A frost-resistant structure for roadbed mulching with lime-mixed clay

Abstract

This utility model provides a frost-resistant mulch film structure for cement-mixed clay subgrade, relating to the field of road engineering technology. The frost-resistant mulch film structure for cement-mixed clay subgrade includes an installation frame. A film-laying assembly is located at the top of the installation frame. The film-laying assembly includes a fixed box, and a movable frame is located on the front side of the fixed box. A pressure roller is rotatably connected to the inner side of the movable frame. A motor is fixedly connected to the inner cavity of the fixed box, and a rotating rod is rotatably connected to the inner cavity of the fixed box. This technical solution, through the setting of the film-laying assembly, can achieve uniform compaction of the protective film during the mulching process of cement-mixed clay subgrade. This film-laying assembly not only improves the tightness of the adhesion between the protective film and the ground, but also significantly reduces the generation of common defects such as air bubbles and voids, thereby comprehensively improving the construction quality and durability of the mulch layer. Simultaneously, the film-laying assembly also has the function of vibrating and compacting and leveling the footprints left on the subgrade surface by personnel movement during construction.

Description

Technical Field

[0001] This utility model relates to the field of road engineering technology, and in particular to a frost-resistant structure for mortar-mixed clay roadbed mulching. Background Technology

[0002] Lime-clay subgrade mulching for frost protection is a protective measure taken during subgrade construction to prevent frost damage caused by low winter temperatures. This type of mulching effectively improves the subgrade's frost resistance, ensuring normal road use during cold seasons. However, the specific construction plan needs to be determined after comprehensively considering local geological conditions, climate characteristics, and project requirements.

[0003] In the existing process of covering lime-mixed clay subgrade with geomembrane, the lack of restraining structures during the laying of the geomembrane and the subgrade leads to a height difference, resulting in localized loose adhesion between the geomembrane and the ground. This height difference not only causes adhesion problems between the geomembrane and the ground but also easily generates defects such as air bubbles, voids, and even water blisters during the covering process, seriously affecting the flatness and sealing of the geomembrane and reducing its antifreeze and anti-seepage effects.

[0004] Secondly, in traditional manual mulching operations, construction workers need to move back and forth on the roadbed surface, inevitably leaving footprints on the unmulched lime-clay subgrade. These footprints not only disrupt the smoothness of the roadbed surface but may also create localized weak points during subsequent compaction, affecting the overall compaction quality. Currently, the common approach is to rely on simple compaction plates to shovel and level the footprint areas, lacking effective compaction methods. This makes it difficult to achieve efficient and thorough treatment of the footprint areas, further impacting the adhesion between the mulch and the roadbed and the overall structural stability. Utility Model Content

[0005] The purpose of this invention is to provide a frost-resistant membrane structure for lime-mixed clay subgrade, which avoids problems such as poor adhesion between the protective membrane and the ground, resulting in air bubbles and water blisters, thus affecting the frost-resistant and seepage-proof effect of existing lime-mixed clay subgrade membranes. At the same time, the footprints left by construction workers during manual membrane covering are difficult to completely remove with traditional pressure plates, affecting the compaction quality and membrane adhesion.

[0006] This utility model provides a frost-proofing structure for mortar-mixed clay roadbed mulching, including an installation frame. The top of the installation frame is provided with a film-laying assembly. The film-laying assembly includes a fixed box. A movable frame is provided on the front side of the fixed box. A pressure roller is rotatably connected to the inner side of the movable frame. A motor is fixedly connected to the inner cavity of the fixed box. A rotating rod is rotatably connected to the inner cavity of the fixed box. A running rod is rotatably connected to the inner cavity of the fixed box.

[0007] In one specific implementation, the output shaft of the motor is fixedly connected to the rear end of the running rod, and the surfaces of the running rod and the rotating rod are fitted with pulleys, which are connected by belt drive.

[0008] In one specific implementation, the front ends of the rotating rod and the running rod extend to the front side of the fixed box, and guide plates are fixedly connected to the front ends of the rotating rod and the running rod, respectively.

[0009] In one specific implementation, a push rod is connected to the front side of the guide plate, and the push rod is slidably connected to the rear side of the movable frame, while the rear side of the movable frame is slidably connected to the front side of the mounting frame.

[0010] In one specific implementation, a film-coating component is provided on the rear side of the movable frame, and round rods are provided on both the left and right sides of the bottom of the fixed box, with one end of the round rods rotatably connected to the inner side of the mounting frame, and the inner side of the film-coating component is installed with one end of the two round rods.

