CN109966826A - A kind of pre- haze device for reducing dust in construction site - Google Patents

A kind of pre- haze device for reducing dust in construction site Download PDF

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Publication number
CN109966826A
CN109966826A CN201910343180.6A CN201910343180A CN109966826A CN 109966826 A CN109966826 A CN 109966826A CN 201910343180 A CN201910343180 A CN 201910343180A CN 109966826 A CN109966826 A CN 109966826A
Authority
CN
China
Prior art keywords
haze
construction site
tube
water
bevel gear
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.)
Pending
Application number
CN201910343180.6A
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Chinese (zh)
Inventor
王旭
周毅
付明刚
钱骥
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.)
Chongqing Shengxia Guoshi Technology Co Ltd
Original Assignee
Chongqing Shengxia Guoshi Technology Co Ltd
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 Chongqing Shengxia Guoshi Technology Co Ltd filed Critical Chongqing Shengxia Guoshi Technology Co Ltd
Priority to CN201910343180.6A priority Critical patent/CN109966826A/en
Publication of CN109966826A publication Critical patent/CN109966826A/en
Pending legal-status Critical Current

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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

Abstract

The invention belongs to haze purification device fields, more particularly to a kind of pre- haze device for reducing dust in construction site, including pedestal, wheel is rotatably connected on the bottom four corners position of pedestal, the top of pedestal is successively fixedly installed with water storage tank, water pump and attachment base, the water inlet end of water pump extends in water storage tank, attachment base is equipped with connection chamber, the water outlet of water pump extends in connecting cavity room and is sealedly and fixedly connected with the side bottom interior wall for connecting chamber, connects sealing in the other side top inner wall of chamber and is fixedly installed with connecting tube.Operation of the present invention is simple, connecting column may be implemented by starting water pump and drive motor and carry out water spray and connecting column progress circulatory motion, and then effective cleaning is carried out to the dust in construction site, simultaneously because the apopore size on circulation groove is spaced, decrease the generation of water mist, the dust situation for improving construction site, allows construction worker to reduce the soakage of dust, improves the health of worker.

