Road crack repairing device
By designing a cylinder-driven lifting frame and a limiting sleeve structure, the screed can automatically fit and smooth the ground, solving the inconvenience of hand-held screed operation and improving the safety and efficiency of highway crack repair.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SECOND ENG BUREAU LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-01
AI Technical Summary
In the current process of repairing road cracks, the use of a trowel requires hand operation, which causes users to bend over for a long time, which is exhausting and poses a risk of the trowel breaking.
A highway crack repair device was designed. A cylinder-driven lifting frame lowers the slurry plate. Combined with a limiting sleeve and spring structure, the slurry plate is kept in contact with the ground, and a baffle prevents asphalt from entering the installation groove.
It reduces the need for users to bend over for extended periods while holding the squeegee, lowers the risk of squeegee breakage, and improves operational safety and efficiency.
Smart Images

Figure CN224186581U_ABST
Abstract
Description
A highway crack repair device Technical Field
[0001] This application relates to the field of highway crack repair, and in particular to a highway crack repair device. Background Technology
[0002] Highways are public roads where cars can travel and public transportation can proceed. Highways are mainly composed of a base course, a concrete layer, and an asphalt layer. Due to the effects of traffic loads and changes in ambient temperature, cracks will eventually form in the asphalt layer. The commonly used method for repairing cracks in asphalt pavements is to pour hot asphalt along the cracks to seal them and prevent moisture from entering the pavement. To ensure the aesthetics of the cracks after pouring, users will use a trowel to smooth the poured surface.
[0003] Currently, most highway crack repairs use asphalt pouring. After the asphalt is poured, users usually smooth the surface with a screed to ensure its aesthetics. However, this process is cumbersome, requiring users to bend over for extended periods. Therefore, a highway crack repair device is needed that can smooth the asphalt surface using a smoothing structure, avoiding the need for users to bend over for long periods and reducing their energy expenditure. Summary of the Invention
[0004] In order to solve the existing technical problems, this application provides a highway crack repair device.
[0005] This application provides a highway crack repair device, which adopts the following technical solution: A highway crack repair device includes a pouring vehicle body. A fixed frame is provided at the bottom of the pouring vehicle body. Limiting sleeves are fixedly connected to the front and back of the fixed frame. A lifting frame is provided at the bottom of the fixed frame. The top of the lifting frame passes through the limiting sleeve and is slidably connected to the limiting sleeve. A fixing block is fixedly connected to the bottom of the inner cavity of the lifting frame. Two symmetrical limiting grooves are opened at the bottom of the inner cavity of the lifting frame. A fixing plate is fixedly connected to the inner cavity of the fixed frame. A cylinder is fixedly connected to the top of the fixing plate by bolts. The output end of the cylinder passes through the fixing plate and is fixedly connected to the top of the fixing block. An installation frame is provided at the bottom of the lifting frame. An installation groove is opened at the bottom of the installation frame. A squeegee is slidably connected to the inner cavity of the installation groove. Two symmetrical limiting blocks are provided in the inner cavity of the lifting frame. The bottom of the limiting blocks passes through the limiting groove and is fixedly connected to the top of the installation frame. A bolt is provided through the right side of the installation frame. The bolt passes through the inner cavity of the installation groove and is threadedly connected to the squeegee.
[0006] By adopting the above technical solution, the cylinder is activated to drive the lifting frame to move. The limiting sleeve limits the lifting frame to move the mounting frame downward, which in turn moves the screed downward, so that the bottom of the screed is in contact with the ground. The pouring vehicle body is then activated, and the screed can be used to smooth the asphalt pouring surface. This avoids the need for the user to hold the screed and bend over for a long time, reducing the user's energy consumption.
[0007] Preferably, the top of the mounting frame is fixedly connected to four symmetrical sliding rods, the top of which extends through the inner cavity of the lifting frame and is slidably connected to the lifting frame.
[0008] Preferably, a spring is fitted onto the surface of the slide bar, with the top of the spring fixedly connected to the bottom of the lifting frame and the bottom of the spring fixedly connected to the mounting frame.
[0009] By adopting the above technical solution, and through the setting of the spring, when the trowel plate is in contact with the ground, the spring will be compressed by the mounting bracket and contract, which avoids the trowel plate from breaking due to excessive downward pressure, and improves the safety of the trowel plate in contact with the ground.
[0010] Preferably, baffles are fixedly connected to both sides of the squeegee, and the top of the baffles fits against the bottom of the mounting frame.
[0011] By adopting the above technical solution, the baffle will block the asphalt that accumulates during the asphalt pouring surface when the squeegee is squeegeed, thus preventing asphalt from entering the inner cavity of the installation groove and preventing asphalt from sticking at the connection between the squeegee and the installation groove.
