CN110237623A - A kind of construction environmental protection device for reducing dust - Google Patents

A kind of construction environmental protection device for reducing dust Download PDF

Info

Publication number
CN110237623A
CN110237623A CN201910547622.9A CN201910547622A CN110237623A CN 110237623 A CN110237623 A CN 110237623A CN 201910547622 A CN201910547622 A CN 201910547622A CN 110237623 A CN110237623 A CN 110237623A
Authority
CN
China
Prior art keywords
bracket
gear
fixed
base plate
movable base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201910547622.9A
Other languages
Chinese (zh)
Inventor
陈莹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201910547622.9A priority Critical patent/CN110237623A/en
Publication of CN110237623A publication Critical patent/CN110237623A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D47/00Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06Spray cleaning
    • B01D47/08Spray cleaning with rotary nozzles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spray Control Apparatus (AREA)

Abstract

The invention discloses a kind of construction environmental protection device for reducing dust, it is related to environment protection architecture technical field, including movable base plate, movable base plate lower rotation is equipped with traveling wheel, there is bracket by rotating mechanism driving rotation on movable base plate, it is vertically fixed bracket on bracket, is sequentially connected with the spraying mechanism of up and down motion on bracket by elevating mechanism, is fixed with the water tank being connected to spraying mechanism on bracket;Present invention flexibility ratio with higher, it can realize that water dish pumps by the elevating mechanism of setting and carry out spray watering, water dish is able to achieve rotation while longitudinal movement, expand spray range, bracket can be driven to rotate by the bracket that rotating mechanism drives, realize the rotary spray effect of water dish circumferential direction, the area of space of spray dust greatly promotes, and while bracket rotation, movable base plate can be moved by the rotation of traveling wheel, realize that self-propelled spraying effect, the dust-laying effect in construction region are significantly improved.