Description

A kind of pre- haze device for reducing dust in construction site
Technical field
The invention belongs to haze purification device fields, are related to a kind of pre- haze device for reducing dust in construction site.
Background technique
In recent years, continuously there is haze sky in selected areas of China, and many cities continuously issue haze weather orange warning.Mist Haze day not only influences the visual field of people, it is often more important that increases the disease incidence of respiratory tract, cardiovascular patient, data are shown PM2.5 is to make one pathogenic principal element, and PM2.5 refers to particulate matter of the diameter less than or equal to 2.5 microns in atmosphere, also referred to as Lung particulate matter.
Building site in construction, remaining mud flows on ground dry up after, will result in when worker is movable again a large amount of Fugitive dust also can constantly be crossed because of worker's activity or automobile, be thrown on city again even if these particulate matters drop back into ground Sky, and this phenomenon all may cause haze weather, so, during construction, the effect of watering is effectively to make ash Dirt freedom degree reduces, and because being played a role to depositing dust without raising again, and existing pre- haze is dropped with construction site Dirt device the shortcomings that there are cumbersome, watering is uneven, heavy workload, thus need to research and develop it is a kind of it is easy to operate, watering is equal The pre- haze device for reducing dust in construction site even, that workload is small.
Summary of the invention
In view of this, the present invention be easy to cause fugitive dust to solve powdered building waste in construction site, to building The body for building worker causes sense of discomfort, while the problem of can also jeopardize construction worker's health, providing a kind of construction site Pre- haze device for reducing dust.
In order to achieve the above objectives, the present invention provides a kind of pre- haze device for reducing dust in construction site, including pedestal, described Wheel is rotatably connected on the bottom four corners position of pedestal, the top of the pedestal is successively fixedly installed with water storage tank, water pump And attachment base, the water inlet end of the water pump extend in water storage tank, the attachment base is equipped with connection chamber, and the water pump goes out Water end (W.E.) is extended in connecting cavity room and is sealedly and fixedly connected with the side bottom interior wall for connecting chamber, described to connect the another of chamber Sealing is fixedly installed with connecting tube on the inner wall of lateral roof, and one end of the connecting tube extends to the outside of attachment base and rotation connection There is rotating mask, is equidistantly sealed on the inner wall of the rotating mask and be fixedly installed with multiple connecting columns, and one end of multiple connecting columns Run through the inner wall of rotating mask and all extend to the outside of rotating mask, the other end of the connecting column offers circulation groove, described Multiple apopores are equidistantly offered on the side inner wall of circulation groove, the apopore is in the alternate shape of size.
The beneficial effect of this base case is: connecting column may be implemented and spray water by starting water pump and drive motor And connecting column carries out circulatory motion, can carry out effective cleaning to fugitive dust with this, reduce the dust situation in construction site, make The soakage of dust can be reduced by obtaining people.Apopore on circulation groove is smaller, and the droplet sprayed from apopore is smaller, for building The dust removing effects in building site are built with regard to more preferable, but a large amount of droplet mist easy to form, worker's sight is influenced, so that worker's work is tired Difficulty, therefore the apopore on circulation groove is designed as size interphase structure, reduce the formation of water mist.
Further, current limiting cover is fixedly mounted on the side inner wall of the circulation groove, on the side inner wall of the current limliting cover Multiple connecting holes are equidistantly offered, sealing slidably connects cover board in the current limliting cover, equidistantly offers on the cover board Multiple recirculation holes, and recirculation hole matches and is connected with connecting hole and apopore size respectively.The utility model has the advantages that current limliting cover can be with Facilitate control water yield, and the sprinkling distance of control water.
Further, sealing slidably connects movable plate, the fixed peace in the side of the movable plate on the inner wall of the circulation groove Side equipped with fixed link, and fixed link is fixedly installed with connecting rod, and one end of connecting rod extends in current limliting cover and and cover board Side be fixedly connected, the other side of the movable plate is fixedly installed with pull rod, and one end of the pull rod is through the another of circulation groove Side inner wall and the outside for extending to connecting column.The utility model has the advantages that being moved easily cover board.
Further, it is fixedly installed with slip ring on the inner wall of the rotating mask, annular mouth is offered in the connecting tube, and sliding The side of ring extends in annular mouth and is slidably connected with the inner wall of annular mouth, the utility model has the advantages that making rotating mask and connecting tube real Now sealing is slidably connected.
Further, it is fixedly installed with shaft on the side inner wall of the rotating mask, one end of the shaft extends to connection In pipe and it is fixedly installed with the first bevel gear, Rotational Cylindrical, the Rotational Cylindrical are rotatably connected in the bottom interior wall of the connecting tube Upper fixing sleeve is equipped with the second bevel gear, and second bevel gear is meshed with the first bevel gear, the utility model has the advantages that gear is mutually nibbled Conjunction, which can facilitate, drives rotating mask to be rotated.
Further, the top side of the connecting tube is fixedly installed with drive motor, on the output shaft of the drive motor It is fixedly installed with third bevel gear, the top of the Rotational Cylindrical extends to the top of connecting tube and close with the top inner wall of connecting tube Envelope rotation connection, the top of the Rotational Cylindrical is fixedly installed with the 4th bevel gear, the 4th bevel gear and third bevel gear phase Engagement can drive connecting column to carry out annular movement the utility model has the advantages that providing power by drive motor with this.
