CN111744919A - Noise prevention and control equipment for environmental protection engineering - Google Patents
Noise prevention and control equipment for environmental protection engineering Download PDFInfo
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- CN111744919A CN111744919A CN202010636746.7A CN202010636746A CN111744919A CN 111744919 A CN111744919 A CN 111744919A CN 202010636746 A CN202010636746 A CN 202010636746A CN 111744919 A CN111744919 A CN 111744919A
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- 230000007613 environmental effect Effects 0.000 title claims abstract description 22
- 230000002265 prevention Effects 0.000 title description 2
- 239000000428 dust Substances 0.000 claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims description 34
- 239000011521 glass Substances 0.000 claims description 30
- 229920000742 Cotton Polymers 0.000 claims description 21
- 238000004140 cleaning Methods 0.000 claims description 19
- 238000009413 insulation Methods 0.000 claims description 17
- 239000000835 fiber Substances 0.000 claims description 8
- 229920000728 polyester Polymers 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000010521 absorption reaction Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000010405 clearance mechanism Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 206010013954 Dysphoria Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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- B08B1/143—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B11/00—Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto
- B08B11/04—Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto specially adapted for plate glass, e.g. prior to manufacture of windshields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
- G10K11/168—Plural layers of different materials, e.g. sandwiches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
Abstract
The invention relates to the field of environmental protection engineering, in particular to noise control equipment for environmental protection engineering. The structure setting of this device not only can filter the dust that the during operation produced inside and purify, still can not influence syllable-dividing effect, provides a good operational environment for people.
Description
Technical Field
The invention relates to the field of environmental protection engineering, in particular to noise control equipment for environmental protection engineering.
Background
The environmental protection project refers to a project which is specially made for environmental protection, and the environmental pollution problem is treated and solved by organizing activities of a group of people by applying relevant scientific knowledge and technical means based on a certain group of thought targets due to industrial development; the noise is a type of sound which causes dysphoria or harms human health due to too strong volume, and from the viewpoint of environmental protection: all the sounds which obstruct normal rest, study and work of people and interfere with the sounds to be heard by people belong to noises; the processing to some materials can often use equipment such as cutting and polishing in environmental protection engineering construction, can produce great noise this moment, and some environmental protection engineering constructions are near residential area again, though set up some simple bounding walls around the building site, but the noise control effect is poor, also can't hinder sound transmission to high-rise resident to influence people's quality of life.
Chinese patent (publication No. CN 210598276U) discloses a noise control device for environmental protection engineering, which can be hoisted to a construction site through a hoisting device, personnel carry noise reduction earphones, a protection door is closed, material processing is carried out on an operation table, an exhaust fan can play a role of ventilation, sound-proof glass can play a role of sound insulation and can also provide illumination, first sound-proof cotton and second sound-proof cotton can be matched with the sound-proof glass to effectively reduce noise transmission to the outside and reduce interference to the periphery, as more dust is generated in the construction site, a lot of dust can fall after the sound-proof glass is used for a period of time, a motor is started to drive a cleaning brush to slide to clean the dust on the sound-proof glass, the lighting effect is improved, although the device can play a sound-proof effect, a dust removal mechanism is not arranged in the device, because the sound-proof box is relatively closed, when the work is carried out inside, can produce a large amount of dusts and be difficult to discharge, influence workman's healthy to its exhaust mechanism adopts the structure of exhaust fan and air exit, can influence syllable-dividing effect.
Disclosure of Invention
The invention aims to provide noise control equipment for environmental protection engineering, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the noise control equipment for the environmental protection engineering comprises a base, wherein a sound insulation box is arranged on the upper side of the base, lighting glass is arranged at the upper end of the sound insulation box, a plurality of supporting legs are arranged in the middle of the upper side of the base, a table plate is arranged at the upper ends of the supporting legs, a dust hood is arranged on the lower side of the table plate, a plurality of dust suction holes are formed in the table plate, a plurality of branch pipes extending into the dust suction holes are arranged on the upper side of the dust hood, a dust suction pipe is arranged at the lower end of the dust hood, a dust suction box is arranged on the outer side of the sound insulation box, the lower end of the dust suction box is connected with the dust suction pipe, an exhaust pipe is arranged at the upper end of the dust suction box, an electric telescopic mechanism is arranged on the right side inside the sound insulation box, a lifting plate is arranged at the upper end of the electric telescopic mechanism, go out the upper end of bellows and pass through the hose and be connected with the blast pipe, the inside of going out the bellows is provided with heating mechanism and refrigeration mechanism, and the left side lower extreme that goes out the bellows is provided with out the tuber pipe, the outer end that goes out the tuber pipe is provided with out the fan housing, it is provided with a plurality of air-out shower nozzles to go out the fan housing.
