A spray dust suppression device for construction

Abstract

The present invention provides a construction spray dust suppression device, including a bracket, a swing and rotation positioner, a swing arm assembly, a rotating arm assembly and a water film pipe fitting, wherein the column of the bracket is fixed with a track plate beam and an I-beam, the track plate beam is provided with a track groove, and track wheels are provided on both sides of the upper part of the fan-shaped cover of the swing and rotation positioner, and are sleeved in the corresponding track groove; the lower part of the rotating seat of the swing arm assembly is connected with an elastic pin rod, and a roller is installed at the end of the elastic pin rod, and the roller is sleeved in the groove of the I-beam, and the bottom of the rotating rod of the rotating arm assembly is rotatably sleeved on the top of the swing arm assembly, a half gear is installed in the middle of the rotating rod, and a fan rack is fixed inside one side of the fan-shaped cover, and the two are meshed; a water film pipe fitting is fixed on the top of the rotating rod, and the left and right side walls of the pipe body of the water film pipe fitting are double-seamed, and the rear side is single-seamed, and the bottom of the pipe body is connected to a high-pressure water supply system. The present invention can significantly reduce dust pollution and improve the dust suppression efficiency and environmental quality of the construction site.

Description

Technical Field

[0001] The invention belongs to the technical field of spray dust reduction equipment, and in particular relates to a spray dust reduction device for building construction. Background Art

[0002] Construction spray dust suppression device is a kind of dust suppression equipment used in construction sites. It uses a high-pressure water pump to transport water to the spray device, and sprays the water into the air in the form of fine water droplets through the nozzle, thereby capturing dust particles in the air and achieving the effect of dust suppression. This type of device plays an important role in environmental protection during the construction process, reducing the impact of construction dust on the surrounding environment and workers' health.

[0003] Existing construction spray dust suppression devices are mainly composed of fixed brackets, nozzles, high-pressure water pumps and water supply systems. These devices are usually installed at fixed locations on the construction site and spray water within a certain range through nozzles. Fixed spray devices are simple in design and low in cost, but their coverage is limited and they need to be moved and adjusted multiple times to cover the entire construction area. In addition, in actual use, existing spray devices often have unsatisfactory spraying effects due to problems such as nozzle blockage and unstable water pressure, making it difficult to achieve uniform and effective dust reduction.

[0004] Although the existing spray dust suppression devices have alleviated the dust problem on construction sites to a certain extent, there are still many shortcomings. For example:

[0005] Insufficient spraying: The existing devices have a limited spraying range and it is difficult to cover a large construction area, resulting in unsatisfactory dust reduction effects in some areas.

[0006] Fixed position limitation: Most sprinkler devices are fixed in design and cannot be moved dynamically. The spraying position can only be adjusted by manual movement, which increases the difficulty of operation and labor costs.

[0007] Uneven spraying: Due to unstable water pressure, nozzle blockage and other reasons, it is difficult for existing devices to maintain continuous and uniform spraying effects, which reduces the dust reduction efficiency.

[0008] Existing construction spray dust suppression devices have many problems and shortcomings, especially uneven spraying and lack of dynamic movement function, which makes it difficult to meet the needs of efficient dust suppression. Therefore, it is necessary and practical to improve the design of spray dust suppression devices and improve their spraying effect and flexibility. Summary of the invention

[0009] In view of the defects and problems existing in the prior art, the present invention aims to achieve efficient spraying and dust reduction at construction sites through a multifunctional structure and innovative design, significantly reduce dust pollution, and improve the cleanliness and safety of the working environment.

[0010] The solution of the present invention to solve the technical problem is: a construction spray dust reduction device is adopted, including a bracket, a swing and rotation positioner, a swing arm assembly, a rotating arm assembly and a water film pipe fitting, the bracket includes a column, a track plate beam and an I-beam, the track plate beam is fixed on the top of the parallel columns on both sides, and the I-beam is fixed on the lower part of the track plate beam, the track plate beam is two parallel support plates, and track grooves are respectively provided; the swing and rotation positioner includes a fan-shaped cover and a track wheel, an axial hole is provided at the lower center position of the fan-shaped cover, and a pair of track wheels are respectively provided on the outer walls on both sides of the upper part of the fan-shaped cover, and each track wheel on both sides is sleeved in the corresponding track groove; the swing arm assembly includes a swivel seat, an elastic pin rod and a roller, and the left and right side shafts of the swivel seat are respectively matched and sleeved in the axial hole, An elastic pin rod is connected to the lower part of the swivel seat, and a roller is installed at the end of the elastic pin rod through a wheel frame. The roller is sleeved in the groove of the I-beam, and a connecting sleeve is connected to the upper part of the swivel seat; the swivel rod assembly includes a swivel rod, a half gear and a fan rack. The bottom of the swivel rod is rotatably sleeved in the connecting sleeve, and a half gear is installed in the middle part of the swivel rod. One half of the half gear is cylindrical and the other half is a concave gear shape. At the same time, a fan rack is fixed inside one side of the fan-shaped cover, and the half gear is meshed with the fan rack; a water film pipe fitting is fixed on the top of the swivel rod, and the water film pipe fitting includes a pipe body, side seams and a rear seam. Side seams are opened on the left and right side walls of the pipe body, and a rear seam is opened on the rear side of the pipe body. A water pipe joint is fixed at the bottom of the pipe body, and the water pipe joint is connected to the high-pressure water supply system.

