A roadbed widening and splicing roadbed structure

By using the insertion shaft and positioning groove of the splicing plate structure, and utilizing the return spring and snap-fit, rapid splicing is achieved. Rubber pads and waterproof layers are set on the surface of the splicing plate, which solves the problems of loose connection and waterproofing during the roadbed widening construction, and achieves a fast and stable roadbed widening effect.

CN224280921UActive Publication Date: 2026-05-26GUANGDONG PROVINCE COMM PLANNING & DESIGN INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG PROVINCE COMM PLANNING & DESIGN INST
Filing Date
2025-02-20
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

During the existing roadbed widening construction, the bolt connections are loose and the construction period is long, making it difficult to ensure a tight bond at the joints, which can easily lead to cracks and misalignments.

Method used

The system adopts a splicing plate structure. Through the cooperation of the insert shaft rod and the positioning groove, the splicing plates are quickly connected by the return spring and the snap fastener. Rubber pads and waterproof layers are set on the surface of the splicing plates to enhance waterproof performance.

Benefits of technology

It achieves a rapid and stable connection for widening the roadbed, reduces rainwater infiltration, and improves the waterproof performance of the joints and the stability of the overall structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of roadbed engineering technology and discloses a roadbed widening and splicing structure, including a splicing plate one. A shaft rod is fixedly connected to the surface of the splicing plate one. A receiving groove is formed inside the shaft rod, and a return spring is fixedly connected to the inner wall of the receiving groove. This utility model achieves splicing through the cooperation of the shaft rod and the positioning groove. When the shaft rod is inserted into the positioning groove, the pressure of the positioning groove wall causes the spring clip to compress the return spring and retract into the receiving groove. The shaft rod continues to be inserted, and when the spring clip reaches the spring slot position, the spring clip is engaged in the spring slot under the return spring's reset action, completing the splicing of splicing plate one and splicing plate two. The operation is simple and convenient, allowing two adjacent splicing plates to be tightly joined quickly, forming a stable whole, thereby effectively widening the roadbed. The rubber pad can compensate for the gaps between splicing plate one and splicing plate two during splicing, reducing rainwater penetration and providing reliable waterproof protection for the roadbed structure.
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Description

Technical Field

[0001] This utility model relates to the field of roadbed engineering technology, and in particular to a roadbed widening and splicing structure. Background Technology

[0002] With the continuous development of the economy, trade and personnel exchanges between regions are becoming more and more frequent. As the main transportation channel, highways are experiencing a continuous increase in traffic volume. The original roadbed width is no longer able to meet the growing traffic demand, and it is necessary to widen the roadbed.

[0003] In previous roadbed widening construction, the connection method for adjacent splicing parts was mostly simple bolt connection or direct stacking and then pouring concrete. Bolt connection is prone to loosening, affecting the integrity of the roadbed; while the method of stacking and then pouring has a long construction period and it is difficult to ensure a tight bond at the splicing point. Under the influence of long-term vehicle load and natural factors, cracks and misalignment are prone to occur. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a roadbed widening and splicing roadbed structure.

[0005] This utility model is achieved using the following technical solution: a roadbed widening and splicing roadbed structure, including a splicing plate one, a shaft rod fixedly connected to the surface of the splicing plate one, a storage groove opened inside the shaft rod, a return spring fixedly connected to the inner wall of the storage groove, a spring buckle fixedly connected to the surface of the return spring, a splicing plate two being snapped together by the spring buckle, rubber pads fixedly connected to the surfaces of both splicing plate one and splicing plate two, a waterproof layer provided on the surfaces of both splicing plate one and splicing plate two, a positioning groove opened on the surface of both splicing plate one and splicing plate two, and a spring retainer groove opened on the inner wall of the positioning groove.

[0006] The above technical solution achieves the widening of the roadbed. By splicing the splicing plates, adjacent splicing plates form an overall widened roadbed, which effectively improves the waterproof performance. The rubber pad and waterproof layer work together to reduce the impact of rainwater on the roadbed.

[0007] As a further improvement to the above solution, the waterproof layer is made of modified emulsified asphalt.

[0008] The above technical solutions improve the waterproof performance of the splicing slabs, and the properties of the modified emulsified asphalt enable it to better adapt to different environmental conditions, extending the service life of the splicing slabs and thus ensuring the stability of the roadbed widening structure.

