Road joint structure for road
By using a structural design that combines steel components with rubber buffer strips at road joints, increasing torque through rotating nuts and screws, and combining this with a telescopic mechanism for double buffering, and by setting up water-collecting troughs and seepage holes for drainage, the problems of easy wear and water seepage of rubber buffer strips are solved, improving the stability and waterproofing of the road and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-31
AI Technical Summary
The existing rubber buffer strips at road joints are prone to wear and tear, resulting in reduced buffering performance and an inability to effectively ensure the stability and safety of the road. At the same time, the lack of an effective drainage mechanism leads to water seepage problems that damage the road structure.
The structure combines steel components with rubber buffer strips. The steel components are fixed to both sides of the road by connecting blocks and connecting bars. The torque is increased by using rotating nuts and screws. The first and second telescopic mechanisms provide double buffering. A water-collecting trough and seepage holes are set below for drainage.
It enhances the stability of road joints, extends service life, reduces the risk of damage caused by uneven stress on the road surface, effectively prevents water penetration, and improves the overall waterproofing capability of the road.
Smart Images

Figure CN224063211U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road construction technology, and in particular to a road joint structure for highways. Background Technology
[0002] Roads, as infrastructure for the passage of various trackless vehicles and pedestrians, can be divided into highways, urban roads and rural roads according to their usage characteristics. Currently, most roads are paved with concrete. Given the long length of roads, they are usually paved in sections during construction, which results in construction joints between adjacent paved sections. In order to ensure the overall quality and durability of the road, jointing devices are generally used to treat the joints.
[0003] In existing road joint treatment technologies, rubber buffer strips are mostly used to bear the tension and cushioning work between the two sides of the road. However, long-term high-frequency use can easily lead to severe wear of the rubber buffer strips, which then enter a period of fatigue, resulting in a significant decrease in cushioning performance and an inability to effectively ensure the stability and safety of the road joint. In addition, when faced with water seepage problems, existing structures often allow water to seep directly into the ground without an effective drainage mechanism. This undoubtedly causes continuous and irreversible damage to the pavement structure, greatly shortening the service life of the road. Utility Model Content
[0004] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a road joint structure for highways.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A road joint structure for highways includes a steel component. Multiple connecting blocks are fixedly installed at equal intervals on the left and right sides of the steel component. Fixed blocks are fixedly installed on both the left and right sides of the upper end of the steel component. A first telescopic mechanism is provided between two fixed blocks. A clamping groove is opened in the middle of the steel component. A rubber buffer strip is provided in the clamping groove. Side plates are fixedly installed on the inner walls of both sides below the steel component. A water-holding trough is provided between two side plates. Multiple second telescopic mechanisms are provided between the water-holding trough and the side plates.
[0007] Preferably, a connecting rib is fixedly connected to the side wall of the connecting block.
[0008] Preferably, the first telescopic mechanism includes multiple outer shells that are fixedly installed on a fixed block at equal intervals, and a connecting column is slidably installed between two outer shells located on the same axis. A first extrusion groove is provided in the side wall of the outer shell, and a first spring is provided in the first extrusion groove. One end of the first spring is connected to the connecting column, and the other end is fixedly connected to the inner wall of the outer shell.
[0009] Preferably, a screw is fixedly installed inside the outer shell, and a rotating nut is threadedly connected to the outside of the screw. The rotating nut is composed of two annular plates, an inner and an outer layer, which are fixedly connected. A rotating groove is provided in the side wall of the connecting column, and the rotating nut is rotatably connected to the rotating groove.
[0010] Preferably, the second telescopic mechanism includes a plurality of equally spaced mounting slots, the mounting slots being located on the side of the side plate near the water tank, a squeezing column being slidably mounted inside the mounting slot, the squeezing column having a cavity inside, and a limiting device being provided at the end of the squeezing column to prevent the squeezing column from detaching from the side plate, a fixed column corresponding to the position of the squeezing column being fixedly mounted at the end of the water tank near the side plate, the fixed column having a sliding groove in its side wall, and the squeezing column being slidably connected to the fixed column through the sliding groove.
[0011] Preferably, the fixed column is provided with a second extrusion groove inside, and a second spring is provided inside the second extrusion groove. One end of the second spring is fixedly connected to the inner wall of the fixed column, and the other end is fixedly connected to the inner wall of the extrusion column.
[0012] Preferably, the water tank is provided with multiple seepage holes at both ends, which are used to drain the water inside the water tank.
[0013] Compared with the prior art, the advantages of this utility model are:
[0014] 1. In this application, the connecting blocks and connecting ribs are embedded in the road, so that the steel components are firmly rooted to the road surface on both sides. When the road is under tension, the steel components and fixing blocks move together, and the rotating nut and screw work together to increase the torque, reduce the tension speed, and ensure that the device remains stable under complex stress, effectively improving the firmness of the road connection and enhancing the stability of the road structure.