[0011] In one specific implementation, a fixing frame is provided on the rear side of the fixing box, and the front side of the fixing frame is fixedly connected to the rear side of the mounting frame.

[0012] In one specific implementation, the left and right sides of the rear side of the fixing frame are connected to limit plates, and the bottom of the limit plates is fixedly connected to pressure plates.

[0013] In one specific implementation, connecting plates are fixedly connected to both the left and right sides of the inner cavity of the fixing frame, a long plate is fixedly connected to the bottom of the connecting plate, positioning plates are fixedly connected to both the left and right sides of the fixing frame, a protective rod is fixedly connected to the bottom of the positioning plate, a return spring is connected to the inner cavity of the protective rod, a pressure rod is fixedly connected to the bottom end of the return spring, a compaction plate is fixedly connected to the bottom end of the pressure rod, and arc plates are fixedly connected to the bottom of both the compaction plate and the long plate.

[0014] In one specific implementation, a vibration motor is connected to the top of the pressure plate, and the pressure plate is L-shaped.

[0015] In one specific implementation, a support rod is fixedly connected to the top of the fixed box, a mounting plate is fixedly connected to the surface of the support rod, and a power supply box is fixedly connected to the inner side of the mounting plate.

[0016] The beneficial effects of this application are as follows: By setting up the membrane laying component, uniform compaction of the protective membrane can be achieved during the membrane covering process of the lime-clay subgrade. This membrane laying component not only improves the tightness of the adhesion between the protective membrane and the ground, but also significantly reduces the occurrence of common defects such as air bubbles and voids, thereby comprehensively improving the construction quality and durability of the membrane layer. At the same time, the membrane laying component also has the function of vibrating and compacting and smoothing the footprints left on the subgrade surface by personnel walking during construction, further ensuring the flatness of the subgrade surface and the consistency of the membrane covering effect, enhancing the comprehensive performance of the protective membrane in terms of antifreeze, seepage prevention, and weathering resistance, and improving the overall construction efficiency and project stability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 This is a side view of the overall structure of an embodiment of the present utility model;

[0020] Figure 3 This is a three-dimensional schematic diagram of the disassembled fixed box structure according to an embodiment of the present utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the pressure roller structure according to an embodiment of the present utility model;

[0022] Figure 5 This is a three-dimensional schematic diagram of the pressure plate structure according to an embodiment of the present utility model;

[0023] Figure 6 This is a three-dimensional schematic diagram of the disassembled protective rod structure according to an embodiment of the present utility model;

[0024] Figure 7 This is a three-dimensional schematic diagram of the adjustment state of the pressure roller structure according to an embodiment of the present utility model;

[0025] Figure 8 This is a schematic diagram of the three-dimensional structure of the arc plate according to an embodiment of the present utility model.

[0026] Icons: 1. Mounting frame; 2. Film laying assembly; 21. Fixing box; 22. Motor; 23. Rotating rod; 24. Running rod; 25. Pulley; 26. Guide plate; 27. Push rod; 28. Moving frame; 29. ​​Pressure roller; 210. Round rod; 211. Film covering component; 212. Fixing frame; 213. Pressure plate; 214. Connecting plate; 215. Long plate; 216. Vibration motor; 217. Limiting plate; 218. Positioning plate; 219. Protective rod; 220. Return spring; 221. Pressure rod; 222. Compacting plate; 223. Arc plate; 3. Handrail; 4. Mounting plate; 5. Power supply box. Detailed Implementation

[0027] In existing methods of mulching lime-clay subgrades, the protective membrane often fails to adhere tightly to the ground, resulting in air bubbles and water pockets, which negatively impacts frost protection and seepage prevention. Furthermore, footprints left by construction workers during manual mulching are difficult to completely remove with traditional pressure plates, affecting compaction quality and membrane adhesion. Therefore, the inventors have developed a frost protection mulching structure for lime-clay subgrades. The membrane-laying component ensures uniform compaction of the protective membrane, improving adhesion, reducing air bubbles and voids, and significantly enhancing the quality and durability of the mulch layer. Simultaneously, this component can vibrate and compact footprints generated during construction, further ensuring surface smoothness and membrane consistency, enhancing frost protection, seepage prevention, and weathering resistance, improving construction efficiency and project stability, thereby resolving the aforementioned deficiencies.

