A dust suppression and environmental protection device for highway construction

Abstract

This invention relates to the field of highway dust suppression technology, and more particularly to an environmentally friendly dust suppression device for highway construction, comprising: a mounting frame, independently installed, with multiple spraying mechanisms mounted on the mounting frame; each spraying mechanism includes: a connecting pipe with an inlet at one end and an outlet at the other end, and a baffle plate near the outlet; a pressure storage pipe, one end connecting the inlet of the connecting pipe and the baffle plate; an opening on the side of the baffle plate away from the pressure storage pipe; a spraying pipe, one end extending into the pressure storage pipe and the other end extending outward; a nozzle located at the outer end of the spraying pipe; a piston sliding on the spraying pipe, with an extension section extending into the connecting pipe; a spring located between the piston and the end face of the pressure storage pipe away from the connecting pipe; and a sealing block sliding on the extension section, with its end face facing the outlet abutting the baffle plate, and its side away from the piston having the same shape as the inner wall of the connecting pipe. This invention can achieve large-area spraying, and its structure is safer and simpler.

Description

Technical Field

[0001] This invention relates to the field of highway dust suppression technology, and in particular to an environmental protection device for dust suppression during highway construction. Background Technology

[0002] During highway construction, a large amount of dust is generated, posing a health hazard to construction workers. Furthermore, if construction continues without road closures, it can affect the safety of passing vehicles. Therefore, rapid dust control at construction sites is crucial. Currently, most methods involve spraying water mist into the air, which absorbs and settles the dust, thus achieving dust removal. However, existing dust suppression equipment often requires a structure that allows the nozzles to oscillate to increase the spray range. These structures are not only costly to install and maintain, but their large size and constant movement can also trap dust at the construction site and pose safety hazards to workers. Therefore, a newer and safer dust suppression system for highway construction is needed, capable of both wide-area spraying and a simpler, more efficient design. Summary of the Invention

[0003] This invention provides a dust suppression and environmental protection device for highway construction, which can effectively solve the problems in the background art.

[0004] The present invention provides a dust suppression and environmental protection device for highway construction, comprising: a mounting frame, which is independently set up, and multiple spraying mechanisms are set on the mounting frame;

[0005] Each spraying unit includes:

[0006] The connecting pipe has an inlet at one end and an outlet at the other end, with a baffle plate installed at the end near the outlet.

[0007] The pressure storage pipe is connected at one end to the inlet of the connecting pipe and the baffle plate;

[0008] An opening is provided on the side of the barrier plate away from the pressure storage pipe;

[0009] The spray pipe has one end inserted into the pressure storage pipe and the other end extended to the outside;

[0010] The nozzle is located at one end of the outer side of the spray pipe;

[0011] The piston slides on the spray pipe, and the piston is provided with an extension section that extends into the connecting pipe;

[0012] A spring is positioned between the piston and the end face of the accumulator tube furthest from the connecting tube;

[0013] The blocking block slides on the extension section, and its end face facing the outlet is in contact with the baffle plate, while the side away from the piston has the same shape as the inner wall of the connecting pipe.

[0014] During operation, when the sealing block moves to the position furthest from the connecting pipe, the extension section drives the sealing block to the open state, and a gap is formed between the side of the sealing block and the connecting pipe when the sealing block is in the open state.

[0015] Furthermore, the connecting pipe includes a first section and a second section, which are spliced ​​together to form a pipe body structure; the pressure storage pipe is disposed on the first section;

[0016] The connecting pipe also includes two connectors, which are respectively fitted onto both ends of the pipe structure.

[0017] Furthermore, the first part has a groove on the surface where it is joined with the second part, and the second part has a protrusion on the surface where it is joined with the first part; after joining, the protrusion extends into the groove.

[0018] Furthermore, multiple air holes are provided at the end of the pressure storage pipe away from the connecting pipe.

[0019] Furthermore, multiple sealing rings are provided on the outer side of the piston, and a sealing ring is provided on the inner side of the piston at the end away from the connecting pipe.

