Environment-friendly dust falling device for road construction

Abstract

The application relates to an environment-friendly dust falling device for road construction, and relates to the technical field of environment-friendly devices, which comprises a base plate, a plurality of moving wheels fixed on the bottom surface of the base plate, a water storage tank installed on the top surface of the base plate, two supporting arms fixed on one side of the water storage tank, a traction handle installed on the top surface of the base plate, a supporting rod rotatably installed on the top surface of the two supporting arms, a limiting piece arranged above the base plate and used for locking the supporting rod in an unfolded state, a water spraying pipe fixed on the supporting rod, and a connecting hose connected to the end portions of the two water spraying pipes which are close to each other. A water pump is arranged outside the water storage tank, and the other ends of the two connecting hoses are connected to the water pump. When the device is transported or stored in a warehouse, the supporting rod is turned to a storage state, so that the transportation space is effectively saved. When dust falling operation is needed, the supporting rod is turned to an unfolded state coaxial with the traction handle and perpendicular to the traction handle, so that normal dust falling operation can be performed.

Description

Technical Field

[0001] This application relates to the technical field of environmental protection devices, and in particular to an environmentally friendly dust suppression device for road construction. Background Technology

[0002] Against the backdrop of continuous infrastructure construction in my country, the road construction market system is gradually improving. As a key infrastructure supporting national economic development, the construction quality and efficiency of roads directly affect the efficiency of social and economic operations. During road construction, dust pollution not only damages the surrounding ecological environment but also threatens the health of construction workers. Therefore, dust suppression has become a crucial aspect of road construction. To meet the needs of dust suppression during construction, various dust suppression devices have emerged. Among them, portable dust suppression devices suitable for small road sections are increasingly widely used in small-scale road construction scenarios due to their high flexibility and ease of operation, providing important support for ensuring that the construction environment meets standards. In related technologies, a dust suppression device suitable for small road sections includes a support plate, an atomizing nozzle, four casters fixed to the bottom surface of the support plate, and a water tank installed on the top surface of the support plate. The atomizing nozzle is fixed to the top surface of the support plate by a support frame. To ensure the dust suppression effect, the length of the atomizing nozzle is designed to be greater than the length to the support plate. A water pump is provided on one side of the water tank, and the water inlet end of the atomizing nozzle is connected to the water pump. After the support plate is pushed to the area where dust suppression is required, the water pump is used to draw water from the water tank and supply it to the atomizing nozzle, which is then sprayed onto the road surface from the atomizing nozzle.

[0003] During the factory shipping phase, the atomizing nozzle is fixedly installed and its length exceeds the support plate, making it impossible to compactly store the entire device. This requires more shipping space, which not only increases the limit on the number of goods that can be transported at one time but also indirectly increases transportation costs. When the device is stored in the warehouse after it is no longer in use, the longer atomizing nozzle will also cause the device to occupy more storage space, reducing the space utilization rate of the warehouse and thus increasing the storage cost of the equipment. There is room for improvement. Summary of the Invention

[0004] The purpose of this application is to provide an environmentally friendly dust suppression device for road construction, which solves the problem in the above-mentioned related technologies that the device is large in size when it is shipped out of the factory or put into storage after being taken out of use, resulting in high transportation and storage costs.

[0005] The environmentally friendly dust suppression device for road construction provided in this application adopts the following technical solution: An environmentally friendly dust suppression device for road construction includes a base plate and several movable wheels fixed to the bottom surface of the base plate. A water storage tank is installed on the top surface of the base plate, and two support arms are fixed on one side of the water storage tank. A traction handle is installed on the edge of the top surface of the base plate away from the support arms. Support rods are rotatably installed on the top surfaces of the two support arms in the horizontal direction. The two support rods can rotate in opposite directions in the horizontal plane to a retracted state where they are parallel to each other and located above the water storage tank, and rotate in opposite directions to an extended state where they are coaxial and perpendicular to the traction handle. A limiting member is provided above the base plate to lock the extended state of the support rods. When the support rods are in the extended state, a water spray pipe is fixed along its own length on the side away from the traction handle. The ends of the two water spray pipes that are close to each other at this time are connected to connecting hoses. A water pump is provided outside the water storage tank, and the other ends of the two connecting hoses are connected to the water pump.

