Municipal road and bridge construction dust falling equipment

Abstract

The invention discloses municipal road and bridge construction dust falling equipment, and belongs to the technical field of dust falling equipment.The municipal road and bridge construction dust falling equipment comprises a moving table, a supporting bracket used for supporting the dust falling equipment is arranged at the top end of the moving table, a spray head used for dust falling is arranged at the top end of the supporting bracket, and an opening and closing device used for controlling the spraying range is assembled on the spray head; a collecting device used for collecting water flow is assembled on the spray head, and an auxiliary spraying device used for enlarging the spraying range is assembled on the spray head. The opening and closing device comprises a swing assembly and a first hydraulic bin, the swing assembly is arranged on the outer side of the spray head, and the first hydraulic bin is fixedly connected to the outer side of the spray head. Through the arrangement of the opening and closing device and cooperation with the swing device, when the spray head swings up and down, the elastic push-pull assembly changes the size of a water outlet of the spray head, so that the water mist diffusion area is changed; therefore, the problem that the dust falling range is limited due to the fact that the spraying area is fixed is solved, and the effect that the spraying area is changed along with different conditions is achieved.

Description

Technical Field

[0001] This application relates to the field of dust suppression equipment technology, and more specifically, to a dust suppression equipment for municipal road and bridge construction. Background Technology

[0002] Municipal engineering refers to various buildings, structures, and equipment that provide paid or free public goods and services to residents within the planning and construction scope of urban areas and towns. The construction of various public infrastructure supporting urban life falls under the category of municipal engineering, such as common urban roads, bridges, and subways. The construction of municipal roads and bridges is a comprehensive project that is of great significance to urban development. During the construction of municipal roads and bridges, a lot of dust is inevitably generated, causing environmental pollution, which requires dust control.

[0003] Chinese patent CN221182151U, authorized and published on June 21, 2024, discloses a dust suppression device for municipal road and bridge construction, including a dust suppression component. The dust suppression component includes a base plate, and a rotating seat is rotatably connected to the left side of the upper surface of the base plate via a bearing. A support column is welded to the upper surface of the rotating seat.

[0004] In the aforementioned application documents, it is stated that during equipment operation, the lack of adjustment equipment for the nozzles limits the dust suppression range. During bridge construction, continuous reciprocating operation is required to achieve the dust suppression effect. Additionally, the inability to adjust the nozzles during horizontal operation results in a limited water spray distance, and a large amount of water is directly washed onto the ground, reducing the dust suppression effect and prolonging the working time. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a dust suppression device for municipal road and bridge construction, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this application provides a dust suppression device for municipal road and bridge construction, including a mobile platform. The top of the mobile platform is equipped with a support bracket for supporting the dust suppression device. The top of the mobile platform is also equipped with a water tank for supplying water to the dust suppression device. The top of the support bracket is equipped with a dust suppression nozzle. The bottom of the water tank is fitted with a water pump for conveying water. The output end of the water pump is connected to the inside of the nozzle via a water pipe. The nozzle is equipped with an opening and closing device for controlling the spraying range, a water collection device for collecting the water flow, and an auxiliary spraying device for increasing the spraying range. The opening and closing device includes a swing assembly and a hydraulic chamber. The swing assembly is located on the outside of the nozzle, and the hydraulic chamber is fixedly connected to the outside of the nozzle. A hydraulic rod is slidably connected to one end of the hydraulic chamber and to the other end. A baffle is fixedly connected to the end of the hydraulic rod and to the hydraulic chamber via a spring. A ring is fixedly connected to the side of the baffle and slidably connected to the outside of the nozzle. An elastic push-pull assembly for adjusting the spray range of the nozzle is provided on the ring. By setting an opening and closing device and cooperating with the swing assembly, when the nozzle swings up and down, the elastic push-pull assembly changes the size of the nozzle outlet, thereby changing the water mist diffusion area. This solves the problem of limited dust suppression range caused by a fixed spray area, thus achieving the effect of changing the spray area according to different conditions.

[0007] Preferably, the swing assembly includes a support plate one, which is fixedly connected to the support bracket. An electric telescopic rod is fixedly connected to the top of the support plate one. A support plate two is fixedly connected to the outside of the nozzle. A slider is hinged to the top of the movable end of the electric telescopic rod. A groove is formed in the support plate two. The slider is located in the groove and is slidably connected to the groove. A baffle one is fixedly connected to the side of the support plate one, and the baffle one is located on the movement trajectory of the hydraulic rod one.

