Road marking device

By using detachable paint spraying components and push-button operating levers in the road marking device, the problem of poor construction flexibility caused by fixed nozzles is solved, achieving high efficiency and precision in road marking construction and adapting to the construction needs of complex road conditions.

CN224119417UActive Publication Date: 2026-04-14GUANGZHOU URBAN PLANNING & DESIGN SURVEY RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The fixed design of existing road marking device nozzles results in poor construction flexibility, making it difficult to accurately apply markings in complex road conditions. Furthermore, adjusting the device position is cumbersome, affecting construction efficiency and stability.

Method used

Design a detachable paint spraying assembly that allows for flexible adjustment of the assembly via a base plate and pulley structure. Combined with a push-button operating lever and an elastic reset component, it enables rapid switching and position adjustment of the spray nozzles.

Benefits of technology

It improves the flexibility and efficiency of road marking construction, simplifies the operation process, adapts to the needs of complex road construction, and ensures the accuracy and uniformity of road markings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of road engineering, and discloses a road marking device which comprises a base, a paint spraying assembly, pulleys and at least two base plates, and the pulleys are installed at the bottom of the base; the at least two substrates are mounted on the base; the paint spraying assembly is detachably mounted on one of the base plates, and the mounting position of the paint spraying assembly can be adjusted among the base plates; the paint spraying assembly comprises a mounting frame and an operation assembly, the mounting frame is used for mounting a paint spraying tank, the operation assembly comprises an operation rod, an operation handle, an elastic reset piece and a connecting part, the bottom end of the mounting frame is detachably connected with one base plate through a mounting position, and the operation rod is slidably connected to the mounting frame and can slide up and down along the mounting frame. The elastic reset piece is connected with the operating rod and the mounting frame, the operating handle is mounted at the top end of the operating rod, and the connecting part is mounted at the bottom end of the operating rod and used for being connected with a sprayer of a paint spraying tank. The flexibility and the cheapness of marking construction can be improved, and the construction efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of road engineering technology, and specifically to a road marking device. Background Technology

[0002] In road marking construction, the performance of the equipment directly affects the quality and efficiency of the work. Currently, many road marking devices have the nozzle fixed to one side of the device, a traditional design that frequently causes problems during actual operation.

[0003] The fixed nozzle positions severely restrict construction flexibility. In complex road conditions such as curves and intersections, construction workers cannot flexibly adjust the nozzles, making it difficult to accurately apply the markings. For example, on narrow curves, it's difficult to get the markings close to the inside of the curve, affecting both aesthetics and traffic guidance effectiveness. Furthermore, to meet the marking requirements of different road widths or locations, construction workers need to repeatedly adjust the overall position and angle of the device, a tedious process. Frequent adjustments can also affect the stability of the device, increasing the risk of malfunction and thus delaying the construction progress.

[0004] In summary, existing road marking devices with nozzles fixed to one side of the unit have significant shortcomings in terms of construction flexibility, efficiency, and ability to handle special scenarios. There is an urgent need for a new device design that allows for easy adjustment of nozzle positions to adapt to complex road marking construction needs. Utility Model Content

[0005] The purpose of this utility model is to provide a road marking device with a simple structure that allows for easy adjustment of the position of the spraying device, thereby improving construction flexibility and efficiency and better adapting to complex road marking construction needs.

[0006] To achieve the above objectives, this application provides a road marking device, comprising: a base, a paint spraying assembly, a pulley, and at least two base plates.

[0007] The pulley is mounted on the bottom of the base;

[0008] At least two substrates are mounted on the base, and the base has at least one substrate on its front end and at least one side on its sides, and the substrate has a mounting position.

[0009] The painting assembly is detachably mounted on one of the substrates, and the mounting position of the painting assembly can be adjusted between the substrates.

[0010] The painting assembly includes: a mounting frame and an operating component. The mounting frame is used to mount the paint can. The operating component includes an operating lever, an operating handle, a resilient reset component, and a connecting part. The bottom end of the mounting frame is detachably connected to one of the base plates via the mounting position. The operating lever is slidably connected to the mounting frame and can slide up and down along the mounting frame. The resilient reset component connects the operating lever and the mounting frame. The operating handle is mounted on the top end of the operating lever, and the connecting part is mounted on the bottom end of the operating lever and is used to connect to the nozzle of the paint can.

