Bridge cutting demolition concrete block recycling device and recycling method thereof
By installing recycling devices on the bridge and using anti-collision and rebound devices to collect the concrete fragments that fell during the bridge demolition process, the safety hazards under the bridge were solved, and safe and efficient recycling of concrete fragments was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUXI HANGDAO ENG CO LTD
- Filing Date
- 2024-01-31
- Publication Date
- 2026-08-04
AI Technical Summary
During the bridge demolition process, fragments of concrete falling from the cutting joints will raise the riverbed and pose a safety hazard to ships passing under the bridge, endangering lives and property.
Design a bridge demolition debris concrete recycling device, including a recycling shell, an anti-collision device, a rebound device, and a protective device. By being fixedly installed on the bridge, the anti-collision device catches and rebounds the falling debris concrete, which rebounds to the rebound device and enters the recycling chamber, and finally falls onto the protective device, thus achieving collection and recycling.
This effectively prevents fallen concrete fragments from raising the riverbed and endangering ship safety, ensuring the safety of personnel and property, and achieving stable recycling of concrete fragments.
Smart Images
Figure CN117988256B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of bridge cutting and demolition technology, and in particular to a device and method for recycling concrete fragments from bridge cutting and demolition. Background Technology
[0002] Huangshi Bridge is located on Guangshi Road at the border of Liangxi District and Huishan District in Wuxi City, connecting Huangxiang Town and Luoshe Town, and spanning the Xicheng Canal. This section of the waterway is a Class V inland waterway with a designed maximum navigable water level of 2.907m. The water surface width at the bridge site is about 70m, and the centerline of the bridge intersects the centerline of the waterway at a 65° angle. Huangshi Bridge was built in 2000 and opened to traffic in 2001. Over time, Huangshi Bridge has completed its mission and needs to be demolished.
[0003] The demolition scope of Huangshi Bridge includes: removal of bridge deck railings, sidewalks, roadway pavement, roadway slabs, central crossbeams, end crossbeams, wind bracing, tie beams, arch ribs, bridge piers, and underwater cast-in-place piles. Among these, the roadway slabs need to be cut and then removed piece by piece during demolition.
[0004] During the cutting process, fragments of concrete will fall from the cutting seam under the bridge. These fragments will not only raise the riverbed, but also pose a safety hazard to ships passing under the bridge, and in severe cases, endanger people's lives and property.
[0005] Based on this, the present invention designs a bridge cutting and demolition debris concrete recycling device and recycling method to solve the above problems. Summary of the Invention
[0006] Technical problems to be solved:
[0007] To address the shortcomings of existing technologies, this invention provides a bridge cutting and demolition debris concrete recycling device and method, in order to solve the problem mentioned in the background art where debris concrete falls from the cutting seam under the bridge during the cutting process. This debris concrete not only raises the riverbed but also poses a safety hazard to ships passing normally under the bridge, and in severe cases, endangers people's lives and property.
[0008] Technical solution:
[0009] To achieve the above objectives, the present invention provides the following technical solution:
[0010] A bridge demolition debris concrete recycling device includes a recycling device fixedly installed on the bridge via a connector. The recycling device includes a recycling shell fixedly installed at the free end of the connector. A bottom plate is installed inside the recycling shell, and a support is installed on the upper side of the bottom plate. An anti-collision device and a collision avoidance device are provided on the support. The anti-collision device divides the inner cavity of the recycling shell into an impact chamber and a retraction chamber. The impact chamber is located above the anti-collision device, and the retraction chamber is located on both sides of the anti-collision device. Rebound devices are provided on both sides of the impact chamber, and a protective device is provided on the bottom surface of the retraction chamber.
[0011] The anti-collision device is used to catch the concrete fragments that fall during the cutting process of the bridge and bounce the concrete fragments back onto the bounce device. The bounce device bounces the concrete fragments back into the recovery chamber. The protective device is used to depressurize the concrete fragments and prevent them from impacting the bottom surface of the recovery chamber.
