CN219091553U - Environment-friendly dust fall device for municipal construction - Google Patents
Environment-friendly dust fall device for municipal construction Download PDFInfo
- Publication number
- CN219091553U CN219091553U CN202223467096.1U CN202223467096U CN219091553U CN 219091553 U CN219091553 U CN 219091553U CN 202223467096 U CN202223467096 U CN 202223467096U CN 219091553 U CN219091553 U CN 219091553U
- Authority
- CN
- China
- Prior art keywords
- pipe
- mounting
- sets
- groups
- wall
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses an environment-friendly dust fall device for municipal construction, which comprises a water tank, wherein a groove plate is fixedly arranged at the upper part of the water tank, mounting holes are formed in the front end face and the rear end face of the groove plate, a pipe body is arranged in the groove plate, two groups of mounting screws are welded on the outer wall of the pipe body, one ends of the two groups of mounting screws respectively penetrate through the two groups of mounting holes, mounting nuts are sleeved on the side walls of the two groups of mounting screws, a beam-collecting pipe is fixedly arranged at one end part of the pipe body, an insulating layer is arranged on the inner wall of the beam-collecting pipe, a hydrophobic film is arranged on the inner wall of the insulating layer, and a mounting ring is fixedly arranged at one end part of the beam-collecting pipe. The beneficial effects are that: the utility model adopts the flexible filter screen sleeve, and the filter screen sleeve is arranged, so that the cleaning work of the filter screen structure can be completed without stopping water spraying, and the use practicability of the environment-friendly dust settling device for municipal construction is improved.
Description
Technical Field
The utility model relates to the technical field of municipal construction, in particular to an environment-friendly dust fall device for municipal construction.
Background
Municipal construction refers to various public infrastructure constructions matched with urban life, such as common projects of urban roads, bridges, subways, underground pipelines, tunnels, riverways, rail transit, sewage treatment, garbage treatment and the like, and when municipal construction is actually carried out, a large amount of dust can be generated, the dust settling device is used for multiple times, the dust settling work is completed, and the dust settling device has the advantages of being simple in operation, stable in structure, good in dust settling effect and the like.
The prior art discloses the publication number: the utility model provides an environmental protection dust fall device for municipal works construction, which comprises a machine bod, universal gyro wheel, a controller, a fixed mount, the connecting seat, the installation framework, flange, the fan, the collecting tube, the fixed frame, hollow ring, the atomizer, the raceway, the heat preservation, the hydrophobicity film, the bracing piece, cut apart the pipe, gas pocket and collecting ring, when using, utilize the tail end to be curved segmentation pipe to separate outside water smoke, reduce the air current velocity of flow, and to a certain extent enlarge the scope of water smoke, reach the dust of making near also can contact with water smoke, reach the effect of dust fall, the heat preservation plays the effect of reducing the condensation of water smoke in the collecting tube, the effect of water droplet pile up in the collecting tube in the water smoke is played to the hydrophobicity film, improve the integrality after the water smoke blowout, the slant gas pocket is the passing through of partial air current and provides the space, cut apart the pipe outer wall and forms the air current film, reduce the mist and cut apart outside the contact, conveniently form near water smoke, the effect of dust is carried out to the dust of organism.
Said utility model needs to use fan to blow the sprayed fog to a more distant position, and in order to prevent the impurity from being contained in the flowing air passing through the fan, a filter screen structure is required to be set, and to prevent the impurity in the flowing air from being contaminated on the inner wall of the pipe body structure, and increase the subsequent cleaning workload, but the filter screen structure needs to stop the utility model, so that the filter screen structure can be cleaned, and the practicability of the utility model is reduced.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides an environment-friendly dust fall device for municipal construction, which has the advantage that the cleaning work of a filter screen structure can be completed without stopping water spraying work, thereby solving the problems in the background art.
