A pavement marking device for construction work
By designing a lime mixing and feeding mechanism, the problem of lime powder clumping causing poor descent was solved, ensuring uniform descent of lime powder and marking quality, making it suitable for use on uneven ground.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JISCO GRP BUILDING ENG & MANAGEMENT CONSULTING CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-26
AI Technical Summary
In existing technologies, lime powder tends to clump together in marking equipment, causing it to fall unevenly and affecting the marking quality.
A road marking device for construction engineering was designed, which includes a lime mixing mechanism and a feeding mechanism. The device uses components such as a mixing rod, a rolling roller and a filter screen to ensure that the lime powder falls evenly. Adhesive powder is removed by a scraper plate, conveying blades are used for conveying, and rotating balls and guide tables adjust the device to move stably on uneven ground to ensure the quality of the marking.
It achieves uniform falling and stable conveying of lime powder, improving the quality and accuracy of line marking and adapting to different ground conditions.
Smart Images

Figure CN224412284U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road construction technology, specifically a road marking device for building engineering. Background Technology
[0002] Existing technologies for marking lines on the ground typically involve placing lime powder inside a marking device, where the powder falls evenly to achieve the marking purpose. However, this method has the following problems in actual use: First, if the lime powder clumps inside the box, it cannot fall normally and may block the falling channel, thus affecting the falling of the lime powder and the quality of the marking. Therefore, to address the above problems, a road marking device for building engineering is proposed. Utility Model Content
[0003] The purpose of this invention is to provide a road marking device for construction projects, which ensures that lime powder falls evenly and ensures the quality of the marking.
[0004] This utility model discloses a road marking device for construction engineering, comprising a frame and a handle. Four wheels are rotatably connected to the bottom of the frame. The handle is fixedly connected to the rear side of the top surface of the frame and is angled. The device includes a lime mixing mechanism and a feeding mechanism. The lime mixing mechanism is fixedly located at the front of the frame and includes a mixing box, a motor, a mixing rod, a filter screen, a rolling roller, and a connecting column. The mixing box is fixedly connected to the front of the frame, with its lower end positioned below the frame. The mixing box includes a straight pipe section and a funnel section, which are coaxial. The funnel section is fixedly connected to the lower end of the straight pipe section, which is fixedly connected to the frame. The bottom of the funnel section... The mixing tank has a discharge hole at one end. The motor is fixedly connected to the outer wall of the top surface of the straight pipe section. The motor output shaft passes through the top surface of the straight pipe section and extends into the interior of the mixing tank. The outer wall of the filter screen is fixedly connected to the inner wall of the straight pipe section. The stirring rod is fixedly connected to the motor output shaft and is located inside the straight pipe section. The stirring rod is coaxial with the straight pipe section. The connecting column is fixedly connected to the side wall of the stirring rod. The rolling roller is fixedly connected to the end of the connecting column away from the stirring rod. The rolling roller is coaxial with the connecting column and is located above the filter screen. There is a gap between the rolling roller and the filter screen. The top wall of the straight pipe section of the mixing tank has a feed inlet.
[0005] Furthermore, the lower part of the stirring rod passes through the filter screen, and the filter screen has holes for the stirring rod to pass through. A connecting rod is fixedly connected to the lower end of the stirring rod that passes through the filter screen. The connecting rod is coaxial with the stirring rod and is located below the filter screen. A conveying shaft is fixedly connected to the lower end of the connecting rod. The conveying shaft is coaxial with the connecting rod. Conveying blades are provided on the outer wall of the conveying shaft. The conveying blades are spirally arranged along the axial direction of the conveying shaft. A feeding mechanism is included, which includes a feeding pipe. The feeding pipe is fixedly connected to the feeding hole at the bottom of the funnel section, and the conveying blades are rotatably connected to the feeding pipe.
[0006] Furthermore, the lime mixing mechanism includes a scraper plate, one end of which is fixedly connected to the outer wall of the mixing rod. The scraper plate is positioned above the filter screen and rotates with the mixing rod, connecting to the top surface of the filter screen.
[0007] Furthermore, the cross-sectional shape of the removal plate is a right triangle, with the hypotenuse of the right triangle facing the direction of rotation.