Description

A kind of construction environmental protection device for reducing dust
Technical field
The present invention relates to environment protection architecture technical field, specifically a kind of construction environmental protection device for reducing dust.
Background technique
Building is the general name of building and structures, is people to meet social life needs, utilizes grasped object Matter technological means, and the artificial environment created with certain scientific law, geomantic omen theory and aesthetic principle.Construction it After have building waste and need broken refinement, in order to further handle.
The patent that Authorization Notice No. is CN208563218U discloses a kind of device for reducing dust of construction road, including collection Fan housing and dust cleaning case, the wind-collecting cover are connected with exhaust fan, and the exhaust fan is connected with guide duct, and the guide duct is from dust cleaning case Top insertion dust cleaning case in, clear water is equipped in the dust cleaning case, the top surface that the dust cleaning case corresponds to the other side of guide duct is opened Equipped with air outlet.Although the device is able to achieve the depositing dust to dust, but its structure is relatively fixed, for the area of space of depositing dust More limit to, is unfavorable for the rapid subsidence of the dust of large area, for this purpose, a kind of construction environmental protection device for reducing dust is now provided, with Solve above-mentioned technical problem.
Summary of the invention
The purpose of the present invention is to provide a kind of construction environmental protection device for reducing dust, to solve to propose in above-mentioned background technique The problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of construction environmental protection device for reducing dust, including movable base plate, movable base plate lower rotation are equipped with traveling wheel, movable base plate It is upper to have bracket by rotating mechanism driving rotation, it is vertically fixed bracket on bracket, is sequentially connected on bracket by elevating mechanism There is the spraying mechanism of up and down motion, the water tank being connected to spraying mechanism is fixed on bracket.
As an improvement of the present invention: the spraying mechanism includes water dish, and connection is equipped with rotation on water dish Pivoted housing pipe, water tank is interior to be equipped with immersible pump, bellows is equipped on immersible pump, bellows and revoling tube pass through swivel seal Connection.
As an improvement of the present invention: the elevating mechanism includes the threaded rod of alternate rotation suitable, counterclockwise, spiral shell Screw thread is socketed with thread bush block on rasp bar, and sliding block is fixed on thread bush block, and revoling tube is articulated on sliding block.
As an improvement of the present invention: being fixed with transmission case on the bracket, servo electricity is fixed in transmission case Machine II, the output shaft of servo motor II are coaxially fixed with half gear I and half gear II, are arranged and are fixed with respectively and half on threaded rod The gear I and gear II of gear I and half gear II engaged transmission.
As an improvement of the present invention: being vertically fixed rack gear on the transmission case, engage and be connected on rack gear It is arranged the spur gear wheel being fixed on revoling tube.
As an improvement of the present invention: being vertically fixed on the transmission case and slide the guide rod being arranged for sliding block.
As an improvement of the present invention: the rotating mechanism includes the servo motor being fixed on movable base plate, Servo motor drive connection has worm screw, and engagement is connected with worm gear on worm screw, is coaxially fixed with and is articulated on movable base plate on worm gear Steering shaft, steering shaft upper end is fixed at bracket base center.
As an improvement of the present invention: the bracket base rotary type is equipped with to roll with movable base plate upper surface and support The ball connect.
As an improvement of the present invention: the worm end is coaxially fixed with bevel gear I, engages on bevel gear I It is connected with bevel gear II, is sequentially connected with pulley mechanism between bevel gear II and traveling wheel.
Compared with prior art, the beneficial effects of the present invention are:
Present invention flexibility ratio with higher, can realize that water dish pumps by the elevating mechanism of setting and be sprayed Watering, water dish are able to achieve rotation while longitudinal movement, expand spray range, in addition, the bracket driven by rotating mechanism Bracket can be driven to rotate, realize the rotary spray effect of water dish circumferential direction, the area of space of spray dust greatly promotes, and bracket While rotation, movable base plate can be moved by the rotation of traveling wheel, realize self-propelled spraying effect, construction area The dust-laying effect in domain is significantly improved.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the enlarged diagram in the portion A in Fig. 1;
Fig. 3 is transmission case schematic diagram of internal structure in the present invention;
Fig. 4 is the local overlooking schematic diagram of rotating mechanism in the present invention in the present invention;
Fig. 5 is the connection schematic perspective view of middle gear I of the present invention and half gear I, gear II and half gear II.
In figure: 1- movable base plate, 2- servo motor, 3- steering shaft, 4- worm gear, 5- worm screw, 6- immersible pump, 7- water tank, 8- Bellows, 9- thread bush block, 10- threaded rod, 11- bracket, 12- guide rod, 13- rack gear, 14- sliding block, 15- water dish, 16- cylinder Spur gear, 17- revoling tube, 18- transmission case, 19- servo motor II, 20- bracket, 21- ball, 22- traveling wheel, 23- belt Take turns mechanism, half half gear II of gear I, 29- of 24- bevel gear I, 25- bevel gear II, 26- gear I, 27- gear II, 28-.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment:
Embodiment 1
Fig. 1-5, a kind of construction environmental protection device for reducing dust, including movable base plate 1 are please referred to, 1 lower rotation of movable base plate is equipped with Traveling wheel 22 has bracket 20 by rotating mechanism driving rotation on movable base plate 1, bracket 11 is vertically fixed on bracket 20, is propped up It is sequentially connected with the spraying mechanism of up and down motion on frame 11 by elevating mechanism, is fixed on bracket 20 and is connected to spraying mechanism Water tank 7.
