CN221618961U - Dust fall device for maintenance and construction of constructional engineering - Google Patents
Dust fall device for maintenance and construction of constructional engineering Download PDFInfo
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- CN221618961U CN221618961U CN202323636455.6U CN202323636455U CN221618961U CN 221618961 U CN221618961 U CN 221618961U CN 202323636455 U CN202323636455 U CN 202323636455U CN 221618961 U CN221618961 U CN 221618961U
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- 239000000428 dust Substances 0.000 title claims abstract description 83
- 238000010276 construction Methods 0.000 title claims abstract description 48
- 238000012423 maintenance Methods 0.000 title claims abstract description 24
- 239000007921 spray Substances 0.000 claims abstract description 18
- 238000005507 spraying Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 23
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 230000001629 suppression Effects 0.000 claims 6
- 230000000694 effects Effects 0.000 abstract description 21
- 238000013461 design Methods 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 abstract description 4
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000003595 mist Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Working Measures On Existing Buildindgs (AREA)
Abstract
The utility model belongs to the technical field of building construction devices, and discloses a dust fall device for maintenance and construction of building engineering, which comprises a bearing seat and a dust removal spray cylinder; a fixed seat is arranged at the top of the bearing seat, a bearing bracket is arranged at the top of the fixed seat, and a lifting frame of a lifting assembly is movably connected to the surface of the bearing bracket; the top of the lifting frame is provided with a mounting frame, the top of the mounting frame is rotatably provided with a positioning turntable, and the dust removal spraying cylinder is arranged at the top of the positioning turntable; the bottom of the positioning turntable is connected with the top of the inner cavity of the mounting frame through a reset spring; the bottom of the inner cavity of the mounting frame is provided with a driving motor, and the output end of the driving motor is connected with a swinging component for controlling the movement of the positioning turntable. According to the utility model, through the structural improvement design in multiple aspects, the height of the dust falling device can be flexibly adjusted, the dust falling effect of the construction environment is improved, the overhaul and maintenance are convenient, and the engineering construction efficiency can be improved.
Description
Technical Field
The utility model relates to the technical field of building construction devices, in particular to a dust fall device for maintenance and construction of a building engineering.
Background
The dust fall is air particles naturally falling on the ground, the particle size of the air particles is more than ten micrometers, the unit of measurement index is the amount of ground surface sedimentation substances in a unit area within a certain time, and the monitoring of the natural sedimentation amount of the atmospheric dust is to develop an earlier routine monitoring project of atmospheric pollutants, so that a large amount of dust and ash can be generated when the construction is carried out on the existing construction site, and therefore, certain measures are needed to reduce the dust. The existing dust settling equipment which needs to be installed on the wall body is small in water mist coverage area, dust which is distributed in a large area in the air cannot be treated, the dust settling effect is poor, the cost of work is increased, meanwhile, the wall body is inconvenient to climb, the dust settling device is overhauled and maintained, and the workload is increased.
As in the prior art: the utility model discloses a building engineering uses site construction dust device that chinese patent document of bulletin number CN213773171U discloses, including the tower, high-pressure water pump, climbing rack, guardrail and squirt, two supports of bottom inner wall fixed connection of tower, the top fixedly connected with mounting panel of support, the top fixedly connected with high-pressure water pump of mounting panel, be provided with the delivery port on the high-pressure water pump, the delivery port passes through fixed valve fixedly connected with high-pressure water pipe, the top port department fixedly connected with high-pressure valve of high-pressure water pipe, the other end fixedly connected with squirt of high-pressure valve, the top fixedly connected with rifle head of squirt, the top connection of rifle head is provided with the nozzle, the outer wall fixedly connected with movable tube of squirt, the movable tube activity has cup jointed the driving lever, the fixed welding in top of driving lever has the plectrum, the position of plectrum is located the place ahead of nozzle.
However, the technical scheme provided in the above patent document also has the problems that the dust fall height cannot be flexibly adjusted in the actual use process, the dust fall effect is affected, and meanwhile, the problems of troublesome overhaul and maintenance in the use process exist.