[0011] Preferably, the bracket further comprises an end stop, and the end stop is respectively installed on the upper part of the columns on both sides.

[0012] Preferably, the swing and rotation positioner further comprises a buffer pad, and the buffer pads are fixed on the inner walls on the left and right sides of the fan-shaped cover.

[0013] Preferably, an inner rotating column is fixed at the bottom of the rotating rod of the rotating rod assembly and the diameter of the inner rotating column is larger than the rotating rod. The inner rotating column is matched and sleeved in the connecting sleeve. A lower rotating sleeve and an upper rotating sleeve are respectively installed at the bottom and top of the connecting sleeve, so that the upper rotating sleeve can be constrained in the connecting sleeve and can only rotate but not slide axially.

[0014] Preferably, a recessed area is provided on the upper part of the rotating rod, a clamping ring is mounted on the outer side of the recessed area, a positioning slider is fixed on the outer side of the clamping ring, and the left and right side walls of the positioning slider are fitted to the left and right inner walls of the fan-shaped cover. When the rotating rod swings, the positioning slider slides along the inner wall of the fan-shaped cover.

[0015] Preferably, it also includes a water truck, which has a frame fixed on the top of the vehicle body, a water tank installed in the frame, a function box arranged at the bottom of the vehicle body, and two groups of the spray dust reduction devices fixed on the left and right sides of the frame, and the two groups of devices are controlled to reciprocate and move alternately.

[0016] Preferably, a water supply assembly is installed on the upper side of the water tank of the water truck, and the water supply assembly includes a high-pressure water pump, a water supply pipe, a sliding rod and a slip ring. The high-pressure water pump is fixed to the top or inner side of the water tank, and the high-pressure water outlet of the high-pressure water pump is connected to the water pipe joints of two sets of spray dust reduction devices through the water supply pipe. At the same time, a sliding rod is fixed laterally on the top of the frame, and a series of slip rings are mounted on the sliding rod. The water supply pipes on both sides are respectively mounted in the corresponding slip rings and can slide left and right with the slip rings.

[0017] Preferably, a two-way linkage component is installed on the upper side of the waterwheel, and the two-way linkage component includes a traction part, a pull rope, a guide wheel, a front rope roller and a rear rope roller. The traction part is located on the side wall of the swinging and rotating positioner, and the middle part of the pull rope is fixed to the traction part. Guide wheels are respectively fixed at the front and rear ends of the frame, and the front rope roller and the rear rope roller are respectively installed on the rotating shafts of the front and rear wheels. After the front and rear ends of the pull rope pass around the guide wheels respectively, the front end is wound around the front rope roller, and the rear end is wound around the rear rope roller.

[0018] The beneficial effects of the present invention are as follows: by designing a new type of construction spray dust reduction device with dynamic movement function, uniform spraying and wide coverage, the deficiencies in the existing technology can be effectively solved, dust pollution can be significantly reduced, and the dust reduction efficiency and environmental quality of the construction site can be improved.

[0019] Continuous and uniform water film generation: The water film pipe forms a left-right symmetrical longitudinal and lateral water film through a high-pressure water supply system, ensuring that the device continuously and effectively covers the dust reduction area during movement, significantly reducing dust. The design of the bracket enables the device to be stably fixed on the top of the fence or on the ground, adapting to different installation environments, and improving the flexibility and adaptability of the device. The swing rotation positioner uses a combination of track wheels and buffer pads to enable the device to run smoothly during translation, and can effectively absorb impact and protect the internal structure.