[0012] In one possible implementation, the anti-collision device includes a rotating base, an anti-collision plate, a first anti-collision layer, a connecting mechanism, and a shock-absorbing mechanism, wherein: the rotating base is fixedly mounted on the support; two anti-collision plates are provided and rotatably connected to the rotating base via a rotating shaft; the first anti-collision layer is disposed on the upper surface of the anti-collision plate and is used to protect the anti-collision plate; the connecting mechanism is installed on the side of the anti-collision plate away from the rotating base and located below the anti-collision plate; the shock-absorbing mechanism is fixedly mounted on the base plate and fixedly connected to the connecting mechanism, and the shock-absorbing mechanism extends and retracts in the vertical direction; under the impact force of the broken concrete, the anti-collision plate rotates along the rotating base and transmits the impact force of the broken concrete to the shock-absorbing mechanism through the connecting mechanism, and the shock-absorbing mechanism counteracts the impact force of the broken concrete by vertical extension and retraction.
[0013] In one possible implementation, the connecting mechanism allows the shock-absorbing mechanism to extend and retract vertically during the rotation of the anti-collision plate to counteract the impact force of the broken concrete. The connecting mechanism includes a support base, a sliding rod, a slider, and a lifting rod, wherein: two support bases are provided and fixedly installed on the bottom surface of the anti-collision plate away from the rotating seat, and the support bases are used to support the sliding rod; the sliding rod is fixedly installed between the two support bases and is used to support the slider; the slider is slidably connected to the sliding rod and rotatably connected to the lifting rod; one end of the lifting rod is rotatably connected to the slider, and the other end is fixedly connected to the shock-absorbing mechanism, and is used to transmit the impact force of the broken concrete to the shock-absorbing mechanism.
[0014] In one possible implementation, the damping mechanism includes a damping tube, a damping column, a third spring, a limiting block, a damper, and a fourth spring, wherein: two damping tubes are provided and installed on the base plate and the lifting rod; the two ends of the damping column are respectively inserted into the two damping tubes and fixedly connected to the limiting blocks; two limiting blocks are provided and slidably connected to the two damping tubes respectively; the third spring is sleeved on the damping column and located between the two damping tubes; the damper is fixedly installed between the inner wall of the damping tube and the limiting block; the fourth spring is sleeved outside the damper and located between the inner wall of the damping tube and the limiting block.
[0015] In one possible implementation, the anti-collision device is installed above the rotating base and is used to catch concrete fragments falling onto the rotating base. The anti-collision device includes an anti-collision shell, a lifting cavity, a lifting block, a first spring, a connecting rod, an anti-collision protrusion, and a second anti-collision layer, wherein: the anti-collision shell is fixedly installed on the rotating base; the lifting cavity is formed inside the anti-collision shell; the lifting block is slidably connected inside the lifting cavity and is used to drive the connecting rod; the first spring is fixedly installed between the bottom surface of the lifting block and the inner wall of the lifting cavity and is used to drive the lifting block; one end of the connecting rod is fixedly installed on the top surface of the lifting block, and the other end extends out of the lifting cavity to the outside of the anti-collision shell; the anti-collision protrusion is fixedly installed on the free end of the connecting rod, and its top surface is a hemispherical surface to bounce concrete fragments falling onto the rotating base to the side; the second anti-collision layer is disposed on the top surface of the anti-collision protrusion and is used to protect the anti-collision protrusion.
[0016] In one possible implementation, the rebound device includes a rebound shell, which is divided into a vertical plate and an inclined plate. Both the vertical plate and the inclined plate of the rebound shell are provided with rebound mechanisms to receive the fragmented concrete rebounded from the anti-collision device and the anti-collision device. Both ends of the rebound shell are fixedly installed on the recycling shell by the fixing base.
[0017] In one possible implementation, the vertical plate and the inclined plate of the rebound shell are each provided with a telescopic cavity. The rebound mechanism includes a telescopic plate, a plug rod, a second spring, a telescopic rod, a rebound plate, and a third anti-collision layer, wherein: the telescopic plate is slidably connected inside the telescopic plate and is used to drive the plug rod; the plug rod is provided in a plurality of positions, with one end evenly mounted on the telescopic plate and the other end extending out of the telescopic cavity to the outside of the rebound shell; the telescopic rod is provided in a plurality of positions, with one end evenly mounted on the telescopic plate and the other end slidably inserted into the rebound shell; the second spring is sleeved on the telescopic rod and is located between the telescopic plate and the inner wall of the telescopic cavity; the rebound plate is fixedly mounted on the free end of the telescopic rod and is used to receive the fragmented concrete rebounded by the anti-collision device and the anti-collision device; the third anti-collision layer is installed on the rebound plate and is used to protect the rebound plate.