[0008] Preferably, the elastic push-pull assembly includes an L-shaped rod, which is fixedly connected to the outer side of the ring. An elastic telescopic rod is rotatably connected to the outer side of the L-shaped rod, and a fixed plate is rotatably connected to the other end of the elastic telescopic rod. A first baffle plate for controlling the size of the nozzle opening is provided at the bottom of the fixed plate, and a second baffle plate for controlling the size of the nozzle opening is provided on the outer side of the nozzle. A connecting rod for controlling the movement of the second baffle plate is provided at the top of the second baffle plate, and the connecting rod is connected to the L-shaped rod by a second spring.

[0009] Preferably, both the first baffle plate and the second baffle plate are hinged to the opening of the nozzle and are arranged in a circular array. The bottom of the nozzle opening is not provided with the first baffle plate and the second baffle plate.

[0010] Preferably, the collecting device includes a hydraulic chamber two, which is fixedly connected to the interior of the nozzle. A hydraulic rod four is slidably connected to one end of the interior of the hydraulic chamber two via a piston, and a hydraulic rod three is slidably connected to the other end of the interior of the hydraulic chamber two via a piston. A baffle four is fixedly connected to the end of the hydraulic rod three. A hydraulic chamber three is fixedly connected to the outside of the nozzle. A hydraulic rod five is slidably connected to one end of the interior of the hydraulic chamber three via a piston, and a hydraulic rod six is ​​slidably connected to the other end of the interior of the hydraulic chamber three via a piston. The end of the hydraulic rod six is ​​fixedly connected to the support bracket. Rod five is fixedly connected to the bottom end of baffle four. A through groove is provided at the bottom end of the nozzle. A collection chamber is fixedly connected inside the through groove. Baffle three is hinged to the top of the collection chamber. The outer side of baffle three is fixedly connected to hydraulic rod four. The collection chamber is connected to the water tank through a plastic hose. This application solves the problem of insufficient water resource utilization by setting up a collection device and cooperating with the opening and closing device. When the nozzle swings downward, the water accumulated in the nozzle is collected and flows back into the water bucket for reuse, thereby improving the efficiency of water resource utilization.

[0011] Preferably, the specifications of the collection chamber and the baffle three are adapted to the through groove, and the hydraulic rod four has an overall arc-shaped structure, with the through groove located on the movement trajectory of the hydraulic rod four.

[0012] Preferably, the hydraulic rod six has an overall arc-shaped structure, the baffle four has an overall semi-circular structure, and the baffle four is adapted to the opening specifications of the nozzle.

[0013] Preferably, the inertial opening and closing device includes a baffle five and an elastic push plate. An annular groove is provided on the outer side of the nozzle. The elastic push plate is fixedly connected to the outer side of the nozzle. The top of the movable end of the elastic push plate is fixedly connected to the baffle five. A limit box is fixedly connected to the top of the nozzle. A metal weight is slidably connected to one end of the limit box. A hydraulic chamber four is passed through and fixedly connected to the other end of the limit box. A hydraulic rod eight is slidably connected to one end of the hydraulic chamber four. A hydraulic rod seven is slidably connected to the other end of the hydraulic chamber four. A limit plate is fixedly connected to the top of the limit box. This application solves the problem of needing multiple dust suppressions due to the limited dust suppression range by setting an auxiliary spraying device and cooperating with the opening and closing device. When the nozzle swings upward, the auxiliary spraying device opens and expands the spraying range, thereby achieving the effect of further expanding the dust suppression range and reducing the number of dust suppressions.

[0014] Preferably, the baffle five is adapted to the specifications of the annular groove, and in the initial state, the baffle five completely covers the annular groove.

[0015] Preferably, the thrust of the elastic push plate is greater than the weight of the baffle five, and the baffle five is located on the movement trajectory of the hydraulic rod seven.

[0016] The advantages of this application are: (1) By setting up an opening and closing device and cooperating with the swinging device, when the nozzle swings up and down, the elastic push-pull component changes the size of the nozzle outlet, thereby changing the water mist diffusion area. This solves the problem of dust suppression range being limited due to fixed spraying area, and achieves the effect of spraying area changing with different conditions.