[0020] Efficient spraying and automatic flipping: The elastic pin and roller design in the swing arm assembly enables the device to roll in the groove of the I-beam, providing an automatic tilting function. The cooperation of the half gear and the fan rack in the rotating rod assembly realizes the automatic flipping function of the device during the swinging process, ensuring the constant spraying effect of the water film pipe in different directions and improving the dust reduction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the use state of the dust removal device of the present invention;

[0022] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0023] Figure 3 yes Figure 2 Schematic diagram of the three-dimensional structure of the swing and rotation positioner;

[0024] Figure 4 yes Figure 3 A front view of

[0025] Figure 5 yes Figure 3 Left view of

[0026] Figure 6 yes Figure 5 Schematic diagram of the structure of the middle BB section;

[0027] Figure 7 is a top view of the swing and rotation positioner;

[0028] Figure 8 Schematic diagram of the connection relationship between the swing rod assembly and the rotating rod assembly;

[0029] Fig. 9 It is a schematic diagram of the state of the dust removal device of the present invention being used in conjunction with a water truck;

[0030] Fig.10 yes Fig. 9 A schematic diagram of the structure of the mid-frame assembly with a two-way linkage assembly;

[0031] Fig.11 yes Fig.10 A schematic diagram of the structure of the middle frame with a one-way linkage assembly;

[0032] Fig.12 It is a structural schematic diagram of water film pipe fittings.

[0033] Numbers in the figure: 1- bracket; 2- swing rotation positioner; 3- swing rod assembly; 4- rotating rod assembly; 5- water wheel; 6- water supply assembly; 7- two-way linkage assembly; 8- water film pipe fitting; 9- one-way linkage assembly; 11- column; 12- crossbeam; 13- plug; 14- track plate beam; 15- track groove; 16- I-beam; 17- end stop; 21- fan-shaped cover; 22- shaft hole; 23- track wheel; 24- buffer pad; 31- swivel seat; 32- rotating shaft; 33- elastic pin rod; 34- wheel frame; 35- roller; 36- connecting sleeve; 41- rotating rod; 42- inner rotating column; 43- lower rotating sleeve; 44- upper rotating sleeve; 45- positioning slider; 46- clamping ring; 4 7-half gear; 48-fan rack; 49-fan slide; 51-body; 52-water tank; 53-function box; 54-frame; 55-function button; 61-high-pressure water pump; 62-water supply pipe; 63-slide rod; 64-slip ring; 71-traction part; 72-pull rope; 73-guide wheel; 74-front rope roller; 75-rear rope roller; 81-tube body; 82-side seam; 83-rear seam; 84-water pipe joint; 85-plug-in part; 91-fixed seat; 92-sliding seat; 93-sliding block; 94-front wire tube; 95-rear wire tube; 96-core wire; 97-translation plate; 98-translation limit hole; 99-clutch fork; 161-web plate; 162-web plate slide hole. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0035] Embodiment 1: A construction spray dust suppression device, such as Figure 1-Figure 8 As shown, the device mainly includes a bracket 1, a swing rotation positioner 2, a swing rod assembly 3, a rotating rod assembly 4 and a water film pipe 8. Among them, Figure 1 The bracket 1 shown in the figure includes a column 11, a crossbeam 12, a plug 13, a track plate beam 14, a track groove 15, an I-beam 16 and an end stop 17. The crossbeam 12 is fixed at the bottom of the parallel columns 11 on both sides, the track plate beam 14 is fixed at the top, and the I-beam 16 is fixed in the middle. The bottom of the columns 11 on both sides is provided with a plug 13, so that the columns 11 on both sides can be inserted and fixed on the top of the fence, or the bottom of the columns 11 on both sides can be independently fixed to the ground after the support is installed.

[0036] Figure 2 In the embodiment, the track plate beam 14 is two parallel support plates, a matching gap exists between the two support plates, and a track groove 15 is respectively arranged on each plate surface. Figure 1 and Figure 2 As can be seen in the figure, end stoppers 17 are respectively installed on the upper parts of the columns 11 on both sides.

[0037] like Figure 3 and Figure 4 As shown, the swing rotation positioner 2 includes a fan-shaped cover 21, an axial hole 22, a track wheel 23 and a buffer pad 24. The fan-shaped cover 21 is fan-shaped with a width of the upper part being greater than that of the lower part. The axial hole 22 is provided at the center of the lower part. A pair of track wheels 23 are fixed or installed on the outer walls on both sides of the upper part of the fan-shaped cover 21. At the same time, buffer pads 24 are fixed on the inner walls on the left and right sides of the fan-shaped cover 21.

[0038] Figure 2 The figure shows the relationship between the swing and rotation positioner 2 and the bracket 1 , that is, the track wheels 23 on both sides of the sector cover 21 are respectively assembled in the track groove 15 , so that the swing and rotation positioner 2 as a whole can translate left and right along the track groove 15 .

