Road marking spraying device for road engineering

Abstract

The present invention relates to the technical field of road construction, and in particular to a road marking spraying device for road engineering, comprising a carrying plate, a storage tank fixedly installed on the top of the carrying plate, one end of the storage tank connected to a spray pipe, one end of the spray pipe connected to a box body, the bottom end of the box body is connected to a connecting pipe, the bottom end of the connecting pipe is connected to a spray head, and a suction pump is fixedly installed on the outer wall of the spray pipe. The present invention drives a screw rod to adjust the gap between the block and the discharge port of the spray pipe through a motor B, accurately controls the amount of paint sprayed, adapts to different marking thickness requirements, and improves construction efficiency. The motor A drives the stirring blade to fully stir the raw materials to ensure the quality of the marking line. The circular movement can adjust the angle of the stirring blade, enhance the stirring force when the spray volume is increased, save energy and prevent the paint performance from changing when the spray volume is small, and drives the crushing blade through a belt transmission to crush the paint particles, thereby ensuring spraying stability and reducing blockage and maintenance costs.

Description

Technical Field

[0001] The present invention relates to the technical field of road construction, in particular to a road marking spraying device for road engineering. Background Art

[0002] Road markings are traffic safety devices consisting of various lines, arrows, text, and raised road signs on the road surface. They are white or yellow in color. The function of road traffic markings is to convey standardized information and to control and guide traffic. When drawing road markings, a brushing device is required.

[0003] However, in the use of traditional road marking spraying devices, if the thickness of the road marking spray needs to be changed according to different usage scenarios, construction workers are often required to perform complex manual operations on site, such as manually adjusting the flow valve based on experience. However, this adjustment method lacks precision and requires a lot of time to repeatedly debug the device, which seriously affects the construction progress.

[0004] In view of this, research and improvement are carried out to the existing problems, and a road marking spraying device for road engineering is provided, aiming to solve the problems and improve the practical value through this technology. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and propose a road marking spraying device for road engineering. The present invention drives the screw through motor B to adjust the gap between the block and the discharge port of the spray pipe, accurately controls the paint spraying amount, adapts to different marking thickness requirements, and improves construction efficiency. The stirring blades are driven by motor A to fully stir the raw materials to ensure the quality of the marking line. The circular movement can adjust the angle of the stirring blades, enhance stirring when the spraying amount is large, and save energy and prevent the paint performance from changing when the spraying amount is small. The crushing blades are driven by belt transmission to crush the paint particles, ensure spraying stability, and reduce blockage and maintenance costs.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a road marking spraying device for road engineering, comprising a carrying plate, a material storage tank is fixedly installed on the top of the carrying plate, one end of the material storage tank is connected with a material spraying pipe, one end of the material spraying pipe is connected with a box body, the bottom end of the box body is connected with a connecting pipe, the bottom end of the connecting pipe is connected with a spraying head, a suction pump is fixedly installed on the outer wall of the spraying pipe, a stirring mechanism for stirring the paint is provided inside the material storage tank, a flow control mechanism for controlling the amount of paint sprayed is provided inside the spraying pipe, an angle adjustment mechanism for improving the paint stirring effect is provided on one side of the flow control mechanism, and a crushing mechanism for crushing paint particles is provided at the bottom end of the spraying pipe;

[0007] The stirring mechanism includes a rotating rod A that rotates inside the storage tank, a motor A is installed on the top of the rotating rod A, a rotating rod is rotated on the outer wall of the rotating rod A, and a stirring paddle is fixedly connected to one end of the rotating rod.

[0008] Preferably: the flow control mechanism includes a regulating valve installed on the outer wall of the spray pipe, a sealing ball is provided inside the regulating valve, the top of the sealing ball is fixedly connected to a block, the outer wall of the spray pipe is sleeved with a limit plate, the top of the limit plate is fixedly connected to a guide rod, the outer wall of the guide rod is slid with a ring, a magnet is installed inside the ring, a slide rail is welded to the bottom end of the supporting plate, a screw rod is installed inside the slide rail, a motor B is fixedly installed on the top of the screw rod, the outer wall of the screw rod is threadedly connected to a movable plate, one end of the movable plate is fixedly connected to a fixed plate, the spray head is passed through and fixed inside the fixed plate, one side of the fixed plate is fixedly connected to a connecting rod, and one end of the connecting rod slides on the outer wall of the ring.

