An adjustable road marking device
By introducing an adjusting block and a baffle plate into the road marking equipment, combined with air pressure regulation, the problem of unstable glass bead flow rate and spreading effect was solved, and precise adjustment of the glass bead spreading amount and width was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI SHUANGXIANG GEOTECHNICAL ENG CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-26
AI Technical Summary
When the air pressure of existing road marking equipment is reduced, the flow rate and spreading effect of the glass beads are affected, making it difficult to achieve precise adjustment.
An adjustable road marking device was designed. By setting an adjusting block and a baffle on the discharge pipe of the storage tank, combined with air pressure adjustment and material hole size adjustment, the amount of glass beads spread can be flexibly controlled.
This improves the flexibility and range of adjustment for glass bead spreading, ensuring the stability and accuracy of spreading effects under different air pressure conditions.
Smart Images

Figure CN224280992U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spraying equipment technology, and in particular to an adjustable road marking device. Background Technology
[0002] Road marking equipment is primarily used to mark various road markings in areas such as roads, parking lots, squares, and running tracks. Spray-type road marking machines include a paint spraying mechanism and a pneumatic glass bead spreading mechanism. The paint spraying mechanism uses a pump such as a plunger pump to deliver paint from a tank to a paint spray gun, which then sprays the paint through the nozzle for marking. The pneumatic glass bead spreading mechanism uses an air compressor to pressurize a glass bead storage tank, thereby using air pressure to deliver the glass beads to the glass bead spray gun for spreading.
[0003] In actual use, the amount of glass beads spread per unit time is usually adjusted by the air pressure in the storage tank. When a smaller spreading area is required, the air pressure needs to be reduced. However, the reduction in air pressure will reduce the flow rate of the glass beads flowing out of the outlet of the glass bead storage tank. When the pressure is reduced to a certain extent, it will affect the flow of the glass beads in the pipeline, thereby reducing the spreading effect of the glass beads.
[0004] Therefore, an adjustable road marking device is proposed. Utility Model Content
[0005] The purpose of this invention is to provide an adjustable road marking device, which aims to solve or improve at least one of the above-mentioned technical problems.
[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides an adjustable road marking device, comprising:
[0007] Mobile cart;
[0008] The paint spraying mechanism includes a feeding assembly mounted on the mobile trolley, and the output end of the feeding assembly is connected to a paint spray gun.
[0009] The glass bead spreading mechanism includes a storage tank fixed to the mobile trolley, a pressurizing component connected to the storage tank, a first discharge pipe fixed to and connected to the bottom of the storage tank, a glass bead spray gun connected to the discharge end of the first discharge pipe, and the glass bead spray gun and the paint spray gun are arranged sequentially along the forward direction of the mobile trolley.
[0010] The spreading amount adjustment mechanism includes an adjustment block fixed to the first discharge pipe, a material hole on the adjustment block, the top and bottom of the material hole being connected to the first discharge pipe and the feed end of the glass bead spray gun, respectively, an adjustment groove on the adjustment block communicating with the side wall of the material hole, a baffle plate being slidably connected in the adjustment groove, and an adjustment component on the adjustment block, the adjustment component being connected to the baffle plate for adjusting the covering area of the baffle plate on the material hole.
[0011] Preferably, the adjusting component includes a slide bar fixed to the baffle plate, the slide bar being located at the end of the baffle plate away from the material hole, the slide bar passing through the side wall of the adjusting block and slidably connected to the adjusting block, and the adjusting block being provided with a positioning component detachably connected to the slide bar.
[0012] Preferably, the positioning component includes a first threaded rod, and the adjusting block has a first threaded groove communicating with the adjusting groove. The first threaded rod is threadedly connected to the first threaded groove. When the slide bar needs to be locked, the bottom of the first threaded rod presses against the top of the slide bar.