[0039] like Figure 5 and Figure 6As shown, the swing arm assembly 3 includes a swivel seat 31, a rotating shaft 32, an elastic pin rod 33, a wheel frame 34, a roller 35 and a connecting sleeve 36. The rotating shaft 32 is fixed on the left and right sides of the swivel seat 31, and the rotating shafts 32 on both sides are respectively matched and fitted in the shaft holes 22 of the swing rotation positioner 2. The elastic pin rod 33 is connected to the lower part of the swivel seat 31, and the wheel frame 34 is arranged at the end of the elastic pin rod 33. The roller 35 is installed in the wheel frame 34, and the connecting sleeve 36 is connected to the upper part of the swivel seat 31. In the natural state, the elastic pin rod 33 pops outward, so that the roller 35 is located in the upper groove of the I-beam 16, so that the swing arm assembly 3 is in a tilted state as a whole.

[0040] like Figure 6 and Figure 8 As shown, the rotating rod assembly 4 includes a rotating rod 41, an inner rotating column 42, a lower rotating sleeve 43, an upper rotating sleeve 44, a positioning slider 45, a snap ring 46, a half gear 47, a fan rack 48 and a fan slide 49. The inner rotating column 42 is fixed at the bottom of the rotating rod 41, and the diameter of the inner rotating column 42 is larger than that of the rotating rod 41. The inner rotating column 42 is matched and sleeved in the connecting sleeve 36, and the lower rotating sleeve 43 and the upper rotating sleeve 44 are respectively installed at the bottom and the top of the connecting sleeve 36. Therefore, the upper rotating sleeve 44 can be constrained in the connecting sleeve 36 and can only rotate but not slide axially. A recessed area is provided on the upper part of the rotating rod 41, and a snap ring 46 is sleeved on the outer side of the recessed area. A positioning slider 45 is fixed on the outer side of the snap ring 46. The left and right side walls of the positioning slider 45 are attached to the left and right inner walls of the fan-shaped cover 21. When the rotating rod 41 swings, the positioning slider 45 slides along the inner wall of the fan-shaped cover 21 (an arc track can be provided between the inner wall of the fan-shaped cover 21 and the outer wall of the positioning slider 45). The lower rotating sleeve 43, the upper rotating sleeve 44 and the snap ring 46 are a set of rigid lubricating support materials, such as polytetrafluoroethylene, polyacetal, polyoxymethylene or graphite, so that the rotating rod 41 can rotate smoothly in the snap ring 46.

[0041] A half gear 47 is installed in the middle of the rotating rod 41. One half of the half gear 47 is cylindrical and the other half is a concave gear shape. At the same time, a fan rack 48 is fixed inside one side of the fan-shaped cover 21, and a fan slide 49 is fixed to the inner wall of the other side. The fan rack 48 is a protruding tooth, such as Figure 6 and Figure 7 As shown. When the rotating rod 41 swings left and right with the rotating seat 31, the half gear 47 first slides on one end between the fan rack 48 and the fan slide bar 49. When the half gear 47 contacts the toothed fan rack 48, the half gear 47 rolls along the fan rack 48, so that the rotating rod 41 can rotate half a circle, and then the half gear 47 slides on the other end of the fan rack 48 and the fan slide bar 49. When the rotating rod 41 swings in the opposite direction, the half gear 47 rotates half a circle in the opposite direction between the fan rack 48 and the fan slide bar 49 in the same way.

[0042] like Fig.12As shown, the water film pipe fitting 8 includes a pipe body 81, a side seam 82, a rear seam 83, a water pipe joint 84 and a plug-in portion 85. Double seams are opened on the left and right side walls of the pipe body 81, namely the side seams 82, and a single seam is opened on the rear side of the pipe body 81, namely the rear seam 83. A water pipe joint 84 is fixed at the bottom of the pipe body 81, one side of the water pipe joint 84 is connected to the water supply pipe 62, and a plug-in portion 85 is fixed at the bottom of the water pipe joint 84, and the plug-in portion 85 is sleeved and fixed on the outer side of the rotating rod 41.

