A pollution prevention device for road markings during construction

By using electric push rods, threaded rods, and bidirectional screws for automatic adjustment, combined with roller design, the problem of low efficiency in existing road marking protection devices during construction is solved, achieving efficient and uniform protection of road markings and ensuring the clarity and integrity of the markings.

CN224280971UActive Publication Date: 2026-05-26JIANGSU WUXI TRAFFIC FACILITIES

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU WUXI TRAFFIC FACILITIES
Filing Date
2025-04-10
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing road marking protection devices require manual adjustment during construction, which is inefficient and difficult to adapt to road markings of different thicknesses and locations, resulting in poor protection.

Method used

The system employs an electric push rod, a threaded rod, and a bidirectional screw in conjunction with a self-locking motor to achieve automatic adjustment of the protective plate, adapting to road markings of different thicknesses and positions. Rollers reduce friction and improve movement efficiency.

Benefits of technology

It achieves comprehensive and uniform protection of road markings, improves construction efficiency, reduces potential damage to road markings, and ensures the clarity and integrity of road markings.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a road marking pollution prevention device during construction, relating to the technical field of road construction equipment. It includes a fixed plate, with several electric push rods evenly arranged on the left outer wall of the fixed plate. A mounting shell is provided at the end of the telescopic arm of each electric push rod. A slider is slidably mounted inside the mounting shell, and a threaded rod is rotatably mounted inside the mounting shell, passing through and threadedly connected to the slider. A mounting frame is provided on the side wall of the slider, and a fixed shell is located at the bottom left side of the mounting frame. A groove is provided on the upper inner wall of the fixed shell, and two sliding plates are slidably mounted on the fixed shell. A protective plate is provided at the bottom of the sliding plates. This utility model uses the electric push rods and threaded rods to adjust the position of the mounting shell and protective plate, while simultaneously adjusting the spacing of the protective plates with a bidirectional screw. This allows the device to adapt to road markings of different thicknesses and positions, ensuring that the markings receive comprehensive and uniform protection during construction.
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Description

Technical Field

[0001] This utility model relates to the field of road construction equipment technology, specifically a pollution prevention device for road markings during construction. Background Technology

[0002] Traffic markings are signs on the road surface that use lines, arrows, words, vertical markings, raised pavement markers, and delineators to convey traffic information such as guidance, restrictions, and warnings to road users. Their function is to regulate and guide traffic. Especially in the construction of chip seal or asphalt spreading, the protection of road markings is an important task. If the road markings are not properly protected, they will be contaminated during the construction process, which will directly affect the construction quality.

[0003] A utility model patent with authorization announcement number CN218373219U discloses a road marking pollution prevention device during construction. Installed at the rear of an engineering vehicle, it includes a cover plate, a support frame, and a sliding frame. The cover plate is a semi-circular tube with its opening facing the ground. One end of the cover plate is hinged to a swing arm, and the other end of the swing arm is hinged to the lower end of the support frame. The upper end of the support frame is fixed to one end of the sliding frame, and the other end of the sliding frame is slidably mounted on the engineering vehicle. This utility model is integrated into the engineering vehicle and moves with it. During sealing or asphalt spraying operations, the cover plate covers the road markings, ensuring that the road markings are not contaminated during construction. This improves construction efficiency, shortens the work cycle, reduces the input of manpower and material resources, saves costs, and ensures high safety in use.

[0004] In actual use, the above-mentioned devices require manual adjustment of the position and height of the protective plate, which is not only inefficient but also makes it difficult to ensure that the road markings are fully and evenly protected. Although some other devices adopt mechanized design, they often cannot adapt to road markings of different thicknesses and positions due to the lack of precise adjustment mechanisms, resulting in a significant reduction in the protection effect. Therefore, we propose a road marking pollution prevention device during construction. Utility Model Content

[0005] The purpose of this utility model is to provide a road marking pollution prevention device during construction, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A road marking pollution prevention device during construction includes a fixing plate. Several electric push rods are evenly arranged on the left outer wall of the fixing plate. The telescopic arm of each electric push rod is provided with a mounting shell. A slider is slidably arranged inside the mounting shell. A threaded rod is also rotatably arranged inside the mounting shell. The threaded rod passes through the slider and is threadedly connected to the slider. A mounting frame is provided on the side wall of the slider. A fixing shell is provided at the bottom left side of the mounting frame. A groove is provided on the upper inner wall of the fixing shell. Two sliding plates are also slidably arranged on the fixing shell. A protective plate is provided at the bottom of the sliding plates.