[0015] 2. In this application, the rubber buffer strip in the clamping groove can buffer part of the tensile force, and the first spring in the first extrusion groove further absorbs the force as the connecting column moves. After the road pressure is relieved, the spring rebounds and drives the component to return to its position. This dual buffer design greatly reduces the risk of damage caused by uneven road surface stress, extends the service life of the road and equipment, and ensures normal road use.
[0016] In summary, this utility model improves road connectivity performance in multiple ways. A robust connection structure ensures device stability, a double-buffered design effectively reduces shock, and an innovative drainage function protects the road. Multiple mechanisms work together to enhance road stability, extend service life, and improve waterproofing. Attached Figure Description
[0017] Figure 1 This is a schematic side view of the overall structure of a road joint structure for highways proposed in this utility model.
[0018] Figure 2 This is a schematic diagram of the cooperation between the outer shell and the connecting column of a road joint structure for highways proposed in this utility model.
[0019] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle.
[0020] Figure 4 This is a schematic diagram of the connecting column and rotating nut structure of a road joint structure for highways proposed in this utility model.
[0021] Figure 5 This is a schematic diagram of the structure of a road joint structure for highways, showing the interaction between the water-holding trough and the seepage hole.
[0022] Figure 6 for Figure 5 Enlarged view of the structure at point B in the middle.
[0023] In the figure: 1 steel component, 2 connecting block, 3 connecting rib, 4 clamping groove, 5 rubber buffer strip, 6 fixing block, 7 outer shell, 8 connecting column, 9 first extrusion groove, 10 screw rod, 11 rotating nut, 12 water tank, 13 seepage hole, 14 side plate, 16 fixing column, 17 first spring, 18 second spring, 19 second extrusion groove, 20 sliding groove, 21 extrusion column. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] Reference Figures 1 to 6 A road joint structure for highways includes a steel component 1. Multiple connecting blocks 2 are fixedly installed at equal intervals on the left and right sides of the steel component 1. Connecting ribs 3 are fixedly connected to the side walls of the connecting blocks 2. Fixing blocks 6 are fixedly installed on both the left and right sides of the upper end of the steel component 1. Multiple outer shells 7 are fixedly installed at equal intervals on the side of two fixing blocks 6 that are close to each other. A connecting post 8 is slidably installed between two outer shells 7 located on the same axis. A first extrusion groove 9 is opened in the side wall of the outer shell 7. A first spring 17 is provided in the first extrusion groove 9. One end of the first spring 17 is connected to the connecting post 8, and the other end is fixedly connected to the inner wall of the outer shell 7.
[0026] A screw 10 is fixedly installed inside the outer shell 7. A rotating nut 11 is threadedly connected to the outside of the screw 10. The rotating nut 11 is composed of two annular plates, an inner and an outer layer, which are fixedly connected. A rotating groove is provided in the side wall of the connecting column 8. The rotating nut 11 is rotatably connected to the rotating groove, so that when the outer shell 7 is pulled to both sides, the rotating nut 11 will rotate outward on the screw 10. The function is to increase the torque and reduce the pulling speed of the road surface on both sides.
[0027] A groove 4 is provided in the middle of the steel component 1, and a rubber buffer strip 5 is provided in the groove 4. The rubber buffer strip 5 is used to buffer the steel component 1 and the connecting blocks 2 on both sides.
[0028] Side plates 14 are fixedly installed on the inner walls of both sides below the steel component 1. A water-holding tank 12 is provided between the two side plates 14. Multiple installation slots are equally spaced on the side of the side plate 14 near the water-holding tank 12. An extrusion column 21 is slidably installed inside the installation slot. The extrusion column 21 has a cavity inside and a limiting device at the end of the extrusion column 21 to prevent the extrusion column 21 from detaching from the side plate 14. A fixing column 16 corresponding to the position of the extrusion column 21 is fixedly installed at the end of the water-holding tank 12 near the side plate 14. A sliding groove 20 is provided in the side wall of the fixing column 16, and the extrusion column 21 is slidably connected to the fixing column 16 through the sliding groove 20.
[0029] The fixed column 16 is provided with a second extrusion groove 19, and the second extrusion groove 19 is provided with a second spring 18. One end of the second spring 18 is fixedly connected to the inner wall of the fixed column 16, and the other end is fixedly connected to the inner wall of the extrusion column 21.
[0030] The water tank 12 has multiple seepage holes 13 at both ends, which are used to drain the water inside the water tank 12.
[0031] When using this utility model, the connecting block 2 and the connecting rib 3 are first embedded in the road on both sides. The steel component 1 and the connecting block 2 are fixedly connected. The connecting rib 3 is fixedly connected to the outside of the connecting block 2. A rubber buffer strip 5 is set in the middle of the steel component 1 on both sides.
