Environment-friendly spraying dust-settling device for high-speed railway bridge construction

Abstract

The application relates to an environment-friendly spraying dust-settling device for high-speed railway bridge construction, which comprises a telescopic base, the top end of the telescopic base is fixed with a top base, the end of the top base is installed with a rotating seat, a plurality of guide seats are arranged in an annular array on the outer circumference of the rotating seat, the guide seats are axially provided with telescopic first atomizing pieces, a rotating pipe is arranged between the rotating seat and the top base, and the device further comprises a water flow rotating assembly, a second atomizing piece and a telescopic adjusting assembly. The water flow rotating assembly comprises impact leaves and a linkage piece. In the application, the reverse synchronous movement of the first atomizing piece and the second atomizing piece is realized through the telescopic adjusting assembly. When the first atomizing piece moves outward and expands the dust-settling range due to centrifugal force, the second atomizing piece synchronously moves inward to fill the atomizing vacancy in the central area. Even if the centrifugal force is increased with the increase of the water flow speed, the outward deviation of the atomized water is increased, and the second atomizing piece which moves inward can still ensure the atomized water coverage in the central area.

Description

Technical Field

[0001] This invention relates to the field of construction dust suppression technology, and in particular to an environmentally friendly spray dust suppression device for high-speed railway bridge construction. Background Technology

[0002] During the construction of high-speed railway bridges, the process involves multiple steps such as roadbed excavation and concrete pouring. A large amount of dust is inevitably generated during the construction process, and dust pollution has always been a major problem that plagues the construction environment and the health of workers.

[0003] Currently, various dust suppression devices for road and bridge construction have emerged in the industry. For example, patent CN118161943B discloses a spray dust suppression device for road and bridge construction. Through the design of a drive mechanism and a rotating frame, the slider inside the rotating frame can overcome the spring force and slide out of the collection groove under the action of centrifugal force, thus increasing the dust suppression range. However, in actual use, this type of device has some limitations. On the one hand, due to centrifugal force, the atomized dust suppression water sprayed by the device will continuously deviate in the direction of centrifugal force, and the centrifugal force increases with the rotation speed, causing the outward deviation of the atomized water to further increase. This results in a significant reduction in the atomized water coverage in the center of the construction area, forming a "peripheral" dust suppression effect. The imbalance of "sufficient dust suppression but lack of dust suppression in the center" makes it difficult to effectively suppress dust in the core working area of ​​railway bridge construction. On the other hand, such devices rely on motors to drive the rotating frame to rotate. However, high-speed railway bridge construction usually requires the simultaneous deployment of multiple dust suppression devices on a long working surface or at multiple working points. The simultaneous use of a large number of motors will not only significantly increase the initial cost of equipment procurement and installation, but also generate high power consumption and subsequent maintenance costs. Based on this, an environmentally friendly spray dust suppression device for high-speed railway bridge construction is proposed. Summary of the Invention

[0004] To overcome the problems existing in related technologies, the present invention provides an environmentally friendly spray dust suppression device for high-speed railway bridge construction. The device achieves the reverse synchronous movement of the first atomizing element and the second atomizing element through a telescopic adjustment component. When the first atomizing element moves outward due to centrifugal force to expand the dust suppression range, the second atomizing element moves inward synchronously to fill the atomization gap in the central area and ensure the atomized water coverage in the central area.

[0005] To achieve the above objectives, the present invention provides an environmentally friendly spray dust suppression device for high-speed railway bridge construction, comprising a telescopic base with a top seat fixed at its top, a rotating seat installed at the end of the top seat, multiple guide seats arranged in a circular array on the outer circumference of the rotating seat, a telescopic first atomizing element provided axially on the guide seats, a water guiding channel provided inside the top seat, and a rotating pipe provided between the rotating seat and the top seat, and further comprising: The water flow rotation assembly includes an impact blade and a linkage. The impact blade is rotatably disposed in the water guide channel. The linkage is connected between the rotating pipe and the impact blade. The impact blade is driven to rotate by the water flow, so that the rotating pipe is driven to rotate synchronously through the linkage. The rotation speed of the rotating pipe increases with the increase of the water flow velocity. The second atomizing element is located on the front side of the guide seat; A telescopic adjustment assembly is connected between the first atomizing element and the second atomizing element. When the first atomizing element moves outward due to centrifugal force, the telescopic adjustment assembly causes the second atomizing element to move inward synchronously.

