CN115824388A

CN115824388A - Urban noise monitoring system

Info

Publication number: CN115824388A
Application number: CN202211436645.0A
Authority: CN
Inventors: 王峥
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-03-21

Abstract

The invention relates to an urban noise monitoring system which comprises a base, a control box and a noise detection cylinder, wherein the control box is arranged at the upper end of the base, the noise detection cylinder is arranged at the upper end of the control box, and the noise detection cylinder is electrically connected with the control box. The periphery of the control box is also provided with a heat dissipation and noise reduction mechanism. The upper end of the noise detection cylinder is also provided with a rainwater collection box, the upper end of the rainwater collection box is an open opening and is used for collecting rainwater, and the two sides of the lower end of the noise detection cylinder are respectively provided with a water inlet pipe and a water outlet pipe which are connected with a heat dissipation and noise reduction mechanism. The inlet tube sets up the suction pump with control box electric connection. The heat dissipation and noise reduction mechanism sequentially comprises an inert gas layer, a water injection layer and a sound insulation layer from outside to inside. And a plurality of water injection pipes which are communicated with each other and are arranged horizontally in parallel are arranged in the water injection layer. The utility model provides a city noise monitoring system utilizes the rainwater to dispel the heat for the control box through the mechanism of making an uproar that falls in the heat dissipation, can detect and eliminate city noise, improves city comfort level.

Description

Urban noise monitoring system

Technical Field

The invention relates to the field of noise monitoring, in particular to an urban noise monitoring system.

Background

The noise is the sound of irregular and disorderly change of frequency and intensity of sound waves, and is the sound which prevents people from normally resting, studying and working in physiology and generates interference to the sound to be heard, and the noise is also one of environmental pollution and has certain harm to the health of people. With the development of cities, people have higher and higher requirements on physical health, so that noise pollution is inevitably reduced in city planning in the future, but the main source of noise needs to be detected firstly for reducing noise, and urban noise mainly comes from automobiles on streets and parts of factories, so that noise monitoring and eliminating devices are generally installed in factories or roads, so that high-decibel noise is prevented and reduced.

In order to achieve a good sound receiving effect and improve the data of noise monitoring, the urban noise monitoring device is generally installed outdoors. But when the weather of rainfall, the rainwater directly patted also can produce the noise on radio reception device, and then influenced the effect of radio reception, and the foreign matter that flies up along with the wind and rain causes the damage to radio reception device easily, reduces monitoring devices's life, in addition, in order to reduce the influence of the humidity of rainwater to radio reception device, general open air city noise monitoring devices still can increase the drying and dehumidifying device who has the fan, but the fan can produce the noise equally, influences the accuracy of noise monitoring.

Two lines of waves with the same frequency are superposed, so that the vibration of some areas is strengthened, the vibration of some areas is weakened, and the vibration strengthened area and the vibration weakened area are separated from each other. This phenomenon is called wave interference. When the waves of two wave sources with the same vibration frequency and identical vibration condition are superposed, if the vibration steps of the two wave sources are consistent, the distance between the two wave sources = even times of half wavelength, the wave source is a reinforcing point; distance of two wave sources = odd multiple of half wavelength is the point of weakness.

Therefore, an urban noise detection system with strong anti-interference performance is urgently needed, and the urban noise detection system is disclosed in the Chinese patent publication No: CN110108353B discloses an urban environment noise monitoring facilities based on big data, the on-line screen storage device comprises a base, the top fixed mounting of base has the bracing piece, the peripheral sliding connection of bracing piece has the lantern ring, sliding connection has the solar energy electroplax between the periphery of the lantern ring and the top of base, the front end fixed connection of bracing piece has the control box, the inside sliding connection of bracing piece has the lifter, the front end fixed connection of lifter has the display screen. The disadvantages are that: the invention is easily influenced by rainy environment, and the accuracy of the sound receiving device can be influenced when rainwater directly beats on the sound receiving device.

Disclosure of Invention

The present invention is directed to an urban noise monitoring system, so as to solve the problems mentioned in the background art.

The invention provides the following technical scheme: a city noise monitoring system comprises a base, a control box and a noise detection cylinder. The control box is installed in the base upper end, and the noise detection section of thick bamboo is installed in the control box upper end, noise detection section of thick bamboo and control box electric connection. The periphery of the control box is also provided with a heat dissipation and noise reduction mechanism. The upper end of the noise detection barrel is also provided with a rainwater collection box. The upper end of the rainwater collecting box is an open opening for collecting rainwater, and both sides of the lower end are respectively provided with a water inlet pipe and a water outlet pipe which are connected with the heat dissipation and noise reduction mechanism. The inlet tube sets up the suction pump with control box electric connection. The heat dissipation and noise reduction mechanism sequentially comprises an inert gas layer, a water injection layer and a sound insulation layer from outside to inside. And a sealed cavity is arranged in the inert gas layer and filled with inert gas. The water injection layer is internally provided with a plurality of layers of water injection pipes which are communicated with each other and are spaced at equal intervals. Wherein, one end of the water injection pipe on the uppermost layer is connected with the water inlet pipe, and one end of the water injection pipe on the lowermost end is connected with the water outlet pipe. The sound insulation layer is filled with sound insulation materials.

