Novel road and bridge crack reinforcing device
By combining symmetrical strip fixing plates, pressure plates, and triangular reinforcing ribs, the problem of incomplete reinforcement of bridge cracks in existing technologies has been solved, achieving effective prevention of crack expansion and stabilization of the bridge structure.
Patent Information
- Application Number
- CN202423049157.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing bridge crack reinforcement devices only reinforce the inside of the crack, which cannot effectively prevent the crack from expanding and the filling material from falling off, and do not provide auxiliary reinforcement to the bridge structure near the crack.
Symmetrical strip fixing plates are used in conjunction with multiple strip pressure plates. They are fixed to the bridge deck by positioning pins and threaded pins. Combined with triangular reinforcing ribs and double-ended threaded rods, opposing forces are applied to prevent cracks from expanding. They are then fixed to the bridge deck by internal thread connections.
It effectively prevents cracks from widening, prevents the filler from detaching, enhances the stability of the bridge structure near the cracks, and avoids bridge deck breakage.
Smart Images

Figure CN223496999U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road and bridge engineering, and in particular to a novel road and bridge crack reinforcement device. Background Technology
[0002] An existing patent (publication number: CN110374019B) proposes a novel road and bridge crack reinforcement device and method, targeting cracks with uneven bottoms. The device includes a steel plate and reinforcing bars installed beneath the steel plate. The steel plate has connection holes on both sides, each containing a bolt. A casting hole is located in the center of the steel plate, and insertion holes are evenly distributed throughout the plate. The reinforcing bars include horizontal and vertical bars. The vertical bars pass through the insertion holes and are fixed to the steel plate, while the horizontal bars are fixed to the vertical bars. However, this device only reinforces the interior of the crack and lacks an auxiliary reinforcement structure near the crack, thus failing to control crack expansion. Summary of the Invention
[0003] This utility model addresses the aforementioned shortcomings of existing technologies by providing a novel road and bridge crack reinforcement device. This device utilizes a combination of symmetrical strip-shaped fixing plates and multiple strip-shaped pressure plates to ensure the size of cracks, preventing further crack expansion during road and bridge crack reinforcement, and preventing the sealant filling the crack from breaking off from the crack sidewall and falling out. Simultaneously reinforcing the crack and the area near the crack, this device also prevents the bridge deck near the crack from easily breaking.
[0004] The objective of this utility model is achieved through the following technical solution:
[0005] A novel road and bridge crack reinforcement device includes a bridge deck, a strip fixing plate, an internally threaded boss, an internally threaded side sleeve, a triangular reinforcing rib, a strip pressure plate, positioning pins, threaded studs, cracks, and a double-ended threaded rod. The strip fixing plate has multiple rectangular side grooves, and the strip pressure plate is adapted to the rectangular side grooves and inserted into the rectangular side grooves. The strip pressure plate has pressure plate side plates, which are symmetrically arranged on both sides of the strip pressure plate. The lower surface of the strip fixing plate is in contact with the pressure plate side plates. The bottom of the strip fixing plate has multiple positioning pins, and the pressure plate side plates have positioning pin insertion holes. The positioning pins are adapted to the positioning pin insertion holes and inserted into the positioning pin insertion holes. The positioning pins are aligned with the lower surface of the pressure plate side plates, and the lower surface of the strip pressure plate is in contact with the bridge deck.
[0006] The strip-shaped fixing plates are symmetrically arranged at both ends of the pressure plate side plate. Multiple strip-shaped pressure plates are evenly distributed between the symmetrical strip-shaped fixing plates. The upper part of the strip-shaped fixing plates has multiple internal threaded bosses. The internal threaded bosses have internal threaded holes. The threaded pins are adapted to the internal threaded holes. The threaded pins pass through the internal threaded holes and are inserted into the bridge plate. The threaded pins are connected to the nuts by threads. The lower surface of the nuts is in contact with the upper surface of the internal threaded bosses. Beneficial effects
[0007] 1. This utility model uses multiple positioning pins installed and fixed at the bottom of a strip-shaped fixing plate. The alignment of the symmetrically arranged strip-shaped fixing plates is ensured by the insertion of the strip-shaped pressure plate and the rectangular side groove, preventing horizontal misalignment or tilting during road and bridge crack reinforcement. The positioning pins are inserted into the positioning pin holes to connect the two ends of the strip-shaped pressure plate with the symmetrical strip-shaped fixing plates. The distribution of multiple strip-shaped pressure plates ensures the spacing between the symmetrical strip-shaped fixing plates, preventing changes in the spacing during road and bridge crack reinforcement. This ensures that the symmetrical strip-shaped fixing plates are distributed within the maximum force range on both sides of the crack, guaranteeing the reinforcement effect. Threaded pins are inserted into the bridge deck through internal threaded holes and connected to nuts. The nuts fix the strip-shaped fixing plates to the threaded pins, preventing the cracks from expanding. By installing and fixing the symmetrical strip-shaped fixing plates on both sides of the crack, this structure effectively prevents the crack from expanding.