[0011] Specifically, by pressing the operating handle, the operating lever can overcome the elastic force of the elastic reset member and slide from the initial position to the open position, thereby driving the connecting part to move and causing the spray nozzle of the paint can to switch from the closed state to the open state.

[0012] As a preferred technical solution, the mounting bracket includes: a push rod, a mounting plate, and a paint can mounting part. The mounting plate is fixedly mounted on the bottom end of the push rod and is used to be detachably connected to one of the base plates through the mounting position. The paint can mounting part is located on the front side of the push rod and is fixedly connected to the push rod. The paint can mounting part is used to mount the paint can.

[0013] As a preferred technical solution, the paint can mounting part includes: a support, a fixing plate, and a fixing member. The support and the fixing plate are spaced apart on the front side of the push rod and are fixedly connected to the push rod respectively. The support has through holes on its upper and lower sides for the spray nozzle of the paint can to pass through and connect with the connecting part. The front end of the fixing plate has mounting holes on its upper and lower sides. The fixing member passes through the mounting holes and abuts against the top of the paint can. The fixing member is detachably connected to the fixing plate.

[0014] As a preferred technical solution, the paint can mounting part further includes a protective plate, which is fixedly connected to the support, and the front side of the protective plate is an arc surface adapted to the outer peripheral wall of the paint can.

[0015] As a preferred technical solution, the push rod is further provided with a sleeve block, and the operating rod is slidably inserted into the sleeve block.

[0016] As a preferred technical solution, the operating lever is located on the rear side of the push rod, and the bottom of the push rod is provided with a through-hole that extends through both its front and rear sides. The connecting part passes through the through-hole and is fixedly connected to the operating lever, and the connecting part can move up and down reciprocally within the through-hole.

[0017] As a preferred technical solution, the operating component further includes a positioning guide rod, one end of which is fixedly connected to the push rod, and the other end is inserted into the operating rod. The elastic reset member is sleeved on the outer periphery of the positioning guide rod, one end of which is fixedly connected to the push rod, and the other end of which is fixedly connected to the operating rod.

[0018] As a preferred technical solution, the operating component further includes a grip, which is fixedly disposed on the top of the push rod and located on the rear side of the push rod, with the push rod and the operating handle spaced apart.

[0019] As a preferred technical solution, the substrates disposed on both sides of the base are defined as the first substrate;

[0020] The base has a slot on its side, which extends in the left-right direction, and the top surface of the base has a through hole communicating with the slot.

[0021] The road marking device also includes an installation assembly, which includes a plug rod and a connector. One end of the plug rod is slidably inserted into the slot. The first base plate is fixedly connected to the other end of the plug rod and protrudes from the outer periphery of the base. The connector passes through the through hole and its bottom abuts against the top surface of the plug rod.

[0022] As a preferred technical solution, the road marking device further includes a guide pole, which is fixedly installed on the front side of the base.

[0023] The road marking device provided by the above technical solution has the following advantages compared with the prior art:

[0024] 1. By setting the painting components on the substrate at different positions, their positions can be flexibly adjusted, which is beneficial to improving construction efficiency and flexibility.

[0025] 2. The painting operation can be achieved by pressing, which is simple, quick and saves construction time. Attached Figure Description

[0026] The present application will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are intended only to conceptually represent the composition or structure of the described objects and may contain exaggerated representations, and the drawings are not necessarily drawn to scale.

[0027] Figure 1This is a schematic diagram of the road marking device of this utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the paint spraying assembly of this utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the paint spraying assembly of this utility model;

[0030] Figure 4 This is a schematic diagram of the structure at point A of this utility model;

[0031] Figure 5 This is a schematic diagram of the structure at point B of this utility model;

[0032] The components include: 1. Base; 11. Slot; 2. Spray painting assembly; 21. Mounting bracket; 211. Push rod; 2111. Sleeve block; 2112. Through-hole; 212. Mounting plate; 213. Spray paint can mounting part; 2131. Support; 2132. Fixing plate; 2133. Fixing component; 2134. Protective plate; 22. Operating assembly; 221. Operating lever; 222. Operating handle; 223. Elastic reset component; 224. Connecting part; 225. Positioning guide rod; 226. Grip rod; 3. Pulley; 4. Base plate; 41. First base plate; 5. Mounting assembly; 51. Insertion rod; 52. Connector; 6. Guide rod. Detailed Implementation

[0033] Preferred embodiments of this application will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary, and should not be construed as limiting the scope of protection of this application.