[0017] (2) This application sets up a collection device and, in conjunction with the opening and closing device, collects the water accumulated inside the nozzle when the nozzle swings downward, allowing it to flow back into the water bucket for reuse, thereby solving the problem of insufficient water resource utilization and thus achieving the effect of improving water resource utilization efficiency.

[0018] (3) By setting up an auxiliary spraying device and cooperating with the opening and closing device, when the nozzle swings upward, the auxiliary spraying device opens and expands the spraying range, thereby solving the problem of needing to perform multiple dust suppressions due to the limited dust suppression range, thus achieving the effect of further expanding the dust suppression range and reducing the number of dust suppressions. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is the present invention. Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is the present invention. Figure 2 Enlarged view of the structure at point B in the middle; Figure 5 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 6 This is the present invention. Figure 5 Enlarged view of the structure at point C; Figure 7 This is a schematic diagram of the overall structure of the present invention. Figure 3 ; Figure 8 This is the present invention. Figure 7 Enlarged view of the structure at point D; Figure 9 This is the present invention. Figure 7 Enlarged view of the structure at point E in the middle; Figure 10 This is a schematic diagram of the overall structure of the present invention. Figure 4 ; Figure 11 This is the present invention. Figure 10 Enlarged view of the structure at point F in the middle; Figure 12 This is a schematic diagram of the overall structure of the present invention. Figure 5 ; Figure 13 This is the present invention. Figure 10 Enlarged view of the structure at point G in section 2.

[0020] In the above image, 101. Mobile platform; 102. Water tank; 103. Water supply pipe; 104. Sprinkler head; 105. Water pump; 106. Support bracket; 201. Support plate one; 202. Electric telescopic rod; 203. Support plate two; 204. Slider; 205. Baffle one; 206. Hydraulic rod one; 207. Hydraulic chamber one; 208. Hydraulic rod two; 209. Baffle two; 210. Ring; 211. L-shaped rod; 212. Elastic telescopic rod; 213. Fixing plate; 214. Connecting rod; 215. Water baffle one; 216. Water baffle two; 301. Hydraulic chamber two; 302. Hydraulic rod three; 303. Hydraulic rod four; 304. Baffle three; 305. Baffle four; 306. Hydraulic chamber three; 307. Hydraulic rod five; 308. Hydraulic rod six; 309. Collection chamber; 401. Baffle 5; 402. Elastic push plate; 403. Limit box; 404. Hydraulic chamber 4; 405. Hydraulic rod 7; 406. Hydraulic rod 8; 407. Metal weight; 408. Limit plate. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0023] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0024] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0025] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Example 1, see Figures 1-8This embodiment provides a dust suppression device for municipal road and bridge construction, including a mobile platform 101. The top of the mobile platform 101 is provided with a support bracket 106 for supporting the dust suppression device. The top of the mobile platform 101 is provided with a water tank 102 for supplying water to the dust suppression device. The top of the support bracket 106 is provided with a nozzle 104 for dust suppression. The bottom of the water tank 102 is equipped with a water pump 105 for conveying water. The output end of the water pump 105 is connected to the inside of the nozzle 104 through a water pipe 103. The nozzle 104 is equipped with an opening and closing device 2 for controlling the spraying range, a collecting device for collecting water flow, and an auxiliary spraying device for increasing the spraying range. The opening and closing device includes a swing assembly and a hydraulic chamber 207. The swing assembly is located on the outside of the nozzle 104 and includes a support plate 201, which is fixedly connected to a support bracket 106. An electric telescopic rod 202 is fixedly connected to the top of the support plate 201. A second support plate 203 is fixedly connected to the outside of the nozzle 104. A slider 204 is hinged to the top of the movable end of the electric telescopic rod 202. A groove is formed in the second support plate 203, and the slider 204 is located in the groove and slidably connected to it. A baffle 205 is fixedly connected to the side of the support plate 201, and the baffle 205 is located on the movement trajectory of the hydraulic rod 206. The extension and retraction of the electric telescopic rod 202 drives the slider 204 to slide in the groove, causing the nozzle 104 to move up and down. The spray range is adjusted by swinging. A hydraulic chamber 207 is fixedly connected to the outside of the nozzle 104. A hydraulic rod 208 is slidably connected to one end of the hydraulic chamber 207 via a piston, and a hydraulic rod 206 is slidably connected to the other end of the hydraulic chamber 207 via a piston. A baffle 209 is fixedly connected to the end of the hydraulic rod 208. The baffle 209 is connected to the hydraulic chamber 207 via a spring. A ring 210 is fixedly connected to the side of the baffle 209 and slidably connected to the outside of the nozzle 104. An elastic push-pull assembly for adjusting the spray range of the nozzle 104 is provided on the ring 210. The elastic push-pull assembly includes an L-shaped rod 211, which is fixedly connected to the outside of the ring 210. The outside of the L-shaped rod 211 is rotatably connected... A flexible telescopic rod 212 is connected to the other end of which is rotatably connected to a fixed plate 213. A first baffle plate 215 for controlling the opening size of the nozzle 104 is located at the bottom of the fixed plate 213. A second baffle plate 216 for controlling the opening size of the nozzle 104 is located on the outer side of the nozzle 104. A connecting rod 214 for controlling the movement of the second baffle plate 216 is located at the top of the second baffle plate 216. The connecting rod 214 is connected to the L-shaped rod 211 via a second spring. When the nozzle 104 swings upward, the ring 210 is pushed to rotate and moves the L-shaped rod 211. The second spring pulls the second baffle plate 216 to unfold, and also unfolds the first baffle plate 215. When the nozzle 104 swings downward, the ring 210 is pulled back to its original position by the first spring. The L-shaped rod 211 is rotated and moved, causing the elastic telescopic rod 212 to push the first baffle plate 215 to retract and reset, and also causing the second baffle plate 216 to retract. Both the first baffle plate 215 and the second baffle plate 216 are hinged to the opening of the nozzle 104 and are arranged in a circular array. The bottom of the opening of the nozzle 104 is provided with the first baffle plate 215 and the second baffle plate 216. When the second baffle plate 216 is pulled up, it pulls the first baffle plate 215 up at the same time, thereby expanding the spraying range of the nozzle 104. When the first baffle plate 215 is pushed to retract, it pushes the second baffle plate 216 to reset, reducing the spraying range of the nozzle 104. This application, by setting an opening and closing device and cooperating with the swinging device, allows the nozzle 104 to swing up and down.The flexible push-pull component changes the size of the nozzle 104's outlet, altering the water mist diffusion area. This solves the problem of limited dust suppression range caused by a fixed spray area, achieving the effect of adjusting the spray area according to different conditions.