[0009] As a further improvement to the above solution, the positioning groove is adapted to the insertion shaft rod.

[0010] The above technical solutions ensured the accuracy and stability of the splicing process.

[0011] As a further improvement to the above solution, the spring slot is adapted to the spring buckle.

[0012] As a further improvement to the above solution, prepositioning rods are fixedly connected to the surfaces of both splicing plate one and splicing plate two.

[0013] As a further improvement to the above solution, both splicing plate one and splicing plate two have preset holes on their surfaces.

[0014] The above technical solutions enhance the accuracy and stability of the splicing process, and, in conjunction with the pre-positioning rod, make the splicing process smoother.

[0015] As a further improvement to the above solution, the prepositioning rod and the pre-set hole are adapted to each other.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention achieves splicing through the cooperation of a shaft rod and a positioning groove. When the shaft rod is inserted into the positioning groove, the pressure of the positioning groove wall causes the spring clip to compress and retract into the receiving groove. The shaft rod continues to be inserted, and when the spring clip reaches the spring slot position, the spring clip is engaged in the spring slot under the reset action of the reset spring, completing the splicing of splicing plate one and splicing plate two. The operation is simple and convenient, and it can quickly make two adjacent splicing plates tightly joined together to form a stable whole, thereby effectively widening the roadbed. The rubber pad can compensate for the gap between splicing plate one and splicing plate two when they are spliced, reducing rainwater penetration and providing reliable waterproof protection for the roadbed structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the insert shaft of this utility model;

[0020] Figure 3 This is a schematic diagram of the spring-loaded buckle of this utility model;

[0021] Figure 4 This is a cross-sectional view of the spring slot of this utility model.

[0022] Explanation of key symbols:

[0023] 1. Splicing plate one; 2. Insert shaft rod; 3. Storage groove; 4. Return spring; 5. Spring buckle; 6. Splicing plate two; 7. Rubber pad; 8. Waterproof layer; 9. Positioning groove; 10. Spring clip groove; 11. Pre-positioning rod; 12. Pre-set hole. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] Example:

[0026] Please combine Figure 1-4 This embodiment of a roadbed widening and splicing roadbed structure includes a splicing plate 1. A shaft rod 2 is fixedly connected to the surface of splicing plate 1. A storage groove 3 is provided inside the shaft rod 2. A return spring 4 is fixedly connected to the inner wall of the storage groove 3. A spring clip 5 is fixedly connected to the surface of the return spring 4. A splicing plate 2 6 is snapped onto splicing plate 1 via the spring clip 5. Rubber pads 7 are fixedly connected to the surfaces of both splicing plate 1 and splicing plate 2 6. A waterproof layer 8 is provided on the surfaces of both splicing plate 1 and splicing plate 2 6. A positioning groove 9 is provided on the surface of both splicing plate 1 and splicing plate 2 6. A spring clip 10 is provided on the inner wall of the positioning groove 9. The splicing is achieved by the cooperation of the insert rod 2 and the positioning groove 9. The insert rod 2 has a storage groove 3 inside, and a return spring 4 connected to the snap fastener 5 inside the storage groove 3. When the insert rod 2 is inserted into the positioning groove 9, the pressure of the hole wall of the positioning groove 9 causes the snap fastener 5 to compress the return spring 4 and retract into the storage groove 3. The insert rod 2 continues to be inserted. When the snap fastener 5 reaches the position of the spring slot 10, the snap fastener 5 is locked into the spring slot 10 under the reset action of the return spring 4, completing the splicing of splicing plate 1 and splicing plate 2. The rubber pad 7 compensates for the gap between splicing plate 1 and splicing plate 2 when they are spliced, reducing rainwater penetration. The waterproof layer 8 improves the waterproof performance of the surfaces of splicing plate 1 and splicing plate 2.

[0027] The waterproof layer 8 is made of modified emulsified asphalt. Modified emulsified asphalt has good waterproof performance. When applied to the surfaces of splice plate 1 and splice plate 2, it can prevent water from penetrating into the interior of the splice plate.

[0028] The positioning groove 9 is adapted to the insertion shaft 2, so that the insertion shaft 2 can be accurately inserted into the positioning groove 9.

[0029] The spring slot 10 is adapted to the spring buckle 5, so that the spring buckle 5 can be engaged in the spring slot 10 at the appropriate position, thereby fixing the position of the insert shaft rod 2 in the positioning groove 9 and realizing the stable splicing of splicing plate 1 and splicing plate 2 6.