Disclosure of utility model
The utility model aims to provide a dust device for maintenance construction of constructional engineering, which can flexibly adjust the height of the dust device after being installed through various structural improvement designs, carry out dust-falling operation according to the required height, ensure the dust-falling effect of construction environment, simultaneously facilitate overhauling and maintaining the dust device, improve the efficiency of engineering construction and solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
A dust fall device for maintenance and construction of constructional engineering comprises a bearing seat and a dust removal spray cylinder; a fixed seat is arranged at the top of the bearing seat, a bearing bracket is arranged at the top of the fixed seat, and a lifting frame of a lifting assembly is movably connected to the surface of the bearing bracket; the top of the lifting frame is provided with a mounting frame, the top of the mounting frame is rotatably provided with a positioning turntable, and the dust removal spray cylinder is arranged at the top of the positioning turntable; the bottom of the positioning turntable is connected with the top of the inner cavity of the mounting frame through a reset spring; the bottom of the inner cavity of the mounting frame is provided with a driving motor, and the output end of the driving motor is connected with a swinging assembly for controlling the movement of the positioning turntable.
The swing assembly includes: the transmission disc is arranged at the output end of the driving motor; the positioning frame is arranged at the top of the transmission disc, and the toggle rod is movably arranged at the top of the positioning frame; the bottom swing joint of stirring rod has the connecting rod, the bottom swing joint of connecting rod has the movable block, the locating rack is connected with spacing frame in one side at the top of driving disk.
The lifting assembly includes: the limiting block is connected to the outer surface of the bearing bracket;
The transmission screw rod is rotatably arranged in the bearing bracket, and the connecting frame is in threaded connection with the surface of the transmission screw rod;
the bottom of fixing base is installed elevator motor, elevator motor's output connects the bottom of transmission lead screw, the inner chamber top of crane is connected on the top of link.
Compared with the prior art, the utility model has the beneficial effects that:
1. the dust settling device for the maintenance construction of the building engineering provided by the utility model has the advantages that through the structural improvement design in many aspects, the structure is more compact, parts are fewer, the height of the dust settling device can be flexibly adjusted after the dust settling device is installed, and the dust settling height is adjusted according to the required height so as to ensure the dust settling effect of the construction environment; meanwhile, the dust falling device is convenient to overhaul and maintain, and the engineering construction efficiency is improved.
2. According to the utility model, through the cooperative matching design of the structures such as the bearing seat, the bearing bracket, the mounting frame, the positioning turntable, the reset spring, the lifting assembly, the swinging assembly and the like, the driving screw rod is driven to rotate by the driving lifting motor, so that the connecting frame is lifted and lowered in the bearing bracket, and the dust removal spraying cylinder is controlled to the optimal height required by operation, so that the dust removal effect is ensured.
3. In the utility model, during maintenance, the lifting frame is controlled to move downwards by matching with the limiting block outside the bearing bracket, so that the working personnel can conveniently overhaul and maintain the dust-settling device; in the working process, the driving motor is started to drive the transmission disc to rotate, the poking rod is driven to rotate through the locating frame, and the inclined rod at the bottom of the locating rotary disc is poked, so that the dust removal spraying cylinder is controlled to turn, the dust fall area is increased, and the effect of dust fall in a larger construction area is guaranteed.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a dust-settling device according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a supporting frame of a dust-settling device according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a mounting frame of a dust-settling device according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a toggle lever structure of a dust-settling device according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a positioning turntable of a dust settling device according to an embodiment of the present utility model.
In the figure: 1. a bearing seat; 2. a fixing seat; 3. a load bearing bracket; 4. a lifting frame; 5. a mounting frame; 6. a dust removal spray cylinder; 7. a lifting motor; 8. a fixing plate; 9. a transmission screw rod; 10. a limiting block; 11. a connecting frame; 12. a limiting guide groove; 13. a driving motor; 14. a drive plate; 15. a positioning frame; 16. a compression spring; 17. a limit frame; 18. a toggle rod; 19. a moving block; 20. a connecting rod; 21. positioning a turntable; 22. a diagonal rod; 23. a positioning block; 24. a return spring; 25. a high pressure water pump; 26. and a control box.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1-5, the dust settling device for maintenance and construction of constructional engineering provided by the embodiment of the utility model is mainly applied to maintenance and repair construction operations of civil middle-low buildings or structures, is convenient to transport and install, is convenient to use and maintain, has adjustable spraying height and area, and has the following main working parameters:
Voltage: 220V;
Flow rate: 18-60 l/h;
The control mode is as follows: automatic/remote control;
power: 1-3kw;
Spray distance: 2-3 meters;
Spray head type: high-pressure micro-mist spray heads/landscaping spray heads;
Motor water pump: an all-copper motor;
External dimensions: 70cm by 62cm by 150cm.
