Splicing structure for reconstructed and expanded new and old roadbed

Abstract

The utility model relates to the technical field of roadbed construction, in particular to a splicing structure for reorganization and expansion of new and old roadbeds, which comprises an old roadbed and a new roadbed, the contact surfaces of the old roadbed and the new roadbed are stair-shaped, pavements are paved on the surfaces of the old roadbed and the new roadbed, connecting holes are formed in the surface of the old roadbed, and the connecting holes are communicated with the old roadbed and the new roadbed. A first screw rod is inserted into the inner side of the connecting hole, an anchor rod is movably connected to the surface of the first screw rod, an abutting plate is fixedly connected to the bottom end of the anchor rod, and a screw sleeve is fixedly connected to the end, away from the anchor rod, of the abutting plate. Through connection of the first screw rod and the screw sleeve and rotation of the first screw rod, the effect of regulating and controlling the action angle of the abutting plate is achieved, the stability and fastening performance of the installation position of the anchor rod on an old roadbed are improved, and under the embedded connection of the anchor rod and a new roadbed, the contact stability performance and the firmness effect between the old roadbed and the new roadbed are improved through the action of the anchor rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to roadbed construction technical field, concretely is a kind of improved extension new and old roadbed splicing structure. BACKGROUND

[0002] In road construction, there will be differences between newly repaired road and previous road, to avoid the occurrence of subsidence fault between roadbeds, old road embankment step excavation, geosynthetic material reinforced cushion and reinforced embankment, geotextile seepage prevention and drainage and other engineering technical measures are used in construction process, but this processing method causes the connection between new and old roadbeds not close, easily causes fault, affects service life. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a kind of improved extension new and old roadbed splicing structure, to solve the problem of causing the connection between new and old roadbeds not close, easily causing fault, affecting service life in the above background art.

[0004] To achieve the above object, the utility model provides the following technical scheme, a kind of improved extension new and old roadbed splicing structure, including old roadbed and new roadbed, the surface of old roadbed and new roadbed contact is all stair shape, the surface of old roadbed and new roadbed is paved with road surface, the surface of old roadbed is provided with connecting hole, the inside of connecting hole is inserted with first screw rod, the surface of first screw rod is movably connected with anchor rod, the bottom of anchor rod is fixedly connected with abutment plate, the end of abutment plate away from anchor rod is fixedly connected with screw sleeve, the surface of first screw rod is fixedly connected with second screw rod, the outer surface of second screw rod is fixedly connected with positioning plate, the end of second screw rod away from first screw rod is fixedly connected with rotary head, the inside of anchor rod is provided with control groove, the inside of control groove is provided with through groove, and the inside of through groove is movably connected with reinforcing plate, the surface of reinforcing plate is fixedly connected with control block, the outer surface of second screw rod is sleeved with connecting sleeve by thread, and the surface of connecting sleeve is fixedly connected with abutment sleeve.

[0005] Preferably, the anchor rods are uniformly connected at the connection between the old roadbed and the new roadbed, the anchor rods are inserted with the old roadbed through the first screw rods and the connecting holes, and the anchor rods are embeddedly connected with the new roadbed.

[0006] Preferably, the abutment plates are slidably connected with the first screw rods through the screw sleeves, the outer surfaces of the abutment plates are in contact with the connecting holes, and the abutment plates are evenly distributed on the outer surfaces of the screw sleeves in four groups.

[0007] Preferably, the first screw rods are rotatably connected with the anchor rods through the second screw rods, the rotary heads are embedded on the surfaces of the anchor rods, the positioning plates are disc-shaped, and the positioning plates are embeddedly rotated in the interiors of the anchor rods.

[0008] Preferably, the reinforcing plates are evenly distributed in four groups on the outer surface of the anchor rod, and the outer surface of the reinforcing plate is fixedly connected with a protruding block.

[0009] Preferably, the abutting sleeve is slidably connected with the connecting sleeve and the second screw rod, the abutting sleeve is slidably connected with the control groove, and the outer surface of the end of the abutting sleeve away from the connecting sleeve is inclined.

[0010] Preferably, the surface of the control block away from the reinforcing plate is in the shape of a circular arc, and the control block is in abutting contact with the outer surface of the abutting sleeve through the reinforcing plate.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The first screw rod is controlled to rotate through the connection of the anchor rod and the first screw rod, the connection of the second screw rod and the first screw rod, and the connection of the second screw rod and the rotating head, the action angle of the abutting plate is adjusted through the connection of the first screw rod and the screw sleeve, the stability and fastening performance of the anchor rod in the installation position of the old roadbed are improved, and the contact stability and firmness between the old roadbed and the new roadbed are improved through the embedding connection of the anchor rod and the new roadbed.