Further, it is fixedly installed with mounting post on the inner wall of the connecting tube, and is fixedly installed with bearing in mounting post, turned Axis is fixedly connected through bearing and with the inner ring of bearing, the utility model has the advantages that the bearing in mounting post, which is played, carries out rotation limit to shaft Position.
The beneficial effects of the present invention are:
1, the pre- haze device for reducing dust in construction site disclosed in this invention will be in use, starting water pump first can will be deposited Water in water pot is pumped to connecting cavity room, can be conveyed later into rotating mask by connecting tube, and then water will be to Water inlet conveying in circulation groove can move pull rod at this time and cover board is driven to be moved, until by recirculation hole and connecting hole and water outlet Hole is connected, it can will be located at the water in circulation groove and passes through the outside discharge of apopore;
Then starting drive motor can drive third bevel gear to be rotated, due to third bevel gear and the 4th bevel gear It is meshed, so Rotational Cylindrical can be driven to be rotated, when Rotational Cylindrical is rotated, can be driven by the second bevel gear First bevel gear is rotated, so shaft can be driven to be rotated, when shaft is rotated, can drive rotating mask It is rotated, multiple connecting columns can be driven to carry out annular movement with this, so that the water ejected carries out centrifugal movement, i.e., Spray area can effectively be increased.
2, the pre- haze device for reducing dust in construction site disclosed in this invention, it is easy to operate, pass through starting water pump and drive Dynamic motor may be implemented connecting column and carry out water spray and connecting column progress circulatory motion, can be carried out to dust with this effective clear It is clean, the dust situation in construction site is reduced, people is allowed to reduce the soakage of dust, while also improving haze situation.
Other advantages, target and feature of the invention will be illustrated in the following description to a certain extent, and And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke To be instructed from the practice of the present invention.Target of the invention and other advantages can be realized by following specification and It obtains.
Detailed description of the invention
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing excellent The detailed description of choosing, in which:
Fig. 1 is a kind of structural front view of the pre- haze device for reducing dust embodiment in construction site of the present invention;
Fig. 2 is a kind of connection chamber structure main view of the pre- haze device for reducing dust embodiment in construction site of the present invention;
Fig. 3 is a kind of connecting column structural front view of the pre- haze device for reducing dust embodiment in construction site of the present invention;
Fig. 4 is a kind of A schematic enlarged-scale view of the pre- haze device for reducing dust embodiment in construction site of the present invention.
Appended drawing reference: pedestal 1, water storage tank 2, water pump 3, attachment base 4, connecting tube 5, rotating mask 6, connecting column 7, connection chamber 8, circulation groove 9, movable plate 10, pull rod 11, current limliting cover 12, cover board 13, recirculation hole 14, shaft 15, the first bevel gear 16, Rotational Cylindrical 17, the second bevel gear 18, drive motor 19, third bevel gear 20, the 4th bevel gear 21.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from Various modifications or alterations are carried out under spirit of the invention.It should be noted that diagram provided in following embodiment is only to show Meaning mode illustrates basic conception of the invention, and in the absence of conflict, the feature in following embodiment and embodiment can phase Mutually combination.
Wherein, the drawings are for illustrative purposes only and are merely schematic diagrams, rather than pictorial diagram, should not be understood as to this The limitation of invention;Embodiment in order to better illustrate the present invention, the certain components of attached drawing have omission, zoom in or out, not Represent the size of actual product;It will be understood by those skilled in the art that certain known features and its explanation may be omitted and be in attached drawing It is understood that.
The same or similar label correspond to the same or similar components in the attached drawing of the embodiment of the present invention;It is retouched in of the invention In stating, it is to be understood that if there is the orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right", "front", "rear" To be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore is described in attached drawing The term of positional relationship only for illustration, is not considered as limiting the invention, for the ordinary skill of this field For personnel, the concrete meaning of above-mentioned term can be understood as the case may be.
A kind of pre- haze device for reducing dust in construction site as shown in Figs 1-4, including pedestal 1, the bottom four corners position of pedestal 1 It sets and is rotatably connected to wheel, the top of pedestal 1 is successively fixedly installed with water storage tank 2, water pump 3 and attachment base 4, water pump 3 Water inlet end extends in water storage tank 2, and attachment base 4 is equipped with connection chamber 8, and the water outlet of water pump 3 extends in connection chamber 8 simultaneously It is sealedly and fixedly connected with the side bottom interior wall for connecting chamber 8, connects and seal fixed installation in the other side top inner wall of chamber 8 There is connecting tube 5, one end of connecting tube 5 extends to the outside of attachment base 4 and is rotatably connected to rotating mask 6, on the inner wall of rotating mask 6 Equidistant sealing is fixedly installed with multiple connecting columns 7, and one end of multiple connecting columns 7 is run through the inner wall of rotating mask 6 and prolonged The outside of rotating mask 6 is extended to, the other end of connecting column 7 offers circulation groove 9, equidistantly opens up on the side inner wall of circulation groove 9 There are multiple apopores, apopore is in the alternate shape of size.Apopore on circulation groove is smaller, and the droplet sprayed from apopore is smaller, For