[0020] Furthermore, a protruding chuck is provided at the end of the extension section facing the connecting pipe, and the diameter of the chuck gradually decreases in the direction away from the piston; a baffle is provided on the side of the sealing block facing the piston, and the extension section passes through the baffle.

[0021] Furthermore, the extension section is tubular, and a through groove is provided on the side of the extension section, with one end of the through groove extending to the end face of the extension section.

[0022] Furthermore, a protruding limiting block is provided on the side of the sealing block away from the piston; a limiting hole is provided on the inner side of the connecting pipe; the limiting block extends into the limiting hole.

[0023] Furthermore, each spraying mechanism also includes two clamps, which are respectively set on both sides of the pressure storage pipe and fitted onto the connecting pipe. The two clamps are used to fix the spraying mechanism.

[0024] Furthermore, each spraying mechanism also includes an outlet pipe and an inlet pipe, which are connected to the outlet and inlet respectively, and the outlet pipe and inlet pipe have different lengths.

[0025] The technical solution of this invention can achieve the following technical effects:

[0026] This invention, through a specially designed spraying mechanism, enables the water pressure supplied to the nozzles to continuously cycle from high to low and from low to high, allowing the spraying distance of the water mist to change continuously, thereby increasing the spraying area. Furthermore, the entire device does not require any swaying during the process of change, thus effectively eliminating the need for a large-scale swaying mechanism that poses certain safety hazards.

[0027] In addition, when providing water flow, this equipment only requires the drainage motor to maintain a fixed working state. The water pressure is achieved by the spraying mechanism itself. Therefore, it does not require monitoring and adjustment by detection equipment, and the water supply system can be greatly simplified. This greatly reduces the difficulty of use and saves manufacturing costs. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the dust suppression and environmental protection equipment for highway construction in this invention;

[0030] Figure 2 This is a schematic diagram of the spraying mechanism in this invention;

[0031] Figure 3 This is a schematic diagram of the structure of the spraying mechanism connecting pipe after being cut open in this invention;

[0032] Figure 4 This is a schematic diagram of the first state of the spraying mechanism in operation according to the present invention;

[0033] Figure 5 This is a schematic diagram of the second state of the spraying mechanism in operation according to the present invention;

[0034] Figure 6 This is a schematic diagram of the third state of the spraying mechanism in operation according to the present invention;

[0035] Figure 7 This is a split view of the first and second portions of the connecting pipe in this invention;

[0036] Figure 8 This is a breakdown diagram of the piston, extension section, and sealing block in this invention.

[0037] Reference numerals: 1. Mounting bracket; 2. Connecting pipe; 2a. Inlet; 2b. Outlet; 21. Barrier plate; 22. First section; 23. Second section; 24. Connector; 25. Limiting hole; 3. Pressure storage pipe; 31. Air hole; 4. Spray pipe; 5. Nozzle; 6. Piston; 7. Extension section; 71. Chuck; 72. Through groove; 8. Spring; 9. Sealing block; 91. Baffle; 92. Limiting block; 10. Clamp. Detailed Implementation

[0038] The basic principles and main features of the technical solution of the present invention will be described below with reference to the accompanying drawings of the embodiments of the present invention. The following description will use one or more embodiments for a more intuitive understanding. These embodiments are merely some, not all, of the embodiments of the present invention.

[0039] In the description of this invention, the terms indicating orientation or positional relationship (such as up, down, left, right, etc.) are based on the orientation shown in the drawings or some conventional positional relationships, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the features referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0040] A dust suppression and environmental protection device for highway construction, such as Figure 1 As shown, the device includes a mounting frame 1, which is independently installed. The mounting frame 1 primarily supports multiple spraying mechanisms arranged in a multi-row, multi-column array on the mounting frame 1. By varying the installation method of the mounting frame 1, the device can adapt to different environments. For example, by mounting the mounting frame 1 on a vehicle, the device can move with the vehicle to perform dust suppression operations along the entire road surface. Alternatively, by fixing the mounting frame 1 to a wall, ceiling, or ground, the device can perform dust suppression operations on a specific area. During operation, the device requires a water tank or other water storage container, and a water pump supplies water to the spraying mechanisms. Each spraying mechanism can independently spray water mist, and the number of spraying mechanisms is set according to actual usage requirements.

