Roadbed widening splicing structure

Abstract

The utility model belongs to the technical field of roadbed construction, and particularly relates to a roadbed widening splicing structure which comprises an old pavement and a supporting device, the supporting device is arranged on the surface of the old pavement and comprises two supporting frames, the two supporting frames are located on the two sides of the old pavement respectively, and a plurality of positioning rods are inserted into the two supporting frames and the inner wall of the old pavement. The surface of the positioning rod is in threaded connection with a plurality of threaded cylinders, the threaded cylinders are located on the surface of the supporting frame, a plurality of reinforcing devices are arranged on the surface of the supporting frame and comprise reinforcing rods, the reinforcing rods are inserted into the inner wall of the supporting frame, and storage blocks are fixedly connected to the positions, close to the two sides of the reinforcing rods, of the surface of the supporting frame; the inner wall of the reinforcing rod is slidably connected with two insertion blocks. By arranging the supporting frame, the positioning rod and the fixing frame, the stability of the new pavement after pouring can be improved, meanwhile, the positioning rod can improve the transverse supporting capacity, and therefore the situation that the connecting position of the old pavement and the new pavement is not tight enough is reduced.

Description

Technical Field

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

[0002] The roadbed is the foundation of the track or road surface, and is a geotechnical structure formed by excavation or filling. The main function of the roadbed is to provide the necessary conditions for track or road surface laying and train or vehicle operation, and to bear the static and dynamic loads of the track and locomotive vehicles or road surface and traffic loads, while transferring and diffusing the loads deep into the foundation.

[0003] A Chinese patent application CN219195518U discloses a widened spliced ​​roadbed structure, the key points of its technical solution are: the trapezoidal structure connecting the old roadbed and the new roadbed in the new roadbed is at the bottom of the new roadbed, which can play an auxiliary supporting role for the new roadbed and make the connection between the old roadbed and the new roadbed tighter; the structural setting of the connecting reinforcement ribs and the steel mesh can make the connection between the old roadbed and the new roadbed tighter, and effectively prevent cracking between the old roadbed and the new roadbed; the structural design of the longitudinal reinforcement ribs, transverse reinforcement ribs, fixed cones and triangular support beams enables the triangular support beams to cooperate with the old roadbed to play a gathering and supporting effect on the new roadbed.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: when traffic pressure increases, the old road surface needs to be widened. When widening, the traditional new road surface is mostly connected in a stepped structure during pouring. Since this method is mostly vertically supported, it lacks lateral support in actual use, which will lead to insufficient stability and insufficient tightness of the connection. Therefore, a roadbed widening and splicing structure is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a roadbed widening and splicing structure described in the utility model includes an old road surface and a supporting device, the surface of the old road surface is provided with a supporting device, the supporting device includes two supporting frames, the two supporting frames are respectively located on both sides of the old road surface, a plurality of positioning rods are inserted into the inner wall of the two supporting frames and the old road surface, the surface of the positioning rods is threadedly connected with a plurality of threaded cylinders, the threaded cylinders are located on the surface of the supporting frames, the surfaces of the positioning rods close to the two sides of the old road surface are threadedly connected with limiting cylinders, when the threaded cylinders are used, the threaded cylinders are squeezed on the surface of the supporting frames, and then the new road surface is poured, and the new road surface can be supported by arranging the supporting frames, the positioning rods, the threaded cylinders and the limiting cylinders.

[0007] Preferably, a plurality of support rods are fixedly connected to the bottom end of the support frame, and a socket is provided on the surface of the old road surface near the positioning rod. The positioning rod is inserted into the inner wall of the socket of the old road surface. The setting of the positioning rod can assist in supporting the support frame to a certain extent.

[0008] Preferably, a storage hole is opened on the surface of the support frame near the positioning rod, and the positioning rod is inserted into the inner wall of the storage hole of the support frame. When the positioning rod moves, the positioning rod is inserted into the inner wall of the storage hole. The opening of the storage hole can facilitate the support frame to store the positioning rod.

