Automatic spraying and dust falling device special for aerial building machine and using method of automatic spraying and dust falling device
By designing a spreadable and closed sunshade cloth and a height-adjusted spray dust reduction component, the space occupation and blind spot processing of the spray dust reduction device of the air building machine during use is solved, and effective sunshade cooling and dust reduction effects are achieved.
Patent Information
- Application Number
- CN202510093514.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2045-01-21
AI Technical Summary
When used, the spray dust reduction device of the existing aerial building machine lacks the functions of storage and height adjustment, which causes the spray facilities to occupy construction space and easily collide with construction materials. The single angle adjustment cannot completely deal with blind spot dust, and it is difficult to contact the spray water droplets with air dust.
A special automatic dust-spraying device for air building machines is designed, including a sunshade cloth that can be expanded and closed, and a dust-spraying component. Through the structure of the U-shaped bracket and the articulated seat, the height adjustment and storage of the dust-spraying component is realized to ensure that the spray water effectively reduces cooling and dust-spraying under sunshade conditions.
The device can effectively shade and cool down, ensure that the spray water is not exposed to direct sunlight, prevent the water temperature from being too high, and improve the dust reduction effect; at the same time, through the height adjustment and storage functions, the spraying facilities avoid occupying construction space and improve construction efficiency and safety.
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Figure CN119771090A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of spraying and dust reduction, and in particular to an automatic spraying and dust reduction device specially used for an aerial building construction machine.
[0002] The present invention also relates to a method for using the automatic spraying dust reduction device specially used for the aerial building construction machine. Background Art
[0003] The aerial building machine is a large-scale combined mechanical equipment platform with intelligent control. The building machine can replace the hanging basket and climbing frame, making the quality of exterior wall construction more stable and safer. At the same time, the large curtain and sprinkler system can create a sunshade, rain shelter and dust reduction construction environment for workers, so that the construction quality, safety, progress and occupational health of personnel are guaranteed.
[0004] After searching, the Chinese utility model patent with publication number CN215352703U discloses a spray dust reduction device based on a self-elevating building platform. During use, under the action of matching teeth and rotating teeth, the angle of the spray head can be adjusted within a certain range, so as to make its working range larger. At the same time, under the cooperation of the guide groove and the guide block, the position of the spray head of the device can be adjusted during use, so that the spray device can spray different positions.
[0005] When the spray dust reduction device of the above-mentioned building construction machine is in use, the angle of the nozzle is adjusted within a certain range to achieve a wide spray range. However, in actual operation, there are certain defects, such as: the spray dust reduction components lack storage and height adjustment functions. Due to the wide space of the building construction machine, in order to improve its spray dust reduction performance, it is necessary to set a certain number of spray nozzles and pipes in the building construction machine area. The spray facility will occupy the construction space and easily collide with the construction materials transported in the steel frame channel. Moreover, through the adjustment of a single angle, the dust in some blind areas cannot be completely processed, and there are still certain defects; and when the position of the spray end is too high, with the airflow at high altitude, the water droplets of the spray cannot come into contact with the dust in the air. When the position of the spray end is too low, it is easy to affect the normal construction of its staff. Summary of the invention
[0006] The purpose of the present invention is to provide an automatic spraying and dust reduction device specially designed for aerial building construction machines, which can provide shade and reduce temperature, and can be unfolded and folded. After unfolding, the spraying and dust reduction component can be lowered to spray and reduce dust. The spraying water is sprayed under the condition of shading, which can avoid direct sunlight and prevent the spraying water temperature from being too high, which is not conducive to cooling. After folding, the spraying and dust reduction component can be raised to avoid hindering the transportation of construction materials.
[0007] Another object of the present invention is to provide a method for using the automatic spraying dust reduction device dedicated to the aerial building construction machine.
