Road and bridge crack reinforcing device

Abstract

The utility model discloses a road and bridge crack reinforcing device, and mainly relates to the technical field of building structures. Comprising a filler and a groove, a bearing plate in contact with the filler is arranged in the groove, the fixing plates are symmetrically arranged at the two ends of the groove, the cover plate is arranged above the fixing plates and covers the fixing plates and the bearing plate, lower protruding blocks are arranged at the two ends of the bearing plate, and upper protruding blocks in contact with the lower protruding blocks are arranged at the ends of the fixing plates. The first bolts penetrate through the counterbores and then are in threaded connection with the road bridge, the second bolts penetrate through the adjusting holes and then are in threaded connection with the fixing plate and the road bridge, one side of the cover plate makes contact with the road bridge, and a first spring is arranged between the other side of the cover plate and the road bridge. The utility model has the beneficial effects that the problem that the bolt for fixing the bearing plate is easy to loosen and fall off is solved, and the service life of the road and bridge crack after reinforcement is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, in particular to a road bridge crack reinforcement device. Background Art

[0002] Roads and bridges are generally composed of several major parts, including roadbeds, pavements, bridges, tunnel projects, and traffic engineering facilities. After the roads and bridges are laid, they are put into use. After years of long-term use, they are exposed to high temperatures, severe cold, rain, and the rolling of heavy vehicles. They gradually become aged and crack. Untimely maintenance will cause the cracks to become more serious, and continued use will pose a safety hazard. Therefore, the cracks in roads and bridges must be repaired.

[0003] For example, the invention patent with the publication (announcement) number CN106917359A discloses a road bridge crack reinforcement device and reinforcement method. When repairing, a deep groove is first chiseled along the crack, and then cement mortar, epoxy mortar, asphalt, reinforcing agent and other bonding materials are embedded in the groove. The repair is completed after the bonding material solidifies. However, the filler has a low adhesion to the original roadbed and is easily damaged and falls off during subsequent use. For this reason, people usually install a rigid bearing plate on its surface to reinforce and protect it.

[0004] However, since the rigid bearing plate is generally installed on the road surface through bolts or expansion nails, the lateral and longitudinal forces generated by the contact between the car and the bearing plate will act on the bolts or expansion nails through the bearing plate. Over time, the bolts or expansion nails are likely to fall off, causing the rigid bearing plate to fall off, greatly reducing the service life of the road and bridge cracks after reinforcement. Utility Model Content

[0005] The utility model aims to provide a road bridge crack reinforcement device to solve the problem that bolts fixing a receiving plate are easy to loosen and fall off, thereby increasing the service life of the road bridge crack reinforcement device.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] A road bridge crack reinforcement device includes a filler filled in the crack of the road bridge, the road bridge is provided with a groove connected to the crack, the groove is provided with a receiving plate in contact with the filler, and also includes fixed plates symmetrically arranged at both ends of the groove, and a cover plate arranged above the fixed plate to cover the fixed plate and the receiving plate, the two ends of the receiving plate are provided with lower protrusions, the end of the fixed plate is provided with an upper protrusion in contact with the lower protrusion, the fixed plate is provided with a countersunk hole and a first bolt, the first bolt is threadedly connected to the road bridge after passing through the countersunk hole, and also includes a plurality of second bolts and a plurality of adjustment holes arranged at both ends of the cover plate, the second bolt is threadedly connected to the fixed plate and the road bridge after passing through the adjustment holes, one side of the cover plate is in contact with the road bridge, and a first spring is provided between the other side of the cover plate and the road bridge.

[0008] Furthermore, a protrusion that contacts the cover plate is provided on the top of the receiving plate.

[0009] Furthermore, the receiving plate is slidably arranged between two fixed plates, a sliding rod is respectively provided at both ends of the receiving plate, a piston is provided at the end of the sliding rod which is slidably connected to the fixed plate, a second spring is sleeved on the outer side of the sliding rod, and the second spring is arranged between the fixed plate and the receiving plate.

[0010] Furthermore, a plurality of first wedge-shaped blocks are symmetrically provided at the bottom of the cover plate, a plurality of first wedge-shaped grooves are provided at the upper side of the receiving plate, and a first inclined surface in contact with the first wedge-shaped groove is provided on one side of the first wedge-shaped block.