As a still further scheme of the invention: and glass cleaning mechanisms are arranged on the upper side and the lower side of the lighting glass.
As a still further scheme of the invention: glass clearance mechanism includes the bilateral symmetry install at the inside upper end of sound-proof box bearing frame, install the threaded rod on the bearing frame, the right-hand member of threaded rod is provided with driving motor, threaded connection has first slide on the threaded rod, the upside of first slide is provided with first clearance cotton, and the cotton upper end of first clearance is contradicted with daylighting glass's downside.
As a still further scheme of the invention: glass clearance mechanism still includes the supporting seat of bilateral symmetry's installation in the outside upper end of sound-proof box, is provided with the slide bar between two supporting seats, sliding connection has the second slide on the slide bar, the downside of second slide is provided with the second and clears up cottonly, the cotton lower extreme of second clearance is contradicted with daylighting glass's upside, and the inside of first slide is provided with first magnet board, and the inside of second slide is provided with the second magnet board.
As a still further scheme of the invention: the magnetic poles of the opposite surfaces of the first magnet plate and the second magnet plate are opposite.
As a still further scheme of the invention: the sound-proof box is made of sound-proof boards, and each sound-proof board comprises an outer base board and an inner base board.
As a still further scheme of the invention: the sound absorption board is characterized in that a polyester fiber sound absorption board and a wood perforated sound absorption board are arranged between the outer substrate and the inner substrate, a vacuum cavity is arranged between the polyester fiber sound absorption board and the wood perforated sound absorption board, and sound absorption cotton is arranged in the vacuum cavity.
Compared with the prior art, the invention has the beneficial effects that: the structure setting of this device, through the dust absorption pipe, the suction box, blast pipe and air-out mechanism's setting, can form a endless dust removal ventilation mechanism in the sound-proof box, not only can filter the dust that the inside during operation produced and purify, still can not influence syllable-dividing effect, for people provide a good operational environment, the structure setting of air-out mechanism, can adjust the angle of air-out and the position of air-out according to people's demand, and can also heat or refrigerate according to the demand, satisfy different user demands, improve the travelling comfort of workman's work, thereby guarantee the efficiency of work.
Drawings
Fig. 1 is a schematic structural diagram of the device.
Fig. 2 is a schematic structural view of the air outlet mechanism.
FIG. 3 is a partial perspective view of the glass cleaning mechanism.
Fig. 4 is a schematic view of the structure of the baffle plate.
1-base, 2-sound insulation box, 3-lighting glass, 4-support leg, 5-table, 6-dust suction box, 7-dust suction hood, 8-branch pipe, 9-dust suction hole, 10-dust suction pipe, 11-exhaust pipe, 12-electric telescopic mechanism, 13-rotating motor, 14-air outlet mechanism, 15-hose, 16-bearing seat, 17-threaded rod, 18-driving motor, 19-supporting seat, 20-sliding rod, 21-lifting plate, 22-air outlet box, 23-heating mechanism, 24-refrigerating mechanism, 25-air outlet pipe, 26-air outlet hood, 27-air outlet nozzle, 28-first sliding seat, 29-first cleaning cotton, 30-first magnet plate, 31-second sliding seat, 32-second cleaning cotton, 33-second magnet plate, 34-outer substrate, 35-inner substrate, 36-polyester fiber sound-absorbing plate, 37-wood perforated sound-absorbing plate, 38-vacuum cavity and 39-sound-absorbing cotton.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
Example one
Referring to fig. 1-4, in the embodiment of the present invention, a noise control apparatus for environmental protection engineering includes a base 1, a sound insulation box 2 is disposed on an upper side of the base 1, lighting glass 3 is disposed on an upper end of the sound insulation box 2, a plurality of support legs 4 are disposed in a middle portion of an upper side of the base 1, a table plate 5 is disposed on upper ends of the support legs 4, a dust hood 7 is disposed on a lower side of the table plate 5, a plurality of dust suction holes 9 are formed on the table plate 5, a plurality of branch pipes 8 extending into the dust suction holes 9 are disposed on an upper side of the dust hood 7, a dust suction pipe 10 is disposed on a lower end of the dust hood 7, a dust suction box 6 is disposed on an outer side of the sound insulation box 2, a lower end of the dust suction box 6 is connected to the dust suction pipe 10, an exhaust pipe 11 is disposed on an upper end of the dust suction box 6, an, rotating electrical machines 13 is installed to the upside of lifter plate 21, rotating electrical machines 13's upper end is provided with air-out mechanism 14, air-out mechanism 14 is including installing the air-out case 22 at rotating electrical machines 13 output, the upper end that goes out bellows 22 is passed through hose 15 and is connected with blast pipe 11, and the inside of air-out case 22 is provided with heating mechanism 23 and refrigerating mechanism 24, and the left side lower extreme that goes out bellows 22 is provided with out tuber pipe 25, the outer end that goes out tuber pipe 25 is provided with out fan housing 26, be provided with a plurality of air-out shower nozzles 27 on the fan housing 26. The structure