construction site dust removing effects with regard to more preferable, but a large amount of droplet mist easy to form influences worker's sight, so that worker Operational difficulties, therefore the apopore on circulation groove is designed as size interphase structure, reduce the formation of water mist.By starting water pump 3 and drive motor 19 may be implemented connecting column 7 carry out water spray and connecting column 7 carry out circulatory motion, can be to building ash with this Dirt carries out effective cleaning, reduces the dust situation in construction site, allows people to reduce the soakage of dust, also reduce mist The generation of haze.Starting water pump 3 can pump the water in water storage tank 2 to connection chamber 8 first, later can by connecting tube 5 To be conveyed into rotating mask 6, then water will intake conveying into circulation groove 9, can move pull rod 11 at this time and drive lid Plate 13 is moved, until recirculation hole 14 is connected with connecting hole and apopore, it can leads to the water being located in circulation groove 9 The outside discharge of apopore is crossed, starting drive motor 19 can drive third bevel gear 20 to be rotated, due to third bevel gear 20 It is meshed with the 4th bevel gear 21, it, can be with when Rotational Cylindrical 17 is rotated so Rotational Cylindrical 17 can be driven to be rotated The first bevel gear 16 is driven to be rotated by the second bevel gear 18, so shaft 15 can be driven to be rotated, in shaft 15 when being rotated, and rotating mask 6 can be driven to be rotated, and multiple connecting columns 7 can be driven to carry out annular movements with this, made The water that must be ejected carries out centrifugal movement, it can effectively increases spray area, operation of the present invention is simple, by starting water Pump 3 and drive motor 19 may be implemented connecting column 7 and carry out water spray and the progress circulatory motion of connecting column 7, can be to building with this Dust carries out effective cleaning, reduces the formation of water mist, while also reducing the haze situation in construction site, and people are subtracted The soakage of few dust.
In the present invention, current limiting cover 12 is fixedly mounted on the side inner wall of circulation groove 9, on the side inner wall of current limliting cover 12 etc. Spacing offers multiple connecting holes, and sealing slidably connects cover board 13 in current limliting cover 12, equidistantly offers on cover board 13 multiple Recirculation hole 14, and connecting hole is connected with recirculation hole and apopore respectively, can be convenient control water yield, and the spray of control water Spill distance.
In the present invention, sealing slidably connects movable plate 10 on the inner wall of circulation groove 9, and the side of movable plate 10 is fixedly mounted There is fixed link, and the side of fixed link is fixedly installed with connecting rod, one end of connecting rod extends in current limliting cover 12 and and cover board 13 side is fixedly connected, and the other side of movable plate 10 is fixedly installed with pull rod 11, and one end of pull rod 11 is through the another of circulation groove 9 Side inner wall and the outside for extending to connecting column 7, so that rotating mask 6 realizes that sealing is slidably connected with connecting tube 5.
In the present invention, it is fixedly installed with slip ring on the inner wall of rotating mask 6, offers annular mouth in connecting tube 5, and slip ring Side extends in annular mouth and is slidably connected with the inner wall of annular mouth, so that rotating mask 6 and connecting tube 5 realize that sealing sliding connects It connects.
In the present invention, shaft 15 is fixedly installed on the side inner wall of rotating mask 6, one end of shaft 15 extends to connecting tube In 5 and it is fixedly installed with the first bevel gear 16, is rotatably connected to Rotational Cylindrical 17 in the bottom interior wall of connecting tube 5, in Rotational Cylindrical 17 Fixing sleeve is equipped with the second bevel gear 18, and the second bevel gear 18 is meshed with the first bevel gear 16, facilitates 6 turns of rotating mask of drive It is dynamic.
In the present invention, the top side of connecting tube 5 is fixedly installed with drive motor 19, consolidates on the output shaft of drive motor 19 Dingan County is equipped with third bevel gear 20, and the top of Rotational Cylindrical 17 extends to the top of connecting tube 5 and close with the top inner wall of connecting tube 5 Envelope rotation connection, the top of Rotational Cylindrical 17 is fixedly installed with the 4th bevel gear 21, the 4th bevel gear 21 and 20 phase of third bevel gear Engagement, provides power by drive motor 19, connecting column 7 can be driven to carry out annular movement with this.
In the present invention, it is fixedly installed with mounting post on the inner wall of connecting tube 5, and be fixedly installed with bearing in mounting post, turns Axis 15 is fixedly connected through bearing and with the inner ring of bearing, carries out rotary spacing to shaft 15.
The application method of the pre- haze device for reducing dust in the construction site, starting water pump 3 first can will be in water storage tank 2 Water is pumped to connection chamber 8, can be conveyed later into rotating mask 6 by connecting tube 5, then water will be to circulation groove Water inlet conveying in 9 can move pull rod 11 at this time and cover board 13 is driven to be moved, until by recirculation hole 14 and connecting hole and water outlet Hole is connected, it can will be located at the water in circulation groove 9 by the outside discharge of apopore, starting drive motor 19 can drive the Three bevel gears 20 are rotated, since third bevel gear 20 is meshed with the 4th bevel gear 21, so Rotational Cylindrical can be driven 17 are rotated, and when Rotational Cylindrical 17 is rotated, the first bevel gear 16 can be driven to be rotated by the second bevel gear 18, So shaft 15 can be driven to be rotated, when shaft 15 is rotated, rotating mask 6 can be driven to be rotated, with this Multiple connecting columns 7 can be driven to carry out annular movement, so that the water ejected carries out centrifugal movement, it can effective to increase Big spray area can carry out effective cleaning to building dust with this, reduce the haze situation in construction site.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention Art scheme is modified or replaced equivalently, and without departing from the objective and range of the technical program, should all be covered in the present invention Scope of the claims in.