[0043] like Figure 1 As shown, after the water film pipe 8 is fixedly installed on the top of the rotating rod assembly 4, water is supplied to the water supply pipe 62 through the high-pressure water supply system, and the high-pressure water will be discharged from the left and right side seams 82 and the rear seam 83. The side seams 82 on both sides will form left-right symmetrical longitudinal water films M1 and M2, and the rear seam 83 on the rear side will form a transverse water film M0. Since there is no water pressure on the front side of the water film pipe 8, and the rear side is subjected to the reaction force of the water pressure of the rear seam 83, the water film pipe 8 can push the rotating rod assembly 4, the swing arm assembly 3 and the swing rotation positioner 2 to move forward as a whole. In the initial state, the roller 35 below the swing arm assembly 3 tilts forward and rolls forward along the groove at the top of the I-beam 16, while the rotating rod assembly 4 and the water film pipe 8 tilt backward. Since the roller 35 rolls with almost no resistance during the movement (the friction force is very small and can be ignored), the entire swinging and rotating positioner 2, the swing arm assembly 3, the rotating rod assembly 4 and the water film pipe 8 move forward together under the water pressure of M0. When the swing arm assembly 3 moves to the extreme position and is blocked by the end stop 17, the roller 35 cannot continue to move forward, but the entire swinging and rotating positioner 2, the swing arm assembly 3 and the water film pipe 8 will continue to move forward. With the help of the water pressure of the rear seam 83 and the inertia of the overall movement, the elastic pin 33 is pressed inward and shrinks, prompting the rotating rod assembly 4 and the water film pipe 8 to flip and swing forward. When the rotating rod assembly 4 swings forward, the direction of the rear seam 83 also rotates 180 degrees because the half gear 47 contacts the fan rack 48 and rolls half a circle, and the directions of the machines M0, M1 and M2 rotate 180 degrees respectively. At this time, under the thrust of the rear seam 83, the entire swing rotation positioner 2, the swing rod assembly 3, the rotating rod assembly 4 and the water film pipe 8 move in opposite directions together. In this way, reciprocating movement is achieved. During the reciprocating movement, the water film M0, M1 and M2 translate forward as a whole, so that M1 and M2 are always in the longitudinal direction and reciprocate, which can actively filter the dust in the area on both sides of the isolation wall. M0 is at the top of the isolation wall for a long time and is parallel to the isolation wall, which can isolate the dust floating from the construction site to the outside.

[0044] The steps for using the above solution are as follows:

[0045] 1. Install the bracket 1: Install and fix the bracket 1 according to the actual situation of the construction site. The bottom of the two side columns 11 can be fixed to the top of the fence through the plug 13, or independently fixed to the ground after installing the support. Ensure that the bracket is stable to ensure the stability and safety of the device operation. The stable bracket structure ensures that the device will not tip over or move during operation, which improves the safety of operation.

[0046] 2. Install the swing and rotation positioner 2: Install the track wheels 23 of the swing and rotation positioner 2 in the track grooves 15 of the bracket 1. Ensure that the fan-shaped cover 21 can smoothly translate left and right in the track grooves 15. Ensure that the swing and rotation positioner can move smoothly and ensure that the device can flexibly adjust its position during use.

[0047] 3. Install the swing arm assembly 3: Fit the rotating shaft 32 of the swing arm assembly 3 into the shaft hole 22 of the swing rotation positioner 2, and insert the end roller 35 of the elastic pin 33 into the groove of the I-beam 16. Make sure that the elastic pin 33 can be ejected normally, so that the swing arm assembly 3 is in a tilted state.

[0048] 4. Install the rotating rod assembly 4: Fit the inner rotating column 42 of the rotating rod assembly 4 into the connecting sleeve 36 of the swing rod assembly 3, and install the lower rotating sleeve 43 and the upper rotating sleeve 44 to restrict the axial sliding of the rotating rod 41. Ensure that the rotating rod assembly 4 can rotate smoothly during the swing process, and realize automatic flipping through the cooperation of the half gear 47 and the fan rack 48. The cooperation design of the half gear and the fan rack ensures the automatic flipping function of the rotating rod assembly during the swing process, and improves the uniformity of spraying.

[0049] 5. Install the water film pipe 8: Fix the water film pipe 8 on the top of the rotating rod assembly 4, and connect the water pipe joint 84 to the water supply pipe 62. Ensure that the high-pressure water supply system can normally supply water to the water film pipe 8, so that a uniform water film is formed on the side seam 82 and the rear seam 83. The high-pressure water supply system ensures the formation of a uniform water film, effectively captures dust particles in the air, and achieves a dust reduction effect.

[0050] 6. Adjust and check each component: adjust the installation position of the bracket 1, the swing rotation positioner 2, the swing rod assembly 3, the rotating rod assembly 4 and the water film pipe 8 to ensure that each component fits tightly and runs smoothly. Check the working conditions of the elastic pin 33, the half gear 47, the fan rack 48 and the fan slide 49 to ensure that the device can operate normally.