[0028] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] Please refer to Figures 1 to 8 This utility model provides a frost-resistant mulch structure for cement-mixed clay roadbed, including an installation frame 1. The top of the installation frame 1 is provided with a film-laying assembly 2. The film-laying assembly 2 includes a fixing box 21, and the bottom of the fixing box 21 is fixedly connected to the top of the installation frame 1. The front side of the fixing box 21 is provided with a movable frame 28. The inner side of the movable frame 28 is rotatably connected with a pressure roller 29. The inner cavity of the fixing box 21 is fixedly connected with a motor 22. The inner cavity of the fixing box 21 is rotatably connected with a rotating rod 23. The inner cavity of the fixing box 21 is rotatably connected with a running rod 24. The output shaft of the motor 22 is fixedly connected to the rear end of the running rod 24. The surfaces of the running rod 24 and the rotating rod 23 are fitted with pulleys 25, and the pulleys 25 are connected by belt drive.

[0030] Please refer to Figures 2 to 8The front ends of the rotating rod 23 and the running rod 24 extend to the front side of the fixed box 21, and the contact area between the rotating rod 23 and the running rod 24 is rotatably connected by a bearing. Guide plates 26 are fixedly connected to the front ends of the rotating rod 23 and the running rod 24, and a push rod 27 is connected to the front side of the guide plate 26. The push rod 27 is slidably connected to the rear side of the moving frame 28, and the rear side of the moving frame 28 is slidably connected to the front side of the mounting frame 1. Slide plates are fixedly connected to both the left and right sides of the rear side of the moving frame 28, and the mounting frame 1... The front left and right sides are provided with sliding grooves for sliding connection with the sliding plate. The rear side of the moving frame 28 is provided with a film covering component 211. The bottom left and right sides of the fixed box 21 are provided with round rods 210, and one end of the round rods 210 is rotatably connected to the inner side of the mounting frame 1. The inner side of the film covering component 211 is installed with one end of the two round rods 210. The film covering component 211 is a protective film for covering the gray clay roadbed and a protective film tube. The rear side of the fixed box 21 is provided with a fixing frame 212, and the front of the fixing frame 212 is... The side is fixedly connected to the rear side of the mounting frame 1. Limiting plates 217 are connected to both the left and right sides of the rear side of the fixing frame 212. Pressure plates 213 are fixedly connected to the bottom of the limiting plates 217. Connecting plates 214 are fixedly connected to both the left and right sides of the inner cavity of the fixing frame 212. Long plates 215 are fixedly connected to the bottom of the connecting plates 214. Positioning plates 218 are fixedly connected to both the left and right sides of the fixing frame 212. Protective rods 219 are fixedly connected to the bottom of the positioning plates 218. Return springs 22 are connected to the inner cavity of the protective rods 219. 0. The bottom end of the return spring 220 is fixedly connected to a pressure rod 221, and the bottom end of the pressure rod 221 is fixedly connected to a compaction plate 222. The bottom of the compaction plate 222 and the long plate 215 are both fixedly connected to an arc plate 223. The arc plate 223 is in contact with the laid protective film, while the back side of the compaction plate 222 and the long plate 215 is not in contact with the protective film. Thus, the curvature of the arc plate 223 is used to smooth the wrinkled protective film or the uneven ground, and to prevent the protective film from being squeezed and wrinkled.

[0031] Please refer to Figures 3 to 8 The top of the pressure plate 213 is connected to the vibration motor 216, and the pressure plate 213 is L-shaped. The top of the fixed box 21 is fixedly connected to the support rod 3, and the surface of the support rod 3 is fixedly connected to the mounting plate 4. The inner side of the mounting plate 4 is fixedly connected to the power supply box 5, and the power supply box 5 is electrically connected to the vibration motor 216 and the motor 22. Both the vibration motor 216 and the motor 22 are small models to meet the design requirements of the overall compact structure.

[0032] Specifically, when applying a protective film to the gray clay subgrade for frost protection, motor 22 is started. Motor 22 drives the running rod 24 to rotate, which in turn drives the pulley 25 and rotating rod 23 to rotate. The running rod 24 drives the rotating rod 23 to rotate the guide plate 26, which in turn drives the push rod 27 to move. This causes the push rod 27 to push the moving frame 28 and pressure roller 29 to move up and down. Simultaneously, during the movement of the fixed frame 212, the long plate 215 moves downwards. The long plate 215 is responsible for compacting the laid protective film. When addressing the edge of the protective film and its overlap with the edge of the protective film, [the following can be done]... The pressure bar 221 pushes the compaction plate 222 and the overlapping edge part with the elastic force of the return spring 220 to press down and compact, thereby avoiding air bubbles during the laying process. The pressure roller 29 compacts the protective film and the raised part of the ground, thereby preventing the protective film from sticking to the gray clay subgrade during the laying process and causing water bubbles. During the laying process, the vibration motor 216 can also be activated to vibrate the pressure plate 213, so that the pressure plate 213 compacts and flattens the user's footprints on the gray clay subgrade.