[0006] By adopting the above technical solution, when transporting goods out of the factory or storing them in the warehouse, the support rods are rotated to a parallel, above-the-water-tank retracted state, greatly reducing the overall size of the device, effectively saving transportation space, increasing the amount of goods transported at one time, reducing transportation costs, and simultaneously reducing warehouse space occupation, improving warehouse space utilization, and lowering equipment storage costs. When dust suppression is required, the support rods are rotated to a coaxial, perpendicular-to-the-traction-handle extended state and locked by limiting components. At this time, the water spray pipes on the support rods are connected to the water pump through connecting hoses, allowing for normal dust suppression operations. The device has an ingenious structural design that balances the convenience of transportation and storage with its functional use.

[0007] Optionally, the limiting member is an elastic limiting rod whose lower end is rotatably connected to the top surface of the substrate. The elastic limiting rod is a telescopic rod whose length can be elastically extended. The elastic limiting rod can be rotated to a vertical support state away from the traction handle and to a horizontal placement state towards the traction handle. A limiting block is fixed at the upper end of the elastic limiting rod, and a limiting notch is formed on the side of the limiting block away from the elastic limiting rod. When the elastic limiting rod is rotated to the vertical state and the support rod is in the extended state, the limiting block is located below the support rod, so that the lower part of the support rod is engaged in the limiting notch.

[0008] By adopting the above technical solution, when the support rod is in the extended state, rotating the elastic limiting rod to the vertical support state allows the lower part of the support rod to engage with the limiting notch on the limiting block, effectively locking the support rod and preventing it from shaking or rotating accidentally, thus ensuring the stability of the device during use. When not in use, the elastic limiting rod can be rotated to a horizontal position, without occupying additional space.

[0009] Optionally, the lower part of the traction handle is rotatably connected to the top surface of the substrate. The traction handle can be rotated to a vertically upward state towards the water tank and to an inclined state away from the water tank. A locking member is provided on the top surface of the substrate to fix the traction handle in the inclined state. A fixing block is fixedly provided at the lower part of the traction handle. A fixing groove is opened on the top surface of the fixing block. A fixing slot is opened on the inner wall of the fixing groove away from the water tank. When the elastic limiting rod is in a horizontal position, the lower part of the limiting block can be inserted into the fixing groove and is squeezed into the fixing slot under the pressure of the elastic limiting rod.

[0010] By adopting the above technical solution, when the elastic limiting rod is in a horizontal position, its lower limiting block can be inserted into the fixing groove of the lower fixing block of the traction handle, and snap into the fixing slot under elastic compression. This design not only further optimizes the spatial layout when the device is stored, making the components tightly integrated and reducing clutter, but also enhances the stability between the components in the stored state, preventing the components from shaking or shifting during transportation or storage, and ensuring the integrity and safety of the overall structure of the device.

[0011] Optionally, the locking element is an elastic locking rod fixed vertically on the top surface of the substrate. The elastic locking rod is a telescopic rod whose length can be elastically shortened. A locking block is vertically fixed on the top surface of the elastic locking rod, and a locking notch is opened on the bottom surface of the locking block. A locking crossbar is fixed horizontally on the traction handle, and the locking crossbar can be engaged into the locking notch when the traction handle is in an inclined state.

[0012] By adopting the above technical solution, when the traction handle is turned to the tilted state, the locking notch on the locking block of the elastic locking rod can accurately lock the locking crossbar on the traction handle to achieve a stable lock, prevent the traction handle from shaking or rotating accidentally, and ensure the stability of the device during transportation or storage.