[0028] In practical use, when the movable end of the electric telescopic rod 202 moves and extends, it pushes the slider 204 to move within the groove. The slider 204 pushes the support plate 203 to tilt, and the tilting of the support plate 203 causes the nozzle 104 to move upward. At this time, the water pump 105 supplies water to the nozzle 104 through the water pipe 103, and the nozzle 104 sprays water mist. Simultaneously, the nozzle 104 causes the hydraulic chamber 207 to move downward. The downward movement of the hydraulic chamber 207 causes the hydraulic rod 206 to press against the baffle 205. 6. Pressing the baffle 205 causes the hydraulic rod 206 to retract into the hydraulic chamber 207. The retraction of the hydraulic rod 206 into the hydraulic chamber 207 extends the hydraulic rod 208, which in turn pushes the baffle 209 to move. The movement of the baffle 209 causes the ring 210 to slide around the nozzle 104. The sliding of the ring 210 causes the L-shaped rod 211 to move. The movement of the L-shaped rod 211 causes the spring 2 to pull the connecting rod 214. The connecting rod 214 is pulled upwards, causing the baffle 216 to move and unfold, thus blocking the water. Plate 216 pushes the baffle plate 215 to unfold, expanding the spray area of ​​nozzle 104. When the movable end of the electric telescopic rod 202 moves and retracts, it pulls the slider 204 to move within the groove. The slider 204 pulls the support plate 203 to tilt, causing the support plate 203 to tilt and drive the nozzle 104 to move downward. At this time, the nozzle 104 drives the hydraulic chamber 207 to move upward. As the hydraulic chamber 207 moves upward, spring 1 pulls the baffle plate 209 to reset. The baffle plate 209 retracts and drives the ring 210 to rotate, as well as the hydraulic rod 215 to rotate. 08 retracts, and as hydraulic rod 208 retracts into hydraulic chamber 207, hydraulic rod 206 extends to reset. Ring 210 slides, causing L-shaped rod 211 to move and reset. The movement of L-shaped rod 211 causes elastic telescopic rod 212 to reset. Elastic telescopic rod 212 pushes fixed plate 213 down, and fixed plate 213 presses down on baffle 215, causing it to retract inward. Baffle 215 presses baffle 216 inward, causing the spraying area of ​​nozzle 104 to shrink, while the spraying distance increases, allowing for dust suppression further ahead.