[0018] In one possible implementation, the protective device includes a protective plate, a fourth anti-collision layer, and a fifth spring. The protective plate is slidably connected within the retraction cavity and is used to receive fragments of concrete entering the retraction cavity. The fourth anti-collision layer is disposed on the upper surface of the protective plate and is used to protect the protective plate. The fifth spring is installed between the protective plate and the bottom surface of the retraction cavity.
[0019] In one possible implementation, the concrete fragments that fall during the cutting of the bridge's seams enter the impact chamber, impact the anti-collision device and the anti-collision device, then bounce off the rebound device, enter the retraction chamber, and finally fall onto the protective device.
[0020] Beneficial effects:
[0021] The recycling device in this invention can collect and recycle concrete fragments that fall from the cutting seams during bridge cutting. This not only prevents the falling concrete fragments from raising the riverbed, but also prevents them from posing a safety hazard to ships passing under the bridge and endangering people's lives and property.
[0022] In this invention, the recycling device is fixedly installed on the bridge via connectors. The connectors can be adjusted according to the actual conditions of the bridge to ensure that the recycling device is stably installed on the bridge. The anti-collision device and anti-collision device can withstand the impact force of the concrete fragments falling during the cutting process of the bridge and bounce the falling concrete fragments back onto the rebound device. The anti-collision device and anti-collision device prevent the concrete fragments from leaving the impact chamber due to the rebound, thus playing a role in collecting the concrete fragments. The recycling chamber is located on both sides of the bottom plate. The rebound device can not only bear the concrete fragments bounced back by the anti-collision device and anti-collision device, but also protect the inner wall of the recycling shell to prevent the concrete fragments from impacting the inner wall of the recycling shell. The protective device can protect the bottom surface of the recycling chamber to prevent the concrete fragments from directly impacting the bottom surface of the recycling chamber. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0024] Figure 2 This is a schematic diagram of the recycling device in this invention;
[0025] Figure 3 This is a schematic diagram of the anti-collision device in this invention;
[0026] Figure 4 This is a schematic diagram of the rebound device in this invention;
[0027] Figure 5 This is a schematic diagram of the anti-collision device in this invention;
[0028] Figure 6 for Figure 2 Enlarged view of point A in the middle;
[0029] Figure 7 for Figure 4 Enlarged view of point B in the middle;
[0030] Figure 8 for Figure 3 Enlarged view of point C in the middle.
[0031] Legend: 1. Bridge; 11. Cutting seam; 2. Connector; 3. Recovery shell; 31. Base plate; 32. Support; 33. Impact chamber; 34. Recovery chamber; 4. Anti-collision device; 41. Rotating seat; 42. Anti-collision plate; 43. First anti-collision layer; 44. Support seat; 45. Sliding rod; 46. Sliding block; 47. Lifting rod; 5. Anti-collision device; 51. Anti-collision shell; 52. Lifting chamber; 53. Lifting block; 54. First spring; 55. Connecting rod; 56. Anti-collision protrusion; 57. Second anti-collision layer; 6. Rebound device; 61. Rebound shell; 62. Fixed base; 63. Telescopic cavity; 64. Telescopic plate; 65. Insert rod; 66. Second spring; 67. Telescopic rod; 68. Rebound plate; 69. Third anti-collision layer; 7. Shock absorption mechanism; 71. Shock absorption tube; 72. Shock absorption column; 73. Third spring; 74. Limiting block; 75. Damper; 76. Fourth spring; 8. Protective device; 81. Protective plate; 82. Fourth anti-collision layer; 83. Fifth spring. Detailed Implementation
[0032] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.
[0033] Please refer to the following: A device for recycling concrete debris from bridge demolition. Figures 1-8 The device includes a recovery unit, which is fixedly installed on the bridge 1 via a connector 2. The recovery unit includes a recovery shell 3 fixedly installed on the free end of the connector 2. A base plate 31 is installed inside the recovery shell 3. A support 32 is installed on the upper side of the base plate 31. An anti-collision device 4 and an anti-collision device 5 are provided on the support 32. The anti-collision device 4 divides the inner cavity of the recovery shell 3 into an impact chamber 33 and a retraction chamber 34. The impact chamber 33 is located above the anti-collision device 4, and the retraction chamber 34 is located on both sides of the anti-collision device 4. Rebound devices 6 are provided on both sides of the impact chamber 33, and a protective device 8 is provided on the bottom surface of the retraction chamber 34.
