CN115055018A - Efficient house building construction dust collector - Google Patents

Efficient house building construction dust collector Download PDF

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Publication number
CN115055018A
CN115055018A CN202210722511.9A CN202210722511A CN115055018A CN 115055018 A CN115055018 A CN 115055018A CN 202210722511 A CN202210722511 A CN 202210722511A CN 115055018 A CN115055018 A CN 115055018A
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CN
China
Prior art keywords
fixedly connected
inner cavity
backflow
building construction
side wall
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Pending
Application number
CN202210722511.9A
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Chinese (zh)
Inventor
赵行飞
许小飞
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Hefei Weiao Environmental Protection Technology Co ltd
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Hefei Weiao Environmental Protection 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.)
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Publication date
Application filed by Hefei Weiao Environmental Protection Technology Co ltd filed Critical Hefei Weiao Environmental Protection Technology Co ltd
Priority to CN202210722511.9A priority Critical patent/CN115055018A/en
Publication of CN115055018A publication Critical patent/CN115055018A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D2247/04—Regenerating the washing fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D2247/14—Fan arrangements for providing induced draft

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Particles Using Liquids (AREA)

Abstract

The invention discloses an efficient dust removal device for building construction, and relates to the technical field of building construction dust removal, and the efficient dust removal device comprises a fixing frame, wherein the left end surface of the fixing frame is fixedly connected with an air inlet cover, the right end surface of the fixing frame is fixedly connected with a baffle plate, the upper end surface of the fixing frame is fixedly connected with a cleaning liquid tank, the lower end surface of the fixing frame is fixedly connected with a filter tank, and the right side of the baffle plate is provided with a backflow cylinder; the dust removal mechanism is arranged in the inner cavity of the air inlet cover, the backflow mechanism is arranged in the inner cavity of the backflow cylinder, and the backflow mechanism is arranged in the inner cavity of the backflow cylinder; and the inner cavity of the cleaning liquid tank is provided with a liquid injection mechanism. According to the dust removal device, through the arrangement of the dust removal mechanism and the like, dust-containing gas in the air can be sucked into the fixing frame and sprayed for dust removal, through the cooperation of the backflow mechanism, the liquid injection mechanism and the like, the functions of filtering and recycling the cleaning liquid after dust removal are realized, the use cost of the whole device is reduced, and the practicability of the whole device is improved.

