A high-altitude dust suppression device for construction

Abstract

The present invention discloses an aerial dust reduction device for building construction, which includes a U-shaped frame, a driving component, a spraying component, and a climbing mechanism. The middle section of the U-shaped frame is penetrated and fixedly connected with a control panel. One side of the U-shaped frame is fixedly connected with a guide rail, and the guide rail is arranged on one side of the wall. By setting the driving component, the coordinated and synchronous operation of each structure of the device is driven by a single signal, eliminating the manual operation link and greatly improving the use efficiency of the device. By setting the spraying component, the spraying angle of the water curtain is synchronously adjusted during the operation of the device to automatically adapt to the height of the building, thereby further improving the automation degree of the device. By setting the climbing mechanism, the device has the function of automatically climbing along the outer wall of the building and automatically opening and closing according to the height of the outer wall of the building, eliminating the repeated disassembly and assembly link and effectively improving the dust reduction efficiency of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of high-altitude dust suppression, and particularly to a high-altitude dust suppression device for building construction. Background Technique

[0002] High-altitude dust suppression in building construction refers to the phenomenon that during the building construction process, especially during high-rise building or high-altitude operations, the generated particulate matter spreads through the air and finally settles on the ground or the surrounding environment. These particulate matters can come from various sources, such as soil, sand, gravel, cement, construction waste, etc. High-altitude dust suppression not only affects the air quality at the construction site but may also have a negative impact on the surrounding environment and the health of residents.

[0003] Currently, a Chinese patent with the patent number CN115624832B discloses a high-altitude dust suppression device for green building construction, which includes a dust suppression water delivery steel pipe. Limit wire sleeves are provided at both ends of the dust suppression water delivery steel pipe, and pipe joints are connected to the pipe orifices of the limit wire sleeves; a plug ring is arranged at one end of the pipe joint, a hose is sleeved outside the plug ring, and a compression sleeve is sleeved outside the hose; a traction arm is rotatably connected to the surface of the compression sleeve, and a clamping strip is arranged on the surface of the traction arm, and the clamping strip is pushed into a clamping groove.

[0004] In this case, spray dust suppression is carried out by laying a water delivery pipeline. The hose is used in cooperation with the dust suppression water delivery steel pipe to lay the water delivery pipeline. When the water delivery pipeline needs to be disassembled and turned around, the two dust suppression water delivery steel pipes are bent and placed side by side through the hose, which not only realizes the stacking of multiple dust suppression water delivery steel pipes, but also the orifices of the dust suppression water delivery steel pipes are surrounded by the hose to prevent sundries from entering. Moreover, the hose and the pipe joint are firmly connected by the compression sleeve, and the compression sleeve is convenient for loading and unloading.

[0005] However, during the actual high-altitude construction operation, as the construction operation progresses, the height of the building continuously increases. The dust suppression device in this case needs to be manually disassembled and assembled repeatedly when the building height changes, resulting in more cumbersome use of the device; at the same time, the spraying step in this case needs to cooperate with external equipment and is controlled manually, and the automation degree of the device is limited. Summary of the Invention

[0006] The purpose of the present invention is to provide a high-altitude dust suppression device for building construction, which has the advantages of automatic climbing and synchronous adjustment, and solves the problems raised in the background technique.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A high-altitude dust suppression device for building construction includes a U-shaped frame, a driving component, a spraying component, and a climbing mechanism. The middle section of the U-shaped frame is penetrated and fixedly connected with a control panel. One side of the U-shaped frame is fixedly connected with a guide rail, and the guide rail is arranged on one side of the outer surface of the wall;

[0008] The driving component includes a sliding block, which intermittently clamps and fixes the wall and sprays and dust suppresses the outer surface of the wall;

[0009] The spraying component includes a row of nozzles, and the driving component controls the rotation of the row of nozzles to adjust the spraying angle at the top of the wall;

[0010] The climbing mechanism includes an anti - detachment plate, and the spraying component cooperates with the wall to drive the anti - detachment plate to drive the whole device to rise on the outer surface of the wall.