[0013] 2. The action angle of the reinforcing plate on the anchor rod is changed through the rotating connection of the second screw rod and the connecting sleeve, the abutting contact of the abutting sleeve and the control block through the connection of the connecting sleeve and the abutting sleeve, and the friction and stability of the anchor rod and the new roadbed are improved through the action of the reinforcing plate and the surface protruding block, thereby improving the effect and performance of the anchor rod. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural front view schematic diagram of the utility model;

[0015] Figure 2 It is a structural front view schematic diagram of the utility model;

[0016] Figure 3 It is a structural front view schematic diagram of the utility model;

[0017] Figure 4 It is a structural front view schematic diagram of the utility model;

[0018] Figure 5 It is a structural front view schematic diagram of the utility model;

[0019] In the drawing: 1, old roadbed; 2, new roadbed; 3, road surface; 4, anchor rod; 41, first screw rod; 42, connecting hole; 43, abutting plate; 44, screw sleeve; 45, second screw rod; 46, positioning plate; 47, rotating head; 5, reinforcing plate; 51, connecting sleeve; 52, abutting sleeve; 53, control block; 54, control groove. Detailed Implementation

[0020] Please see Figures 1-5 One embodiment provided by this utility model:

[0021] A reconstructed and expanded roadbed splicing structure includes an old roadbed 1 and a new roadbed 2. The contact surfaces of the old roadbed 1 and the new roadbed 2 are both stair-shaped. A road surface 3 is paved on the surfaces of the old roadbed 1 and the new roadbed 2. A connecting hole 42 is formed on the surface of the old roadbed 1. A first screw 41 is inserted into the inner side of the connecting hole 42. An anchor 4 is movably connected to the surface of the first screw 41. A stop plate 43 is fixedly connected to the bottom end of the anchor 4. A threaded sleeve 44 is fixedly connected to the end of the stop plate 43 away from the anchor 4. A second screw 45 is fixedly connected to the surface of the first screw 41. A positioning plate 46 is fixedly connected to the outer surface of the second screw 45. The second screw 45 is located away from the first screw 41. One end of a screw 41 is fixedly connected to a rotating head 47. The inside of the anchor rod 4 is provided with a control groove 54. A through groove is provided on the inner side of the control groove 54, and a reinforcing plate 5 is movably connected to the inner side of the through groove. A control block 53 is fixedly connected to the surface of the reinforcing plate 5. A connecting sleeve 51 is threaded onto the outer surface of the second screw 45. A bushing 52 is fixedly connected to the surface of the connecting sleeve 51. Through the connection of the old roadbed 1 and the connecting hole 42, and under the connection of the first screw 41 and the screw sleeve 44, the connection of the screw sleeve 44 and the bushing 43 achieves the effect of adjusting the angle of action of the bushing 43, so as to achieve the tight and firm installation position of the anchor rod 4 on the old roadbed 1.

[0022] Furthermore, the anchor bolts 4 are evenly connected at the junction of the old roadbed 1 and the new roadbed 2. The anchor bolts 4 are inserted into the old roadbed 1 through the first screw 41 and the connecting hole 42. The anchor bolts 4 and the new roadbed 2 are fitted together. Through the connection of the anchor bolts 4 and the first screw 41, and the insertion of the first screw 41 and the connecting hole 42, the anchor bolts 4 are positioned on the old roadbed 1 to provide a fixed support effect.

[0023] Furthermore, the abutment plate 43 is slidably connected to the first screw 41 via the screw sleeve 44. The outer surface of the abutment plate 43 abuts against the connecting hole 42. The abutment plates 43 are evenly distributed in four groups on the outer surface of the screw sleeve 44. Through the connection between the first screw 41 and the screw sleeve 44, the first screw 41 is rotated under the connection between the screw sleeve 44 and the abutment plate 43, changing the position of the screw sleeve 44 on the first screw 41, thereby changing the angle of action of the abutment plate 43 during use, so that the abutment plate 43 and the connecting hole 42 are tightly abutted.

[0024] Further, the first screw rod 41 is rotatably connected with the anchor rod 4 through the second screw rod 45 and the anchor rod 4, the rotating head 47 is embedded on the surface of the anchor rod 4, the positioning plate 46 is in the shape of a disc, the positioning plate 46 is rotatably embedded in the anchor rod 4, through the connection of the first screw rod 41 and the second screw rod 45, and the connection of the second screw rod 45 and the positioning plate 46, the positioning plate 46 and the anchor rod 4 are rotatably embedded, so that the rotating positions of the second screw rod 45 and the first screw rod 41 on the anchor rod 4 are limited and supported.

[0025] Further, the reinforcing plate 5 is evenly distributed in four groups on the outer surface of the anchor rod 4, the outer surface of the reinforcing plate 5 is fixedly connected with the protrusions, through the action of the reinforcing plate 5, under the action of the protrusions on the outer surface of the reinforcing plate 5, the stability of the contact between the anchor rod 4 and the new roadbed 2 is improved.