It is filled with clean water in water tank 7, is realized by the spraying mechanism of setting and sprays clean water outward, to construction Regional dustfall dedusting, specifically, spraying mechanism include water dish 15, and connection is equipped with revoling tube 17, water tank 7 on water dish 15 It is interior to be equipped with immersible pump 6, bellows 8 is installed on immersible pump 6, bellows 8 is connect with revoling tube 17 by swivel seal, Immersible pump 6 pumps the clean water in water tank 7, and by the conveying of bellows 8, clean water is carried out in water dish 15 and sprayed outward Out, spray dust's effect is realized.
In order to expand longitudinal spray region of water dish 15, to promote the sedimentation of dust, the present embodiment is also provided with liter Descending mechanism specifically includes the threaded rod 10 of alternate rotation suitable, counterclockwise, and screw thread is socketed with thread bush block 9, spiral shell on threaded rod 10 It is fixed with sliding block 14 on line set block 9, revoling tube 17 is articulated on sliding block 14.
By above-mentioned setting, when threaded rod 10 is suitable, be alternately rotated counterclockwise when, thread bush block 9 can be along on threaded rod 10 Lower reciprocating motion, and then realize that sliding block 14 pumps together with revoling tube 17 and water dish 15, realize water dish 15 Longitudinal different spatial is sprayed, spray region is effectively expanded, realizes efficient depositing dust.
In addition, being fixed with transmission case 18 on bracket 20, servo motor II19, servo motor II19 are fixed in transmission case 18 Output shaft be coaxially fixed with teeth towards opposite half gear I28 and half gear II29, be arranged and be fixed with point on threaded rod 10 Not with the gear I26 and gear II27 of half gear I28 and half gear II29 engaged transmission.
Servo motor II19 is for driving half gear I28 and half gear II29 to rotate synchronously, when half gear I28 and half gear II29, which rotates and distinguishes interval, engages connection with gear I26 and gear II27, realizes the intermittent rotation of threaded rod 10, and servo is electric Machine II19 can forward and backward alternately realize threaded rod 10 forward and backward so that water dish 15 realize it is intermittent it is upper under backhaul It is dynamic.
Embodiment 2
On the basis of embodiment 1, in order to further enhance dust-laying effect, rack gear 13, tooth are vertically fixed on transmission case 18 Engagement is connected with the spur gear wheel 16 for being arranged and being fixed on revoling tube 17 on item 13, when water dish 15 pumps When, spur gear wheel 16 engages connection with rack gear 13, realizes that spur gear wheel 16 drives revoling tube 17 to rotate, and then realize The effect that rotation sprinkling clean water is carried out while revoling tube 17 moves up and down, further promotes aerial dust and cleaning Faster dust settling effect is realized in the quick combination of water.
The guide rod 12 being arranged is slided for sliding block 14 in addition, being vertically fixed on transmission case 18, is moved down when on water dish 15 When dynamic, sliding block 14 is slided up and down along guide rod 12, is played the guide and limit effect vertically moved to water dish 15, be ensure that water spray The steady progress of the mobile spray of disk 15.
Circumferential spraying effect is carried out in order to be able to achieve water dish 15, the present apparatus is also provided with rotating mechanism comprising fixed Servo motor 2 on movable base plate 1, the drive connection of servo motor 2 have worm screw 5, and engagement is connected with worm gear 4, worm gear on worm screw 5 The steering shaft 3 being articulated on movable base plate 1 is coaxially fixed on 4,3 upper end of steering shaft is fixed on 20 bottom center of bracket, support 20 lower rotation formula of frame, which is equipped with, rolls the ball 21 abutted with 1 upper surface of movable base plate.
By above-mentioned setting, servo motor 2 is for driving worm screw 5 to rotate, and worm screw 5 is by being engaged with the worm gear 4 of connection Drive steering shaft 3 rotate, at this time steering shaft 3 drive bracket 20 rotate, realize water dish 15 around 3 vertical axis of steering shaft into Row hoop rotation, the dust of the surrounding of device can be sprayed.
In addition, 5 end of worm screw is coaxially fixed with bevel gear I24, engagement is connected with bevel gear II25 on bevel gear I24, bores Pulley mechanism 23 is sequentially connected between gear II25 and traveling wheel 22, while worm screw 5 rotates, bevel gear I24 is therewith Rotation, bevel gear I24 drive the bevel gear II25 rotation being engaged with, and bevel gear II25 drives walking by pulley mechanism 23 22 rotation of wheel, realizes mobile, i.e., the self-propelled clean water spraying effect in the position of present apparatus entirety, and the building by depositing dust is applied Work area domain is expanded, and depositing dust dedusting is more efficient.
In conclusion present invention flexibility ratio with higher, can realize about 15 water dish by the elevating mechanism of setting Reciprocating motion carries out spray watering, and water dish 15 is able to achieve rotation while longitudinal movement, expands spray range, in addition, by The bracket 20 of rotating mechanism driving can drive bracket 11 to rotate, and realize the circumferential rotary spray effect of water dish 15, spray dust Area of space greatly promote, and bracket 20 rotate while, movable base plate 1 can be moved by the rotation of traveling wheel 22, Realize that self-propelled spraying effect, the dust-laying effect in construction region are significantly improved.
It should be strongly noted that although this specification is described in terms of embodiments, but not each embodiment It only contains an independent technical solution, this description of the specification is merely for the sake of clarity, those skilled in the art It should consider the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms art technology The other embodiments that personnel are understood that, the preferred embodiment of the technical program above described embodiment only expresses, Describe more specific and detailed, but it cannot be understood as the limitations to the technical program the scope of the patents.It should be understood that It is that for those of ordinary skill in the art, without departing from the inventive concept of the premise, several changes can also be made Shape, improvement and substitution, these belong to the protection scope of the technical program.The protection scope of the technical program patent should be with appended Subject to claim.