[0051] 7. Start the high-pressure water supply system: Start the high-pressure water supply system to supply water to the water film pipe 8. Observe the drainage of the side seam 82 and the rear seam 83 to ensure that the water films M1, M2 and M0 are formed and remain uniform and stable. Ensure that the device sprays the water film continuously and evenly during operation to effectively reduce dust.

[0052] 8. Monitor the operation of the device: During the operation of the device, monitor the working conditions of the swing and rotation positioner 2, the swing rod assembly 3, the rotating rod assembly 4 and the water film pipe 8. Ensure that when the device is in the extreme position, it can automatically flip and move in the opposite direction to achieve reciprocating motion.

[0053] 9. Maintenance and care: Regularly perform maintenance and care on the device, and check whether the components of the bracket 1, swing rotation positioner 2, swing rod assembly 3, rotating rod assembly 4 and water film pipe 8 are worn or loose. Clean and replace damaged parts in time to ensure long-term stable operation of the device.

[0054] Through the above-mentioned specific implementation steps, it is ensured that the construction spray dust reduction device can operate efficiently and stably during use, significantly reduce dust pollution, and improve the cleanliness and safety of the construction site.

[0055] Embodiment 2: The spray dust suppression device described in the above embodiment 1 is installed on the upper side of the water wheel 5 for use, such as Fig. 9 As shown, the water truck 5 includes a vehicle body 51, a water tank 52, a function box 53, a vehicle frame 54, and a function button 55. The vehicle frame 54 is fixed on the top of the vehicle body 51, the water tank 52 is installed in the vehicle frame 54, the function box 53 is arranged at the bottom of the vehicle body 51, and the function button 55 is installed on the front side of the vehicle body 51 for controlling the operation of the water supply assembly 6. Fig. 9 The middle water supply assembly 6 includes a high-pressure water pump 61 , a water supply pipe 62 , a sliding rod 63 and a sliding ring 64 .

[0056] Specifically, two groups of spray dust reduction devices as described in Example 1 are fixed on the left and right sides of the frame 54, and the two groups of devices are controlled to move back and forth alternately. Figure 5 It can be seen that the high-pressure water pump 61 is fixed to the top or inner side of the water tank 52, and the high-pressure water outlet of the high-pressure water pump 61 is connected to the water pipe joints 84 of the two sets of spray dust reduction devices through the water supply pipe 62. At the same time, a slide bar 63 is fixed laterally on the top of the frame 54, and a series of slip rings 64 are mounted on the slide bar 63. The water supply pipes 62 on both sides are respectively mounted in the corresponding slip rings 64 and can slide left and right with the slip rings 64.

[0057] like Fig.10As shown, a two-way linkage assembly 7 can be installed on the upper side of the waterwheel 5. The two-way linkage assembly 7 includes a traction part 71, a pull rope 72, a guide wheel 73, a front rope roller 74 and a rear rope roller 75. The traction part 71 is located on the side wall of the swinging and rotating positioner 2. The middle part of the pull rope 72 is fixed to the traction part 71. The front and rear ends of the frame 54 are respectively fixed with guide wheels 73. The front rope roller 74 and the rear rope roller 75 are respectively installed on the rotating shafts of the front and rear wheels. After the front and rear ends of the pull rope 72 pass around the guide wheel 73, the front end is wound on the front rope roller 74, and the rear end is wound on the rear rope roller 75. Therefore, when the swing arm assembly 3 moves to the front side, it can drive the rear rope roller 75 to rotate, so that the waterwheel 5 moves forward. When the waterwheel 5 moves forward, it drives the front rope roller 74 to rotate and reel in. That is, when the water film pipe 8 moves forward with the swinging and rotating positioner 2 as a whole, it also moves forward with the waterwheel 5, thereby increasing the range of water spraying when moving forward. When the rocker assembly 3 moves backward, it can drive the front rope roller 74 to rotate, so that the waterwheel 5 moves backward. When the waterwheel 5 moves backward, it drives the rear rope roller 75 to rotate and reel in the line, thereby increasing the range of the water spraying when moving backward.