[0034] The anti-collision device 4 is used to catch the concrete fragments that fall during the cutting process of the cutting joint 11 of the bridge 1 and bounce the concrete fragments onto the rebound device 6. The rebound device 6 bounces the concrete fragments into the recovery chamber 34. The protective device 8 is used to depressurize the concrete fragments and prevent them from hitting the bottom of the recovery chamber 34.
[0035] Through the above technical solution, the recycling device in this invention can collect and recycle the concrete fragments that fall from the cutting joint 11 during the cutting of the bridge 1. This not only prevents the fallen concrete fragments from raising the riverbed, but also prevents the fallen concrete fragments from causing safety hazards to ships passing normally under the bridge, thus avoiding endangering people's lives and property.
[0036] In some examples, refer to Figure 1-8 As shown, the concrete fragments that fall during the cutting of the bridge 1 through the cutting seam 11 enter the impact chamber 33 and then impact the anti-collision device 4 and the anti-collision device 5. They then bounce off the rebound device 6, enter the retraction chamber 34, and finally fall onto the protective device 8.
[0037] Through the above technical solution, the recycling device is fixedly installed on the bridge 1 by the connector 2. The connector 2 can be adjusted according to the actual situation of the bridge 1 to ensure that the recycling device is stably installed on the bridge 1. The anti-collision device 4 and the anti-collision device 5 can withstand the impact force of the concrete fragments falling during the cutting of the cutting seam 11 of the bridge 1 and bounce the falling concrete fragments onto the rebound device 6. The setting of the anti-collision device 4 and the anti-collision device 5 ensures that the concrete fragments will not leave the impact chamber 33 due to the rebound, and can play the role of collecting the concrete fragments. The recovery chamber 34 is located on both sides of the bottom plate 31. The rebound device 6 can not only bear the concrete fragments bounced from the anti-collision device 4 and the anti-collision device 5, but also protect the inner wall of the recovery shell 3 to prevent the concrete fragments from hitting the inner wall of the recovery shell 3. The protective device 8 can protect the bottom surface of the recovery chamber 34 to prevent the concrete fragments from directly hitting the bottom surface of the recovery chamber 34.
[0038] In some examples, refer to Figure 1-8As shown, the anti-collision device 4 includes a rotating seat 41, an anti-collision plate 42, a first anti-collision layer 43, a connecting mechanism, and a shock-absorbing mechanism 7. The rotating seat 41 is fixedly mounted on the support 32. Two anti-collision plates 42 are rotatably connected to the rotating seat 41 via a rotating shaft. The first anti-collision layer 43 is disposed on the upper surface of the anti-collision plate 42 and is used to protect the anti-collision plate 42. The connecting mechanism is installed on the side of the anti-collision plate 42 away from the rotating seat 41 and located below the anti-collision plate 42. The shock-absorbing mechanism 7 is fixedly mounted on the base plate 31 and fixedly connected to the connecting mechanism. The shock-absorbing mechanism 7 extends and retracts vertically. Under the impact force of the broken concrete, the anti-collision plate 42 rotates along the rotating seat 41 and transmits the impact force of the broken concrete to the shock-absorbing mechanism 7 via the connecting mechanism. The shock-absorbing mechanism 7 counteracts the impact force of the broken concrete through vertical extension and retraction.
[0039] Through the above technical solution, in this invention, when the anti-collision plate 42 is impacted by falling concrete fragments, the impact force is transmitted to the shock-absorbing mechanism 7 via the rotating shaft along the rotating seat 41 during rotation. This reduces the impact force borne by the anti-collision plate 42 and protects it. At the same time, in conjunction with the first anti-collision layer 43, it can effectively prevent concrete fragments from damaging the anti-collision plate 42. Since the anti-collision plate 42 rotates along the rotating seat 41, the concrete fragments will not leave the impact cavity 33 under the rebound force on the anti-collision plate 42, but will rebound onto the rebound device 6, effectively collecting the concrete fragments. The shock-absorbing mechanism 7 can offset the impact force of the concrete fragments through vertical extension and contraction, reducing the impact force borne by the concrete fragments on the anti-collision plate 42.