[0011] Preferably, a sliding groove for the sliding block to be limited and slide is provided on the outer surface of the guide rail near the side of the C - shaped frame, and a trapezoidal groove is provided on the outer surface of the guide rail near the wall side.

[0012] Preferably, the driving component further includes a driving wheel, the axis of the driving wheel is penetrated and fixedly connected with a driving roller, two center connecting rods symmetrically distributed along the median line of the driving wheel are sleeved on the outer contour of the driving roller on the side far from the driving wheel, the two ends of the center connecting rod in the axial direction are respectively penetrated and sleeved with positioning rollers, the end of the positioning roller far from the wall 13 penetrates and is in limit transmission connection with the driving wheel, a bidirectional connecting rod is sleeved at a position on the outer contour of the positioning roller close to the center connecting rod, a center wheel is fixedly connected to the outer contour of the middle section of the driving roller, two symmetrically distributed driving wheels are meshed and传动连接 with the outer contour of the center wheel, a limiting wheel is meshed and传动连接 with the side of the driving wheel far from the center wheel on the outer contour, and the axis of the driving wheel is penetrated and fixedly connected with the positioning roller;

[0013] The axis of the limiting wheel is penetrated and fixedly connected with a limiting roller, the limiting roller is penetrated at a position on the outer contour close to the limiting wheel and is in limit transmission connection with the end of the bidirectional connecting rod far from the positioning roller, the end of the limiting roller far from the limiting wheel penetrates and is in limit rotational connection with the sliding block, and a flat nozzle is fixedly connected to the end of the limiting roller far from the limiting wheel.

[0014] Preferably, the sliding block is in limit sliding connection in the trapezoidal groove of the guide rail, and the limiting roller is in limit sliding connection in the sliding groove of the guide rail.

[0015] Preferably, the spraying component further includes a cross - plate, two support rods are fixedly connected to both sides of the top of the cross - plate, the opposite surfaces of the tops of the support rods are penetrated and in limit rotational connection with a water pipe, a guide shaft is fixedly connected to the bottom of the outer contour of the water pipe, and the top of the middle section of the outer contour of the water pipe is fixedly connected with a row of nozzles;

[0016] Note: In the original text, there is an unclear "传动连接" which might be a misspelling or an incomplete expression. I translated it as "传动连接" for now. If it has a specific correct form, it should be adjusted accordingly.At a position of the transverse plate near the middle section, it is penetrated and connected with a lifting rod through one-way ratchet drive. The bottom end of the lifting rod is sleeved on the outer contour of one of the positioning rollers. On both sides of the bottom end of the transverse plate, hydraulic rods are fixedly connected, and the bottom ends of the hydraulic rods are fixedly connected to the upper surface of the U-shaped frame.

[0017] Preferably, the climbing mechanism further includes two L-shaped extension rods symmetrically distributed along the median line of the transverse plate. The L-shaped extension rods are fixedly connected to the outer contour of the middle section of the transverse plate near the wall. The side of the L-shaped extension rod close to the wall is penetrated and limitedly rotatably connected with two positioning shafts with staggered heights. Anti-slip plates and positioning plates are respectively fixedly connected to the outer contours of the middle sections of the positioning shafts. An activity groove adapted to the deflection of the anti-slip plate and the positioning plate is opened inside the L-shaped extension rod.

[0018] Preferably, the maximum deflection angle of the anti-slip plate is forty-five degrees, the maximum deflection angle of the positioning plate is thirty degrees, and a torsion spring for resetting the positioning shaft is arranged at the connection of the positioning shaft and the L-shaped extension rod.

[0019] Preferably, a control module for adjusting the operating state of the device is arranged inside the control panel. The control module includes a sensor, a first motor, and a second motor;

[0020] The sensor is arranged inside the positioning plate and is configured to monitor the pressure value between the outer surface of the positioning plate and the wall;

[0021] The first motor is arranged inside the driving roller and is configured to be in an always-on state and control the rotation of the driving roller;

[0022] The second motor is arranged inside the driving wheel and is configured to be driven and control the rotation of the driving wheel via the change of the sensor value.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. By setting the driving assembly, the present invention drives the coordinated and synchronous operation of each structure of the device through a single signal, eliminating the manual operation link and greatly improving the use efficiency of the device.