[0058] like Fig.11 As shown, a one-way linkage assembly 9 can be installed on the top of the frame 54 and below the I-beam 16 on each side. The one-way linkage assembly 9 includes a fixed seat 91, a sliding seat 92 and a rectangular stabilizing frame 90 located at the front and rear ends. Among them, web sliding holes 162 are respectively opened on the front and rear ends of the web 161 of the I-beam 16, and sliders 93 are respectively installed in the front and rear web sliding holes 162. A sliding seat 92 is fixed to the lower part of each slider 93, and a fixed seat 91 is fixed to the inner edge of each web sliding hole 162. A front wire tube 94 is connected between the front fixed seat 91 and the rectangular stable frame 90, and a rear wire tube 95 is connected between the rear fixed seat 91 and the rectangular stable frame 90. A core wire 96 is installed in the front wire tube 94 and the rear wire tube 95. The front end of the core wire 96 is fixed to the sliding seat 92 on the front side, and the rear section of the core wire 96 is fixed to the sliding seat 92 on the rear side. The core wire 96 is located in the middle of the inner side of the rectangular stable frame 90 and is fixed with a translation plate 97. Translation limit holes 98 are provided on the front and rear end walls of the rectangular stable frame 90. The translation plate 97 is matched and installed in the translation limit hole 98 and can slide in parallel. The front and rear ends of the translation plate 97 are respectively connected to the extension rod and fixed with front and rear clutch forks 99, which are used to control the connection and disconnection of the front and rear clutches respectively (the clutch fork transmits the force from the clutch and pushes the clutch release bearing to make it contact or disengage from the clutch pressure plate, thereby realizing the separation and connection of the clutch).

[0059] like Fig.11As shown in (2), the clutch 100 on the front side is located between the front rope roller 74 and the front wheel shaft 76, and the clutch 100 on the rear side is located between the rear rope roller 75 and the rear wheel shaft 77. Therefore, when the swing arm assembly 3 moves to the front side to the extreme position, it can drive the slider 93 on the front side to move forward, thereby pulling the translation plate 97 and shifting the front and rear clutch forks 99 to the left; or, when the swing arm assembly 3 moves to the rear side to the extreme position, it can drive the slider 93 on the rear side to move backward, thereby pulling the translation plate 97 and shifting the front and rear clutch forks 99 to the right. The above-mentioned feature of controlling the clutch fork 99 to move left or right at the extreme position can control the front rope roller 74 or the rear rope roller 75 to engage or disengage with the axle of the corresponding wheel (when the front and rear clutch forks 99 move to the left at the same time, the front rope roller 74 is connected to the front wheel axle 76, and the rear rope roller 75 is disconnected from the rear wheel axle 77; when the front and rear clutch forks 99 move to the right at the same time, the front rope roller 74 is disconnected from the front wheel axle 76, and the rear rope roller 75 is connected to the rear wheel axle 77), thereby enabling the entire waterwheel 5 to move forward or backward in one direction.

[0060] The above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modification, equivalent substitution, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction spray dust suppression device, characterized in that: The invention comprises a bracket (1), a swing and rotation positioner (2), a swing arm assembly (3), a rotating arm assembly (4) and a water film pipe (8), wherein the bracket (1) comprises a column (11), a track plate beam (14) and an I-beam (16), the track plate beam (14) is fixed on the top of the parallel columns (11) on both sides, the I-beam (16) is fixed on the bottom of the track plate beam (14), the track plate beam (14) is two parallel support plates on the left and right, and track grooves (15) are respectively arranged on the two parallel support plates on the left and right; the swing and rotation positioner (2) comprises a fan-shaped cover (21) and a track wheel (23), the lower center position of the fan-shaped cover (21) is provided with an axial hole (22), and the fan-shaped cover (21) is provided with a shaft hole (22). ) are provided with a pair of track wheels (23) at the upper part of the outer wall of the fan surface on both sides, and each track wheel (23) on both sides is sleeved in the corresponding track groove (15); the swing arm assembly (3) includes a swivel seat (31), an elastic pin rod (33) and a roller (35); the left and right side shafts (32) of the swivel seat (31) are respectively matched and sleeved in the shaft hole (22); the lower part of the swivel seat (31) is connected with an elastic pin rod (33); the end of the elastic pin rod (33) is installed with a roller (35) through a wheel frame (34); the roller (35) is sleeved in the groove of the I-beam (16); the upper part of the swivel seat (31) is connected with a connecting sleeve (36); the swivel rod assembly (4) includes a swivel rod (4 1), a half gear (47) and a fan rack (48), the bottom of the rotating rod (41) is rotatably mounted in the connecting sleeve (36), a half gear (47) is installed in the middle of the rotating rod (41), half of the half gear (47) is cylindrical and the other half is a concave gear shape, and a fan rack (48) is fixed on the inner wall of the fan surface on one side of the fan-shaped cover (21), and the half gear (47) is meshed with the fan rack (48); a water film pipe (8) is fixed on the top of the rotating rod (41), and the water film pipe (8) includes a pipe body (81), a side seam (82) and a rear seam (83), the left and right side walls of the pipe body (81) are provided with side seams (82), and the rear side of the pipe body (81) is provided with a rear seam (83) 83), a water pipe joint (84) is fixed at the bottom of the pipe body (81), and the water pipe joint (84) is connected to the high-pressure water supply system. After the water film pipe fitting (8) is fixedly installed on the top of the rotating rod assembly (4), water is supplied through the high-pressure water supply system, and the high-pressure water will be discharged from the left and right side seams (82) and the rear seam (83). The side seams (82) on both sides will form a longitudinal water film that is symmetrical on the left and right, and the rear seam (83) on the rear side will form a transverse water film. Since there is no water pressure on the front side of the water film pipe fitting (8), and the rear side is subjected to the reaction force of the water pressure of the rear seam (83), the water film pipe fitting (8) can push the rotating rod assembly (4), the swing arm assembly (3) and the swing rotation positioner (2) to move forward as a whole.

