A detachable bridge shore device

Abstract

This utility model discloses a detachable bridge support device, belonging to the field of bridge construction. It includes an outer sleeve and an inner sleeve that are nested together. The inner sleeve can move precisely and stably up and down on the outer sleeve via a hydraulic mechanism. The bottom of the outer sleeve and the top of the inner sleeve are detachably connected to the lower and upper abutments of the bridge via a support base plate and a support bracket, respectively. A shock-absorbing component is provided at the connection between the outer sleeve and the inner sleeve, and a guide locking component is provided between them. The hydraulic mechanism includes a hydraulic cylinder arranged along the axis of the outer and inner sleeves. The cylinder barrel and piston rod of the hydraulic cylinder are rigidly connected to the outer sleeve and the inner sleeve via a mounting base plate and a mounting top plate, respectively. This detachable bridge support device achieves stepless and precise adjustment of the support device through a hydraulic mechanism, thereby adapting to different beam heights, geological settlement, or rotation posture adjustment needs.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a detachable bridge support device. Background Technology

[0002] In modern bridge construction, bridge rotation technology is widely used due to its unique advantages, especially in scenarios such as crossing deep water areas, high mountain valleys, existing railways, or busy highways. It transforms spatial construction along the bridge axis into more favorable conditions for construction along the shoreline or on the ground, effectively ensuring the safety, quality, and progress of bridge construction under special conditions. In bridge rotation construction, the support structure is an indispensable component. During the rotation process, the support structure acts as a crucial safety device, preventing the bridge from overturning due to accidental imbalance; after the rotation is completed, it further enhances the bridge's resistance to overturning.

[0003] However, traditional bridge support devices have many limitations. Traditional support devices have a fixed height, making it difficult to flexibly adapt to different construction conditions and complex terrains. Moreover, they are mostly for single use. After the rotation construction is completed, the pouring of sealing concrete will enclose the steel structure such as the support, making it impossible to reuse. This results in a large waste of steel and other resources and increases construction costs. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the existing bridge support devices have a fixed height and are difficult to adapt flexibly to different construction conditions and complex terrains, and to propose a detachable bridge support device.

[0005] To achieve the above objectives, the present invention employs the following technology: a detachable bridge support device, comprising an outer sleeve and an inner sleeve that are nested together. The inner sleeve can move precisely and stably up and down on the outer sleeve via a hydraulic mechanism. The bottom of the outer sleeve and the top of the inner sleeve are detachably connected to the lower and upper piers of the bridge via a support base plate and a support bracket, respectively. A shock-absorbing component is provided at the connection between the outer sleeve and the inner sleeve, and a guide locking component is provided between the outer sleeve and the inner sleeve.

[0006] As a further description of the above technical solution: the hydraulic mechanism includes a hydraulic cylinder arranged along the axis of the outer sleeve and the inner sleeve, and the cylinder barrel and piston rod of the hydraulic cylinder are rigidly connected to the outer sleeve and the inner sleeve through the mounting base plate and the mounting top plate, respectively;

[0007] The hydraulic cylinder is connected to the hydraulic circuit of an external pump station via a quick-connect fitting on the outer sleeve.

[0008] As a further description of the above technical solution: a displacement sensor is detachably mounted on the piston rod of the hydraulic cylinder.

[0009] As a further description of the above technical solution: a stabilizing component is provided on the cylinder barrel of the hydraulic cylinder;

[0010] The stabilizing component includes a support rod mounted on a hydraulic cylinder via a positioning sleeve. The end of the support rod away from the hydraulic cylinder is provided with a guide wheel that abuts against the inner wall of the inner sleeve via a mounting base.

[0011] As a further description of the above technical solution: the mounting base is provided with a connecting end extending into the mounting groove of the support rod, and a washer located between the mounting base and the support rod is provided on the connecting end.

[0012] As a further description of the above technical solution: the shock absorption assembly includes a shock absorption spring sleeved on the outside of the inner sleeve, and the two ends of the shock absorption spring abut against the top of the outer sleeve and the top of the inner sleeve respectively through two damping pads.