Claims (9)

1. a kind of construction environmental protection device for reducing dust, including movable base plate (1), movable base plate (1) lower rotation is equipped with traveling wheel (22), which is characterized in that have bracket (20) on the movable base plate (1) by rotating mechanism driving rotation, erected on bracket (20) It is directly fixed with bracket (11), is sequentially connected with the spraying mechanism of up and down motion, bracket (20) on bracket (11) by elevating mechanism On be fixed with the water tank (7) being connected to spraying mechanism.
2. construction environmental protection device for reducing dust according to claim 1, which is characterized in that the spraying mechanism includes water spray Disk (15) is connected on water dish (15) and is equipped with revoling tube (17), is equipped with immersible pump (6) in water tank (7), on immersible pump (6) It is equipped with bellows (8), bellows (8) is connect with revoling tube (17) by swivel seal.
3. construction environmental protection device for reducing dust according to claim 1, which is characterized in that the elevating mechanism include it is suitable, The threaded rod (10) of alternate rotation counterclockwise, screw thread is socketed with thread bush block (9) on threaded rod (10), solid on thread bush block (9) Surely have sliding block (14), revoling tube (17) is articulated on sliding block (14).
4. construction environmental protection device for reducing dust according to claim 3, which is characterized in that be fixed on the bracket (20) Transmission case (18) is fixed with servo motor II(19 in transmission case (18)), servo motor II(19) output shaft be coaxially fixed with Half gear I(28) and half gear II(29), be arranged on threaded rod (10) be fixed with respectively with half gear I(28) and half gear II (29) the gear I(26 of engaged transmission) and gear II(27).
5. construction environmental protection device for reducing dust according to claim 4, which is characterized in that vertical on the transmission case (18) It is fixed with rack gear (13), engagement is connected with the spur gear wheel (16) for being arranged and being fixed on revoling tube (17) on rack gear (13).
6. construction environmental protection device for reducing dust according to claim 4, which is characterized in that vertical on the transmission case (18) It is fixed with and slides the guide rod (12) being arranged for sliding block (14).
7. construction environmental protection device for reducing dust according to claim 1, which is characterized in that the rotating mechanism includes fixing Servo motor (2) on movable base plate (1), servo motor (2) drive connection have worm screw (5), engage and be connected on worm screw (5) Worm gear (4) is coaxially fixed with the steering shaft (3) being articulated on movable base plate (1) on worm gear (4), and steering shaft (3) upper end is fixed on Bracket (20) bottom center.
8. construction environmental protection device for reducing dust according to claim 7, which is characterized in that bracket (20) lower rotation Formula, which is equipped with, rolls the ball (21) abutted with movable base plate (1) upper surface.
9. construction environmental protection device for reducing dust according to claim 7, which is characterized in that worm screw (5) end is coaxial Be fixed with bevel gear I(24), bevel gear I(24) on engagement be connected with bevel gear II(25), bevel gear II(25) and traveling wheel (22) pulley mechanism (23) are sequentially connected between.
CN201910547622.9A 2019-06-24 2019-06-24 A kind of construction environmental protection device for reducing dust Withdrawn CN110237623A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910547622.9A CN110237623A (en) 2019-06-24 2019-06-24 A kind of construction environmental protection device for reducing dust