(II) technical scheme
In order to realize the advantage that the cleaning work of the filter screen structure can be completed without stopping water spraying, the utility model adopts the following specific technical scheme:
the utility model provides an environment-friendly dust fall device for municipal construction, includes the water tank, the upper portion fixed mounting of water tank has the recess board, and the mounting hole has all been seted up to the front and back terminal surface of recess board, the internally mounted of recess board has the body, and the outer wall welding of body has two sets of installation screw rods, and two sets of the one end of installation screw rod runs through respectively two sets of the mounting hole, two sets of the lateral wall of installation screw rod has all cup jointed the installation nut, the one end tip fixed mounting of body has the take-up tube, and the inner wall of take-up tube is provided with the heat preservation to the inner wall of heat preservation is provided with the hydrophobicity film, the one end tip fixed mounting of take-up tube has the collar, and the internally mounted of collar has the collecting ring, the outer wall of dividing the pipe is provided with multiunit gas pocket, the internally mounted of body has the spray pipe, and the inner wall mounting of spray pipe has the atomizer, the outer wall mounting of spray pipe has the coupling hose, the below of body is provided with the pipe, the other end tip of body has the end tip fixed mounting of take-up tube has the take-up tube, and the filter screen is installed to the one end of four sets of flexible sleeve, the filter screen is installed to the four sets of flexible roller, the end of fixed connection roller, the four sets of the end of flexible sleeve is installed to the end, the end of the filter screen is installed to the four sets of flexible roller is fixed to the end, the end of the hose is installed to the end, the end of the hose is fixed to the end, the end is fixed to the end of the hose, and one side of the positioning plate is fixedly provided with a hairbrush plate.
Further, the two groups of bearings on the same side are all positioned on the same horizontal line.
Further, the guide hole has been seted up on the upper portion of water tank, the one end of pipe runs through the guide hole, the outer wall of pipe is fixed to be cup jointed first orifice plate and second orifice plate that cup joints, the welding has multiunit extension spring between first orifice plate and the water tank, the inside of pipe is run through to the one end of coupling hose.
Further, the diameter length of the first sleeved orifice plate and the second sleeved orifice plate is larger than that of the guide hole.
Further, the two groups of mounting screws are matched with the two groups of mounting nut threads.
Further, the upper portion fixed mounting of water tank has the electric cabinet, and the internally mounted of electric cabinet has control panel and battery, control panel passes through electric wire and battery, fan and suction pump electric connection.
Further, four groups of universal wheels are fixedly arranged at the lower part of the water tank.
(III) beneficial effects
Compared with the prior art, the utility model provides an environment-friendly dust fall device for municipal construction, which has the following beneficial effects:
(1) According to the environment-friendly dust-reducing device for municipal construction, the flexible filter screen sleeve is adopted, when the environment-friendly dust-reducing device for municipal construction is actually used, the control panel is utilized, the water suction pump and the fan start to work, external air can enter the installation tube through the flexible filter screen sleeve, impurities in the air can be intercepted by the flexible filter screen sleeve, when the impurities blocked on the surface of the flexible filter screen sleeve need to be cleaned, an operator rotates a plurality of groups of handles by hands by using four groups of bearings, two groups of rotating rollers can be driven to rotate, the two groups of rotating rollers can push the flexible filter screen sleeve to rotate, when the flexible filter screen sleeve passes through the hairbrush plate, the hairbrush plate can scrape the blocking matters on the surface of the flexible filter screen sleeve, and through the arranged flexible filter screen sleeve, the cleaning work of a filter screen structure can be completed without stopping water spraying work, so that the use practicability of the environment-friendly dust-reducing device for municipal construction is improved.
(2) According to the environment-friendly dust settling device for municipal construction, the guide pipe is adopted, before the environment-friendly dust settling device for municipal construction is actually used, an operator rotates the pipe body by using two groups of mounting screws as central axes, when the pipe body presses down the guide pipe, the first sleeved pore plates can extrude the multiple groups of telescopic springs to enable the telescopic springs to be in a compressed state gradually, when one end of the pipe body is lifted up, the multiple groups of telescopic springs are subjected to the action of self elasticity, the guide pipe is enabled to move upwards through pushing the first sleeved pore plates, the end part of the guide pipe is guaranteed to be in close contact with the side wall of the pipe body, the guide pipe is always sleeved on the outer end of the connecting hose in the two cases, foreign objects cannot contact, when the pipe body rotates to an expected angle, the two groups of mounting screws are used for being matched with the threads of the two groups of mounting nuts, the operator rotates the two groups of mounting nuts clockwise and anticlockwise, when the two groups of mounting nuts are in close contact with the outer wall of the pipe body, the use position of the pipe body is fixed, the outer side wall of the outer end of the connecting hose can be prevented from being extruded and closed by the foreign objects, and the environment-friendly dust settling device for municipal construction is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of an environment-friendly dust-settling device for municipal construction;
FIG. 2 is a perspective view of a recess plate according to the present utility model;
FIG. 3 is an enlarged view of FIG. 1A in accordance with the teachings of the present utility model;
FIG. 4 is an enlarged view of B of FIG. 1 in accordance with the teachings of the present utility model;
fig. 5 is an enlarged view of C in fig. 1 according to the present utility model.