[0009] Preferably, the spray heads are provided in a plurality of groups, and the plurality of groups of spray heads are distributed in a linear array along the axial direction of the fixed plate.

[0010] Preferably, the sealing ball is made of ferrite stainless steel, the magnets are provided in multiple groups, and the sealing ball is magnetically connected to the magnets.

[0011] Preferably: the angle adjustment mechanism includes a shell welded to the bottom end of the supporting plate, a rotating shaft is rotated inside the shell, the bottom end of the rotating shaft is fixedly connected to a gear A, a rack is slid through a through groove inside the shell and meshes with the gear A, one end of the rack is welded with a mounting seat A, a mounting seat B is movably mounted on the outer wall of the ring, the mounting seat A and the mounting seat B are rotatably connected through a rotating plate, the outer wall of the rotating shaft located inside the rotating rod A is provided with a gear ring, and one end of the rotating rod is fixedly connected to a gear B meshing with the gear ring.

[0012] Preferably: the crushing mechanism includes a mounting box welded to one side of the supporting plate, a rotating rod B is rotated inside the mounting box, the bottom end of the rotating rod B is fixedly connected to a gear C, the outer wall of the spray pipe is rotated with a gear D that meshes with the gear C, the inside of the spray pipe is fixedly connected to a mounting frame, the top end of the mounting frame is rotated with a fixed seat, the outer wall of the fixed seat is fixedly connected to multiple groups of crushing blades, the top end of the fixed seat is fixedly connected to a limiting rod, the bottom end of the sealing ball is fixedly connected to a sliding rod, and a driving mechanism is provided between the rotating rod A and the rotating rod B.

[0013] Preferably, a sliding groove is provided inside the limiting rod, and both sides of the bottom end of the sliding rod slide inside the sliding groove.

[0014] Preferably, the driving mechanism includes two sets of rotating wheels and belts, the two sets of rotating wheels are respectively sleeved on the outer wall of the rotating rod A and the outer wall of the rotating rod B, and the two sets of rotating wheels are connected by belt transmission.

[0015] Preferably, a motor A is installed on the top of the rotating rod A, and the stirring blades are provided in multiple groups, and the multiple groups of stirring blades are distributed in a circular array along the axial direction of the rotating rod A.

[0016] Preferably, rollers are installed around the bottom of the supporting plate, and a handle is welded to one side of the top of the supporting plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention drives the screw rod to rotate by the motor B, so that the screw rod drives the movable plate to move upward or downward, and the movable plate synchronously drives the fixed plate to move upward or downward, and further the fixed plate drives the connecting rod to move synchronously. The movement of the connecting rod will push the ring to slide on the guide rod, and the guide rod plays a role in limiting the movement direction of the ring, ensuring that it can only make linear motion along the axial direction of the guide rod. Due to the magnetic connection between the sealing ball and the magnet, when the ring slides, the sealing ball will be driven to move synchronously through the magnetic action, and the blocking block will also move with the sealing ball, so that the gap between the blocking block and the discharge port of the spray pipe becomes smaller or larger, thereby reducing or increasing the spraying amount of paint, so that the spraying amount can be automatically adjusted according to the spraying requirements of different roads, and then it can quickly adapt to the diverse requirements of different roads for the marking thickness, realize the precise control of the paint spraying amount, greatly improve the efficiency of the marking thickness adjustment during the construction process, reduce the construction time, improve the overall construction progress, and ensure that the quality of the marking meets the corresponding engineering standards.

[0019] 2. The present invention drives the rotating rod A to rotate through the motor A, so that the stirring blades rotate in a circle around the axis of the rotating rod A, thereby fully stirring the raw materials stored in the storage tank. The shear force generated by the high-speed rotation of the stirring blades can break up and refine the lumps and agglomerates that may exist in the raw materials, ensuring the uniformity of the raw materials, providing a good material basis for subsequent accurate and high-quality marking spraying operations, ensuring that the color and texture of the sprayed markings are uniform, and improving the overall quality and aesthetics of the markings.