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910547622.9A CN110237623A (en) 2019-06-24 2019-06-24 A kind of construction environmental protection device for reducing dust

Publications (1)

Publication Number Publication Date
CN110237623A true CN110237623A (en) 2019-09-17

Family

ID=67888958

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910547622.9A Withdrawn CN110237623A (en) 2019-06-24 2019-06-24 A kind of construction environmental protection device for reducing dust

Country Status (1)

Country Link
CN (1) CN110237623A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110860153A (en) * 2019-12-03 2020-03-06 南京工业职业技术学院 Circulated dust fall system that sprays in building engineering construction site
CN110924696A (en) * 2019-12-13 2020-03-27 通号建设集团贵州工程有限公司 Waterproof device for building engineering
CN111109056A (en) * 2020-02-03 2020-05-08 仙游县六合院农业开发有限公司 Agricultural automatic spraying irrigation device
CN111632323A (en) * 2020-06-10 2020-09-08 王桂荣 Installation device for water spraying pipe for fire fighting
CN112056185A (en) * 2020-09-28 2020-12-11 深圳市绿源物业环保产业有限公司 Garden green space maintenance system
CN112191064A (en) * 2020-10-10 2021-01-08 浙江中浔环保科技有限公司 Vehicle-mounted movable environment-friendly dust removal spraying equipment
CN112516717A (en) * 2020-12-01 2021-03-19 淮南市百邦气动科技有限公司 Micron-sized dry fog dust suppression device
CN112808728A (en) * 2020-12-20 2021-05-18 宜昌市天信光学仪器有限公司 Reciprocating type belt cleaning device is used in processing of optical glass piece
CN115155872A (en) * 2022-07-28 2022-10-11 郑州市疾病预防控制中心 Preventive medicine is with indoor disinfection atomizer
CN115400523A (en) * 2022-08-25 2022-11-29 江苏前途建设有限公司 Construction site dust fall equipment that sprays through rotary type multiple range