of the device is arranged, through the arrangement of the dust suction pipe 10, the dust suction box 6, the exhaust pipe 11 and the air outlet mechanism 14, the dust suction pipe 10 absorbs the air with dust in the box body 1 into the dust suction box 6 for purification and filtration, then the purified air is sent into the box body through the exhaust pipe 11 and the air outlet mechanism 14 and is not contacted with the outside, a circulating dust removal and ventilation mechanism can be formed in the sound insulation box 1, dust generated during the internal work can be filtered and purified, the sound insulation effect can not be influenced, a good working environment is provided for people, the air outlet mechanism 14 can be structurally arranged, the air outlet angle and the air outlet position can be adjusted according to the requirements of people, and can also heat or refrigerate according to the demand, satisfy different user demands, improve the travelling comfort of workman's work to guarantee the efficiency of work.
The upper side and the lower side of the lighting glass 3 are provided with glass cleaning mechanisms, each glass cleaning mechanism comprises bearing blocks 16 which are bilaterally symmetrical and are arranged at the upper end in the sound insulation box 1, each bearing block 16 is provided with a threaded rod 17, the right end of each threaded rod 17 is provided with a driving motor 18, each threaded rod 17 is in threaded connection with a first sliding seat 28, the upper side of each first sliding seat 28 is provided with first cleaning cotton 29, the upper end of each first cleaning cotton 29 is abutted against the lower side of the lighting glass 3, each glass cleaning mechanism further comprises supporting seats 19 which are bilaterally symmetrical and are arranged at the upper end outside the sound insulation box 1, a sliding rod 20 is arranged between the two supporting seats 19, each sliding rod 20 is in sliding connection with a second sliding seat 31, the lower side of the second sliding seat 31 is provided with second cleaning cotton 32, the lower end of the second cleaning cotton 32 is abutted against the upper side of the lighting glass 3, the second slider 31 is provided with a second magnet plate 33 inside, and the magnetic poles of the opposing faces of the first magnet plate 30 and the second magnet plate 33 are opposite. The setting of this structure drives threaded rod 17 through driving motor 18 and rotates to drive first slide 28 side-to-side movement, thereby utilize first clearance cotton 29 to clear up daylighting glass's downside, first magnet board 30 in first slide 28 drives second slide 31 synchronous motion through second magnet board 33 simultaneously, realizes the clearance to daylighting glass 3 upside, guarantees daylighting glass 3's daylighting effect, and the practicality is strong.
Example two
On the basis of embodiment one, sound-proof box 1 adopts the acoustic celotex board to make, the acoustic celotex board includes outer base plate 34 and interior base plate 35, be provided with polyester fiber acoustic panel 36 and wooden perforation acoustic panel 37 between outer base plate 34 and the interior base plate 35, be provided with vacuum chamber 38 between polyester fiber acoustic panel 36 and the wooden perforation acoustic panel 37, be provided with in the vacuum chamber 38 and inhale sound cotton 39. The polyester fiber sound-absorbing board 36, the wood perforated sound-absorbing board 37, the vacuum cavity 38 and the sound-absorbing cotton 39 are matched with each other, so that the noise generated during work can be reduced to the greatest extent, and the environment-friendly function is realized.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. The noise control equipment for the environmental protection engineering comprises a base (1), wherein a sound insulation box (2) is arranged on the upper side of the base (1), lighting glass (3) is arranged at the upper end of the sound insulation box (2), a plurality of supporting legs (4) are arranged in the middle of the upper side of the base (1), a table plate (5) is arranged at the upper end of each supporting leg (4), the noise control equipment is characterized in that a dust hood (7) is arranged on the lower side of each table plate (5), a plurality of dust suction holes (9) are formed in each table plate (5), a plurality of branch pipes (8) extending into the dust suction holes (9) are arranged on the upper side of each dust hood (7), a dust suction pipe (10) is arranged at the lower end of each dust hood (7), a dust suction box (6) is arranged on the outer side of the sound insulation box (2), the lower end of each dust suction box (6) is connected with the corresponding dust suction pipe, the inside right side of sound-proof box (2) is provided with electronic telescopic machanism (12), the upper end of electronic telescopic machanism (12) is provided with lifter plate (21), rotating electrical machines (13) are installed to the upside of lifter plate (21), the upper end of rotating electrical machines (13) is provided with air-out mechanism (14), air-out mechanism (14) are including installing play bellows (22) at rotating electrical machines (13) output, the upper end that goes out bellows (22) is passed through hose (15) and is connected with blast pipe (11), goes out being provided with heating mechanism (23) and refrigerating mechanism (24) of the inside of bellows (22), and the left side lower extreme that goes out bellows (22) is provided with out tuber pipe (25), the outer end that goes out tuber pipe (25) is provided with out fan housing (26), be provided with a plurality of air-out shower nozzles (27) on.