2. The construction spray dust suppression device according to claim 1, characterized in that: The bracket (1) further comprises an end stopper (17), and the end stopper (17) is respectively installed on the upper parts of the two side columns (11).

3. The construction spray dust suppression device according to claim 1, characterized in that: The swinging and rotating positioner (2) further comprises a buffer pad (24), and the buffer pads (24) are fixed to the inner walls on the left and right sides of the sector cover (21).

4. The construction spray dust suppression device according to claim 1, characterized in that: An inner rotating column (42) is fixed at the bottom of the rotating rod (41) of the rotating rod assembly (4), and the diameter of the inner rotating column (42) is larger than that of the rotating rod (41). The inner rotating column (42) is matched and sleeved in the connecting sleeve (36), and a lower rotating sleeve (43) and an upper rotating sleeve (44) are respectively installed at the bottom and the top of the connecting sleeve (36), so that the upper rotating sleeve (44) can be constrained in the connecting sleeve (36) and can only rotate but not slide axially.

5. The construction spray dust suppression device according to claim 1, characterized in that: A recessed area is provided on the upper portion of the rotating rod (41), a snap ring (46) is sleeved on the outer side of the recessed area, a positioning slider (45) is fixed on the outer side of the snap ring (46), and the left and right side walls of the positioning slider (45) are in contact with the left and right inner walls of the fan-shaped cover (21). When the rotating rod (41) swings, the positioning slider (45) slides along the inner wall of the fan-shaped cover (21).

6. The construction spray dust suppression device according to claim 1, characterized in that: It also comprises a waterwheel (5), wherein a frame (54) is fixed on the top of a vehicle body (51), a water tank (52) is installed in the vehicle frame (54), a function box (53) is arranged at the bottom of the vehicle body (51), and two groups of the spray dust reduction devices are fixed on the left and right sides of the vehicle frame (54), and the two groups of devices are controlled to reciprocate and move alternately.

7. The construction spray dust suppression device according to claim 6, characterized in that: A water supply assembly (6) is installed on the upper side of a water tank (52) of the water truck (5). The water supply assembly (6) comprises a high-pressure water pump (61), a water supply pipe (62), a slide rod (63) and a slip ring (64). The high-pressure water pump (61) is fixed to the top or inner side of the water tank (52). The high-pressure water outlet of the high-pressure water pump (61) is connected to the water pipe joints (84) of two groups of spray dust suppression devices through the water supply pipe (62). At the same time, a slide rod (63) is fixed laterally on the top of the frame (54). A series of slip rings (64) are sleeved on the slide rod (63). The water supply pipes (62) on both sides are respectively sleeved in corresponding slip rings (64) and can slide left and right along with the slip rings (64).

8. The construction spray dust suppression device according to claim 6, characterized in that: A two-way linkage assembly (7) is installed on the upper side of the waterwheel (5). The two-way linkage assembly (7) comprises a traction part (71), a pull rope (72), a guide wheel (73), a front rope roller (74) and a rear rope roller (75). The traction part (71) is located on the side wall of the swinging rotation positioner (2). The middle part of the pull rope (72) is fixed to the traction part (71). The guide wheels (73) are respectively fixed to the front and rear ends of the vehicle frame (54). The front rope roller (74) and the rear rope roller (75) are respectively installed on the rotating shafts of the front and rear wheels. After the front and rear ends of the pull rope (72) pass around the guide wheel (73), the front end is wound around the front rope roller (74) and the rear end is wound around the rear rope roller (75).

Images