[0008] Regarding the technical topic of the spray dust suppression device for aerial building machines, it includes: There are two cross beams, and the inner side surfaces of the cross beams are provided with T-shaped sliding grooves extending along the axial direction thereof; Sunshade cloths are arranged at intervals above the beams; A U-shaped bracket is arranged between two beams, and a plurality of U-shaped brackets are arranged at intervals along the beams, and the brackets have two vertical support plates and a top horizontal plate, and a T-shaped sliding block is arranged on the outer side of the vertical support plate to slide and fit with the T-shaped sliding groove; A connecting frame, which is installed at intervals on the top horizontal plate of the U-shaped bracket, and the sunshade cloth is installed on the top of the connecting frame; The spray dust suppression assembly 7 is arranged below the sunshade cloth, and includes a hinge seat arranged between adjacent U-shaped brackets, grooves are arranged on both sides of the hinge seat, pins are installed in the grooves, the upper end of the connecting rod is passed through the pins, and a notch is arranged on the side of the top cross bar of the U-shaped bracket, a pin is also installed in the notch, and the lower end of the connecting rod is passed through, the hinge seat is fixedly sleeved with a spray pipe, and the upper end of the spray pipe is connected to a horizontal water injection pipe; a plurality of sections of corrugated pipes are arranged at intervals on the water injection pipe.
[0009] With such a structure, the operator controls the deployment and folding of the spray dust reduction assembly 7 by moving the U-shaped bracket, and the sunshade cloth can be deployed and folded together for easy storage; When unfolded, the spray dust suppression assembly descends, releasing the storage state, indicating the operator to control the water pump to supply water from the water tank, which is also convenient for lowering the spray height; when folded, the operator controls the water pump to stop the water supply, and after the remaining water has drained away, the U-shaped bracket is operated to move to one side to retract the spray dust suppression assembly. After the spray dust suppression assembly is folded and raised, it indicates to the construction personnel that the spraying process is over.
[0010] As a further improvement of the special spray dust reduction device for aerial building construction machines, an X-shaped frame is hinged between the first and last U-shaped brackets. The X-shaped frame uses a plurality of cross-stacked diagonal rods, which are hinged and fixed at both ends and in the middle.
[0011] With such a structure, the X-shaped frame can control the opening and closing distance between the first and last U-shaped brackets to control the overall opening and closing size, preventing the connecting rod from tilting downward after being flattened, causing the water injection pipe to collide with the U-shaped bracket and easily damage the water injection pipe.
[0012] As a further improvement of the special spray dust reduction device for aerial building construction machines, a propulsion assembly is installed on the vertical support plate of the outermost U-shaped bracket, and the propulsion assembly includes a toothed plate fixed on the top of the two cross beams; a driving gear is meshed on the toothed plate, and the toothed plate is coaxially fixed with the transmission shaft, and the transmission shaft slides through the vertical support plate of the U-shaped bracket; a motor is installed on the bottom surface of the top cross bar of the U-shaped bracket, and the output shaft of the motor is connected to the transmission shaft through the transmission assembly.
[0013] With such a structure and the use of an electric method, manual operation is facilitated and the entire operation process is more labor-saving.
[0014] As a further improvement of the special spray dust reduction device for aerial building construction machines, the transmission assembly is a sprocket transmission assembly, a belt transmission assembly, or a gear transmission assembly.
[0015] As a further improvement of the special spray dust reduction device for aerial building construction machines, a sealing ring is fixed inside the spray pipe, an extension pipe is sleeved in the sealing ring, and the two sides of the extension pipe are connected to a spray nozzle. The lower end of the spray pipe is threadedly connected with a bolt, and the bolt presses against the extension pipe.
[0016] With such a structure, the extension pipe can be fastened.
[0017] As a further improvement of the special spray dust suppression device for aerial building construction machines, the lower end of the extension pipe is connected to one end of the telescopic hose, and the other end of the telescopic hose is connected to the spray valve nozzle.
[0018] With such a structure, the telescopic hose is convenient for hand-held operation.
[0019] As a further improvement of the special spray dust reduction device for aerial building construction machines, the spray pipe is slidably connected with a sliding block, a protrusion is arranged on one side of the sliding block, a hanging bayonet is arranged on the protrusion, and the hanging bayonet is semi-closed to clamp the telescopic hose.