[0029] Example 2, see Figures 1-11The collection device includes a hydraulic chamber 2 301, which is fixedly connected to the inside of the nozzle 104. A hydraulic rod 4 303 is slidably connected to one end of the hydraulic chamber 2 301 by a piston, and a hydraulic rod 302 is slidably connected to the other end of the hydraulic chamber 2 301 by a piston. A baffle 4 305 is fixedly connected to the end of the hydraulic rod 302. A hydraulic chamber 3 306 is fixedly connected to the outside of the nozzle 104. A hydraulic rod 5 307 is slidably connected to one end of the hydraulic chamber 3 306 by a piston, and a hydraulic rod 6 307 is slidably connected to the other end of the hydraulic chamber 3 306 by a piston. 08. The end of hydraulic rod 6 308 is fixedly connected to support bracket 106. Hydraulic rod 6 308 has an overall arc-shaped structure. Baffle 4 305 has an overall semi-circular structure and is adapted to the opening specifications of nozzle 104. When nozzle 104 swings downward, baffle 4 305 rises and blocks the lower part of nozzle 104, preventing unsprayed water from flowing out and being wasted. When nozzle 104 swings upward, baffle 4 305 falls, without affecting the spraying operation of nozzle 104. Hydraulic rod 5 307 is fixedly connected to the bottom end of baffle 4 305. Next, a through groove is provided at the bottom of the nozzle 104, and a collection chamber 309 is fixedly connected inside the through groove. A baffle 304 is hinged to the top of the collection chamber 309. The outer side of the baffle 304 is fixedly connected to the hydraulic rod 303. The collection chamber 309 is connected to the water tank 102 through a plastic hose. The specifications of the collection chamber 309 and the baffle 304 are adapted to the through groove, and the hydraulic rod 303 has an overall arc-shaped structure. The through groove is located on the movement trajectory of the hydraulic rod 303. In the initial state, when the nozzle 104 swings downward, the baffle 304 closes downward, making... The water in the water tank 102 will not flow into the nozzle 104 due to hydraulic balance. When the nozzle 104 sprays upward, the water flow in the water tank 102 decreases. At this time, the baffle 304 opens, and the water that was not sprayed out flows back into the water tank 102 through the plastic hose. This application solves the problem of insufficient water resource utilization by setting up a collection device and cooperating with the opening and closing device. When the nozzle 104 swings downward, the water accumulated in the nozzle 104 is collected and flows back into the water bucket 102 for reuse. This achieves the effect of improving the efficiency of water resource utilization.

[0030] In specific use, this embodiment, based on embodiment one, reduces the water flow inside the water tank 102 after the nozzle 104 sprays upwards. When the nozzle 104 swings downwards, the hydraulic chamber 306 moves downwards with the nozzle 104, causing the hydraulic rod 308 to be pressed by the support bracket 106 and retract. After the hydraulic rod 308 retracts, the hydraulic rod 307 extends, pushing the baffle 4 305 to stand up and block the lower side of the nozzle 104, preventing the unsprayed water from flowing directly downwards. When the nozzle 104 is connected to the outlet, and the nozzle 104 swings upward again, the hydraulic chamber 306 moves away from the support bracket 106. The support bracket 106 pulls out the hydraulic rod 6 308 and retracts the hydraulic rod 5 307. The hydraulic rod 5 307 pulls the baffle 4 305 to reset. At the same time, the baffle 4 305 pulls the hydraulic rod 3 302 to extend. The hydraulic rod 3 302 extends out from the hydraulic chamber 2 301 and retracts the hydraulic rod 4 303. The hydraulic rod 4 303 pulls the baffle 3 304 to open. At this time, the water that has not been sprayed out enters the collection chamber 309 and flows back to the water tank 102 through the plastic hose.

