Line marking vehicle based on extended nozzle

Abstract

This utility model relates to the field of automatic line marking technology, specifically a line marking vehicle based on an extended nozzle. It includes a trolley body, a connecting bracket, an extension bracket, a support wheel assembly, a movable connecting rod, and an extended nozzle. The trolley body is equipped with a feeding module for feeding the extended nozzle. The connecting bracket is located on one side of the trolley body. One side of the extension bracket is connected to the connecting bracket, and the other side is used to connect to the support wheel assembly. The extension bracket has an adjusting and fixing part, and the movable connecting rod is movably mounted on the adjusting and fixing part. The adjusting and fixing part is adjusted and fixed according to the required length of the movable connecting rod. The extended nozzle is mounted on the movable connecting rod. This utility model achieves functional extension without increasing the system's complexity, is easy to maintain, and helps reduce manufacturing and subsequent maintenance costs. It improves the intelligence level and adaptability of the line marking vehicle, and has a positive promoting effect on improving the quality and efficiency of road construction.

Description

Technical Field

[0001] This utility model relates to the field of automatic line drawing technology, and in particular to a line drawing vehicle based on an extended nozzle. Background Technology

[0002] In the current field of road marking construction, automated road marking vehicles are widely used due to their high efficiency and uniform line quality. These devices typically rely on GPS or other satellite navigation systems for positioning and navigation to achieve precise trajectory control. However, in actual operation, especially in urban tree-lined roads, tunnel entrances and exits, under overpasses, or densely built-up areas, satellite signals are easily blocked or subject to multipath effects, leading to signal attenuation or even loss. Once the positioning signal becomes unstable, the road marking vehicle's control system cannot accurately track the predetermined path, easily causing problems such as interrupted marking, trajectory drift, line distortion, or repeated application, seriously affecting the construction quality and aesthetics.

[0003] To address the need for marking in signal blind spots, traditional methods often rely on manual repainting or simple handheld devices. This is not only inefficient and increases labor costs, but also makes it difficult to ensure a smooth transition and consistent specifications between old and new markings. Some improved equipment attempts to expand the working range by adding mechanical extension arms, but these generally suffer from drawbacks such as bulky structures, inconvenient adjustments, and poor cantilever stability. Excessive extension can easily cause vehicle vibration or overturning, and most extension mechanisms lack quick and reliable locking and fine-tuning functions, making them difficult to adapt to complex and changing on-site conditions. In addition, independent feeding of the extension nozzles often becomes a technical challenge, as external piping can easily lead to problems such as tangling, leakage, or uneven feeding.

[0004] Therefore, there is an urgent need in this field for a line marking vehicle structure that can effectively expand the line marking range while maintaining high stability and ease of operation, so as to achieve continuous, accurate and automated construction in environments with poor signal. Utility Model Content

[0005] To address the aforementioned issues, this invention extends functionality without increasing system complexity, simplifies maintenance, and helps reduce manufacturing and maintenance costs. It is a line marking vehicle based on an extended nozzle, which enhances the intelligence and adaptability of the marking vehicle, and positively contributes to improving the quality and efficiency of road construction.

[0006] The technical solution adopted by this utility model is: a line marking vehicle based on an extended nozzle, including a trolley body, a connecting bracket, an extension bracket, a support wheel assembly, a movable connecting rod, and an extended nozzle. The trolley body is provided with a feeding module, which is used to feed material to the extended nozzle. The connecting bracket is located on one side of the trolley body. One side of the extension bracket is connected to the connecting bracket, and the other side is used to connect to the support wheel assembly. The extension bracket is provided with an adjustment and fixing part. The movable connecting rod is movably mounted on the adjustment and fixing part. The adjustment and fixing part is adjusted and fixed according to the required length of the movable connecting rod. The extended nozzle is mounted on the movable connecting rod.