[0025] 2. By setting the spraying assembly, the present invention synchronously adjusts the spraying angle of the water curtain during the operation of the device to automatically adapt to the height of the building, thereby further improving the automation degree of the device.

[0026] 3. By setting the climbing mechanism, the present invention enables the device to have the function of automatically climbing along the outer wall of the building and automatically opening and closing according to the height of the outer wall of the building, eliminating the repeated disassembly and assembly link and effectively improving the dust reduction efficiency of the device. Description of the Drawings

[0027] Figure 1Schematic diagram of the main structure of the present invention;

[0028] Figure 2 Cross-sectional view of the main structure of the present invention;

[0029] Figure 3 Schematic diagram of the support frame structure of the present invention;

[0030] Figure 4 Exploded view of the drive component structure of the present invention;

[0031] Figure 5 Schematic diagram of the connection relationship of the drive components of the present invention;

[0032] Figure 6 Schematic diagram of the spray component structure of the present invention;

[0033] Figure 7 Schematic diagram of the climbing mechanism structure of the present invention;

[0034] Figure 8 Cross-sectional view of the climbing mechanism structure of the present invention;

[0035] Fig. 9 Overall working flow chart of the present invention.

[0036] In the figure: 1, U-shaped frame; 11, control panel; 12, guide rail; 13, wall; 2, drive wheel; 21, drive roller; 22, central connecting rod; 23, positioning roller; 24, bidirectional connecting rod; 25, central wheel; 26, transmission wheel; 27, limiting wheel; 3, sliding block; 31, limiting roller; 32, flat nozzle; 4, cross plate; 41, support rod; 42, lifting rod; 43, hydraulic rod; 44, water pipe; 45, row nozzle; 46, guide shaft; 5, L-shaped extension rod; 51, anti-disengagement plate; 52, positioning plate; 53, positioning shaft. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1:

[0038] Please refer to Figures 1 to 9, the present invention provides a technical solution: an aerial dust suppression device for building construction, including a U-shaped frame 1, a driving component, a spraying component, and a climbing mechanism, characterized in that: the middle section of the U-shaped frame 1 is penetrated and fixedly connected with a control panel 11, and one side of the U-shaped frame 1 is fixedly connected with a guide rail 12, and the guide rail 12 is arranged on one side of the outer surface of the wall 13;

[0039] The driving component includes a sliding block 3, and the sliding block 3 realizes intermittent clamping and fixing of the wall 13 and performs spray dust suppression on the outer surface of the wall 13;

[0040] The spraying component includes a row of nozzles 45, and the driving component controls the rotation of the row of nozzles 45 to realize the adjustment of the spraying angle at the top of the wall 13;

[0041] The climbing mechanism includes an anti-disengagement plate 51, and the spraying component cooperates with the wall 13 to drive the anti-disengagement plate 51 to realize the climbing of the climbing mechanism to drive the whole device to rise on the outer surface of the wall 13.

[0042] A sliding groove for the sliding block 3 to be limited and slide is opened on the outer surface of the guide rail 12 close to one side of the U-shaped frame 1, and a trapezoidal groove is opened on the outer surface of the guide rail 12 close to one side of the wall 13.

[0043] In the present invention, by setting the device on the outer surface of the wall 13 to simulate the operating state of the device during high-altitude construction operations, the U-shaped frame 1 and the guide rail 12 connect and limit and support the overall structure of the device, and the control panel 11 is used to realize the automatic adjustment of the operating state of the device to improve the automation degree of the device.