[0020] With such a structure, the telescopic hose is clamped on the hanging bayonet when not in use.
[0021] As a further improvement of the special spray dust reduction device for aerial building construction machines, a tension spring is fixedly connected between the sliding block and the hinged seat.
[0022] With such a structure, after the sliding block is pulled down, it can be reset by the tension spring, and after the hanging bayonet catches the spray valve nozzle, it can be reset and the telescopic hose can be raised again.
[0023] Regarding the technical topic of the method of using the automatic spray dust reduction device for aerial building construction machines, the specific steps are as follows; S1: Install beams on the steel frame of the building machine; S2: Install the remaining components on the basis of the beam; S3: The water injection pipe is connected to the water pump, and the water pump is connected to the water tank; S4: Start the motor to rotate forward, unfold the sunshade cloth and the spray dust reduction assembly, and start the water pump to inject water for spraying; S5: After the spraying is finished, the motor is started to reverse to retract the sunshade cloth and the spray dust reduction assembly.
[0024] Adopt this method, convenient for spraying dust reduction.
[0025] As a further improvement of the method of use, in S1, the beam extends above the concrete. In S3, the water tank and the water pump adopt sunshade measures, so that the water pipe, the water tank and the water pump are all provided with sunshade measures; In S4, the valve method of closing the spray valve nozzle is adopted to automatically water and cure the concrete through the spray nozzle, or the method of closing the spray nozzle valve is adopted to pull down the sliding block to detach the telescopic hose from the hanging clamp, and the operator holds the spray valve nozzle to water and cure the concrete.
[0026] This method is conducive to watering and curing concrete. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a structural schematic diagram of an embodiment; Figure 2 It is a bottom view of the structure of the embodiment; Figure 3 for Figure 1 Installation diagram of several U-shaped brackets; Figure 4 for Figure 3 Installation diagram of the middle spray dust suppression assembly; Figure 5 for Figure 3 A schematic diagram of the combination of several U-shaped brackets and two cross beams; Figure 6 for Figure 4 Schematic diagram of the structure of the middle spray dust suppression component; Figure 7 for Figure 6 Schematic diagram of the structure of the middle spray pipe; Figure 8 for Figure 4 A partial enlarged view of the middle A; Fig. 9 It is a structural schematic diagram of the sliding block.
[0028] Fig.10 It is the assembly structure diagram of the middle part of the X-shaped frame and the top cross bar of the U-shaped bracket in the middle position.
[0029] Fig.11 It is the assembly diagram of the articulated seat and the connecting rod.
[0030] Reference numerals: 1, crossbeam; 2, sunshade cloth; 3, U-shaped bracket; 4, T-shaped slide; 5, connecting frame; 6, X-shaped frame; 7. Spray dust suppression assembly; 71. Articulated seat; 72. Spray pipe; 73. Extension pipe; 74. Spray nozzle; 75. Bolt; 76. Connecting rod; 77. Notch; 78. Water injection pipe; 79, directional spray parts; 791, telescopic hose; 792, spray valve nozzle; 793, sliding block; 794, tension spring; 795, hanging bayonet; 8. Propulsion assembly; 81. Tooth plate; 82. Driving gear; 83. Transmission shaft; 84. Motor; 85. Transmission assembly. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0032] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] Example 1 Reference Figure 1-Figure 11 As shown, an automatic spray dust reduction device for an aerial building construction machine comprises two beams 1 fixedly mounted on a steel frame platform of the building construction machine, and sunshade cloths 2 are arranged above the two beams 1 at intervals; a plurality of U-shaped brackets 3 are arranged between the two beams 1, and both ends of the plurality of U-shaped brackets 3 are fixedly connected to connecting frames 5; the sunshade cloths 2 are fixed to the top of the connecting frames 5, By setting up a sunshade cloth 2, the upper part of the aerial building machine is protected to form functions such as sunshade and wind shielding, thereby improving the comfort of the working environment of the staff; At least one set of spray dust reduction components 7 is arranged between two adjacent U-shaped brackets 3; two vertical support plates of the U-shaped bracket 3 are slidably connected to the inner side of the beam 1, a T-shaped slide groove 4 is arranged on the inner side of the beam 1, and a T-shaped slider is arranged on the outer side of the two vertical support plates of the U-shaped bracket 3 to slide and adapt to the T-shaped slide groove 4; A propulsion assembly 8 is installed on the vertical support plate of the outermost U-shaped bracket 3 to move along the axial direction of the beam 1; Reference Figure 3 The propulsion assembly 8 includes a toothed plate 81 fixed to the top of the two cross beams 1; a driving gear 82 is meshed on the toothed plate 81, and the toothed plate 81 is coaxially fixed with a transmission shaft 83, and the transmission shaft 83 slides through the vertical support plate of the U-shaped bracket 3; a motor 84 is installed on the bottom surface of the top cross bar of the U-shaped bracket 3, and the motor 84 can adopt a motor that realizes forward and reverse functions, such as a stepping motor, and is driven by a corresponding control system, such as a remote control; the output shaft of the motor 84 is connected to the transmission shaft 83 through a transmission assembly, and the transmission assembly is a sprocket transmission assembly, a belt transmission assembly or a gear transmission assembly.
[0034] By setting the propulsion component 8, the outermost U-shaped bracket 3 can be driven to move; since the sunshade cloth 2 is installed on multiple spaced U-shaped brackets 3, when the outermost U-shaped bracket 3 moves, it is convenient to fold or unfold the sunshade cloth 2 and the spray dust reduction component 7.
[0035] Reference Figure 3 and Figure 5 As shown, an X-shaped frame 6 is hinged between the first and last U-shaped brackets 3. The X-shaped frame 6 is made of multiple oblique rods stacked crosswise, and the ends and the middle of the oblique rods are respectively hinged. Fig.10 In the embodiment, a coaxially extending groove is provided on the top cross bar of the U-shaped bracket 3 to accommodate the pin at the end of the diagonal rod, forming a sliding connection so that the X-shaped frame 6 can push the U-shaped bracket 3 in the middle position.
[0036] Reference Figure 6-Figure 8 As shown, the spray dust reduction assembly 7 includes an articulated seat 71 arranged between adjacent U-shaped brackets 3, grooves are arranged on both sides of the articulated seat 71, pins are installed in the grooves, the pins are connected to the upper end of the connecting rod 76, the lower end of the connecting rod 76 is hinged to the top cross bar of the U-shaped bracket 3, and notches 77 are arranged on both sides of the top cross bar of the U-shaped bracket 3, and pins are also installed in the notches 77 for passing through the lower end of the connecting rod 76; When several U-shaped brackets 3 are retracted, the fan-shaped movement of the connecting rod 76 can be used to drive the spray dust reduction assembly 7 to retract upward; conversely, when several U-shaped brackets 3 are expanded, the fan-shaped movement of the connecting rod 76 can be used to drive the spray dust reduction assembly 7 to expand downward synchronously.
[0037] like Fig.11As shown, the hinge seat 71 and the connecting rod 76 are installed with upper and lower intervals, and the limit screws arranged crisscrossly can prevent the connecting rod 76 from being straightened and avoid the overall structure from being difficult to fold.
