Road joint device

Abstract

The utility model provides a road joint device which comprises a vertical plate, a through hole is formed in the plate surface of the vertical plate, a supporting sleeve is arranged in the through hole, a detachable dowel bar is arranged in the supporting sleeve, and a sliding sleeve is arranged at one end of the dowel bar. The durability and the crack resistance of the road joint device are improved. The porous structure promotes water discharge and reduces accumulated water erosion, the filling groove and the water collecting pipe are introduced in the design, the sealing performance and the integrity are optimized, the dowel bar and the sliding sleeve enhance the mechanical stability and the adjustability, vehicle loads are effectively transmitted, joint staggering is reduced, the road flatness is improved, the service life is prolonged, and the maintenance cost is reduced. An efficient solution is provided for modern road construction, and the problem of slab staggering of the pavements on the two sides can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of road joints, in particular to a road joint device. Background Art

[0002] In modern road construction, pavement joint treatment is a key link to ensure the smoothness of the road and extend its service life. The road joint device is mainly used to fill the gaps between the pavements to prevent water penetration and debris embedding, thereby reducing pavement damage and extending the road maintenance cycle.

[0003] In order to solve these problems, this scheme adopts cement-based-fly ash porous lightweight concrete as the material of the vertical plate, which not only improves the durability and crack resistance of the device, but also promotes the effective discharge of water through its porous structure, reducing the erosion of the road structure by accumulated water. The design of the vertical plate introduces a filling groove and a water collecting pipe that can be filled with modified asphalt. This structural optimization enables the device to better adapt to environmental changes in actual applications, improve the sealing and integrity of road joints, and the application of force transmission rods and sliding sleeves increases the mechanical stability and adjustability of the device, enabling it to effectively transmit vehicle loads and reduce the problem of misalignment at the joints caused by vehicle driving. Utility Model Content

[0004] The main purpose of the utility model is to provide a road joint device, which can reduce the problem of misalignment of road surfaces on both sides.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a road joint device, including a vertical plate, a through hole is provided on the plate surface of the vertical plate, a supporting sleeve is provided in the through hole, a detachable force transmission rod is provided in the supporting sleeve, and a sliding sleeve is provided at one end of the force transmission rod.

[0006] In the preferred embodiment, the force transmission rod is made of glass fiber reinforced plastics, the outer side of the glass fiber reinforced plastics is coated with epoxy resin, and a water collecting pipe is also provided at the bottom of the vertical plate.

[0007] In the preferred embodiment, the material of the vertical plate is cement-based fly ash porous lightweight concrete, and the thickness of the vertical plate is 20-25 mm.

[0008] In a preferred embodiment, a filling groove is provided on the top of the vertical plate, and the filling groove is used to fill modified asphalt.

[0009] In a preferred embodiment, inner walls on both sides of the filling groove are provided with through-going long holes.

[0010] In the preferred embodiment, the sliding sleeve comprises a cylinder body, the cylinder body and the force transmission rod are arranged coaxially, and a nesting is provided between the cylinder body and the force transmission rod;

[0011] A flexible filler is arranged between the cylinder and the end surface of the force transmission rod.

[0012] In a preferred embodiment, the outer circumference of the cylinder is evenly distributed with interlocking pieces, and the interlocking pieces are used to increase the contact area with the post-casting section.

[0013] In a preferred embodiment, the flexible filler is yarn ends.

[0014] In a preferred embodiment, the water collecting pipe runs through the vertical plate, and a section of the water collecting pipe located in the vertical plate is provided with a water collection hole, and the water collection hole is used to collect water that penetrates into the vertical plate.

[0015] In the preferred embodiment, the water collecting pipe is also connected to the external drainage system.

[0016] The utility model provides a road joint device, which has the following beneficial effects: the scheme adopts cement-based fly ash porous lightweight concrete as the vertical plate material, which improves the durability and crack resistance of the road joint device. The porous structure promotes water discharge and reduces water erosion. The filling groove and water collecting pipe are introduced in the design to optimize the sealing and integrity. The force transmission rod and sliding sleeve enhance the mechanical stability and adjustability, effectively transmit vehicle load, reduce joint misalignment, improve road flatness and service life, reduce maintenance costs, and provide an efficient solution for modern road construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is an axonometric view of the joint device of the utility model;

[0019] Figure 2 It is a top view of the joint device of the utility model;

[0020] Figure 3 It is a cross-sectional view of the joint device of the utility model;

[0021] Figure 4 It is a partial cross-sectional view of the sliding sleeve of the utility model;

[0022] Figure 5 It is a partial cross-sectional view of the vertical plate of the utility model;

[0023] Figure 6 It is a schematic diagram of the utility model after the filling slot is filled;

[0024] In the figure: vertical plate 1; through hole 101; filling groove 102; long hole 103; support sleeve 104; water collecting pipe 105; water accumulation hole 106; force transmission rod 2; epoxy resin 201; fiberglass 202; sliding sleeve 3; cylinder 301; interlocking sheet 302; flexible filler 303; nesting 304; drainage system 4; post-casting section 5; front-casting section 6; modified asphalt 7. DETAILED DESCRIPTION

[0025] Example 1

[0026] like Figure 1-6 As shown, a road joint device includes a vertical plate 1, a through hole 101 is provided on the plate surface of the vertical plate 1, a supporting sleeve 104 is provided in the through hole 101, a detachable force transmission rod 2 is provided in the supporting sleeve 104, and a sliding sleeve 3 is provided at one end of the force transmission rod 2.