Claims (7)

1. a kind of pre- haze device for reducing dust in construction site, including pedestal, which is characterized in that the bottom four corners position of the pedestal It sets and is rotatably connected to wheel, the top of the pedestal is successively fixedly installed with water storage tank, water pump and attachment base, the water pump Water inlet end extend in water storage tank, the attachment base be equipped with connection chamber, the water outlet of the water pump extends to connecting cavity Interior is simultaneously sealedly and fixedly connected with the side bottom interior wall for connecting chamber, seals in the other side top inner wall of the connection chamber It is fixedly installed with connecting tube, one end of the connecting tube extends to the outside of attachment base and is rotatably connected to rotating mask, and described turn Equidistantly sealing is fixedly installed with multiple connecting columns on the inner wall of dynamic cover, and the interior of rotating mask is run through in one end of multiple connecting columns Wall and the outside for all extending to rotating mask, the other end of the connecting column offer circulation groove, the side inner wall of the circulation groove On equidistantly offer multiple apopores, the apopore is in the alternate shape of size.
2. the pre- haze device for reducing dust in construction site as described in claim 1, which is characterized in that in the side of the circulation groove Current limiting cover is fixedly mounted on wall, equidistantly offers multiple connecting holes, the current limliting cover on the side inner wall of the current limliting cover Interior sealing slidably connects cover board, equidistantly offers multiple recirculation holes on the cover board, and recirculation hole respectively with connecting hole and Apopore size matches and is connected.
3. the pre- haze device for reducing dust in construction site as described in claim 1, which is characterized in that on the inner wall of the circulation groove Sealing slidably connects movable plate, and the side of the movable plate is fixedly installed with fixed link, and the side of fixed link is fixedly mounted There is connecting rod, one end of connecting rod extends in current limliting cover and is fixedly connected with the side of cover board, the other side of the movable plate It is fixedly installed with pull rod, one end of the pull rod runs through the other side inner wall of circulation groove and extends to the outside of connecting column.
4. the pre- haze device for reducing dust in construction site as described in claim 1, which is characterized in that on the inner wall of the rotating mask It is fixedly installed with slip ring, annular mouth is offered in the connecting tube, and the side of slip ring extends in annular mouth and and annular mouth Inner wall be slidably connected.
5. the pre- haze device for reducing dust in construction site as described in claim 1, which is characterized in that in the side of the rotating mask Shaft is fixedly installed on wall, one end of the shaft extends in connecting tube and is fixedly installed with the first bevel gear, the company Rotational Cylindrical is rotatably connected in the bottom interior wall of adapter tube, fixing sleeve is equipped with the second bevel gear, second umbrella in the Rotational Cylindrical Gear is meshed with the first bevel gear.
6. the pre- haze device for reducing dust in construction site as described in claim 1, which is characterized in that the top one of the connecting tube Side is fixedly installed with drive motor, and third bevel gear is fixedly installed on the output shaft of the drive motor, the Rotational Cylindrical Top extends to the top of connecting tube and seals with the top inner wall of connecting tube and is rotatablely connected, the fixed peace in the top of the Rotational Cylindrical Equipped with the 4th bevel gear, the 4th bevel gear is meshed with third bevel gear.
7. the pre- haze device for reducing dust in construction site as described in claim 1, which is characterized in that the inner wall of the connecting tube is vertical To being fixedly installed with mounting post, and bearing is fixedly installed in mounting post, shaft through bearing and with the inner ring of bearing is fixed connects It connects.
CN201910343180.6A 2019-04-26 2019-04-26 A kind of pre- haze device for reducing dust in construction site Pending CN109966826A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910343180.6A CN109966826A (en) 2019-04-26 2019-04-26 A kind of pre- haze device for reducing dust in construction site