Through the technical scheme, the rainwater collecting box can shield rainwater for the noise detection barrel, and the rainwater can be introduced into the water injection pipe of the heat dissipation and noise reduction mechanism after entering the rainwater collecting box, so that the control box is wrapped by cold water of the water injection pipe, and the heat dissipation effect of the control box is improved. The heat dissipation noise reduction mechanism is further provided with an inert gas layer and a sound insulation layer, so that external noise can be absorbed, noise generated by beating of rainwater on the heat dissipation noise reduction mechanism is reduced, and detection accuracy of the noise detection cylinder is improved. The inert gas layer plays a role in heat preservation, and can prevent water in the water injection pipe from freezing when the temperature is lower than zero, so that the water loses fluidity, or the freezing expansion causes the breakage of the water injection pipe.

Furthermore, the control box is internally provided with a first fan, a second fan, a first condensation pipe and a second condensation pipe. The side surface of the control box is provided with a plurality of air inlets, and the top surface of the control box is provided with a plurality of air outlets facing the noise detection cylinder. First fan setting is in air intake department, and first condenser pipe setting is between first fan and air intake. The second fan is arranged at the air outlet, and the second condensation pipe is arranged between the second fan and the air outlet. The first and second condenser pipes are internally filled with a cooling liquid that flows circularly.

Through above-mentioned technical scheme, first condenser pipe and second condenser pipe are through the refrigeration of endless coolant liquid, and outside moist air is followed the air intake and is absorbed by the condenser pipe after first condenser pipe, and moisture meets cold liquefaction and be the water droplet, and the air current is cooled off by the condenser pipe simultaneously, and reentrant control box is interior to the heat dissipation dehumidification effect of control box has been improved. Meanwhile, the air flow in the control box is cooled and absorbed by the second condensation pipe again, and is blown to the noise detection cylinder through the air outlet, so that the heat dissipation and drying effects of the noise detection cylinder are improved.

Furthermore, the first fan and the second fan have the same specification and can emit noise with the same frequency. The distance between the first fan and the second fan is equal to odd times of half wavelength of noise emitted by the first fan.

Through above-mentioned technical scheme, first fan and second fan can produce the sound wave of same frequency, and produce the interference that weakens each other to under the condition that possesses heat dispersion, the noise that furthest reduces first fan and second fan self and produce is to the influence of a noise detection section of thick bamboo.

Furthermore, dust screens are arranged at the air inlets and the air outlets. A buffer spring is arranged between the control box and the base.

Through above-mentioned technical scheme, set up the dust screen and can effectively avoid external dust to follow air intake and air outlet department entering control box, avoided the inside of dust pollution control box. Set up buffer spring and can reduce the striking each other of control box and base, improve the life of control box.

Furthermore, the rainwater collecting box also comprises a box body, a filtering mechanism and a telescopic acting mechanism, wherein the filtering mechanism and the telescopic acting mechanism are arranged in the box body. The telescopic acting mechanism comprises a telescopic plate and a power generation device which are horizontally and movably arranged on one side of the box body. The filtering mechanism comprises a rain baffle, a first filtering plate, a partition plate, a foreign matter plate and a water purifying area. The upper end of the rain shield is provided with a rotating shaft which is hinged on the upper side of the box body through the rotating shaft, and the rain shield is positioned at the right upper end of the telescopic plate. When the rain shield rotates along the rotating shaft, the inner end of the telescopic plate can be driven to move outwards. One end of the expansion plate penetrates through the box body and extends out of the box body. The telescopic acting mechanism is also provided with an acting cavity for accommodating the telescopic plate exposed at the outer end part of the box body. The working cavity is fixedly arranged on the outer side of the box body, and the lower end of the working cavity is provided with a one-way air valve and an air outlet pipeline. The expansion plate is provided with a piston which is hermetically connected with the work applying cavity, and a work applying spring is arranged between the piston and the work applying cavity. The air outlet pipeline is externally provided with a power generating device. The first filter sets up in the box and keeps away from weather shield one side, and first filter is located the weather shield lower extreme. The water purification district sets up at first filter lower extreme to with advance water piping connection. The foreign matter board slope sets up in water purification district one side, and the foreign matter board is located the homonymy of box with the weather shield, and the incline direction is opposite. The baffle is arranged between the foreign body plate and the water purifying area. The box body is provided with a foreign body opening near the foreign body plate.

Through above-mentioned technical scheme, the weather shield can guide the rainwater to first filter department on the one hand, and on the other hand can drive the expansion plate and do work after being strikeed by the foreign matter. After rainwater enters the box body, the rain blocking plate can be subjected to changed impact force because the rainfall changes all the time, so that the rain blocking plate continuously swings up and down, the expansion plate is repeatedly impacted, the piston of the expansion plate extrudes the acting cavity and resets under the action of the acting spring, and a one-way air valve is matched to form one-way air flow at the air outlet pipeline, and the one-way air flow drives the power generation device to act to generate current, so that the resource recycling is realized. Part rainwater can be followed rain board landing to first filter, gets into the water purification district after first filter filters to for heat dissipation noise reduction mechanism supplies water. When solid foreign matters enter the upper end opening of the rainwater collecting box, the foreign matters can collide with the rainwater baffle plate, directly fall into the foreign matter plate and then fall out of the rainwater collecting box from the foreign matter plate. Or the solid foreign matters firstly strike the rain baffle and then strike the first filter plate, fall down along the first filter plate and then fall into the foreign matter plate, and finally the rainwater collecting box is discharged from the foreign matter opening.