[0013] Optionally, the water tank is slidably mounted on the top surface of the substrate, and the water tank can slide back and forth towards the traction handle; the substrate is provided with connecting rods at both ends that are rotatably connected to the outer peripheral surface of the traction handle and the water tank, respectively. When the traction handle is in an inclined state, it drives the water tank to slide away from the support arm, and when it is in a vertical state, it drives the water tank to slide back to its original position.

[0014] By adopting the above technical solution, when the traction handle is in an inclined state, it can drive the water tank to slide away from the support arm, balance the center of gravity of the whole device, and improve the stability during application; when the traction handle is turned to a vertical state, it drives the water tank to slide back to its original position.

[0015] Optionally, the water tank is fixed with positioning rods on both sides facing the elastic limiting rod, and the length direction of the positioning rods is parallel to the sliding direction of the water tank; a positioning block is fixed at the end of the positioning rod away from the water tank, located on the side of the elastic limiting rod away from the traction handle; a protruding block is fixed at the lower part of the elastic limiting rod, and the protruding block has a positioning notch on the side facing the positioning block when the elastic limiting rod is in a vertical state; the positioning block can slide with the water tank and be inserted into the positioning notch when the traction handle is in an inclined state and the elastic limiting rod is in a vertical state.

[0016] By adopting the above technical solution, when the traction handle is tilted and the elastic limit rod is vertical, the positioning block slides into the positioning notch with the water tank, which can play an auxiliary positioning and support role for the elastic limit rod, enhance its stability in the vertical state, prevent shaking, and ensure the limiting effect on the support rod.

[0017] Optionally, a receiving cavity is provided on the upper part of the traction handle facing the water storage tank. A protective curtain is provided on the upper part of the base plate, with one side fixedly connected to the inner wall of the receiving cavity, and a cover plate is fixedly provided on the other side of the protective curtain. A support notch is provided on the top surface of the support rod. When the traction handle is in an inclined state, the protective curtain is retracted into the receiving cavity, and the cover plate can be detached and snapped onto the edge of the opening of the receiving cavity at this time. When the traction handle is in a vertical state and the support rod is in a retracted state, the cover plate can be removed from the edge of the receiving cavity and snapped into the support notch, and the protective curtain protects the top of the water storage tank at this time.

[0018] By adopting the above technical solution, when the traction handle is tilted, the protective curtain is stored in the receiving cavity, and the cover plate can be detached and clipped onto the edge, saving space and maintaining a neat structure. When the traction handle is vertical and the support rod is retracted, the cover plate can be removed and clipped into the support notch, and the protective curtain unfolds to protect the water tank from dust, debris, and other contaminants falling into the tank, thus protecting the water quality and the internal structure of the device. This design allows for flexible switching of the protective curtain state according to different device states, balancing convenient storage with protective functions during use, thereby improving the practicality and durability of the device.

[0019] Optionally, the opening edge of the receiving cavity is provided with a receiving groove for inserting a cover plate, the outer side of the cover plate is provided with an elastic snap-fit ​​element, and the inner wall of the receiving groove is provided with a positioning groove for the elastic snap-fit ​​element to snap into.

[0020] By adopting the above technical solution, when the cover plate is inserted into the receiving groove, the elastic snap-fit ​​component engages with the positioning groove, achieving a stable connection between the cover plate and the receiving cavity, preventing the cover plate from accidentally falling off, and ensuring the stability of the protective curtain in its retracted or unfolded state. At the same time, the elastic snap-fit ​​component has a certain degree of elasticity, making it convenient to install and remove the cover plate; only appropriate external force is required to complete the process. This ensures both the reliability of the connection and ease of use, improving the rationality and practicality of the overall device structural design.

[0021] Optionally, a traction ring is fixed on the side of the cover plate away from the traction handle.

[0022] By adopting the above technical solution, when it is necessary to remove or install the cover plate, simply hold the traction ring and apply force. The operation is simple and labor-saving, avoiding the inconvenience of directly prying with your hands, and improving the user experience and the operating efficiency of the device.

[0023] Optionally, a guide slope is provided at the opening edge of the support notch.