[0034] First, it should be noted that the directions such as top, bottom, upward, and downward mentioned in this article are defined relative to the directions in the various accompanying figures. They are relative concepts and therefore can change depending on their different positions and practical applications. Therefore, these or other directions should not be interpreted as restrictive terms.

[0035] It should be noted that the term "comprising" does not exclude other elements or steps, and "a" or "an" does not exclude the plural.

[0036] Furthermore, it should be noted that any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the accompanying drawings, can still be combined among these technical features (or their equivalents) to obtain other embodiments of this application not directly mentioned herein.

[0037] It should also be understood that while the terms "first," "second," etc., are used in this document to describe various types of information, this information should not be limited to these terms, which are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0038] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0039] Please see Figure 1 A road marking device provided in this application includes: a base 1, a paint spraying assembly 2, a pulley 3, and at least two base plates 4.

[0040] The pulley 3 is installed at the bottom of the base 1;

[0041] At least two substrates 4 are mounted on the base 1, and the base 1 has at least one of its front end and two sides respectively provided with the substrate 4, and the substrate 4 is provided with a mounting position.

[0042] The painting assembly 2 can be detachably installed on one of the substrates 4, and the installation position of the painting assembly 2 can be adjusted between each of the substrates 4;

[0043] The painting assembly 2 includes: a mounting frame 21 and an operating assembly 22. The mounting frame 21 is used to mount the paint can. The operating assembly 22 includes an operating lever 221, an operating handle 222, an elastic reset member 223, and a connecting part 224. The bottom end of the mounting frame 21 is detachably connected to one of the base plates 4 through the mounting position. The operating lever 221 is slidably connected to the mounting frame 21 and can slide up and down along the mounting frame 21. The elastic reset member 223 connects the operating lever 221 and the mounting frame 21. The operating handle 222 is mounted on the top end of the operating lever 221. The connecting part 224 is mounted on the bottom end of the operating lever 221 and is used to connect to the nozzle of the paint can.

[0044] Specifically, by pressing the operating handle 222, the operating lever 221 can overcome the elastic force of the elastic reset member 223 and slide the operating lever 221 from the initial position to the open position, thereby driving the connecting part 224 to move, so that the spray nozzle of the paint can is switched from the closed state to the open state.

[0045] In this embodiment, the nozzle of the paint can used in this device is a press-type nozzle. In actual use, the device must first be moved to the marking position. The operator selects a suitable base plate 4 according to the marking requirements and installs the mounting bracket 21 on the corresponding base plate 4. The paint can is then inverted onto the mounting bracket 21, connecting the nozzle of the paint can to the connecting part 224. During marking, the operator simply raises the operating handle 222 to compress the elastic reset member 223. The elastic reset member 223 simultaneously drives the operating lever 221, the connecting part 224, and the nozzle of the paint can to rise, causing a change in pressure within the paint tube, resulting in paint being sprayed from the nozzle. The operator then simply moves the device along the path for marking. After marking is complete, releasing the operating handle 222 resets the elastic reset member 223, simultaneously resetting the operating lever 221, the connecting part 224, and the nozzle of the paint can, causing the pressure within the paint tube to change and the paint to stop spraying. Using the road marking device of this application for road marking allows for flexible adjustment of the position of the spray painting component 2, and the spray painting operation is simple, greatly improving the flexibility and efficiency of road marking construction. In addition, the overall structure is streamlined, without complicated and redundant parts, and the layout of each component is compact and reasonable, resulting in a small device size that does not occupy too much road surface during marking.

[0046] It is worth noting that this application preferably uses a spring as the elastic reset element 223. Springs have a relatively simple structure, are generally made of metal, and possess high strength and stability. Under normal operating conditions, springs can withstand repeated deformation and reset without easily being damaged, resulting in a long service life. Furthermore, springs have relatively stable performance, are not easily affected by external environmental factors, and can work reliably in a wide range of working environments. Therefore, using a spring as the elastic reset element 223 can improve the reliability and stability of the entire operating assembly 22 and reduce the probability of failure.