Furthermore, power generation facility includes supporting storehouse, electricity generation pivot, rotating fan, power generation box, electricity generation coil, expanding spring, magnet post and acting cam. The supporting bin is fixedly arranged at the lower end of the acting cavity, and the upper end of the supporting bin is connected with the air outlet pipeline. The power generation rotating shaft is vertically and movably arranged at the central position of the supporting bin, and the lower end of the power generation rotating shaft extends out of the supporting bin and is fixedly provided with an acting cam. The rotating fan is fixedly arranged on the power generation rotating shaft, and can receive the air flow of the air outlet pipeline and drive the power generation rotating shaft to rotate in a single direction. Support the fixed power generation box that sets up of storehouse lower extreme, the inside fixed power generation coil that sets up of power generation box, the through-hole is seted up at the power generation box center, through-hole top fixed connection expanding spring one end, expanding spring's other end fixed connection magnet post, magnet post one end and acting cam contact, the other end slides and sets up in the through-hole. The power generation box is electrically connected with the control box.

Through above-mentioned technical scheme, the air current of pipeline of giving vent to anger is received from supporting the storehouse upper end to the rotating fan and drives the unidirectional rotation of electricity generation pivot through the rotating fan, and the electricity generation pivot drives the cam that does work and rotates, and the not co-altitude contact surface of cam that does work contacts with the magnet post to can drive magnet post round trip movement under expanding spring's cooperation, make generating coil constantly cut the magnetic induction line and produce the electric current. The power generation device can effectively utilize the gravity of the rainwater striking rain baffle in heavy rain weather and the gravity of the rainwater striking rain baffle in foreign matter striking rain baffle to realize power generation, and the technical effect of saving energy is achieved.

Furthermore, the power generation device also comprises a plurality of auxiliary acting mechanisms, and each auxiliary acting mechanism comprises an elastic connecting rod, a plurality of windward blocks and a ratchet mechanism. The part of the lower end of the power generation rotating shaft, which is positioned outside the supporting bin, is also provided with a ratchet mechanism, and the ratchet mechanism is used for driving the power generation rotating shaft to rotate in a single direction. One end of the elastic connecting rod is connected with the ratchet mechanism, and the other end of the elastic connecting rod is provided with a windward block. The auxiliary working mechanisms are alternately arranged at the lower end of the power generation rotating shaft. The ratchet mechanism is the same as the rotating fan in rotation direction.

Through the technical scheme, when no rainy day but wind exists, the power generation device can generate power by means of the auxiliary acting mechanism. Wind blows to the windward block, under the action of the ratchet mechanism, the windward block can drive the elastic connecting rod to rotate in one direction around the power generation rotating shaft, the power generation rotating shaft drives the acting cam to rotate, the contact surfaces of the acting cam, which are different in height, are in contact with the magnet column, the magnet column can be driven to move back and forth under the cooperation of the telescopic spring, and the power generation coil can continuously cut the magnetic induction line to generate current. In rainy days, the ratchet mechanism can prevent wind opposite to the direction of the power generation rotating shaft from driving the windward block to rotate reversely, and meanwhile, the windward block can be prevented from being driven by the power generation rotating shaft to rotate, so that the power generation efficiency of the power generation device is improved.

Furthermore, the filter mechanism also comprises a second filter plate and a flushing port. The second filter level sets up in box one side, is located first filter homonymy. The second filter is located water purification district upper end, and one end extends to water purification district and sets up outward and erode the mouth, and box one end is kept away from to first filter and second filter keep away from box one end fixed connection. The water filtering speed of the first filter plate is greater than that of the second filter plate. The first filter plate, the second filter plate and the box body form a primary filter chamber.

Through above-mentioned technical scheme, the rainwater carries out first filtration through first filter, later gets into primary filter chamber, then gets into the second filter and carries out secondary filter, and the water purification district that gets into at last keeps in to give the heat dissipation and fall the mechanism of making an uproar and supply water. When the rainfall is great when exceeding the drainage speed of second filter, the rainwater can be kept in elementary filter chamber to have partial rainwater to wash away the foreign matter board from washing away the mouthful downward flow, prevent that solid foreign matter and dust from receiving the rainwater effect to bond on the foreign matter board, play the effect of clean foreign matter board.

Furthermore, a communicating pipe is arranged between the first condensation pipe and the second condensation pipe, a flow limiting valve is arranged in the communicating pipe, and the flow limiting valve is electrically connected with the control box. The bottom of the first condenser pipe is also provided with a drain pipe, the drain pipe extends into the primary filtering chamber, and the drain pipe also passes through the second condenser pipe and is used for collecting liquid water generated by the first condenser pipe and the second condenser pipe.

Through above-mentioned technical scheme, the control box can control the velocity of flow of restriction valve control first condenser pipe and the inside coolant liquid of second condenser pipe to the cooling capacity of control first condenser pipe and second condenser pipe. Moisture in access control box and the control box is collected in the drain pipe after meetting first condenser pipe and the liquefaction of second condenser pipe to transport to elementary filter chamber through the drain pipe, rethread second filter filters the back and directly gets into the clean water district, falls the mechanism of making an uproar and provides the water source for the heat dissipation, thereby improves the utilization ratio of water resource.

Furthermore, a sound insulation material is arranged between the rainwater collecting box and the noise detection barrel. The outlet of the water outlet pipe is arranged at the upper end of the rain shield and faces the rain shield.