In the figure:
1. a water tank; 2. a groove plate; 3. a mounting hole; 4. a tube body; 5. installing a screw; 6. installing a nut; 7. a converging tube; 8. a heat preservation layer; 9. a hydrophobic film; 10. a mounting ring; 11. dividing the tube; 12. air holes; 13. a collection ring; 14. a water spray pipe; 15. an atomizing nozzle; 16. a connecting hose; 17. a guide hole; 18. a conduit; 19. installing a pipe; 20. a blower; 21. a flexible filter screen sleeve; 22. a fixing plate; 23. a bearing; 24. a rotating roller; 25. an extension rod; 26. a grip; 27. a positioning plate; 28. a brush plate; 29. a first sleeved orifice plate; 30. a second sleeved pore plate; 31. and a telescopic spring.
Detailed Description
For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.
According to the embodiment of the utility model, an environment-friendly dust falling device for municipal construction is provided.
The utility model will be further described with reference to the accompanying drawings and the specific embodiments, as shown in fig. 1-5, an environment-friendly dust fall device for municipal construction according to an embodiment of the utility model comprises a water tank 1, a groove plate 2 is fixedly arranged at the upper part of the water tank 1, mounting holes 3 are respectively arranged at the front end surface and the rear end surface of the groove plate 2, a pipe body 4 is arranged in the groove plate 2, two groups of mounting screws 5 are welded on the outer wall of the pipe body 4, one ends of the two groups of mounting screws 5 respectively penetrate through the two groups of mounting holes 3, mounting nuts 6 are sleeved on the side walls of the two groups of mounting screws 5, a beam-receiving pipe 7 is fixedly arranged at one end part of the pipe body 4, an insulating layer 8 is arranged on the inner wall of the beam-receiving pipe 7, a hydrophobic film 9 is arranged on the inner wall of the insulating layer 8, a mounting ring 10 is fixedly arranged at one end part of the beam-receiving pipe 7, a dividing pipe 11 is arranged in the mounting ring 10, the collecting ring 13 is arranged in the partition pipe 11, a plurality of groups of air holes 12 are arranged on the outer wall of the partition pipe 11, a spray pipe 14 is arranged in the partition pipe 4, a plurality of groups of atomizing nozzles 15 are arranged on the inner wall of the spray pipe 14, a connecting hose 16 is arranged on the outer wall of the spray pipe 14, a guide pipe 18 is arranged below the pipe 4, a mounting pipe 19 is welded at the end part of the other end of the pipe 4, a fan 20 is arranged in the mounting pipe 19, a flexible filter screen sleeve 21 is arranged at the side of the mounting pipe 19, a water pump is arranged at the inner bottom surface of the water tank 1, one end part of the connecting hose 16 is clamped with one side of the output end of the water pump, four groups of fixing plates 22 are welded at the end part of the mounting pipe 19, bearings 23 are penetrated through the end faces of the four groups of fixing plates 22, rotating rollers 24 are penetrated through the interiors of the two groups of bearings 23 at the same side, the flexible filter screen sleeve 21 is sleeved on the side walls of the two groups of rotating rollers 24, the extension rods 25 are fixedly installed at the end parts of the two ends of the two groups of rotating rollers 24, the plurality of groups of handles 26 are fixedly installed on the side walls of the four groups of extension rods 25, the locating plate 27 is installed on the outer wall of the installation pipe 19, the hairbrush plate 28 is fixedly installed on one side of the locating plate 27, the cleaning work of the filter screen structure can be completed without stopping water spraying work through the arranged flexible filter screen sleeve 21, and the use practicability of the environment-friendly dust settling device for municipal construction is improved.
In one embodiment, the two sets of bearings 23 on the same side are all positioned on the same horizontal line, so that the two sets of rotating rollers 24 cannot be horizontally installed and used due to dislocation of the two sets of bearings 23 on the same side is avoided.
In one embodiment, the guide hole 17 has been seted up on the upper portion of water tank 1, guide hole 17 is run through to the one end of pipe 18, the fixed first orifice 29 of cup jointing and the second orifice 30 of cup jointing of outer wall of pipe 18 have been cup jointed, the welding has multiunit telescopic spring 31 between first orifice 29 of cup jointing and the water tank 1, the inside of pipe 18 is run through to the one end of coupling hose 16, through the pipe 18 that sets up, can avoid the external end lateral wall of coupling hose 16 to be closed by the extrusion of foreign matter, bring a guarantee for the sustainable use of environmental protection dust device for municipal construction.
In one embodiment, the first and second socket orifice plates 29, 30 have a diameter length greater than the diameter length of the guide hole 17, preventing the conduit 18 from exiting the tank 1.