[0009] Preferably, two fixing brackets are inserted into the inner wall of the old road surface, and a plurality of limiting holes are opened on the surface of the old road surface near the fixing brackets. The fixing brackets are inserted into the inner walls of the limiting holes of the old road surface, and the positioning rods are inserted into the inner walls of the fixing brackets. The setting of the fixing brackets can support the positioning rods to a certain extent.

[0010] Preferably, the surface of the support frame is provided with a plurality of reinforcing devices, the reinforcing devices include a reinforcing rod, the reinforcing rod is inserted into the inner wall of the support frame, the surface of the support frame close to both sides of the reinforcing rod is fixedly connected with storage blocks, the inner wall of the reinforcing rod is slidably connected with two plug-in blocks, the plug-in blocks are inserted into the inner wall of the storage block, the plug-in blocks are pushed to slide on the inner wall of the reinforcing rod, and the plug-in blocks are inserted into the inner wall of the storage block. The provision of the reinforcing rod can increase the stability of the support frame.

[0011] Preferably, one end of the two plug blocks close to each other is fixedly connected with a spring, and a sealing block is inserted into the inner wall of the reinforcing rod. After the reinforcing rod is installed, the sealing block is inserted into the inner wall of the reinforcing rod. The provision of the sealing block can reduce the possibility of material flowing into the reinforcing rod.

[0012] The utility model is beneficial in that:

[0013] 1. When the utility model is used to cast a new road surface, the fixing frame is inserted into the inner wall of the limiting hole of the old road surface, and then the positioning rod is inserted into the inner wall of the insertion hole of the old road surface, and at the same time, the positioning rod is inserted into the inner wall of the fixing frame, and then the limiting cylinder is rotated to allow the limiting cylinder to rotate to the surface of the old road surface, and then the support frame is pushed to allow the support frame to drive the support rod to move, and the support rod is inserted into the ground, and then the threaded cylinder is rotated to the surface of the positioning rod, and then the positioning rod is inserted into the inner wall of the storage hole of the support frame, and then the subsequent remaining threaded cylinder is rotated to the surface of the positioning rod, so that the threaded cylinder is pressed against the surface of the support frame. After the support frame is installed, the material is poured on the surface of the entire support device. By arranging the support frame, the positioning rod and the fixing frame, the stability of the new road surface after casting can be increased, and the positioning rod can increase the lateral support capacity, thereby reducing the situation where the connection between the old road surface and the new road surface is not tight enough.

[0014] 2. When the support frame is installed, the utility model inserts the rod body of the reinforcing rod into the inner wall of the support frame, and then welds the plug-in block storage part at the upper end of the reinforcing rod to the surface of the reinforcing rod. When assembling the reinforcing rod, push the plug-in block to make it slide on the inner wall of the reinforcing rod, and the plug-in block drives the spring to contract. After the reinforcing rod is spliced, release the plug-in block and the spring will rebound. The spring drives the plug-in block to slide, and the plug-in block is inserted into the inner wall of the storage block. Then the sealing block is inserted into the inner wall of the reinforcing rod. By setting the reinforcing rod, the stability of the support frame can be increased, and the possibility of the support frame falling off can also be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of an old road surface in a roadbed widening and splicing structure;

[0017] Figure 2 For a roadbed widening splicing structure Figure 1 A schematic diagram of the structure at A;

[0018] Figure 3 It is a side view structural schematic diagram of an old road surface in a roadbed widening and splicing structure;

[0019] Figure 4 For a roadbed widening splicing structure Figure 3 Schematic diagram of the structure at point B.

