A connecting structure at the junction of rigid subgrade and flexible subgrade

Abstract

This utility model discloses a connection structure at the junction of a rigid and flexible roadbed, belonging to the field of roadbed technology. It addresses the problem of not being able to adjust the connection and installation work according to the thickness of the roadbed. The structure includes a rigid roadbed, a flexible roadbed, a surface base, and a pavement base. A fixing mechanism is provided at the junction of the rigid and flexible roadbeds. A connecting rod is connected to the fixing mechanism, and reinforcing plates are fixedly connected to both ends of the connecting rod. The reinforcing plates are located within the rigid and flexible roadbeds via the connecting rod. A support mechanism is provided on the connecting rod and is connected to the fixing mechanism. The support mechanism includes a limiting component and a supporting component. This utility model, through the combination of the fixing mechanism and the support mechanism, can adjust the support state of the support mechanism according to the connection state of the rigid and flexible roadbeds, thereby improving the connection strength between the rigid and flexible roadbeds and enhancing the stability of the roadbed connection for easier use.

Description

Technical Field

[0001] This utility model belongs to the field of roadbed technology, specifically relating to a connection structure at the junction of rigid and flexible roadbeds. Background Technology

[0002] A roadbed is a strip-shaped structure built according to the route location and certain technical requirements, serving as the foundation for the pavement. It is the basis of railways and highways, and is a linear structure constructed of earth or stone. Roadbeds are built under favorable geological, hydrological, and climatic conditions. Based on materials, roadbeds can be divided into three types: earth roadbeds, stone roadbeds, and earth-stone roadbeds.

[0003] The prior art patent publication number CN221545169U describes a rigid and flexible roadbed junction structure. This patent includes a rigid roadbed and a flexible roadbed, with an anti-crack component installed at the junction. The anti-crack component includes a support plate, with a first reinforcing plate fixedly connected to its upper and lower ends, and at least one connecting rod fixedly connected to both sides of the support plate. At least one second reinforcing plate is fixedly connected to each connecting rod. By installing the anti-crack component at the junction of the rigid and flexible roadbed, half of the anti-crack component is embedded in the rigid roadbed. The first reinforcing plate can prevent the flexible roadbed from sinking when the rigid roadbed and the flexible roadbed tend to move to both sides when the rigid roadbed and the flexible roadbed tend to move to both sides. This can improve the stability of the connection between the rigid roadbed and the flexible roadbed, making it less prone to cracking and increasing its service life. However, in actual use, there are still the following shortcomings: From a practical point of view, when connecting the roadbed, this patent cannot adjust the connection and installation work according to the thickness of the roadbed, which reduces its practicality.

[0004] Therefore, a connection structure is needed at the junction of rigid and flexible roadbeds to solve the problem in existing technologies where the connection and installation work cannot be adjusted according to the thickness of the roadbed. Utility Model Content

[0005] The purpose of this invention is to provide a connection structure at the junction of rigid and flexible roadbeds to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a connection structure at the junction of a rigid roadbed and a flexible roadbed, comprising a rigid roadbed, a flexible roadbed, a surface base, and a pavement base. The flexible roadbed is located on the right side of the rigid roadbed, the surface base is located on the upper part of the rigid and flexible roadbeds, and the pavement base is located at the bottom of the rigid and flexible roadbeds. A fixing mechanism is provided at the junction of the rigid and flexible roadbeds, and a connecting rod is connected to the fixing mechanism. Reinforcing plates are fixedly connected to both ends of the connecting rod. The reinforcing plates are located inside the rigid and flexible roadbeds through the connecting rod. A support mechanism is provided on the connecting rod, and the support mechanism is connected to the fixing mechanism. The support mechanism is located inside the rigid and flexible roadbeds through the connecting rod and the fixing mechanism.

[0007] The support mechanism includes a limiting component and a support component. The limiting component is disposed on the fixing mechanism, and the support component is connected to the limiting component and disposed on the connecting rod.

[0008] It should be noted in the solution that the fixing mechanism includes two side support plates, four connecting plates and a crossbeam. The four connecting plates are arranged in two groups of two and are fixedly connected to the two side support plates. The two ends of the crossbeam are connected to the two side support plates and are located between the two groups of connecting plates.

