A convenient installation expansion joint structure for highway
The highway expansion joint with a modular connection structure simplifies the installation process, solves the problem of complex traditional installation, achieves efficient and stable expansion joint installation, has drainage function, and extends the service life of the highway.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI JUNHAO IND CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-09
AI Technical Summary
The installation process for traditional highway expansion joints is cumbersome, requiring complex operations such as on-site welding and pouring, which increases construction costs and difficulty, resulting in low efficiency.
The system adopts a modular connection structure, including uprights, fixing rods, support plates, and curved elastic plates. The installation process is simplified by combining positioning inserts and threaded rods, and the fixing rods tightly engage with the road base layer to enhance the connection strength.
It simplifies the installation process, reduces construction costs, improves efficiency, enhances the stability and vehicle load resistance of expansion joints, prevents displacement, and has drainage function, thus extending the service life of highways.
Smart Images
Figure CN224338050U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of expansion joint technology, and more specifically, to an expansion joint structure for highways that is easy to install. Background Technology
[0002] Expansion joints are structural joints installed at appropriate locations along the construction joint direction of buildings or structures to prevent cracks or damage to building components due to changes in climate temperature (thermal expansion and contraction). In the field of highway engineering, expansion joints play a key role in maintaining the integrity of the road surface structure and ensuring driving safety. With the increase in traffic flow and vehicle load, the performance requirements for expansion joints are constantly increasing.
[0003] Traditional highway expansion joint installation procedures are cumbersome, often requiring complex operations such as on-site welding and pouring. For example, some expansion joints require the components to be welded together on-site, which not only demands high technical skills from construction personnel but also requires the use of various specialized tools and equipment, increasing construction costs and difficulty. At the same time, the complex installation process can easily lead to low construction efficiency and prolong the construction or maintenance period of highways. Therefore, a convenient expansion joint structure for highways is proposed. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an expansion joint structure for highways that is easy to install, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a conveniently installed expansion joint structure for highways, comprising two upright plates installed on both sides of a road gap, with a combined block symmetrically fixedly connected to one side of the two upright plates, and a fixing rod inserted into the road surface fixedly connected to the side of the upright plate away from the combined block. After the "U"-shaped fixing rod is inserted into the road surface, it can tightly engage with the road base layer, increasing the connection strength between the upright plate and the road, so that the entire expansion joint structure is stably fixed on both sides of the road gap, effectively preventing the expansion joint from shifting under the action of vehicle loads and temperature changes. The top of the combined block is provided with multiple threaded holes and positioning holes, and a support plate is provided on the top of the combined block.
[0006] A positioning plate is fixedly connected to one end of the support plate at a position corresponding to the positioning hole. During installation, the positioning plate is first inserted into the positioning hole to initially position the support plate. Then, the support plate is firmly fixed to the assembly block by threaded connection between the threaded rod and the threaded hole. This modular connection method is simple and quick to install, requiring no complicated operations or professional tools. A connecting plate is fixedly connected to the top of the support plate, and multiple arc-shaped elastic plates are fixedly connected between the two support plates. When the arc-shaped elastic plates are deformed under pressure, they can self-recover, preventing cracking caused by compression when the road expands or contracts, thus playing a buffering role. Drainage holes are provided on the sides of the support plate, allowing rainwater to drain quickly when it falls on the expansion joint, preventing rainwater from accumulating in the expansion joint. A support block is fixedly connected to the top of the support plate, and a threaded rod is inserted into the top of the support plate to enhance the connection stability between the two support plates, enabling the expansion joint to better withstand vehicle loads and road surface expansion and contraction deformation.
[0007] Preferably, the fixing rod is configured as a "U"-shaped structure, with the positioning insertion hole, threaded hole, and fixing rod being staggered. After the "U"-shaped fixing rod is inserted into the road, it can tightly engage with the road base layer, increasing the connection strength between the upright plate and the road, and ensuring that the entire expansion joint structure is firmly fixed on both sides of the road gap, effectively preventing the expansion joint from shifting under the influence of factors such as vehicle load and temperature changes.
[0008] Preferably, one side of the inner cavity of the positioning hole is fitted with one side wall of the upright plate, and the width of the positioning hole is greater than the width of the positioning plate. The positioning plate is inserted into the positioning hole to position the support plate for installation.
[0009] Preferably, the positioning insert plate is inserted into the interior of the positioning hole, and the threaded rod extends through the support plate into the interior of the threaded hole and is threadedly connected to the inner cavity of the threaded hole. The support plate can be fixed by inserting the threaded rod into the interior of the threaded hole. The installation is simple and quick, without the need for complicated operations and professional tools.
[0010] Preferably, the cross-sectional shape of the support plate is set to "L" shape, the cross-sectional shape of the support block is set to "T" shape, the top wall of the support block is attached to the top wall of the support plate, and the support block supports the connecting plate that moves to the top of the support plate, thereby improving the support strength of the connecting plate.