[0020] 3. The present invention utilizes the downward movement of the circular ring to drive the synchronous movement of the mounting base B. When the mounting base B moves downward, the rotating plate will change its angle accordingly and drive the mounting base A to move downward as well. The movement of the mounting base A drives the rack, which drives the gear A to rotate. The rotation of the gear A drives the rotating shaft to rotate synchronously. The rotating shaft then drives the ring gear to rotate. The ring gear drives the gear B to rotate. The rotation of the gear B increases the angle of the stirring blade, so that the stirring blade can cover a larger range during the rotation process, the contact area with the coating is increased, and the turning and stirring force of the coating is enhanced, thereby ensuring that a large amount of coating can be evenly mixed, preventing the occurrence of insufficient local mixing, improving the mixing uniformity of the coating, and thus improving the quality of the coating after spraying. Conversely, when the spray volume is small, the smaller stirring angle reduces the contact area between the stirring blade and the coating, reduces the stirring resistance, thereby reducing the energy consumption of the motor A, and at the same time avoids excessive stirring that causes changes in the coating properties, ensuring that a uniform coating can be obtained even under low flow conditions.

[0021] 4. This invention uses a belt drive, with rotating rod A driving rotating rod B, which in turn rotates gears C and D in sequence. Gear D, via a guide rod, drives the ring. Because the magnet is magnetically connected to the sealing ball, the ring drives the sealing ball to rotate. The sealing ball then drives the sliding rod, the limit rod, and the fixed seat in sequence, causing the crushing blades in the spray pipe to rotate at high speed, breaking large paint particles into small ones. This ensures smooth passage of paint through the spray head, maintaining a continuous and stable spraying operation, and improving the quality of the marking and the aesthetic and practicality of the project. This also reduces spray head clogging, reduces equipment failures and maintenance costs, and extends service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a road marking spraying device for road engineering proposed by the present invention;

[0023] Figure 2 This is an enlarged structural diagram of part A of a road marking spraying device for road engineering proposed by the present invention;

[0024] Figure 3 This is a schematic cross-sectional view of a material storage tank of a road marking spraying device for road engineering proposed by the present invention;

[0025] Figure 4 This is an enlarged structural diagram of part B of a road marking spraying device for road engineering proposed by the present invention;

[0026] Figure 5 This is a schematic diagram of the bottom structure of a road marking spraying device for road engineering proposed by the present invention;

[0027] Figure 6 This is an enlarged structural diagram of part C of a road marking spraying device for road engineering proposed by the present invention;

[0028] Figure 7 This is a schematic diagram of the cross-sectional structure of a spray pipe of a road marking spraying device for road engineering proposed by the present invention;

[0029] Figure 8 This is an enlarged structural diagram of part D of a road marking spraying device for road engineering proposed by the present invention;

[0030] Figure 9 This is an enlarged structural diagram of part E of a road marking spraying device for road engineering proposed by the present invention;

[0031] Figure 10 This is a schematic diagram of the enlarged structure of part F of a road marking spraying device for road engineering proposed by the present invention.

[0032] Legend:

[0033] 1. Carrying plate; 2. Storage tank; 3. Spray pipe; 4. Box; 5. Suction pump; 6. Stirring mechanism; 601. Rotating rod A; 602. Motor A; 603. Rotating rod; 604. Stirring blade; 7. Flow control mechanism; 701. Regulating valve; 702. Sealing ball; 703. Blocking block; 704. Limiting plate; 705. Guide rod; 706. Ring; 707. Magnet; 708. Slide rail; 709. Screw; 710. Motor B; 711. Moving plate; 712. Fixed plate; 713. Connecting rod; 8. Angle adjustment mechanism; 801. Shell Body; 802, rotating shaft; 803, gear A; 804, rack; 805, mounting base A; 806, mounting base B; 807, rotating plate; 808, ring gear; 809, gear B; 9, crushing mechanism; 901, mounting box; 902, rotating rod B; 903, gear C; 904, gear D; 905, mounting frame; 906, fixing base; 907, crushing blade; 908, limiting rod; 909, sliding rod; 910, slide; 911, rotating wheel; 912, belt; 10, roller; 11, handle; 12, connecting pipe; 13, spray head. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] See Figures 1 to 10As shown, the present invention provides a road marking spraying device for road engineering, comprising a carrying plate 1, a material storage tank 2 is fixedly mounted on the top of the carrying plate 1, one end of the material storage tank 2 is connected to a material spraying pipe 3, one end of the material spraying pipe 3 is connected to a box body 4, the bottom end of the box body 4 is connected to a connecting pipe 12, the bottom end of the connecting pipe 12 is connected to a material spraying head 13, a suction pump 5 is fixedly mounted on the outer wall of the material spraying pipe 3, a stirring mechanism 6 for stirring the paint is provided inside the material storage tank 2, a flow control mechanism 7 for controlling the amount of paint sprayed is provided inside the material spraying pipe 3, an angle adjustment mechanism 8 for improving the paint stirring effect is provided on one side of the flow control mechanism 7, and a crushing mechanism 9 for crushing paint particles is provided at the bottom end of the internal part of the material spraying pipe 3;