[0009] It is worth noting that three connecting rods are provided on the connecting plate and the crossbeam, and fastening screw sleeves are provided at the junction of the connecting plate and the crossbeam. The connecting rods are fixedly connected to the connecting plate and the crossbeam through the fastening screw sleeves.

[0010] Furthermore, it should be noted that the limiting component includes a mounting groove, which is opened on the upper part of the connecting plate, and a limiting plate is rotatably installed in the mounting groove.

[0011] In one preferred embodiment, the mounting slots are symmetrically arranged on the upper and lower parts of the connecting plate, and three slots are provided corresponding to the connecting rods.

[0012] In a preferred embodiment, the support assembly includes a hinged seat, which is fixedly connected to the bottom of the limiting plate. A support rod is hingedly mounted on the bottom of the hinged seat, and a fixed seat is hingedly mounted on the other end of the support rod. A sliding sleeve is fixedly connected to the fixed seat and slides on the connecting rod. An adjusting screw sleeve is provided on the outer side of the sliding sleeve and is threadedly connected to the connecting rod.

[0013] In a preferred embodiment, two fixing seats are provided on the sliding sleeve, and the two fixing seats are symmetrically arranged vertically on the sliding sleeve.

[0014] Compared with the prior art, the connection structure at the junction of rigid and flexible roadbeds provided by this utility model has at least the following beneficial effects: By using a fixed mechanism in conjunction with a support mechanism, the support state of the support mechanism can be adjusted according to the connection state between the rigid and flexible roadbeds, thereby improving the connection strength between the rigid and flexible roadbeds and thus enhancing the stability of the roadbed connection for easier use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal cross-sectional structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the disassembled structure of this utility model; Figure 4 This is a schematic diagram of a partially disassembled structure of the present invention.

[0016] In the diagram: 1. Rigid subgrade; 2. Flexible subgrade; 3. Surface base; 4. Road surface base; 5. Fixing mechanism; 501. Side support plate; 502. Connecting plate; 503. Crossbeam; 6. Connecting rod; 601. Fastening sleeve; 7. Reinforcing plate; 8. Support mechanism; 81. Limiting component; 811. Mounting groove; 812. Limiting plate; 82. Supporting component; 821. Hinge seat; 822. Support rod; 823. Fixing seat; 824. Sliding sleeve; 825. Adjusting sleeve. Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments.

[0018] Please see Figure 1-4 This utility model provides a connection structure at the junction of a rigid roadbed and a flexible roadbed, including a rigid roadbed 1, a flexible roadbed 2, a surface base 3, and a road surface base 4. The flexible roadbed 2 is located on the right side of the rigid roadbed 1, the surface base 3 is located on the upper part of the rigid roadbed 1 and the flexible roadbed 2, and the road surface base 4 is located at the bottom of the rigid roadbed 1 and the flexible roadbed 2. A fixing mechanism 5 is provided at the junction of the rigid roadbed 1 and the flexible roadbed 2. A connecting rod 6 is connected to the fixing mechanism 5. Reinforcing plates 7 are fixedly connected to both ends of the connecting rod 6. The reinforcing plates 7 are located inside the rigid roadbed 1 and the flexible roadbed 2 through the connecting rod 6. A support mechanism 8 is provided on the connecting rod 6. The support mechanism 8 is connected to the fixing mechanism 5 and is located inside the rigid roadbed 1 and the flexible roadbed 2 through the connecting rod 6 and the fixing mechanism 5.

[0019] The support mechanism 8 includes a limiting component 81 and a support component 82. The limiting component 81 is disposed on the fixing mechanism 5, and the support component 82 is connected to the limiting component 81 and disposed on the connecting rod 6.

[0020] Specifically, the rigid subgrade 1 is constructed with C30 concrete. The side support plate 501, connecting plate 502 and some connecting rods 6 of the fixing mechanism 5 need to be pre-embedded before concrete pouring. The pre-embedding depth is 2 / 3 of the subgrade thickness. The reinforcing plate 7 should be embedded in the concrete to ensure coordinated stress distribution. The flexible subgrade 2 is filled with graded crushed stone. The reinforcing plate 7 needs to be embedded during the filling process.