[0024] By adopting the above technical solution, when the cover plate is inserted into the support notch, the guiding slope can play a guiding role, so that the cover plate can be inserted more smoothly and accurately, reducing jamming and deviation, reducing the difficulty of operation, improving the installation efficiency, and at the same time avoiding damage to the cover plate and support notch caused by forced insertion.

[0025] In summary, this application includes the following beneficial technical effects: When shipping from the factory or storing in the warehouse, the support rods are rotated in opposite directions to a parallel, above-the-water-tank retracted position. This significantly reduces the overall size of the device, effectively saving transportation space, increasing the quantity of goods transported per trip, and lowering transportation costs. Simultaneously, it reduces storage space occupancy, improves warehouse space utilization, and lowers equipment storage costs. When dust suppression is required, the support rods are rotated in opposite directions to a coaxial, perpendicular position to the traction handle, and locked by the limiting device. At this point, the water spray pipes on the support rods are connected to the water pump via connecting hoses, allowing for normal dust suppression operations. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a structural schematic diagram illustrating the support rod in its retracted state according to an embodiment of this application; Figure 3 This is an exploded structural diagram illustrating the installation and distribution of the water spray assembly and support assembly according to an embodiment of this application; Figure 4 This is a partial cross-sectional view of the installation and fit of the elastic limiting rod in an embodiment of this application; Figure 5This is a partial structural diagram illustrating the elastic limiting rod when it is rotated to a horizontal position according to an embodiment of this application; Figure 6 This is a partial cross-sectional view of the structure of the embodiment of this application when the elastic limiting rod is rotated to a horizontal position; Figure 7 This is a partial cross-sectional view of an embodiment of the present application illustrating the insertion and mating of the positioning block and the positioning notch; Figure 8 This is a schematic diagram illustrating the installation and mating of the positioning block in an embodiment of this application; Figure 9 This is a partial cross-sectional structural diagram illustrating the installation and coordination of the protective curtain in an embodiment of this application; Figure 10 yes Figure 9 An enlarged schematic diagram of part A in the middle; Figure 11 This is a partial cross-sectional structural diagram illustrating the installation and coordination of the protective curtain in an embodiment of this application; Figure 12 yes Figure 11 Enlarged diagram of part B.

[0027] In the diagram, 1. Base plate; 11. Moving wheel; 12. Connecting rod; 13. Positioning rod; 14. Positioning block; 2. Water spray assembly; 21. Water tank; 22. Water pump; 23. Water spray pipe; 24. Connecting hose; 3. Support assembly; 31. Support arm; 32. Support rod; 321. Support notch; 322. Guide slope; 4. Traction handle; 41. Fixing block; 411. Fixing groove; 412. Fixing slot; 42. Locking crossbar; 43. Receiving cavity; 431. Receiving sink; 432. Positioning groove; 5. Limiting component; 51. Elastic limiting rod; 52. Limiting block; 521. Limiting notch; 53. Protruding block; 531. Positioning notch; 6. Locking component; 61. Elastic locking rod; 62. Locking block; 621. Locking notch; 7. Elastic snap-fit ​​component; 71. Compression spring; 72. Arc-shaped protrusion; 8. Protective curtain; 9. Cover plate; 91. Placement slot; 92. Traction ring. Detailed Implementation

[0028] The present application will be further described in detail below with reference to all the accompanying drawings.