[0036] See Figures 3 and 4 As shown, the stirring mechanism 6 includes a rotating rod A601 rotating inside the storage tank 2, a motor A602 is installed on the top of the rotating rod A601, a rotating rod 603 is rotated on the outer wall of the rotating rod A601, and one end of the rotating rod 603 is fixedly connected to a stirring paddle 604.

[0037] It should be noted that when spraying the marking line, start the motor A602, which drives the rotating rod A601 to rotate, so that the stirring blade 604 rotates in a circle around the axis of the rotating rod A601, so that the raw materials stored in the storage tank 2 can be fully stirred. The shear force generated by the high-speed rotation of the stirring blade 604 can break up and refine the lumps and agglomerates that may exist in the raw materials, ensuring the uniformity of the raw materials, and providing a good material basis for the subsequent accurate and high-quality marking spraying operations, ensuring that the color and texture of the sprayed markings are uniform, and improving the overall quality and aesthetics of the markings.

[0038] See Figures 1 to 8 As shown, the flow control mechanism 7 includes a regulating valve 701 installed on the outer wall of the injection pipe 3, a sealing ball 702 is provided inside the regulating valve 701, and a blocking block 703 is fixedly connected to the top of the sealing ball 702. The outer wall of the injection pipe 3 is sleeved with a limit plate 704, and a guide rod 705 is fixedly connected to the top of the limit plate 704. A circular ring 706 is slidably provided on the outer wall of the guide rod 705, and a magnet 707 is installed inside the circular ring 706. A slide rail 708 is welded to the bottom end of the supporting plate 1, and a screw rod 709 is installed inside the slide rail 708. A motor B710 is fixedly installed on the top of the screw rod 709. A movable plate 711 is threadedly connected to the outer wall of the screw rod 709, and one end of the movable plate 711 is fixedly connected to the fixed plate 712. The injection head 13 is fixed through the inside of the fixed plate 712, and a connecting rod 713 is fixedly connected to one side of the fixed plate 712. One end of the connecting rod 713 slides on the outer wall of the circular ring 706.

[0039] See Figure 2As shown, there are multiple groups of spray heads 13 , and the multiple groups of spray heads 13 are distributed in a linear array along the axial direction of the fixing plate 712 .

[0040] See Figure 8 As shown, the sealing ball 702 is made of ferrite stainless steel, the number of magnets 707 is provided in multiple groups, and the sealing ball 702 is magnetically connected to the magnets 707.

[0041] It should be noted that when it is necessary to deal with scenarios with lower requirements for marking line thickness such as community roads and sidewalks, first start motor B710 forward rotation, motor B710 drives screw rod 709 to rotate, so that screw rod 709 drives movable plate 711 to move upward, movable plate 711 synchronously drives fixed plate 712 to move upward, further fixed plate 712 drives connecting rod 713 to move upward, and the upward movement of connecting rod 713 will push the circular ring 706 to slide upward on guide rod 705, and guide rod 705 plays the role of limiting the movement direction of circular ring 706, ensuring that it can only move linearly along the axial direction of guide rod 705, due to the magnetic connection between sealing ball 702 and magnet 707, when circular ring 706 slides upward, the sealing ball 702 will be driven to move upward synchronously by magnetic force, and block 703 will also move upward with sealing ball 702, so that the gap between block 703 and the discharge port of spray pipe 3 becomes smaller, thereby reducing the amount of paint sprayed. On the contrary, when encountering a scenario where thicker markings need to be sprayed, such as the main lane markings of highways, the driving lane markings of large parking lots, etc., the motor B710 is started to reverse, and the movable plate 711 drives the connecting rod 713 to move downward, thereby causing the ring 706 to slide downward on the guide rod 705. Similarly, due to the magnetic connection, the sealing ball 702 and the block 703 will move downward accordingly, increasing the gap between the block 703 and the discharge port of the spray pipe 3, and increasing the amount of paint sprayed. Therefore, the device can automatically adjust the spraying amount according to the spraying requirements of different roads, and can quickly adapt to the diverse requirements of different roads for the thickness of the markings, thereby realizing precise control of the amount of paint sprayed, greatly improving the efficiency of adjusting the thickness of the markings during construction, reducing construction time, improving the overall construction progress, and ensuring that the quality of the markings meets the corresponding engineering standards.

