Paying-off robot for marking construction

By integrating a multi-nozzle module with a bevel gear structure and pipe connector design, the problem of cumbersome nozzle replacement for road marking construction robots has been solved, enabling rapid nozzle switching and improved construction efficiency.

CN224133537UActive Publication Date: 2026-04-17XINGKE CONSTRUCTION CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINGKE CONSTRUCTION CO LTD
Filing Date
2025-04-08
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The replacement process for the nozzles of existing road marking construction robots is cumbersome, time-consuming, and prone to damage, affecting construction efficiency and safety.

Method used

It adopts a bevel gear disk structure with multiple nozzle modules integrated, combined with forward and reverse motor drive and ball limiter, to achieve rapid nozzle switching; the pipe connection seat design facilitates installation and disassembly, reducing operational complexity.

Benefits of technology

This achieves high efficiency, reliability, and safety in the nozzle replacement process, shortens replacement time, improves construction efficiency, and reduces the risk of component damage.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224133537U_ABST
    Figure CN224133537U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of marking construction paying-off, and discloses a marking construction paying-off robot, the upper end of a body is provided with a coating box and a pump body, the pump body is connected to the bottom of the coating box through a pipeline, a bevel gear disc integrated with a plurality of nozzles of different models and apertures is arranged, a driving gear is driven by a forward and reverse rotation motor, and the coating box is connected with the pump body through a pipeline. When the spray head needs to be replaced, a positive and negative rotation motor is started, a driving gear rotates to enable the bevel gear disc to rotate in a pay-off through hole, the spray head is rapidly switched to the needed spray head, meanwhile, in the rotating process of a connecting ring plate, balls at the two ends roll on the inner side of a limiting ring groove, and the effect of reducing friction is achieved; the bevel gear disc rotates more smoothly and stably, rotation blockage or damage caused by too large friction is avoided, the reliability of the nozzle switching process is guaranteed, meanwhile, the nozzle replacement time is greatly shortened under the cooperation of the pipeline connecting base, and the construction efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of road marking construction and setting out technology, and in particular to a road marking construction and setting out robot. Background Technology

[0002] In the field of road marking construction, road marking layout robots, relying on advanced automation technology, have successfully replaced traditional manual layout processes with their efficient and precise operation. Through preset programs and intelligent navigation systems, this equipment can quickly and accurately complete road marking layout work in complex construction environments, greatly improving construction efficiency, significantly reducing the previously heavy manual labor intensity, and effectively cutting labor costs. Different types of road markings, such as straight lines, dashed lines, arrows, and zebra crossings, have different requirements for the spray pattern and coverage of the paint; in addition, the characteristics of various paints, such as viscosity and drying speed, are not the same. To ensure the clarity and standardization of the markings and meet the needs of different construction scenarios, it is necessary to change to appropriate spray heads.

[0003] Most line-laying robot nozzles use a complex fixed connection method. When replacing the nozzle, the construction personnel need to use a variety of professional tools to remove the fixed parts, pipe connections and electrical lines around the nozzle in sequence. This is not only cumbersome but also time-consuming. If the construction personnel are not careful during the removal and installation process, the parts may be damaged, which will further prolong the replacement time. Utility Model Content

[0004] The present invention addresses the shortcomings of complex fixed connection methods, which require construction workers to use various professional tools to dismantle the fixed components, pipe connections, and electrical wiring around the nozzle when replacing it. This process is not only cumbersome but also time-consuming. Furthermore, the slightest carelessness during dismantling and installation can damage components, further prolonging the replacement time. This invention provides a road marking construction and layout robot that integrates multiple nozzle modules and allows for rapid replacement, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a line marking construction and layout robot, including a main body, a paint tank and a pump body installed at the upper end of the main body, the pump body being connected to the bottom of the paint tank via a pipe, an injection pipe installed at the output end of the pump body, a line marking through hole opened at the upper end of the main body, a bevel gear disk installed inside the line marking through hole, multiple fixing plates fixedly installed on the inner side of the bevel gear disk, pipe clamps fixedly installed on the inner side of the multiple fixing plates, a nozzle installed on the inner side of each pipe clamp, the upper end of the nozzle being connected to the bottom of the injection pipe, the multiple nozzles having different models and orifice diameters, a limiting ring groove opened in the inner wall of the line marking through hole, a connecting ring plate fixedly installed on the outer surface of the bevel gear disk, the connecting ring plate being located inside the limiting ring groove, a motor base installed on one side of the line marking through hole, a forward and reverse motor installed on the side of the motor base, the output end of the forward and reverse motor passing through the motor base and connected to a drive gear, the bottom of the drive gear meshing with the upper end of the bevel gear disk.