[0026] Further, the abutting sleeve 52 is slidably connected with the connecting sleeve 51 and the second screw rod 45, the abutting sleeve 52 is slidably connected with the control groove 54, the outer surface of the end of the abutting sleeve 52 away from the connecting sleeve 51 is in an inclined shape, through the connection of the connecting sleeve 51 and the second screw rod 45, and the connection of the connecting sleeve 51 and the abutting sleeve 52, the action position of the abutting sleeve 52 in the control groove 54 is realized.

[0027] Further, the surface of the control block 53 away from the reinforcing plate 5 is in the shape of a circular arc, the control block 53 is in abutting contact with the outer surface of the abutting sleeve 52 through the reinforcing plate 5, under the change of the position of the abutting sleeve 52, the abutting contact between the abutting sleeve 52 and the control block 53 changes the action angle of the reinforcing plate 5, under the action of the reinforcing plate 5, the stability of the use of the anchor rod 4 in the new roadbed 2 is improved.

[0028] Working principle: when the new and old roadbeds are spliced, first, a stair-shaped platform is dug on the old roadbed 1, then the new roadbed 2 is laid, when the new roadbed 2 is laid, a connecting hole 42 is drilled on the stair-shaped platform of the old roadbed 1, then the first screw rod 41 is inserted into the connecting hole 42, at this time, the rotating head 47 is rotated, the second screw rod 45 and the first screw rod 41 are rotated, under the connection of the abutting plate 43 and the screw sleeve 44, and the connection of the first screw rod 41 and the screw sleeve 44, the action angle of the abutting plate 43 is changed, the abutting plate 43 and the connecting hole 42 are tightly abutted, when the rotating head 47 is rotated, the position of the connecting sleeve 51 and the abutting sleeve 52 in the control groove 54 is changed, at this time, the abutting sleeve 52 and the control block 53 are in abutting contact, the connection angle of the reinforcing plate 5 on the anchor rod 4 is changed, the stability of the abutting connection of the anchor rod 4 and the new roadbed 2 is improved, after the laying of the new roadbed 2 is completed, the pavement 3 is laid on the new roadbed 2 and the old roadbed 1, the splicing operation of the new and old roadbeds is completed.

Claims

1. A structure for splicing old and new roadbeds in reconstruction and expansion, comprising an old roadbed and a new roadbed, characterized in that: The surface of the old roadbed and the new roadbed is in a stair shape, the surface of the old roadbed and the new roadbed is paved with a road surface, the surface of the old roadbed is provided with a connecting hole, the inner side of the connecting hole is inserted with a first screw rod, the surface of the first screw rod is movably connected with an anchor rod, the bottom end of the anchor rod is fixedly connected with an abutment plate, the end, away from the anchor rod, of the abutment plate is fixedly connected with a screw sleeve, the surface of the first screw rod is fixedly connected with a second screw rod, the outer surface of the second screw rod is fixedly connected with a positioning plate, the end, away from the first screw rod, of the second screw rod is fixedly connected with a rotating head, the inside of the anchor rod is provided with a control groove, the inner side of the control groove is provided with a through groove, and the inner side of the through groove is movably connected with a reinforcing plate, the surface of the reinforcing plate is fixedly connected with a control block, the outer surface of the second screw rod is sleeved with a connecting sleeve in a threaded manner, and the surface of the connecting sleeve is fixedly connected with an abutting sleeve.

2. The improved and expanded new and old roadbed splicing structure according to claim 1, characterized in that: The anchor rod is uniformly connected at the connecting position of the old roadbed and the new roadbed, the anchor rod is inserted with the old roadbed through the first screw rod and the connecting hole, and the anchor rod and the new roadbed are embeddedly connected.

3. The improved and expanded new and old roadbed splicing structure according to claim 1, characterized in that: The abutment plate is slidably connected through the screw sleeve and the first screw rod, the outer surface of the abutment plate is in abutting contact with the connecting hole, and the abutment plate is in four groups and is uniformly distributed on the outer surface of the screw sleeve.

4. The reconstruction and extension of new and old roadbed splicing structure according to claim 1, characterized in that: The first screw rod is rotatably connected through the second screw rod and the anchor rod, the rotating head is embedded on the surface of the anchor rod, the positioning plate is in a disc shape, and the positioning plate is embeddedly rotated in the inside of the anchor rod.

5. The reconstruction and extension of new and old roadbed splicing structure according to claim 1, characterized in that: The reinforcing plate is in four groups and is uniformly distributed on the outer surface of the anchor rod, and the outer surface of the reinforcing plate is fixedly connected with a protruding block.

6. The reconstruction and extension of new and old roadbed splicing structure according to claim 1, characterized in that: The abutting sleeve is slidably connected through the connecting sleeve and the second screw rod, the abutting sleeve is slidably connected with the control groove, and the end, away from the connecting sleeve, of the abutting sleeve is in an inclined shape.

7. The reconstruction and extension of new and old roadbed splicing structure according to claim 1, characterized in that: The surface, away from the reinforcing plate, of the control block is in a circular arc shape, and the control block is in abutting contact with the outer surface of the abutting sleeve through the reinforcing plate.

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