[0021] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the fixing mechanism 5 includes two side support plates 501, four connecting plates 502, and a crossbeam 503. The four connecting plates 502 are arranged in two groups of two and are fixedly connected to the two side support plates 501. The two ends of the crossbeam 503 are connected to the two side support plates 501 and are located between the two groups of connecting plates 502. Three connecting rods 6 are provided on the connecting plates 502 and the crossbeam 503. Fastening screw sleeves 601 are provided at the junction of the connecting plates 502 and the crossbeam 503. The connecting rods 6 are fixedly connected to the connecting plates 502 and the crossbeam 503 through the fastening screw sleeves 601.

[0022] In use, the connecting rod 6 can be fixedly installed on the connecting plate 502 by fastening the screw sleeve 601, and the connection between the rigid roadbed 1 and the flexible roadbed 2 can be strengthened by setting the reinforcing plate 7, thereby improving the stability of the connection between the rigid roadbed 1 and the flexible roadbed 2.

[0023] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the limiting component 81 includes a mounting groove 811, which is opened on the upper part of the connecting plate 502. A limiting plate 812 is rotatably installed in the mounting groove 811. The mounting groove 811 is symmetrically arranged on the upper and lower parts of the connecting plate 502 and has three corresponding to the connecting rod 6.

[0024] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the support assembly 82 includes a hinge seat 821, which is fixedly connected to the bottom of the limiting plate 812. A support rod 822 is hingedly installed at the bottom of the hinge seat 821, and a fixed seat 823 is hingedly installed at the other end of the support rod 822. A sliding sleeve 824 is fixedly connected to the fixed seat 823, and the sliding sleeve 824 is slidably disposed on the connecting rod 6. An adjusting screw sleeve 825 is provided on the outer side of the sliding sleeve 824, and the adjusting screw sleeve 825 is threadedly connected to the connecting rod 6. Two fixed seats 823 are provided on the sliding sleeve 824, and the two fixed seats 823 are symmetrically arranged on the sliding sleeve 824.

[0025] In use, by rotating the adjusting sleeve 825, the adjusting sleeve 825 moves threadedly on the connecting rod 6, thereby pushing the sliding sleeve 824 to slide on the connecting rod 6. This, in turn, drives the support rod 822 to rotate through the fixed seat 823. Consequently, the support rod 822 pushes the limiting plate 812 to rotate on the upper part of the connecting plate 502, thus allowing the limiting plate 812 to adjust its support angle. This allows the support angle of the limiting plate 812 to be adjusted according to the pouring thickness of the rigid roadbed 1 and the flexible roadbed 2, thereby improving the practicality of the device. Furthermore, the setting of the limiting plate 812 can improve the connection support strength between the rigid roadbed 1 and the flexible roadbed 2, thereby enhancing the practicality of the device.

[0026] Specifically, loosen the locking nut between the adjusting sleeve 825 and the sliding sleeve 824 (an additional component, not shown in the attached diagram); when the adjusting sleeve 825 is rotated clockwise, the sliding sleeve 824 moves closer to the connecting plate 502, and the support rod 822 pushes the limiting plate 812 to increase the angle; when rotated counterclockwise, the sliding sleeve 824 moves away from the connecting plate, and the angle of the limiting plate decreases; when the angle of the limiting plate 812 reaches the design value, tighten the locking nut to make the adjusting sleeve and the sliding sleeve fit tightly together.

[0027] This solution has the following working process: When this device is in use, the connecting rod 6 can be fixedly installed on the connecting plate 502 by fastening the screw sleeve 601. The reinforcing plate 7 can strengthen the connection between the rigid roadbed 1 and the flexible roadbed 2, thereby improving the stability of the connection between the rigid roadbed 1 and the flexible roadbed 2. When installing and using the device, by rotating the adjusting screw sleeve 825, the adjusting screw sleeve 825 moves on the thread of the connecting rod 6, thereby pushing the sliding sleeve 824 to slide on the connecting rod 6. Then, the fixed seat 823 drives the support rod 822 to rotate, thereby pushing the limiting plate 812 to rotate on the upper part of the connecting plate 502. This allows the limiting plate 812 to adjust the support angle. Thus, the support angle of the limiting plate 812 can be adjusted according to the pouring thickness of the rigid roadbed 1 and the flexible roadbed 2, thereby improving the practicality of the device. Furthermore, the setting of the limiting plate 812 can improve the connection support strength between the rigid roadbed 1 and the flexible roadbed 2, thereby improving the practicality of the device.