[0008] Furthermore, the feeding mechanism includes a marking tube, a mounting frame, and a rotating ball. The upper end of the marking tube is inserted into the feeding tube, and the lower end of the marking tube extends out of the feeding tube. The mounting frame has a marking hole, and the lower end of the marking tube extending out of the feeding tube is fixedly connected to the upper part of the marking hole in the mounting frame. The lower part of the marking hole in the mounting frame is inclined towards the ground. The rotating ball is rotatably connected to the bottom surface of the mounting frame. The bottom surface of the mounting frame has a groove for the rotating ball to rotatably connect. The rotating ball is rotatably connected to the ground.
[0009] Furthermore, the feeding mechanism includes a guide platform, a limiting ring, and a spring. The guide platform is fixedly connected to the outer wall of the upper end of the marking tube, the limiting ring is fixedly connected to the inner wall of the lower end of the feeding tube, the marking tube is slidably connected inside the limiting ring, the guide platform is slidably connected inside the feeding tube, the spring is sleeved on the outer side of the marking tube, the upper end of the spring is fixedly connected to the bottom surface of the guide platform, and the lower end of the spring is fixedly connected to the top surface of the limiting ring.
[0010] Furthermore, a lime container is fixedly connected to the rear side of the frame, and a handle is tilted above the lime container.
[0011] The beneficial effects of this utility model are as follows: When using this utility model, lime powder is put into the mixing tank. The motor is started to drive the stirring rod to rotate, which in turn drives the connecting column to rotate. The connecting column drives the crushing roller to crush the lumps of lime located above the filter screen. The crushed lime then falls through the filter screen, ensuring that the lime powder falls evenly and ensuring the quality of the marking. When crushing the lime lumps, the lime powder may adhere to the surface of the filter screen. At this time, it can be scooped up by the scraper plate, which helps the lime powder fall. The set conveyor shaft and conveyor blades can realize the stable conveying of lime powder. When the equipment moves, some ground is not flat. At this time, the set rotating ball can ensure the stable movement of the mounting frame. At the same time, the marking tube and guide table can be adjusted up and down under the action of springs to ensure accurate marking on uneven ground. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a partial structural schematic diagram of the lime mixing mechanism of this utility model;
[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the removal plate of this utility model;
[0015] Figure 4 This is a partial structural diagram of the feeding mechanism of this utility model.
[0016] In the diagram: 1. Frame; 2. Handle; 3. Lime mixing mechanism; 301. Mixing box; 302. Motor; 303. Mixing rod; 304. Filter screen; 305. Compactor roller; 306. Connecting column; 307. Shovel plate; 308. Connecting rod; 309. Conveying shaft; 310. Conveying blade; 311. Feed inlet; 4. Discharge mechanism; 401. Discharge pipe; 402. Guide table; 403. Limiting ring; 404. Spring; 405. Marking tube; 406. Mounting frame; 407. Rotating ball. Detailed Implementation
[0017] like Figures 1-4 As shown, this utility model discloses a road marking device for construction engineering, comprising a frame 1 and a handle 2. Four wheels are rotatably connected to the bottom surface of the frame 1. The handle 2 is fixedly connected to the rear side of the top surface of the frame 1 and is inclined. The device includes a lime mixing mechanism 3 and a feeding mechanism 4. The lime mixing mechanism 3 is fixedly located at the front of the frame 1 and includes a mixing box 301, a motor 302, a mixing rod 303, a filter screen 304, a rolling roller 305, and a connecting column 306. The mixing box 301 is fixedly connected to the front of the frame 1, with its lower end positioned below the frame 1. The mixing box 301 includes a straight pipe section and a funnel section, which are coaxial. The funnel section is fixedly connected to the lower end of the straight pipe section, which is fixedly connected to the frame 1. The bottom end of the funnel section has a feeding hole. The motor 302 is fixedly connected to the outer wall of the top surface of the straight pipe section of the mixing box 301. The output shaft of motor 302 passes through the top surface of the straight pipe section of mixing tank 301. The output shaft of motor 302 extends into the interior of mixing tank 301. The outer wall of filter screen 304 is fixedly connected to the inner wall of the straight pipe section of mixing tank 301. The stirring rod 303 is fixedly connected to the output shaft of motor 302. The stirring rod 303 is located inside the straight pipe section of mixing tank 301 and is coaxial with the straight pipe section of mixing tank 301. The connecting column 306 is fixedly connected to the side wall of stirring rod 303. The rolling roller 305 is fixedly connected to the end of connecting column 306 away from stirring rod 303. The rolling roller 305 is coaxial with connecting column 306 and is located above filter screen 304. There is a gap between rolling roller 305 and filter screen 304. The top wall of the straight pipe section of mixing tank 301 is provided with feed inlet 311. A lime container is fixedly connected to the rear side of the frame 1, and the handle 2 is tilted above the lime container.