[0008] 2. This utility model uses triangular reinforcing ribs to reinforce rectangular convex plates. Double-ended threaded rods pass through the rectangular convex plates and connect to internal threaded locking sleeves. Through the connection between the two ends of the double-ended threaded rods and the internal threaded locking sleeves, opposing forces are applied to the symmetrical rectangular side grooves, causing the double-ended threaded rods to tend to move towards the symmetrical strip-shaped fixing plates. This results in a convergence effect on cracks, preventing further expansion of cracks in road and bridge crack reinforcement. When in use, the device uses the cooperation of symmetrical strip-shaped fixing plates and multiple strip-shaped pressure plates to ensure the size of the crack, preventing further expansion of cracks in road and bridge crack reinforcement. It also prevents the sealant filling the crack from breaking off from the crack sidewall and falling into the crack. Simultaneously reinforcing the crack, the device also reinforces the area near the crack, preventing the bridge deck near the crack from easily breaking. Attached Figure Description
[0009] Figure 1 This is an isometric view of a novel road and bridge crack reinforcement device according to the present invention.
[0010] Figure 2 This is a top-view axonometric drawing of the rectangular side groove described in this utility model.
[0011] Figure 3 This is a bottom-view axonometric drawing of the rectangular side groove described in this utility model.
[0012] Figure 4 This is an isometric view of the strip pressure plate described in this utility model.
[0013] Figure 5 This is an isometric view of the threaded insert described in this utility model. Detailed Implementation
[0014] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:
[0015] Example 1:
[0016] A novel road and bridge crack reinforcement device includes a bridge deck 01, a strip fixing plate 02, an internally threaded boss 04, an internally threaded side sleeve 07, a triangular reinforcing rib 09, a strip pressure plate 10, a positioning post 13, a threaded pin 14, a crack 15, and a double-ended threaded rod 16. The strip fixing plate 02 has multiple rectangular side grooves 03. The strip pressure plate 10 is adapted to the rectangular side grooves 03 and inserted into the rectangular side grooves 03. The strip pressure plate 10 has pressure plate side plates 11, which are symmetrically arranged on both sides of the strip pressure plate 10. The lower surface of the strip fixing plate 02 is in contact with the pressure plate side plates 11. The strip fixing plate 02 has multiple positioning pins 13 at its bottom, and the pressure plate side plate 11 has positioning pin insertion holes 12. The positioning pins 13 are adapted to the positioning pin insertion holes 12 and are inserted into the positioning pin insertion holes 12. The positioning pins 13 are aligned with the lower surface of the pressure plate side plate 11, and the lower surface of the strip pressure plate 10 is in contact with the bridge deck 01. The multiple positioning pins 13 are installed and fixed at the bottom of the strip fixing plate 02. The alignment of the symmetrically arranged strip fixing plates 02 is ensured by the insertion of the strip pressure plate 10 and the rectangular side groove 03, which prevents the two from being horizontally misaligned or tilted in the reinforcement of road and bridge cracks.
[0017] Example 2:
[0018] The strip-shaped fixing plates 02 of this utility model are symmetrically arranged at both ends of the pressure plate side plate 11. Multiple strip-shaped pressure plates 10 are evenly distributed between the symmetrical strip-shaped fixing plates 02. Positioning pins 13 are inserted into positioning pin holes 12 to connect the two ends of the strip-shaped pressure plates 10 to the symmetrical strip-shaped fixing plates 02. The distribution of multiple strip-shaped pressure plates 10 ensures the spacing between the symmetrical strip-shaped fixing plates 02, preventing changes in the spacing during road and bridge crack reinforcement. This ensures that the symmetrical strip-shaped fixing plates 02 are distributed within the maximum force range on both sides of the crack 15, guaranteeing the reinforcement effect on the crack 15. The upper part of the strip-shaped fixing plates 02 has multiple... An internally threaded boss 04 has an internally threaded hole 05. A threaded pin 14 is adapted to the internally threaded hole 05 and is inserted into the bridge deck 01 through the internally threaded hole 05. The threaded pin 14 is connected to a nut 18 by a thread. The lower surface of the nut 18 is in contact with the upper surface of the internally threaded boss 04. The strip fixing plate 02 is fixed to the threaded pin 14 by the nut 18. The rectangular side groove 03 is fixed to the bridge deck 01 by the threaded pin 14 to prevent the crack from expanding. By installing and fixing the symmetrical strip fixing plates 02 on both sides of the crack 15, an effective structure can be formed to prevent the crack 15 from expanding.
[0019] Example 3:
[0020] The rectangular side groove 03 of this utility model has a rectangular convex plate 06 on the upper part and a strip-shaped fixing plate 02 connected to the lower part of the triangular reinforcing rib 09. The side of the triangular reinforcing rib 09 is connected to the rectangular convex plate 06, and the triangular reinforcing rib 09 reinforces the rectangular convex plate 06. The side of the rectangular convex plate 06 has a set of internal threaded side sleeves 07. The internal threaded side sleeves 07 have side sleeve threaded holes 08. The double-headed threaded rod 16 is adapted to the side sleeve threaded holes 08. The double-headed threaded rod 16 is inserted into the side sleeve threaded holes 08. The double-headed threaded rod 16 is connected to the internal threaded locking sleeve 17 by threads.