[0006] Preferably, multiple balls are installed at both the upper and lower ends of the connecting ring plate, and the surfaces of the balls are movably connected to the inner side of the limiting ring groove.

[0007] By using ball bearings, the frictional resistance between the connecting ring plate and the limiting ring groove is reduced, making the bevel gear disk rotate more flexibly and smoothly, thereby ensuring a stable and efficient nozzle switching process.

[0008] Preferably, a pipe connector is provided at the connection between the injection pipe and the nozzle, and two grooves are provided inside the pipe connector, with the upper end of the nozzle and the side of the injection pipe away from the pump body both located in the grooves.

[0009] By using the pipe connector and its groove, a tight and secure connection between the injection pipe and the nozzle is achieved, effectively preventing paint leakage and ensuring the smooth progress of the layout work.

[0010] Preferably, the pipe connector is composed of two half-pipes, and the two half-pipes are hinged to each other on one side by a hinge, and a fastening screw is threadedly connected to the opening of the pipe connector.

[0011] The installation of the pipe connector facilitates the installation and removal of the nozzles, thereby improving the convenience of equipment maintenance.

[0012] Preferably, multiple drive wheels are installed on both sides of the main body, and tracks are installed on the surface of each drive wheel. A positioning frame is fixedly installed at the upper center of the main body.

[0013] Preferably, a sleeve is fixedly installed at the upper end of the positioning frame, and the side of the injection pipe near the nozzle is located inside the sleeve.

[0014] By setting the sleeve on the positioning frame, the injection tube can be accurately positioned and stably supported, ensuring the accuracy of the nozzle line laying.

[0015] This utility model has the following advantages:

[0016] 1. By integrating multiple bevel gears with different nozzle models and apertures, and using a reversible motor to drive the drive gear, the bevel gears rotate. When a nozzle needs to be changed, the reversible motor is started, and the drive gear rotates, causing the bevel gears to rotate within the through hole, quickly switching to the required nozzle. At the same time, during the rotation of the connecting ring plate, the balls at both ends roll inside the limiting ring groove, reducing friction and making the rotation of the bevel gears smoother and more stable. This avoids jamming or damage due to excessive friction, ensuring the reliability of the nozzle switching process. In addition, the use of the pipe connection seat greatly shortens the nozzle replacement time and improves construction efficiency.

[0017] 2. The injection pipe and the nozzle are connected by a connector. The connector has a groove inside, and the upper part of the nozzle and the connection point of the injection pipe are both located in the groove, making the connection between the injection pipe and the nozzle tighter and more stable, effectively preventing paint leakage. At the same time, the connector is made of two half-pipes hinged together, and the opening is connected by a fastening screw thread, which is convenient for installation and disassembly, and makes the operation more convenient when maintaining or replacing the nozzle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the front end of the main body of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the inner structure of the bevel gear disk of this utility model;

[0022] Figure 5 This is a schematic diagram showing the disassembled structure of the connection between the injection pipe and the nozzle of this utility model.

[0023] In the diagram: 1. Main body; 2. Drive wheel; 3. Track; 4. Paint tank; 5. Pump body; 6. Injection pipe; 7. Line discharge through hole; 8. Bevel gear disc; 9. Connecting ring plate; 10. Ball bearing; 11. Fixing plate; 12. Pipe clamp; 13. Nozzle; 14. Limiting ring groove; 15. Motor base; 16. Forward and reverse motor; 17. Drive gear; 18. Pipe connection seat; 19. Groove; 20. Fastening screw; 21. Positioning frame; 22. Sleeve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 A road marking construction and layout robot includes a main body 1. A paint tank 4 and a pump body 5 are installed on the upper end of the main body 1. The pump body 5 is connected to the bottom of the paint tank 4 through a pipe. An injection pipe 6 is installed at the output end of the pump body 5. The pump body 5 draws out the paint from the bottom of the paint tank 4 and delivers it through the injection pipe 6. A layout through hole 7 is opened at the upper end of the main body 1. A bevel gear disk 8 is installed inside the layout through hole 7. Multiple fixing plates 11 are fixedly installed on the inner side of the bevel gear disk 8. Pipe clamps 12 are fixedly installed on the inner side of the multiple fixing plates 11. The pipe clamps 12 can ensure that the nozzles 13 maintain a stable position and connection state under the vibration environment generated by high-pressure paint delivery and equipment operation, and prevent the nozzles 13 from loosening or shifting, so as to ensure that the paint can be sprayed accurately and stably from the nozzles 13. The nozzles 13 are installed on the inner side of the pipe clamps 12. By setting up a bevel gear disk 8 that integrates multiple nozzles 13 of different models and apertures, the switching of nozzles 13 is more convenient and faster.