[0044] Furthermore, the driving component adjusts and drives the device through the control module to perform rotary spray dust suppression on the side of the wall 13. The rotating spraying mode can maximize the spray range and thus effectively improve the dust suppression efficiency of the device; the spraying component is controlled by the driving component to perform spray dust suppression on the top of the wall 13, and its spraying angle is synchronously adjusted along with the movement of the driving component to adapt to the change of the rising height of the top of the building during construction operations; the climbing mechanism is controlled by the spraying component to drive the whole device to climb on the outer surface of the wall 13, so that the overall height of the device is increased, eliminating the manual adjustment step to improve the automation degree of the device. Embodiment Two:

[0045] Please refer to Figures 4 to 5, this embodiment further explains the first embodiment, the driving assembly also includes a driving wheel 2, the axis of the driving wheel 2 is penetrated and fixedly connected with a driving roller 21, the outer contour of the driving roller 21 away from the driving wheel 2 is sleeved with two center connecting rods 22 symmetrically distributed along the median line of the driving wheel 2, the two axial ends of the center connecting rod 2 are penetrated and sleeved with positioning rollers 23 respectively, the end of the positioning roller 23 away from the wall 13 is penetrated and connected with the driving wheel 2 in a limited transmission connection, a two-way connecting rod 24 is sleeved at a position close to the center connecting rod 22 on the outer contour of the positioning roller 23, a center wheel 25 is fixedly connected to the outer contour of the middle section of the driving roller 21, the outer contour of the center wheel 25 is meshed and transmission-connected with two centrally symmetrically distributed transmission wheels 26, the outer contour of the transmission wheel 26 is meshed and transmission-connected with a limited wheel 27 on the side away from the center wheel 25, and the axis of the transmission wheel 26 is penetrated and fixedly connected with the positioning roller 23;

[0046] The axis of the limiting wheel 27 is penetrated by and fixedly connected with a limiting roller 31, the outer contour of the limiting roller 31 near the limiting wheel 27 is penetrated and connected to the end of the two-way connecting rod 24 away from the positioning roller 23 in a limiting transmission manner, the outer contour of the limiting roller 31 away from the limiting wheel 27 is penetrated and connected to the sliding block 3 in a limiting rotation manner, and the end of the limiting roller 31 away from the limiting wheel 27 is fixedly connected with a flat nozzle 32.

[0047] The sliding block 3 is connected to the trapezoidal groove of the guide rail 12 in a limited sliding manner, and the limiting roller 31 is connected to the sliding groove of the guide rail 12 in a limited sliding manner.

[0048] When the device starts working, the driving roller 21 starts to rotate and drives the center wheel 25 to rotate synchronously. Since the center wheel 25 is meshed with the transmission wheel 26 and is transmission-connected, and the transmission wheel 26 is meshed with the limiting wheel 27 and is transmission-connected, that is, the transmission wheel 26 and the limiting wheel 27 rotate synchronously with the center wheel 25, and the rotation directions of the transmission wheel 26 and the center wheel 25 are opposite, and the rotation directions of the limiting wheel 27 and the center wheel 25 are the same.

[0049] It should be noted that the distance between the driving roller 21, the positioning roller 23 and the limiting roller 31 is limited by the central connecting rod 22 and the bidirectional connecting rod 24, so as to avoid accidental offset between the driving roller 21, the positioning roller 23 and the limiting roller 31 when the central wheel 25, the transmission wheel 26 and the limiting wheel 27 rotate, thereby ensuring the normal operation of the driving component.

[0050] Furthermore, since the limiting wheel 27 is fixedly connected to the limiting roller 31 and the limiting roller 31 is fixedly connected to the flat nozzle 32, that is, the limiting wheel 27 synchronously drives the sliding block 3 and the flat nozzle 32 to rotate, the rotation of the flat nozzle 32 greatly increases the spray range on the side of the wall 13, thereby effectively improving the dust reduction efficiency of the device.

[0051] Further, when the driving wheel 2 starts to rotate, the two positioning rollers 23 deflect synchronously. At this time, the central connecting rod 22 and the bidirectional connecting rod 24 tend to be at a horizontal angle, that is, the limiting wheel 27 starts to rotate on the outer contour of the transmission wheel 26 and the overall driving assembly realizes ultimate stretching at the horizontal position. During this process, the limiting wheel 27 drives the sliding block 3 and the limiting roller 31 to slide synchronously towards both ends inside the guide rail 12. The sliding block 3 slides in the trapezoidal groove of the guide rail 12 and reaches the extreme positions at both ends of the trapezoidal groove of the guide rail 12 when the limiting wheel 27 is horizontal. The limiting roller 31 slides in the sliding groove of the guide rail 12 and reaches the extreme positions at both ends of the sliding groove of the guide rail 12 when the limiting wheel 27 is horizontal.