[0013] Preferably, a spray width adjustment mechanism is also provided, the spray width adjustment mechanism including a lifting component mounted on the mobile trolley, the lifting end of the lifting component being fixedly connected to a first bracket, the first bracket being fixedly connected to the glass bead spray gun and the paint spray gun, the glass bead spray gun being fixedly connected to and connected to the material orifice by a first telescopic hose, and the paint spray gun being connected to the material supply component by a second telescopic hose.
[0014] Preferably, the lifting assembly includes a second bracket fixed to the mobile trolley, a second screw rotatably connected to the second bracket, the second screw passing through the first bracket and threadedly connected to the first bracket, a limit block fixed to the first bracket, a limit groove formed on the second bracket, and the limit block slidingly connected to the limit groove.
[0015] Preferably, the pressurization assembly includes an air compressor fixedly connected to the mobile trolley, the air outlet of the air compressor is fixedly connected to and connected to the side wall of the storage tank via an air supply pipe, and a pressure gauge and a pressure regulating valve are fixedly connected to the air supply pipe.
[0016] Preferably, the feeding assembly includes a storage bin mounted on the mobile trolley, a material pump fixedly connected to the mobile trolley, a material pump having a feed pipe connected to its inlet end, the feed pipe extending into the storage bin, a second discharge pipe fixedly connected to and connected to the discharge end of the material pump, and a second telescopic hose having its two ends fixedly connected to and connected to the second discharge pipe and the inlet of the paint spray gun, respectively.
[0017] Preferably, a retaining ring is fixedly connected to the mobile trolley, and the storage bin is placed inside the retaining ring.
[0018] This utility model discloses the following technical effects: During the forward movement of the mobile trolley, the feeding component delivers the paint to the paint spray gun for spraying out the marking coating, and the pressurizing component pressurizes the storage tank to force the glass beads into the glass bead spray gun for spraying out, thereby achieving the spreading of glass beads; when it is necessary to adjust the spreading of glass beads, not only can the air pressure in the storage tank be adjusted, but also the size of the material hole can be adjusted by adjusting the area of the baffle plate on the material hole, thereby improving the degree of freedom and adjustment range of the glass bead spreading. Attached Figure Description
[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the spray width adjustment mechanism in this utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the adjusting block in this utility model;
[0023] Figure 4 This is a schematic diagram of the internal structure of the adjusting block in this utility model.
[0024] In the diagram: 1. Mobile trolley; 2. Paint spray gun; 3. Storage tank; 4. First discharge pipe; 5. Glass bead spray gun; 6. Adjusting block; 7. Material hole; 8. Adjusting groove; 9. Baffle plate; 10. Sliding strip; 11. First threaded rod; 12. First bracket; 13. First telescopic hose; 14. Second telescopic hose; 15. Second bracket; 16. Second screw; 17. Limiting block; 18. Limiting groove; 19. Air compressor; 20. Air supply pipe; 21. Storage tank; 22. Material pump; 23. Feed pipe; 24. Second discharge pipe; 25. Retaining ring; 26. Support rod. Detailed Implementation
[0025] 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.
[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0027] Reference Figures 1-4 This utility model provides an adjustable road marking device, including: a mobile trolley 1;
[0028] The paint spraying mechanism includes a feeding component mounted on a mobile trolley 1, and the output end of the feeding component is connected to a paint spray gun 2.
[0029] The glass bead spreading mechanism includes a storage tank 3 fixedly attached to a mobile trolley 1. A pressurizing component is connected to the storage tank 3. A first discharge pipe 4 is fixedly attached to and connected to the bottom of the storage tank 3. The discharge end of the first discharge pipe 4 is connected to a glass bead spray gun 5. The glass bead spray gun 5 and the paint spray gun 2 are arranged sequentially along the forward direction of the mobile trolley 1.
[0030] The spreading amount adjustment mechanism includes an adjustment block 6 fixed to the first discharge pipe 4. The adjustment block 6 has a material hole 7. The top and bottom of the material hole 7 are respectively connected to the feeding end of the first discharge pipe 4 and the glass bead spray gun 5. The adjustment block 6 has an adjustment groove 8 connected to the side wall of the material hole 7. A baffle plate 9 is slidably connected in the adjustment groove 8. An adjustment component is provided on the adjustment block 6. The adjustment component is connected to the baffle plate 9 to adjust the covering area of the baffle plate 9 on the material hole 7.
[0031] In this embodiment, a top cover is detachably connected to the top of the storage tank 3. The top cover is fastened to the inlet on the top of the storage tank 3 and connected to the storage tank 3 by bolts. An outlet is opened at the bottom of the storage tank 3. A first outlet pipe 4 is fixed to the outlet and a valve is fixed to the first outlet pipe 4. When in use, the top cover is opened, glass beads are poured into the storage tank 3, and then the cover is fastened to maintain a seal. Then, the storage tank 3 is pressurized by the pressurizing component, and the valve on the first outlet pipe 4 is opened to allow the glass beads to enter the first outlet pipe 4 from the outlet. Finally, the glass beads are sprayed out by the glass bead spray gun 5. When it is necessary to adjust the spreading amount, the size of the material hole 7 can be kept constant and the air pressure in the storage tank 3 can be adjusted alone, or the air pressure in the storage tank 3 can be kept constant and the size of the material hole 7 can be adjusted, or both can be adjusted at the same time, thereby improving the freedom and range of adjustment of the glass bead spreading amount. The main structures of the storage tank 3, glass bead spray gun 5, and paint spray gun 2 can refer to the corresponding structures in existing two-component marking machines, such as the two-component hydraulic marking machine with model number PT-600HS. The specifics are existing technologies and will not be elaborated here.
[0032] In some alternative embodiments, the adjusting component includes a slide bar 10 fixed to the baffle plate 9. The slide bar 10 is located at the end of the baffle plate 9 away from the material hole 7. The slide bar 10 passes through the side wall of the adjusting block 6 and is slidably connected to the adjusting block 6. The adjusting block 6 is provided with a positioning component that is detachably connected to the slide bar 10.
[0033] In some alternative embodiments, the positioning component includes a first threaded rod 11, and the adjusting block 6 has a first threaded groove communicating with the adjusting groove 8. The first threaded rod 11 is threadedly connected to the first threaded groove. When it is necessary to lock the slide bar 10, the first threaded rod 11 is tightened so that its bottom presses against the top of the slide bar 10.
[0034] When adjusting the size of the material hole 7, loosen the first threaded rod 11 so that it is away from the top of the slide bar 10. At this time, the slide bar 10 can be pushed inward or pulled outward to make the baffle plate 9 slide, changing the covering area of the baffle plate 9 on the material hole 7. After adjusting to the appropriate position, tighten the first threaded rod 11 to press it against the top of the slide bar 10 for locking. Specifically, the slide bar 10 is marked with a scale, which can be used to measure the adjustment amount.
[0035] In some optional embodiments, a spray width adjustment mechanism is also provided. The spray width adjustment mechanism includes a lifting component mounted on the mobile trolley 1. The lifting end of the lifting component is fixedly connected to a first bracket 12. The first bracket 12 is fixedly connected to the glass bead spray gun 5 and the paint spray gun 2. The glass bead spray gun 5 is fixedly connected to and connected to the material hole 7 by a first telescopic hose 13. The paint spray gun 2 is connected to the material supply component by a second telescopic hose 14.
[0036] In some alternative embodiments, the lifting assembly includes a second bracket 15 fixed to the mobile trolley 1, a second screw 16 rotatably connected to the second bracket 15, the second screw 16 passing through the first bracket 12 and threadedly connected to the first bracket 12, a limit block 17 fixed to the first bracket 12, and a limit groove 18 formed on the second bracket 15, with the limit block 17 and the limit groove 18 slidably connected.
[0037] Since the paint sprayed from the paint spray gun 2 is diffused, and the glass beads sprayed from the glass bead spray gun 5 are also diffused, the higher the paint spray gun 2 and the glass bead spray gun 5 are from the ground, the wider the spray pattern; the lower the height from the ground, the narrower the spray pattern. Therefore, by adjusting their height, the width of the scribing line and the spread width of the glass beads can be adjusted. During adjustment, by turning the second screw 16, the second screw 16 and the first bracket 12 rotate in a threaded manner. Under the limitation of the limiting block 17 and the limiting groove 18, the first bracket 12 is raised and lowered, thereby realizing the adjustment of the spray pattern.
[0038] In some alternative embodiments, the pressurization assembly includes an air compressor 19 fixedly attached to the mobile trolley 1. The air outlet of the air compressor 19 is fixedly connected to and communicates with the side wall of the storage tank 3 via an air supply pipe 20. A pressure gauge and a pressure regulating valve are fixedly attached to the air supply pipe 20.
[0039] Specifically, an air storage tank can be installed between the air compressor 19 and the storage tank 3. The compressed gas from the air compressor 19 is first sent into the air storage tank, and then transported to the storage tank 3 for pressurization. A pressure gauge is installed close to the storage tank 3 to monitor the delivery pressure. To improve the accuracy of monitoring, a pressure sensor can also be fixed on the storage tank 3 to monitor the pressure inside the storage tank 3 in real time.
[0040] In some optional embodiments, the feeding assembly includes a storage tank 21 mounted on a mobile trolley 1, a material pump 22 fixedly mounted on the mobile trolley 1, a material inlet end of the material pump 22 connected to a material inlet pipe 23 extending into the storage tank 21, a material outlet end of the material pump 22 fixedly connected to and connected to a second discharge pipe 24, and two ends of a second telescopic hose 14 fixedly connected to and connected to the second discharge pipe 24 and the inlet of the paint spray gun 2, respectively.
[0041] In some alternative embodiments, a retaining ring 25 is fixedly connected to the mobile trolley 1, and the storage bin 21 is placed inside the retaining ring 25.
[0042] Specifically, the feed pipe 23 is divided into three sections: a first rigid pipe section, a corrugated pipe section, and a second rigid pipe section. The second rigid pipe section has a bend. The first rigid pipe section is fixedly connected to the feed end of the feed pump 22. The second rigid pipe section extends into the storage tank 21. A support rod 26 is fixedly connected to the moving trolley 1. The support rod 26 has a groove. The bend of the second rigid pipe section is inserted into the groove. The support rod 26 supports the feed pipe 23. The corrugated pipe section facilitates the insertion and removal of the second rigid pipe section from the storage tank 21. The storage tank 21 is placed in the retaining ring 25 for easy replacement. A valve is fixedly connected to the second discharge pipe 24.
[0043] In use, the paint storage tank 21 is placed inside the retaining ring 25, the feed pipe 23 is placed inside the paint storage tank 21 and supported by the support rod 26, the glass beads are put into the storage tank 3, the air compressor 19 pressurizes the storage tank 3, the valves on the material pump 22, the second discharge pipe 24 and the first discharge pipe 4 are opened, the moving trolley moves forward, so that the paint is sprayed out through the paint spray gun 2 to achieve the marking, and the glass beads are sprayed out through the glass bead spray gun 5 to spread the glass beads on the marking coating. When it is necessary to adjust the spray width, the height of the paint spray gun 2 and the glass bead spray gun 5 can be adjusted synchronously by turning the second screw 16, thereby adjusting the spray width of the paint and the spread width of the glass beads. By changing the moving speed of the moving trolley 1, the spread amount of glass beads and the spray thickness of the paint can be adjusted synchronously. The spray thickness of the paint can be adjusted separately by changing the operating speed of the material pump 22. The spread amount of glass beads can be adjusted separately by changing the air pressure of the storage tank 3, or by changing the size of the material orifice 7, or by adjusting both simultaneously.
[0044] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0045] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. An adjustable road marking device, characterized in that, include: Mobile cart (1); The paint spraying mechanism includes a feeding assembly mounted on the mobile trolley (1), and the output end of the feeding assembly is connected to a paint spray gun (2); The glass bead spreading mechanism includes a storage tank (3) fixedly attached to the mobile trolley (1), a pressurizing component connected to the storage tank (3), a first discharge pipe (4) fixedly attached to and connected to the bottom of the storage tank (3), a glass bead spray gun (5) connected to the discharge end of the first discharge pipe (4), and the glass bead spray gun (5) and the paint spray gun (2) are arranged sequentially along the forward direction of the mobile trolley (1). The spreading amount adjustment mechanism includes an adjustment block (6) fixedly connected to the first discharge pipe (4). The adjustment block (6) has a material hole (7). The top and bottom of the material hole (7) are respectively connected to the first discharge pipe (4) and the feeding end of the glass bead spray gun (5). The adjustment block (6) has an adjustment groove (8) connected to the side wall of the material hole (7). A baffle plate (9) is slidably connected in the adjustment groove (8). An adjustment component is provided on the adjustment block (6). The adjustment component is connected to the baffle plate (9) for adjusting the covering area of the baffle plate (9) on the material hole (7).
2. The adjustable road marking device according to claim 1, characterized in that: The adjustment assembly includes a slide bar (10) fixed to the baffle plate (9). The slide bar (10) is located at the end of the baffle plate (9) away from the material hole (7). The slide bar (10) passes through the side wall of the adjustment block (6) and is slidably connected to the adjustment block (6). The adjustment block (6) is provided with a positioning assembly that is detachably connected to the slide bar (10).
3. The adjustable road marking device according to claim 2, characterized in that: The positioning component includes a first threaded rod (11), and the adjusting block (6) has a first threaded groove that communicates with the adjusting groove (8). The first threaded rod (11) is threadedly connected to the first threaded groove. When the slide bar (10) needs to be locked, the bottom of the first threaded rod (11) presses against the top of the slide bar (10).
4. The adjustable road marking device according to claim 1, characterized in that: A spray width adjustment mechanism is also provided. The spray width adjustment mechanism includes a lifting component mounted on the mobile trolley (1). The lifting end of the lifting component is fixedly connected to a first bracket (12). The first bracket (12) is fixedly connected to the glass bead spray gun (5) and the paint spray gun (2). The glass bead spray gun (5) is fixedly connected to and connected to the material hole (7) by a first telescopic hose (13). The paint spray gun (2) is connected to the material supply component by a second telescopic hose (14).
5. The adjustable road marking device according to claim 4, characterized in that: The lifting assembly includes a second bracket (15) fixed to the mobile trolley (1), a second screw (16) rotatably connected to the second bracket (15), the second screw (16) passing through the first bracket (12) and threadedly connected to the first bracket (12), a limit block (17) fixed to the first bracket (12), and a limit groove (18) formed on the second bracket (15), the limit block (17) and the limit groove (18) being slidably connected.
6. The adjustable road marking device according to claim 1, characterized in that: The pressurization assembly includes an air compressor (19) fixedly attached to the mobile trolley (1). The air outlet of the air compressor (19) is fixedly connected to and connected to the side wall of the storage tank (3) via an air supply pipe (20). A pressure gauge and a pressure regulating valve are fixedly attached to the air supply pipe (20).
7. The adjustable road marking device according to claim 1, characterized in that: The feeding assembly includes a storage tank (21) mounted on the mobile trolley (1), a material pump (22) fixedly mounted on the mobile trolley (1), a material inlet pipe (23) connected to the inlet end of the material pump (22), the material inlet pipe (23) extending into the storage tank (21), a second discharge pipe (24) fixedly mounted and connected to the outlet end of the material pump (22), and the two ends of the second telescopic hose (14) fixedly mounted and connected to the second discharge pipe (24) and the inlet of the paint spray gun (2), respectively.
8. The adjustable road marking device according to claim 7, characterized in that: A retaining ring (25) is fixedly connected to the mobile trolley (1), and the storage bucket (21) is placed inside the retaining ring (25).