Highway subgrade widening splicing structure

By setting positioning holes on both sides of the old roadbed and positioning tubes on the new roadbed, combined with positioning rods and injection pipes, the problem of insufficient adhesive flow was solved, achieving a stable connection between the new and old roadbeds and improving overall stability.

CN223423053UActive Publication Date: 2025-10-10CHINA RAILWAY FIRST GROUP CO LTD +1
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Patent Information

Application Number
CN202422829535.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-10-10
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

The existing highway roadbed widening and splicing structure does not reserve a building material adhesive filling groove at the connection between the new and old roadbeds, resulting in the adhesive being unable to fully flow in, affecting the stability of the roadbed.

Method used

Positioning holes are set on both sides of the old roadbed, and positioning tubes and splicing grooves are set in the widened splicing structure of the new roadbed. The positioning tubes are inserted into the positioning holes and filled with building material adhesive. Combined with the positioning rods and injection pipes, ensure that the adhesive is evenly filled and stably connected.

Benefits of technology

It improves the stability of the connection between the new and old roadbeds, shortens the adhesive pouring time, and enhances the overall stability of the splicing structure.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223423053U_ABST
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Abstract

The utility model provides a highway subgrade widening and splicing structure, which relates to the technical field of subgrade widening and splicing structures and comprises an old subgrade, a plurality of positioning holes are respectively arranged on two sides of the old subgrade, new subgrade widening and splicing structures are respectively arranged on two sides of the old subgrade, a splicing groove is arranged on one side of each new subgrade widening and splicing structure, and a plurality of positioning holes are arranged on the other side of each new subgrade widening and splicing structure. A plurality of positioning pipes are fixedly connected into the splicing groove in a linear arrangement mode. According to the novel roadbed widening splicing structure, by pushing the novel roadbed widening splicing structure forwards, the positioning pipes extend into the positioning holes, then the splicing grooves are filled with building material adhesives, and the joints of the old roadbed and the novel roadbed widening splicing structure, namely the interiors of the splicing grooves are evenly filled with the building material adhesives; an old roadbed and a new roadbed widening splicing structure are stably connected together, and the splicing stability of the highway roadbed widening splicing structure is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of roadbed widening and splicing structures, in particular to a highway roadbed widening and splicing structure. Background Art

[0002] Highway roadbed widening and splicing structures are mainly used in the reconstruction and expansion projects of existing highways. When the traffic volume of the original highway continues to increase and can no longer meet the growing transportation needs, the highway needs to be widened and renovated. During the widening process, in order to ensure the stability and integrity between the new and old roadbeds, so that the new and old roadbeds can jointly withstand vehicle loads and natural factors, it is necessary to adopt a reasonable splicing structure to effectively connect the two, thereby forming an overall structure that is jointly stressed and deformed in a coordinated manner.

[0003] For example, a highway roadbed widening and splicing structure disclosed in Chinese patent publication number CN220183721U includes an old roadbed, a new roadbed is arranged at the right end of the old roadbed, two installation grooves are opened at the upper end of the new roadbed, and the lower groove walls of the two installation grooves are both movably connected with connecting devices, both connecting devices are movably connected to the old roadbed, and both installation grooves are movably connected with blocking devices.

[0004] When the new roadbed widening splicing structure is initially spliced ​​on both sides of the old roadbed, it is necessary to fill the splicing with building material adhesive to further reinforce the splicing points. However, when the existing highway roadbed widening splicing structure is spliced ​​on both sides of the old roadbed, no corresponding building material adhesive filling groove is reserved at the splicing. As a result, when the building material adhesive is subsequently filled, the building material adhesive cannot fully flow into the interior of the splicing, thereby affecting the stability of the roadbed. Utility Model Content