[0029] Example: Reference Figure 1 and Figure 2An environmentally friendly dust suppression device for road construction includes a base plate 1, a water spraying assembly 2, a support assembly 3, and four movable wheels 11 fixed on the bottom surface of the base plate 1. The water spraying assembly 2 includes a water storage tank 21 fixed on the top surface of the base plate 1 and a water pump 22 fixed outside the water storage tank 21. The support assembly 3 includes two support arms 31 fixed on one side of the water storage tank 21. A traction handle 4 is installed on the edge of the top surface of the base plate 1 away from the support arms 31. Support rods 32 are rotatably mounted on the top surface of the two support arms 31 in the horizontal direction. The two support rods 32 can rotate towards each other in the horizontal plane to a retracted state where they are parallel to each other and located above the water storage tank 21, and rotate away from each other to an unfolded state where they are coaxial and perpendicular to the traction handle 4. A limiting member 5 is provided above the base plate 1 to lock the unfolded state of the support rods 32. When the support rods 32 are in the unfolded state, a water spray pipe 23 is fixed on the side away from the traction handle 4 along its own length direction. The ends of the two water spray pipes 23 that are close to each other at this time are connected to connecting hoses 24. The other ends of the two connecting hoses 24 are connected to the water pump 22. When the dust suppression device is in use, the support rod 32 is rotated to the unfolded state, and then the base plate 1 is moved by the traction handle 4. The water pump 22 is started to inject the water in the water storage tank 21 into the water spray pipe 23 through the connecting hose 24, and finally sprayed out from the spray nozzle on the water spray pipe 23. When the dust suppression device is transported or stopped, the support rod 32 is rotated to the storage state to reduce the overall volume.

[0030] Reference Figure 3 and Figure 4 The limiting member 5 is an elastic limiting rod 51 whose lower end is rotatably connected to the top surface of the substrate 1. The elastic limiting rod 51 is a telescopic rod whose length can be elastically extended. This is a conventional elastic telescopic structure, which will not be described in detail here. The elastic limiting rod 51 can be rotated to a vertical support state away from the traction handle 4 and to a horizontal placement state towards the traction handle 4. A limiting block 52 is fixed at the upper end of the elastic limiting rod 51. A limiting notch 521 is opened on the side of the limiting block 52 away from the elastic limiting rod 51. When the elastic limiting rod 51 is rotated to the vertical state and the support rod 32 is in the unfolded state, the limiting block 52 is located below the support rod 32, and due to the elastic compression of the elastic limiting rod 51, the lower part of the support rod 32 is inserted into the limiting notch 521, thereby limiting the unfolded state of the support rod 32.

[0031] Reference Figure 5 and Figure 6The lower part of the traction handle 4 is rotatably connected to the top surface of the base plate 1. The traction handle 4 can be rotated to a vertically upward state in the direction close to the water tank 21 and to an inclined state in the direction away from the water tank 21. A fixing block 41 is fixedly provided at the lower part of the traction handle 4. A fixing groove 411 is provided on the top surface of the fixing block 41. A fixing slot 412 is provided on the inner wall of the fixing groove 411 away from the water tank 21. The top surface of the substrate 1 is provided with a locking member 6 for fixing the traction handle 4 in an inclined state; when the elastic limiting rod 51 is in a horizontal position, the lower part of the limiting block 52 can be inserted into the fixing groove 411 and squeezed into the fixing slot 412 under the pressure of the elastic limiting rod 51, so that the traction handle 4 in a vertical state can be limited and fixed by the elastic limiting rod 51 and the limiting block 52.

[0032] Reference Figure 6 and Figure 7 The locking element 6 is an elastic locking rod 61 fixed vertically on the top surface of the substrate 1. The elastic locking rod 61 is a telescopic rod whose length can be elastically shortened. This is a conventional elastic telescopic structure, which will not be described in detail here. A locking block 62 is vertically fixed on the top surface of the elastic locking rod 61, and a locking notch 621 is opened on the bottom surface of the locking block 62. A locking crossbar 42 is fixed on the traction handle 4 along the horizontal direction. When the traction handle 4 is in an inclined state, the locking block 62 is pulled up and then released, so that the locking crossbar 42 can be inserted into the locking notch 621, thereby limiting and fixing the traction handle 4 in the inclined state.