[0011] Furthermore, a plurality of second wedge-shaped blocks are symmetrically provided at the bottom of the receiving plate, a plurality of second wedge-shaped grooves are provided at the upper side of the road bridge, and a second inclined surface in contact with the second wedge-shaped groove is provided on one side of the second wedge-shaped block.

[0012] Furthermore, a plurality of dampers are provided on the road bridge, and the movable ends of the dampers are in contact with the cover plate.

[0013] Furthermore, a plurality of transverse bars and longitudinal bars connected to the road bridge are provided at the crack.

[0014] Furthermore, a cushion block is provided between the second bolt and the cover plate, and the cushion block is provided with a plurality of steel balls that are in rolling contact with the cover plate and the second bolt at the same time.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. Place two fixing plates on both ends of the receiving plate respectively, so that the protrusion on the fixing plate is above the lower protrusion of the receiving plate, and a plurality of first bolts are passed through the countersunk holes and threadedly connected with the road bridge, so as to fix the fixing plate on the road bridge, and the upper protrusion provided at the end of the fixing plate contacts the lower protrusion of the receiving plate, and the force generated limits the upward and downward movement of the receiving plate relative to the fixing plate, so as to fix the receiving plate between the two fixing plates;

[0017] 2. Then, a first spring is arranged between one side of the cover plate and the road bridge, and the second bolt is passed through the adjustment hole and is respectively threadedly connected with the fixing plate and the road bridge, so that the cover plate is arranged above the fixing plate and the receiving plate and covers them, thereby preventing the receiving plate and the fixing plate from directly contacting the vehicle, causing the first bolt fixing the receiving plate and the fixing plate to loosen and fall off, thereby extending the service life of the road bridge crack after reinforcement;

[0018] 3. When the cover is in a stationary state, the first spring is in a compressed state, and the rebound force generated after compression acts on the cover, so that the other side of the cover contacts the road bridge; when the car passes the cover in the reverse direction, the friction force generated by the contact between the two acts on the cover, and the spring force applied to the cover will offset it, preventing the cover from sliding significantly relative to the groove; when the car passes the cover in the forward direction, the resistance generated by the contact between the cover and the road bridge offsets the friction force of the car on the cover, preventing the cover from sliding relative to the groove; at the same time, the second bolt can slide relative to the adjusting groove, avoiding external force on the second bolt during the sliding process of the cover, thereby improving the stability of the overall structure and extending the service life of the road bridge cracks after reinforcement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attached Figure 1 It is a structural schematic diagram of a receiving plate of the utility model.

[0020] Attached Figure 2 This utility model is attached Figure 1 A partial enlarged view of area A in the middle.

[0021] Attached Figure 3 This utility model is attached Figure 1 A partial enlarged view of area B in the middle.

[0022] Numbers shown in the accompanying drawings:

[0023] 1. Road bridge; 2. Crack; 3. Filler; 4. Groove; 5. Socket plate; 6. Fixing plate; 7. Cover plate; 8. Lower protrusion; 9. Upper protrusion; 10. Countersunk hole; 11. First bolt; 12. Second bolt;