[0031] Example 3, see Figures 1-13This embodiment, based on Embodiment 1, includes an inertial opening and closing device comprising a baffle 401 and an elastic push plate 402. An annular groove is formed on the outer side of the nozzle 104. The elastic push plate 402 is fixedly connected to the outer side of the nozzle 104. The top of the movable end of the elastic push plate 402 is fixedly connected to the baffle 401. The baffle 401 is compatible with the specifications of the annular groove, and in the initial state, the baffle 401 completely covers the annular groove. When the nozzle 104 swings upward, the baffle 401 moves downward, exposing the annular groove. Water mist inside the nozzle 104 is sprayed out through the annular groove, increasing the spraying area. A limit box 403 is fixedly connected to the top of the nozzle 104. A metal weight 407 is slidably connected to one end of the limit box 403. A hydraulic chamber 404 is passed through and fixedly connected to the other end of the limit box 403. A hydraulic rod 406 is slidably connected to one end of the hydraulic chamber 404. The piston at the other end of 404 is slidably connected to a hydraulic rod 405. The thrust of the elastic push plate 402 is greater than the weight of the baffle 401. The baffle 401 is located on the movement trajectory of the hydraulic rod 405. In the initial state, when the metal weight 407 does not press the hydraulic rod 406, the support rod of the elastic push plate 402 will push the baffle 401 to continuously cover the annular groove. When the metal weight 407 pushes the hydraulic rod 406, the hydraulic rod 405 pushes the baffle 401 down to expose the annular groove. The top of the limiting box 403 is fixedly connected to a limiting plate 408. This application sets an auxiliary spraying device and, in cooperation with the opening and closing device, opens and expands the spraying range when the nozzle 104 swings upward, thereby solving the problem of needing multiple dust suppressions due to the limited dust suppression range, thus achieving the effect of further expanding the dust suppression range and reducing the number of dust suppressions.

[0032] In specific use, this embodiment, based on Embodiment 1, involves the following: when the nozzle 104 swings upward, the metal weight 407 slides within the limiting box 403. The metal weight 407 slides downward and presses down on the hydraulic rod 406. The hydraulic rod 406 retracts into the hydraulic chamber 404 under pressure. The retraction of the hydraulic rod 406 into the hydraulic chamber 404 pushes the hydraulic rod 405 outward, pushing the baffle 401. The baffle 401 pushes the support rod of the elastic push plate 402, retracting the elastic push plate 402. The baffle 401 moves, exposing the annular groove. At this time, a portion of the water mist inside the nozzle 104 is sprayed out through the annular groove, further... To increase the spraying area, when the nozzle 104 swings downward, the metal weight 407 no longer presses the hydraulic rod 406. At the same time, the elastic push plate 402 pushes the baffle 401 to reset and move. The baffle 401 moves and covers the annular groove. The baffle 401 pushes the hydraulic rod 405 to retract the hydraulic chamber 404. The hydraulic rod 405 retracts the hydraulic chamber 404 and extends the hydraulic rod 406. The extension of the hydraulic rod 406 pushes the metal weight 407 to reset. During the movement of the metal weight 407, the limiting plate 408 limits and protects the metal weight 407, so that the metal weight 407 will not fall out of the limiting box 403.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dust suppression device for municipal road and bridge construction, comprising a mobile platform, characterized in that, The top of the mobile platform is equipped with a support bracket for supporting the dust suppression equipment. The top of the mobile platform is also equipped with a water tank for supplying water to the dust suppression equipment. The top of the support bracket is equipped with a nozzle for dust suppression. The bottom of the water tank is equipped with a water pump for conveying water. The output end of the water pump is connected to the inside of the nozzle through a water supply pipe. The nozzle is equipped with an opening and closing device for controlling the spray range, a collection device for collecting water flow, and an auxiliary spraying device for increasing the spray range. The opening and closing device includes a swing assembly and a hydraulic chamber. The swing assembly is located on the outside of the nozzle. The hydraulic chamber is fixedly connected to the outside of the nozzle. A hydraulic rod is slidably connected to one end of the interior of the hydraulic chamber and to the other end. A baffle is fixedly connected to the end of the hydraulic rod. The baffle is connected to the hydraulic chamber via a spring. A ring is fixedly connected to the side of the baffle and slidably connected to the outside of the nozzle. An elastic push-pull assembly for adjusting the spray range of the nozzle is provided on the ring.