[0047] Please see Figure 2-3 Specifically, the mounting frame 21 includes: a push rod 211, a mounting plate 212, and a paint can mounting part 213. The mounting plate 212 is fixedly mounted on the bottom end of the push rod 211 and is used to detachably connect to one of the base plates 4 via the mounting position. The paint can mounting part 213 is located on the front side of the push rod 211 and is fixedly connected to the push rod 211. The paint can mounting part 213 is used to install a paint can. On the one hand, by setting the push rod 211, the movement of the device is facilitated, and the direction of movement of the device can be adjusted, which is convenient and quick. On the other hand, the mounting plate 212 is connected to the base plate 4, which facilitates the overall mounting of the mounting frame 21 on the base plate 4 and is easy to disassemble. The paint can mounting part 213 is used to install a paint can, and the paint can can be disassembled and stored when the device is not in use, preventing the paint in the paint can from deteriorating or the spray head from failing over time.

[0048] In some embodiments, the paint can mounting part 213 includes: a support 2131, a fixing plate 2132, and a fixing member 2133. The support 2131 and the fixing plate 2132 are spaced apart on the front side of the push rod 211 and are fixedly connected to the push rod 211 respectively. The support 2131 has through holes extending through its upper and lower sides for the paint can nozzle to pass through and connect to the connecting part 224. The fixing plate 2132 has mounting holes extending through its upper and lower sides at its front end. The fixing member 2133 passes through the mounting holes and abuts against the top of the paint can. The fixing member 2133 is detachably connected to the fixing plate 2132. In use, the paint can is inverted on the support 2131 so that the nozzle faces downwards and passes through the through holes to connect to the mounting part. This application preferably uses bolts as fasteners 2133. The inner circumferential wall of the mounting hole is provided with internal threads that mate with the external threads on the bolt. The bolt passes through the mounting hole and abuts against the bottom surface of the paint can. The bolt is screwed to the fixing plate 2132, which makes it convenient to remove the paint can after the marking is completed.

[0049] In some embodiments, the paint can mounting portion 213 further includes a protective plate 2134, which is fixedly connected to the support 2131, and the front side of the protective plate 2134 is an arc surface adapted to the outer peripheral wall of the paint can. The protective plate 2134 can further support and fix the paint can, ensuring that the position of the paint can does not shift during the painting process, and avoiding affecting the quality of the markings due to changes in the position of the paint can.

[0050] In some embodiments, the push rod 211 is further provided with a sleeve 2111, and the operating rod 221 is slidably inserted into the sleeve 2111. The sleeve 2111 provides a stable support and guiding structure for the operating rod 221. When the operator manipulates the operating rod 221, the sleeve 2111 can constrain the movement trajectory of the operating rod 221, reducing its swaying and deviation in the horizontal or lateral directions. At the same time, the sleeve 2111, as an intermediate component between the operating rod 221 and the push rod 211, avoids direct contact and friction between the operating rod 221 and the push rod 211. During long-term use, this design can reduce the wear on the surfaces of the operating rod 221 and the push rod 211, extending their service life. In addition, when the operating rod 221 is subjected to external impact, the sleeve 2111 can play a certain buffering role, reducing the impact force on the operating rod 221 and the push rod 211.

[0051] Please see Figure 4In some embodiments, the operating lever 221 is located behind the push rod 211. The bottom of the push rod 211 has a through-hole 2112 extending through its front and rear sides. The connecting part 224 passes through the through-hole 2112 and is fixedly connected to the operating lever 221. The connecting part 224 can reciprocate up and down within the through-hole 2112. Positioning the operating lever 221 behind the push rod 211 and connecting it through the through-hole 2112 and the connecting part 224 makes the entire structure more compact. Compared to designs where the operating lever 221 and the push rod 211 are separately located, this method effectively reduces the space occupied by the device. Furthermore, this connection method between the connecting part 224 and the operating lever 221 and the push rod 211 facilitates the disassembly and assembly of various components during maintenance or repair.

[0052] Please see Figure 5 In some embodiments, the operating component 22 further includes a positioning guide rod 225. One end of the positioning guide rod 225 is fixedly connected to the push rod 211, and the other end is inserted into the operating rod 221. The elastic reset member 223 is sleeved on the outer periphery of the positioning guide rod 225. One end of the elastic reset member 223 is fixedly connected to the push rod 211, and the other end is fixedly connected to the operating rod 221. By setting the positioning guide rod 225, precise guidance can be provided for the elastic deformation of the elastic reset member 223, and the rigidity and stability of the entire structure can be enhanced. In addition, since the positioning guide rod 225 guides the movement of the elastic reset member 223, friction and collision with surrounding components are reduced, while avoiding damage to the elastic reset member 223 due to excessive deformation.