[0026] The upper end of the nozzle 13 is connected to the bottom of the injection pipe 6. The nozzles 13 have different models and orifice diameters. A limiting ring groove 14 is opened on the inner wall of the line-laying through hole 7. A connecting ring plate 9 is fixedly installed on the outer surface of the bevel gear disk 8. The connecting ring plate 9 is located inside the limiting ring groove 14. A motor base 15 is installed on one side of the line-laying through hole 7. A forward and reverse motor 16 is installed on the side of the motor base 15. The output end of the forward and reverse motor 16 passes through the motor base 15 and is connected to a drive gear 17. The bottom of the drive gear 17 meshes with the upper end of the bevel gear disk 8. When the nozzle 13 needs to be replaced, the forward and reverse motor 16 is started, and the drive gear 17 rotates, causing the bevel gear disk 8 to rotate in the line-laying through hole 7, quickly switching to the required nozzle 13. This ensures the reliability of the nozzle 13 switching process. At the same time, with the use of the pipe connecting seat 18, the nozzle 13 replacement time is greatly shortened, and the construction efficiency is improved.

[0027] Please see Figures 2-5Multiple balls 10 are installed at both ends of the connecting ring plate 9. The surface of the balls 10 is movably connected to the inner side of the limiting ring groove 14. During the rotation of the connecting ring plate 9, the balls 10 at both ends roll inside the limiting ring groove 14. The balls 10 convert the sliding friction between the connecting ring plate 9 and the limiting ring groove 14 into rolling friction, which greatly reduces the friction force and makes the rotation of the bevel gear disk 8 smoother and more stable, avoiding rotation jamming or damage due to excessive friction. A pipe connection seat 18 is provided at the connection between the injection pipe 6 and the nozzle 13. Two grooves 19 are opened inside the pipe connection seat 18. The upper end of the nozzle 13 and the side of the injection pipe 6 away from the pump body 5 are both located in the grooves 19. The injection pipe 6 and the nozzle 13 are connected through the connection seat. The grooves 19 are opened inside the pipe connection seat 18. The upper end of the nozzle 13 and the connection between the injection pipe 6 and the nozzle 13 are both located in the grooves 19, making the connection between the injection pipe 6 and the nozzle 13 tighter and more stable, effectively preventing paint leakage.

[0028] The pipe connector 18 consists of two half-pipes, which are hinged together on one side. The opening of the pipe connector 18 is threaded with a fastening screw 20. During operation, the half-pipe can be opened by loosening the fastening screw 20, making it easy to put the injection pipe 6 and the nozzle 13 into the groove 19 for connection. After installation, the screw is tightened to fix it. This greatly simplifies the connection and disassembly process of the injection pipe 6 and the nozzle 13. When it is necessary to replace the nozzle 13 or to inspect and maintain the connection, no complicated operation or professional tools are required, which reduces the difficulty of construction personnel and facilitates installation and disassembly. The operation is more convenient when maintaining or replacing the nozzle 13.

[0029] Multiple drive wheels 2 are installed on both sides of the main body 1. Tracks 3 are installed on the surface of each drive wheel 2. The drive wheels 2 drive the tracks 3 to rotate, enabling the robot to travel stably on various complex terrains and move flexibly to the construction position. A positioning frame 21 is fixedly installed in the middle of the upper end of the main body 1. A sleeve 22 is fixedly installed at the upper end of the positioning frame 21. The side of the injection pipe 6 near the nozzle 13 is located in the sleeve 22. The positioning frame 21 and the sleeve 22 at its upper end provide precise positioning and stable support for the injection pipe 6 during operation.

[0030] Working principle: In actual use, first start the pump body 5, draw out the paint at the bottom of the paint tank 4 through the pipeline, pressurize and deliver it to the injection pipe 6 and spray it out from the nozzle 13. If the nozzle 13 currently in use is not the one required for construction, start the forward and reverse motor 16. The output end of the forward and reverse motor 16 drives the drive gear 17 to rotate. Since the drive gear 17 meshes with the upper end of the bevel gear disk 8, the rotation of the drive gear 17 will drive the bevel gear disk 8 to rotate in the line through hole 7.