[0006] Preferably, the guide seat is fixed on the rotating seat, the top seat is provided with a water cavity, a water pipe is fixed in the water cavity, the impact blade is disposed in the water pipe, and the water cavity is connected to a water supply pipe.

[0007] Preferably, the linkage component includes: The first bevel gear is connected to the end of the rotating shaft of the impact blade; The second bevel gear is meshed with the first bevel gear, and a connecting rod parallel to the rotating tube is connected to the second bevel gear; A spur gear is mounted on the outside of the connecting rod; A gear ring is fixed to the outside of the rotating tube and is meshed with a spur gear.

[0008] Preferably, the first atomizing element includes: The first nozzle is slidably fitted with the guide seat, and a plurality of first nozzles are mounted on the first nozzle; The first water delivery hose is connected between the first spray nozzle and the rotating pipe.

[0009] Preferably, the second atomizing element includes: The second nozzle is slidably disposed outside the guide seat along the length direction of the guide seat, and multiple second nozzles are installed on the second nozzle; The second water delivery hose is connected between the second nozzle and the first water delivery hose.

[0010] Preferably, a guide bar is fixed to the side of the second nozzle facing the guide seat, and a guide groove is provided on the side of the guide seat facing the second nozzle.

[0011] Preferably, the telescopic adjustment component includes: A first connecting piece and a second connecting piece, the second connecting piece being fixed to the bottom end of the first nozzle, and a return spring being connected between the first connecting piece and the second connecting piece; A lever-type connector is connected between the second connecting piece and the second nozzle, and is used to convert the sliding displacement of the first nozzle into the reverse synchronous displacement of the second nozzle.

[0012] Preferably, the guide seat has a through groove on the side facing the second nozzle.

[0013] Preferably, the lever-type connector includes: The first upright is vertically fixed to the upper end face of the second connecting piece; The second upright is vertically fixed to the bottom end of the through groove; The third upright is vertically fixed to the second nozzle by a protrusion; The adjusting component has the top of the second upright hinged to the middle of the adjusting component, and the first and third uprights are respectively hinged to both ends of the adjusting component, and the adjusting component is telescopic.

[0014] Preferably, the adjusting component includes a connecting block and a first connecting plate and a second connecting plate located on both sides of the connecting block. A third connecting plate is fixed to both ends of the connecting block, and a sliding groove is provided on the end of the first connecting plate and the second connecting plate facing the connecting block.

[0015] The technical solution provided by this invention may include the following beneficial effects: 1. In this invention, the first atomizing element and the second atomizing element move in opposite directions synchronously through the telescopic adjustment component. When the first atomizing element moves outward due to centrifugal force to expand the dust suppression range, the second atomizing element moves inward synchronously to fill the atomization gap in the central area. Even if the centrifugal force increases with the increase of water flow velocity, causing the atomized water to shift outward more, the inward-moving second atomizing element can still ensure the coverage of atomized water in the central area, solving the drawback of the traditional device of "sufficient dust suppression in the periphery and insufficient dust suppression in the center", and further improving the atomization dust suppression effect.

[0016] 2. In this invention, by setting up a water flow rotation component, the impact blade is driven to rotate by the kinetic energy of the dust-suppressing water flow. Then, the rotating tube and atomizing component are driven to rotate by the linkage component. There is no need to equip additional power equipment such as motors. On the one hand, it saves a lot of the initial cost of purchasing and installing motors. On the other hand, it avoids the high electricity bills and subsequent maintenance costs generated by motor operation. Long-term use can reduce the dust suppression cost of high-speed railway bridge construction, which meets the dual requirements of environmental protection and economy.