[0042] In addition, when the road marking spraying needs of the previous scene are completed, the device can quickly and automatically adapt to the road marking spraying needs of the next scene without manual intervention and adjustment, and promptly meet the road marking spraying needs of the next scene, ensuring that road marking construction can quickly and smoothly transition from one scene to the next, effectively guaranteeing the overall construction progress.

[0043] See Figures 3 to 6As shown, the angle adjustment mechanism 8 includes a shell 801 welded to the bottom end of the supporting plate 1, a rotating shaft 802 is rotated inside the shell 801, and the bottom end of the rotating shaft 802 is fixedly connected to a gear A803, and a rack 804 meshing with the gear A803 is slid through a through groove inside the shell 801, and a mounting seat A805 is welded to one end of the rack 804, and a mounting seat B806 is movably mounted on the outer wall of the ring 706, and the mounting seat A805 and the mounting seat B806 are rotatably connected through a rotating plate 807, and the outer wall of the rotating shaft 802 located inside the rotating rod A601 is provided with a gear ring 808, and one end of the rotating rod 603 is fixedly connected to a gear B809 meshing with the gear ring 808.

[0044] It should be noted that when the ring 706 moves downward, the ring 706 drives the mounting seat B806 to move downward synchronously. When the mounting seat B806 moves downward, the rotating plate 807 will change its angle accordingly and drive the mounting seat A805 to move downward as well. The mounting seat A805 is welded to one end of the rack 804, so the movement of the mounting seat A805 will directly drive the rack 804 to slide in the through groove inside the shell 801. Since the rack 804 and the gear A803 are meshed with each other, when the rack 804 slides, it will apply a circumferential driving force to the gear A803, causing the gear A803 to start rotating. The rotation of the gear A803 will drive the rotating shaft 802 to rotate synchronously, and the rotating shaft 802 will drive the gear ring 808 to rotate. One end of the rotating rod 603 is fixedly connected Gear B809, which meshes with ring gear 808, interacts with gear B809 when ring gear 808 rotates, driving gear B809 to rotate. When gear B809 rotates, it drives stirring blade 604 to a certain angle through the rotating rod 603 connected to it, causing the angle of stirring blade 604 to increase. At this time, the angle of stirring blade 604 increases. When the ring 706 moves downward, it indicates that the amount of paint sprayed is large. Adjusting the angle of stirring blade 604 increases the area of contact with the paint during rotation, increasing the turning and stirring force of the paint, thereby ensuring that a large amount of paint can be evenly mixed, preventing localized incomplete mixing, improving the mixing uniformity of the paint, and thus improving the quality of the paint after spraying. Conversely, when the spray volume is small, a smaller stirring angle reduces the contact area between stirring blade 604 and the paint, reducing the stirring resistance, thereby reducing the energy consumption of motor A602, while also preventing excessive stirring from changing the paint properties, and ensuring that a uniform paint can be obtained even under low flow conditions.

[0045] See Figures 7 to 10As shown, the crushing mechanism 9 includes an installation box 901 welded to one side of the supporting plate 1, a rotating rod B902 is rotated inside the installation box 901, and the bottom end of the rotating rod B902 is fixedly connected to a gear C903, and the outer wall of the spray pipe 3 is rotated with a gear D904 engaged with the gear C903, and the interior of the spray pipe 3 is fixedly connected with a mounting frame 905, and the top of the mounting frame 905 is rotated with a fixed seat 906, and the outer wall of the fixed seat 906 is fixedly connected with multiple groups of crushing blades 907, and the top of the fixed seat 906 is fixedly connected to a limiting rod 908, and the bottom end of the sealing ball 702 is fixedly connected to a sliding rod 909, and a driving mechanism is provided between the rotating rod A601 and the rotating rod B902.

[0046] See Figure 10 As shown, a sliding groove 910 is provided inside the limiting rod 908 , and both sides of the bottom end of the sliding rod 909 slide inside the sliding groove 910 .

[0047] See Figure 7 As shown, the driving mechanism includes two sets of rotating wheels 911 and a belt 912. The two sets of rotating wheels 911 are respectively sleeved on the outer wall of the rotating rod A601 and the outer wall of the rotating rod B902. The two sets of rotating wheels 911 are connected by the belt 912.