[0020] In the figure: 1. old road surface; 2. supporting device; 21. supporting frame; 22. positioning rod; 23. threaded cylinder; 24. limiting cylinder; 25. supporting rod; 26. plug hole; 27. fixing frame; 28. storage hole; 29. ​​limiting hole; 3. reinforcing device; 31. reinforcing rod; 32. storage block; 33. plug block; 34. spring; 35. sealing block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4As shown, a roadbed widening and splicing structure includes an old road surface 1 and a supporting device 2. The surface of the old road surface 1 is provided with a supporting device 2, and the supporting device 2 includes two supporting frames 21. The two supporting frames 21 are respectively located on both sides of the old road surface 1. A plurality of positioning rods 22 are inserted into the inner wall of the two supporting frames 21 and the old road surface 1. The surface of the positioning rod 22 is threadedly connected with a plurality of threaded cylinders 23. The threaded cylinders 23 are located on the surface of the supporting frame 21. The surface of the positioning rod 22 near the two sides of the old road surface 1 is threadedly connected with a limiting cylinder 24. When working, The positioning rod 22 is inserted into the interior of the old road surface 1, and then the limiting cylinder 24 is rotated to the surface of the positioning rod 22. The limiting cylinder 24 is squeezed on the side wall of the old road surface 1, and then part of the threaded cylinder 23 is rotated to the surface of the positioning rod 22, and then the support frame 21 is sleeved on the surface of the positioning rod 22, and then the subsequent threaded cylinder 23 is rotated to the surface of the positioning rod 22. When using the threaded cylinder 23, let the threaded cylinder 23 be squeezed on the surface of the support frame 21, and then the new road surface is poured. By setting the support frame 21, positioning rod 22, threaded cylinder 23 and limiting cylinder 24, the new road surface can be supported.

[0023] A plurality of support rods 25 are fixedly connected to the bottom end of the support frame 21, and a socket 26 is provided on the surface of the old road surface 1 near the positioning rod 22, and the positioning rod 22 is inserted into the inner wall of the socket 26 of the old road surface 1; when working, the casting material is allowed to submerge the support rod 25, and when the positioning rod 22 moves, the positioning rod 22 will be inserted into the inner wall of the socket 26. The setting of the positioning rod 22 can assist in supporting the support frame 21 to a certain extent.

[0024] A storage hole 28 is provided on the surface of the support frame 21 near the positioning rod 22, and the positioning rod 22 is inserted into the inner wall of the storage hole 28 of the support frame 21; when working, the positioning rod 22 is inserted into the inner wall of the storage hole 28, and the opening of the storage hole 28 can facilitate the support frame 21 to store the positioning rod 22.

[0025] Two fixing frames 27 are inserted into the inner wall of the old road surface 1, and a plurality of limiting holes 29 are opened on the surface of the old road surface 1 near the fixing frames 27. The fixing frames 27 are inserted into the inner walls of the limiting holes 29 of the old road surface 1. When working, the fixing frames 27 are inserted into the inner walls of the limiting holes 29 of the old road surface 1, and then the positioning rod 22 is inserted into the inner wall of the fixing frames 27. The setting of the fixing frames 27 can support the positioning rod 22 to a certain extent.

[0026] The surface of the support frame 21 is provided with multiple reinforcement devices 3, and the reinforcement devices 3 include reinforcement rods 31, and the reinforcement rods 31 are inserted into the inner wall of the support frame 21. The positions on the surface of the support frame 21 near both sides of the reinforcement rods 31 are fixedly connected with storage blocks 32, and the inner wall of the reinforcement rods 31 is slidably connected with two plug blocks 33, and the plug blocks 33 are inserted into the inner wall of the storage blocks 32; when working, the reinforcement rods 31 are inserted into the inner wall of the support frame 21, and then the plug blocks 33 are pushed to make the plug blocks 33 slide on the inner wall of the reinforcement rods 31, and the plug blocks 33 are inserted into the inner wall of the storage blocks 32. The setting of the reinforcement rods 31 can increase the stability of the support frame 21.

[0027] The ends of the two plug blocks 33 that are close to each other are fixedly connected with a spring 34, and a sealing block 35 is inserted into the inner wall of the reinforcing rod 31; when working, the plug block 33 is pushed to allow the plug block 33 to drive the spring 34 to contract. After the reinforcing rod 31 moves to a suitable position, the plug block 33 is released and the spring 34 will rebound. The spring 34 drives the plug block 33 to slide. After the reinforcing rod 31 is installed, the sealing block 35 is inserted into the inner wall of the reinforcing rod 31. The setting of the sealing block 35 can reduce the possibility of material flowing into the reinforcing rod 31.