[0040] In some examples, refer to Figure 1-8 As shown, the connecting mechanism allows the shock-absorbing mechanism 7 to extend and retract vertically during the rotation of the anti-collision plate 42, thereby offsetting the impact force of the broken concrete. The connecting mechanism includes a support base 44, a sliding rod 45, a slider 46, and a lifting rod 47. Specifically: two support bases 44 are provided and fixedly installed on the bottom surface of the anti-collision plate 42 away from the rotating seat 41, and the support bases 44 are used to support the sliding rod 45; the sliding rod 45 is fixedly installed between the two support bases 44 and is used to support the slider 46; the slider 46 is slidably connected to the sliding rod 45 and rotatably connected to the lifting rod 47; one end of the lifting rod 47 is rotatably connected to the slider 46, and the other end is fixedly connected to the shock-absorbing mechanism 7, and is used to transmit the impact force of the broken concrete to the shock-absorbing mechanism 7.
[0041] Through the above technical solution, the connecting mechanism in this invention allows the shock-absorbing mechanism 7 to extend and retract vertically during the rotation of the anti-collision plate 42, so as to offset the impact force of the broken concrete. During the rotation of the anti-collision plate 42, the slider 46 will slide along the inclined sliding rod 45, and at the same time the lifting rod 47 will rotate along the slider 46, so that the lifting rod 47 always maintains a vertical state and compresses the shock-absorbing mechanism 7, so that the shock-absorbing mechanism 7 can offset the impact force of the broken concrete through vertical extension and retraction.
[0042] In some examples, refer to Figure 1-8 As shown, the damping mechanism 7 includes a damping tube 71, a damping column 72, a third spring 73, a limiting block 74, a damper 75, and a fourth spring 76. Specifically: two damping tubes 71 are provided and installed on the base plate 31 and the lifting rod 47; the two ends of the damping column 72 are respectively inserted into the two damping tubes 71 and fixedly connected to the limiting block 74; two limiting blocks 74 are provided and slidably connected to the two damping tubes 71 respectively; the third spring 73 is sleeved on the damping column 72 and located between the two damping tubes 71; the damper 75 is fixedly installed between the inner wall of the damping tube 71 and the limiting block 74; the fourth spring 76 is sleeved outside the damper 75 and located between the inner wall of the damping tube 71 and the limiting block 74.
[0043] Through the above technical solution, during the compression and damping mechanism 7 of the lifting rod 47 in this invention, the two sides of the damping column 72 are connected to the damper 75 and the fourth spring 76 through the limiting block 74. Under the action of the damper 75 and the fourth spring 76, the impact force is absorbed and stable sliding is maintained without deviation. At the same time, the limiting block 74 controls the vibration amplitude of the lifting rod 47 and prevents excessive amplitude. The third spring 73 can further absorb the impact force of the broken concrete on the basis of the damper 75 and the fourth spring 76.
[0044] In some examples, refer to Figure 1-8 As shown, the anti-collision device 5 is installed above the rotating seat 41 and is used to catch concrete fragments falling onto the rotating seat 41. The anti-collision device 5 includes an anti-collision shell 51, a lifting cavity 52, a lifting block 53, a first spring 54, a connecting rod 55, an anti-collision protrusion 56, and a second anti-collision layer 57. Specifically: the anti-collision shell 51 is fixedly installed on the rotating seat 41; the lifting cavity 52 is formed inside the anti-collision shell 51; the lifting block 53 is slidably connected inside the lifting cavity 52 and is used to drive the connecting rod 55; the first spring 54... Spring 54 is fixedly installed between the bottom surface of lifting block 53 and the inner wall of lifting cavity 52, and is used to drive lifting block 53; one end of connecting rod 55 is fixedly installed on the top surface of lifting block 53, and the other end extends out of lifting cavity 52 to the outside of anti-collision shell 51; anti-collision protrusion 56 is fixedly installed on the free end of connecting rod 55, and the top surface is a hemispherical surface, so as to bounce the fragments of concrete falling above rotating seat 41 to the side; second anti-collision layer 57 is provided on the top surface of anti-collision protrusion 56 and is used to protect anti-collision protrusion 56.