[0021] Example 4:
[0022] The internal threaded locking sleeve 17 of this invention is fitted with a rectangular convex plate 06 on its side. Two sets of double-ended threaded rods 16 are distributed between symmetrical strip-shaped fixing plates 02. Multiple strip-shaped pressure plates 10 are positioned above the crack 15. Through the connection between the two ends of the double-ended threaded rods 16 and the internal threaded locking sleeve 17, opposing forces are applied to the symmetrical strip-shaped fixing plates 02, causing the double-ended threaded rods 16 to tend to move towards the symmetrical strip-shaped fixing plates 02. This results in a convergence effect on the crack 15, preventing crack 15 from forming during road and bridge crack reinforcement. To prevent the crack from expanding further, the device uses symmetrical strip fixing plates 02 and multiple strip pressure plates 10 to ensure the size of the crack 15 during use. This prevents the crack 15 from expanding further during road and bridge crack reinforcement and prevents the sealant filling the crack 15 from breaking off from the sidewall and falling out of the crack 15. The device also reinforces the area near the crack 15 while reinforcing it, preventing the bridge deck 01 near the crack 15 from easily breaking during road and bridge crack reinforcement.
[0023] Example 5:
[0024] The installation steps of this utility model are as follows: First, drill holes in the bridge deck 01, connect the positioning pin 13 to the strip fixing plate 02, insert the positioning pin 13 into the positioning pin hole 12, fit the lower surface of the strip pressure plate 10 with the bridge deck 01, insert the threaded pin 14 through the internal thread hole 05 into the bridge deck 01, connect the threaded pin 14 through the threaded connection, connect the triangular reinforcing rib 09 to the strip fixing plate 02 and the rectangular convex plate 06, pass the double-headed threaded rod 16 through the side sleeve thread hole 08, and connect both ends of the double-headed threaded rod 16 to the internal thread locking sleeve 17.
[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A novel road and bridge crack reinforcement device, characterized in that: The structure includes a bridge deck (01), a strip fixing plate (02), an internally threaded boss (04), an internally threaded side sleeve (07), a triangular reinforcing rib (09), a strip pressure plate (10), a positioning pin (13), a threaded stud (14), a crack (15), and a double-ended threaded rod (16). The strip fixing plate (02) has multiple rectangular side grooves (03). The strip pressure plate (10) is adapted to the rectangular side grooves (03). The strip pressure plate (10) is inserted into the rectangular side grooves (03). The strip pressure plate (10) has a pressure plate side plate (11). The plate (11) is symmetrically arranged on both sides of the strip pressure plate (10). The lower surface of the strip fixing plate (02) is in contact with the side plate (11) of the pressure plate. The bottom of the strip fixing plate (02) has multiple positioning pins (13). The side plate (11) of the pressure plate has positioning pin holes (12). The positioning pins (13) are adapted to the positioning pin holes (12). The positioning pins (13) are inserted into the positioning pin holes (12). The positioning pins (13) are aligned with the lower surface of the side plate (11) of the pressure plate. The lower surface of the strip pressure plate (10) is in contact with the bridge deck (01).
2. The novel road and bridge crack reinforcement device according to claim 1, characterized in that: The strip fixing plate (02) is symmetrically arranged at both ends of the pressure plate side plate (11). Multiple strip pressure plates (10) are evenly distributed between the symmetrical strip fixing plates (02). The upper part of the strip fixing plate (02) has multiple internal thread bosses (04). The internal thread bosses (04) have internal thread holes (05). The threaded pins (14) are adapted to the internal thread holes (05). The threaded pins (14) pass through the internal thread holes (05) and are inserted into the bridge plate (01). The threaded pins (14) are connected to the nuts (18) by threads. The lower surface of the nuts (18) is in contact with the upper surface of the internal thread bosses (04).
3. The novel road and bridge crack reinforcement device according to claim 2, characterized in that: The rectangular side groove (03) has a rectangular convex plate (06) on the upper part, and a strip fixing plate (02) is connected to the lower part of the triangular reinforcing rib (09). The rectangular convex plate (06) is connected to the side of the triangular reinforcing rib (09). The rectangular convex plate (06) has a set of internal thread side sleeves (07) on the side. The internal thread side sleeves (07) have side sleeve thread holes (08). The double-headed thread rod (16) is adapted to the side sleeve thread hole (08). The double-headed thread rod (16) is inserted into the side sleeve thread hole (08). The double-headed thread rod (16) is connected to the internal thread locking sleeve (17) by thread.
4. The novel road and bridge crack reinforcement device according to claim 1, characterized in that: The side of the internal threaded locking sleeve (17) is in contact with the rectangular convex plate (06), and two sets of double-headed threaded rods (16) are distributed between symmetrical strip-shaped fixing plates (02). Multiple strip-shaped pressure plates (10) are located above the crack (15).
Citation Information
Patent Citations
Road and bridge crack reinforcement devices and reinforcement methods
CN110374019B