[0028] Working principle: when pouring a new road surface, the fixing frame 27 is inserted into the inner wall of the limiting hole 29 of the old road surface 1, and then the positioning rod 22 is inserted into the inner wall of the insertion hole 26 of the old road surface 1, and the positioning rod 22 is inserted into the inner wall of the fixing frame 27, and then the limiting cylinder 24 is rotated to allow the limiting cylinder 24 to rotate to the surface of the old road surface 1, and then the support frame 21 is pushed to allow the support frame 21 to drive the support rod 25 to move, and the support rod 25 is inserted into the ground, and then the threaded cylinder 23 is rotated to the surface of the positioning rod 22, and then the positioning rod 22 is inserted into the inner wall of the storage hole 28 of the support frame 21, and then the subsequent remaining threaded cylinders 23 are rotated to the surface of the positioning rod 22, so that the threaded cylinder 23 is against the surface of the support frame 21. After the support frame 21 is installed, the material is poured on the surface of the entire support device 2. By setting the support frame 21, the positioning rod 22 and the fixing frame 27, it is possible to increase The stability of the new road surface after pouring is completed. At the same time, the positioning rod 22 can increase the lateral support capacity, thereby reducing the situation where the connection between the old road surface 1 and the new road surface is not tight enough; when installing the support frame 21, the rod body of the reinforcing rod 31 is inserted into the inner wall of the support frame 21, and then the storage part of the plug block 33 at the upper end of the reinforcing rod 31 is welded to the surface of the reinforcing rod 31. When assembling the reinforcing rod 31, the plug block 33 is pushed to slide on the inner wall of the reinforcing rod 31, and the plug block 33 drives the spring 34 to contract. After the reinforcing rod 31 is spliced, the plug block 33 is released and the spring 34 will rebound. The spring 34 drives the plug block 33 to slide, and the plug block 33 is inserted into the inner wall of the storage block 32, and then the sealing block 35 is inserted into the inner wall of the reinforcing rod 31. By setting the reinforcing rod 31, the stability of the support frame 21 can be increased, and the situation of the support frame 21 falling off can also be reduced.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A roadbed widening and splicing structure, comprising an old road surface (1) and a supporting device (2), characterized in that: The surface of the old road surface (1) is provided with a support device (2), the support device (2) comprising two support frames (21), the two support frames (21) being respectively located on both sides of the old road surface (1), a plurality of positioning rods (22) being inserted into the inner wall of the two support frames (21) and the old road surface (1), the surface of the positioning rod (22) being threadedly connected with a plurality of threaded cylinders (23), the threaded cylinders (23) being located on the surface of the support frame (21), and the surface of the positioning rod (22) being threadedly connected with limiting cylinders (24) at positions close to both sides of the old road surface (1).

2. A roadbed widening and splicing structure according to claim 1, characterized in that: A plurality of support rods (25) are fixedly connected to the bottom end of the support frame (21); a plug hole (26) is provided on the surface of the old road surface (1) near the positioning rod (22); and the positioning rod (22) is inserted into the inner wall of the plug hole (26) of the old road surface (1).

3. A roadbed widening and splicing structure according to claim 2, characterized in that: A storage hole (28) is provided on the surface of the support frame (21) at a position close to the positioning rod (22), and the positioning rod (22) is inserted into the inner wall of the storage hole (28) of the support frame (21).

4. A roadbed widening and splicing structure according to claim 3, characterized in that: Two fixing frames (27) are inserted into the inner wall of the old road surface (1), a plurality of limiting holes (29) are opened on the surface of the old road surface (1) near the fixing frames (27), and the fixing frames (27) are inserted into the inner walls of the limiting holes (29) of the old road surface (1).

5. The roadbed widening and splicing structure according to claim 1 is characterized in that: The surface of the support frame (21) is provided with a plurality of reinforcing devices (3), the reinforcing devices (3) comprising reinforcing rods (31), the reinforcing rods (31) being inserted into the inner wall of the support frame (21), the surface of the support frame (21) being close to both sides of the reinforcing rods (31) and being fixedly connected with storage blocks (32), the inner wall of the reinforcing rods (31) being slidably connected with two insertion blocks (33), the insertion blocks (33) being inserted into the inner wall of the storage blocks (32).

6. A roadbed widening and splicing structure according to claim 5, characterized in that: A spring (34) is fixedly connected to one end of the two inserting blocks (33) that is close to each other, and a sealing block (35) is inserted into the inner wall of the reinforcing rod (31).

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