[0052] Further, along with the horizontal sliding of the sliding block 3, the limiting roller 31 and the flat nozzle 32, at this time, the sliding block 3 releases the clamping and fixing state of the wall 13, and the spraying range of the flat nozzle 32 is further expanded to improve the dust reduction efficiency of the device. Embodiment Three:

[0053] Please refer to Figure 6 This embodiment further describes Embodiment Two. The spraying assembly further includes a cross plate 4. On both sides of the top end of the cross plate 4, there are fixedly connected support rods 41. The opposite surfaces of the top ends of the support rods 41 are penetrated and limitedly rotationally connected with a water pipe 44. At the bottom end of the outer contour of the water pipe 44, there is fixedly connected a guide shaft 46. At the top end of the middle section of the outer contour of the water pipe 44, there is fixedly connected with a row type nozzle 45;

[0054] At a position near the middle section of the cross plate 4, there is a penetrated part and it is connected with a lifting rod 42 through a ratchet one-way drive. The bottom end of the lifting rod 42 is sleeved on the outer contour of one of the positioning rollers 23. On both sides of the bottom end of the cross plate 4, there are fixedly connected hydraulic rods 43. The bottom ends of the hydraulic rods 43 are fixedly connected to the upper surface of the C-shaped frame 1.

[0055] As can be seen from Embodiment Two, during the rotation of the driving wheel 2, the central connecting rod 22 drives the positioning roller 23 to tend to a horizontal angle. At this time, the height of the positioning roller 23 changes and drives the lifting rod 42 to rise and fall synchronously. Since the lifting rod 42 and the cross plate 4 are connected through a ratchet one-way drive, when the lifting rod 42 has a downward trend, the hydraulic rod 43 is compressed. At this time, the height of the spraying assembly remains fixed under the action of the climbing mechanism, so that the compression of the hydraulic rod 43 will drive the C-shaped frame 1 and the driving assembly to rise synchronously to realize the climbing of the device on the outer surface of the wall 13.

[0056] Furthermore, along with the climbing of the driving assembly, the lifting rod 42 rises synchronously and begins to contact and squeeze the guide shaft 46. Under the squeezing action of the lifting rod 42, the guide shaft 46 drives the water pipe 44 and the row of sprinklers 45 to deflect synchronously. At this time, the deflection angle of the row of sprinklers 45 changes, thereby achieving a situation where the spraying angle of the row of sprinklers 45 changes with the height change of the top of the wall 13.

[0057] It should be noted that the fixed support of the upper part of the device is achieved through the fixed connection between the cross plate 4 and the support rod 41 and the climbing mechanism, which further provides a basis for the climbing operation of the lower part of the device. Embodiment four:

[0058] See also Figures 7 and 8 , this embodiment further explains Example 3, the climbing mechanism also includes two L-shaped extension rods 5 symmetrically distributed along the median line of the horizontal plate 4, the L-shaped extension rods 5 are fixedly connected to the outer contour of the middle section of the horizontal plate 4 close to the wall 13, the side of the L-shaped extension rod 5 close to the wall 13 is penetrated and limitedly rotated by two positioning shafts 53 with staggered heights, the outer contour of the middle section of the positioning shaft 53 is respectively fixedly connected with an anti-slip plate 51 and a positioning plate 52, and the interior of the L-shaped extension rod 5 is provided with a movable groove adapted to the deflection of the anti-slip plate 51 and the positioning plate 52.

[0059] The maximum deflection angle of the anti-slip plate 51 is 45 degrees, the maximum deflection angle of the positioning plate 52 is 30 degrees, and a torsion spring for resetting the positioning shaft 53 is provided at the connection between the positioning shaft 53 and the L-shaped extension rod 5 .