[0048] It should be noted that when the rotating rod A601 rotates, the rotating wheel 911 connected thereto rotates accordingly, and through the transmission effect of the belt 912, the rotating rod B902 is driven to rotate synchronously. The rotation of the rotating rod B902 causes the gear C903 to also start to rotate. Due to the meshing relationship between the gear C903 and the gear D904, the gear C903 drives the gear D904 to rotate. When the gear D904 rotates, the gear D904 drives the ring 706 to rotate through the guide rod 705. Since the magnet 707 is magnetically connected to the sealing ball 702, the ring 706 drives the sealing ball 702 to rotate, and further the sealing ball 70 2 drives the sliding rod 909 at its bottom to rotate, which in turn drives the limiting rod 908 to rotate, thereby rotating the fixed seat 906. The rotation of the fixed seat 906 drives the crushing blades 907 to rotate inside the spray pipe 3. The rapidly rotating crushing blades 907 can effectively crush larger particles in the paint, breaking them into smaller particles that can pass smoothly through the spray head 13, ensuring smooth spraying of the paint, ensuring the continuity and stability of the road marking spraying operation, improving the quality of the road marking spraying, making the sprayed markings more uniform and clear, and enhancing the aesthetics and practicality of the entire road project. At the same time, it reduces the equipment maintenance and cleaning work caused by the blockage of the spray head 13, reduces the equipment failure rate and maintenance costs, and extends the equipment life.

[0049] See Figure 3As shown, a motor A602 is installed on the top of the rotating rod A601, and there are multiple groups of stirring paddles 604. The multiple groups of stirring paddles 604 are distributed in a circular array along the axis of the rotating rod A601, which can stir the paint in different areas at the same time, greatly shortening the time required for the paint to be evenly mixed.

[0050] See Figure 1 As shown, rollers 10 are installed around the bottom of the carrying plate 1, and a handle 11 is welded to one side of the top of the carrying plate 1.

[0051] Working principle: When spraying the marking line, start the motor A602, which drives the rotating rod A601 to rotate, so that the stirring blade 604 rotates in a circle around the axis of the rotating rod A601, so that the raw materials stored in the storage tank 2 can be fully stirred. The shear force generated by the high-speed rotation of the stirring blade 604 can break up and refine the lumps and agglomerates that may exist in the raw materials, ensuring the uniformity of the raw materials, providing a good material basis for the subsequent accurate and high-quality marking spraying operation, ensuring the uniform color and texture of the sprayed markings, and improving the overall quality and aesthetics of the markings;

[0052] When it is necessary to deal with scenarios with lower requirements for marking line thickness, such as community roads and sidewalks, first start motor B710 forward rotation. Motor B710 drives screw rod 709 to rotate, so that screw rod 709 drives movable plate 711 to move upward, and movable plate 711 synchronously drives fixed plate 712 to move upward. Further, fixed plate 712 drives connecting rod 713 to move upward, and the upward movement of connecting rod 713 will push the circular ring 706 to slide upward on guide rod 705. Guide rod 705 plays the role of limiting the movement direction of circular ring 706, ensuring that it can only move linearly along the axial direction of guide rod 705. Due to the magnetic connection between sealing ball 702 and magnet 707, when circular ring 706 slides upward, the sealing ball 702 will be driven to move upward synchronously by magnetic force, and block 703 will also move upward with sealing ball 702, so that the gap between block 703 and the discharge port of spray pipe 3 becomes smaller, thereby reducing the amount of paint sprayed. On the contrary, when encountering a scenario where thicker markings need to be sprayed, such as the main lane markings of highways, the lane markings of large parking lots, etc., the motor B710 is started to reverse, and the movable plate 711 drives the connecting rod 713 to move downward, thereby causing the ring 706 to slide downward on the guide rod 705. Similarly, due to the magnetic connection, the sealing ball 702 and the blocking block 703 will move downward accordingly, increasing the gap between the blocking block 703 and the discharge port of the spray pipe 3, thereby increasing the spraying amount of paint. Therefore, the device can automatically adjust the spraying amount according to the spraying requirements of different roads, and thus can quickly adapt to the diverse requirements of different roads for the thickness of the markings, thereby realizing the precise control of the paint spraying amount, greatly improving the efficiency of the marking thickness adjustment during the construction process, reducing the construction time, improving the overall construction progress, and ensuring that the quality of the markings meets the corresponding engineering standards.