Through above-mentioned technical scheme, set up sound insulation material between rainwater collecting box and the noise detection section of thick bamboo and can avoid the rainwater to pat the noise that produces on the rainwater collecting box, influence the detection accuracy of noise detection section of thick bamboo. The outlet of outlet pipe sets up and just can arrange the water source after the mechanism of making an uproar uses of making an uproar again to the weather shield towards the weather shield in the weather shield upper end, provides power for power generation facility, recycles the filtering process of rainwater collecting box and realizes the heat dissipation, has improved the reuse rate of water resource.

Compared with the prior art, the invention has the following beneficial effects:

1. the rainwater collecting box can shelter from the rainwater for the noise detection section of thick bamboo, and the rainwater gets into and is filtered in the water injection pipe of mechanism of making an uproar that falls by first filter and second filter after the rainwater collecting box for the control box outside is wrapped up by the cold water of water injection pipe, thereby improves the radiating effect of control box. Meanwhile, the rainwater collecting box is provided with the expansion plate and the power generation device, power generation can be realized by utilizing the gravity of rainwater, and the energy utilization rate is improved.

2. The heat dissipation noise reduction mechanism is further provided with an inert gas layer and a sound insulation layer, so that external noise can be absorbed, noise generated by beating the heat dissipation noise reduction mechanism by rainwater is reduced, and the detection accuracy of the noise detection cylinder is improved. The inert gas layer plays a role in heat preservation, and can prevent water in the water injection pipe from freezing when the temperature is lower than zero, so that the water loses fluidity, or the freezing expansion forces the water injection pipe to break.

3. The control box is internally provided with the first fan, the second fan, the first condensation pipe and the second condensation pipe, so that drying and dehumidification can be effectively carried out on the inside of the control box, the first fan and the second fan can generate interference sound waves weakened mutually, and the influence of noise generated by the first fan and the second fan on the noise detection barrel is reduced.

4. The power generation device can generate power in windy weather by means of the auxiliary acting mechanism. Meanwhile, in rainy days, the ratchet mechanism is arranged to prevent wind opposite to the direction of the power generation rotating shaft from driving the windward block to rotate reversely, the windward block is prevented from being driven to rotate by the power generation rotating shaft, the windward block is prevented from blocking the power generation rotating shaft to normally rotate, and the power generation efficiency of the power generation device is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of an urban noise monitoring system according to the present invention;

FIG. 2 is a cross-sectional view of a heat dissipation and noise reduction mechanism of an urban noise monitoring system of the present invention;

FIG. 3 is a cross-sectional view of a rainwater collection tank of an urban noise monitoring system of the present invention;

fig. 4 is a schematic diagram of a power generation device of an urban noise monitoring system according to the invention.

In the figure: 1. a base; 2. a control box; 201. a first fan; 202. a first condenser pipe; 203. an air inlet; 3. a noise detection cylinder; 4. a heat dissipation and noise reduction mechanism; 401. an inert gas layer; 402. injecting a water layer; 403. a sound insulating layer; 404. a water injection pipe; 5. a rainwater collection box; 501. a water inlet pipe; 502. a water outlet pipe; 503. a box body; 504. opening the foreign body; 505. a primary filtration chamber; 6. a retractable plate; 601. a piston; 602. an acting spring; 7. a power generation device; 701. a supporting bin; 702. a power generation rotating shaft; 703. rotating the fan; 704. a power generation box; 705. a power generating coil; 706. a tension spring; 707. a magnetic column; 708. a work-applying cam; 801. a rain shield; 802. a first filter plate; 803. a partition plate; 804. a foreign matter plate; 805. a water purification area; 806. a second filter plate; 807. flushing the port; 9. a working chamber; 10. an air outlet pipe; 11. an elastic connecting rod; 12. a windward block; 13. a ratchet mechanism.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: the invention discloses an urban noise monitoring system which comprises a base 1, a control box 2 and a noise detection cylinder 3. Control box 2 is installed in base 1 upper end, and noise detection section of thick bamboo 3 is installed in control box 2 upper end, and noise detection section of thick bamboo 3 and control box 2 electric connection. The periphery of the control box 2 is also provided with a heat dissipation and noise reduction mechanism 4. The upper end of the noise detection barrel 3 is also provided with a rainwater collection box 5. The upper end of the rainwater collection box 5 is an open opening for collecting rainwater, and both sides of the lower end are respectively provided with a water inlet pipe 501 and a water outlet pipe 502 which are connected with the heat dissipation and noise reduction mechanism 4. The water inlet pipe 501 is provided with a water pump electrically connected with the control box 2. The heat dissipation and noise reduction mechanism 4 includes an inert gas layer 401, a water injection layer 402, and a sound insulation layer 403 in this order from the outside to the inside. The inert gas layer 401 is internally provided with a sealed cavity and filled with inert gas, wherein the inert gas is argon. The water injection layer 402 is internally provided with a plurality of layers of water injection pipes 404 which are communicated with each other and are spaced at equal intervals. Wherein, one end of the water injection pipe 404 at the uppermost layer is connected with the water inlet pipe 501, and one end of the water injection pipe 404 at the lowermost layer is connected with the water outlet pipe 502. The sound insulation layer 403 is filled with sound insulation material, and the sound insulation material is soundproof cotton. Rainwater collecting box 5 can shelter from the rainwater for noise detection section of thick bamboo 3, and can be introduced in the water injection pipe 404 of heat dissipation and noise reduction mechanism 4 behind the rainwater entering rainwater collecting box 5 for control box 2 is wrapped up by water injection pipe 404, utilizes the moisture in water injection pipe 404 to improve control box 2's radiating effect. The heat dissipation and noise reduction mechanism 4 is further provided with an inert gas layer 401 and a sound insulation layer 403, so that external noise can be absorbed, noise generated when rainwater is beaten on the heat dissipation and noise reduction mechanism 4 is reduced, and detection accuracy of the noise detection cylinder 3 is improved. The inert gas layer 401 plays a role in heat preservation, and can prevent water in the water injection pipe 404 from freezing when the temperature is lower than zero, so that the water loses fluidity, or the water injection pipe 404 is broken due to freezing expansion.