Description

Efficient house building construction dust collector
Technical Field
The invention relates to the technical field of building construction dust removal, in particular to an efficient house building construction dust removal device.
Background
Along with the rapid development of national economy, the construction industry develops very rapidly, in cities and rural areas, construction sites are seen everywhere, a large amount of dust is generated during construction, the atmospheric environment is polluted, the dust is often scattered in the construction site, and particularly in an indoor construction environment, if more dust exists, the dust inevitably has great influence on the health of constructors.
However, the existing dust removal device for house building construction generally adopts a spray dust removal mode, after the spray dust removal device works for a long time, the ground is easy to wet, and even water is accumulated, so that workers can easily slide when walking on the ground, and certain potential safety hazards exist. Therefore, this application proposes an efficient house building construction dust collector and solves such problem.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a high-efficiency dust removal device for building construction.
In order to achieve the purpose, the invention adopts the following technical scheme:
an efficient building construction dust collector includes:
the air inlet cover is fixedly connected to the left end face of the fixing frame, the baffle is fixedly connected to the right end face of the fixing frame, the cleaning liquid tank is fixedly connected to the upper end face of the fixing frame, the filter tank is fixedly connected to the lower end face of the fixing frame, and the return cylinder is arranged on the right side of the baffle;
the dust removal mechanism is arranged in the inner cavity of the air inlet cover and is used for sucking and settling dust in the air;
the backflow mechanism is arranged in the inner cavity of the backflow barrel and used for filtering and fully using the dusted sewage;
and the inner cavity of the cleaning liquid tank is provided with a liquid injection mechanism.
Preferably, dust removal mechanism includes driving motor, the fan of breathing in, transmission post, triangle ring, slider and dust removal shower nozzle, driving motor passes through the frame to be fixed at the inner wall of inlet hood, driving motor's output shaft end fixedly connected with the fan of breathing in, the fan right-hand member face middle part fixedly connected with transmission post of breathing in, transmission post lateral wall left side fixedly connected with triangle ring, triangle ring inner chamber is provided with the slide, the slider slides at the slide inner chamber, fixedly connected with dust removal shower nozzle on the triangle ring.
Preferably, the inner chamber bottom surface fixedly connected with reset spring of slide, reset spring's one end and slider fixed connection, be provided with the passageway on the slider, slide and transmission post intercommunication department are provided with the one-way valve of export to the slide direction.
Preferably, the left side and the right side of the outer side wall of the fixing frame are fixedly connected with air outlet pipes, the air outlet pipes are communicated with the fixing frame, the inner side wall of the baffle is fixedly connected with an inclined block, the inner side wall of the baffle is provided with a guide groove, and the filter groove is communicated with the fixing frame.
Preferably, the backward flow mechanism includes transfer line, first bevel gear, second bevel gear, rotation post, auger blade, communicating pipe and back flow, the right-hand member face fixedly connected with transfer line of transfer line, the first bevel gear of transfer line right-hand member face fixedly connected with, the meshing is connected with the second bevel gear below the first bevel gear, the backward flow section of thick bamboo inner chamber rotates and is connected with the rotation post, both sides fixedly connected with auger blade about the rotation post lateral wall, the filter tank passes through communicating pipe and backward flow section of thick bamboo fixed connection, the communicating pipe inner chamber is provided with the filter.
Preferably, the middle part of the outer side wall of the rotating column is fixedly connected with a second bevel gear, the transmission rod is in through connection with the baffle plate, and the upper part of the outer side wall of the reflux cylinder is fixedly connected with the cleaning liquid tank through a reflux pipe.
Preferably, the liquid injection mechanism comprises a liquid injection pipe and a connecting ring, the bottom of the inner cavity of the cleaning liquid tank is fixedly connected with the liquid injection pipe, and the lower end face of the liquid injection pipe is fixedly connected with the connecting ring.
Preferably, transmission post lateral wall right side is rotated and is connected with the go-between, transmission post lateral wall right side is provided with a plurality of hole, annotate the liquid pipe and fixed frame through connection, the go-between passes through hole and transmission post intercommunication.