[0045] Through the above technical solution, the top surface of the anti-collision protrusion 56 in this invention is designed as a hemispherical surface, which can cause the falling concrete fragments to bounce in the direction of the side rebound device 6, so that they will not leave the impact chamber 33, effectively collecting the concrete fragments; the anti-collision protrusion 56 transmits the impact force of the concrete fragments to the first spring 54 through the connecting rod 55 and the lifting block 53, and the first spring 54 absorbs the impact force of the concrete fragments; the setting of the second anti-collision layer 57 can protect the anti-collision protrusion 56.
[0046] In some examples, refer to Figure 1-8 As shown, the rebound device 6 includes a rebound shell 61, which is divided into a vertical plate and an inclined plate. Both the vertical plate and the inclined plate of the rebound shell 61 are equipped with rebound mechanisms to catch the broken concrete pieces rebounded from the anti-collision device 4 and the anti-collision device 5. The two ends of the rebound shell 61 are fixedly installed on the recovery shell 3 through the fixing seat 62.
[0047] Through the above technical solution, the vertical plate and inclined plate of the rebound shell 61 in this invention can withstand the concrete fragments rebounding from the anti-collision device 4 and the anti-collision device 5 in different directions, and effectively protect the inner wall of the recovery shell 3; the rebound shell 61 is fixedly installed on the recovery shell 3 by the fixing seat 62; the rebound mechanism is used to withstand the impact force of the concrete fragments, and at the same time rebound the concrete fragments onto the protective device 8 in the recovery cavity 34.
[0048] In some examples, refer to Figure 1-8 As shown, the vertical plate and inclined plate of the rebound shell 61 are provided with telescopic cavities 63. The rebound mechanism includes a telescopic plate 64, a plug rod 65, a second spring 66, a telescopic rod 67, a rebound plate 68, and a third anti-collision layer 69. Specifically: the telescopic plate 64 is slidably connected inside the telescopic plate 64 and is used to drive the plug rod 65; the plug rod 65 is provided in several pieces, with one end evenly installed on the telescopic plate 64 and the other end extending out of the telescopic cavity 63 to the outside of the rebound shell 61; the telescopic rod 67 is provided in several pieces, with one end evenly installed on the telescopic plate 64 and the other end slidably inserted into the rebound shell 61; the second spring 66 is sleeved on the telescopic rod 67 and is located between the telescopic plate 64 and the inner wall of the telescopic cavity 63; the rebound plate 68 is fixedly installed on the free end of the telescopic rod 67 and is used to receive the broken concrete pieces rebounded by the anti-collision device 4 and the anti-collision device 5; the third anti-collision layer 69 is installed on the rebound plate 68 and is used to protect the rebound plate 68.
[0049] Through the above technical solution, the rebound plate 68 in this invention not only rebounds the concrete fragments rebounded from the anti-collision device 4 and the anti-collision device 5 in different directions onto the protective device 8, but also transmits the impact force of the concrete fragments to the second spring 66 through the insert rod 65 and the telescopic plate 64. The second spring 66 can absorb the impact force of the concrete fragments and reduce the damage of the concrete fragments to the rebound plate 68. The third anti-collision layer 69 can also withstand part of the impact force of the concrete fragments and protect the rebound plate 68.
[0050] In some examples, refer to Figure 1-8 As shown, the protective device 8 includes a protective plate 81, a fourth anti-collision layer 82 and a fifth spring 83. The protective plate 81 is slidably connected in the retraction cavity 34 and is used to receive the broken concrete pieces entering the retraction cavity 34. The fourth anti-collision layer 82 is provided on the upper surface of the protective plate 81 and is used to protect the protective plate 81. The fifth spring 83 is installed between the protective plate 81 and the bottom surface of the retraction cavity 34.
[0051] Through the above technical solution, after the fragmented concrete falls onto the protective plate 81 via the rebound device 6, the protective plate 81 transmits the impact force of the fragmented concrete to the fifth spring 83. The fifth spring 83 can withstand the impact force of the fragmented concrete and prevent the fragmented concrete from damaging the protective plate 81. The fourth anti-collision layer 82 can also withstand part of the impact force of the fragmented concrete and protect the protective plate 81. The protective plate 81 can protect the bottom surface of the retraction cavity 34 and prevent the fragmented concrete from damaging the bottom surface of the retraction cavity 34.