[0013] As a further description of the above technical solution: the guide locking assembly includes a guide sleeve disposed on the outer sleeve and a guide rod disposed on the inner sleeve and cooperating with the guide sleeve;

[0014] The guide sleeve is provided with a locking bolt, and the guide rod has a bolt groove that mates with the locking bolt.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0016] The varying heights of the bridge beams, geological settlement, and the need for adjustments to the bridge's rotation posture place extremely high demands on the adjustment capabilities of the support foot device. The support foot device, which achieves stepless and precise adjustment through a hydraulic mechanism, can adjust its height in real time according to the actual situation. When encountering geological settlement, it can promptly raise or lower the support foot to maintain the levelness and stability of the bridge and prevent the beam from cracking or being damaged due to uneven settlement. During the bridge rotation process, the support foot height can be precisely adjusted according to changes in the rotation posture to ensure a smooth rotation and guarantee construction safety and bridge quality.

[0017] The detachable support structure can be easily and quickly dismantled and reused in other bridge projects. This not only significantly reduces the consumption of raw materials such as steel and lowers the manufacturing cost of new equipment, but also saves on transportation and storage costs and improves resource utilization. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0019] Figure 2 A cross-sectional view according to an embodiment of the present invention is shown;

[0020] Figure 3A schematic diagram of the structure of the hydraulic mechanism provided according to an embodiment of the present invention is shown;

[0021] Figure 4 A schematic diagram of the structure of the stabilizing component provided according to an embodiment of the present invention is shown;

[0022] Figure 5 A partial structural schematic diagram according to an embodiment of the present utility model is shown;

[0023] Figure 6 A schematic diagram of the structure of the shock-absorbing assembly provided according to an embodiment of the present invention is shown;

[0024] Figure 7 A schematic diagram of the structure of the guide locking assembly provided according to an embodiment of the present invention is shown.

[0025] Legend:

[0026] 1. Outer sleeve; 2. Inner sleeve; 3. Hydraulic mechanism; 31. Hydraulic cylinder; 32. Mounting base plate; 33. Mounting top plate; 34. Displacement sensor; 35. Stabilizing component; 351. Positioning sleeve; 352. Support rod; 353. Mounting base; 3531. Connecting end; 3532. Washer; 354. Guide wheel; 4. Support foot base plate; 5. Support foot support plate; 6. Shock absorption component; 61. Shock absorption spring; 62. Damping pad; 7. Guide locking component; 71. Guide sleeve; 72. Guide rod; 73. Locking bolt; 74. Bolt slot; 8. Quick connector. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figures 1-7 This embodiment provides a detachable bridge support device, including an outer sleeve 1 and an inner sleeve 2 that are nested together. The inner sleeve 2 can move precisely and stably on the outer sleeve 1 through a hydraulic mechanism 3. The bottom of the outer sleeve 1 and the top of the inner sleeve 2 are detachably connected to the lower and upper piers of the bridge through a support base plate 4 and a support support plate 5, respectively. The hydraulic mechanism 3 includes a hydraulic cylinder 31 arranged along the axis of the outer sleeve 1 and the inner sleeve 2. The cylinder barrel and piston rod of the hydraulic cylinder 31 are rigidly connected to the outer sleeve 1 and the inner sleeve 2 through a mounting base plate 32 and a mounting top plate 33, respectively. The hydraulic cylinder 31 is connected to the hydraulic oil circuit of an external pump station through a quick connector 8 on the outer sleeve 1.