[0017] 3. In this invention, the flow rate of the water can be changed by adjusting the flow rate of the dust-reducing water or the size of the channel, thereby controlling the rotation speed of the rotating tube and the magnitude of the centrifugal force. When the flow rate increases, the centrifugal force is enhanced, the first atomizing element moves outward more to expand the dust-reducing range, and the second atomizing element moves inward more synchronously to enhance the dust reduction in the central area.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0019] The above and other objects, features and advantages of the present invention will become more apparent from the more detailed description of exemplary embodiments of the invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same parts in the exemplary embodiments of the invention.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a structural schematic diagram of the rotating seat, guide seat, first atomizing element, second atomizing element, and water flow rotation assembly of the present invention in cross-sectional view of the top seat; Figure 3 This is a schematic diagram of the structure of the rotating seat, guide seat, first atomizing element, second atomizing element, and water flow rotation assembly of the present invention; Figure 4 This is a front view of the rotating seat, guide seat, first atomizing element, and second atomizing element of the present invention; Figure 5 This is a schematic diagram of the structure of the guide seat, the first atomizing element, and the second atomizing element of the present invention; Figure 6 This is a schematic diagram of the structure of the first atomizing element of the present invention in cross-section of the guide seat; Figure 7 This is a structural schematic diagram of the first atomizing element, the second atomizing element, and the telescopic adjustment assembly of the present invention in cross-section of the guide seat; Figure 8 This is a schematic diagram of the lever-type connector of the present invention; Figure 9 This is a schematic diagram of the guide seat of the present invention.

[0021] The correspondence between the labels and component names in the attached figures is as follows: 1. Telescopic base; 2. Top seat; 21. Water cavity; 22. Water pipe; 3. Water supply pipe; 4. Rotating seat; 5. Guide seat; 51. Through groove; 52. Guide groove; 6. First atomizing element; 61. First nozzle; 62. First nozzle; 63. First water delivery hose; 7. Second atomizing element; 71. Second nozzle; 72. Second nozzle; 73. Second water delivery hose; 74. Guide bar; 8. Water flow rotating assembly; 81. Impact blade; 82. First bevel gear; 83. Second bevel gear; 84. Connecting rod; 85. Spur gear; 86. Gear ring; 9. Rotating tube; 91. Guide ring; 10. Telescopic adjustment assembly; 101. First connecting piece; 102. Return spring; 103. Second connecting piece; 104. First upright; 105. Adjusting component; 1051. Connecting block; 1052. First connecting plate; 1053. Second connecting plate; 1054. Third connecting plate; 106. Second upright; 107. Third upright. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this invention. Preferred embodiments of the invention will now be described in more detail with reference to the accompanying drawings. Although preferred embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the invention more thorough and complete, and to fully convey the scope of the invention to those skilled in the art.

[0023] The technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0024] See Figures 1-9As shown, this invention proposes an environmentally friendly dust suppression spraying device for high-speed railway bridge construction, including a telescopic base 1, with a top seat 2 fixed to the top of the telescopic base 1. The telescopic base 1 consists of a fixed base and an adjustable telescopic component. The telescopic component can be a manual or electric telescopic rod to adjust the height of the top seat 2 according to the dust suppression needs of the construction site. The bottom of the top seat 2 can be equipped with casters for easy movement of the dust suppression spraying device, and can also be equipped with a locking structure. This structure can be either foot-operated or manually tightened. When the device is moved to the designated working position, the operator can easily lock it, firmly fixing the device to the ground and ensuring the accuracy and safety of the spraying operation. The top seat 2 is vertically installed on the top of the telescopic component. A rotating seat 4 is installed at the end. Multiple guide seats 5 are arranged in a ring array on the outer circumference of the rotating seat 4. The axial cavity of the guide seat 5 is provided with a retractable first atomizing element 6. The first atomizing element 6 includes a first nozzle 61 and a first water delivery hose 63. The first nozzle 61 slides into the cavity of the guide seat 5, and multiple first nozzles 62 are installed on the first nozzle 61. The multiple first nozzles 62 are preferably distributed at equal intervals along the length of the first nozzle 61. The spray direction of each first nozzle 62 is towards the side away from the rotating seat 4. One end of the first water delivery hose 63 is sealed to the water inlet end of the first nozzle 61, and the other end is sealed to the end of the rotating tube 9. A water guiding channel is provided in the top seat 2, and a rotating tube 9 is provided between the rotating seat 4 and the top seat 2.