[0007] A further improvement to the above solution is that the vehicle body includes a frame, a set of wheels, a control module, and a signal receiving module. The set of wheels is mounted on the frame, the control module is mounted on one side of the frame, and the signal receiving module is mounted on the upper side of the frame.

[0008] A further improvement to the above solution is that lateral supports are provided on both sides of the frame, and the lateral supports are located on the upper side of the running wheel assembly.

[0009] A further improvement to the above solution is that a side nozzle is provided on the side support, and the side nozzle is provided with a first nozzle support connected to the side support.

[0010] A further improvement to the above solution is that a bottom nozzle module is provided on the lower side of the vehicle frame. The bottom nozzle module includes a sliding adjustment seat and multiple sliding nozzles, with the multiple sliding nozzles disposed on the sliding adjustment seat.

[0011] A further improvement to the above solution is that the connecting bracket is provided with a first connecting member, the extension bracket is provided with a second connecting member, and the first connecting member and the second connecting member are connected to each other by a pin; multiple first connecting members and multiple second connecting members are provided.

[0012] A further improvement to the above solution is that the extension bracket is formed by connecting multiple square tubes together, and a connecting plate is provided between two adjacent square tubes for fixed connection.

[0013] A further improvement to the above solution is that the support wheel assembly includes a support connecting frame and a travel wheel. The support connecting frame is provided with a connecting sleeve and a buffer connecting seat. The connecting sleeve is located outside the adjusting and fixing part, and the buffer connecting seat is used to connect the connecting sleeve and the travel wheel.

[0014] A further improvement to the above solution is that the adjusting and fixing part includes an adjusting movable groove and a fixing hole. The adjusting movable groove is disposed on the extension bracket, the fixing hole is disposed on the extension bracket and communicates with the adjusting movable groove, the movable connecting rod is disposed in the adjusting movable groove, and the fixing hole is used to install a fixing element to fix the movable connecting rod in the adjusting movable groove.

[0015] A further improvement to the above solution is that the extended nozzle includes an extended connecting frame and a nozzle element, the extended connecting frame is mounted on a movable connecting rod, and the nozzle element is mounted at the bottom of the extended connecting frame.

[0016] The beneficial effects of this utility model are: Compared to existing line marking vehicles, this utility model is used for road construction line marking. The extended nozzle structure allows for a longer marking position, specifically preventing signal loss in shady areas. Through a telescopic extension mechanism consisting of a connecting bracket, an extension bracket, and a movable linkage, the extended nozzle can flexibly extend into areas where GPS signals are easily obstructed, such as under trees and overpasses, for independent line marking. This solves problems such as line marking interruptions, position drift, or line distortion caused by signal loss or attenuation, ensuring the continuity and accuracy of the marking trajectory. It is particularly suitable for construction scenarios with complex signal environments, such as urban tree-lined roads and tunnel entrances. The support wheel assembly, located at the end of the extension bracket, forms a stable multi-point support with the vehicle body, effectively avoiding the risk of overall swaying or tipping due to excessive nozzle extension, ensuring a smooth marking process. The adjustable fixing part allows for quick adjustment and locking of the extended length of the movable linkage according to actual needs, simplifying operation and flexibly adapting to different construction distance requirements, improving the equipment's versatility and operational efficiency. This invention ensures continuous paint delivery by extending the nozzle and directly feeding the paint from the feeding module on the trolley itself, avoiding the cumbersome and unreliable factors associated with external feeding. While extending functionality, this invention does not excessively increase system complexity, is easy to maintain, and helps reduce manufacturing and maintenance costs. It enhances the intelligence level and adaptability of the line marking vehicle, positively contributing to improved road construction quality and efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the line marking vehicle based on the extended nozzle of this utility model; Figure 2 for Figure 1 A three-dimensional schematic diagram of the nozzle of a line-drawing vehicle based on an extended nozzle. Figure 3 for Figure 1 A three-dimensional schematic diagram of the small car nozzle of the line drawing vehicle based on the extended nozzle from another perspective; Figure 4 for Figure 1 A three-dimensional schematic diagram of the line-marking vehicle structure based on the extended nozzle.