[0041] Each spraying unit, such as Figures 2-3 As shown, it specifically includes:

[0042] The connecting pipe 2 has an inlet 2a at one end and an outlet 2b at the other end. A baffle plate 21 is installed at the end near the outlet 2b. The baffle plate 21 is perpendicular to the length direction of the connecting pipe 2. The baffle plate 21 has an opening on the side away from the pressure storage pipe 3. The opening is relatively small, so that the baffle plate 21 can block the water flow most of the time.

[0043] The pressure storage pipe 3 is perpendicular to the connecting pipe 2; one end of the pressure storage pipe 3 is connected between the water inlet 2a of the connecting pipe 2 and the baffle plate 21, and the connection point is located at the midpoint of the length of the connecting pipe 2. The connecting pipe 2 and the pressure storage pipe 3 are combined to form a T-shaped structure.

[0044] One end of the spray pipe 4 extends into the pressure storage pipe 3, creating a certain gap between the pressure storage pipe 3 and the spray pipe 4; the other end of the spray pipe 4 extends to the outside.

[0045] Nozzle 5 is located at one end of the outside of spray pipe 4 and is used to convert water flow into water mist. The number of nozzles 5 is determined according to specific usage requirements. There can be only one nozzle 5 directly connected to spray pipe 4, or multiple nozzles 5 can be connected to one spray pipe 4 at the same time through adapter pipe.

[0046] Piston 6 has a through hole in the middle, which allows piston 6 to slide on spray pipe 4; piston 6 is also provided with an extension section 7 that extends into connecting pipe 2; extension section 7 and piston 6 are an integral structure and will move together with piston 6.

[0047] Spring 8 is disposed between piston 6 and the end face of pressure storage tube 3 away from connecting tube 2;

[0048] The sealing block 9 is fitted onto the extension section 7 and can slide relative to the extension section 7; the end face of the sealing block 9 facing the outlet 2b is in contact with the baffle plate 21; the height of the sealing block 9 is slightly smaller than the diameter of the connecting pipe 2, allowing the sealing block 9 to move slightly radially within the connecting pipe 2; the side of the sealing block 9 away from the piston 6 has the same shape as the inner wall of the connecting pipe 2, and this side is referred to as the sealing side. A through hole is provided at the end of the sealing block 9 away from the baffle plate 21, allowing water to flow through this end.

[0049] The working process and principle of this equipment are as follows:

[0050] When no water is supplied to the spraying mechanism, the spraying mechanism is in the following state: Figure 4 As shown, the spring 8 will push the piston 6 to the position closest to the connecting pipe 2. At this time, the extension section 7 will abut against the sealing block 9, so that the sealing side of the sealing block 9 and the inner wall of the connecting pipe 2 are in contact. In addition, the sealing block 9 is in contact with the barrier plate 21, so the sealing block 9 blocks the opening of the barrier plate 21.

[0051] Water is then supplied to the spraying mechanism. Water enters the connecting pipe 2 from the inlet 2a, then flows along the spray pipe 4 to the nozzle 5, where it is sprayed as a mist. Since the spray volume is relatively small compared to the incoming water flow, and the blocking block 9 blocks the opening of the baffle plate 21, the water pressure at the inlet 2a section continuously increases as water continues to enter, causing the water mist from the nozzle 5 to travel further. Furthermore, the increased water pressure pushes the piston 6 to compress the spring 8, causing the piston 6 to move away from the connecting pipe 2. Figure 5 As shown.