[0025] In addition, it also includes a second atomizing element 7, a water flow rotation assembly 8, and a telescopic adjustment assembly 10. The water flow rotation assembly 8 includes an impact blade 81 and a linkage. The impact blade 81 is rotatably disposed in the water guide channel. The linkage is connected between the rotating tube 9 and the impact blade 81. The water flow drives the impact blade 81 to rotate, so as to drive the rotating tube 9 to rotate synchronously through the linkage. The rotation speed of the rotating tube 9 increases with the increase of the water flow velocity. The second atomizing element 7 is disposed on the front side of the guide seat 5. The telescopic adjustment assembly 10 is connected between the first atomizing element 6 and the second atomizing element 7. When the first atomizing element 6 slides outward along the guide seat 5 under the action of the centrifugal force generated by the rotation of the rotating seat 4 to increase the atomization range, it moves closer to the center. The amount of atomization in the area will decrease significantly due to the outward movement of the first atomizing element 6 and the increase of centrifugal force. If it is not replenished in time, an imbalance will be formed with "sufficient atomization on the periphery and a lack of atomization in the center", resulting in some construction dust not being effectively treated and directly affecting the dust suppression effect. Therefore, when the first atomizing element 6 slides outward under the action of centrifugal force, it will apply a reverse force to the second atomizing element 7 through the linkage of the telescopic adjustment component 10. The second atomizing element 7 will slide inward synchronously along the guide seat 5. This synchronous movement of outward expansion and inward contraction allows the second atomizing element 7 to fill the atomization gap in the central area left by the outward movement of the first atomizing element 6, reduce atomization dead angles, and improve the overall atomization dust suppression effect.

[0026] Among them, see Figure 1 and Figure 2 As shown, the guide seat 5 is fixed on the rotating seat 4, and the top seat 2 is provided with a water cavity 21. A water pipe 22 is fixed in the water cavity 21. The impact blade 81 is rotatably installed in the water pipe 22, and the water cavity 21 is connected to a water supply pipe 3. The water supply pipe 3 is a flexible hose, and its length is set as needed. The water supply pipe 3 is used to connect to an external water pump or the water outlet pipe of the water pump, and the dust suppression water is delivered to the water cavity 21 through the water supply pipe 3.

[0027] See Figure 2 and Figure 3 As shown, the linkage includes a first bevel gear 82 and a second bevel gear 83. The first bevel gear 82 is connected to the end of the rotating shaft of the impact blade 81. The second bevel gear 83 is meshed with the first bevel gear 82, and a connecting rod 84 parallel to the rotating tube 9 is connected to the second bevel gear 83. A spur gear 85 is installed outside the connecting rod 84, and a toothed ring 86 is fixed outside the rotating tube 9. The toothed ring 86 and the spur gear 85 are meshed. To ensure the stability of the rotation of the rotating tube 9, two spur gears 85 and two toothed rings 86 can be provided. The stable rotation of the rotating tube 9 is achieved by the cooperation of two sets of spur gears 85 and toothed rings 86.

[0028] Among them, at least two guide rings 91 are provided on the outside of the rotating tube 9, and an annular groove that matches the guide rings 91 is provided in the top seat 2. Both the guide rings 91 and the annular groove are lubricated to reduce friction. Secondly, an empty groove for accommodating the linkage is provided in the top seat 2.