[0018] Lime is added into the mixing tank 301 through the feed inlet 311. The motor 302 is started to drive the stirring rod 303 to rotate. The stirring rod 303 drives the connecting column 306 to rotate. The connecting column 306 drives the crushing roller 305 to crush the lumps of lime located above the filter screen 304. The lime then falls through the filter screen 304 to ensure that the lime powder falls evenly. After passing through the filter screen 304, the lime powder is spread on the bottom surface through the discharge hole at the bottom of the funnel section to ensure the quality of the marking.
[0019] It should be noted that while the roller 305 can crush lumps of lime, it cannot crush large particles such as stones. For these large particles, on the one hand, screening and pretreatment are required before adding lime to the mixing tank 301, and on the other hand, manual removal is required after the marking work is completed.
[0020] In addition, to ensure the structural strength and stable support of the filter screen 304, a steel plate with a certain thickness can be used to process the filter screen 304, or reinforcing ribs can be added to the bottom surface of the filter screen 304.
[0021] The lower part of the stirring rod 303 passes through the filter screen 304. The filter screen 304 has a hole for the stirring rod 303 to pass through. The lower end of the stirring rod 303 passing through the filter screen 304 is fixedly connected to a connecting rod 308. The connecting rod 308 is coaxial with the stirring rod 303 and is located below the filter screen 304. The lower end of the connecting rod 308 is fixedly connected to a conveying shaft 309. The conveying shaft 309 is coaxial with the connecting rod 308. The outer wall of the conveying shaft 309 is provided with conveying blades 310, which are spirally arranged along the axial direction of the conveying shaft 309. The feeding mechanism 4 includes a feeding pipe 401, which is fixedly connected to the feeding hole at the bottom of the funnel section. The conveying blades 310 are rotatably connected to the feeding pipe 401.
[0022] The rotation of motor 302 drives the rotation of stirring rod 303, which in turn drives the rotation of connecting rod 308. The rotation of connecting rod 308 drives the rotation of conveying shaft 309 and conveying blade 310. The rotation of conveying blade 310 allows lime to pass smoothly through the discharge pipe 401. This utility model, through the arrangement of conveying shaft 309 and conveying blade 310, allows lime to pass smoothly through the discharge pipe 401, preventing lime from piling up above the discharge pipe 401 and causing blockage.
[0023] It is important to pay attention to the spiral direction of the conveying blade 310 to ensure that the conveying blade 310 conveys the lime in the feed pipe 401 downwards when the motor 302 is rotating.
[0024] The lime mixing mechanism 3 includes a scraper plate 307. One end of the scraper plate 307 is fixedly connected to the outer wall of the mixing rod 303. The scraper plate 307 is located above the filter screen 304 and rotates with the mixing rod 303 to be connected to the top surface of the filter screen 304. The cross-sectional shape of the scraper plate 307 is a right triangle, and the hypotenuse of the right triangle of the scraper plate 307 faces the direction of rotation.
[0025] When crushing lime blocks, lime powder may adhere to the surface of the filter screen 304. At this time, the lime powder on the surface of the filter screen 304 can be scraped off by the scraper plate 307, which helps the lime powder fall. The hypotenuse of the right triangle of the scraper plate 307 faces the direction of rotation, which makes the scraper plate 307 more effective at scraping off the lime powder.