[0053] In addition, when the ring 706 moves downward, the ring 706 drives the mounting seat B806 to move downward synchronously. When the mounting seat B806 moves downward, the rotating plate 807 will change its angle accordingly and drive the mounting seat A805 to move downward as well. The mounting seat A805 is welded to one end of the rack 804, so the movement of the mounting seat A805 will directly drive the rack 804 to slide in the through groove inside the shell 801. Since the rack 804 and the gear A803 are meshed with each other, when the rack 804 slides, it will apply a circumferential driving force to the gear A803, causing the gear A803 to start rotating. The rotation of the gear A803 will drive the rotating shaft 802 to rotate synchronously, and the rotating shaft 802 will drive the gear ring 808 to rotate. One end of the rotating rod 603 is fixedly connected to the gear Ring 808 meshes with gear B809. When ring gear 808 rotates, it interacts with gear B809, driving gear B809 to rotate. When gear B809 rotates, it drives the stirring blade 604 to rotate to a certain angle through the rotating rod 603 connected to it, causing the angle of the stirring blade 604 to increase. At this time, the angle of the stirring blade 604 increases. When the ring 706 moves downward, it means that the amount of paint sprayed is large. Adjusting the angle of the stirring blade 604 to a larger range during rotation increases the contact area with the paint, and strengthens the turning and stirring force of the paint, thereby ensuring that a large amount of paint can be evenly mixed, preventing the occurrence of insufficient local mixing, improving the mixing uniformity of the paint, and thus improving the quality of the paint after spraying. Conversely, when the spray volume is small, a smaller stirring angle reduces the contact area between the stirring blade 604 and the paint, reducing the stirring resistance, thereby reducing the energy consumption of motor A602, and at the same time avoiding changes in the paint properties caused by excessive stirring, ensuring that a uniform paint can be obtained even under low flow conditions;

[0054] At the same time, when the rotating rod A601 rotates, the rotating wheel 911 connected thereto rotates accordingly, and through the transmission action of the belt 912, the rotating rod B902 is driven to rotate synchronously. The rotation of the rotating rod B902 causes the gear C903 to also start to rotate. Due to the meshing relationship between the gear C903 and the gear D904, the gear C903 drives the gear D904 to rotate. When the gear D904 rotates, the gear D904 drives the ring 706 to rotate through the guide rod 705. Since the magnet 707 is magnetically connected to the sealing ball 702, the ring 706 drives the sealing ball 702 to rotate, and the sealing ball 702 further drives the sealing ball 702 to rotate. The sliding rod 909 at the bottom rotates, which in turn drives the limiting rod 908 to rotate, thereby rotating the fixed seat 906. The rotation of the fixed seat 906 drives the crushing blades 907 to rotate inside the spray pipe 3. The rapidly rotating crushing blades 907 can effectively crush larger particles in the paint, breaking them into smaller particles so that they can pass smoothly through the spray head 13, ensuring smooth spraying of the paint, ensuring the continuity and stability of the road marking spraying operation, improving the quality of the road marking spraying, making the sprayed markings more uniform and clear, and enhancing the aesthetics and practicality of the entire road project. At the same time, the equipment maintenance and cleaning work caused by the blockage of the spray head 13 is reduced, reducing the equipment failure rate and maintenance costs, and extending the service life of the equipment.