[0029] See Figures 1-5 as well as Figure 7 As shown, the second atomizing element 7 includes a second nozzle 71 and a second water delivery hose 73. The second nozzle 71 is slidably disposed outside the guide seat 5 along the length direction of the guide seat 5, and a plurality of second nozzles 72 are installed on the second nozzle 71. The plurality of second nozzles 72 are preferably distributed at equal intervals along the length direction of the second nozzle 71. The second water delivery hose 73 is connected between the second nozzle 71 and the first water delivery hose 63, and the water in the first water delivery hose 63 is diverted to the second nozzle 71 through the second water delivery hose 73.

[0030] Among them, see Figure 7 and Figure 9 As shown, a guide bar 74 is fixed on the side of the second nozzle 71 facing the guide seat 5. A guide groove 52 is provided on the side of the guide seat 5 facing the second nozzle 71. In the initial stage, the upper end of the guide bar 74 contacts the top of the guide groove 52, so that the second nozzle 71 will not move outward under the action of centrifugal force. The guide groove 52 has a structure that is larger inside and smaller outside, and the guide bar 74 is set accordingly to prevent the guide bar 74 from disengaging from the guide groove 52 when the second nozzle 71 moves. In addition, a ball bearing can be set in the guide groove 52 to reduce friction.

[0031] In addition, a through groove 51 is provided on the side of the guide seat 5 facing the second nozzle 71. The through groove 51 is connected to the internal cavity groove of the guide seat 5, and the top of the through groove 51 is open.

[0032] See Figure 5 as well as Figures 7-9 As shown, the telescopic adjustment assembly 10 includes a first connecting piece 101, a second connecting piece 103, and a lever-type connector. The first connecting piece 101 is fixed to the bottom end of the inner cavity of the guide seat 5, and the second connecting piece 103 is fixed to the bottom end of the first nozzle 61. A return spring 102 is connected between the first connecting piece 101 and the second connecting piece 103. The lever-type connector is connected between the second connecting piece 103 and the second nozzle 71 and is used to convert the sliding displacement of the first nozzle 61 into the reverse synchronous displacement of the second nozzle 71.

[0033] Among them, see Figure 7 and Figure 8 As shown, the lever-type connector includes a first upright 104, a second upright 106, a third upright 107, and an adjusting member 105. The first upright 104 is vertically fixed to the upper end face of the second connecting piece 103, the second upright 106 is vertically fixed to the bottom end of the through groove 51, and the third upright 107 is vertically fixed to the second nozzle 71 by a protrusion. The top end of the second upright 106 is hinged to the middle part of the adjusting member 105. The first upright 104 and the third upright 107 are respectively hinged to the two ends of the adjusting member 105, and the adjusting member 105 can extend and retract along its length to accommodate the displacement changes of the first upright 104 and the third upright 107.

[0034] For details, please refer to Figure 8 As shown, the adjusting component 105 includes a connecting block 1051 and a first connecting plate 1052 and a second connecting plate 1053 located on both sides of the connecting block 1051. A third connecting plate 1054 is integrally formed on both end faces of the connecting block 1051. The first connecting plate 1052 and the second connecting plate 1053 are provided with a sliding groove adapted to the third connecting plate 1054 at one end facing the connecting block 1051. The third connecting plate 1054 is slidably embedded in the corresponding sliding groove, forming the telescopic structure of the adjusting component 105. Both ends of the sliding groove are provided with limiting protrusions to prevent the third connecting plate 1054 from disengaging from the sliding groove. To reduce friction, a ball can be provided in the sliding groove, and the third connecting plate 1054 contacts the ball.