[0024] 13. Adjustment hole; 14. First spring; 15. Protrusion; 16. Sliding rod; 17. Piston; 18. Second spring; 19. First wedge block; 20. First wedge groove; 21. First inclined surface; 22. Second wedge block; 23. Second wedge groove; 24. Second inclined surface; 25. Damper; 26. Transverse rib; 27. Longitudinal rib; 28. Spacer; 29. ​​Steel ball. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0026] A road bridge crack reinforcement device, such as Figure 1 , Figure 2 and Figure 3As shown, it includes a filler 3 filled in the crack 2 of the road bridge 1, which is used to fill the crack 2 of the road bridge 1 to avoid bumps during the driving of the car. The road bridge 1 is provided with a groove 4 connected with the crack 2 to prevent the receiving plate 5, the fixing plate 6 and the cover plate 7 from protruding from the road bridge 1, causing bumps during the driving of the car, and at the same time aggravating the force of the car on the reinforcement device, affecting the stability of the overall structure, thereby extending the service life of the crack 2 of the road bridge 1 after reinforcement; the groove 4 is provided with a receiving plate 5 in contact with the filler 3 to reinforce and protect the filler 3 at the crack 2 to prevent the filler 3 from being damaged and falling off during subsequent use; it also includes The fixing plates 6 symmetrically arranged at both ends of the groove 4, and the cover plate 7 arranged above the fixing plate 6 to cover the fixing plate 6 and the receiving plate 5, prevent the receiving plate 5 and the fixing plate 6 from directly contacting the vehicle, causing the first bolts 11 fixing the receiving plate 5 and the fixing plate 6 to loosen and fall off, thereby extending the service life of the road bridge 1 after the crack 2 is reinforced; the receiving plate 5 is provided with a lower protrusion 8 at both ends, and the end of the fixing plate 6 is provided with an upper protrusion 9 contacting the lower protrusion 8, and the upper protrusion 9 provided at the end of the fixing plate 6 contacts the lower protrusion 8 of the receiving plate 5, and the force generated by the contact between the upper protrusion 9 provided at the end of the fixing plate 6 and the lower protrusion 8 of the receiving plate 5 limits the upward and downward movement of the receiving plate 5 relative to the fixing plate 6, and fixes the receiving plate 5 on the two fixing plates 6. The fixing plate 6 is provided with a countersunk hole 10 and a first bolt 11, and the first bolt 11 is threadedly connected with the road bridge 1 after passing through the countersunk hole 10, so as to realize the fixing of the fixing plate 6 on the road bridge 1, and at the same time avoid the first bolt 11 on the fixing plate 6 from being exposed to the outside, improve the stability of the fixing of the receiving plate 5, and thus extend the service life of the road bridge 1 after the crack 2 is reinforced; it also includes a plurality of second bolts 12, and a plurality of adjustment holes 13 arranged at both ends of the cover plate 7, and the second bolts 12 are threadedly connected with the fixing plate 6 and the road bridge 1 after passing through the adjustment holes 13, and one side of the cover plate 7 is in contact with the road bridge 1, and the cover plate 7 A first spring 14 is provided between the other side and the road bridge 1. When the cover plate 7 is in a stationary state, the first spring 14 is in a compressed state, and the rebound force generated after the compression acts on the cover plate 7. At the same time, the other side of the cover plate 7 is in contact with the road bridge 1; when the car passes over the cover plate 7, the friction force generated after the contact between the two acts on the cover plate 7, and the spring force applied to the cover plate 7 will offset it, avoiding the cover plate 7 from sliding significantly relative to the groove 4. At the same time, the second bolt 12 can slide relative to the adjusting groove, avoiding external force acting on the second bolt 12 during the sliding process of the cover plate 7, thereby improving the stability of the overall structure and extending the service life of the road bridge 1 after the crack 2 is reinforced.

[0027] Preferably, Figure 1As shown, the top of the receiving plate 5 is provided with a protrusion 15 in contact with the cover plate 7. When the cover plate 7 is pressed down, the cover plate 7 contacts the protrusion 15 on the top of the receiving plate 5, thereby applying downward pressure to the middle part of the receiving plate 5, further compacting the filler 3 at the crack 2, ensuring the stability of the overall structure, and extending the service life of the road bridge 1 after the crack 2 is reinforced.

[0028] Preferably, Figure 1 and Figure 3 As shown, the receiving plate 5 is slidably arranged between the two fixed plates 6 to prevent the fixed plate 6 from directly bearing the lateral force acting on the receiving plate 5, causing the first bolt 11 on the fixed plate 6 to loosen, affecting the fixation of the receiving plate 5; sliding rods 16 are respectively provided at both ends of the receiving plate 5, and the ends of the sliding rods 16 are provided with pistons 17 slidably connected to the fixed plates 6, which play a damping role to prevent the receiving plate 5 from rocking back and forth between the fixed plates 6, and the outer side of the sliding rod 16 is sleeved with a second spring 18, which is arranged between the fixed plate 6 and the receiving plate 5, and the spring force generated by the compression of the second spring 18 is used to limit the sliding of the receiving plate 5 on the fixed plate 6; at the same time, the rebound force generated after compression is used to offset part of the lateral force acting on the receiving plate 5.