[0052] When the water pressure reaches a certain level, it pushes piston 6 to its limit position, thus opening the valve. Figure 6As shown, the extension section 7, which moves along with the piston 6, pulls the sealing block 9, creating a small gap between the sealing side of the sealing block 9 and the inner wall of the connecting pipe 2. This small gap connects to the opening of the baffle plate 21, allowing the high-pressure water at the inlet 2a to flow through the small gap to the outlet 2b, thus depressurizing the high-pressure water at the inlet 2a. As the water pressure decreases, the distance of the water mist sprayed from the nozzle 5 gradually decreases. When the water pressure decreases, the compressed spring 8 pushes the piston 6, causing it to gradually move closer to the connecting pipe 2. The small gap remains open under the pressure generated by the water flow (i.e., the sealing block 9 remains separated from the inner wall of the connecting pipe 2), allowing the high-pressure water to continue to depressurize. Only when the piston 6 finally moves to the position closest to the connecting pipe 2 will the end face of the extension section 7 press against the sealing block 9 again, pushing it against the inner wall of the connecting pipe 2 to seal it and re-block the opening of the baffle plate 21.

[0053] As can be seen, by cyclically switching between various states of the spraying mechanism, the water pressure supplied to nozzle 5 can be continuously cyclical from high to low and from low to high, allowing the spraying distance of the water mist to change continuously, thereby increasing the spraying area. Furthermore, the entire device does not require any swaying during this process, effectively eliminating the need for a bulky and potentially unsafe swaying mechanism. In addition, traditional water pressure adjustment requires additional equipment to continuously control the water flow input, necessitating monitoring and adjustment with detection equipment. This is not only costly but also requires the corresponding pumping motor to constantly switch speeds and operating states, which can easily damage the pumping motor. In contrast, this device only requires the drainage motor to remain in one operating state when supplying water; the water pressure is achieved through the structure of the spraying mechanism itself. Therefore, it eliminates the need for monitoring and adjustment with detection equipment, significantly simplifying the water supply system, greatly reducing the difficulty of use, and saving manufacturing costs.

[0054] Considering the injection molding process requirements of connecting pipe 2, and the need to install components such as piston 6, spring 8, and sealing block 9 into connecting pipe 2, it is best to adopt a split design for connecting pipe 2, that is, multiple components are combined to form a whole connecting pipe 2, such as... Figure 7 As shown, these components include a first section 22 and a second section 23, both of which are shaped like half-tubes. The first section 22 and the second section 23 are joined together to form a complete tube structure. A pressure storage tube 3 is mounted on the first section 22, and the pressure storage tube 3 and the first section 22 form an integral structure. The connecting pipe 2 also includes two connectors 24, which are respectively fitted onto both ends of the tube structure. During manufacturing, the two connectors 24 are injection molded separately, the second section 23 is injection molded separately, and the pressure storage tube 3, the first section 22, and the spray pipe 4 are injection molded together to form an integral structure.

[0055] During installation, first place the spring 8, piston 6 and sealing block 9 into their corresponding positions in sequence. Then, splice the second part 23 and the first part 22 together. Use ultrasonic welding to melt and weld the splicing surfaces of the second part 23 and the first part 22 into one piece under the action of ultrasonic waves. Then, put the two joints 24 on both ends of the pipe structure to prevent the second part 23 and the first part 22 from separating.

[0056] The first part 22 is used to set a groove on the surface where it is spliced ​​with the second part 23, and the second part 23 is used to set a protrusion on the surface where it is spliced ​​with the first part 22. After splicing, the protrusion extends into the groove, thereby forming a stepped structure on the splicing surface of the first part 22 and the second part 23, increasing the contact area and complexity of the splicing surface, and effectively improving the water-proof effect at the splicing point.

[0057] The two connectors 24 preferably employ a 90° bend structure, allowing the outlet and inlet pipes connecting the outlet 2b and inlet 2a to turn backward in the spraying direction, facilitating pipe connection and other operations. Preferably, the outlet and inlet pipes are of different lengths, and this length relationship is consistent across all spraying mechanisms; for example, the outlet pipe is always longer than the inlet pipe in all spraying mechanisms, making it easier for personnel to distinguish them when connecting the pipes.