[0052] Working principle of the invention:
[0053] During the cutting process of the cutting joint 11 of bridge 1, the concrete fragments that fall into the impact chamber 33 first impact the anti-collision device 4 and the anti-collision device 5. After the anti-collision device 4 and the anti-collision device 5 withstand the impact force of the concrete fragments, they bounce the concrete fragments onto the rebound device 6. After the rebound device 6 withstands the impact force of the concrete fragments, it bounces the concrete fragments onto the protective device 8, thus completing the collection and recycling of the concrete fragments.
[0054] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.
Claims
1. A bridge demolition debris concrete recycling device, comprising a recycling device, wherein the recycling device is fixedly installed on a bridge (1) via a connector (2), characterized in that: The recycling device includes a recycling shell (3) fixedly installed at the free end of the connector (2). A base plate (31) is installed in the inner cavity of the recycling shell (3). A support (32) is installed on the upper side of the base plate (31). An anti-collision device (4) and an anti-collision device (5) are provided on the support (32). The anti-collision device (4) divides the inner cavity of the recycling shell (3) into an impact chamber (33) and a recovery chamber (34). The impact chamber (33) is located above the anti-collision device (4). The recovery chamber (34) is located on both sides of the anti-collision device (4). A rebound device (6) is provided on both sides of the impact chamber (33). A protective device (8) is provided on the bottom surface of the recovery chamber (34). The anti-collision device (4) is used to receive the concrete fragments that fall during the cutting process of the cutting joint (11) of the bridge (1) and bounce the concrete fragments back onto the rebound device (6). The rebound device (6) bounces the concrete fragments back into the recovery chamber (34). The protective device (8) is used to depressurize the concrete fragments and prevent the concrete fragments from hitting the bottom surface of the recovery chamber (34). The anti-collision device (4) includes a rotating seat (41), an anti-collision plate (42), a first anti-collision layer (43), a connecting mechanism, and a shock absorption mechanism (7), wherein: The rotating seat (41) is fixedly installed on the support (32); Two anti-collision plates (42) are provided and are rotatably connected to the rotating seat (41) via a rotating shaft; The first anti-collision layer (43) is disposed on the upper surface of the anti-collision plate (42) and is used to protect the anti-collision plate (42). The connecting mechanism is installed on the side of the anti-collision plate (42) away from the rotating seat (41) and located below the anti-collision plate (42); The shock absorption mechanism (7) is fixedly installed on the base plate (31) and fixedly connected to the connecting mechanism. The shock absorption mechanism (7) extends and retracts in the vertical direction. The anti-collision plate (42) rotates along the rotating seat (41) under the impact force of the broken concrete, and transmits the impact force of the broken concrete to the shock absorption mechanism (7) through the connecting mechanism. The shock absorption mechanism (7) offsets the impact force of the broken concrete by vertical extension and contraction. The connecting mechanism allows the shock-absorbing mechanism (7) to extend and retract vertically during the rotation of the anti-collision plate (42) to counteract the impact force of the broken concrete. The connecting mechanism includes a support base (44), a sliding rod (45), a slider (46), and a lifting rod (47), wherein: The support base (44) is provided in two and is fixedly installed on the bottom surface of the anti-collision plate (42) away from the rotating seat (41). The support base (44) is used to support the slide rod (45). The slide bar (45) is fixedly installed between the two support seats (44) and is used to support the slider (46). The slider (46) is slidably connected to the slide rod (45) and rotatably connected to the lifting rod (47); One end of the lifting rod (47) is rotatably connected to the slider (46), and the other end is fixedly connected to the shock absorption mechanism (7), and is used to transmit the impact force of the broken concrete to the shock absorption mechanism (7); The anti-collision device (5) is installed above the rotating seat (41) and is used to catch the concrete fragments falling onto the rotating seat (41). The anti-collision device (5) includes an anti-collision shell (51), a lifting cavity (52), a lifting block (53), a first spring (54), a connecting rod (55), an anti-collision protrusion (56), and a second anti-collision layer (57), wherein: The anti-collision shell (51) is fixedly installed on the rotating seat (41), and the lifting cavity (52) is opened inside the