[0005] The utility model mainly provides a highway roadbed widening and splicing structure which can be easily filled with a testing adhesive.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a highway roadbed widening splicing structure, including an old roadbed, a plurality of positioning holes are respectively opened on both sides of the old roadbed, and a new roadbed widening splicing structure is respectively provided on both sides of the old roadbed, and a splicing groove is opened on one side of the new roadbed widening splicing structure, and the interior of the splicing groove is fixedly connected with a plurality of positioning tubes in a linear arrangement, and the plurality of positioning tubes are movably passed through the interior of the positioning holes. When installing the highway roadbed widening splicing structure, the new roadbed widening splicing structure is first placed on one side of the old roadbed, and then the positioning tubes of the new roadbed widening splicing structure are aligned with the positioning holes, and the new roadbed widening splicing structure is pushed forward so that the positioning tubes extend into the interior of the positioning holes, and then the interior of the splicing groove is filled with building material adhesive, and the building material adhesive is evenly filled in the connection between the old roadbed and the new roadbed widening splicing structure, that is, the interior of the splicing groove, so that the old roadbed and the new roadbed widening splicing structure are stably connected together, thereby improving the stability of the splicing of the highway roadbed widening splicing structure.

[0007] Preferably, a filling hole is opened on one side of several of the positioning tubes. Before filling the building material adhesive into the splicing groove, an injection pipe can be passed through the filling hole to preliminarily fill a certain amount of building material adhesive into the interior of the positioning tube, so that the positioning tube and the positioning hole are stably connected, further improving the stability of the roadbed splicing.

[0008] Preferably, a positioning rod is fixedly connected to the inside of the positioning hole, and one end of the positioning rod is arranged inside the positioning tube. By arranging the positioning rod inside the positioning hole, the positioning rod can occupy the internal space of the positioning tube. When the positioning rod is located inside the positioning tube, the inside of the positioning tube can be filled without pouring too much building material adhesive, thereby shortening the time required for pouring the building material adhesive.

[0009] Preferably, lifting holes are respectively provided at both ends of the new roadbed widening splicing structure, wherein the lifting holes are used to clamp corresponding lifting equipment.

[0010] Preferably, an adjustment groove is provided at the bottom end of the lifting hole groove, and a lifting positioning groove is symmetrically provided on one side of the adjustment groove. The protruding rod at one end of the lifting rod enters the interior of the adjustment groove through the lifting hole groove, and then rotates ninety degrees and is located below the lifting positioning groove. During the lifting process, the lifting rod is lifted upward, and the protruding rod is then clamped into the interior of the lifting positioning groove to complete the rotation clamping operation.

[0011] Preferably, the lifting hole groove is movably connected to a lifting rod, and one end of the lifting rod is symmetrically fixedly connected to a protruding rod, wherein the main function of the protruding rod is to be connected to the inside of the lifting positioning groove, so that the lifting rod can drive the new roadbed widening splicing structure to move upward and rise during the lifting process.

[0012] Preferably, the other end of the lifting rod is fixedly connected with a lifting ring, and a lifting rod is movably penetrated into the lifting ring, the two lifting rods are connected through the lifting rod, the self-rotation deviation of the lifting rod is avoided, and the convex rod at one end of the lifting rod can be stably clamped in the inside of the lifting positioning groove.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that:

[0014] 1、In the utility model, the positioning pipe is inserted into the inside of the positioning hole by pushing the new roadbed widening splicing structure forward, and then the building material adhesive is filled into the inside of the splicing groove, the building material adhesive is evenly filled at the connecting position of the old roadbed and the new roadbed widening splicing structure, that is, the inside of the splicing groove, the old roadbed and the new roadbed widening splicing structure are stably connected together, and the stability of the highway roadbed widening splicing structure splicing is improved.