2. The noise control apparatus for environmental protection engineering according to claim 1, wherein glass cleaning mechanisms are provided on upper and lower sides of the lighting glass (3).
3. The noise control equipment for the environmental protection engineering according to claim 2, wherein the glass cleaning mechanism comprises bearing blocks (16) which are arranged at the upper end inside the sound insulation box (1) in a bilateral symmetry manner, a threaded rod (17) is arranged on each bearing block (16), a driving motor (18) is arranged at the right end of each threaded rod (17), a first sliding seat (28) is connected onto each threaded rod (17) in a threaded manner, first cleaning cotton (29) is arranged on the upper side of each first sliding seat (28), and the upper end of each first cleaning cotton (29) is abutted against the lower side of the lighting glass (3).
4. The noise control equipment for the environmental protection engineering according to claim 3, wherein the glass cleaning mechanism further comprises bilaterally symmetrical supporting seats (19) installed at the upper end of the outside of the soundproof box (1), a sliding rod (20) is arranged between the two supporting seats (19), a second sliding seat (31) is connected onto the sliding rod (20) in a sliding manner, second cleaning cotton (32) is arranged on the lower side of the second sliding seat (31), the lower end of the second cleaning cotton (32) is abutted against the upper side of the lighting glass (3), a first magnet plate (30) is arranged inside the first sliding seat (28), and a second magnet plate (33) is arranged inside the second sliding seat (31).
5. The noise control apparatus for environmental protection engineering according to claim 4, wherein the opposing faces of the first magnet plate (30) and the second magnet plate (33) have opposite magnetic poles.
6. The noise control apparatus for environmental protection engineering according to claim 1 or 5, wherein the soundproof box (1) is made of a soundproof plate including an outer base plate (34) and an inner base plate (35).
7. The noise control equipment for the environmental protection project according to claim 6, wherein a polyester fiber sound-absorbing plate (36) and a wood perforated sound-absorbing plate (37) are arranged between the outer substrate (34) and the inner substrate (35), a vacuum chamber (38) is arranged between the polyester fiber sound-absorbing plate (36) and the wood perforated sound-absorbing plate (37), and sound-absorbing cotton (39) is arranged in the vacuum chamber (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010636746.7A CN111744919A (en) | 2020-07-03 | 2020-07-03 | Noise prevention and control equipment for environmental protection engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010636746.7A CN111744919A (en) | 2020-07-03 | 2020-07-03 | Noise prevention and control equipment for environmental protection engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111744919A true CN111744919A (en) | 2020-10-09 |
Family
ID=72679240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010636746.7A Withdrawn CN111744919A (en) | 2020-07-03 | 2020-07-03 | Noise prevention and control equipment for environmental protection engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111744919A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343192A (en) * | 2020-11-03 | 2021-02-09 | 河南省力基天源建设工程有限公司 | Noise prevention and control equipment for environmental protection engineering |
| CN112696628A (en) * | 2021-01-11 | 2021-04-23 | 李健东 | Energy-saving LED lamp with good heat dissipation effect |
-
2020
- 2020-07-03 CN CN202010636746.7A patent/CN111744919A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343192A (en) * | 2020-11-03 | 2021-02-09 | 河南省力基天源建设工程有限公司 | Noise prevention and control equipment for environmental protection engineering |
| CN112696628A (en) * | 2021-01-11 | 2021-04-23 | 李健东 | Energy-saving LED lamp with good heat dissipation effect |
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Application publication date: 20201009 |