[0011] Preferably, the connecting plate and the support block at the top of the support plate are staggered, and multiple connecting plates at the top of the two support plates are arranged crosswise. The connecting plate at the top of one support plate extends to the top of the other support plate. The connection stability between the two support plates is enhanced by the arrangement of the connecting plates, so that the expansion joint can better withstand vehicle loads and road surface expansion and contraction deformation.
[0012] Preferably, the drainage hole is located on the side of the support plate, and the drainage hole is offset from the arc-shaped elastic plate. When rainwater falls on the expansion joint, it can be quickly discharged through the drainage hole, thus preventing rainwater from accumulating in the expansion joint.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] 1. This utility model firstly fixes the fixing rod firmly to the road when the concrete pavement is poured, and then fixes the upright plate. Then, when installing the support plate, the positioning plate is inserted into the positioning hole for initial positioning, and then the threaded rod is passed through the threaded hole for fixation. The installation process is simple and easy to understand, without the need for professional technicians and complicated tools, which greatly shortens the construction time, improves the installation efficiency, reduces the construction cost, and improves the construction efficiency.
[0015] 2. This utility model also uses a fixing rod to fix the upright plate in the road gap, which can improve the connection strength between the upright plate and the road, and can withstand the long-term vehicle load and the influence of various environmental factors. It is not easy to loosen or shift, ensuring the normal function of the expansion joint and the stability of the highway pavement. The supporting block increases the support strength of the connecting plate, and the drainage hole facilitates drainage, effectively preventing rainwater from seeping into the road base layer, protecting the road structure from water damage, and extending the service life of the highway. The arc-shaped elastic plate can prevent cracking caused by compression when the road expands or contracts.
[0016] In summary, through the interaction of the above-mentioned multiple functions, it is easy to install and fix for use. Moreover, the installation process is simple and easy to understand, requiring no professional technicians or complicated tools, which greatly shortens the construction time and improves the installation efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the connection structure between the combined block and the support plate of this utility model.
[0019] Figure 3 This is a schematic diagram showing the disassembled structure of the assembly block and support plate of this utility model.
[0020] Figure 4 This is a schematic diagram of the structure of the vertical plate of this utility model.
[0021] Figure 5 This is a schematic diagram of the disassembled structure of the two support plates of this utility model.
[0022] The attached diagram is labeled as follows: 1. Vertical plate; 2. Assembly block; 3. Fixing rod; 4. Threaded hole; 5. Positioning insertion hole; 6. Support plate; 7. Positioning insertion plate; 8. Support block; 9. Connecting plate; 10. Threaded rod; 11. Drainage hole; 12. Arc-shaped elastic plate. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] As attached Figure 1-3 The diagram shows a conveniently installed expansion joint structure for highways, comprising two upright plates 1 installed on both sides of the road gap. A combination block 2 is symmetrically fixedly connected to one side of the two upright plates 1. A fixing rod 3 inserted into the road is fixedly connected to the side of the upright plate 1 away from the combination block 2. After the "U"-shaped fixing rod 3 is inserted into the road, it can tightly engage with the road base layer, increasing the connection strength between the upright plate 1 and the road, so that the entire expansion joint structure is firmly fixed on both sides of the road gap, effectively preventing the expansion joint from shifting under the action of factors such as vehicle load and temperature changes. The top of the combination block 2 is provided with multiple threaded holes 4 and positioning insertion holes 5, and a support plate 6 is provided on the top of the combination block 2.
[0025] A positioning plate 7 is fixedly connected to one end of the support plate 6 at a position corresponding to the positioning hole 5. During installation, the positioning plate 7 is first inserted into the positioning hole 5 to initially position the support plate 6. Then, the support plate 6 is firmly fixed to the assembly block 2 by threaded connection of the threaded rod 10 and the threaded hole 4. This combination connection method is simple and quick to install, without complicated operations or professional tools. A connecting plate 9 is fixedly connected to the top of the support plate 6. Multiple arc-shaped elastic plates 12 are fixedly connected between the two support plates 6. When the arc-shaped elastic plates 12 are deformed by pressure, they can self-recover, preventing cracking caused by compression when the road expands or contracts, and playing a buffering role. Drainage holes 11 are opened on the side of the support plate 6. When rainwater falls on the expansion joint, it can be quickly discharged through the drainage holes 11 to prevent rainwater from accumulating in the expansion joint. A support block 8 is fixedly connected to the top of the support plate 6. A threaded rod 10 is inserted into the top of the support plate 6 to enhance the connection stability between the two support plates 6, so that the expansion joint can better withstand vehicle loads and road expansion and contraction deformation.