[0015] 2、In the utility model, the inside of the positioning pipe is preliminarily filled with a certain amount of building material adhesive through the injection pipeline passing through the filler hole, so that the positioning pipe and the positioning hole are stably connected, and the stability of the roadbed splicing position is further improved; in addition, the positioning rod is arranged in the inside of the positioning hole, the positioning rod can occupy the inside space of the positioning pipe, and when the positioning rod is located in the inside of the positioning pipe, the inside of the positioning pipe can be filled without needing too much building material adhesive, so that the time required for pouring the building material adhesive is shortened. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic diagram of the highway roadbed widening splicing structure is provided for the utility model;

[0017] Figure 2 A structure schematic diagram of the new roadbed widening splicing structure in the highway roadbed widening splicing structure is provided for the utility model;

[0018] Figure 3 A structure schematic diagram of the old roadbed in the highway roadbed widening splicing structure is provided for the utility model;

[0019] Figure 4 An inside structure schematic diagram of the new roadbed widening splicing structure in the highway roadbed widening splicing structure is provided for the utility model.

[0020] Legend: 1, old roadbed; 11, positioning hole; 111, positioning rod; 2, new roadbed widening splicing structure; 21, splicing groove; 22, positioning pipe; 221, filler hole; 23, lifting hole groove; 231, adjusting groove; 232, lifting positioning groove; 24, lifting rod; 241, convex rod; 242, lifting ring. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] See also Figure 1 - Figure 3 The utility model provides a technical solution: comprising an old roadbed 1, a plurality of positioning holes 11 are respectively opened on both sides of the old roadbed 1, a new roadbed widening splicing structure 2 is respectively set on both sides of the old roadbed 1, a splicing groove 21 is opened on one side of the new roadbed widening splicing structure 2, a plurality of positioning tubes 22 are fixedly connected in a linear arrangement inside the splicing groove 21, and the plurality of positioning tubes 22 are respectively movable through the interior of the positioning holes 11. When installing the highway roadbed widening splicing structure, the new roadbed widening splicing structure 2 is first placed on the On one side of the old roadbed 1, the positioning tube 22 of the new roadbed widening splicing structure 2 is then aligned with the positioning hole 11, and the new roadbed widening splicing structure 2 is pushed forward so that the positioning tube 22 extends into the interior of the positioning hole 11, and then the interior of the splicing groove 21 is filled with building material adhesive. The building material adhesive is evenly filled in the connection between the old roadbed 1 and the new roadbed widening splicing structure 2, that is, the interior of the splicing groove 21, stably connecting the old roadbed 1 and the new roadbed widening splicing structure 2 together, thereby improving the stability of the splicing of the highway roadbed widening splicing structure.

[0024] like Figure 2 As shown, a filling hole 221 is opened on one side of several positioning tubes 22. Before filling the building material adhesive into the splicing groove 21, a certain amount of building material adhesive can be preliminarily filled into the interior of the positioning tube 22 through the filling hole 221 through an injection pipe, so that the positioning tube 22 and the positioning hole 11 are stably connected, further improving the stability of the roadbed splicing.

[0025] like Figure 2 and Figure 3 As shown, a positioning rod 111 is fixedly connected to the interior of the positioning hole 11, and one end of the positioning rod 111 is arranged inside the positioning tube 22. By arranging the positioning rod 111 inside the positioning hole 11, the positioning rod 111 can occupy the internal space of the positioning tube 22. When the positioning rod 111 is located inside the positioning tube 22, the interior of the positioning tube 22 can be filled without pouring too much building material adhesive, thereby shortening the time required for pouring the building material adhesive.

[0026] like Figure 4As shown, lifting holes 23 are respectively provided at both ends of the new roadbed widening splicing structure 2, wherein the lifting holes 23 are used for clamping corresponding lifting equipment.

[0027] like Figure 4 As shown, an adjustment slot 231 is provided at the bottom end of the lifting hole slot 23, and a lifting positioning slot 232 is symmetrically provided on one side of the adjustment slot 231. The protruding rod 241 at one end of the lifting rod 24 enters the interior of the adjustment slot 231 through the lifting hole slot 23, and then rotates ninety degrees and is located below the lifting positioning slot 232. During the lifting process, the lifting rod 24 is lifted upward, and the protruding rod 241 is then clamped into the interior of the lifting positioning slot 232, completing the rotation clamping operation.