[0053] In some embodiments, the operating component 22 further includes a grip 226, which is fixedly disposed on the top of the push rod 211 and located on the rear side of the push rod 211. The push rod 211 and the operating handle 222 are spaced apart.

[0054] In this embodiment, when painting is required, the operator only needs to hold the operating handle 222 and the lever 226 with one hand. Raising the operating handle 222 towards the lever 226 causes the elastic reset member 223, the operating lever 221, the connecting part 224, and the nozzle to rise synchronously, creating a pressure difference within the paint can and spraying the paint out. After painting is complete, the operator releases the operating handle 222, and the elastic reset member 223 resets, causing the operating lever 221, the connecting part 224, and the nozzle to reset as well. The pressure difference within the paint can is no longer present, and the paint stops spraying. This design allows the operator to complete the painting operation with only one hand. During the process, the other hand can be used to assist with stabilization or perform other necessary operations, greatly improving operational convenience, especially suitable for long-term continuous work, reducing operator fatigue. Furthermore, raising the operating handle 222 towards the lever 226 instantly starts the painting process, demonstrating a highly responsive design. When painting road markings, if temporary adjustments to the spray position are needed or obstacles need to be avoided, construction workers can react quickly, starting or stopping painting promptly to ensure the continuity and accuracy of the markings and improve construction efficiency. On the other hand, the use of the elastic reset component 223 enables the device to automatically reset. When the operator releases the operating handle 222, the elastic reset component 223 can quickly and stably drive the operating lever 221, connecting part 224, and nozzle back to their original positions, eliminating the need for additional manual operation and simplifying the operation process. Simultaneously, the reset of the elastic reset component 223 ensures the consistency of the nozzle position after each operation, providing a stable starting state for the next painting operation and ensuring the stability of the painting quality. Furthermore, based on the design of spraying paint by generating a pressure difference within the paint can, the paint flow can be stably controlled. As long as the operating handle 222 remains in the raised position, the pressure difference within the paint can be maintained at a certain level, ensuring continuous and uniform paint spraying, resulting in road markings with uniform thickness and smooth lines.

[0055] In some embodiments, the substrate 4 disposed on both sides of the base 1 is defined as the first substrate 41; the base 1 has a slot 11 on its side, the slot 11 extends in the left-right direction, and the top surface of the base 1 has a through hole communicating with the slot 11. The road marking device also includes a mounting assembly 5, which includes a plug rod 51 and a connector 52. One end of the plug rod 51 is slidably inserted into the slot 11, and the first substrate 41 is fixedly connected to the other end of the plug rod 51 and protrudes from the outer periphery of the base 1. The connector 52 passes through the through hole and its bottom abuts against the top surface of the plug rod 51. By adjusting the position of the plug rod 51 in the slot 11 and using the connector 52 to fix the plug rod 51 in the slot 11, the position of the first substrate 41 can be flexibly adjusted, further improving the flexibility of the device and adapting to the marking construction needs of complex roads.

[0056] In some embodiments, the road marking device further includes a guide pole 6, which is fixedly mounted on the front side of the base 1. The guide pole 6 clearly indicates the direction and path of the device, helping users accurately select the marking path on the road and improving marking efficiency. Furthermore, through clear marking and guidance, users can understand the road's direction and changes in advance, allowing sufficient time to react and reducing issues such as non-standard markings caused by uneven roads or complex road conditions, thus ensuring marking quality.

[0057] In summary, the road marking device provided in this embodiment can flexibly adjust the installation position of the paint can to adjust the position of the nozzle, ensuring accurate marking. Moreover, the painting operation is performed by pressing, which is simple and efficient, greatly improving the flexibility and efficiency of road marking construction and adapting to the needs of road marking construction on complex roads.

[0058] This specification discloses the present application with reference to the accompanying drawings and also enables those skilled in the art to implement the application, including making and using any device or system, employing suitable materials, and using any combination of methods. The scope of this application is defined by the claimed technical solution and includes other instances that would occur to those skilled in the art. Such other instances shall be considered to fall within the scope of protection defined by the claimed technical solution, provided that they include structural elements that are not different from the literal language of the claimed technical solution, or contain equivalent structural elements that are not substantially different from the literal language of the claimed technical solution.