[0018] Explanation of reference numerals in the attached drawings: 1. Carriage body; 11. Frame; 111. Side support; 112. Side nozzle; 12. Traveling wheel assembly; 13. Control module; 14. Signal receiving module; 15. Bottom nozzle module; 15. Sliding adjustment seat; 151. Sliding nozzle; 152. Connecting bracket; 2. First connecting piece; 21. Extension bracket; 3. Adjustment fixing part; 31. Adjustment movable groove; 311. Fixing hole; 312. Second connecting piece; 32. Connecting plate; 33. Supporting wheel assembly; 4. Support connecting frame; 41. Connecting sleeve; 411. Buffer connecting seat; 412. Traveling wheel; 42. Movable connecting rod; 5. Extension nozzle; 6. Extension connecting frame; 61. Nozzle element; 62. Feeding module; 7. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0020] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-4As shown, in one embodiment of this utility model, a line marking vehicle based on an extended nozzle is disclosed, including a trolley body 1, a connecting bracket 2, an extension bracket 3, a support wheel assembly 4, a movable connecting rod 5, and an extended nozzle 6. The trolley body 1 is equipped with a feeding module 7 for feeding the extended nozzle 6. The connecting bracket 2 is located on one side of the trolley body 1. One side of the extension bracket 3 is connected to the connecting bracket 2, and the other side is used to connect to the support wheel assembly 4. The extension bracket 3 is equipped with an adjustment and fixing part 31, and the movable connecting rod 5 is movably mounted on the adjustment and fixing part 31. The adjustment and fixing part 31 is adjusted and fixed according to the required length of the movable connecting rod 5. The extended nozzle 6 is mounted on the movable connecting rod 5. This embodiment is used for road construction line marking. The structure of the extended nozzle 6 can extend the line marking position, specifically preventing signal loss in shady areas. By setting up a telescopic extension mechanism consisting of a connecting bracket 2, an extension bracket 3, and a movable connecting rod 5, the extended nozzle 6 can flexibly extend into areas where GPS signals are easily obstructed, such as under trees or overpasses, for independent line drawing. This solves problems such as line drawing interruption, position drift, or line distortion caused by signal loss or attenuation, ensuring the continuity and accuracy of the line drawing trajectory. It is particularly suitable for construction scenarios with complex signal environments, such as urban tree-lined roads and tunnel entrances. The support wheel group 4 is set at the end of the extension bracket 3, forming a stable multi-point support together with the trolley body 1, effectively avoiding the risk of overall shaking or overturning caused by excessive nozzle extension, and ensuring the smoothness of the line drawing process. The adjustment and fixing part 31 allows for quick adjustment and locking of the extension length of the movable connecting rod 5 according to actual needs. The operation is simple and can flexibly cope with different construction distance requirements, improving the versatility and work efficiency of the equipment. In this embodiment, the extended nozzle 6 is directly supplied with material by the feeding module 7 on the trolley body 1, ensuring the continuity of paint delivery and avoiding the cumbersome and unreliable factors brought about by external material supply. This embodiment extends functionality without excessively increasing system complexity, facilitating maintenance and helping to reduce manufacturing and subsequent maintenance costs. It enhances the intelligence level and adaptability of the lane marking vehicle, positively contributing to improved road construction quality and efficiency.