The dust fall device for the maintenance and construction of the building engineering comprises a bearing seat 1 and a dust removal spray cylinder 6; a fixed seat 2 is arranged at the top of the bearing seat 1, a bearing bracket 3 is arranged at the top of the fixed seat 2, and a lifting frame 4 of a lifting assembly is movably connected to the surface of the bearing bracket 3; the top of the lifting frame 4 is provided with a mounting frame 5, the top of the mounting frame 5 is rotatably provided with a positioning turntable 21, and the dust removal spraying cylinder 6 is arranged on the top of the positioning turntable 21; the bottom of the positioning turntable 21 is connected with the top of the inner cavity of the mounting frame 5 through a return spring 24; the bottom of the inner cavity of the mounting frame 5 is provided with a driving motor 13, and the output end of the driving motor 13 is connected with a swinging component for controlling the movement of the positioning turntable 21.
The construction engineering is maintained construction and is used dust device that this embodiment provided through bearing seat 1, bearing support 3, installing frame 5, positioning turntable 21, reset spring 24, lifting unit and swing subassembly structure's cooperation setting, can be after installing dust device, highly adjust dust device, promotes construction environment's dust effect, conveniently overhauls dust device simultaneously and maintains, improves the efficiency of building maintenance construction.
The swing assembly includes: a driving disc 14 arranged at the output end of the driving motor 13; the positioning frame 15 is arranged at the top of the transmission disc 14, and the toggle rod 18 is movably arranged at the top of the positioning frame 15; the bottom swing joint of stirring rod 18 has connecting rod 20, the bottom swing joint of connecting rod 20 has movable block 19, locating rack 15 is located the top one side of driving disk 14 and is connected with spacing frame 17. The movable block 19 is slidably mounted on the inner wall of the limit frame 17, a compression spring 16 is arranged in the limit frame 17, and one end of the compression spring 16 is connected with one side of the movable block 19.
The driving motor 13 is a driving component for rotating the poking rod 18, the driving disc 14 is a structure for assembling the poking rod 18, the poking rod 18 is a connecting structure for poking the inclined rod 22, the positioning frame 15 is a structure for assembling the poking rod 18, the connecting rod 20 is a connecting piece for connecting the poking rod 18 with the moving block 19, the compression spring 16 acts on the moving block 19, the reset effect of the poking rod 18 is achieved, and the purpose of adjusting the position of the poking rod 18 is achieved.
The lifting assembly includes: a limiting block 10 connected to the outer surface of the bearing bracket 3; a transmission screw rod 9 rotatably installed in the bearing bracket 3 and a connecting frame 11 in threaded connection with the surface of the transmission screw rod 9; the bottom of fixing base 2 installs elevator motor 7, elevator motor 7's output connects the bottom of transmission lead screw 9, the inner chamber top of the top crane 4 of link 11. The top of bearing support 3 is connected with fixed plate 8, the top of transmission lead screw 9 rotates and connects fixed plate 8 bottom, spacing guide slot 12 has been seted up to the inner wall of crane 4, the inner wall of spacing guide slot 12 of stopper 10 sliding connection.
The bearing support 3 is a structure for assembling and guiding the lifting frame 4, the transmission screw rod 9 is a structure for driving the lifting frame 4 to achieve the lifting purpose by matching with the lifting motor 7, so that the height of the dust removal spraying cylinder 6 is conveniently adjusted, the dust removal effect is ensured, maintenance and overhaul are conveniently carried out, the fixed plate 8 is a component for positioning the transmission screw rod 9, the stability of the structure is ensured, the limiting block 10 is a component for matching with the limiting guide groove 12 to lift the lifting frame 4, the limiting guide effect is achieved, and the connecting frame 11 is a component for connecting the lifting frame 4 with the transmission screw rod 9.