[0008] As a further embodiment of this utility model: a bidirectional screw is rotatably provided inside the fixed shell, the bidirectional screw passing through the left and right sliding plates and threadedly connected to the left and right sliding plates.

[0009] As a further improvement of this utility model, a fixing frame is also provided at the bottom of the protective plate, and rollers are provided on the fixing frame via an installation shaft.

[0010] As a further improvement of this utility model: a first motor is provided on the top of the mounting shell, and the power output shaft of the first motor is connected to a threaded rod through a coupling. The first motor is a self-locking motor.

[0011] As a further improvement of this utility model: a second motor is provided on the outer wall of the fixed shell, and the power output shaft of the second motor is connected to a bidirectional screw through a coupling. The second motor is a self-locking motor.

[0012] As a further improvement of this utility model, a support rod is also provided on the mounting bracket.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The position of the mounting shell and protective plate is adjusted by the electric push rod and threaded rod, and the spacing of the protective plate is adjusted by the bidirectional screw, so that the device can adapt to road markings of different thicknesses and positions, ensuring that the markings are fully and evenly protected during construction.

[0015] 2. The device also improves the moving efficiency and protective effect of the protective plate by setting rollers, which can reduce the friction between the protective plate and the road surface, allowing the protective plate to move more smoothly along the markings. This not only improves construction efficiency but also reduces potential damage to the markings, ensuring the clarity and integrity of the markings. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the mounting bracket in an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the fixed shell in an embodiment of this utility model.

[0019] Figure reference numerals: 1. Fixed plate; 2. Electric push rod; 3. Mounting housing; 4. Slider; 5. Threaded rod; 6. First motor; 7. Mounting bracket; 701. Support rod; 8. Fixed housing; 9. Slide plate; 10. Bidirectional screw; 11. Second motor; 12. Protective plate; 13. Fixed bracket; 14. Roller. Detailed Implementation

[0020] The following embodiments will be described in detail with reference to the accompanying drawings. In the drawings and description, similar or identical parts are referred to by the same reference numerals. Furthermore, in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are merely illustrative and not intended to limit the scope of the utility model. Any obvious modifications or alterations made to this utility model do not depart from its spirit and scope.

[0021] Example

[0022] Please see Figures 1-3 In this embodiment of the utility model, a road marking pollution prevention device during construction includes a fixing plate 1. Several electric push rods 2 are evenly arranged on the outer left side of the fixing plate 1. The telescopic arm of the electric push rod 2 is provided with a mounting shell 3. A slider 4 is slidably arranged inside the mounting shell 3. A threaded rod 5 is also rotatably arranged inside the mounting shell 3. The threaded rod 5 passes through the slider 4 and is threadedly connected to the slider 4. At this time, rotating the threaded rod 5 can drive the slider 4 to move up and down.

[0023] A mounting bracket 7 is provided on the side wall of the slider 4. A fixed shell 8 is provided on the bottom left side of the mounting bracket 7. A sliding groove is provided on the inner wall of the upper part of the fixed shell 8. Two sliding plates 9 are also slidably mounted on the fixed shell 8. A protective plate 12 is provided at the bottom of the sliding plate 9. With the adjustable spacing of the sliding plates 9, the spacing between the two protective plates 12 can be adjusted, so that the protective plates 12 can meet the protection of road markings of different thicknesses, thereby improving the applicability of the device to a certain extent. At the same time, with the action of the fixed plate 1, the device can be installed on a moving work vehicle, thereby protecting the road markings during construction and reducing the occurrence of pollution to the road markings. A bidirectional screw 10 is also rotatably mounted inside the fixed shell 8. The bidirectional screw 10 passes through the two sliding plates 9 and is threadedly connected to the two sliding plates 9. Rotating the bidirectional screw 10 can move the two sliding plates 9 closer or further away, so that the protective plate 12 can better protect the road markings.

[0024] The top of the mounting housing 3 is equipped with a first motor 6. The power output shaft of the first motor 6 is connected to the threaded rod 5 through a coupling. The first motor 6 is a self-locking motor. Under the action of the self-locking function of the first motor 6, the height of the mounting bracket 7 can be fixed after adjustment, so that the protection plate 12 can better protect the marking line.