[0026] As attached Figure 1-5As shown, the fixing rod 3 is configured as a "U" shaped structure. The positioning hole 5 and the threaded hole 4 are offset from the fixing rod 3. One side of the inner cavity of the positioning hole 5 is attached to one side wall of the upright plate 1. The width of the positioning hole 5 is greater than the width of the positioning plate 7. The positioning plate 7 is inserted into the interior of the positioning hole 5. The threaded rod 10 passes through the support plate 6 and extends into the interior of the threaded hole 4 and is threadedly connected to the inner cavity of the threaded hole 4. The cross-sectional shape of the support plate 6 is set as an "L" shape. The cross-sectional shape of the support block 8 is set as a "T" shape. The top wall of the support block 8 is attached to the top wall of the support plate 6. The connecting plate 9 at the top of the support plate 6 and the support block 8 are offset from each other. Multiple connecting plates 9 at the top of the two support plates 6 are arranged crosswise. The connecting plate 9 at the top of one support plate 6 extends to the top of the other support plate 6. The drainage hole 11 is located on the side of the support plate 6. The drainage hole 11 is offset from the arc-shaped elastic plate 12. After the U-shaped fixing rod 3 is inserted into the road, it can tightly interlock with the road base, increasing the connection strength between the upright plate 1 and the road, and making the entire expansion joint structure firmly fixed on both sides of the road gap. This effectively prevents the expansion joint from shifting under the influence of factors such as vehicle load and temperature changes. The positioning insert plate 7 is inserted into the positioning insert hole 5 to position the installation of the support plate 6. The threaded rod 10 is inserted into the threaded hole 4 to fix the installation of the support plate 6. The installation is simple and quick, without complicated operations or professional tools. The support block 8 supports the connecting plate 9 that has been moved to the top of the support plate 6, improving the support strength of the connecting plate 9. The setting of the connecting plate 9 enhances the connection stability between the two support plates 6, enabling the expansion joint to better withstand vehicle loads and road expansion and contraction deformation. When rainwater falls on the expansion joint, it can be quickly discharged through the drainage hole 11 to prevent rainwater from accumulating in the expansion joint.
[0027] The working principle of this utility model is as follows: When in use, the upright plate 1 is placed on both sides of the gap in the road surface according to the design position, so that the fixing rod 3 is inserted into the road. The fixing rod 3 is firmly fixed in the road base by means of compaction or pouring concrete, so as to ensure that the upright plate 1 is vertical and stable, and to provide a foundation for the installation of subsequent components.
[0028] During installation, align the positioning insert 7 at the bottom of the support plate 6 with the positioning insert 5 on the assembly block 2 and insert it for initial positioning. Then, pass the threaded rod 10 through the hole on the support plate 6 and screw it into the threaded hole 4 of the assembly block 2 to fix the position of the support plate 6. This completes the installation and fixation. During use, the support plate 6 compresses the arc-shaped elastic plate 12, which can prevent cracking caused by compression when the road expands or contracts. The support block 8 improves the support stability and strength of the connecting plate 9. The drainage hole 11 allows rainwater to drain quickly, preventing rainwater from accumulating in the expansion joint.
[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A conveniently installed expansion joint structure for highways, comprising two upright plates (1) installed on both sides of the road joint gap, characterized in that: Two upright plates (1) are symmetrically fixedly connected to a combination block (2) on opposite sides. A fixing rod (3) inserted into the road is fixedly connected to the side of the upright plate (1) away from the combination block (2). Multiple threaded holes (4) and positioning holes (5) are opened on the top of the combination block (2). A support plate (6) is provided on the top of the combination block (2). A positioning plate (7) is fixedly connected to the bottom end of the support plate (6) at a position corresponding to the positioning hole (5). A connecting plate (9) is fixedly connected to the top of the support plate (6). Multiple arc-shaped elastic plates (12) are fixedly connected between the two support plates (6). Drainage holes (11) are provided on the side of the support plate (6). A support block (8) is fixedly connected to the top of the support plate (6). A threaded rod (10) is inserted into the top of the support plate (6).
2. The easily installable expansion joint structure for highways according to claim 1, characterized in that: The fixing rod (3) is configured as a "U" shaped structure, and the positioning hole (5), threaded hole (4), and fixing rod (3) are misaligned with each other.
3. The easily installable expansion joint structure for highways according to claim 1, characterized in that: The inner cavity of the positioning hole (5) is attached to one side wall of the upright plate (1), and the width of the positioning hole (5) is greater than the width of the positioning plate (7).
4. The easily installable expansion joint structure for highways according to claim 1, characterized in that: The positioning insert (7) is inserted into the interior of the positioning hole (5), and the threaded rod (10) extends through the support plate (6) into the interior of the threaded hole (4) and is threadedly connected to the inner cavity of the threaded hole (4).
5. The easily installable expansion joint structure for highways according to claim 1, characterized in that: The cross-sectional shape of the support plate (6) is set to "L" shape, the cross-sectional shape of the support block (8) is set to "T" shape, and the top wall of the support block (8) is attached to the top wall of the support plate (6).
6. The easily installable expansion joint structure for highways according to claim 1, characterized in that: The connecting plate (9) and the support block (8) at the top of the support plate (6) are misaligned with each other, and multiple connecting plates (9) at the top of the two support plates (6) are arranged crosswise, with the connecting plate (9) at the top of one support plate (6) extending to the top of the other support plate (6).
7. The easily installable expansion joint structure for highways according to claim 1, characterized in that: The drainage hole (11) is located on the side of the support plate (6), and the drainage hole (11) is offset from the arc-shaped elastic plate (12).