[0022] The vehicle body 1 includes a frame 11, a set of running wheels 12, a control module 13, and a signal receiving module 14. The running wheels 12 are mounted on the frame 11, the control module 13 is located on one side of the frame 11, and the signal receiving module 14 is located on the upper side of the frame 11. In this embodiment, the frame 11 serves as the core load-bearing structure, integrating the running wheels 12, the control module 13, and the upper extension mechanism into one unit, ensuring the structural rigidity of the line-marking vehicle during travel and line-marking. The control module 13 is positioned nearby, shortening the distance to the controlled object, resulting in faster response and more precise command execution, thus ensuring that the line-marking vehicle maintains a stable trajectory even when performing lateral line-marking with the extension mechanism. Placing the signal receiving module 14 on the upper side of the frame 11 minimizes the obstruction of satellite signals by the vehicle body and the extension support, providing the system with continuous, stable, and high-precision positioning data. This design complements the nozzles that can extend into signal blind spots: when the signal is good, the vehicle travels along a predetermined path to draw lines; when it needs to enter areas with weak signals such as shady areas, the stable base signal provides a reliable reference for the control module 13 to calculate the relative position of the extended nozzles 6, ensuring smooth connection and positional accuracy between the extended line segment and the main line segment.

[0023] Lateral supports 111 are provided on both sides of the frame 11, and the lateral supports 111 are located on the upper side of the driving wheel set 12. Side nozzles 112 are provided on the lateral supports 111, and the side nozzles 112 are connected to the lateral supports 111 by a first nozzle bracket. In this embodiment, the addition of lateral supports 111 and side nozzles 112 brings significant benefits in terms of multi-functionality and efficiency. Specifically, this design enables the line-marking vehicle to perform multi-task parallel operations. While the vehicle uses the extended nozzles 6 to mark lines at a distance (such as under the shade of trees), the side nozzles 112 on both sides can simultaneously draw road edge lines, auxiliary lines, or different colored markings. This greatly expands the functionality of a single device, integrating complex line-marking tasks that originally required multiple passes into a single operation, effectively avoiding repeated positioning, significantly improving construction efficiency, and reducing operating time and labor costs. The side bracket 111, positioned above the travel wheel assembly 12, ensures that the side nozzles 112 have a suitable working height while avoiding interference with the drive mechanism, resulting in a compact and reasonable structure. The first nozzle bracket provides flexible installation and angle adjustment functions, ensuring the accuracy and quality of the side markings.

[0024] A bottom nozzle module 15 is provided on the lower side of the frame 11. The bottom nozzle module 15 includes a sliding adjustment seat 151 and multiple sliding nozzles 152, which are mounted on the sliding adjustment seat 151. In this embodiment, by adding the bottom nozzle module 15, the functional versatility and operational flexibility of the line marking vehicle are greatly enhanced, achieving significant beneficial effects. Specifically, the sliding adjustment seat 151 allows for flexible adjustment of the lateral position of the multiple sliding nozzles 152. This design enables a single line marking vehicle to quickly adapt to road marking construction with different width requirements. For example, by adjusting the nozzle spacing, double lines, triple lines, or even wider single solid or dashed lines can be painted in one go without changing equipment or making complex mechanical modifications, achieving "one machine for multiple uses." This not only significantly improves construction efficiency and reduces equipment investment and time costs associated with changing procedures, but also ensures the equidistant and standardized parallel line marking through precise spacing control, thereby improving the quality of line marking.

[0025] The connecting bracket 2 is provided with a first connecting member 21, and the extension bracket 3 is provided with a second connecting member 32. The first connecting member 21 and the second connecting member 32 are connected to each other by a pin; there are multiple first connecting members 21 and multiple second connecting members 32. In this embodiment, by adopting a modular connection structure composed of multiple first connecting members 21, second connecting members 32 and pins, the extension nozzle 6 system is provided with excellent adjustability and structural stability. Specifically, the multiple connection points realize multi-level length adjustment function. Users can select different connecting members to pair and pin to fix according to the actual working distance requirements, thereby flexibly changing the extension length of the extension bracket 3, so that the line marking vehicle can accurately adapt to various working scenarios such as short-distance supplementation and long-distance crossing. At the same time, multiple connecting members share the force, forming a distributed load support, effectively avoiding stress concentration and structural shaking problems that may occur with single-point connection, greatly enhancing the rigidity and stability of the extension mechanism during operation, and ensuring the line marking accuracy of the nozzle end.