[0028] In summary: By using the fixed mechanism 5 in conjunction with the support mechanism 8, the support state of the support mechanism 8 can be adjusted according to the connection state between the rigid roadbed 1 and the flexible roadbed 2, thereby improving the connection strength between the rigid roadbed 1 and the flexible roadbed 2 and thus improving the stability of the roadbed connection, so as to facilitate its use.

Claims

1. A connection structure at the junction of a rigid roadbed and a flexible roadbed, comprising a rigid roadbed (1), a flexible roadbed (2), a surface base (3), and a pavement base (4), wherein the flexible roadbed (2) is located on the right side of the rigid roadbed (1), the surface base (3) is located on the upper part of the rigid roadbed (1) and the flexible roadbed (2), and the pavement base (4) is located at the bottom of the rigid roadbed (1) and the flexible roadbed (2), characterized in that: A fixing mechanism (5) is provided at the junction of the rigid roadbed (1) and the flexible roadbed (2). A connecting rod (6) is connected to the fixing mechanism (5). A reinforcing plate (7) is fixedly connected to both ends of the connecting rod (6). The reinforcing plate (7) is located inside the rigid roadbed (1) and the flexible roadbed (2) through the connecting rod (6). A support mechanism (8) is provided on the connecting rod (6). The support mechanism (8) is connected to the fixing mechanism (5). The support mechanism (8) is located inside the rigid roadbed (1) and the flexible roadbed (2) through the connecting rod (6) and the fixing mechanism (5). The support mechanism (8) includes a limiting component (81) and a support component (82). The limiting component (81) is disposed on the fixing mechanism (5), and the support component (82) is connected to the limiting component (81) and disposed on the connecting rod (6).

2. The connection structure at the junction of rigid and flexible roadbeds according to claim 1, characterized in that: The fixing mechanism (5) includes two side support plates (501), four connecting plates (502) and a crossbeam (503). The four connecting plates (502) are arranged in pairs and fixedly connected to the two side support plates (501). The two ends of the crossbeam (503) are connected to the two side support plates (501) and are located between the two sets of connecting plates (502).

3. The connection structure at the junction of rigid and flexible roadbeds according to claim 2, characterized in that: Three connecting rods (6) are provided on the connecting plate (502) and the crossbeam (503). A fastening sleeve (601) is provided at the junction of the connecting plate (502) and the crossbeam (503). The connecting rods (6) are fixedly connected to the connecting plate (502) and the crossbeam (503) through the fastening sleeve (601).

4. The connection structure of the rigid subgrade and the flexible subgrade according to claim 3, characterized in that: The limiting component (81) includes a mounting groove (811), which is opened on the upper part of the connecting plate (502), and a limiting plate (812) is rotatably installed in the mounting groove (811).

5. The connection structure at the junction of rigid and flexible roadbeds according to claim 4, characterized in that: The mounting slots (811) are symmetrically arranged on the upper and lower sides of the connecting plate (502) and three are provided corresponding to the connecting rods (6).

6. The connection structure at the junction of rigid and flexible roadbeds according to claim 5, characterized in that: The support assembly (82) includes a hinge seat (821), which is fixedly connected to the bottom of the limiting plate (812). A support rod (822) is hingedly installed at the bottom of the hinge seat (821), and a fixed seat (823) is hingedly installed at the other end of the support rod (822). A sliding sleeve (824) is fixedly connected to the fixed seat (823), and the sliding sleeve (824) is slidably disposed on the connecting rod (6). An adjusting screw sleeve (825) is provided on the outer side of the sliding sleeve (824), and the adjusting screw sleeve (825) is threadedly connected to the connecting rod (6).

7. The connection structure of the rigid subgrade and the flexible subgrade according to claim 6, characterized in that: Two fixing seats (823) are provided on the sliding sleeve (824), and the two fixing seats (823) are symmetrically arranged on the sliding sleeve (824).

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