The inside first fan 201, the second fan, first condenser pipe 202 and the second condenser pipe that sets up of control box 2. The side of the control box 2 is provided with a plurality of air inlets 203, and the top surface of the control box 2 facing the noise detection cylinder 3 is provided with a plurality of air outlets. The first fan 201 is disposed at the air inlet 203, and the first condensation pipe 202 is disposed between the first fan 201 and the air inlet 203. The second fan is arranged at the air outlet, and the second condensation pipe is arranged between the second fan and the air outlet. The interior of the first condenser tube 202 and the second condenser tube is filled with a circulating flow of cooling fluid. The first condensation duct 202 and the second condensation duct are refrigerated by the circulating cooling liquid for introducing dry outside air and discharging moisture inside the control box 2, respectively. Outside moist air is from air intake 203 behind first condenser pipe 202, and moisture meets cold liquefaction and is the water droplet and is absorbed by the condenser pipe, and the air current is cooled by the condenser pipe simultaneously, reentrant control box 2 in to the heat dissipation dehumidification effect of control box 2 has been improved. Meanwhile, the air flow in the control box 2 is cooled and absorbed by the second condensation pipe again, and is blown to the noise detection cylinder 3 through the air outlet, so that the heat dissipation and drying effects of the noise detection cylinder 3 are improved.

The first fan 201 and the second fan have the same specification and can emit noise with the same frequency. The distance between the first fan 201 and the second fan is equal to an odd number times the half wavelength of the noise emitted from the first fan 201. The first fan 201 and the second fan can generate sound waves with the same frequency and generate mutual weakened interference, so that under the condition of having heat dissipation performance, the influence of noise generated by the first fan 201 and the second fan on the noise detection barrel 3 is reduced to the greatest extent.

Dust screens are arranged at the air inlets 203 and the air outlets. A buffer spring is arranged between the control box 2 and the base 1. Set up the dust screen and can effectively avoid external dust to follow air intake 203 and air outlet department entering control box 2, avoided the inside of dust pollution control box 2. Set up buffer spring and can reduce the striking each other of control box 2 and base 1, improve control box 2's life.

The rainwater collection box 5 further comprises a box body 503, and a filtering mechanism and a telescopic power mechanism which are arranged inside the box body 503. The telescopic working mechanism comprises a telescopic plate 6 and a power generation device 7 which are horizontally and movably arranged on one side of the box body 503. The filtering mechanism includes a rain shield 801, a first filtering plate 802, a partition 803, a foreign matter plate 804, and a water purifying region 805. The upper end of the rain shield 801 is provided with a rotating shaft which is hinged on the upper side of the box body 503, and the rain shield 801 is positioned at the upper end of the telescopic plate 6. When the rain shield 801 rotates along the rotation axis, the inner end of the expansion plate 6 can be driven to move outwards. One end of the expansion plate 6 penetrates through the box body 503 and extends out of the box body 503. The telescopic acting mechanism is further provided with an acting cavity 9 for accommodating the telescopic plate 6 exposed at the outer end of the box body 503, the acting cavity 9 is fixedly arranged at the outer side of the box body 503, and the lower end of the acting cavity 9 is provided with a one-way air valve and an air outlet pipeline 10. The expansion plate 6 is provided with a piston 601 which is hermetically connected with the working chamber 9, and a working spring 602 is also arranged between the piston 601 and the working chamber 9. The lower end of the air outlet pipeline 10 is connected with a power generation device 7. The first filter plate 802 is obliquely disposed on a side of the box body 503 away from the rain shield 801, and the first filter plate 802 is located at a lower end of the rain shield 801. The water purification area 805 is disposed at the lower end of the first filter plate 802 and connected to the water inlet pipe 501. The foreign matter plate 804 is obliquely arranged on one side of the water purifying area 805, and the foreign matter plate 804 and the rain shield plate 801 are positioned on the same side of the box body 503, and the inclination directions are opposite. The partition 803 is disposed between the foreign matter plate 804 and the water purification section 805. The box 503 is provided with a foreign object opening 504 near the foreign object plate 804. Rain shield 801 can guide the rainwater to first filter 802 department on the one hand, and on the other hand can drive expansion plate 6 after being strikeed by the foreign matter and remove. After rainwater enters the box body 503, the rain blocking plate 801 can be subjected to changed impact force because the rainfall amount is changed all the time, so that the rain blocking plate 801 continuously swings up and down, the rain blocking plate 6 is repeatedly impacted, the piston 601 of the expansion plate 6 extrudes the work applying cavity 9, the work applying cavity is reset under the action of the work applying spring 602, and a one-way air valve is matched to form one-way air flow at the air outlet pipeline 10, and the one-way air flow drives the power generation device 7 to act to generate current, so that the resource recycling is realized. Part of the rainwater slides from the rain shielding plate 801 to the first filter plate 802, and enters the water purification area 805 after being filtered by the first filter plate 802, and supplies water to the heat dissipation and noise reduction mechanism 4. When solid foreign matters enter the upper end opening of the rainwater collection box 5, the foreign matters can impact the rainwater baffle 801, directly fall into the foreign matter plate 804, and then fall out of the rainwater collection box 5 from the foreign matter plate 804. Or the solid foreign matters firstly strike the rain baffle 801 and then strike the first filter plate 802, fall along the first filter plate 802 and then fall into the foreign matter plate 804, and finally are discharged from the rainwater collection box 5 from the foreign matter opening.