[0026] The extension bracket 3 is formed by connecting multiple square tubes, with a connecting plate 33 fixing adjacent square tubes together. In this embodiment, the use of a multi-segment square tube and connecting plate 33 structure brings significant modularity, lightweighting, and high strength to the extension nozzle 6 system. Specifically, designing the extension bracket 3 as a multi-segment greatly improves the convenience of product transportation and storage. It can be disassembled when not in use, effectively reducing space occupation. During use, it is assembled on-site using the connecting plate 33, making the operation simple and quick. The square tubes themselves have excellent bending and torsional resistance, while the connecting plate 33 provides a strong rigid connection, together ensuring that even in a long-span extension state, the entire bracket can maintain extremely high structural stability and shape retention, effectively suppressing vibration and deformation during operation, thereby ensuring the straightness accuracy and consistency of the end nozzle line drawing.

[0027] The support wheel assembly 4 includes a support connecting frame 41 and a traveling wheel 42. The support connecting frame 41 is provided with a connecting sleeve 411 and a buffer connecting seat 412. The connecting sleeve 411 is located outside the adjusting and fixing part 31, and the buffer connecting seat 412 is used to connect the connecting sleeve 411 and the traveling wheel 42. In this embodiment, through the synergistic effect of components such as the connecting sleeve 411 and the buffer connecting seat 412, the line marking vehicle with the extended nozzle 6 is provided with crucial operational stability and ground adaptability. Specifically, the cooperation between the connecting sleeve 411 and the adjusting and fixing part 31 enables flexible and reliable adjustment and locking of the height position of the support wheel assembly 4, allowing it to accurately match the support requirements of the bracket under different extension lengths and effectively prevent the "nodding" phenomenon caused by excessive cantilever length. More importantly, the setting of the buffer connecting seat 412 introduces a valuable elastic buffer function. When the line marking vehicle travels on slightly undulating or uneven road surfaces, the buffer connecting seat 412 can effectively absorb and dissipate the impact and vibration from the ground, forming a "vibration isolation" system.

[0028] The adjusting and fixing part 31 includes an adjusting movable groove 311 and a fixing hole 312. The adjusting movable groove 311 is disposed on the extension bracket 3, and the fixing hole 312 is disposed on the extension bracket 3 and communicates with the adjusting movable groove 311. The movable connecting rod 5 is disposed in the adjusting movable groove 311, and the fixing hole 312 is used to install a fixing element to fix the movable connecting rod 5 in the adjusting movable groove 311. In this embodiment, through the ingenious cooperation between the adjusting movable groove 311 and the fixing hole 312, the core stepless adjustment and precise locking function of the line drawing vehicle for the extended nozzle 6 is provided. This design realizes the continuous positional adjustability of the support wheel set 4 relative to the extension bracket 3. The user can flexibly and smoothly move the position of the movable connecting rod 5 in the adjusting movable groove 311 according to the specific length and counterweight of the extension bracket in actual operation, thereby finding the optimal support balance point. Once the position is determined, a firm mechanical lock can be achieved by the fixing element, effectively preventing accidental displacement or slippage during travel or operation. This stepless adjustment method is more precise and flexible than the traditional multi-stage orifice adjustment. It can more accurately compensate for torque changes caused by changes in extension length, greatly enhance the stability of the vehicle under different working modes, ensure the height stability of the nozzle at the end of the extension bracket, and ultimately guarantee the accuracy and consistency of the line drawing operation.