Claims

1. A road marking device, characterized by The utility model relates to a paint spraying device, including: Base, paint spraying assembly, pulley, at least two base plates, The pulley is installed on the bottom of the base; At least two base plates are installed on the base, and the front end and at least one side of the base are respectively provided with the base plate, and the base plate is provided with a mounting position; The paint spraying assembly is detachably installed on one of the base plates, and the mounting position of the paint spraying assembly can be adjusted between the base plates; The paint spraying assembly includes a mounting frame for mounting a paint spraying tank and an operating assembly including an operating rod, an operating handle, an elastic reset member and a connecting portion, the bottom end of the mounting frame is detachably connected with one of the base plates through the mounting position, the operating rod is slidingly connected to the mounting frame and can slide up and down along the mounting frame, the elastic reset member connects the operating rod and the mounting frame, the operating handle is installed at the top end of the operating rod, and the connecting portion is installed at the bottom end of the operating rod and used for connecting with the nozzle of the paint spraying tank; By pressing the operating handle, the operating rod can overcome the elastic force of the elastic reset member and slide from the initial position to the open position, thereby driving the connecting portion to move and switching the nozzle of the paint spraying tank from the closed state to the open state.

2. The pavement marking apparatus of claim 1, wherein, The mounting frame includes a push rod, a mounting plate fixedly installed at the bottom end of the push rod, and a paint spraying tank mounting portion provided at the front side of the push rod and fixedly connected with the push rod, and the mounting plate is used for detachable connection with one of the base plates through the mounting position, and the paint spraying tank mounting portion is used for mounting the paint spraying tank.

3. The pavement marking apparatus of claim 2, wherein, The paint spraying tank mounting portion includes a holder, a fixed plate and a fixing member, the holder and the fixed plate are spaced apart and fixedly connected with the push rod at the front side of the push rod, the holder is provided with a through hole penetrating through the upper and lower sides thereof, the through hole is used for the nozzle of the paint spraying tank to pass through and connect with the connecting portion, the front end of the fixed plate is provided with a mounting hole penetrating through the upper and lower sides thereof, the fixing member passes through the mounting hole and abuts against the top of the paint spraying tank, and the fixing member is detachably connected with the fixed plate.

4. The pavement marking apparatus of claim 3, wherein, The paint spraying tank mounting portion further includes a guard plate fixedly connected with the holder, and the front side of the guard plate is an arc surface matched with the outer peripheral wall of the paint spraying tank.

5. The pavement marking apparatus of claim 2, wherein, The push rod is further provided with a sleeve block, and the operating rod is slidingly inserted into the sleeve block.

6. The pavement marking apparatus of claim 5, wherein, The operating rod is arranged at the rear side of the push rod, the bottom of the push rod is provided with a through hole penetrating through the front and rear sides thereof, the connecting portion passes through the through hole and is fixedly connected with the operating rod, and the connecting portion can reciprocate up and down in the through hole.

7. The pavement marking apparatus of claim 6, wherein, The operating assembly further includes a positioning guide rod, one end of the positioning guide rod is fixedly connected with the push rod, the other end is inserted into the operating rod, the outer periphery of the positioning guide rod is sleeved with the elastic reset member, one end of the elastic reset member is fixedly connected with the push rod, and the other end is fixedly connected with the operating rod.

8. The pavement marking apparatus of claim 7, wherein, The operation assembly further comprises a handle fixedly arranged on the top of the push rod and arranged on the rear side of the push rod.

9. The pavement marking apparatus of any one of claims 1-8, wherein, The base plate arranged on the two sides of the base is defined as a first base plate; The side surface of the base is provided with a slot extending in the left-right direction, and the top surface of the base is provided with a through hole in communication with the slot, The road marking device further comprises a mounting assembly, which comprises a plug-in rod and a connecting piece. One end of the plug-in rod is slidably plugged into the slot. The first base plate is fixedly connected to the other end of the plug-in rod and protrudes outward from the periphery of the base. The connecting piece passes through the through hole and abuts against the top surface of the plug-in rod at the bottom.

10. The pavement marking apparatus of claim 9, wherein, The guiding marker is fixedly arranged on the front side of the base.