[0012] Preferably, the limiting sleeve is a square sleeve, the lifting frame is U-shaped, and the fixing block is located between two symmetrical limiting grooves.
[0013] Preferably, the two sides of the mounting bracket are respectively attached to the two sides of the inner cavity of the lifting frame, the trowel plate is T-shaped, and the bottom of the trowel plate is arc-shaped.
[0014] In summary, this application includes at least one of the following beneficial technical effects:
[0015] 1. This utility model uses a starting cylinder to drive the lifting frame to move. The limiting sleeve limits the movement of the lifting frame, which in turn drives the mounting frame to move downwards. This causes the mounting frame to drive the screed to move downwards, so that the bottom of the screed is in contact with the ground. When the pouring vehicle is started, the screed can smooth the asphalt pouring surface, avoiding the need for the user to hold the screed and bend over for a long time, thus reducing the user's energy consumption.
[0016] 2. By incorporating a spring, this utility model ensures that the spring contracts under the pressure of the mounting bracket when the trowel plate is in contact with the ground. This prevents the trowel plate from breaking due to excessive downward pressure, thus improving the safety of the trowel plate in contact with the ground.
[0017] 3. By setting up a baffle, this utility model can block the asphalt that accumulates during the asphalt pouring surface when the sizing plate is sizing it, thus preventing asphalt from entering the inner cavity of the installation groove and preventing asphalt from sticking at the connection between the sizing plate and the installation groove. Attached Figure Description
[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings:
[0019] Figure 1 is a front view schematic diagram of the structure of this utility model.
[0020] Figure 2 is a three-dimensional schematic diagram of the structure of this utility model.
[0021] Figure 3 is a three-dimensional disassembled schematic diagram of the structure of this utility model.
[0022] Figure 4 is a partial enlarged view of point A in structural diagram 3 of this utility model.
[0023] Explanation of reference numerals in the attached drawings: 1. Pouring vehicle body; 2. Fixing frame; 3. Limiting sleeve; 4. Lifting frame; 5. Fixing block; 6. Limiting groove; 7. Fixing plate; 8. Cylinder; 9. Mounting bracket; 10. Mounting groove; 11. Smoothing plate; 12. Limiting block; 13. Bolt; 14. Sliding rod; 15. Spring; 16. Baffle. Detailed Implementation
[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0025] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0026] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0027] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0028] In addition, the term "multiple" should mean two or more.
[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0030] Example 1:
[0031] Referring to Figures 2, 3, and 4, this application discloses a highway crack repair device, including a pouring vehicle body 1. A fixing frame 2 is provided at the bottom of the pouring vehicle body 1. Limiting sleeves 3 are fixedly connected to both the front and back of the fixing frame 2. The limiting sleeves 3 are square sleeves. The lifting frame 4 is U-shaped. A fixing block 5 is located between two symmetrical limiting grooves 6. The lifting frame 4 is provided at the bottom of the fixing frame 2. The top of the lifting frame 4 passes through the limiting sleeve 3 and is slidably connected to the limiting sleeve 3. The bottom of the inner cavity of the lifting frame 4 is fixedly connected to the fixing block 5. Two symmetrical limiting grooves 6 are opened at the bottom of the inner cavity of the lifting frame 4. A fixing plate 7 is fixedly connected to the inner cavity of the fixing frame 2. A cylinder 8 is fixedly connected to the top of the fixing plate 7 by bolts. The output end of the cylinder 8 passes through the fixing plate 7 and is fixedly connected to the top of the fixing block 5. A mounting frame 9 is provided at the bottom of the lifting frame 4. Four symmetrical sliding rods 14 are fixedly connected to the top of the mounting frame 9. The top of the slide rod 14 extends through the inner cavity of the lifting frame 4 and is slidably connected to the lifting frame 4. A spring 15 is sleeved on the surface of the slide rod 14. The top of the spring 15 is fixedly connected to the bottom of the lifting frame 4, and the bottom of the spring 15 is fixedly connected to the mounting frame 9. With the setting of the spring 15, when the trowel plate 11 is in contact with the ground, the spring 15 will be compressed by the mounting frame 9 to prevent the trowel plate 11 from breaking due to excessive downward pressure, thus improving the safety of the trowel plate 11 in contact with the ground. The bottom of the mounting frame 9 is provided with a mounting groove 10, and the inner cavity of the mounting groove 10 is slidably connected to the trowel plate 11. The inner cavity of the lifting frame 4 is provided with two symmetrical limiting blocks 12. The bottom of the limiting blocks 12 passes through the limiting groove 6 and is fixedly connected to the top of the mounting frame 9. A bolt 13 is provided through the right side of the mounting frame 9. The bolt 13 passes through the inner cavity of the mounting groove 10 and is threadedly connected to the trowel plate 11.