[0058] Preferably, multiple air holes 31 are provided at the end of the pressure storage pipe 3 away from the connecting pipe 2, so that the air inside the pressure storage pipe 3 can communicate with the outside, avoiding interference with the movement of the piston 6. Furthermore, the state of the piston 6 and the spring 8 inside the pressure storage pipe 3 can be observed through the air holes 31, so as to inspect the spraying mechanism.

[0059] Ideally, at least two sealing rings should be installed on the outer side of piston 6. These sealing rings should be arranged along the entire length of piston 6. Multiple sealing rings not only improve sealing performance but also ensure smooth movement of piston 6. Considering the ease of installation of sealing rings located on the inner side of piston 6, this device only installs a sealing ring on the inner side of piston 6 at the end furthest from connecting pipe 2, ensuring sufficient sealing performance on the inner side. The smoothness of piston 6's movement is primarily achieved through the outer sealing rings.

[0060] There are multiple ways to connect the extension section 7 and the sealing block 9 to enable the extension section 7 to drive the sealing block 9. For example, a long groove can be provided along the length of the extension section 7, and then a rod extending into the long groove can be provided on the sealing block 9. To minimize the number of parts and facilitate the assembly of the spraying mechanism, the following structural form is preferred in this equipment: Figure 8As shown, a protruding chuck 71 is provided at the end of the extension section 7 facing the connecting pipe 2. The diameter of the chuck 71 gradually decreases towards the direction away from the piston 6, forming a frustum shape. A baffle 91 is provided on the side of the sealing block 9 facing the piston 6. The baffle 91 has a through hole, through which the extension section 7 passes. The diameter of the through hole is smaller than the diameter of the end of the chuck 71 facing the through hole. With this structure, when the extension section 7 pushes or pulls the sealing block 9, the frustum-shaped chuck 71 can increase the contact range between the extension section 7 and the sealing block 9, ensuring that the sealing block 9 moves more smoothly and accurately.

[0061] To facilitate the installation of the extension section 7, it is preferable to set the extension section 7 in a tubular shape and provide a through groove 72 on the side of the extension section 7. One end of the through groove 72 extends to the end face of the extension section 7, so that the chuck 71 is divided into two parts by the through groove 72. In this way, when the chuck 71 passes through the through hole on the baffle 91, it can be squeezed and deformed, so that it can pass through the through hole smoothly, and then return to its original shape after passing through the through hole, thus completing the installation.

[0062] Since the extension section 7 can only restrict the movement of one side of the sealing block 9, in order to ensure that the sealing block 9 will not be misaligned, a protruding limiting block 92 needs to be set on the side of the sealing block 9 away from the piston 6; a limiting hole 25 should be set on the inner side of the connecting pipe 2 accordingly; the limiting block 92 extends into the limiting hole 25, thereby restricting the movement of the other side of the sealing block 9.