Compared with the prior art, the invention has the beneficial effects that:
1. carry whole device to house building construction site after the user, make the suction fan take place to rotate through starting driving motor, the negative pressure that the suction fan rotated the production can adsorb dirty gas, and blow in fixed frame with it, also will drive the transmission post when the suction fan rotates and make the triangle ring rotate, cooperation through dust removal shower nozzle etc., can make the washing liquid in the slide spout from dust removal shower nozzle, realized adsorbing the function of dust fall to the dust in the dirty gas, setting through backflow mechanism, from dust removal shower nozzle department spun washing liquid can flow back to in the washing cistern, make whole device realize carrying out reuse's function to the washing liquid, the use cost of whole device has been reduced, the practicality of whole device has been improved.
2. After the washing liquid in the slide is constantly sprayed from the dust removal spray head, the washing liquid in the washing liquid tank can be filled into the connecting ring from the liquid injection pipe by self gravity, the washing liquid in the connecting ring flows into the transmission column through the plurality of holes, under the action of the washing liquid self water pressure, the washing liquid in the inner cavity of the transmission column can be continuously input into the slide through the one-way valve arranged at the communication position of the slide and the transmission column, the supplement of the washing liquid in the slide is realized, the whole device realizes that the washing liquid is continuously circulated, the repeated utilization of the washing liquid is realized, the dust falling quality of the whole device is ensured, and the practicability of the whole device is further improved.
Drawings
FIG. 1 is a schematic left-view overall structure diagram of a high-efficiency dust removing device for building construction according to the present invention;
FIG. 2 is a schematic left-view partial structure diagram of a high-efficiency dust removing device for building construction according to the present invention;
FIG. 3 is a schematic sectional view of an elevation view of a high-efficiency dust removing apparatus for building construction according to the present invention;
FIG. 4 is a schematic view of a connection structure at a baffle of the high-efficiency dust removing device for building construction provided by the invention;
FIG. 5 is a schematic cross-sectional view of a driving column of the high-efficiency dust removing device for building construction according to the present invention;
FIG. 6 is a schematic view of the inside cross-sectional structure of a triangular ring of the high-efficiency dust removing device for building construction provided by the invention;
FIG. 7 is a schematic structural diagram of a high-efficiency dust removing device for building construction according to the present invention when the channel is communicated with the dust removing nozzle;
fig. 8 is a schematic structural diagram of the high-efficiency house building construction dust removing device provided by the invention when the channel is disconnected from the dust removing nozzle.
In the figure: 1. a fixing frame; 11. an air outlet pipe; 2. an air intake hood; 3. a baffle plate; 31. a tapered block; 32. a diversion trench; 4. a cleaning liquid tank; 5. a filter tank; 6. a reflux drum; 7. a dust removal mechanism; 71. a drive motor; 72. an air suction fan; 73. a drive post; 74. a triangular ring; 741. a slideway; 742. a return spring; 75. a slider; 751. a channel; 76. a dust removal spray head; 8. a reflux mechanism; 81. a transmission rod; 82. a first bevel gear; 83. a second bevel gear; 84. rotating the column; 85. a screw blade; 86. a communicating pipe; 861. a filter plate; 87. a return pipe; 9. a liquid injection mechanism; 91. a liquid injection pipe; 92. and (7) connecting rings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 8, an efficient dust removing apparatus for building construction includes:
the cleaning device comprises a fixed frame 1, wherein an air inlet cover 2 is fixedly connected to the left end face of the fixed frame 1, a baffle 3 is fixedly connected to the right end face of the fixed frame 1, a cleaning liquid tank 4 is fixedly connected to the upper end face of the fixed frame 1, a filter tank 5 is fixedly connected to the lower end face of the fixed frame 1, and a backflow cylinder 6 is arranged on the right side of the baffle 3;
the dust removal mechanism 7 is arranged in the inner cavity of the air inlet cover 2, and the dust removal mechanism 7 is used for sucking and settling dust in the air;
the backflow mechanism 8 is arranged in the inner cavity of the backflow barrel 6, and the backflow mechanism 8 is used for filtering and fully using the dusted sewage;
the liquid injection mechanism 9 is arranged in the inner cavity of the cleaning liquid tank 4.