The power generation device 7 comprises a supporting bin 701, a power generation rotating shaft 702, a rotating fan 703, a power generation box 704, a power generation coil 705, a telescopic spring 706, a magnet column 707 and a work cam 708. The supporting bin 701 is fixedly arranged at the lower end of the acting cavity 9, and the upper end of the supporting bin 701 is connected with the air outlet pipeline 10. The power generation rotating shaft 702 is vertically and movably arranged at the center of the supporting bin 701, and the lower end of the power generation rotating shaft extends out of the supporting bin 701 and is fixedly provided with a work doing cam 708. The rotating fan 703 is fixedly disposed on the power generation rotating shaft 702, and can receive the airflow from the air outlet duct 10 and drive the power generation rotating shaft 702 to rotate in one direction. The lower end of the supporting bin 701 is fixedly provided with a power generation box 704, a power generation coil 705 is fixedly arranged in the power generation box 704, the center of the power generation box 704 is provided with a through hole, the top end of the through hole is fixedly connected with one end of a telescopic spring 706, the other end of the telescopic spring 706 is fixedly connected with a magnet column 707, one end of the magnet column 707 is in contact with the acting cam 708, and the other end of the magnet column 707 is arranged in the through hole in a sliding mode. The power generation box 704 is electrically connected to the control box 2. The rotating fan 703 receives the airflow of the air outlet pipeline 10 from the upper end of the supporting bin 701 and drives the power generation rotating shaft 702 to rotate in a single direction through the rotating fan 703, the power generation rotating shaft 702 drives the acting cam 708 to rotate, the contact surfaces of different heights of the acting cam 708 are in contact with the magnet column 707, and therefore the magnet column 707 can be driven to move back and forth under the cooperation of the telescopic spring 706, and the power generation coil 705 continuously cuts the magnetic induction line to generate current. The power generation device 7 can effectively utilize the gravity of the foreign matters impacting the rain shield 801 and the rainwater impacting the rain shield 801 in heavy rain weather to realize power generation, and the technical effect of saving energy is achieved.

The power generation device 7 further comprises a plurality of auxiliary acting mechanisms, and each auxiliary acting mechanism comprises an elastic connecting rod 11, a plurality of windward blocks 12 and a ratchet mechanism 13. The part of the lower end of the power generation rotating shaft 702 outside the supporting bin 701 is further provided with a ratchet mechanism 13, and the ratchet mechanism 13 is used for driving the power generation rotating shaft 702 to rotate in a single direction, is a common mechanical structure, and is not described in detail here. One end of the elastic connecting rod 11 is connected with the ratchet mechanism 13, and the other end is provided with a windward block 12. A plurality of auxiliary power mechanisms are alternately arranged at the lower end of the power generation rotating shaft 702. The ratchet mechanism 13 rotates in the same direction as the rotating fan 703. When there is no rain but wind, the power generation device 7 can generate power by the auxiliary power mechanism. Wind blows to the windward block 12, under the action of the ratchet mechanism 13, the windward block 12 can drive the elastic connecting rod 11 to rotate in a single direction around the power generation rotating shaft 702, the power generation rotating shaft 702 drives the acting cam 708 to rotate, contact surfaces of different heights of the acting cam 708 are in contact with the magnet post 707, and therefore the magnet post 707 can be driven to move back and forth under the cooperation of the telescopic spring 706, and the power generation coil 705 continuously cuts the magnetic induction line to generate current. In rainy days, the ratchet mechanism 13 can prevent the wind opposite to the direction of the power generation rotating shaft 702 from driving the windward block 12 to rotate reversely, and meanwhile, can prevent the windward block 12 from being driven by the power generation rotating shaft 702 to rotate, so that the power generation efficiency of the power generation device 7 is improved.

The filter mechanism also includes a second filter plate 806 and a flushing port 807. The second filter plate 806 is horizontally disposed at one side of the cabinet 503 and located at the same side as the first filter plate 802. The second filter plate 806 is located at the upper end of the water purification area 805, and has one end extending to the outside of the water purification area 805 to form a flushing opening 807. One end of the first filter plate 802 far away from the box 503 is fixedly connected with one end of the second filter plate 806 far away from the box 503. The first filter plate 802 has a greater water filtration rate than the second filter plate 806. The first filter plate 802, the second filter plate 806, and the box 503 constitute a primary filter chamber 505. The rainwater is filtered for the first time by the first filter plate 802, then enters the primary filter chamber 505, then enters the second filter plate 806 for secondary filtration, finally enters the water purification area 805 for temporary storage, and supplies water for the heat dissipation and noise reduction mechanism 4. When the rainfall is great when exceeding the drainage speed of second filter 806, the rainwater can be kept in primary filter chamber 505 temporarily to have partial rainwater to wash away foreign matter board 804 from washing out mouth 807 down flowing, prevent that solid foreign matter and dust from receiving the rainwater effect to bond on foreign matter board 804, play the effect of clean foreign matter board 804, for example the leaf glues on foreign matter board 804 easily.

