Temporary protection structure for overpass highway bridge
By improving protective mechanisms one and two, the installation difficulties and space occupation problems of existing bridge protection structures have been solved, achieving flexible adaptation and stable use, and improving the convenience and space utilization efficiency of temporary bridge protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-03
AI Technical Summary
The existing temporary protective structure for overpass bridges uses hollow plastic bases, which are relatively high and large in size. They are troublesome to install and dismantle, require the cooperation of many people, are inconvenient to transport, and occupy a lot of space.
It adopts two protective mechanisms, including an L-shaped base, a lifting rod, and a locking nut. By adjusting the length of the base and the height of the lifting rod, it can be flexibly adapted and fixed by the locking nut. Combined with rollers and a locking mechanism, it improves the stability of movement and fixation.
This enhances the flexibility and applicability of the device, making it easier to install, disassemble, and store, reducing space occupation, and improving the stability and convenience of use.
Smart Images

Figure CN224078833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge protection technology, specifically a temporary protective structure for an overpass bridge. Background Technology
[0002] An overpass is a structure that crosses a highway, typically located where pedestrians, cyclists, and other vehicles cross expressways and first-class highways, especially in areas with significant traffic conflicts, such as stations, large commercial centers, or other intersections. An overpass (grade-separated) bridge is a bridge that spans traffic lines such as highways, railways, or urban roads. It crosses over existing tracks. Overpasses are further divided into grade-separated and interchange types. The former ensures independent passage for vehicles on the upper and lower levels; the latter allows vehicles on both levels to pass each other, requiring complex, winding ramps in both horizontal and vertical planes, and occupying considerable land. To reduce noise, prestressed concrete bridges are often used.
[0003] When a bridge over a highway is damaged, it needs to be protected and repaired.
[0004] The existing temporary protective structures for overpass bridges have the following disadvantages: they mostly use hollow plastic seats for protection, which are relatively high and large in volume. They are troublesome to install and dismantle, requiring multiple people to work together. They are also very inconvenient to transport, requiring multiple transport vehicles. In addition, they take up a lot of space when stored. Utility Model Content
[0005] To address the problems mentioned in the background section, this utility model provides a temporary protective structure for overpass bridges, comprising a first protective mechanism and a second protective mechanism. This addresses the issues of most temporary protective structures for overpass bridges using hollow plastic bases for arrangement, which are tall, bulky, cumbersome to install and dismantle requiring multiple people to work together, inconvenient to transport requiring multiple transport vehicles, and also occupying considerable space during storage.
[0006] The technical solution of this utility model is: a temporary protective structure for an overpass bridge, including a first protective mechanism and a second protective mechanism. Both the first and second protective mechanisms include a base, a spring, a locking nut, a lifting rod, and a top plate. The base is L-shaped. When the first and second protective mechanisms are retracted, the bases on both sides cooperate with each other. The top of the base has an installation groove. The top end of the lifting rod is fixedly installed at the bottom of the top plate, and the bottom end of the lifting rod is movably inserted into the interior of the installation groove. The spring is movably disposed inside the installation groove. The bottom end of the spring is engaged with the bottom wall of the installation groove, and the top end of the spring is engaged with the bottom end of the lifting rod. The locking nut is threaded onto the outside of the lifting rod and threaded into the inner top of the installation groove.
[0007] Furthermore, a vertical plate is fixedly installed at the bottom of the base, and a roller is provided on the inner side of the vertical plate, with both ends of the roller being movably inserted into the interior of the vertical plate.
[0008] Furthermore, a support plate is fixedly installed on one side of the outer wall of the base, and a threaded rod is installed on the internal thread of the support plate.
[0009] Furthermore, an anti-slip plate is movably mounted on the bottom end of the threaded rod via a bearing, and a rotating plate is fixedly mounted on the top end of the threaded rod.
[0010] Furthermore, a limiting groove is fixedly installed on the top of the top plate, and a warning plate is provided inside the limiting groove for limiting engagement.
[0011] Furthermore, a sliding groove is formed on one side wall of the base, and a slider is fixedly installed on one side wall of the base on the other side, with the slider slidably connected to the sliding groove.
[0012] This utility model provides an improved temporary protective structure for overpass bridges, which has the following improvements and advantages compared with the prior art:
[0013] With protective mechanism one and protective mechanism two, the overall length of the two bases can be adjusted by pulling the L-shaped base as needed, making protective mechanism one and protective mechanism two more adaptable to the needs of use. At the same time, the height of the lifting rod can be adjusted to meet different needs and fixed by locking the nut, thus making the device more applicable and wider in scope of use. It is also easy to fold and store, occupies less space, and is more flexible. Attached Figure Description
[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0015] Figure 1 This is a three-dimensional schematic diagram of the protective mechanism of this utility model;
[0016] Figure 2 This is a cross-sectional schematic diagram of the protective mechanism of this utility model;
[0017] Figure 3 This is a schematic diagram of the retracted state of the first and second protective mechanisms of this utility model.