2. The dust suppression equipment for municipal road and bridge construction according to claim 1, characterized in that, The swing assembly includes a support plate one, which is fixedly connected to the support bracket. An electric telescopic rod is fixedly connected to the top of the support plate one. A support plate two is fixedly connected to the outside of the nozzle. A slider is hinged to the top of the movable end of the electric telescopic rod. A groove is opened in the support plate two. The slider is located in the groove and is slidably connected to the groove. A baffle one is fixedly connected to the side of the support plate one, and the baffle one is located on the movement trajectory of the hydraulic rod one.

3. The dust suppression equipment for municipal road and bridge construction according to claim 1, characterized in that, The elastic push-pull assembly includes an L-shaped rod, which is fixedly connected to the outer side of the ring. An elastic telescopic rod is rotatably connected to the outer side of the L-shaped rod, and a fixed plate is rotatably connected to the other end of the elastic telescopic rod. A water baffle plate is provided at the bottom of the fixed plate to control the size of the nozzle opening, and a water baffle plate is provided at the outer side of the nozzle to control the size of the nozzle opening. A connecting rod is provided at the top of the water baffle plate to control its movement, and the connecting rod is connected to the L-shaped rod by a spring.

4. The dust suppression equipment for municipal road and bridge construction according to claim 1, characterized in that, Both the first and the second water baffles are hinged to the opening of the nozzle and are arranged in a ring array. The bottom of the nozzle opening is not provided with the first and the second water baffles.

5. A dust suppression device for municipal road and bridge construction according to claim 1, characterized in that, The collection device includes a hydraulic chamber two, which is fixedly connected to the inside of the nozzle. A hydraulic rod four is slidably connected to one end of the interior of the hydraulic chamber two, and a hydraulic rod three is slidably connected to the other end of the interior of the hydraulic chamber two. A baffle four is fixedly connected to the end of the hydraulic rod three. The outside of the nozzle is fixedly connected to the hydraulic chamber three. A hydraulic rod five is slidably connected to one end of the interior of the hydraulic chamber three, and a hydraulic rod six is ​​slidably connected to the other end of the interior of the hydraulic chamber three. The end of the hydraulic rod six is ​​fixedly connected to the support bracket. The hydraulic rod five is fixedly connected to the bottom end of the baffle four. A through groove is formed at the bottom of the nozzle, and a collection chamber is fixedly connected inside the through groove. A baffle three is hinged to the top of the collection chamber, and the outside of the baffle three is fixedly connected to the hydraulic rod four. The collection chamber is connected to the water tank via a plastic hose.

6. A dust suppression device for municipal road and bridge construction according to claim 5, characterized in that, The specifications of the collection chamber and the baffle three are adapted to the through groove, and the hydraulic rod four has an overall arc-shaped structure, with the through groove located on the movement trajectory of the hydraulic rod four.

7. A dust suppression device for municipal road and bridge construction according to claim 5, characterized in that, The hydraulic rod six has an overall arc-shaped structure, and the baffle four has an overall semi-circular structure, and the baffle four is adapted to the opening specifications of the nozzle.

8. A dust suppression device for municipal road and bridge construction according to claim 1, characterized in that, The inertial opening and closing device includes a baffle five and an elastic push plate. An annular groove is provided on the outer side of the nozzle. The elastic push plate is fixedly connected to the outer side of the nozzle. The top of the movable end of the elastic push plate is fixedly connected to the baffle five. A limit box is fixedly connected to the top of the nozzle. A metal weight is slidably connected to one end of the limit box. A hydraulic chamber four is passed through and fixedly connected to the other end of the limit box. A hydraulic rod eight is slidably connected to one end of the hydraulic chamber four. A hydraulic rod seven is slidably connected to the other end of the hydraulic chamber four. A limit plate is fixedly connected to the top of the limit box.

9. A dust suppression device for municipal road and bridge construction according to claim 8, characterized in that, The baffle five is adapted to the specifications of the annular groove, and in the initial state, the baffle five completely covers the annular groove.

10. A dust suppression device for municipal road and bridge construction according to claim 8, characterized in that, The thrust of the elastic push plate is greater than the weight of the baffle five, and the baffle five is located on the movement trajectory of the hydraulic rod seven.

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