[0035] As described above, in practical use, as the dust-suppressing water is delivered into the water chamber 21 from the water supply pipe 3, the water flow drives the impact blade 81 to rotate. When the impact blade 81 rotates, its rotating shaft drives the first bevel gear 82 to rotate, and the first bevel gear 82 drives the meshing second bevel gear 83 to rotate. In turn, the connecting rod 84 drives the spur gear 85 to rotate, thereby realizing the rotation of the rotating pipe 9 with the gear ring 86 installed. This causes the guide seat 5 and other structures on the rotating seat 4 to rotate accordingly. The dust-suppressing water enters the rotating pipe 9 through the water pipe 22, and then is delivered to the first spray pipe 61 through each of the first water delivery hoses 63. The nozzle 62 atomizes and sprays water, while some water is sent through the second water supply hose 73 to the second spray pipe 71 and atomized and sprayed out from the second nozzle 72 to achieve atomized dust suppression during construction. The rotation power comes from the flow kinetic energy of the dust suppression water itself, without the need for additional motors or other power equipment. On the one hand, it reduces the initial investment in the purchase and installation of power equipment, and on the other hand, it reduces the electricity and maintenance costs generated by the operation of power equipment. Long-term use can effectively reduce dust suppression costs. In addition, as long as the water supply pipe 3 delivers dust suppression water, the water flow rotation component 8 will automatically start and drive the rotation pipe 9 to rotate, without the need for manual start-up.

[0036] Secondly, during the rotation of the rotating seat 4, under the action of centrifugal force, the first nozzle 61 in the guide seat 5 will slide outward to expand the atomization dust suppression range and increase the dust coverage capacity of a large space. When the first nozzle 61 slides outward, the connecting block 1051 will deflect around the hinge end of the second upright 106. Since the first connecting plate 1052 and the second connecting plate 1053 can approach or move away from the connecting block 1051, the second connecting plate 103 will drive the first upright 104 to move outward, so that the end of the first connecting plate 1052 moves outward and expands the distance with the connecting block 1051. The rise of the end of the first connecting plate 1052 will cause the end of the second connecting plate 1053 to move inward, thereby squeezing the third upright 107 and causing the second nozzle 71 to move inward, so that the second nozzle 71 is closer to the central area. Through the inward retraction of the second atomizing element 7, the atomization concentration in the central area is ensured, and the dust suppression disadvantage of effective periphery and poor central dust suppression effect is prevented.

[0037] By increasing the flow rate of the dust-falling water or reducing the size of the channel through which the dust-falling water passes through the impact blade 81 area (reducing the channel before the impact blade 81, which can be controlled by installing a valve), the flow velocity can be increased to improve the rotation speed of the impact blade 81, thereby increasing the centrifugal force of rotation to expand the atomization range. When the centrifugal force increases, the first nozzle 61 moves outward more, and the second nozzle 71 also moves inward more, thus solving the drawback of the atomization gap in the central area.

[0038] It should be noted that under centrifugal force, on the one hand, the first nozzle 61 will move outward, and on the other hand, the atomized dust-suppressing water sprayed by the first nozzle 61 will also be biased towards the direction of centrifugal force. The greater the centrifugal force, the greater the outward deviation of the atomized dust-suppressing water, which results in less atomized dust-suppressing water in the central area. By designing a second nozzle 71 that moves inward, when the atomized dust-suppressing water sprayed by the second nozzle 71 is biased towards the direction of centrifugal force, the inward position of the second nozzle 71 can greatly ensure the amount of atomized dust-suppressing water in the central area.

[0039] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have their own emphasis; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the embodiments of the present invention can be adjusted, combined, and deleted according to actual needs, and the structure in the device of the embodiments of the present invention can be combined, divided, and deleted according to actual needs.