[0026] The feeding mechanism 4 includes a marking tube 405, a mounting frame 406, and a rotating ball 407. The upper end of the marking tube 405 is inserted into the feeding tube 401, and the lower end of the marking tube 405 extends out of the lower end of the feeding tube 401. The mounting frame 406 is provided with a marking hole. The lower end of the marking tube 405 extending out of the feeding tube 401 is fixedly connected to the upper part of the marking hole in the mounting frame 406. The lower part of the marking hole in the mounting frame 406 is inclined towards the ground. The rotating ball 407 is rotatably connected to the bottom surface of the mounting frame 406. The bottom surface of the mounting frame 406 is provided with a groove for the rotating ball 407 to rotatably connect. The rotating ball 407 is rotatably connected to the ground.
[0027] The marking quality is improved by setting up a marking tube 405 and a mounting frame 406. The lime powder is fed through the feeding pipe 401 to the marking tube 405. The marking tube 405 is spread on the bottom surface through the marking holes in the mounting frame 406. The setting of the marking tube 405 and the mounting frame 406 makes the lime powder spread closer to the ground. The rotating ball 407 ensures that the mounting frame 406 moves stably and is easy to turn.
[0028] The feeding mechanism 4 includes a guide table 402, a limiting ring 403, and a spring 404. The guide table 402 is fixedly connected to the outer wall of the upper end of the marking tube 405, the limiting ring 403 is fixedly connected to the inner wall of the lower end of the feeding tube 401, the marking tube 405 is slidably connected inside the limiting ring 403, the guide table 402 is slidably connected inside the feeding tube 401, and the spring 404 is sleeved on the outer side of the marking tube 405. The upper end of the spring 404 is fixedly connected to the bottom surface of the guide table 402, and the lower end of the spring 404 is fixedly connected to the top surface of the limiting ring 403.
[0029] When the rotating ball 407 passes over the protruding ground, the rotating ball 407 causes the mounting frame 406 to move upward, the mounting frame 406 causes the marking tube 405 to move upward, the marking tube 405 causes the guide table 402 to move upward, and the upward movement of the guide table 402 stretches the spring 404. When the rotating ball 407 returns from the protruding ground to the flat ground, due to the gravity of the mounting frame 406 and the action of the spring 404, the marking tube 405 and the guide table 402 fall down.
[0030] When the rotating ball 407 passes through the concave ground, the rotating ball 407 causes the mounting frame 406 to move down, the mounting frame 406 causes the marking tube 405 to move down, the marking tube 405 causes the guide table 402 to move down, and the guide table 402 moves down, which compresses the spring 404. When the rotating ball 407 returns from the concave ground to the flat ground, the marking tube 405 and the guide table 402 rise up due to the action of the spring 404.
[0031] The guide platform 402, the limiting ring 403, and the spring 404 are designed to address uneven ground surfaces, ensuring that the rotating ball 407 always contacts the ground and thus guaranteeing the quality of the marking.
Claims
1. A road marking device for construction engineering, comprising a frame (1) and a handle (2), wherein four wheels are rotatably connected to the bottom surface of the frame (1), and the handle (2) is fixedly connected to the rear side of the top surface of the frame (1), and the handle (2) is inclined, characterized in that: The system includes a lime mixing mechanism (3) and a feeding mechanism (4). The lime mixing mechanism (3) is fixedly installed on the front side of the frame (1). The lime mixing mechanism (3) includes a mixing box (301), a motor (302), a mixing rod (303), a filter screen (304), a rolling roller (305), and a connecting column (306). The mixing box (301) is fixedly connected to the front side of the frame (1). The lower end of the mixing box (301) is located below the frame (1). The mixing box (301) includes a straight pipe section and a funnel section. The straight pipe section and the funnel section are coaxial. The funnel section is fixedly connected to the lower end of the straight pipe section. The straight pipe section is fixedly connected to the frame (1). The bottom end of the funnel section is provided with a feeding hole. The motor (302) is fixedly connected to the outer wall of the top surface of the straight pipe section of the mixing box (301). The output shaft of the motor (302) passes through the top surface of the straight pipe section of the mixing box (301). The output shaft of the machine (302) extends into the interior of the mixing tank (301). The outer wall of the filter screen (304) is fixedly connected to the inner wall of the straight pipe section of the mixing tank (301). The stirring rod (303) is fixedly connected to the output shaft of the motor (302). The stirring rod (303) is located inside the straight pipe section of the mixing tank (301). The stirring rod (303) is coaxial with the straight pipe section of the mixing tank (301). The connecting column (306) is fixedly connected to the side wall of the stirring rod (303). The rolling roller (305) is fixedly connected to the end of the connecting column (306) away from the stirring rod (303). The rolling roller (305) is coaxial with the connecting column (306). The rolling roller (305) is located above the filter screen (304). There is a gap between the rolling roller (305) and the filter screen (304). The top wall of the straight pipe section of the mixing tank (301) is provided with a feed inlet (311).