The top of bearing seat 1 is installed high-pressure water pump 25, the output of high-pressure water pump 25 passes through pipe connection dust removal spraying section of thick bamboo 6, the input of high-pressure water pump 25 passes through the external water source water tank of pipeline, one side of high-pressure water pump 25 sets up control box 26. The bottom of positioning carousel 21 is provided with down tube 22, the bottom of positioning carousel 21 is passed through locating piece 23 to reset spring 24's one end, reset spring 24's the other end passes through locating piece 23 and connects the inner chamber top of installing frame 5.
In addition, the high-pressure water pump 25 is used for conveying water required for dust fall to the dust removal spray cylinder 6, and the pipeline is preferably a hose, so that the use effect is ensured in the lifting process; the dust removal spraying cylinder 6 is equipment for carrying out dust fall on a construction site, the positioning turntable 21 is a positioning structure for rotating the dust removal spraying cylinder 6 at the top of the mounting frame 5, the inclined rod 22 is a reset structure for reciprocating rotation of the dust removal spraying cylinder 6, the positioning block 23 is a component for assembling the reset spring 24, wherein the control box 26 is electrically connected with the high-pressure water pump 25, the lifting motor 7 and the electric component of the driving motor 13, and is externally connected with a power supply, and a movable power supply is optionally assembled for use in an emergency state.
In the embodiment, the lifting motor 7 is driven to drive the transmission screw rod 9 to rotate, so that the connecting frame 11 lifts and lowers the inside of the bearing bracket 3, the height of the dedusting spraying cylinder 6 can be controlled, and the dust settling effect is ensured; during maintenance, the lifting frame 4 can be controlled to move downwards in cooperation with the limiting block 10 outside the bearing bracket 3, so that a worker can conveniently overhaul and maintain the dust-settling device; in the working process, the driving motor 13 is started to drive the transmission disc 14 to rotate, so that the positioning frame 15 drives the poking rod 18 to rotate, and the inclined rod 22 at the bottom of the positioning turntable 21 is poked, so that the dedusting spray drum 6 is controlled to steer, and the dust fall area is increased; after the driving disc 14 rotates to a certain position, the toggle rod 18 is pressed by the inclined rod 22 to be retracted downwards, so that the toggle rod 18 is separated from the inclined rod 22 to normally move, and the compression spring 16 is matched, so that the toggle rod 18 is restored to the original position, the inclined rod 22 is convenient to toggle next time, and the positioning turntable 21 is restored to the original position under the action of the reset spring 24 under the condition that the toggle rod 18 is separated from the inclined rod 22, so that the reciprocating movement is achieved, and the dust fall effect is improved.
The utility model has the advantages that a prototype is manufactured and confidentiality test is carried out, compared with the technical effects of the existing similar products, the utility model has the following advantages: the height and the range of the dust fall spray can be flexibly adjusted so as to meet the requirements of different construction operations; allowing a user to automatically adjust the height and angle of spraying according to actual engineering requirements; realizing finer dust fall effect; the method is better suitable for complex construction environments, is particularly obvious in internal construction of middle-low buildings or construction of scenes in which the spraying range needs to be accurately controlled, and can better meet engineering requirements in dust settling effect.
The dust settling device prototype for the maintenance construction of the building engineering has the advantages that the spray head in the dust removing spray cylinder is easy to replace, convenient to maintain and adjustable in spraying effect, and the voltage requirement of the dust settling device is 220V so as to adapt to common voltage standards; the flow range is wide, and the flow can be adjusted from 18 liters/hour to 60 liters/hour according to actual requirements so as to realize the efficient dust settling effect; the control mode is flexible, automatic and remote control operation is supported, and the operation and monitoring of a user are facilitated; the power consumption is between 1 and 3kw, and the adjustable power meets the requirements of energy conservation and environmental protection; the spraying distance can reach 2-3 meters, and the dust settling device is suitable for the dust settling requirement of a large area; the spray head type comprises a high-pressure micro-mist spray head and a landscaping spray head, and can be selected according to different scene requirements; the motor water pump adopts an all-copper motor, so that the stability and durability of the motor are ensured; the general size is 70 cm.times.62 cm.times.150 cm, and the installation and the movement are convenient.