[0033] Reference Figure 7 The water tank 21 is slidably mounted on the top surface of the substrate 1. The water tank 21 can slide back and forth towards the traction handle 4. A connecting rod 12 is provided on the top of the substrate 1, with its two ends respectively rotatably connected to the outer peripheral surface of the traction handle 4 and the water tank 21. When the dust suppression device is used, the support rod 32 is rotated to the unfolded state (center of gravity shift), the traction handle 4 is adjusted to the tilted state and fixed, and the water storage tank 21 is driven to slide away from the support arm 31 through the connecting rod 12, so as to balance the center of the device. When the dust suppression device is not in use, adjust the traction handle 4 to the vertical position. At this time, the water tank 21 will be driven to slide back to its original position through the connecting rod 12. Then, rotate the support rod 32 to the storage position. At this time, one end of the support rod 32 abuts against the upper outer circumference of the traction handle 4 to improve the overall stability.

[0034] Reference Figure 7 and Figure 8Positioning rods 13 are fixed on both sides of the water tank 21 facing the elastic limiting rod 51, wherein the length direction of the positioning rods 13 is parallel to the sliding direction of the water tank 21; a positioning block 14 is fixed on the end of the positioning rod 13 away from the water tank 21, located on the side of the elastic limiting rod 51 away from the traction handle 4; a protruding block 53 is fixed on the lower part of the elastic limiting rod 51; when the elastic limiting rod 51 is in a vertical state, a positioning notch 531 is opened on the side of the protruding block 53 facing the positioning block 14; When the dust suppression device is in use, the traction handle 4 is turned to the tilted state, the support rod 32 is turned to the unfolded state, and the elastic limit rod 51 is turned to the vertical state. At this time, the positioning block 14 can slide with the water tank 21 and be inserted into the positioning notch 531 to further lock the elastic limit rod 51 in this state. When the dust suppression device is not in use, the traction handle 4 is in a vertical position. At this time, the water tank 21 and the positioning block 14 slide in opposite directions to reset, that is, the positioning block 14 is dislodged from the positioning notch 531. At this time, the elastic limit rod 51 can be pressed down and rotated to a horizontal position to limit the traction handle 4 in this state.

[0035] Reference Figure 9 and Figure 10 A receiving cavity 43 is provided on the side of the upper part of the traction handle 4 facing the water storage tank 21. A protective curtain 8 is provided on the upper part of the base plate 1, which is fixedly connected to the inner wall of the receiving cavity 43 on one side. A cover plate 9 is fixed on the other side of the protective curtain 8, and a traction ring 92 is fixed on the side of the cover plate 9 away from the traction handle 4. A support notch 321 is provided on the top surface of the support rod 32, and a guide slope 322 is provided at the opening edge of the support notch 321.

[0036] When the traction handle 4 is tilted, the protective curtain 8 is retracted into the receiving cavity 43, and the cover plate 9 can be detached and snapped onto the edge of the opening of the receiving cavity 43 to seal the opening of the receiving cavity 43; when the traction handle 4 is in the vertical position and the support rod 32 is in the retracted position, the cover plate 9 can be removed from the edge of the receiving cavity 43 and snapped into the support notch 321, and the protective curtain 8 protects the top of the water storage tank 21.

[0037] Reference Figure 11 and Figure 12 The opening edge of the receiving cavity 43 is provided with a receiving groove 431 for the cover plate 9 to be inserted. The outer side of the cover plate 9 is provided with an elastic snap-fit ​​7, and the inner wall of the receiving groove 431 is provided with a positioning groove 432 for the elastic snap-fit ​​7 to be snapped into. When the cover plate 9 seals the opening of the receiving cavity 43, the cover plate 9 is snapped into the receiving groove 431, and the elastic snap-fit ​​7 is snapped into the corresponding positioning groove 432.

[0038] The elastic snap-fit ​​component 7 includes a compression spring 71 and an arc-shaped protrusion 72. The cover plate 9 has a placement groove 91 for inserting the compression spring 71 and the arc-shaped protrusion 72. The compression spring 71 presses one side of the arc-shaped protrusion 72, causing a part of the arc-shaped protrusion 72 to protrude from the opening of the placement groove 91. The outer surface of the protruding part of the arc-shaped protrusion 72 is an arc surface, and the arc length corresponding to this arc surface is a minor arc.