[0060] It can be seen from Example 3 that when the sliding block 3 releases the clamping and fixing state on the wall 13, the entire device tends to fall under the action of gravity. At this time, the contact pressure between the anti-slip plate 51 and the wall 13 increases significantly, causing the anti-slip plate 51 to deflect and come into contact with the L-shaped extension rod 5. At this time, the deflection angle of the anti-slip plate 51 cannot continue to rotate under the action of the L-shaped extension rod 5, thereby achieving the fixation of the upper half of the device.

[0061] Furthermore, when the sliding block 3 regains the clamping and fixing state on the wall 13, the upper part of the device tends to climb upward under the resetting action of the hydraulic rod 43. At this time, the contact pressure between the anti-slip plate 51 and the wall 13 is reduced and the climbing operation of the device is realized. Embodiment five:

[0062] See also Fig. 9 , this implementation further explains the fourth embodiment, the control panel 11 is provided with a control module for adjusting the operating state of the device, and the control module includes a sensor, a motor 1 and a motor 2;

[0063] The sensor is disposed inside the positioning plate 52 and is configured to monitor the pressure value between the outer surface of the positioning plate 52 and the wall 13;

[0064] The motor 1 is disposed inside the driving roller 21 and is configured to be in a normally open state and controls the driving roller 21 to rotate;

[0065] The second motor is disposed inside the driving wheel 2 and is configured to drive and control the driving wheel 2 to rotate via changes in sensor values.

[0066] When the construction work causes the top height of the wall 13 to rise, contact occurs between the wall 13 and the positioning plate 52. Since the maximum deflection angle of the positioning plate 52 is greater than the maximum deflection angle of the anti-slip plate 51, that is, the contact pressure between the wall 13 and the positioning plate 52 is greater than the contact pressure between the wall 13 and the anti-slip plate 51, the sensor reading inside the positioning plate 52 changes synchronously and drives the motor 2 to control the driving wheel 2 to start rotating. From the above process, it can be seen that the rotation of the driving wheel 2 can control the climbing of the device.

[0067] Furthermore, as the device climbs, the height of the positioning plate 52 gradually becomes higher than the wall 13. At this time, the contact pressure between the positioning plate 52 and the wall 13 disappears, and the sensor in the positioning plate 52 controls the motor 2 to stop rotating, and the device stops climbing, thereby achieving the purpose of the device adapting to the top height of the wall 13.

[0068] Furthermore, the normally open motor 1 can control the limiting roller 31 and the flat nozzle 32 to always keep rotating, thereby realizing the rotary spray dust reduction operation on the side of the wall 13, and the switch of the motor 1 can be controlled by the control panel 11 to keep the device in the closed state when no high-altitude construction work is being carried out.