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107630715A (en) * 2017-09-01 2018-01-26 彭斌明 A kind of constructing tunnel dust falling device
CN108855677A (en) * 2018-08-30 2018-11-23 深圳市福瑞禧科技发展有限公司 High-efficient sprinkler of job site antiseptic solution
CN108952792A (en) * 2018-07-09 2018-12-07 朱绍雄 A kind of energy-saving watering and lowering dust equipment of constructing tunnel
CN108970844A (en) * 2018-08-17 2018-12-11 南京奥新可工程科技有限公司 A kind of municipal works thimerosal flusher
CN208451229U (en) * 2018-04-08 2019-02-01 宜昌东阳建设工程有限公司 A kind of wall surface grinding device for construction
CN208641864U (en) * 2018-06-14 2019-03-26 江西省天翌光电有限公司 A kind of adjustable capacitor touch screen Defoaming machine support platform
CN109631707A (en) * 2019-01-08 2019-04-16 华东交通大学 It is a kind of for Tunnel Blasting when quick depositing dust device and method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107630715A (en) * 2017-09-01 2018-01-26 彭斌明 A kind of constructing tunnel dust falling device
CN208451229U (en) * 2018-04-08 2019-02-01 宜昌东阳建设工程有限公司 A kind of wall surface grinding device for construction
CN208641864U (en) * 2018-06-14 2019-03-26 江西省天翌光电有限公司 A kind of adjustable capacitor touch screen Defoaming machine support platform
CN108952792A (en) * 2018-07-09 2018-12-07 朱绍雄 A kind of energy-saving watering and lowering dust equipment of constructing tunnel
CN108970844A (en) * 2018-08-17 2018-12-11 南京奥新可工程科技有限公司 A kind of municipal works thimerosal flusher
CN108855677A (en) * 2018-08-30 2018-11-23 深圳市福瑞禧科技发展有限公司 High-efficient sprinkler of job site antiseptic solution
CN109631707A (en) * 2019-01-08 2019-04-16 华东交通大学 It is a kind of for Tunnel Blasting when quick depositing dust device and method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110860153A (en) * 2019-12-03 2020-03-06 南京工业职业技术学院 Circulated dust fall system that sprays in building engineering construction site
CN110924696A (en) * 2019-12-13 2020-03-27 通号建设集团贵州工程有限公司 Waterproof device for building engineering
CN111109056A (en) * 2020-02-03 2020-05-08 仙游县六合院农业开发有限公司 Agricultural automatic spraying irrigation device
CN111632323A (en) * 2020-06-10 2020-09-08 王桂荣 Installation device for water spraying pipe for fire fighting
CN112056185A (en) * 2020-09-28 2020-12-11 深圳市绿源物业环保产业有限公司 Garden green space maintenance system
CN112191064A (en) * 2020-10-10 2021-01-08 浙江中浔环保科技有限公司 Vehicle-mounted movable environment-friendly dust removal spraying equipment
CN112516717A (en) * 2020-12-01 2021-03-19 淮南市百邦气动科技有限公司 Micron-sized dry fog dust suppression device
CN112808728A (en) * 2020-12-20 2021-05-18 宜昌市天信光学仪器有限公司 Reciprocating type belt cleaning device is used in processing of optical glass piece
CN115155872A (en) * 2022-07-28 2022-10-11 郑州市疾病预防控制中心 Preventive medicine is with indoor disinfection atomizer
CN115400523A (en) * 2022-08-25 2022-11-29 江苏前途建设有限公司 Construction site dust fall equipment that sprays through rotary type multiple range
CN115400523B (en) * 2022-08-25 2024-01-12 江苏前途建设有限公司 Construction site dust fall equipment capable of spraying in multiple ranges through rotation

Similar Documents

Publication Publication Date Title
CN110237623A (en) A kind of construction environmental protection device for reducing dust
CN110158524A (en) A kind of municipal administration environmental sanitation streets watering sprinkling truck
CN103272791B (en) Surveillance camera cleaning device
CN110439229A (en) A kind of assembly wall spray-painting plant for building
CN106821162A (en) A kind of motor drives the robot of cleaning wall
CN207121805U (en) A kind of road parking is used with the continuous line-plotting device cleaned
CN201720225U (en) Multi-freedom tri-dimensional hairbrush cleaning apparatus of central air-conditioning airduct cleaning robot
CN112452076A (en) Building engineering environment monitoring device
CN111889272A (en) Spraying assembly for fog gun and using method thereof
CN207489259U (en) A kind of intelligent transportation remote command device based on GIS
CN217613794U (en) Broken dust device in road surface for building highway
CN112870885A (en) Constructional engineering spray dust device
CN214106267U (en) Building engineering environment monitoring device
CN210674633U (en) Environmental protection dust collecting equipment of building engineering construction
CN107961917A (en) A kind of spray range adjustable garden maintenance tree trunk spray coating device
CN218281118U (en) Dust device is used in house construction
CN208036232U (en) A kind of gantry car washer
CN215138162U (en) Dust fall equipment is used in construction
CN215104985U (en) A atomizing raise dust administers protector for energy-conserving building construction working face
CN211080067U (en) Construction road dust device
CN110327720B (en) Water mist gun carriage
CN209568407U (en) A kind of road construction dust-extraction unit
CN221693169U (en) Dust collecting equipment for house construction
CN113634069A (en) Swinging type spraying dust-settling device for road and bridge construction and use method thereof
CN112169510B (en) Air purification equipment for building engineering construction of environmental protection

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication

Application publication date: 20190917

WW01 Invention patent application withdrawn after publication