[0018] Figure 4 This is a schematic diagram of the open state of the first and second protective mechanisms of this utility model;
[0019] Figure 5 This is a top view of the base mounting structure of this utility model;
[0020] Explanation of reference numerals in the attached drawings: 1. Protective mechanism one; 2. Base; 3. Mounting groove; 4. Threaded rod; 5. Support plate; 6. Anti-slip plate; 7. Vertical plate; 8. Roller; 9. Slide groove; 10. Slider; 11. Locking nut; 12. Top plate; 13. Limit seat; 14. Warning plate; 15. Protective mechanism two; 16. Lifting rod. Detailed Implementation
[0021] The following will be combined with the appendix Figures 1 to 5 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0022] This utility model provides an improved temporary protective structure for overpass bridges, such as... Figure 1-5As shown in the figure, the device includes a protective mechanism 1 and a protective mechanism 2 15. Both protective mechanisms 1 and 2 include a base 2, a spring, a locking nut 11, a lifting rod 16, and a top plate 12. The base 2 is L-shaped. When the protective mechanisms 1 and 2 are retracted, the bases 2 on both sides cooperate with each other. The top of the base 2 has a mounting groove 3. The top of the lifting rod 16 is fixedly installed on the bottom of the top plate 12, and the bottom end of the lifting rod 16 is movably inserted into the interior of the mounting groove 3. The spring is movably disposed inside the mounting groove 3, with the bottom end of the spring engaging with the bottom wall of the mounting groove 3 and the top end of the spring engaging with the bottom end of the lifting rod 16. The locking nut 11 is threaded onto the lifting rod 16. Externally, the locking nut 11 is threaded into the top inner side of the mounting groove 3. With the presence of protective mechanism 1 and protective mechanism 2 15, the overall length of the two bases 2 can be adjusted by pulling the L-shaped base 2 as needed, making the protective mechanism 1 and protective mechanism 2 15 more suitable for use. At the same time, the height of the lifting rod 16 can be adjusted to meet different needs and fixed by the locking nut 11, making the device more applicable and wider in scope. It is also convenient to fold and store, occupies less space, and is more flexible. The spring can provide auxiliary support for the lifting rod 16, making its use more stable.
[0023] A vertical plate 7 is fixedly installed at the bottom of the base 2. A roller 8 is provided on the inner side of the vertical plate 7. The roller 8 facilitates the movement of the device. The two ends of the roller 8 are movably inserted into the interior of the vertical plate 7. The left and right contact parts of the two bases 2 can be provided with locking mechanisms, similar to the connection of movable hooks and hook rings, so that the first protective mechanism 1 and the second protective mechanism 15 are more stable when retracted. At the same time, positioning bolts can be used to insert through the two bases 2, so that the first protective mechanism 1 and the second protective mechanism 15 are more fixed when opened. A sliding groove 9 is opened on one side wall of one base 2, and a slider 10 is fixedly installed on one side wall of the other base 2. The slider 10 is slidably connected to the sliding groove 9. At the same time, limit grooves 13 can be provided on the upper and lower sides of the sliding groove 9, and limit plates are provided on the upper and lower ends of the slider 10. The limit plates are set in the limit grooves 13, so that the front and rear walls of the base 2 are not easy to separate when they contact each other, making its movement more stable when it is opened and stretched.
[0024] A support plate 5 is fixedly installed on one side of the outer wall of the base 2. A threaded rod 4 is installed inside the support plate 5. An anti-slip plate 6 is movably installed at the bottom end of the threaded rod 4 through a bearing. A rotating plate is fixedly installed at the top end of the threaded rod 4. When the device needs to be fixed during use, the threaded rod 4 can be adjusted to make the anti-slip plate 6 move down, thereby making the device brake after adjustment and making its use effect better.
[0025] A limiting groove 13 is fixedly installed on the top of the top plate 12. A warning plate 14 is installed inside the limiting groove 13. The warning plate 14 can serve as a warning to people and prevent them from getting too close and causing danger.
[0026] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A temporary protective structure for an overpass bridge, comprising a first protective mechanism (1) and a second protective mechanism (15), characterized in that: Both the first protective mechanism (1) and the second protective mechanism (15) include a base (2), a spring, a locking nut (11), a lifting rod (16), and a top plate (12). The base (2) is L-shaped. When the first protective mechanism (1) and the second protective mechanism (15) are retracted, the base (2) on both sides cooperates with each other. The top of the base (2) has an installation groove (3). The top of the lifting rod (16) is fixedly installed at the bottom of the top plate (12). The bottom end of the lifting rod (16) is movably inserted into the interior of the installation groove (3). The spring is movably installed inside the installation groove (3). The bottom end of the spring is engaged with the bottom wall of the installation groove (3). The top end of the spring is engaged with the bottom end of the lifting rod (16). The locking nut (11) is threaded onto the outside of the lifting rod (16). The locking nut (11) is threaded into the top inner side of the installation groove (3).
2. The temporary protective structure for an overpass bridge as described in claim 1, characterized in that: A vertical plate (7) is fixedly installed at the bottom of the base (2). A roller (8) is provided on the inner side of the vertical plate (7), and the two ends of the roller (8) are respectively movably inserted into the interior of the vertical plate (7).
3. The temporary protective structure for an overpass bridge as described in claim 1, characterized in that: A support plate (5) is fixedly installed on one side of the outer wall of the base (2), and a threaded rod (4) is installed inside the support plate (5).
4. The temporary protective structure for an overpass bridge as described in claim 3, characterized in that: The bottom end of the threaded rod (4) is movably mounted with an anti-slip plate (6) via a bearing, and the top end of the threaded rod (4) is fixedly mounted with a rotating plate.
5. The temporary protective structure for an overpass bridge as described in claim 1, characterized in that: A limiting groove (13) is fixedly installed on the top of the top plate (12), and a warning plate (14) is provided inside the limiting groove (13) for limiting engagement.
6. The temporary protective structure for an overpass bridge as described in claim 1, characterized in that: A sliding groove (9) is provided on one side wall of the base (2) on one side, and a slider (10) is fixedly installed on one side wall of the base (2) on the other side. The slider (10) is slidably connected to the sliding groove (9).