[0029] In this invention, during the bridge construction preparation stage, the support plate 4 at the bottom of the outer sleeve 1 is reliably connected to the lower bearing platform via bolts to ensure a stable connection. The cylinder of the hydraulic cylinder 31 is rigidly connected to the outer sleeve 1 via the mounting base plate 32, and the piston rod is rigidly connected to the inner sleeve 2 via the mounting top plate 33, completing the assembly of the internal mechanical structure. The quick-connect coupling 8 on the outer sleeve 1 is used to quickly connect the hydraulic cylinder 31 to the hydraulic oil circuit of the external pump station to ensure smooth hydraulic oil transmission. The support plate 5 at the top of the inner sleeve 2 is connected to the bottom of the upper bearing platform. The pre-embedded screws are used to connect the support plate 5 to the upper bearing platform, making the connection stable. The top of the inner sleeve 2 is connected to the support plate 5 by bolts through the positioning plate. The bolt holes adopt a waist-shaped design, which allows for fine adjustment of the horizontal position. During the bridge construction process, if it is necessary to adjust the height of the support, the lifting direction and height of the inner sleeve 2 are first determined according to the construction requirements or monitoring data. The operator starts the external pump station, and the pump station starts to work, driving the hydraulic oil to flow in the oil circuit, so that the hydraulic cylinder 31 drives the inner sleeve 2 to achieve lifting and lowering work, in order to adapt to different construction conditions.

[0030] It should be noted that a displacement sensor 34 is detachably installed on the piston rod of the hydraulic cylinder 31. A pressure sensor and an oil level sensor are installed on the external pump station to monitor the system pressure and oil status in real time. In case of abnormality, the machine will automatically stop and alarm. The displacement sensor 34 is a PTS-4205000 sensor, which is connected to the external control system. The intelligent control system monitors the extension length of the inner sleeve 2 in real time, accurately controls the height of the support legs with an accuracy of ±1mm, and can link multiple sets of support legs for synchronous adjustment to adapt to the posture adjustment during the bridge rotation process.

[0031] Specifically, such as Figures 2-4 As shown, a stabilizing component 35 is provided on the cylinder barrel of the hydraulic cylinder 31. The stabilizing component 35 includes a support rod 352 that is mounted on the hydraulic cylinder 31 through a positioning sleeve 351. The end of the support rod 352 away from the hydraulic cylinder 31 is provided with a guide wheel 354 that abuts against the inner wall of the inner sleeve 2 through a mounting base 353. A connecting end 3531 that extends into the mounting groove of the support rod 352 is provided on the mounting base 3531, and a washer 3532 located between the mounting base 353 and the support rod 352 is provided on the connecting end 3531.

[0032] When the hydraulic cylinder 31 drives the inner sleeve 2 to move up and down on the outer sleeve 1, the guide wheel 354 at the other end of the support rod 352 always remains in contact with the inner wall of the inner sleeve 2. During this process, the guide wheel 354 rolls along the inner wall of the inner sleeve 2, providing additional support points and guidance for the movement of the inner sleeve 2, restricting the inner sleeve 2 to move smoothly only in the axial direction. When the inner sleeve 2 is subjected to vibration or impact during movement, the rubber washer 3532 can absorb some energy, reducing damage to the support rod 352 and the mounting base 353. It also avoids excessive friction between the guide wheel 354 and the inner wall of the inner sleeve 2 due to vibration, ensuring that the guide wheel 354 can roll smoothly. Under the action of the stabilizing component 35, the movement of the inner sleeve 2 is more stable, reducing the additional lateral force on the piston rod of the hydraulic cylinder 31 connected to it, extending the service life of the hydraulic cylinder 31, and also ensuring the stable operation of the inner sleeve 2, ensuring that the support foot device reliably supports the bridge.

[0033] Specifically, such as Figure 2 and Figure 6 As shown, a shock-absorbing component 6 is provided at the connection between the outer sleeve 1 and the inner sleeve 2. The shock-absorbing component 6 includes a shock-absorbing spring 61 sleeved on the outside of the inner sleeve 2, and the two ends of the shock-absorbing spring 61 abut against the top of the outer sleeve 1 and the inner sleeve 2 respectively through two damping pads 62.

[0034] During the bridge rotation construction process, various impact loads will be generated, such as when the rotation starts, stops, or encounters a sudden external force. When these impacts are transmitted to the connection between the outer sleeve 1 and the inner sleeve 2, the damping spring 61 and the damping pad 62 work together to achieve shock absorption and buffering, so as to absorb the impact load during the bridge rotation process, reduce the damage of vibration to the structure, and suppress high-frequency swaying through the damping effect.