A communicating pipe is arranged between the first condensation pipe 202 and the second condensation pipe, a flow limiting valve is arranged in the communicating pipe, and the flow limiting valve is electrically connected with the control box 2. The bottom of the first condensation pipe 202 is also provided with a drain pipe which extends into the primary filter chamber 505 and passes through the second condensation pipe for collecting liquid water generated by the first condensation pipe 202 and the second condensation pipe. The control box 2 can control the flow limiting valve to control the flow rate of the cooling liquid inside the first condensation pipe 202 and the second condensation pipe, so as to control the cooling capacity of the first condensation pipe 202 and the second condensation pipe. Moisture entering the control box 2 and the control box 2 is collected in the drain pipe after being liquefied by the first condensation pipe 202 and the second condensation pipe, and is transported to the primary filter chamber 505 through the drain pipe, and then directly enters the water purification area 805 after being filtered by the second filter plate 806, so that a water source is provided for the heat dissipation and noise reduction mechanism 4, and the utilization rate of the water resource is improved.

And a sound insulation material is arranged between the rainwater collecting box 5 and the noise detection barrel 3. The outlet of the outlet pipe 502 is arranged at the upper end of the rain shield 801 and faces the rain shield 801. Set up sound insulation material between rainwater collecting box 5 and the noise detection section of thick bamboo 3 and can avoid the rainwater to pat the noise that produces on rainwater collecting box 5, influence the detection accuracy of noise detection section of thick bamboo 3. The outlet of the water outlet pipe 502 is arranged at the upper end of the rain shield 801, and the water source after the heat dissipation and noise reduction mechanism 4 is used can be discharged to the rain shield 801 again towards the rain shield 801, power is provided for the power generation device 7, the heat dissipation is realized by the filtering process of the rainwater collection box 5, and the reuse rate of the water resource is improved.

It is noted that, in this document, relational terms such as front, back, up, down, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A city noise monitoring system comprises a base (1), a control box (2) and a noise detection cylinder (3), wherein the control box (2) is installed at the upper end of the base (1), the noise detection cylinder (3) is installed at the upper end of the control box (2), and the noise detection cylinder (3) is electrically connected with the control box (2); the method is characterized in that: the periphery of the control box (2) is also provided with a heat dissipation and noise reduction mechanism (4); the upper end of the noise detection barrel (3) is also provided with a rainwater collection box (5); the upper end of the rainwater collection box (5) is provided with an open opening for collecting rainwater, and both sides of the lower end are respectively provided with a water inlet pipe (501) and a water outlet pipe (502) which are connected with the heat dissipation and noise reduction mechanism (4); the water inlet pipe (501) is provided with a water pump electrically connected with the control box (2); the heat dissipation and noise reduction mechanism (4) sequentially comprises an inert gas layer (401), a water injection layer (402) and a sound insulation layer (403) from outside to inside; a sealed cavity is arranged inside the inert gas layer (401) and filled with inert gas; a plurality of layers of water injection pipes (404) which are communicated with each other and are spaced at equal intervals are arranged in the water injection layer (402); wherein, one end of the water injection pipe (404) at the uppermost layer is connected with the water inlet pipe (501), and one end of the water injection pipe (404) at the lowermost end is connected with the water outlet pipe (502); the sound insulation layer (403) is filled with sound insulation material.

2. The urban noise monitoring system according to claim 1, wherein: a first fan (201), a second fan, a first condensation pipe (202) and a second condensation pipe are arranged in the control box (2); the side surface of the control box (2) is provided with a plurality of air inlets (203), and the top surface of the control box (2) facing the noise detection cylinder (3) is provided with a plurality of air outlets; the first fan (201) is arranged at the air inlet (203), and the first condensation pipe (202) is arranged between the first fan (201) and the air inlet (203); the second fan is arranged at the air outlet, and the second condenser pipe is arranged between the second fan and the air outlet; a gap is reserved between the control box (2) and the heat dissipation and noise reduction mechanism (4); the first condenser pipe (202) and the second condenser pipe are filled with cooling liquid flowing circularly.

3. The urban noise monitoring system according to claim 2, wherein: the first fan (201) and the second fan have the same specification and can emit noises with the same frequency; the distance between the first fan (201) and the second fan is equal to the odd multiple of the half wavelength of the noise emitted by the first fan (201).

4. The urban noise monitoring system according to claim 2, wherein: dust screens are arranged at the air inlets (203) and the air outlets; and a buffer spring is arranged between the control box (2) and the base (1).