Referring to fig. 1-6, wherein the dust removing mechanism 7 includes a driving motor 71, an air suction fan 72, a transmission column 73, a triangular ring 74, a sliding block 75 and a dust removing nozzle 76, the driving motor 71 is fixed on the inner wall of the air inlet hood 2 through a frame, the output shaft end of the driving motor 71 is fixedly connected with the air suction fan 72, the middle part of the right end face of the air suction fan 72 is fixedly connected with the transmission column 73, the left side of the outer side wall of the transmission column 73 is fixedly connected with the triangular ring 74, a slide 741 is arranged in the inner cavity of the triangular ring 74, the sliding block 75 slides in the inner cavity of the slide 741, the dust removing nozzle 76 is fixedly connected to the triangular ring 74, a return spring 742 is fixedly connected to the bottom surface of the inner cavity of the slide 741, one end of the return spring 742 is fixedly connected with the sliding block 75, a channel 751 is arranged on the sliding block 75, the slide 741 is communicated with the transmission column 73, a one-way valve with the communication position of the slide 741 and the transmission column 73 is arranged in the direction of the slide 741, the left side and the right side of the outer side wall of the fixed frame 1 are fixedly connected with air outlet pipes 11, the air outlet pipes 11 are communicated with the fixed frame 1, the inner side wall of the baffle 3 is fixedly connected with an inclined block 31, the inner side wall of the baffle 3 is provided with a diversion trench 32, and the filter trench 5 is communicated with the fixed frame 1;
through the arrangement of the structure, after a user carries the whole device to a house building construction site, the suction fan 72 is rotated by starting the driving motor 71, negative pressure generated by rotation of the suction fan 72 can adsorb dust-containing gas and blow the dust-containing gas into the fixed frame 1, the transmission column 73 is driven by rotation of the suction fan 72 to rotate the triangular ring 74, and through cooperation of the dust removal spray head 76 and the like, cleaning liquid in the slide rail 741 can be sprayed out from the dust removal spray head 76, so that the dust adsorption and dust removal function on dust in the dust-containing gas is realized.
Referring to fig. 3, wherein, the backflow mechanism 8 includes a transmission rod 81, a first bevel gear 82, a second bevel gear 83, a rotation column 84, an auger blade 85, a communicating pipe 86 and a backflow pipe 87, the right end face of the transmission column 73 is fixedly connected with the transmission rod 81, the right end face of the transmission rod 81 is fixedly connected with the first bevel gear 82, the second bevel gear 83 is engaged and connected below the first bevel gear 82, the rotation column 84 is rotatably connected in the inner cavity of the backflow cylinder 6, the auger blade 85 is fixedly connected on the upper and lower sides of the outer side wall of the rotation column 84, the filter tank 5 is fixedly connected with the backflow cylinder 6 through the communicating pipe 86, a filter plate 861 is arranged in the inner cavity of the communicating pipe 86, the second bevel gear 83 is fixedly connected in the middle of the outer side wall of the rotation column 84, the transmission rod 81 is connected with the baffle 3 in a penetrating manner, and the upper part of the outer side wall of the backflow cylinder 6 is fixedly connected with the cleaning liquid tank 4 through the backflow pipe 87;
through the setting of above-mentioned structure, the washing liquid that contains the dust will be carried and hit and beat on baffle 3, setting through oblique piece 31, the washing liquid that contains the dust will assemble in guiding gutter 32 final inflow filter tank 5, setting through filter 861, can filter the washing liquid that contains the dust, make in the clear washing liquid inflow backward flow section of thick bamboo 6, cooperation through auger blade 85 etc. this moment, the washing liquid will constantly move to backward flow section of thick bamboo 6 upper portion and finally flow into through back flow 87 and wash in the cistern 4, make whole device realize carrying out reuse's function to the washing liquid, the use cost of whole device has been reduced, the practicality of whole device has been improved.
Referring to fig. 3 and 5, the liquid injection mechanism 9 includes a liquid injection pipe 91 and a connection ring 92, the bottom of the inner cavity of the cleaning liquid tank 4 is fixedly connected with the liquid injection pipe 91, the lower end surface of the liquid injection pipe 91 is fixedly connected with the connection ring 92, the right side of the outer side wall of the transmission column 73 is rotatably connected with the connection ring 92, the right side of the outer side wall of the transmission column 73 is provided with a plurality of holes, the liquid injection pipe 91 is connected with the fixed frame 1 in a penetrating way, and the connection ring 92 is communicated with the transmission column 73 through the holes;