[0033] In summary, the working principle of the frost-proofing membrane covering structure for lime-clay roadbed according to this utility model embodiment is as follows: The user moves the membrane laying component 2 to the lime-clay roadbed that needs to be laid, and then manually attaches the membrane covering component 211 to the lime-clay roadbed. After attachment, the user moves the membrane covering component 211 by carrying it with the handrail 3. During the movement, the membrane laying component 2 presses down and limits the membrane covering component 211, thereby preventing the membrane covering component 211 from sticking to the ground. The footprints formed by the user on the lime-clay roadbed during the movement can be evenly compacted by the vibration of the membrane laying component 2, making it easy to use.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lime-mixed clay roadbed anti-freezing structure, characterized in that, The system includes an installation frame (1), a film-laying assembly (2) on the top of the installation frame (1), a fixed box (21) on the front side of the fixed box (21), a movable frame (28) on the front side of the fixed box (28), a pressure roller (29) rotatably connected to the inner side of the movable frame (28), a motor (22) fixedly connected to the inner cavity of the fixed box (21), a rotating rod (23) rotatably connected to the inner cavity of the fixed box (21), and a running rod (24) rotatably connected to the inner cavity of the fixed box (21).

2. The lime-soil roadbed anti-freezing structure according to claim 1, characterized in that, The output shaft of the motor (22) is fixedly connected to the rear end of the running rod (24). The running rod (24) and the rotating rod (23) are fitted with pulleys (25), and the pulleys (25) are connected by belt drive.

3. The lime-soil roadbed anti-freezing structure according to claim 2, characterized in that, The front ends of the rotating rod (23) and the running rod (24) extend to the front side of the fixed box (21), and the front ends of the rotating rod (23) and the running rod (24) are respectively fixedly connected to guide plates (26).

4. The lime-soil roadbed anti-freezing structure according to claim 3, characterized in that, The front side of the guide plate (26) is connected to a push rod (27), and the push rod (27) is slidably connected to the rear side of the moving frame (28), while the rear side of the moving frame (28) is slidably connected to the front side of the mounting frame (1).

5. The frost-resistant structure for lime-mixed clay roadbed mulching according to claim 4, characterized in that, The rear side of the movable frame (28) is provided with a film covering component (211), and the bottom left and right sides of the fixed box (21) are provided with round rods (210), and one end of the round rods (210) is rotatably connected to the inner side of the mounting frame (1). The inner side of the film covering component (211) is installed with one end of the two round rods (210).

6. The lime-soil roadbed anti-freezing structure according to claim 5, wherein, The rear side of the fixed box (21) is provided with a fixed frame (212), and the front side of the fixed frame (212) is fixedly connected to the rear side of the mounting frame (1).

7. The lime-soil roadbed anti-freezing structure according to claim 6, wherein, Limiting plates (217) are connected to both the left and right sides of the rear side of the fixing frame (212), and a pressure plate (213) is fixedly connected to the bottom of the limiting plate (217).

8. The lime-soil roadbed anti-freezing structure according to claim 7, characterized in that, Connecting plates (214) are fixedly connected to the left and right sides of the inner cavity of the fixing frame (212). A long plate (215) is fixedly connected to the bottom of the connecting plate (214). Positioning plates (218) are fixedly connected to the left and right sides of the fixing frame (212). A protective rod (219) is fixedly connected to the bottom of the positioning plate (218). A return spring (220) is connected to the inner cavity of the protective rod (219). A pressure rod (221) is fixedly connected to the bottom of the return spring (220). A compaction plate (222) is fixedly connected to the bottom of the pressure rod (221). A circular arc plate (223) is fixedly connected to the bottom of both the compaction plate (222) and the long plate (215).

9. The lime-soil roadbed anti-freezing structure according to claim 8, wherein, The top of the pressure plate (213) is connected to a vibration motor (216), and the pressure plate (213) is L-shaped.

10. The frost-resistant structure for lime-mixed clay roadbed mulching according to claim 1, characterized in that, The top of the fixed box (21) is fixedly connected to a handrail (3), the surface of the handrail (3) is fixedly connected to a mounting plate (4), and the inner side of the mounting plate (4) is fixedly connected to a power supply box (5).

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