[0055] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A road marking spraying device for road engineering, comprising a bearing plate (1), characterized in that: A material storage tank (2) is fixedly mounted on the top of the supporting plate (1), one end of the material storage tank (2) is connected to a material spraying pipe (3), one end of the material spraying pipe (3) is connected to a box (4), the bottom end of the box (4) is connected to a connecting pipe (12), the bottom end of the connecting pipe (12) is connected to a material spraying head (13), a suction pump (5) is fixedly mounted on the outer wall of the material spraying pipe (3), a stirring mechanism (6) for stirring the paint is provided inside the material storage tank (2), a flow control mechanism (7) for controlling the amount of paint sprayed is provided inside the material spraying pipe (3), an angle adjustment mechanism (8) for improving the paint stirring effect is provided on one side of the flow control mechanism (7), and a crushing mechanism (9) for crushing paint particles is provided at the bottom end of the interior of the material spraying pipe (3); The flow control mechanism (7) includes a regulating valve (701) installed on the outer wall of the injection pipe (3), a sealing ball (702) is provided inside the regulating valve (701), a blocking block (703) is fixedly connected to the top of the sealing ball (702), a limiting plate (704) is sleeved on the outer wall of the injection pipe (3), a guide rod (705) is fixedly connected to the top of the limiting plate (704), a circular ring (706) is slidably provided on the outer wall of the guide rod (705), a magnet (707) is installed inside the circular ring (706), and a slide rail (708) is welded to the bottom end of the supporting plate (1). A screw rod (709) is installed inside the slide rail (708), a motor B (710) is fixedly installed on the top of the screw rod (709), a movable plate (711) is threadedly connected to the outer wall of the screw rod (709), one end of the movable plate (711) is fixedly connected to a fixed plate (712), the spray head (13) is fixed inside the fixed plate (712), one side of the fixed plate (712) is fixedly connected to a connecting rod (713), one end of the connecting rod (713) slides on the outer wall of the ring (706), and the sealing ball (702) is magnetically connected to the magnet (707); The stirring mechanism (6) comprises a rotating rod A (601) rotating inside the storage tank (2), a rotating rod (603) rotating on the outer wall of the rotating rod A (601), and a stirring blade (604) fixedly connected to one end of the rotating rod (603).

2. A road marking spraying device for road engineering according to claim 1, characterized in that: The spray heads (13) are provided in a plurality of groups, and the plurality of groups of spray heads (13) are distributed in a linear array along the axial direction of the fixed plate (712).

3. A road marking spraying device for road engineering according to claim 1, characterized in that: The sealing ball (702) is made of ferrite stainless steel, and the magnets (707) are provided in multiple groups.

4. A road marking spraying device for road engineering according to claim 1, characterized in that: The angle adjustment mechanism (8) comprises a housing (801) welded to the bottom end of the bearing plate (1), a rotating shaft (802) is rotatably provided inside the housing (801), a gear A (803) is fixedly connected to the bottom end of the rotating shaft (802), a rack (804) is slidably provided inside the housing (801) through a through groove and meshed with the gear A (803), a mounting seat A (805) is welded to one end of the rack (804), a mounting seat B (806) is movably provided on the outer wall of the ring (706), the mounting seat A (805) and the mounting seat B (806) are rotatably connected via a rotating plate (807), a gear ring (808) is sleeved on the outer wall of the rotating shaft (802) located inside the rotating rod A (601), and a gear B (809) is fixedly connected to one end of the rotating rod (603) and meshed with the gear ring (808).

5. The road marking spraying device for road engineering according to claim 1, characterized in that: The crushing mechanism (9) includes a mounting box (901) welded to one side of the supporting plate (1), a rotating rod B (902) is rotated inside the mounting box (901), a gear C (903) is fixedly connected to the bottom end of the rotating rod B (902), a gear D (904) meshing with the gear C (903) is rotated on the outer wall of the spraying pipe (3), a mounting frame (905) is fixedly connected inside the spraying pipe (3), a fixed seat (906) is rotated on the top end of the mounting frame (905), a plurality of groups of crushing blades (907) are fixedly connected to the outer wall of the fixed seat (906), a limiting rod (908) is fixedly connected to the top end of the fixed seat (906), a sliding rod (909) is fixedly connected to the bottom end of the sealing ball (702), and a driving mechanism is provided between the rotating rod A (601) and the rotating rod B (902).

6. A road marking spraying device for road engineering according to claim 5, characterized in that: A sliding groove (910) is provided inside the limiting rod (908), and both sides of the bottom end of the sliding rod (909) slide inside the sliding groove (910).

7. A road marking spraying device for road engineering according to claim 5, characterized in that: The driving mechanism comprises two sets of rotating wheels (911) and a belt (912). The two sets of rotating wheels (911) are respectively sleeved on the outer wall of the rotating rod A (601) and the outer wall of the rotating rod B (902). The two sets of rotating wheels (911) are connected to each other through the belt (912).

8. The road marking spraying device for road engineering according to claim 1, characterized in that: The stirring blades (604) are provided in a plurality of groups, and the plurality of groups of stirring blades (604) are distributed in a circular array along the axial direction of the rotating rod A (601).

9. A road marking spraying device for road engineering according to claim 1, characterized in that: Rollers (10) are installed around the bottom of the carrier plate (1), and a handle (11) is welded to one side of the top end of the carrier plate (1).

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