[0028] like Figure 4 As shown, the lifting hole groove 23 is movably connected to the lifting rod 24, and one end of the lifting rod 24 is symmetrically fixedly connected to the protruding rod 241, wherein the main function of the protruding rod 241 is to be connected to the inside of the lifting positioning groove 232, so that the lifting rod 24 can drive the new roadbed widening splicing structure 2 to move upward and rise accordingly during the lifting process.

[0029] like Figure 4 As shown, the other end of the lifting rod 24 is fixedly connected to a lifting ring 242, and a lifting rod is movable inside the lifting ring 242. The two lifting rods 24 are strung together through the lifting rod to prevent the lifting rod 24 from rotating and offsetting, and ensure that the protruding rod 241 at one end of the lifting rod 24 can be stably clamped inside the lifting positioning groove 232.

[0030] The method of use and working principle of this device: When transporting the new roadbed widening splicing structure 2, the protruding rod 241 at one end of the lifting rod 24 enters the interior of the adjustment groove 231 through the lifting hole groove 23, and then rotates ninety degrees to be located below the lifting positioning groove 232. During the lifting process, the lifting rod 24 is lifted upward, and the protruding rod 241 is then clamped into the interior of the lifting positioning groove 232. The lifting rod is passed through the lifting rings 242 on the two lifting rods 24, and the two lifting rods 24 are strung together. Then, with the help of the lifting device, the two new roadbed widening splicing structures 2 are lifted to the two sides of the old roadbed 1 respectively, and then the new roadbed 1 is lifted. The positioning tube 22 of the roadbed widening splicing structure 2 is aligned with the positioning hole 11, and the new roadbed widening splicing structure 2 is pushed forward so that the positioning tube 22 extends into the interior of the positioning hole 11. A certain amount of building material adhesive is initially filled into the interior of the positioning tube 22 through the filling hole 221 via an injection pipe, so that the positioning tube 22 and the positioning hole 11 are stably connected. Then, the building material adhesive is filled into the interior of the splicing groove 21. The building material adhesive is evenly filled in the connection between the old roadbed 1 and the new roadbed widening splicing structure 2, that is, the interior of the splicing groove 21, so that the old roadbed 1 and the new roadbed widening splicing structure 2 are stably connected together.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A highway roadbed widening and splicing structure, comprising an old roadbed (1), characterized in that: A plurality of positioning holes (11) are respectively opened on both sides of the old roadbed (1), a new roadbed widening splicing structure (2) is respectively provided on both sides of the old roadbed (1), a splicing groove (21) is opened on one side of the new roadbed widening splicing structure (2), a plurality of positioning tubes (22) are fixedly connected in a linear arrangement inside the splicing groove (21), and the plurality of positioning tubes (22) are movably inserted into the interior of the positioning holes (11).

2. The highway roadbed widening and splicing structure according to claim 1 is characterized in that: A filling hole (221) is provided on one side of the plurality of positioning tubes (22).

3. The highway roadbed widening and splicing structure according to claim 2 is characterized in that: A positioning rod (111) is fixedly connected to the interior of the positioning hole (11), and one end of the positioning rod (111) is arranged inside the positioning tube (22).

4. The highway roadbed widening and splicing structure according to claim 1 is characterized in that: Both ends of the new roadbed widening splicing structure (2) are respectively provided with lifting holes (23).

5. The highway roadbed widening and splicing structure according to claim 4 is characterized in that: An adjustment groove (231) is provided at the bottom end of the lifting hole groove (23), and a lifting positioning groove (232) is symmetrically provided on one side of the adjustment groove (231).

6. The highway roadbed widening and splicing structure according to claim 4, characterized in that: A lifting rod (24) is movably clamped inside the lifting hole groove (23), and one end of the lifting rod (24) is symmetrically fixedly connected to a protruding rod (241).

7. The highway roadbed widening and splicing structure according to claim 6, characterized in that: The other end of the lifting rod (24) is fixedly connected to a lifting ring (242), and the lifting rod is movably penetrated inside the lifting ring (242).

Citation Information

Patent Citations

  • Highway subgrade widening splicing structure

    CN220183721U