet (41) is fixedly connected to the inner wall of the opening, and a limiting rod (37) is fixedly connected to the inner part of the elastic sheet (41);
two ends of the limiting rod (37) extend to the outside of the elastic sheet (41), and a clamping block (36) is fixedly connected to one end of the limiting rod (37) and positioned outside the elastic sheet (41);
the inside thread of the fixed rod (34) is connected with a thread block (38), and the bottom of the thread block (38) is fixedly connected with a supporting block (39);
the inside of supporting shoe (39) is provided with magnetite piece (35), the bottom of fixed shell (42) is provided with wheel mechanism (33).
2. The noise monitoring device for environmental monitoring according to claim 1, wherein: the side of the lifting plate I (23) is movably connected with the side of the inner wall of the lifting shell (21), and the top of the elastic pad (24) and the top of the spring (25) are fixedly connected with the bottom of the lifting plate I (23).
3. The noise monitoring device for environmental monitoring according to claim 1, wherein: the top of the fixed shell (42) is fixedly connected with the bottom of the lifting shell (21), and the top of the first lifting plate (23) is fixedly connected with a second mounting plate (12).
4. A noise monitoring device for environmental monitoring according to claim 3, characterized in that: the top of mounting panel two (12) extends to the outside of lift shell (21) and is provided with noise monitor (11), clean shell (131) fixed connection is in the front of mounting panel two (12).
5. The noise monitoring device for environmental monitoring of claim 4, wherein: the inside of clean shell (131) is provided with display screen (14), the back of cleaning piece (135), foam-rubber cushion (137) all overlap joint with display screen (14) front.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210009939.9A CN114199370B (en) | 2022-01-06 | 2022-01-06 | Noise monitoring device for environmental monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210009939.9A CN114199370B (en) | 2022-01-06 | 2022-01-06 | Noise monitoring device for environmental monitoring |
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| CN114199370A CN114199370A (en) | 2022-03-18 |
| CN114199370B true CN114199370B (en) | 2024-06-11 |
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| CN202210009939.9A Active CN114199370B (en) | 2022-01-06 | 2022-01-06 | Noise monitoring device for environmental monitoring |
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| CN (1) | CN114199370B (en) |
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| Publication number | Publication date |
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| CN114199370A (en) | 2022-03-18 |
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