In one embodiment, the two sets of mounting screws 5 are threadedly engaged with the two sets of mounting nuts 6 to facilitate adjustment of the use positions of the two sets of mounting nuts 6.
In one embodiment, the electric cabinet is fixedly installed on the upper portion of the water tank 1, and the control panel and the storage battery are installed in the electric cabinet, the control panel is electrically connected with the storage battery, the fan 20 and the water pump through wires, the control panel can be realized through simple programming by a person skilled in the art, and the control panel belongs to common general knowledge in the art, is only used and is not modified, so that the control mode and the circuit connection are not described in detail.
In one embodiment, the lower part of the water tank 1 is fixedly provided with four groups of universal wheels, and the four groups of universal wheels are convenient to move and use the environment-friendly dust settling device for municipal construction.
Working principle:
when the environment-friendly dust settling device for municipal construction is actually used, the control panel is utilized to enable the water suction pump and the fan 20 to start working, external air can enter the installation tube 19 through the flexible filter screen sleeve 21, impurities in the air can be intercepted by the flexible filter screen sleeve 21, when the impurities blocked on the surface of the flexible filter screen sleeve 21 need to be cleaned, an operator can rotate a plurality of groups of handles 26 by hand by utilizing four groups of bearings 23 to drive two groups of rotating rollers 24 to rotate, the two groups of rotating rollers 24 can push the flexible filter screen sleeve 21 to rotate, when the flexible filter screen sleeve 21 passes through the brush plate 28, the brush plate 28 can scrape the blocking matters on the surface of the flexible filter screen sleeve 21, the four groups of fixing plates 22 play a role of installing the two groups of rotating rollers 24, and the cleaning work of the filter screen structure can be completed through the arranged flexible filter screen sleeve 21 without stopping water spraying work, the utility model improves the practicability of the environment-friendly dust device for municipal construction, and simultaneously, before the environment-friendly dust device for municipal construction is actually used, an operator rotates the pipe body 4 by using two groups of mounting screws 5 as the central axis, when the pipe body 4 presses down the pipe 18, the first sleeve joint orifice plate 29 can extrude a plurality of groups of telescopic springs 31 to be in a compressed state gradually, when one end of the pipe body 4 lifts up, the plurality of groups of telescopic springs 31 are under the action of self elasticity, the pipe 18 moves upwards by pushing the first sleeve joint orifice plate 29, the end part of the pipe 18 is ensured to be in close contact with the side wall of the pipe body 4, the external end of the connecting hose 16 is always sheathed and covered by the pipe 18 under the two conditions, the external object cannot be contacted, when the pipe body 4 rotates to an expected angle, the two groups of mounting screws 5 are mutually matched with the threads of the two groups of mounting nuts 6, the operator rotates the two groups of mounting nuts 6 clockwise by hand, when two sets of installation nuts 6 and the outer wall in close contact with of body 4, the use position of body 4 is fixed, through the pipe 18 that sets up, can avoid connecting hose 16's external end lateral wall to be closed by the foreign object extrusion, brings a guarantee for municipal construction is with environmental protection dust device's continuous use.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (7)
1. The utility model provides an environment-friendly dust fall device for municipal construction, its characterized in that, including water tank (1), the upper portion fixed mounting of water tank (1) has recess board (2), and around recess board (2) terminal surface all offer mounting hole (3), the internally mounted of recess board (2) has body (4), and the outer wall welding of body (4) has two sets of installation screw rods (5), and two sets of the one end of installation screw rods (5) runs through two sets of respectively mounting hole (3), two sets of the lateral wall of installation screw rods (5) has all cup jointed mounting nut (6), the one end tip fixed mounting of body (4) has a beam tube (7), and the inner wall of beam tube (7) is provided with heat preservation (8) to the inner wall of heat preservation (8) is provided with hydrophobic film (9), the one end tip fixed mounting of beam tube (7) has collar (10), and the internally mounted of collar (10) has partition pipe (11), and partition pipe (11)'s internally mounted has collecting ring (13) respectively the mounting hole (3), the one end tip fixed mounting of beam tube (4) has a beam tube (14), the inner wall (14) of spray pipe (14) is connected with spray pipe (14), the utility model discloses a water tank, including body (4) and brush, the below of body (4) is provided with pipe (18), the other end tip welding of body (4) has installation pipe (19), and the internally mounted of installation pipe (19) has fan (20), flexible filter screen cover (21) are installed to the side of installation pipe (19), the suction pump is installed to the inside bottom surface of water tank (1), the one end tip and the output one side joint of suction pump of coupling hose (16), the one end tip welding of installation pipe (19) has four fixed plate (22) of group, four groups the terminal surface of fixed plate (22) all runs through bearing (23), and with two sets of inside of bearing (23) are run through and are had rotatory roller (24), flexible filter screen cover (21) cup joint the lateral wall at two sets of rotatory roller (24), and the both ends tip of two sets of rotatory roller (24) all fixed mounting have extension rod (25), four sets of lateral wall fixed mounting of extension rod (25) have multiunit handle (26), the outer wall of installation pipe (19) has locating plate (27), and one side of locating plate (27) is installed.