[0030] Both splicing panel 1 and splicing panel 2 are fixedly connected to pre-positioning rods 11. During the splicing process, the pre-positioning rods 11 can play a preliminary positioning role, and at the same time strengthen the overall structural strength after the splicing panels are connected.

[0031] Both splicing plate 1 and splicing plate 2 are provided with preset holes 12. When the positioning rod 11 is inserted into the preset hole 12, the relative position of splicing plate 1 and splicing plate 2 can be further determined.

[0032] The prepositioning rod 11 and the pre-set hole 12 are compatible.

[0033] The implementation principle of a roadbed widening and splicing roadbed structure in this application embodiment is as follows: First, the operator brings splicing plate 1 and splicing plate 2 close together, aligning the pre-positioning rod 11 on the surface of splicing plate 1 with the pre-positioning hole 12 on the surface of splicing plate 2. Next, the operator aligns the insert rod 2 on the surface of splicing plate 1 with the positioning groove 9 on the surface of splicing plate 2. Since the positioning groove 9 and the insert rod 2 are compatible, the insert rod 2 can be accurately aligned with the entrance of the positioning groove 9. Then, the insert rod 2 is slowly inserted into the positioning groove 9. When the insert rod 2 enters the inner wall of the positioning groove 9, the hole wall of the positioning groove 9 will apply pressure to the insert rod 2. Because the return spring 4 inside the receiving groove 3 of the insert rod 2 is connected to the snap 5, under the pressure of the hole wall, the snap 5 will compress the return spring 4, thereby retracting into the receiving groove 3. The operator continues... Insert the insert rod 2 into the positioning groove 9 until the spring clip 5 moves to the position of the spring slot 10 on the inner wall of the positioning groove 9. Since the spring slot 10 is compatible with the spring clip 5, the spring clip 5 is locked into the spring slot 10 under the reset action of the reset spring 4, completing the splicing installation of splicing plate 1 and splicing plate 2 6, realizing a stable connection between the two splicing plates. When splicing plate 1 and splicing plate 2 6 are spliced, the rubber pad 7 on their surfaces will compensate for the gap between them. The function of the rubber pad 7 is to reduce the penetration of rainwater. By filling the gap, it prevents rainwater from entering the roadbed structure from the splicing point. At the same time, since both splicing plate 1 and splicing plate 2 6 are provided with a waterproof layer 8, the good waterproof performance of modified emulsified asphalt can further improve the waterproof performance of the surfaces of splicing plate 1 and splicing plate 2 6.

[0034] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A roadbed widening and splicing roadbed structure, characterized in that, The system includes a splicing plate one (1), on the surface of which a shaft rod (2) is fixedly connected. The shaft rod (2) has a storage groove (3) inside. The inner wall of the storage groove (3) is fixedly connected to a return spring (4). The surface of the return spring (4) is fixedly connected to a spring buckle (5). The splicing plate one (1) is snapped with a splicing plate two (6) by the spring buckle (5). The surfaces of both the splicing plate one (1) and the splicing plate two (6) are fixedly connected to rubber pads (7). The surfaces of both the splicing plate one (1) and the splicing plate two (6) are provided with a waterproof layer (8). The surfaces of both the splicing plate one (1) and the splicing plate two (6) are provided with positioning grooves (9). The inner wall of the positioning groove (9) is provided with a spring clip groove (10).

2. The roadbed widening and splicing roadbed structure as described in claim 1, characterized in that: The waterproof layer (8) is made of modified emulsified asphalt.

3. The roadbed widening and splicing roadbed structure as described in claim 1, characterized in that: The positioning groove (9) is adapted to the insert shaft (2).

4. The roadbed widening and splicing roadbed structure as described in claim 1, characterized in that: The spring slot (10) is adapted to the spring buckle (5).

5. The roadbed widening and splicing roadbed structure as described in claim 1, characterized in that: The surfaces of both splicing plate one (1) and splicing plate two (6) are fixedly connected with prepositioning rods (11).

6. The roadbed widening and splicing roadbed structure as described in claim 1, characterized in that: Both the splicing plate one (1) and the splicing plate two (6) have pre-set holes (12) on their surfaces.

7. The roadbed widening and splicing roadbed structure as described in claim 5, characterized in that: The prepositioning rod (11) and the pre-set hole (12) are compatible.