[0029] The extended nozzle 6 includes an extension connecting frame 61 and a nozzle element 62. The extension connecting frame 61 is mounted on the movable connecting rod 5, and the nozzle element 62 is located at the bottom of the extension connecting frame 61. In this embodiment, by independently mounting the nozzle element 62 at the end of the movable connecting rod 5 via the extension connecting frame 61, the crucial nozzle position stability and operational flexibility in line marking operations are achieved. Specifically, this separate design ensures that the working height and angle of the nozzle element 62 are no longer directly affected by vehicle body bumps or slight deformation of the support, but rather form a relatively independent and stable suspension system through the movable connecting rod 5 and the extension connecting frame 61. This not only effectively isolates the main vibrations from the vehicle body and road surface, ensuring a constant distance between the nozzle and the road surface, but also directly guarantees the uniformity of the line width and paint flow, significantly improving the line marking quality. Simultaneously, this modular connection method makes the installation, debugging, replacement, and maintenance of the nozzle element 62 extremely convenient. Users can quickly replace the corresponding nozzle element 62 according to different line drawing requirements (such as different line widths and different paint types) without modifying the main structure, which greatly enhances the versatility and work efficiency of the equipment.

[0030] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A line marking vehicle based on an extended nozzle, characterized in that: The device includes a trolley body, a connecting bracket, an extension bracket, a support wheel assembly, a movable connecting rod, and an extension nozzle. The trolley body is equipped with a feeding module for feeding the extension nozzle. The connecting bracket is located on one side of the trolley body. One side of the extension bracket is connected to the connecting bracket, and the other side is used to connect to the support wheel assembly. The extension bracket is equipped with an adjustment and fixing part. The movable connecting rod is movably mounted on the adjustment and fixing part. The adjustment and fixing part is adjusted and fixed according to the required length of the movable connecting rod. The extension nozzle is mounted on the movable connecting rod.

2. The line marking vehicle based on an extended nozzle according to claim 1, characterized in that: The vehicle body includes a frame, a set of wheels, a control module, and a signal receiving module. The set of wheels is mounted on the frame, the control module is mounted on one side of the frame, and the signal receiving module is mounted on the upper side of the frame.

3. The line marking vehicle based on the extended nozzle according to claim 2, characterized in that: The frame is provided with lateral supports on both sides, and the lateral supports are located on the upper side of the running wheelset.

4. The line marking vehicle based on an extended nozzle according to claim 3, characterized in that: The lateral support is provided with a side nozzle, and the side nozzle is provided with a first nozzle bracket connected to the lateral support.

5. The line marking vehicle based on the extended nozzle according to claim 2, characterized in that: A bottom nozzle module is provided on the lower side of the vehicle frame. The bottom nozzle module includes a sliding adjustment seat and multiple sliding nozzles, which are mounted on the sliding adjustment seat.

6. The line marking vehicle based on the extended nozzle according to claim 1, characterized in that: The connecting bracket is provided with a first connector, and the extension bracket is provided with a second connector. The first connector and the second connector are connected to each other by a pin. There are multiple first connectors and multiple second connectors.

7. The line marking vehicle based on an extended nozzle according to claim 1, characterized in that: The extension bracket is formed by connecting multiple square tubes together, and a connecting plate is provided between two adjacent square tubes for fixed connection.

8. The line marking vehicle based on an extended nozzle according to claim 1, characterized in that: The support wheel assembly includes a support connecting frame and a running wheel. The support connecting frame is provided with a connecting sleeve and a buffer connecting seat. The connecting sleeve is located outside the adjusting and fixing part, and the buffer connecting seat is used to connect the connecting sleeve and the running wheel.

9. The line marking vehicle based on an extended nozzle according to claim 1, characterized in that: The adjusting and fixing part includes an adjusting movable groove and a fixing hole. The adjusting movable groove is disposed on the extension bracket, and the fixing hole is disposed on the extension bracket and communicates with the adjusting movable groove. The movable connecting rod is disposed in the adjusting movable groove, and the fixing hole is used to install a fixing element to fix the movable connecting rod in the adjusting movable groove.

10. The line marking vehicle based on an extended nozzle according to claim 1, characterized in that: The extended nozzle includes an extended connecting frame and a nozzle element. The extended connecting frame is mounted on a movable connecting rod, and the nozzle element is mounted at the bottom of the extended connecting frame.

Images