[0039] The implementation principle of this application embodiment is as follows: In application, the support rod 32 is rotated to the unfolded state, and the traction handle 4 is adjusted to the tilted state. The traction handle 4 is fixed by the cooperation of the elastic locking rod 61 and the locking crossbar 42. At this time, the water tank 21 is slid away from the support arm 31 by the connecting rod 12 to balance the center of gravity of the device. At the same time, the positioning block 14 slides with the water tank 21 and inserts into the positioning notch 531 of the elastic limiting rod 51 to further lock the elastic limiting rod 51. The limiting block 52 of the elastic limiting rod 51 in the vertical state limits the support rod 32. The water pump 22 is started, and water is injected into the water spray pipe 23 through the connecting hose 24 and sprayed out from the spray nozzle to suppress dust. The protective curtain 8 is stored in the receiving cavity 43 of the traction handle 4, and the cover plate 9 is locked to the edge of the opening of the receiving cavity 43 to seal the opening.

[0040] When transporting or discontinuing use, rotate the support rod 32 to the storage position. Pull up the locking block 62 of the elastic locking rod 61 to release the traction handle 4 and adjust it to the vertical position. At this time, the water tank 21 and the positioning block 14 slide in opposite directions to reset. The positioning block 14 disengages from the positioning notch 531, and the elastic limiting rod 51 can be rotated to the horizontal position. The lower part of the limiting block 52 is inserted into the fixing groove 411 and is pressed into the fixing slot 412 by the elastic limiting rod 51, thus limiting and fixing the traction handle 4. At the same time, remove the cover plate 9 from the edge of the receiving cavity 43 and insert it into the support notch 321 of the support rod 32. The protective curtain 8 protects the top of the water tank 21 to prevent dust and other particles from falling into the water tank 21. At this time, one end of the support rod 32 abuts against the upper outer circumferential surface of the traction handle 4.