[0038] The middle part of the hinge seat 71 is fixedly sleeved with a spray pipe 72, and the upper end of the spray pipe 72 is connected to a water injection pipe 78; a plurality of sections of corrugated pipes are arranged at intervals on the water injection pipe 78 to facilitate compression; A sealing ring is fixed inside the spray pipe 72, and an extension pipe 73 is sleeved in the sealing ring. Two sides of the extension pipe 73 are connected to two spray nozzles 74; The lower end of the spray pipe 72 is threadedly connected to a bolt 75, the bolt 75 is arranged below the sealing ring, and the bolt 75 abuts against the extension pipe 73; The lower end of the extension tube 73 is connected to one end of the telescopic hose 791, and the other end of the telescopic hose 791 is connected to the spray valve nozzle 792; With such a structure, the worker holds the spray valve nozzle 792 and discharges part of the water source inside the spray pipe 72 to the designated spray dust reduction position through the extension pipe 73, thereby forming a fixed-point spray dust reduction operation. In addition, it is convenient to spray part of the spray water source onto the building, thereby forming a building watering operation, thereby fully utilizing the water source of the spray dust reduction system. The spray pipe 72 is slidably connected with a sliding block 793, a protrusion is provided on one side of the sliding block 793, a hanging bayonet 795 is provided on the protrusion, and the telescopic hose 791 is passed through the hanging bayonet 795; The hanging bayonet 795 can be semi-enclosed to remove the telescopic hose 791.
[0039] A tension spring 794 is fixedly connected between the sliding block 793 and the hinge seat 71; By pulling down the tension spring 794, the height of the sliding block 793 is lowered to a position suitable for hanging the telescopic hose 791 on the hanging bayonet 795. Then the tension spring 794 is released and reset, so that the folded telescopic hose 791 can be retracted upward, which has a retraction protection effect and can prevent the excessively long telescopic hose 791 from being positioned too low, affecting people's walking, or blocking the field of vision, or preventing it from being entangled with other construction materials in the transportation process.
[0040] Example 2 Based on the method for using the automatic spray dust reduction device for aerial building construction machines described in Example 1, the specific steps are as follows: S1: Install beam 1 on the steel frame of the building construction machine; S2: Install the remaining components on the basis of beam 1; S3: The water injection pipe 78 is connected to the water pump, and the water pump is connected to the water tank; S4: Start the motor 84 to rotate forward, unfold the sunshade cloth 2 and the spray dust reduction assembly 7, and start the water pump to inject water for spraying; S5: After the spraying is finished, the motor 84 is started to reverse to retract the sunshade cloth 2 and the spraying dust reduction assembly 7.
[0041] Adopt this method, convenient for spraying dust reduction.
[0042] In this embodiment, in S1, the beam 1 extends above the concrete. In S3, the water tank and the water pump adopt sunshade measures, so that the water pipe, the water tank and the water pump are all provided with sunshade measures; In S4, the spray valve 792 is closed to automatically water the concrete through the spray nozzle 74, or the valve of the spray nozzle 74 is closed to pull down the sliding block 793 to detach the telescopic hose 791 from the hanging bayonet 795, and the operator holds the spray valve 792 to water the concrete.
[0043] This method is conducive to watering and curing concrete.
[0044] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art of the present invention, several equivalent substitutions or obvious variations can be made without departing from the concept of the present invention, and the performance or use is the same, which should be regarded as belonging to the protection scope of the present invention.
Claims
1. A spray dust suppression device specially designed for aerial building construction machines, characterized in that include: There are two cross beams (1), and the inner side of each cross beam is provided with a T-shaped slide groove (4) extending along the axial direction thereof; Sunshade cloths (2) are arranged above the crossbeams (1) at intervals; A U-shaped bracket (3) is arranged between the two cross beams (1), and a plurality of U-shaped brackets are arranged at intervals along the cross beam (1), and the U-shaped bracket has two vertical support plates and a top cross plate, and a T-shaped sliding block is arranged on the outer side of the vertical support plate to slide and fit with the T-shaped sliding groove (4); A connecting frame (5) is installed at intervals on the top horizontal plate of the U-shaped bracket (3), and the sunshade cloth (2) is installed on the top of the connecting frame (5); A spray dust suppression assembly (7) is arranged below the sunshade cloth (2), and comprises an articulated seat (71) arranged between adjacent U-shaped brackets (3), grooves are arranged on both sides of the articulated seat (71), pins are installed in the grooves, and the upper end of the connecting rod (76) is passed through the pins, a notch (77) is arranged on the side of the top cross bar of the U-shaped bracket (3), a pin is also installed in the notch (77), and the lower end of the connecting rod (76) is passed through, the articulated seat (71) is fixedly sleeved with a spray pipe (72), and the upper end of the spray pipe (72) is connected to a horizontal water injection pipe (78); a plurality of sections of corrugated pipes are arranged at intervals on the water injection pipe (78).