[0029] Preferably, Figure 1 and Figure 3 As shown, a plurality of first wedge blocks 19 are symmetrically provided at the bottom of the cover plate 7, a plurality of first wedge grooves 20 are provided on the upper side of the receiving plate 5, and a first inclined surface 21 in contact with the first wedge groove 20 is provided on one side of the first wedge block 19. When the friction force acting on the cover plate 7 by the car drives the cover plate 7 to slide in the groove 4, the first inclined surface 21 provided on the first wedge block 19 contacts the first wedge groove 20, and converts part of the lateral friction force acting on the cover plate 7 into an upward force, which is offset by the car's own gravity, thereby reducing the influence of the lateral friction force on the reinforcement device when the car passes by, thereby ensuring the stability of the overall structure and extending the service life of the crack 2 of the road bridge 1 after reinforcement.

[0030] Preferably, Figure 1 and Figure 3 As shown, a plurality of second wedge blocks 22 are symmetrically provided at the bottom of the receiving plate 5, a plurality of second wedge grooves 23 are provided on the upper side of the road bridge 1, and a second inclined surface 24 in contact with the second wedge grooves 23 is provided on one side of the second wedge blocks 22. Similarly, part of the force acting on the receiving plate 5 by the cover plate 7 is converted into an upward component force, which is offset by the vehicle's own gravity, thereby reducing the effect of the lateral friction force on the reinforcement device when the vehicle passes by, thereby ensuring the stability of the overall structure and extending the service life of the crack 2 of the road bridge 1 after reinforcement.

[0031] Preferably, Figure 1 and Figure 2 As shown, the road bridge 1 is provided with a plurality of dampers 25, and specific reference may be made to the damper 25 of model ACA0806. The movable end of the damper 25 is in contact with the cover plate 7, and acts as a buffer for the sliding of the cover plate 7 in the groove 4, thereby improving the stability of the overall structure and extending the service life of the road bridge 1 after the crack 2 is reinforced.

[0032] Preferably, Figure 1 As shown, the crack 2 is provided with a plurality of transverse bars 26 and longitudinal bars 27 connected to the road bridge 1 to further compact the filler 3 in the crack 2, improve the stability of the overall structure, and extend the service life of the crack 2 of the road bridge 1 after reinforcement.

[0033] Preferably, Figure 1 and Figure 2 As shown, a pad 28 is provided between the second bolt 12 and the cover plate 7, and a plurality of steel balls 29 are provided on the pad 28, which are in rolling contact with the cover plate 7 and the second bolt 12 at the same time, so as to reduce the friction between the second bolt 12 and the cover plate 7, so that the cover plate 7 can slide relative to the second bolt 12 better, and avoid the friction between the two during the sliding of the cover plate 7 to drive the second bolt 12 to rotate, so that the connection between the second bolt 12 and the fixing plate 6 and the road bridge 1 becomes loose, thereby ensuring the stability of the overall structure and extending the service life of the road bridge 1 after the crack 2 is reinforced.

[0034] Example 1

[0035] The utility model provides a road bridge crack reinforcement device, such as Figure 1 , Figure 2 and Figure 3 As shown, when a crack 2 is generated on a road bridge 1, an excavation tool is used to remove the damaged portion remaining in the crack 2, a deep groove is chiseled out, and then a filler 3 with a bonding effect such as cement mortar, epoxy mortar, asphalt, a reinforcing agent, etc. is embedded in the groove. After the filler 3 solidifies, the preliminary repair is completed; then a groove 4 is excavated around the crack 2, and a receiving plate 5 is placed in the groove 4, so that the receiving plate 5 is in contact with the filler 3 in the crack 2, and the filler 3 in the crack 2 is compacted, thereby reinforcing and protecting the filler 3 to prevent the filler 3 from being damaged in the subsequent The two fixing plates 6 are then placed at both ends of the receiving plate 5, so that the upper protrusion 9 of the fixing plate 6 is above the lower protrusion 8 of the receiving plate 5, and a plurality of first bolts 11 are passed through the countersunk holes 10 and are threadedly connected with the road bridge 1, thereby fixing the fixing plate 6 on the road bridge 1, and the upper protrusion 9 provided at the end of the fixing plate 6 is in contact with the lower protrusion 8 of the receiving plate 5, and the force generated limits the upward and downward movement of the receiving plate 5 relative to the fixing plate 6, so that the receiving plate 5 is fixed between the two fixing plates 6;