through the arrangement of the structure, after the cleaning liquid in the slide 741 is continuously sprayed out from the dust removal spray head 76, the cleaning liquid in the cleaning liquid tank 4 can flow into the connecting ring 92 from the liquid injection pipe 91 by self gravity, the cleaning liquid in the connecting ring 92 flows into the transmission column 73 through the plurality of holes, under the action of the self water pressure of the cleaning liquid, the cleaning liquid in the inner cavity of the transmission column 73 is continuously input into the slide 741 through the one-way valve arranged at the communication position of the slide 741 and the transmission column 73, so that the cleaning liquid in the slide 741 is supplemented, the cleaning liquid is continuously circulated by the whole device, the repeated utilization of the cleaning liquid is realized, the dust falling quality of the whole device is ensured, and the practicability of the whole device is further improved.
In the invention, after a user carries the whole device to a building construction site, the suction fan 72 is rotated by starting the driving motor 71, negative pressure generated by the rotation of the suction fan 72 can adsorb dust-containing gas and blow the dust-containing gas into the fixed frame 1, the transmission column 73 drives the triangular ring 74 to rotate due to the fixed connection of the suction fan 72 and the transmission column 73, when the triangular ring 74 rotates (as shown in figures 7 and 8), the slide block 75 can move to the outer side of the slide rail 741 under the action of the centrifugal force of the rotation, the return spring 742 is in a stretching state, the channel 751 in the slide block 75 can be communicated with the dust removing nozzle 76, so that the cleaning liquid in the slide rail 741 is sprayed from the dust removing nozzle 76, the dust removing function of dust in the dust-containing gas is realized, at the moment, fresh air is discharged from the air outlet pipe 11, the cleaning liquid containing dust is conveyed and hit on the baffle 3, through the arrangement of the inclined block 31, the cleaning liquid containing dust will gather in the diversion trench 32 and finally flow into the filter tank 5, after the cleaning liquid containing dust flows into the inner cavity of the filter tank 5, the cleaning liquid containing dust will flow into the backflow cylinder 6 through the communicating pipe 86, through the arrangement of the filter plate 861, the cleaning liquid containing dust can be filtered, so that the clean cleaning liquid flows into the backflow cylinder 6, at this time, because the transmission column 73 is in a rotating state, the transmission rod 81 will drive the first bevel gear 82 to rotate, the rotation column 84 can drive the auger blade 85 to rotate in cooperation with the second bevel gear 83, so that the clean cleaning liquid continuously moves upwards and finally flows into the cleaning liquid tank 4 through the backflow pipe 87, after the cleaning liquid in the slideway 741 is continuously sprayed from the dust removal nozzle 76, the cleaning liquid in the cleaning liquid tank 4 can flow into the connecting ring 92 from the liquid injection pipe 91 under the self gravity, be provided with a plurality of hole through transmission post 73 lateral wall right side, thereby when transmission post 73 rotated, the washing liquid in the go-between 92 will flow into transmission post 73 through a plurality of hole holes in, under washing liquid self water pressure effect, the washing liquid of transmission post 73 inner chamber will constantly be inputed to slide 741 through the one-way valve that slide 741 and transmission post 73 intercommunication department set up in, realized the replenishment to the washing liquid in the slide 741, thereby whole device has realized constantly circulating the washing liquid, realized its reuse's function, the quality of whole device dust fall has been guaranteed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. The utility model provides an efficient housing construction dust collector which characterized in that includes:
the cleaning device comprises a fixed frame (1), wherein an air inlet cover (2) is fixedly connected to the left end face of the fixed frame (1), a baffle (3) is fixedly connected to the right end face of the fixed frame (1), a cleaning liquid tank (4) is fixedly connected to the upper end face of the fixed frame (1), a filter tank (5) is fixedly connected to the lower end face of the fixed frame (1), and a backflow barrel (6) is arranged on the right side of the baffle (3);
the dust removal mechanism (7) is arranged in the inner cavity of the air inlet cover (2), and the dust removal mechanism (7) is used for sucking and falling dust in the air;
the inner cavity of the backflow barrel (6) is provided with the backflow mechanism (8), and the backflow mechanism (8) is used for filtering and fully using the dusted sewage;
and the liquid injection mechanism (9) is arranged in the inner cavity of the cleaning liquid tank (4).