[0031] During the rotation of the bevel gear disk 8, the connecting ring plate 9 rotates inside the limiting ring groove 14, and the balls 10 installed at the upper and lower ends of the connecting ring plate 9 roll inside the limiting ring groove 14. This not only reduces the friction when the bevel gear disk 8 rotates, but also ensures the stability and accuracy of its rotation. As the bevel gear disk 8 rotates, the different nozzles 13 installed on its inner fixing plate 11 also rotate. When the required nozzle 13 rotates to the corresponding connection position with the bottom of the injection pipe 6, the forward and reverse motor 16 stops working.

[0032] The nozzle 13 is connected to the injection pipe 6 through the pipe connector 18. The pipe connector 18 is composed of two half-pipes that are hinged together. The grooves 19 inside the pipe connector 18 respectively hold the upper end of the nozzle 13 and the side of the injection pipe 6 away from the pump body 5. After the nozzle 13 is connected, tighten the fastening screw 20 at the opening of the pipe connector 18 to make the pipe connector 18 firmly fix the nozzle 13 and the injection pipe 6, prevent paint leakage, and ensure that the paint can be smoothly delivered from the injection pipe 6 to the nozzle 13.

[0033] The positioning frame 21 and the sleeve 22 fixedly installed at the middle of the upper part of the main body 1 play a role in positioning and supporting the injection pipe 6, ensuring the stability of the injection pipe 6 during the robot's movement, thereby ensuring that the nozzle 13 can accurately carry out the line laying operation according to the preset path, and evenly spray the paint on the ground to complete the line laying work for the marking construction.

Claims

1. A road marking and layout robot, comprising a body (1), characterized in that: The upper end of the main body (1) is equipped with a paint tank (4) and a pump body (5). The pump body (5) is connected to the bottom of the paint tank (4) through a pipe. The output end of the pump body (5) is equipped with an injection pipe (6). The upper end of the main body (1) is provided with a wire feeding through hole (7). The inside of the wire feeding through hole (7) is provided with a bevel gear disk (8). Multiple fixing plates (11) are fixedly installed on the inner side of the bevel gear disk (8). Pipe clamps (12) are fixedly installed on the inner side of the multiple fixing plates (11). A nozzle (13) is installed on the inner side of each pipe clamp (12). The upper end of the nozzle (13) is connected to the bottom of the injection pipe (6). The multiple nozzles (13) are connected and have different models and apertures. The inner wall of the wire feeding through hole (7) is provided with a limiting ring groove (14). A connecting ring plate (9) is fixedly installed on the outer surface of the bevel gear disk (8). The connecting ring plate (9) is located inside the limiting ring groove (14). A motor base (15) is installed on one side of the wire feeding through hole (7). A forward and reverse motor (16) is installed on the side of the motor base (15). The output end of the forward and reverse motor (16) passes through the motor base (15) and is connected to a drive gear (17). The bottom of the drive gear (17) meshes with the upper end of the bevel gear disk (8).

2. The line construction wire-out machine robot according to claim 1, characterized in that: Multiple balls (10) are installed at both the upper and lower ends of the connecting ring plate (9), and the surface of the balls (10) is movably connected to the inner side of the limiting ring groove (14).

3. The line construction wire-out machine robot according to claim 1, wherein: The connection between the injection pipe (6) and the nozzle (13) is provided with a pipe connector (18). The pipe connector (18) has two grooves (19) inside. The upper end of the nozzle (13) and the side of the injection pipe (6) away from the pump body (5) are both located in the grooves (19).

4. The line construction wire-out machine robot according to claim 3, characterized in that: The pipe connector (18) consists of two half-pipes, and the two half-pipes are hinged to each other on one side by a hinge. The opening of the pipe connector (18) is threaded with a fastening screw (20).

5. The line construction wire-out machine robot according to claim 1, wherein: Multiple drive wheels (2) are installed on both sides of the main body (1), and tracks (3) are installed on the surface of each drive wheel (2). A positioning frame (21) is fixedly installed at the upper middle part of the main body (1).

6. The line construction wire-out machine robot according to claim 5, characterized in that: The upper end of the positioning frame (21) is fixedly installed with a sleeve (22), and the side of the injection pipe (6) near the nozzle (13) is located inside the sleeve (22).