2. The spray dust suppression device for aerial building construction machine according to claim 1 is characterized in that An X-shaped frame (6) is hinged between the first and last U-shaped brackets (3), and the X-shaped frame (6) is formed by cross-stacked multiple oblique rods, with the two ends and the middle of the oblique rods being hinged and fixed.
3. The spray dust suppression device for aerial building construction machine according to claim 1 or 2, characterized in that A propulsion assembly (8) is installed on the vertical support plate of the outermost U-shaped bracket (3), and the propulsion assembly (8) includes a toothed plate (81) fixed to the top of the two cross beams (1); a driving gear (82) is meshed on the toothed plate (81), the toothed plate (81) is coaxially fixedly connected to a transmission shaft (83), and the transmission shaft (83) slidably penetrates the vertical support plate of the U-shaped bracket (3); a motor (84) is installed on the bottom surface of the top cross bar of the U-shaped bracket (3), and the output shaft of the motor (84) is connected to the transmission shaft (83) through the transmission assembly.
4. The spray dust suppression device for aerial building construction machine according to claim 3 is characterized in that The transmission assembly is a sprocket transmission assembly, a belt transmission assembly or a gear transmission assembly.
5. The spray dust suppression device for aerial building construction machine according to claim 4 is characterized in that A sealing ring is fixed inside the spray pipe (72), an extension pipe (73) is sleeved in the sealing ring, two sides of the extension pipe (73) are respectively connected to two spray nozzles (74), and a bolt (75) is threadedly connected to the lower end of the spray pipe (72), and the bolt (75) is tightly pressed against the extension pipe (73).
6. The spray dust suppression device for aerial building construction machine according to claim 5 is characterized in that The lower end of the extension tube (73) is connected to one end of the telescopic hose (791), and the other end of the telescopic hose (791) is connected to the spray valve nozzle (792).
7. The spray dust suppression device for aerial building construction machine according to claim 6 is characterized in that The spray pipe (72) is slidably connected with a sliding block (793), a protrusion is provided on one side of the sliding block (793), a hanging bayonet (795) is provided on the protrusion, and the hanging bayonet (795) is semi-enclosed to clamp the telescopic hose (791).
8. The spray dust suppression device for aerial building construction machine according to claim 7 is characterized in that A tension spring (794) is fixedly connected between the sliding block (793) and the hinge seat (71).
9. A method for using the automatic spray dust reduction device for aerial building construction machines according to claim 8, characterized in that: The specific steps are as follows; S1: Install the beam (1) on the steel frame of the building construction machine; S2: Install the remaining components on the basis of the crossbeam (1); S3: the water injection pipe (78) is connected to the water pump, and the water pump is connected to the water tank; S4: starting the motor (84) to rotate forward, unfolding the sunshade cloth (2) and the spray dust reduction assembly (7), and starting the water pump to inject water for spraying; S5: After the spraying is finished, the motor (84) is started to rotate in reverse to retract the sunshade cloth (2) and the spraying dust reduction assembly (7).
10. The method for using the automatic spray dust suppression device for aerial building construction machines according to claim 9 is characterized in that In S1, the beam (1) extends above the concrete. In S3, the water tank and the water pump adopt sunshade measures, so that the water pipe, the water tank and the water pump are all provided with sunshade measures; In S4, the spray valve nozzle (792) is closed to automatically water and cure the concrete through the spray nozzle (74), or the spray nozzle (74) is closed to pull down the sliding block (793) to separate the telescopic hose (791) from the hanging bayonet (795), and the operator holds the spray valve nozzle (792) to water and cure the concrete.
Citation Information
Patent Citations
Spraying dust fall device based on self-lifting building platform
CN215352703U
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CN114856300A
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CN117582765A
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CN217680681U