2. The efficient dust removing device for the house building construction according to claim 1, wherein the dust removing mechanism (7) comprises a driving motor (71), a suction fan (72), a transmission column (73), a triangular ring (74), a sliding block (75) and a dust removing nozzle (76), the driving motor (71) is fixed on the inner wall of the air inlet hood (2) through a rack, the suction fan (72) is fixedly connected to an output shaft end of the driving motor (71), the transmission column (73) is fixedly connected to the middle of the right end face of the suction fan (72), the triangular ring (74) is fixedly connected to the left side of the outer side wall of the transmission column (73), a slide rail (741) is arranged in an inner cavity of the triangular ring (74), the sliding block (75) slides in the inner cavity of the slide rail (741), and the dust removing nozzle (76) is fixedly connected to the triangular ring (74).
3. The efficient dust removing device for the house building construction according to claim 2, wherein a return spring (742) is fixedly connected to the bottom surface of the inner cavity of the slide way (741), one end of the return spring (742) is fixedly connected with the slide block (75), a channel (751) is arranged on the slide block (75), the slide way (741) is communicated with the transmission column (73), and a one-way valve with an outlet facing the direction of the slide way (741) is arranged at the position where the slide way (741) is communicated with the transmission column (73).
4. The efficient dedusting device for the house building construction according to claim 1, wherein the left side and the right side of the outer side wall of the fixing frame (1) are fixedly connected with air outlet pipes (11), the air outlet pipes (11) are communicated with the fixing frame (1), the inner side wall of the baffle (3) is fixedly connected with an inclined block (31), the inner side wall of the baffle (3) is provided with a diversion trench (32), and the filter tank (5) is communicated with the fixing frame (1).
5. The efficient dust removing device for building construction according to claim 1, the backflow mechanism (8) comprises a transmission rod (81), a first bevel gear (82), a second bevel gear (83), a rotating column (84), auger blades (85), a communicating pipe (86) and a backflow pipe (87), a transmission rod (81) is fixedly connected to the right end face of the transmission column (73), a first bevel gear (82) is fixedly connected to the right end face of the transmission rod (81), a second bevel gear (83) is engaged and connected below the first bevel gear (82), the inner cavity of the reflux cylinder (6) is rotationally connected with a rotating column (84), the upper side and the lower side of the outer side wall of the rotating column (84) are fixedly connected with auger blades (85), the filter tank (5) is fixedly connected with the reflux drum (6) through a communicating pipe (86), and a filter plate (861) is arranged in the inner cavity of the communicating pipe (86).
6. The efficient dust removing device for the house building construction as claimed in claim 5, wherein a second bevel gear (83) is fixedly connected to the middle of the outer side wall of the rotating column (84), the transmission rod (81) is connected with the baffle plate (3) in a penetrating manner, and the upper portion of the outer side wall of the backflow cylinder (6) is fixedly connected with the cleaning liquid tank (4) through a backflow pipe (87).
7. The efficient dust removing device for house building construction as claimed in claim 2, wherein the liquid injection mechanism (9) comprises a liquid injection pipe (91) and a connecting ring (92), the liquid injection pipe (91) is fixedly connected to the bottom of the inner cavity of the cleaning liquid tank (4), and the connecting ring (92) is fixedly connected to the lower end face of the liquid injection pipe (91).
8. The efficient dedusting device for the house building construction as recited in claim 7, wherein the right side of the outer side wall of the transmission column (73) is rotatably connected with a connection ring (92), the right side of the outer side wall of the transmission column (73) is provided with a plurality of holes, the liquid injection pipe (91) is in through connection with the fixed frame (1), and the connection ring (92) is communicated with the transmission column (73) through the holes.
CN202210722511.9A 2022-06-20 2022-06-20 Efficient house building construction dust collector Pending CN115055018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210722511.9A CN115055018A (en) 2022-06-20 2022-06-20 Efficient house building construction dust collector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210722511.9A CN115055018A (en) 2022-06-20 2022-06-20 Efficient house building construction dust collector

Publications (1)

Publication Number Publication Date
CN115055018A true CN115055018A (en) 2022-09-16

Family

ID=83201685

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210722511.9A Pending CN115055018A (en) 2022-06-20 2022-06-20 Efficient house building construction dust collector

Country Status (1)

Country Link
CN (1) CN115055018A (en)

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