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910343180.6A CN109966826A (en) 2019-04-26 2019-04-26 A kind of pre- haze device for reducing dust in construction site

Publications (1)

Publication Number Publication Date
CN109966826A true CN109966826A (en) 2019-07-05

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106522144A (en) * 2016-12-01 2017-03-22 朱雪梅 Construction site dust removing device used for preventing fog and haze
CN207610318U (en) * 2017-11-27 2018-07-13 西安科技大学 A kind of room air moistening special cart
CN108339354A (en) * 2018-01-18 2018-07-31 合肥智慧龙机械设计有限公司 A kind of outdoor movable haze treatment and purification device
CN109183701A (en) * 2018-10-15 2019-01-11 杜鑫 A kind of construction road surface dustproof atomizer
CN208742175U (en) * 2018-07-04 2019-04-16 郑州市金道市政工程有限公司 A kind of public outdoor device for reducing dust
CN208771654U (en) * 2018-09-10 2019-04-23 宁波伊凯尔塑料科技有限公司 Sealing shower

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106522144A (en) * 2016-12-01 2017-03-22 朱雪梅 Construction site dust removing device used for preventing fog and haze
CN207610318U (en) * 2017-11-27 2018-07-13 西安科技大学 A kind of room air moistening special cart
CN108339354A (en) * 2018-01-18 2018-07-31 合肥智慧龙机械设计有限公司 A kind of outdoor movable haze treatment and purification device
CN208742175U (en) * 2018-07-04 2019-04-16 郑州市金道市政工程有限公司 A kind of public outdoor device for reducing dust
CN208771654U (en) * 2018-09-10 2019-04-23 宁波伊凯尔塑料科技有限公司 Sealing shower
CN109183701A (en) * 2018-10-15 2019-01-11 杜鑫 A kind of construction road surface dustproof atomizer

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