[0041] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. An environmentally friendly dust suppression device for road construction, comprising a base plate (1) and a plurality of movable wheels (11) fixedly mounted on the bottom surface of the base plate (1), wherein a water storage tank (21) is mounted on the top surface of the base plate (1), and two support arms (31) are fixedly mounted on one side of the water storage tank (21), and a traction handle (4) is mounted on the edge of the top surface of the base plate (1) away from the support arms (31); characterized in that, Support rods (32) are rotatably mounted on the top surface of the two support arms (31) in the horizontal direction; the two support rods (32) can rotate in opposite directions in the horizontal plane to a retracted state where they are parallel to each other and located above the water tank (21), and rotate in opposite directions to an unfolded state where they are coaxial and perpendicular to the traction handle (4). A limiting member (5) is provided above the base plate (1) to lock the unfolded state of the support rods (32); when the support rods (32) are in the unfolded state, a water spray pipe (23) is fixed on the side away from the traction handle (4) along its own length direction. The ends of the two water spray pipes (23) that are close to each other at this time are connected to a connecting hose (24). A water pump (22) is provided outside the water tank (21), and the other end of the two connecting hoses (24) is connected to the water pump (22). The limiting member (5) is an elastic limiting rod (51) whose lower end is rotatably connected to the top surface of the substrate (1). The elastic limiting rod (51) is a telescopic rod whose length can be elastically extended. The elastic limiting rod (51) can be rotated to a vertical support state away from the traction handle (4) and to a horizontal position towards the traction handle (4). A limiting block (52) is fixed at the upper end of the elastic limiting rod (51). A limiting notch (521) is opened on the side of the limiting block (52) away from the elastic limiting rod (51). When the elastic limiting rod (51) is rotated to the vertical state and the support rod (32) is in the unfolded state, the limiting block (52) is located below the support rod (32), so that the lower part of the support rod (32) is inserted into the limiting notch (521). The lower part of the traction handle (4) is rotatably connected to the top surface of the base plate (1). The traction handle (4) can be rotated to a vertically upward state towards the water tank (21) and to an inclined state away from the water tank (21). The top surface of the base plate (1) is provided with a locking member (6) for fixing the traction handle (4) in the inclined state. The lower part of the traction handle (4) is fixed with a fixing block (41). The top surface of the fixing block (41) is provided with a fixing groove (411). The inner wall of the fixing groove (411) away from the water tank (21) is provided with a fixing slot (412). When the elastic limiting rod (51) is in a horizontal position, the lower part of the limiting block (52) can be inserted into the fixing groove (411) and squeezed into the fixing slot (412) under the pressure of the elastic limiting rod (51). The upper part of the traction handle (4) has a receiving cavity (43) on the side facing the water storage tank (21). A protective curtain (8) is provided on the upper part of the base plate (1) and is fixedly connected to the inner wall of the receiving cavity (43) on one side. A cover plate (9) is fixed on the other side of the protective curtain (8). A support notch (321) is provided on the top surface of the support rod (32). When the traction handle (4) is in an inclined state, the protective curtain (8) is stored inside the receiving cavity (43). At this time, the cover plate (9) can be detached and snapped into the edge of the opening of the receiving cavity (43). When the traction handle (4) is in a vertical state and the support rod (32) is in a retracted state, the cover plate (9) can be taken out from the edge of the receiving cavity (43) and snapped into the support notch (321). At this time, the protective curtain (8) protects the upper part of the water storage tank (21). The water tank (21) is slidably mounted on the top surface of the base plate (1). The water tank (21) can slide back and forth towards the traction handle (4). The base plate (1) is provided with a connecting rod (12) at both ends, which are rotatably connected to the outer circumference of the traction handle (4) and the water tank (21) respectively. When the traction handle (4) is in an inclined state, it drives the water tank (21) to slide away from the support arm (31). When it is in a vertical state, it drives the water tank (21) to slide back to its original position. The water tank (21) is fixed with positioning rods (13) on both sides facing the elastic limiting rod (51). The length direction of the positioning rods (13) is parallel to the sliding direction of the water tank (21). The end of the positioning rod (13) away from the water tank (21) is fixed with a positioning block (14) located on the side of the elastic limiting rod (51) away from the traction handle (4). The lower part of the elastic limiting rod (51) is fixed with a protrusion (53). When the elastic limiting rod (51) is in a vertical state, the protrusion (53) has a positioning notch (531) on the side facing the positioning block (14). When the traction handle (4) is in an inclined state and the elastic limiting rod (51) is in a vertical state, the positioning block (14) can slide with the water tank (21) and be inserted into the positioning notch (531).

2. The environmentally friendly dust suppression device for road construction according to claim 1, characterized in that, The locking member (6) is an elastic locking rod (61) fixed vertically on the top surface of the substrate (1). The elastic locking rod (61) is a telescopic rod whose length can be elastically shortened. A locking block (62) is vertically fixed on the top surface of the elastic locking rod (61). A locking notch (621) is opened on the bottom surface of the locking block (62). A locking crossbar (42) is fixed horizontally on the traction handle (4). The locking crossbar (42) can be inserted into the locking notch (621) when the traction handle (4) is in an inclined state.

3. The environmentally friendly dust suppression device for road construction according to claim 1, characterized in that, The opening edge of the receiving cavity (43) is provided with a receiving groove (431) for inserting the cover plate (9), and the outer side of the cover plate (9) is provided with an elastic snap-fit ​​member (7). The inner wall of the receiving groove (431) is provided with a positioning groove (432) for the elastic snap-fit ​​member (7) to be snapped into.

4. The environmentally friendly dust suppression device for road construction according to claim 1, characterized in that, A traction ring (92) is fixed on the side of the cover plate (9) away from the traction handle (4).

5. The environmentally friendly dust suppression device for road construction according to claim 1, characterized in that, The support notch (321) has a guide slope (322) at the opening edge.

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