[0036] Subsequently, a first spring 14 is arranged between one side of the cover plate 7 and the road bridge 1, and the second bolt 12 is threadedly connected to the fixing plate 6 and the road bridge 1 after passing through the adjustment hole 13, so that the cover plate 7 is arranged above the fixing plate 6 and the receiving plate 5 and covers them, thereby preventing the receiving plate 5 and the fixing plate 6 from directly contacting the vehicle, causing the first bolt 11 fixing the receiving plate 5 and the fixing plate 6 to loosen and fall off, thereby extending the service life of the crack 2 of the road bridge 1 after reinforcement; when the cover plate 7 is in a stationary state, the first spring 14 is in a compressed state, and the rebound force generated by the compression acts on the cover plate 7, so that the other side of the cover plate 7 In contact with the road bridge 1; when the car passes over the cover plate 7 in the reverse direction, the friction force generated by the contact between the two acts on the cover plate 7, and the spring force applied to the cover plate 7 will offset it, preventing the cover plate 7 from sliding significantly relative to the groove 4; when the car passes over the cover plate 7 in the forward direction, the resistance generated by the contact between the cover plate 7 and the road bridge 1 offsets the friction force of the car on the cover plate 7, preventing the cover plate 7 from sliding relative to the groove 4; at the same time, since the second bolt 12 can slide relative to the adjusting groove, it is avoided that an external force is applied to the first bolt 11 during the sliding process of the cover plate 7, thereby improving the stability of the overall structure and extending the service life of the road bridge 1 after the crack 2 is reinforced.

[0037] Example 2

[0038] Based on Example 1, Figure 1 , Figure 2 and Figure 3 As shown, by tightening the first bolt 11 and the second bolt 12, the fixing plate 6, the pressing plate and the cover plate 7 are respectively arranged in the groove 4, and the cover plate 7 contacts the protrusion 15 on the top of the receiving plate 5, so as to apply downward pressure to the middle part of the receiving plate 5, further compacting the filler 3 at the crack 2, ensuring the stability of the overall structure, and extending the service life of the road bridge 1 after the crack 2 is reinforced;

[0039] When the car passes by, the friction force acting on the cover plate 7 drives the cover plate 7 to slide in the groove 4, and the first inclined surface 21 provided on the first wedge block 19 contacts the first wedge groove 20, and converts part of the lateral friction force acting on the cover plate 7 into an upward force, which is offset by the car's own gravity, thereby reducing the impact of the lateral friction force on the reinforcement device when the car passes by, thereby ensuring the stability of the overall structure and extending the service life of the crack 2 of the road bridge 1 after reinforcement; at the same time, part of the lateral force will be transmitted to the receiving portion through the first wedge block 19 On the plate 5, similarly, through the cooperation of the second wedge block 22, the second wedge groove 23 and the second inclined surface 24, part of the force acting on the receiving plate 5 by the cover plate 7 is converted into an upward component force, and offset by the vehicle's own gravity, further reducing the impact of the lateral friction force on the reinforcement device when the vehicle passes by. In addition, the rebound force generated by the compression of the second spring 18 will offset part of the lateral force acting on the receiving plate 5, further reducing the impact of the lateral friction force on the reinforcement device, and extending the service life of the road bridge 1 crack 2 after reinforcement.