According to the dust settling device for the maintenance construction of the building engineering, provided by the embodiment of the utility model, through the structural improvement design in multiple aspects, the height of the dust settling device can be flexibly adjusted according to the construction operation requirement after the dust settling device is installed, so that the dust settling effect of the construction environment is ensured, meanwhile, the dust settling device is convenient for constructors to overhaul and maintain, and the efficiency of engineering construction is improved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a construction engineering is maintained construction and is used dust device which characterized in that includes: a bearing seat (1) and a dust removal spray cylinder (6);
A fixed seat (2) is arranged at the top of the bearing seat (1), a bearing bracket (3) is arranged at the top of the fixed seat (2), and a lifting frame (4) of a lifting assembly is movably connected to the surface of the bearing bracket (3);
The top of the lifting frame (4) is provided with a mounting frame (5), the top of the mounting frame (5) is rotatably provided with a positioning rotary table (21), and the dust removal spraying cylinder (6) is arranged at the top of the positioning rotary table (21);
the bottom of the positioning turntable (21) is connected with the top of the inner cavity of the mounting frame (5) through a return spring (24); the bottom of the inner cavity of the mounting frame (5) is provided with a driving motor (13), and the output end of the driving motor (13) is connected with a swinging component for controlling the movement of the positioning turntable (21).
2. The dust suppression device for maintenance and construction of construction engineering according to claim 1, wherein: the swing assembly includes:
A transmission disc (14) arranged at the output end of the driving motor (13);
The positioning frame (15) is arranged at the top of the transmission disc (14), and the toggle rod (18) is movably arranged at the top of the positioning frame (15);
The bottom swing joint of stirring rod (18) has connecting rod (20), the bottom swing joint of connecting rod (20) has movable block (19), one side that locating rack (15) are located the top of driving disk (14) is connected with spacing frame (17).
3. The dust suppression device for maintenance and construction of construction engineering according to claim 2, wherein: the movable block (19) is slidably mounted on the inner wall of the limiting frame (17), a compression spring (16) is arranged in the limiting frame (17), and one end of the compression spring (16) is connected with one side of the movable block (19).
4. The dust suppression device for maintenance and construction of construction engineering according to claim 1, wherein: the lifting assembly includes:
a limiting block (10) connected to the outer surface of the bearing bracket (3);
a transmission screw rod (9) rotatably arranged in the bearing bracket (3), and a connecting frame (11) in threaded connection with the surface of the transmission screw rod (9);
The bottom of fixing base (2) is installed elevator motor (7), the bottom of transmission lead screw (9) is connected to the output of elevator motor (7), the inner chamber top of crane (4) is connected on the top of link (11).
5. The dust suppression device for maintenance and construction of construction engineering according to claim 4, wherein: the top of bearing support (3) is connected with fixed plate (8), the top of transmission lead screw (9) rotates and connects fixed plate (8) bottom, spacing guide slot (12) have been seted up to the inner wall of crane (4), the inner wall of spacing guide slot (12) of stopper (10) sliding connection.
6. The dust suppression device for maintenance and construction of construction engineering according to claim 1, wherein: the top of bearing seat (1) is installed high-pressure water pump (25), the output of high-pressure water pump (25) passes through pipe connection dust removal spraying section of thick bamboo (6), the input of high-pressure water pump (25) passes through the external water source water tank of pipeline, one side of high-pressure water pump (25) sets up control box (26).
7. The dust suppression device for maintenance and construction of construction engineering according to claim 1, wherein: the bottom of positioning carousel (21) is provided with down tube (22), the bottom of positioning carousel (21) is connected through locating piece (23) to one end of reset spring (24), the inner chamber top of installing frame (5) is connected through locating piece (23) to the other end of reset spring (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323636455.6U CN221618961U (en) | 2023-12-29 | 2023-12-29 | Dust fall device for maintenance and construction of constructional engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323636455.6U CN221618961U (en) | 2023-12-29 | 2023-12-29 | Dust fall device for maintenance and construction of constructional engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221618961U true CN221618961U (en) | 2024-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323636455.6U Active CN221618961U (en) | 2023-12-29 | 2023-12-29 | Dust fall device for maintenance and construction of constructional engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221618961U (en) |
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2023
- 2023-12-29 CN CN202323636455.6U patent/CN221618961U/en active Active
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