anti-collision shell (51); The lifting block (53) is slidably connected in the lifting cavity (52) and is used to drive the connecting rod (55). The first spring (54) is fixedly installed between the bottom surface of the lifting block (53) and the inner wall of the lifting cavity (52), and is used to drive the lifting block (53). One end of the connecting rod (55) is fixedly installed on the top surface of the lifting block (53), and the other end extends out of the lifting cavity (52) to the outside of the anti-collision shell (51); The anti-collision protrusion (56) is fixedly installed at the free end of the connecting rod (55), and the top surface is a hemispherical surface, so as to bounce the fragments of concrete that fall above the rotating seat (41) to the side. The second anti-collision layer (57) is disposed on the top surface of the anti-collision protrusion (56) and is used to protect the anti-collision protrusion (56). The protective device (8) includes a protective plate (81), a fourth anti-collision layer (82) and a fifth spring (83). The protective plate (81) is slidably connected in the retraction cavity (34) and is used to receive the broken concrete pieces entering the retraction cavity (34). The fourth anti-collision layer (82) is disposed on the upper surface of the protective plate (81) and is used to protect the protective plate (81). The fifth spring (83) is installed between the protective plate (81) and the bottom surface of the retraction cavity (34).
2. The bridge cutting and demolition debris concrete recycling device according to claim 1, characterized in that: The damping mechanism (7) includes a damping tube (71), a damping column (72), a third spring (73), a limiting block (74), a damper (75), and a fourth spring (76), wherein: Two shock absorber tubes (71) are provided and installed on the base plate (31) and the lifting rod (47); The shock-absorbing column (72) is inserted into the two shock-absorbing tubes (71) at both ends and is fixedly connected to the limiting block (74); Two limiting blocks (74) are provided and are slidably connected in the two damping tubes (71); The third spring (73) is sleeved on the damping column (72) and located between the two damping tubes (71); The damper (75) is fixedly installed between the inner wall of the shock absorber tube (71) and the limiting block (74); The fourth spring (76) is sleeved outside the damper (75) and is located between the inner wall of the shock absorber tube (71) and the limiting block (74).
3. The bridge cutting and demolition debris concrete recycling device according to claim 1, characterized in that: The rebound device (6) includes a rebound shell (61), which is divided into a vertical plate and an inclined plate. Both the vertical plate and the inclined plate of the rebound shell (61) are provided with a rebound mechanism to receive the broken concrete pieces rebounded from the anti-collision device (4) and the anti-collision device (5). The two ends of the rebound shell (61) are fixedly installed on the recycling shell (3) by fixing seats (62).
4. The bridge cutting and demolition debris concrete recycling device according to claim 3, characterized in that: The rebound shell (61) has telescopic cavities (63) on both its vertical and inclined plates. The rebound mechanism includes a telescopic plate (64), a plug rod (65), a second spring (66), a telescopic rod (67), a rebound plate (68), and a third anti-collision layer (69), wherein: The telescopic plate (64) is slidably connected inside the telescopic plate (64) and is used to drive the insertion rod (65). The insertion rod (65) is provided with several of them, one end of which is evenly installed on the telescopic plate (64), and the other end extends out of the telescopic cavity (63) to the outside of the rebound shell (61); The telescopic rod (67) is provided in several parts, with one end evenly installed on the telescopic plate (64) and the other end slidably inserted into the rebound shell (61); The second spring (66) is sleeved on the telescopic rod (67) and located between the telescopic plate (64) and the inner wall of the telescopic cavity (63); The rebound plate (68) is fixedly installed at the free end of the telescopic rod (67) and is used to receive the broken concrete pieces rebounded by the anti-collision device (4) and the anti-collision device (5); The third anti-collision layer (69) is installed on the rebound plate (68) and is used to protect the rebound plate (68).
5. A method for recycling concrete fragments from bridge demolition, performed using a concrete recycling device based on any one of claims 1-4, characterized in that: During the cutting process of the bridge (1) cutting the cutting seam (11), the concrete fragments that fall off enter the impact chamber (33) and then impact the anti-collision device (4) and the anti-collision device (5), then bounce back to the rebound device (6), then enter the retraction chamber (34) and finally fall onto the protective device (8).