5. The urban noise monitoring system according to claim 2, wherein: the rainwater collection box (5) also comprises a box body (503), and a filtering mechanism and a telescopic acting mechanism which are arranged in the box body (503); the telescopic working mechanism comprises a telescopic plate (6) and a power generation device (7) which are horizontally and movably arranged on one side of the box body (503); the filtering mechanism comprises a rain shield plate (801), a first filtering plate (802), a partition plate (803), a foreign matter plate (804) and a water purifying area (805); the upper end of the rain shield (801) is provided with a rotating shaft, the rotating shaft is hinged to the upper side of the box body (503), and the rain shield (801) is positioned at the right upper end of the expansion plate (6); when the rain shield (801) rotates along the rotating shaft, the inner end of the expansion plate (6) can be driven to move outwards; one end of the expansion plate (6) penetrates through the box body (503) and extends out of the box body (503); the telescopic acting mechanism is also provided with a working cavity (9) for accommodating the part of the telescopic plate (6) exposed out of the box body (503); the working cavity (9) is fixedly arranged on the outer side of the box body (503), and the lower end of the working cavity (9) is provided with a one-way air valve and an air outlet pipeline (10); the expansion plate (6) is provided with a piston (601) which is hermetically connected with the working cavity (9), and a working spring (602) is arranged between the piston (601) and the working cavity (9); the gas outlet pipeline (10) is externally connected with a power generation device (7); the first filter plate (802) is obliquely arranged on one side, away from the rain baffle (801), of the box body (503), and the first filter plate (802) is positioned at the lower end of the rain baffle (801); the water purification area (805) is arranged at the lower end of the first filter plate (802) and is connected with the water inlet pipe (501); the foreign matter plate (804) is obliquely arranged on one side of the water purifying area (805), and the foreign matter plate (804) and the rain baffle plate (801) are positioned on the same side of the box body (503) and have opposite oblique directions; the partition plate (803) is arranged between the foreign matter plate (804) and the water purification area (805); a foreign matter opening (504) is formed in the position, close to the foreign matter plate (804), of the box body (503).

6. The urban noise monitoring system according to claim 5, wherein: the power generation device (7) comprises a supporting bin (701), a power generation rotating shaft (702), a rotating fan (703), a power generation box (704), a power generation coil (705), a telescopic spring (706), a magnet column (707) and a power application cam (708); the support bin (701) is fixedly arranged at the lower end of the working cavity (9), and the upper end of the support bin (701) is connected with an air outlet pipeline (10); the power generation rotating shaft (702) is vertically and movably arranged at the center of the supporting bin (701), the lower end of the power generation rotating shaft extends out of the supporting bin (701) and is fixedly provided with a working cam (708); the rotating fan (703) is fixedly arranged on the power generation rotating shaft (702), and can receive the airflow of the air outlet pipeline (10) and drive the power generation rotating shaft (702) to rotate in a single direction; a power generation box (704) is fixedly arranged at the lower end of the supporting bin (701), a power generation coil (705) is fixedly arranged in the power generation box (704), a through hole is formed in the center of the power generation box (704), the inner end of the through hole is fixedly connected with one end of a telescopic spring (706), the other end of the telescopic spring (706) is fixedly connected with a magnet column (707), one end of the magnet column (707) is in contact with a work-doing cam (708), and the other end of the magnet column is arranged in the through hole in a sliding mode; the power generation box (704) is electrically connected with the control box (2).

7. The urban noise monitoring system according to claim 6, wherein: the power generation device (7) further comprises a plurality of auxiliary working mechanisms, and each auxiliary working mechanism comprises an elastic connecting rod (11), a plurality of windward blocks (12) and a ratchet mechanism (13); the part of the lower end of the power generation rotating shaft (702) which is positioned outside the supporting bin (701) is also provided with a ratchet mechanism (13), and the ratchet mechanism (13) is used for driving the power generation rotating shaft (702) to rotate in a single direction; one end of the elastic connecting rod (11) is connected with the ratchet mechanism (13), and the other end of the elastic connecting rod is provided with a windward block (12); the auxiliary work applying mechanisms are alternately arranged at the lower end of the power generation rotating shaft (702); the ratchet mechanism (13) and the rotating fan (703) rotate in the same direction.

8. The urban noise monitoring system according to claim 5, wherein: the filter mechanism further comprises a second filter plate (806) and a flushing port (807); the second filter plate (806) is horizontally arranged on one side of the box body (503) and is positioned on the same side as the first filter plate (802); the second filter plate (806) is positioned at the upper end of the water purification area (805), one end of the second filter plate extends to the outside of the water purification area (805) and is provided with a flushing port (807), and one end, far away from the box body (503), of the first filter plate (802) is fixedly connected with one end, far away from the box body (503), of the second filter plate (806); the water filtering speed of the first filter plate (802) is greater than that of the second filter plate (806); the first filter plate (802), the second filter plate (806) and the box (503) constitute a primary filter chamber (505).

9. The urban noise monitoring system according to claim 8, wherein: a communicating pipe is arranged between the first condensing pipe (202) and the second condensing pipe, a flow limiting valve is arranged in the communicating pipe, and the flow limiting valve is electrically connected with the control box (2); the bottom of the first condensation pipe (202) is also provided with a drain pipe which extends into the primary filter chamber (505); the drain pipe also passes through the second condensation pipe and is used for collecting liquid water generated by the first condensation pipe (202) and the second condensation pipe.

10. The urban noise monitoring system according to claim 8, wherein: a sound insulation material is arranged between the rainwater collecting box (5) and the noise detection barrel (3); the outlet of the water outlet pipe (502) is arranged at the upper end of the rain shield (801) and faces the rain shield (801).