[0032] Example 2:
[0033] Referring to Figures 3 and 4, the two sides of the mounting frame 9 are respectively attached to the two sides of the inner cavity of the lifting frame 4. The squeegee 11 is T-shaped with an arc-shaped bottom. Both sides of the squeegee 11 are fixedly connected to baffles 16. The top of the baffles 16 is attached to the bottom of the mounting frame 9. By setting the baffles 16, when the squeegee 11 is smoothing the asphalt pouring surface, the baffles 16 will block the asphalt that accumulates during smoothing, preventing asphalt from entering the inner cavity of the mounting groove 10 and preventing asphalt from sticking at the connection between the squeegee 11 and the mounting groove 10.
[0034] Working principle: When using this utility model, the user starts the cylinder 8, which pushes the lifting frame 4 to move. Through the limiting sleeve 3, the lifting frame 4 drives the mounting frame 9 downward through the limiting block 12, which in turn drives the smearing plate 11 downward. This causes the bottom of the smearing plate 11 to be in contact with the ground. Starting the pouring vehicle body 1 allows the smearing plate 11 to smooth the asphalt pouring surface, avoiding the need for the user to hold the smearing plate and bend over for a long time, reducing the user's energy consumption. When the smearing plate 11 is in contact with the ground, the spring 15 will be compressed by the mounting frame 9 to prevent the smearing plate 11 from breaking due to excessive downward pressure, thus improving the safety of the smearing plate 11 in contact with the ground.
[0035] In summary, this highway crack repair device, by activating cylinder 8, causes cylinder 8 to push the lifting frame 4 to move. Through the limiting sleeve 3, the lifting frame 4 drives the mounting frame 9 to move downward, which in turn drives the squeegee 11 to move downward, so that the bottom of the squeegee 11 is in contact with the ground. Activating the pouring vehicle body 1 allows the squeegee 11 to smooth the asphalt pouring surface, avoiding the need for the user to hold the squeegee and bend over for a long time, thus reducing the user's energy consumption.
[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A highway crack repair device, characterized by, The system includes a pouring truck body (1), a fixed frame (2) at the bottom of the pouring truck body (1), a limit sleeve (3) fixedly connected to the front and back of the fixed frame (2), a lifting frame (4) at the bottom of the fixed frame (2), the top of the lifting frame (4) passing through the limit sleeve (3) and slidingly connected to the limit sleeve (3), a fixed block (5) fixedly connected to the bottom of the inner cavity of the lifting frame (4), two symmetrical limit grooves (6) opened at the bottom of the inner cavity of the lifting frame (4), a fixed plate (7) fixedly connected to the inner cavity of the fixed frame (2), and a cylinder (8) fixedly connected to the top of the fixed plate (7) by bolts. (8) The output end passes through the fixed plate (7) and is fixedly connected to the top of the fixed block (5). The bottom of the lifting frame (4) is provided with a mounting frame (9). The bottom of the mounting frame (9) is provided with a mounting groove (10). The inner cavity of the mounting groove (10) is slidably connected with a smearing plate (11). The inner cavity of the lifting frame (4) is provided with two symmetrical limiting blocks (12). The bottom of the limiting block (12) passes through the limiting groove (6) and is fixedly connected to the top of the mounting frame (9). The right side of the mounting frame (9) is provided with a bolt (13). The bolt (13) passes through the inner cavity of the mounting groove (10) and is threadedly connected to the smearing plate (11).
2. The highway crack repair device according to claim 1, characterized in that: The top of the mounting bracket (9) is fixedly connected with four symmetrical sliding rods (14), the top of which penetrates into the inner cavity of the lifting frame (4) and is slidably connected to the lifting frame (4).
3. A highway crack repair device as claimed in claim 2, wherein: A spring (15) is fitted on the surface of the slide bar (14). The top of the spring (15) is fixedly connected to the bottom of the lifting frame (4), and the bottom of the spring (15) is fixedly connected to the mounting frame (9).
4. A road crack repair device according to claim 3, wherein: Both sides of the squeegee (11) are fixedly connected with baffles (16), and the top of the baffles (16) is in contact with the bottom of the mounting bracket (9).
5. A road crack repair device according to claim 4, wherein: The limiting sleeve (3) is a square sleeve, the lifting frame (4) is U-shaped, and the fixing block (5) is located between two symmetrical limiting grooves (6).
6. A road crack repair device according to claim 5, wherein: The two sides of the mounting bracket (9) are respectively attached to the two sides of the inner cavity of the lifting frame (4), the smearing plate (11) is T-shaped, and the bottom of the smearing plate (11) is arc-shaped.