2. An environmental protection dust device for municipal construction according to claim 1, wherein the bearings (23) of the same side are on the same horizontal line.
3. The environment-friendly dust device for municipal construction according to claim 1, wherein the guide hole (17) is formed in the upper portion of the water tank (1), one end of the guide pipe (18) penetrates through the guide hole (17), a first sleeved hole plate (29) and a second sleeved hole plate (30) are fixedly sleeved on the outer wall of the guide pipe (18), a plurality of groups of telescopic springs (31) are welded between the first sleeved hole plate (29) and the water tank (1), and one end of the connecting hose (16) penetrates through the guide pipe (18).
4. An environmental protection dust fall device for municipal construction according to claim 3, wherein the first and second socket hole plates (29, 30) have a diameter longer than that of the guide hole (17).
5. An environmental protection dust device for municipal construction according to claim 1, wherein two sets of the mounting screws (5) are screw-fitted with two sets of the mounting nuts (6).
6. The environment-friendly dust device for municipal construction according to claim 1, wherein an electric cabinet is fixedly arranged on the upper portion of the water tank (1), a control panel and a storage battery are arranged in the electric cabinet, and the control panel is electrically connected with the storage battery, a fan (20) and a water pump through electric wires.
7. The environment-friendly dust device for municipal construction according to claim 1, wherein four groups of universal wheels are fixedly arranged at the lower part of the water tank (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202223467096.1U CN219091553U (en) | 2022-12-21 | 2022-12-21 | Environment-friendly dust fall device for municipal construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202223467096.1U CN219091553U (en) | 2022-12-21 | 2022-12-21 | Environment-friendly dust fall device for municipal construction |
Publications (1)
Publication Number | Publication Date |
---|---|
CN219091553U true CN219091553U (en) | 2023-05-30 |
Family
ID=86462023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202223467096.1U Active CN219091553U (en) | 2022-12-21 | 2022-12-21 | Environment-friendly dust fall device for municipal construction |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN219091553U (en) |
-
2022
- 2022-12-21 CN CN202223467096.1U patent/CN219091553U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN211731834U (en) | A wash unmanned aerial vehicle for insulator on high altitude iron tower | |
CN211435558U (en) | Mine exploitation spraying fan | |
CN209900932U (en) | Building engineering construction dust fall equipment | |
CN219091553U (en) | Environment-friendly dust fall device for municipal construction | |
CN215388422U (en) | Dust spraying and dust falling device for municipal construction | |
CN209252715U (en) | A kind of toilet cleaning device | |
CN217068173U (en) | Building construction dust collector | |
CN105436114B (en) | Semi-automatic power equipment decontamination sweeper | |
CN205804254U (en) | A kind of public Environmental-protecting dust-removing equipment | |
CN207153345U (en) | A kind of fog gun machine with reflux | |
CN216574680U (en) | A sweep device for municipal water supply pipe network | |
CN111501641A (en) | Road surface cleaning device | |
CN217795100U (en) | Dust collector for traffic engineering | |
CN219072476U (en) | Dust suppression device for building construction | |
CN217163685U (en) | Environmental protection dust collector of building engineering construction | |
CN220433505U (en) | Plastic course washs car | |
CN211963521U (en) | High-efficient type thermal power factory is with raise dust treatment facility | |
CN215462936U (en) | Dust device for constructional engineering construction | |
CN217510399U (en) | Floor sweeping robot with air purification function | |
CN219518260U (en) | Water mist dust remover for dust removal in production workshop | |
CN114918182B (en) | Device for cleaning insulator in electrified manner | |
CN219324522U (en) | Dry-wet dual-purpose photovoltaic panel cleaning unmanned plane | |
CN221637692U (en) | Dust collector is used in building engineering construction | |
CN212548786U (en) | Defogging gun for construction site | |
CN219168030U (en) | Multifunctional spraying dust cart capable of preventing dust from rising |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |