Municipal road marking renovation coating spray gun
By introducing structures such as a bidirectional threaded rod and an L-shaped connecting plate into the paint spray gun, flexible adjustment and protection of the paint spray gun position are achieved, solving the problem that existing paint spray guns cannot adjust the marking spacing, thus improving flexibility and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-31
AI Technical Summary
Existing paint spray guns cannot adjust the spacing of the markings according to the actual marking requirements, resulting in poor flexibility.
The structure employs a bidirectional threaded rod, an L-shaped connecting plate, a movable plate, an adjusting block, and a clamp to achieve flexible adjustment of the paint spray gun position, while providing protection through a protective cover and an adjusting screw.
It improves the flexibility and safety of paint spray guns, enabling the spraying of markings at different intervals, avoiding tool collisions and scratches from debris, and ensuring the normal use of the spray head.
Smart Images

Figure CN224063250U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road traffic technology, specifically to a spray gun for renovating municipal road markings. Background Technology
[0002] Traffic markings are traffic safety facilities consisting of various lines, arrows, words, vertical markings, raised pavement markers, and delineators painted on the road surface. Their function is to regulate and guide traffic. my country is gradually improving its infrastructure construction, and traffic markings are an essential and important component of this. When renovating traffic markings, paint spray guns are also needed.
[0003] Literature review revealed that an existing patent (publication number: CN216809510U) discloses a municipal road traffic marking device, including a base plate and a paint bucket. A heating seat is fixedly connected to the top outer wall of the base plate, and the paint bucket is positioned above the heating seat. A suction pump is fixedly connected to the top outer wall of the base plate, and a hose is fixedly connected to the output end of the suction pump. Sliding grooves are provided on both inner walls of the base plate, and sliders are slidably connected to the inner walls of the sliding grooves. A hydraulic cylinder is fixedly connected to the inner walls of the sliding grooves.
[0004] Although the aforementioned existing technology eliminates the need to reverse the device and re-paint the lines with the spray gun, reducing the workload of operators, in actual use, the paint spray gun in this technology can only mark lines at fixed intervals and cannot adjust the distance between two markings according to actual marking needs. This results in certain limitations and poor flexibility in the actual marking process. In view of this, we propose a municipal road marking renovation paint spray gun to solve the above problems. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a municipal road marking renovation paint spray gun, which solves the problem mentioned in the background art that existing paint spray guns can only apply markings at fixed intervals and cannot adjust the distance between two markings according to actual marking needs, resulting in certain limitations in the actual marking process.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a municipal road marking renovation paint spray gun, comprising a base plate and a paint bucket disposed on the base plate. The base plate has a through groove extending to both sides. A movable plate is slidably connected inside the through groove. Guide grooves are formed on opposite sides of the two movable plates. Hydraulic cylinders are fixedly connected inside the two guide grooves. An adjusting block is fixedly connected to the telescopic end of each hydraulic cylinder. A clamp is provided on the surface of the adjusting block. A paint spray gun is disposed inside the clamp. Two sliding grooves are formed on the inner wall of the through groove. A bidirectional threaded rod is rotatably connected inside the rear sliding groove. L-shaped connecting plates are slidably connected inside both sliding grooves. The two rear L-shaped connecting plates are threaded onto two opposite threads of the bidirectional threaded rod. A drive assembly is disposed on the rear side of the base plate.
[0007] Preferably, the drive assembly includes a motor, the output shaft of which rotatably passes through the interior of the rear sliding groove, and bevel gears are fitted on the surfaces of the output shaft of the motor and the bidirectional threaded rod, with the two bevel gears meshing together.
[0008] Preferably, a guide rod is fixedly connected inside the sliding groove on the front side, and the two L-shaped connecting plates on the front side are slidably sleeved on the outside of the guide rod.
[0009] Preferably, the adjusting block has a cavity inside, a first fixing rod is rotatably connected inside the cavity, the clamp moves through the cavity, and the clamp has a telescopic groove inside, with the first fixing rod extending into the telescopic groove.
[0010] Preferably, a spring is fixedly connected between the end of the first fixing rod located inside the telescopic groove and the inner wall of the telescopic groove.
[0011] Preferably, four positioning rods are fixedly connected to the inner wall of the cavity, and four positioning grooves are opened on one side surface of the clamp located inside the cavity, the positioning grooves and positioning rods being adapted to each other.
[0012] Preferably, a protective cover is provided on both sides of the base plate, and two support plates are fixedly connected to both sides of the base plate. An adjusting screw is rotatably connected between the two support plates. The rear end of the adjusting screw rotatably passes through the support plate, and a fixing plate is threaded on the outer surface of the adjusting screw. The fixing plate and the protective cover are fixedly connected.
[0013] Preferably, a suction pump is fixedly connected to the upper surface of the base plate, and a hose is provided on the outside of the suction pump. The suction pump is connected to the paint spray gun and the paint bucket through the hose.
[0014] Compared with the prior art, this utility model provides a municipal road marking renovation paint spray gun, which has the following beneficial effects:
[0015] 1. This municipal road marking renovation paint spray gun, through the cooperation of a two-way threaded rod, an L-shaped connecting plate, a movable plate, an adjusting block, and a clamp, realizes the adjustment of the position of the paint spray gun in the marking device, thereby further improving the flexibility of the paint spray gun in actual use, making it easy to spray markings with different spacings. It is highly practical and easy to operate.
[0016] 2. This municipal road marking renovation paint spray gun, through the cooperation of a protective cover, adjusting screw and fixing plate and other structures, achieves protection for the paint spray gun in the marking device, thereby avoiding the scratching and deformation of the nozzle caused by the collision of tools and the falling of debris, ensuring the normal use of the paint nozzle and the spraying effect, and improving the safety of the paint spray gun. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a municipal road marking renovation paint spray gun according to the present invention;
[0018] Figure 2 This is a cross-sectional view of the through groove of this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the movable plate of this utility model;
[0020] Figure 4 This is a cross-sectional view of the adjusting block of this utility model;
[0021] Figure 5 for Figure 3 Enlarged view of point A in the middle.
[0022] In the diagram: 1. Base plate; 2. Paint bucket; 3. Through groove; 4. Moving plate; 5. Guide groove; 6. Hydraulic cylinder; 7. Adjusting block; 8. Clamp; 9. Paint spray gun; 10. Sliding groove; 11. Bidirectional threaded rod; 12. L-shaped connecting plate; 13. Motor; 14. Bevel gear; 15. Guide rod; 16. Cavity; 17. First fixed rod; 18. Telescopic groove; 19. Spring; 20. Positioning rod; 21. Positioning groove; 22. Protective cover; 23. Support plate; 24. Adjusting screw; 25. Fixed plate; 26. Hoses; 27. Suction pump. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1-5 This utility model provides a technical solution: a municipal road marking renovation paint spray gun, including a base plate 1 and a paint bucket 2 set on the base plate 1. The base plate 1 has a through groove 3 extending to both sides. A movable plate 4 is slidably connected inside the through groove 3. A guide groove 5 is set on the opposite side surface of the two movable plates 4. A hydraulic cylinder 6 is fixedly connected inside the two guide grooves 5. An adjusting block 7 is fixedly connected to the telescopic end of the hydraulic cylinder 6. A clamp 8 is set on the surface of the adjusting block 7. A paint spray gun 9 is set inside the clamp 8. Two sliding grooves 10 are opened on the inner wall of the through groove 3. A bidirectional threaded rod 11 is rotatably connected inside the rear sliding groove 10. An L-shaped connecting plate 12 is slidably connected inside the two sliding grooves 10. The two rear L-shaped connecting plates 12 are respectively threaded onto the two opposite threads of the bidirectional threaded rod 11. A drive assembly is set on the rear side of the base plate 1.
[0025] Among them, a heating base is also provided in conjunction with the paint bucket 2. At the same time, the hydraulic cylinder 6 is also existing technology, and for details, please refer to the existing technology with publication number CN216809510U.
[0026] The drive assembly includes a motor 13, the output shaft of which rotates through the interior of the rear sliding groove 10, and bevel gears 14 are fitted on the surface of both the output shaft of the motor 13 and the surface of the bidirectional threaded rod 11, with the two bevel gears 14 meshing together.
[0027] Among them, the motor 13 is also equipped with a power supply, wires, controller and microcomputer, etc. Since they are not the main structures, they will not be described further.
[0028] A guide rod 15 is fixedly connected inside the front sliding groove 10, and the two L-shaped connecting plates 12 on the front are slidably sleeved on the outside of the guide rod 15.
[0029] The adjusting block 7 has a cavity 16 inside, and a first fixing rod 17 is rotatably connected inside the cavity 16. The clamp 8 moves through the cavity 16. The clamp 8 has a telescopic groove 18 inside, and the first fixing rod 17 moves into the telescopic groove 18.
[0030] A spring 19 is fixedly connected between one end of the first fixing rod 17 located inside the telescopic groove 18 and the inner wall of the telescopic groove 18.
[0031] Four positioning rods 20 are fixedly connected to the inner wall of the cavity 16. The clamp 8 is located inside the cavity 16 and has four positioning grooves 21 on one side surface. The positioning grooves 21 are adapted to the positioning rods 20.
[0032] Both sides of the base plate 1 are provided with protective covers 22. Two support plates 23 are fixedly connected to both sides of the base plate 1. An adjusting screw 24 is rotatably connected between the two support plates 23. The rear end of the adjusting screw 24 rotatably passes through the support plate 23. A fixing plate 25 is threaded on the outer surface of the adjusting screw 24. The fixing plate 25 and the protective cover 22 are fixedly connected.
[0033] Both the protective cover 22 and the fixing plate 25 are attached to the side wall of the base plate 1.
[0034] A suction pump 27 is fixedly connected to the upper surface of the base plate 1. A hose 26 is provided on the outside of the suction pump 27. The suction pump 27 is connected to the paint spray gun 9 and the paint bucket 2 through the hose 26.
[0035] Working principle:
[0036] When using this municipal road marking renovation paint spray gun, first turn on the switch of motor 13. At this time, the rotation of the output shaft of motor 13 and the cooperation of two bevel gears 14 can realize the rotation of the bidirectional threaded rod 11. The rotation of the bidirectional threaded rod 11 can drive the two rear L-shaped connecting plates 12 to slide inside the rear sliding groove 10. The movement of the two rear L-shaped connecting plates 12 can drive the two moving plates 4 to slide inside the through groove 3. The movement of the moving plates 4 can drive the two front L-shaped connecting plates 12 to slide inside the front sliding groove 10. And the movement of the moving plates 4 can drive the movement of the adjusting block 7, ultimately realizing the adjustment of the position of the paint spray gun 9 in the marking device.
[0037] After the positions of the two paint spray guns 9 in the marking device are adjusted, the suction pump 27 is started, so that the paint inside the paint bucket 2 is sprayed out from the paint spray guns 9 through the hose 26. Then the hydraulic cylinder 6 is started to finally achieve the spraying of the marking.
[0038] After the spraying is completed, when the paint spray gun 9 of the marking device needs to be protected, the clamp 8 is pulled outward. At this time, the clamp 8 will slide outside the first fixed rod 17, and the positioning rod 20 will disengage from the positioning groove 21. Then, the clamp 8 is rotated 90 degrees to the rear. At this time, the positioning rod 20 will be aligned with the positioning groove 21 again. When the clamp 8 rotates, due to the restriction of the spring 19, the first fixed rod 17 will be rotated synchronously. The rotation of the clamp 8 can drive the rotation of the paint spray gun 9 in the marking device. Afterward, the clamp 8 is released, and the clamp 8 can be reset by the elastic force of the spring 19, so that the positioning rod 20 is locked into the interior of the positioning groove 21 again.
[0039] Subsequently, rotating the adjusting screw 24 will move the fixing plate 25, which in turn will move the protective cover 22, ultimately protecting the paint spray gun 9 in the marking device.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A municipal road marking repainting spray gun comprising a base plate (1) and a paint bucket (2) arranged on the base plate (1), characterized in that: The inside of the bottom plate (1) is provided with a through groove (3) extending out of the two side surfaces, the inside of the through groove (3) is slidably connected with a moving plate (4), the opposite side surface of the two moving plates (4) is provided with a guide groove (5), the inside of the two guide grooves (5) is fixedly connected with a hydraulic cylinder (6), the telescopic end of the hydraulic cylinder (6) is fixedly connected with an adjusting block (7), the surface of the adjusting block (7) is provided with a clamp (8), the inside of the clamp (8) is provided with a paint spray gun (9), the inner wall of the through groove (3) is provided with two sliding grooves (10), the inside of the rear sliding groove (10) is rotatably connected with a bidirectional threaded rod (11), the inside of the two sliding grooves (10) is slidably connected with an L-shaped connecting plate (12), the rear two L-shaped connecting plates (12) are respectively threadedly sleeved at the opposite threads of the bidirectional threaded rod (11), and the rear side of the bottom plate (1) is provided with a driving assembly.
2. A municipal road marking repainting spray gun according to claim 1, characterized in that: The driving assembly comprises a motor (13), the output shaft of the motor (13) is rotatably penetrated into the inside of the rear sliding groove (10), the surface of the output shaft of the motor (13) and the bidirectional threaded rod (11) is sleeved with a bevel gear (14), and the two bevel gears (14) are meshedly connected.
3. The municipal road marking repainting spray gun according to claim 1, characterized in that: The inside of the front sliding groove (10) is fixedly connected with a guide rod (15), and the front two L-shaped connecting plates (12) are slidably sleeved on the outside of the guide rod (15).
4. The municipal road marking repainting spray gun according to claim 1, characterized in that: The inside of the adjusting block (7) is provided with a cavity (16), the inside of the cavity (16) is rotatably connected with a first fixed rod (17), the clamp (8) is movably penetrated into the inside of the cavity (16), the inside of the clamp (8) is provided with an expansion slot (18), and the first fixed rod (17) is movably extended into the inside of the expansion slot (18).
5. A municipal road marking repainting spray gun according to claim 4, characterized in that: The end of the first fixed rod (17) located in the inside of the expansion slot (18) is fixedly connected with a spring (19) between the expansion slot (18) and the inner wall of the expansion slot (18).
6. A municipal road marking repainting spray gun according to claim 5, characterized in that: The inner wall of the cavity (16) is fixedly connected with four positioning rods (20), one side surface of the clamp (8) located in the inside of the cavity (16) is provided with four positioning grooves (21), and the positioning grooves (21) and the positioning rods (20) are matched.
7. A municipal road marking repainting spray gun according to claim 1, characterized in that: Both sides of the bottom plate (1) are provided with protective covers (22), both side surfaces of the bottom plate (1) are fixedly connected with two supporting plates (23), a regulating screw rod (24) is rotatably connected between the two supporting plates (23), the rear end of the regulating screw rod (24) is rotatably penetrated out of the supporting plate (23), a fixed plate (25) is threadedly sleeved on the outer surface of the regulating screw rod (24), and the fixed plate (25) is fixedly connected with the protective cover (22).
8. A municipal road marking repainting spray gun according to claim 7, characterized in that: The upper surface of the bottom plate (1) is fixedly connected with a suction pump (27), the outside of the suction pump (27) is provided with a hose (26), and the suction pump (27) is connected with the paint spray gun (9) and the paint bucket (2) through the hose (26).
Citation Information
Patent Citations
Municipal road traffic marking device
CN216809510U