[0032] After the device is installed, when the roads on both sides are stretched by the force, the steel component 1 will be stretched to both sides under the force. At this time, the fixing block 6 on the steel component 1 will also move to both sides. A rotating nut 11 is provided on the outside of the screw 10 in the outer shell 7, and a connecting post 8 is provided on the outside of the rotating nut 11. One side surface of the fixing block 6 and one side surface of the outer shell 7 are fixedly connected. When the outer shell 7 is stretched to both sides, the rotating nut 11 will rotate outward on the screw 10, which increases the torque and reduces the stretching speed of the roads on both sides. A first spring 17 is provided in the first extrusion groove 9. One end of the first spring 17 is fixedly connected to the connecting post 8, and the other end is fixedly connected to the outer shell 7, thereby stretching the first spring 17. The first spring 17 is subjected to force. A rubber buffer strip 5 is provided in the clamping groove 4 to buffer the remaining stretching force. When the pressure on the road surface dissipates, the first spring 17 rebounds, which drives the connecting post 8 to rebound, and the rotating nut 11 slowly returns to its original position.
[0033] A side plate 14 is fixedly connected to the lower end of the steel component 1. An extrusion column 21 is slidably installed inside the side plate 14. A second extrusion groove 19 is provided inside the fixed column 16. A second spring 18 is installed inside the second extrusion groove 19. When the steel component 1 is pulled, the extrusion column 21 will move to one side with the side plate 14 and slide in the sliding groove 20 inside the fixed column 16. The fixed column 16 is fixedly connected in the water tank 12. When sliding to one side, the second spring 18 will pull the extrusion column 21 to release the force, and then rebound to make the extrusion column 21 return to its position. The fixed column 16 is usually hidden in the side plate 14. When water seeps in, the water left from the gap will be blocked by the water tank 12 and then flow out of the seepage hole 13 to a place outside the road surface.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A road joint structure for roads, comprising a steel member (1), characterised in that, The steel member (1) is fixedly installed with multiple connecting blocks (2) at equal intervals on the left and right sides, fixedly installed with fixed blocks (6) on the left and right sides of the upper end of the steel member (1), and provided with a first telescopic mechanism between the two fixed blocks (6), and a clamping groove (4) is formed at the middle position of the steel member (1), a rubber buffer belt (5) is arranged in the clamping groove (4), and side plates (14) are fixedly installed on the inner walls of the two sides below the steel member (1), a water tank (12) is arranged between the two side plates (14), and multiple second telescopic mechanisms are arranged between the water tank (12) and the side plates (14).
2. The highway road joint structure according to claim 1, characterized in that, The connecting block (2) is fixedly connected with a connecting rib (3) on the side wall.
3. The highway road joint structure of claim 1, wherein, The first telescopic mechanism comprises multiple outer shells (7) fixedly installed at equal intervals on the fixed blocks (6), and a connecting column (8) is slidingly installed between two outer shells (7) located on the same axis, a first extrusion groove (9) is formed in the side wall of the outer shell (7), a first spring (17) is arranged in the first extrusion groove (9), one end of the first spring (17) is connected with the connecting column (8), and the other end is fixedly connected with the inner wall of the outer shell (7).
4. The highway road joint structure of claim 3, wherein, A screw rod (10) is fixedly installed in the outer shell (7), a rotating nut (11) is threadedly connected to the outer side of the screw rod (10), the rotating nut (11) is composed of two inner and outer annular plates and is fixedly connected between the two annular plates, a rotating groove is formed in the side wall of the connecting column (8), and the rotating nut (11) is rotatably connected with the rotating groove.
5. The highway road joint structure of claim 1, wherein, The second telescopic mechanism comprises multiple installation grooves arranged at equal intervals, the installation grooves are arranged on the side of the side plate (14) close to the water tank (12), an extrusion column (21) is slidingly installed in the installation groove, the extrusion column (21) is internally provided with a cavity, a limiting device is arranged at the end of the extrusion column (21) to prevent the extrusion column (21) and the side plate (14) from being separated, a fixed column (16) corresponding to the position of the extrusion column (21) is fixedly installed at one end of the water tank (12) close to the side plate (14), a sliding groove (20) is formed in the side wall of the fixed column (16), and the extrusion column (21) is slidingly connected with the fixed column (16) through the sliding groove (20).
6. The highway road joint structure of claim 5, wherein, The fixed column (16) is internally provided with a second extrusion groove (19), the second extrusion groove (19) is internally provided with a second spring (18), one end of the second spring (18) is fixedly connected with the inner wall of the fixed column (16), and the other end is fixedly connected with the inner wall of the extrusion column (21).
7. The highway road joint structure of claim 1, wherein Multiple water permeation holes (13) are arranged at the front and rear ends of the water tank (12), and the water permeation holes (13) are used for draining the accumulated water in the water tank (12).