[0035] Specifically, such as Figure 2 and Figure 7 As shown, a guide locking assembly 7 is provided between the outer sleeve 1 and the inner sleeve 2. The guide locking assembly 7 includes a guide sleeve 71 provided on the outer sleeve 1 and a guide rod 72 provided on the inner sleeve 2 that cooperates with the guide sleeve 71. A locking bolt 73 is provided on the guide sleeve 71, and the guide rod 72 has a bolt groove 74 that cooperates with the locking bolt 73.

[0036] The guide sleeve 71 constrains and guides the guide rod 72, allowing the inner sleeve 2 to move linearly within the inner sleeve 2 along the direction defined by the guide sleeve 71. This ensures the accuracy and stability of the relative movement between the inner sleeve 2 and the outer sleeve 1, preventing swaying or deviation. Once the inner sleeve 2 has moved to the desired position, the locking bolt 73 on the guide sleeve 71 is tightened, causing the end of the locking bolt 73 to insert into the bolt slot 74 on the guide rod 72. The nut and the locking bolt 73 work together to prevent the guide rod 72 from moving further within the guide sleeve 71, thereby fixing the relative position of the inner sleeve 2 and the outer sleeve 1 and achieving a locking function. This ensures that the inner and outer sleeves do not slip relative to each other during the bridge rotation, thus reliably fixing the support height.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A demountable bridge shore device, characterised in that, It includes an outer sleeve (1) and an inner sleeve (2) that are nested together. The inner sleeve (2) can move up and down precisely and stably on the outer sleeve (1) through a hydraulic mechanism (3). The bottom of the outer sleeve (1) and the top of the inner sleeve (2) are detachably connected to the lower and upper piers of the bridge through a support foot plate (4) and a support foot support plate (5), respectively. A shock-absorbing component (6) is provided at the connection between the outer sleeve (1) and the inner sleeve (2), and a guide locking component (7) is provided between the outer sleeve (1) and the inner sleeve (2).

2. A removable bridge footing device according to claim 1, wherein, The hydraulic mechanism (3) includes a hydraulic cylinder (31) arranged along the axis of the outer sleeve (1) and the inner sleeve (2). The cylinder barrel and piston rod of the hydraulic cylinder (31) are rigidly connected to the outer sleeve (1) and the inner sleeve (2) respectively through the mounting base plate (32) and the mounting top plate (33). The hydraulic cylinder (31) is connected to the hydraulic circuit of the external pump station through the quick-connect fitting (8) on the outer sleeve (1).

3. A demountable bridge shore device according to claim 2, characterised in that, A displacement sensor (34) is detachably mounted on the piston rod of the hydraulic cylinder (31).

4. A demountable bridge shore device according to claim 2 or 3, characterised in that, The hydraulic cylinder (31) is provided with a stabilizing component (35) on its cylinder barrel; The stabilizing component (35) includes a support rod (352) mounted on the hydraulic cylinder (31) via a positioning sleeve (351), and a guide wheel (354) abutting against the inner wall of the inner sleeve (2) is provided at one end of the support rod (352) away from the hydraulic cylinder (31) via a mounting base (353).

5. A demountable bridge shore device according to claim 4, wherein, The mounting base (353) is provided with a connecting end (3531) extending into the mounting groove of the support rod (352), and the connecting end (3531) is provided with a washer (3532) located between the mounting base (353) and the support rod (352).

6. The removable bridge footing device of claim 1, wherein, The shock-absorbing assembly (6) includes a shock-absorbing spring (61) sleeved outside the inner sleeve (2), and the two ends of the shock-absorbing spring (61) abut against the top of the outer sleeve (1) and the inner sleeve (2) respectively through two damping pads (62).

7. The removable bridge abutment device of claim 1, wherein, The guide locking assembly (7) includes a guide sleeve (71) disposed on the outer sleeve (1) and a guide rod (72) disposed on the inner sleeve (2) and cooperating with the guide sleeve (71); The guide sleeve (71) is provided with a locking bolt (73), and the guide rod (72) is provided with a bolt slot (74) that mates with the locking bolt (73).

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