[0040] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An environmentally friendly spray dust suppression device for high-speed railway bridge construction, comprising a telescopic base (1), a top seat (2) fixed at its top, a rotating seat (4) installed at the end of the top seat (2), a plurality of guide seats (5) arranged in a ring array on the outer circumference of the rotating seat (4), and a telescopic first atomizing element (6) provided axially on the guide seat (5), characterized in that, The top seat (2) is provided with a water guiding channel, and a rotating pipe (9) is provided between the rotating seat (4) and the top seat (2), and also includes: The water flow rotation assembly (8) includes an impact blade (81) and a linkage. The impact blade (81) is rotatably disposed in the water guide channel. The linkage is connected between the rotating pipe (9) and the impact blade (81). The impact blade (81) is driven to rotate by the water flow, so that the rotating pipe (9) is driven to rotate synchronously by the linkage. The rotation speed of the rotating pipe (9) increases with the increase of the water flow velocity. The second atomizing element (7) is located on the front side of the guide seat (5); The telescopic adjustment assembly (10) is connected between the first atomizing element (6) and the second atomizing element (7). When the first atomizing element (6) moves outward due to centrifugal force, the telescopic adjustment assembly (10) causes the second atomizing element (7) to move inward synchronously. The first atomizing element (6) includes: The first nozzle (61) is slidably fitted with the guide seat (5), and a plurality of first nozzles (62) are installed on the first nozzle (61). The first water delivery hose (63) is connected between the first nozzle (61) and the rotating pipe (9); The second atomizing element (7) includes: The second nozzle (71) is slidably disposed outside the guide seat (5) along the length direction of the guide seat (5), and a plurality of second nozzles (72) are installed on the second nozzle (71). The second water delivery hose (73) is connected between the second nozzle (71) and the first water delivery hose (63); The telescopic adjustment assembly (10) includes: A first connecting piece (101) and a second connecting piece (103) are provided. The first connecting piece (101) is fixed to the bottom end of the inner cavity of the guide seat (5), and the second connecting piece (103) is fixed to the bottom end of the first nozzle (61). A return spring (102) is connected between the first connecting piece (101) and the second connecting piece (103). A lever-type connector is connected between the second connecting piece (103) and the second nozzle (71) and is used to convert the sliding displacement of the first nozzle (61) into the reverse synchronous displacement of the second nozzle (71). The guide seat (5) is also provided with a through groove (51) on the side facing the second nozzle (71); The lever-type connector includes: The first upright (104) is vertically fixed to the upper end face of the second connecting piece (103); The second upright (106) is vertically fixed at the bottom end of the through groove (51); The third upright (107) is vertically fixed to the second nozzle (71) by a protrusion; The adjusting member (105) has the top end of the second upright (106) hinged to the middle of the adjusting member (105), the first upright (104) and the third upright (107) respectively hinged to the two ends of the adjusting member (105), and the adjusting member (105) is telescopic. The adjusting component (105) includes a connecting block (1051) and a first connecting plate (1052) and a second connecting plate (1053) located on both sides of the connecting block (1051). A third connecting plate (1054) is fixed to both ends of the connecting block (1051). The first connecting plate (1052) and the second connecting plate (1053) are both provided with a sliding groove at one end facing the connecting block (1051).

2. The environmentally friendly spray dust suppression device for high-speed railway bridge construction according to claim 1, characterized in that, The guide seat (5) is fixed on the rotating seat (4), the top seat (2) is provided with a water cavity (21), a water pipe (22) is fixed in the water cavity (21), the impact blade (81) is located in the water pipe (22), and the water cavity (21) is connected to a water supply pipe (3).

3. The environmentally friendly spray dust suppression device for high-speed railway bridge construction according to claim 1, characterized in that, The linkage component includes: The first bevel gear (82) is connected to the end of the rotating shaft of the impact blade (81); The second bevel gear (83) is meshed with the first bevel gear (82), and a connecting rod (84) parallel to the rotating tube (9) is connected to the second bevel gear (83). A spur gear (85) is mounted on the outside of the connecting rod (84); A toothed ring (86) is fixed to the outside of the rotating tube (9), and the toothed ring (86) is meshed with a spur gear (85).

4. The environmentally friendly spray dust suppression device for high-speed railway bridge construction according to claim 1, characterized in that, The second nozzle (71) has a guide bar (74) fixed on the side facing the guide seat (5), and the guide seat (5) has a guide groove (52) on the side facing the second nozzle (71).

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