[0040] Example 3

[0041] Based on Example 2, Figure 1 , Figure 2 and Figure 3 As shown, a plurality of steel balls 29 provided on the pad 28 are in rolling contact with the cover plate 7 and the second bolt 12 at the same time, so as to reduce the friction between the second bolt 12 and the cover plate 7, so that the cover plate 7 can slide relative to the second bolt 12 better, and avoid the friction between the two during the sliding process of the cover plate 7 to drive the second bolt 12 to rotate, so that the connection between the second bolt 12 and the fixing plate 6 and the road bridge 1 is loosened, thereby ensuring the stability of the overall structure and extending the service life of the road bridge 1 after the crack 2 is reinforced;

[0042] In addition, the piston 17 provided at the end of the slide rod 16 slides in the fixed plate 6, which has a damping effect on the sliding of the receiving plate 5 between the fixed plates 6, preventing the receiving plate 5 from rocking back and forth between the fixed plates 6 due to the rebound force of the second spring 18. At the same time, a plurality of dampers 25 are provided on the road bridge 1, and the movable ends of the dampers 25 are in contact with the cover plate 7, thereby buffering the sliding of the cover plate 7 in the groove 4, preventing the cover plate 7 from rocking back and forth in the groove 4 due to the rebound force of the second spring 18, thereby improving the stability of the overall structure and extending the service life of the road bridge 1 after the crack 2 is reinforced.

Claims

1. A road bridge crack reinforcement device, comprising a filler (3) filled in a crack (2) of a road bridge (1), characterized in that: The road bridge (1) is provided with a groove (4) connected to the crack (2), a receiving plate (5) in contact with the filler (3) is provided in the groove (4), and further comprises a fixing plate (6) symmetrically arranged at both ends of the groove (4), and a cover plate (7) arranged above the fixing plate (6) and covering the fixing plate (6) and the receiving plate (5), lower protrusions (8) are provided at both ends of the receiving plate (5), an upper protrusion (9) in contact with the lower protrusion (8) is provided at the end of the fixing plate (6), and a countersunk hole is provided on the fixing plate (6). The invention relates to a cover plate (7) comprising a first bolt (10) and a first bolt (11), wherein the first bolt (11) is threadedly connected to the road bridge (1) after passing through the countersunk hole (10), and further comprising a plurality of second bolts (12), and a plurality of adjustment holes (13) arranged at both ends of the cover plate (7), wherein the second bolts (12) are threadedly connected to the fixing plate (6) and the road bridge (1) after passing through the adjustment holes (13), respectively, one side of the cover plate (7) is in contact with the road bridge (1), and a first spring (14) is arranged between the other side of the cover plate (7) and the road bridge (1).

2. A road bridge crack reinforcement device according to claim 1, characterized in that: The top of the receiving plate (5) is provided with a protrusion (15) which contacts the cover plate (7).

3. A road bridge crack reinforcement device according to claim 1, characterized in that: The receiving plate (5) is slidably arranged between the two fixed plates (6), and sliding rods (16) are respectively arranged at both ends of the receiving plate (5). The end of the sliding rod (16) is provided with a piston (17) slidably connected to the fixed plate (6), and the outer side of the sliding rod (16) is sleeved with a second spring (18), and the second spring (18) is arranged between the fixed plate (6) and the receiving plate (5).

4. According to the road bridge crack reinforcement device according to claim 1, a plurality of first wedge blocks (19) are symmetrically provided at the bottom of the cover plate (7), a plurality of first wedge grooves (20) are provided on the upper side of the receiving plate (5), and a first inclined surface (21) in contact with the first wedge groove (20) is provided on one side of the first wedge block (19).

5. According to the road bridge crack reinforcement device as described in claim 1, a plurality of second wedge blocks (22) are symmetrically provided at the bottom of the receiving plate (5), a plurality of second wedge grooves (23) are provided on the upper side of the road bridge (1), and a second inclined surface (24) in contact with the second wedge groove (23) is provided on one side of the second wedge block (22).

6. A road bridge crack reinforcement device according to claim 1, wherein a plurality of dampers (25) are provided on the road bridge (1), and the movable ends of the dampers (25) are in contact with the cover plate (7).

7. A road bridge crack reinforcement device according to claim 1, wherein the crack (2) is provided with a plurality of transverse bars (26) and longitudinal bars (27) connected to the road bridge (1).

8. According to the road bridge crack reinforcement device according to claim 1, a cushion block (28) is provided between the second bolt (12) and the cover plate (7), and the cushion block (28) is provided with a plurality of steel balls (29) that are in rolling contact with the cover plate (7) and the second bolt (12) at the same time.

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