[0027] In the preferred embodiment, the force transmission rod 2 is made of fiberglass 202, the outer side of the fiberglass 202 is coated with epoxy resin 201, and a water collecting pipe 105 is also provided at the bottom of the vertical plate 1. The composite material composed of fiberglass 202 and epoxy resin 201 has high strength, good corrosion resistance, excellent waterproof performance, and good adhesion, which improves the service life of the force transmission rod.

[0028] In the preferred embodiment, the material of the vertical plate 1 is cement-based fly ash porous lightweight concrete, and the thickness of the vertical plate 1 is 20-25 mm. The cement-based fly ash porous lightweight concrete has good durability and seismic resistance. Its porosity can transport the absorbed rainwater to the water collection pipe 105 through the water accumulation holes 106 below and discharge it outside the road.

[0029] In a preferred embodiment, a filling groove 102 is provided on the top of the vertical plate 1, and the filling groove 102 is used to fill modified asphalt.

[0030] In a preferred embodiment, inner walls on both sides of the filling groove 102 are provided with through-going long holes 103 .

[0031] In the preferred embodiment, the sliding sleeve 3 includes a cylinder 301, the cylinder 301 and the force transmission rod 2 are arranged coaxially, and a nest 304 is provided between the cylinder 301 and the force transmission rod 2;

[0032] A flexible filler 303 is provided between the cylinder 301 and the end surface of the force transmission rod 2 .

[0033] In the preferred embodiment, the outer circle of the cylinder 301 is evenly distributed with the mosaic pieces 302, which are used to increase the contact area with the post-casting section 5. The mosaic pieces 302 increase the contact area to make the cylinder 301 and the post-casting section 5 more firmly combined and reduce the risk of loosening.

[0034] In a preferred embodiment, the flexible filler 303 is a yarn end, which plays a buffering role.

[0035] In a preferred embodiment, the water collecting pipe 105 passes through the vertical plate 1 , and a section of the water collecting pipe 105 located in the vertical plate 1 is provided with a water collection hole 106 , and the water collection hole 106 is used to collect water that penetrates into the vertical plate 1 .

[0036] In a preferred embodiment, the water collecting pipe 105 is also connected to the external drainage system 4.

[0037] A specific method of using a road joint device is as follows: a normal formwork for road pouring is set up, and the joint device is placed between the front pouring section 5 and the rear pouring section 6. The water collecting pipe 105 at the bottom of the vertical plate 1 can provide support without adding additional support. The support sleeve 104 can also position the force transmission rod 2 at a suitable height, and the water collecting pipe 105 is connected to the external drainage system 4;

[0038] The roads on both sides of the joint device are poured directly. After the road pouring is completed, the concrete in the filling groove 102 is chiseled out. In traditional construction, the upper part of the vertical plate 1 needs to be chiseled out, but there is no obvious dividing line from the upper part of the vertical plate 1 to the road surface. Therefore, in many cases, the chiseled part is not flat, and there are different amounts of filling materials when pouring, which requires repeated manual inspection;

[0039] There is an obvious dividing line from the bottom to the top of the filling groove 102, which is also very convenient for horizontal chiseling from one side to the other, thereby improving the chiseling efficiency. After the chiseling is completed, the modified asphalt is directly filled in the filling groove 102. The asphalt can be in good contact with the road through the long hole 103, thus avoiding the asphalt from being formed alone and easily falling off.

[0040] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A road joint device, characterized in that: The vertical plate (1) comprises a through hole (101) provided on a plate surface of the vertical plate (1), a support sleeve (104) provided in the through hole (101), a detachable force transmission rod (2) provided in the support sleeve (104), and a sliding sleeve (3) provided at one end of the force transmission rod (2).

2. A road joint device according to claim 1, characterized in that: The material of the force transmission rod (2) is glass fiber reinforced plastic (202), the outer side of the glass fiber reinforced plastic (202) is coated with epoxy resin (201), and a water collecting pipe (105) is also provided at the bottom of the vertical plate (1).

3. A road joint device according to claim 1, characterized in that: The material of the vertical plate (1) is cement-based fly ash porous lightweight concrete, and the thickness of the vertical plate (1) is 20-25 mm.

4. A road joint device according to claim 2, characterized in that: A filling groove (102) is provided on the top of the vertical plate (1), and the filling groove (102) is used to fill modified asphalt.

5. A road joint device according to claim 3, characterized in that: The inner walls on both sides of the filling groove (102) are provided with through-going long holes (103).

6. A road joint device according to claim 1, characterized in that: The sliding sleeve (3) comprises a cylinder (301), the cylinder (301) and the force transmission rod (2) are coaxially arranged, and a nesting (304) is provided between the cylinder (301) and the force transmission rod (2); A flexible filler (303) is provided between the cylinder (301) and the end surface of the force transmission rod (2).

7. A road joint device according to claim 1, characterized in that: The outer circumference of the cylinder (301) is evenly distributed with embedded pieces (302), and the embedded pieces (302) are used to increase the contact area with the post-casting section (5).

8. A road joint device according to claim 6, characterized in that: The flexible filler (303) is a yarn end.

9. A road joint device according to claim 1, characterized in that: The water collecting pipe (105) passes through the vertical plate (1), and a section of the water collecting pipe (105) located in the vertical plate (1) is provided with a water collection hole (106), and the water collection hole (106) is used to collect water that penetrates into the vertical plate (1).

10. A road joint device according to claim 9, characterized in that: The water collecting pipe (105) is also connected to the external drainage system (4).

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