[0025] A second motor 11 is provided on the outer wall of the fixed shell 8. The power output shaft of the second motor 11 is connected to the bidirectional screw 10 through a coupling. The second motor 11 is a self-locking motor. Under the action of the second motor 11, the adjusted position of the protection plate 12 can be fixed, so that the protection device can better protect the marking.

[0026] The bottom of the protective plate 12 is also provided with a fixing frame 13, and a roller 14 is provided on the fixing frame 13 via a mounting shaft. Under the action of the roller 14, the protective plate 12 can move better, thereby ensuring the efficiency of the use of the protective plate 12.

[0027] The mounting frame 7 is also provided with a support rod 701. Under the action of the support rod 701, the efficiency of the use of the mounting frame 7 is guaranteed, the occurrence of damage to the mounting frame 7 is reduced, and thus the quality of use of the mounting frame 7 is guaranteed.

[0028] In actual use, the device is first securely mounted on a moving work vehicle via the fixing plate 1. When the vehicle reaches the construction area requiring road marking protection, the device begins to operate. The electric push rod 2 is activated according to a preset or operating command, and its telescopic arm pushes the mounting housing 3 and its internal components to the appropriate position to accommodate different road markings. At this time, the first motor 6 inside the mounting housing 3 starts as the power source, and its power output shaft drives the threaded rod 5 to rotate via a coupling. Since the threaded rod 5 is threadedly connected to the slider 4, the rotation of the threaded rod 5 is converted into the up and down movement of the slider 4, thereby adjusting the height of the mounting frame 7 and the protective components it carries. The self-locking function of the first motor 6 ensures that the slider 4 and the mounting frame 7 remain fixed after being adjusted to the required height and will not change position due to vehicle vibration or other factors. The second motor 11 on the fixed housing 8 starts, and its power output shaft also drives the bidirectional screw 10 to rotate through the coupling. The bidirectional screw 10 is threadedly connected to the left and right sliding plates 9. Therefore, its rotation will drive the sliding plates 9 to move left and right in the sliding groove of the fixed housing 8, thereby adjusting the distance between the two protective plates 12. This adjustment process allows the protective plates 12 to adapt to road markings of different thicknesses, improving the applicability of the device. Similarly, the self-locking function of the second motor 11 ensures the stability of the sliding plates 9 and the protective plates 12 after they are adjusted to the appropriate position. After the protective plates 12 move above the road markings, the rollers 14 at the bottom of them begin to contact and roll along the markings. The design of the rollers 14 reduces the friction between the protective plates 12 and the road surface, allowing the protective plates 12 to move more smoothly and efficiently, while reducing potential damage to the markings.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A construction pavement marking pollution prevention device comprising a fixed plate (1), characterized in that, Several electric push rods (2) are evenly arranged on the outer left side of the fixed plate (1). The telescopic arm of the electric push rod (2) is provided with a mounting shell (3). A slider (4) is slidably arranged inside the mounting shell (3). A threaded rod (5) is also rotatably arranged inside the mounting shell (3). The threaded rod (5) passes through the slider (4) and is threadedly connected to the slider (4). A mounting frame (7) is provided on the side wall of the slider (4). A fixed shell (8) is provided at the bottom left side of the mounting frame (7). A sliding groove is provided on the inner wall above the fixed shell (8). Two sliding plates (9) are also slidably arranged on the fixed shell (8). A protective plate (12) is provided at the bottom of the sliding plate (9).

2. The construction pavement marking pollution prevention device according to claim 1, wherein, The fixed shell (8) is also rotatably provided with a bidirectional screw (10), which passes through the left and right sliding plates (9) and is threadedly connected to the left and right sliding plates (9).

3. The anti-pollution device for road markings during construction according to claim 1, characterized in that, The bottom of the protective plate (12) is also provided with a fixing frame (13), and a roller (14) is provided on the fixing frame (13) via a mounting shaft.

4. The anti-pollution device for road markings during construction according to claim 1, characterized in that, The top of the mounting housing (3) is provided with a first motor (6), and the power output shaft of the first motor (6) is connected to the threaded rod (5) through a coupling. The first motor (6) is a self-locking motor.

5. The anti-pollution device for road markings during construction according to claim 1, characterized in that, The second motor (11) is provided on the outer wall of the fixed shell (8). The power output shaft of the second motor (11) is connected to the bidirectional screw (10) through a coupling. The second motor (11) is a self-locking motor.

6. The anti-pollution device for road markings during construction according to claim 1, characterized in that, The mounting bracket (7) is also provided with a support rod (701).