2. The road marking device for building construction according to claim 1, characterized in that: The stirring rod (303) passes through the filter screen (304) at its lower part. The filter screen (304) has a hole for the stirring rod (303) to pass through. The lower end of the stirring rod (303) passing through the filter screen (304) is fixedly connected to a connecting rod (308). The connecting rod (308) is coaxial with the stirring rod (303). The connecting rod (308) is located below the filter screen (304). The lower end of the connecting rod (308) is fixedly connected to a conveying shaft (309). The conveying shaft (309) is coaxial with the connecting rod (308). The outer wall of the conveying shaft (309) is provided with conveying blades (310). The conveying blades (310) are spirally arranged along the axial direction of the conveying shaft (309). The feeding mechanism (4) includes a feeding pipe (401). The feeding pipe (401) is fixedly connected to the feeding hole at the bottom of the funnel section. The conveying blades (310) are rotatably connected to the feeding pipe (401).
3. A road marking device for construction engineering according to claim 2, characterized in that: The lime mixing mechanism (3) includes a scraper plate (307). One end of the scraper plate (307) is fixedly connected to the outer wall of the mixing rod (303). The scraper plate (307) is located above the filter screen (304). The scraper plate (307) rotates with the mixing rod (303) and is connected to the top surface of the filter screen (304).
4. A road marking device for building construction according to claim 3, characterized in that: The cross-sectional shape of the scraper plate (307) is a right triangle, and the hypotenuse of the right triangle of the scraper plate (307) faces the direction of rotation.
5. A road marking device for construction engineering according to any one of claims 2-4, characterized in that: The feeding mechanism (4) includes a marking tube (405), a mounting frame (406), and a rotating ball (407). The upper end of the marking tube (405) is inserted into the feeding tube (401), and the lower end of the marking tube (405) extends out of the lower end of the feeding tube (401). The mounting frame (406) is provided with a marking hole. The lower end of the marking tube (405) extending out of the feeding tube (401) is fixedly connected to the upper part of the marking hole of the mounting frame (406). The lower part of the marking hole of the mounting frame (406) is inclined towards the ground. The rotating ball (407) is rotatably connected to the bottom surface of the mounting frame (406). The bottom surface of the mounting frame (406) is provided with a groove for the rotatable connection of the rotating ball (407). The rotating ball (407) is rotatably connected to the ground.
6. A road marking device for construction engineering according to claim 5, characterized in that: The feeding mechanism (4) includes a guide platform (402), a limiting ring (403) and a spring (404). The guide platform (402) is fixedly connected to the outer wall of the upper end of the marking tube (405). The limiting ring (403) is fixedly connected to the inner wall of the lower end of the feeding tube (401). The marking tube (405) is slidably connected inside the limiting ring (403). The guide platform (402) is slidably connected inside the feeding tube (401). The spring (404) is sleeved on the outer side of the marking tube (405). The upper end of the spring (404) is fixedly connected to the bottom surface of the guide platform (402), and the lower end of the spring (404) is fixedly connected to the top surface of the limiting ring (403).
7. A road marking device for construction engineering according to any one of claims 1, 2, 3, 4 or 6, characterized in that: The frame (1) is fixedly connected to a lime container on the rear side, and the handle (2) is tilted above the lime container.