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aerial dust reduction device for building construction, comprising a U-shaped frame (1), a driving assembly, a spraying assembly and a climbing mechanism, characterized in that: The middle section of the U-shaped frame (1) is penetrated and fixedly connected with a control panel (11). One side of the U-shaped frame (1) is fixedly connected with a guide rail (12), and the guide rail (12) is arranged on one side of the outer surface of the wall (13). The driving assembly includes a sliding block (3), and the sliding block (3) intermittently clamps and fixes the wall (13) and sprays and dust suppresses the outer surface of the wall (13). The spraying assembly includes a row of nozzles (45), and the driving assembly controls the rotation of the row of nozzles (45) to adjust the spraying angle at the top of the wall (13). The climbing mechanism includes an anti-disengagement plate (51), and the spraying assembly cooperates with the wall (13) to drive the anti-disengagement plate (51) so that the climbing mechanism drives the whole device to rise on the outer surface of the wall (13). The driving assembly further includes a driving wheel (2). The axis of the driving wheel (2) is penetrated and fixedly connected with a driving roller (21). Two central connecting rods (22) symmetrically distributed along the median line of the driving wheel (2) are sleeved on the outer contour of the driving roller (21) on the side far from the driving wheel (2). The two ends of the central connecting rod (22) in the axial direction are respectively penetrated and sleeved with positioning rollers (23). The end of the positioning roller (23) far from the wall (13) is penetrated and in limit transmission connection with the driving wheel (2). A bidirectional connecting rod (24) is sleeved at a position on the outer contour of the positioning roller (23) close to the central connecting rod (22). A central wheel (25) is fixedly connected to the outer contour of the middle section of the driving roller (21). Two centrally symmetrically distributed transmission wheels (26) are meshed and传动连接 with the outer contour of the central wheel (25). A limiting wheel (27) is meshed and传动连接 with the outer contour of the transmission wheel (26) on the side far from the central wheel (25). The axis of the transmission wheel (26) is penetrated and fixedly connected with the positioning roller (23). The axis of the limiting wheel (27) is penetrated and fixedly connected with a limiting roller (31). The outer contour of the limiting roller (31) close to the limiting wheel (27) is penetrated and in limit transmission connection with the end of the bidirectional connecting rod (24) far from the positioning roller (23). The outer contour of the end of the limiting roller (31) far from the limiting wheel (27) is penetrated and in limit rotational connection with the sliding block (3). A flat nozzle (32) is fixedly connected to the end of the limiting roller (31) far from the limiting wheel (27). The spraying assembly further includes a cross plate (4). Support rods (41) are fixedly connected to both sides of the top of the cross plate (4). The opposite surfaces of the tops of the support rods (41) are penetrated and in limit rotational connection with a water pipe (44). A guide shaft (46) is fixedly connected to the bottom of the outer contour of the water pipe (44). The top of the middle section of the outer contour of the water pipe (44) is fixedly connected with a row of nozzles (45). The position of the cross plate (4) near the middle section is penetrated and connected with a lifting rod (42) through one-way ratchet drive. The bottom end of the lifting rod (42) is sleeved on the outer contour of one of the positioning rollers (23). The two sides of the bottom end of the cross plate (4) are fixedly connected with hydraulic rods (43). The bottom ends of the hydraulic rods (43) are fixedly connected to the upper surface of the U-shaped frame (1). The climbing mechanism further includes two L-shaped extension rods (5) symmetrically distributed along the median line of the cross plate (4). The L-shaped extension rods (5) are fixedly connected to the outer contour of the middle section of the cross plate (4) on the side close to the wall (13). The side of the L-shaped extension rod (5) close to the wall (13) is penetrated and limitedly rotationally connected with two positioning shafts (53) with staggered heights.

2. A high-altitude dust suppression device for construction according to claim 1, characterized in that: A sliding groove for the limit sliding of the sliding block (3) is formed on the outer surface of the guide rail (12) on the side close to the U-shaped frame (1), and a trapezoidal groove is formed on the outer surface of the guide rail (12) on the side close to the wall (13).

3. A high-altitude dust suppression device for construction according to claim 1, characterized in that: The sliding block (3) is limit slidably connected in the trapezoidal groove of the guide rail (12), and the limit roller (31) is limit slidably connected in the sliding groove of the guide rail (12).

4. A high-altitude dust suppression device for construction according to claim 1, characterized in that: Anti-disengagement plates (51) and positioning plates (52) are respectively fixedly connected to the outer contour of the middle section of the positioning shafts (53). An activity groove adapted to the deflection of the anti-disengagement plates (51) and the positioning plates (52) is formed inside the L-shaped extension rod (5).

5. A high-altitude dust suppression device for construction according to claim 4, characterized in that: The maximum deflection angle of the anti-disengagement plate (51) is 45 degrees, and the maximum deflection angle of the positioning plate (52) is 30 degrees. A torsion spring for resetting the positioning shaft (53) is arranged at the connection between the positioning shaft (53) and the L-shaped extension rod (5).

6. The high-altitude dust suppression device for construction according to claim 1, characterized in that: A control module for adjusting the operating state of the device is arranged inside the control panel (11). The control module includes a sensor, a first motor, and a second motor.

7. A high-altitude dust suppression device for construction according to claim 6, characterized in that: The sensor is arranged inside the positioning plate (52) and is configured to monitor the pressure value between the outer surface of the positioning plate (52) and the wall (13). The first motor is arranged inside the driving roller (21) and is configured to be in a normally open state and control the rotation of the driving roller (21). The second motor is arranged inside the driving wheel (2) and is configured to be driven and control the rotation of the driving wheel (2) via the change of the sensor value.

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