[0063] The connecting pipe 2 itself can be provided with mounting holes for fixing. However, since the connecting pipe 2 adopts a split design in this equipment, it needs to be ultrasonically welded. In order to achieve the best process effect, the tubular shape of the connecting pipe 2 needs to be maintained as much as possible. Therefore, this equipment also provides two additional clamps 10 in each spraying mechanism. Both clamps 10 are Ω-shaped. The two clamps 10 are respectively set on both sides of the pressure storage pipe 3 and are fitted on the connecting pipe 2. The two clamps 10 are used to fix the spraying mechanism.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highway construction dust fall environmental protection equipment, characterized in that, The utility model provides a kind of installation frame (1) comprising, independently, a plurality of spraying mechanisms are provided on the installation frame (1); Each of the spraying mechanisms comprises: A connecting pipe (2) is provided with a water inlet (2a) at one end, a water outlet (2b) at the other end, and a blocking plate (21) near the water outlet (2b); A pressure storage pipe (3) is connected between the water inlet (2a) of the connecting pipe (2) and the blocking plate (21); An opening is provided on the side of the blocking plate (21) away from the pressure storage pipe (3); A spraying pipe (4) extends into the pressure storage pipe (3) at one end and extends to the outside at the other end; A nozzle (5) is provided at the end of the spraying pipe (4) outside; A piston (6) slides on the spraying pipe (4), and an extension (7) of the piston (6) extends into the connecting pipe (2); A spring (8) is provided between the piston (6) and the end face of the pressure storage pipe (3) away from the connecting pipe (2); A blocking block (9) slides on the extension (7), and the end face towards the water outlet (2b) is attached to the blocking plate (21), and the side away from the piston (6) is the same shape as the inner wall of the connecting pipe (2); When no water is supplied to the spraying mechanism or the water pressure is low, the spring (8) pushes the piston (6) to the position closest to the connecting pipe (2), at which time the extension (7) abuts against the blocking block (9), so that the blocking side of the blocking block (9) is attached to the inner wall of the connecting pipe (2), and the connecting pipe (2) is attached to the blocking plate (21), at which time the blocking block (9) blocks the opening of the blocking plate (21); When the water pressure rises, the piston (6) moves to the position farthest away from the connecting pipe (2), and the extension (7) moves the blocking block (9) to an open state, and a gap is formed between the side of the blocking block (9) and the connecting pipe (2) in the open state.

2. The expressway construction dust fall environmental protection equipment according to claim 1, characterized in that, The connecting pipe (2) comprises a first part (22) and a second part (23), and the first part (22) and the second part (23) form a pipe structure after splicing; the pressure storage pipe (3) is arranged on the first part (22); The connecting pipe (2) further comprises two joints (24) sleeved on both ends of the pipe structure.

3. The highway construction dust fall environmental protection equipment according to claim 2, characterized in that, The first part (22) is provided with a groove on the surface for splicing with the second part (23), and the second part (23) is provided with a protrusion on the surface for splicing with the first part (22); after splicing, the protrusion extends into the groove.

4. The highway construction dust fall environmental protection equipment according to claim 1, characterized in that, A plurality of air holes (31) are provided on the end of the pressure storage pipe (3) away from the connecting pipe (2).

5. The highway construction dust fall environmental protection equipment according to claim 1, characterized in that, A plurality of sealing rings are provided on the outside of the piston (6), and a sealing ring is provided on the inside of the piston (6) away from the connecting pipe (2).

6. The highway construction dust fall environmental protection equipment according to claim 1, characterized in that, The extension section (7) is provided with a protruding chuck (71) at one end of the connecting pipe (2), and the chuck (71) gradually decreases in diameter away from the piston (6); the plugging block (9) is provided with a baffle (91) on one side of the piston (6), and the extension section (7) passes through the baffle (91).

7. The highway construction dust fall environmental protection equipment according to claim 6, characterized in that, The extension section (7) is tubular, and the side of the extension section (7) is provided with a through groove (72) extending to the end face of the extension section (7).

8. The highway construction dust fall environmental protection equipment according to claim 1, characterized in that, The plugging block (9) is provided with a protruding limiting block (92) on the side away from the piston (6); the inside of the connecting pipe (2) is provided with a limiting hole (25); and the limiting block (92) extends into the limiting hole (25).

9. The highway construction dust fall environmental protection equipment according to claim 1, characterized in that, Each of the spraying mechanisms further comprises two clamps (10) provided on both sides of the pressure storage pipe (3) and sleeved on the connecting pipe (2), and the two clamps (10) are used for fixing the spraying mechanism.

10. The highway construction dust fall environmental protection equipment according to claim 1, characterized in that, Each of the spraying mechanisms further comprises a water outlet pipe and a water inlet pipe connected with the water outlet (2b) and the water inlet (2a) respectively, and the lengths of the water outlet pipe and the water inlet pipe are different.

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