Modular synchronous jacking device for bridge jacking construction

Abstract

The utility model relates to bridge jacking construction technical field, and disclose a kind of modularization synchronous jacking device of bridge jacking construction, including base, the top of base is fixedly connected with hydraulic cylinder.The modularization synchronous jacking device of bridge jacking construction is provided with fixed box, synchronous board, reversible motor, threaded rod, lifting block, articulated rod, locking rod and positioning groove, synchronous board is lifted synchronously in fixed box when being lifted in lifting platform under the action of hydraulic cylinder, and when being lifted to required position, reversible motor starts to lift lifting block, so that lifting block moves outward by articulated rod and is locked into corresponding positioning groove, even if the fault of hydraulic cylinder, the height of lifting can be kept unchanged under the action of locking rod, so that staff has sufficient time to repair hydraulic cylinder, improve the security of jacking device.

Description

Technical Field

[0001] This utility model relates to the field of bridge jacking construction technology, specifically a modular synchronous jacking device for bridge jacking construction. Background Technology

[0002] A bridge is an architectural structure that crosses obstacles and plays an important role in transportation, water conservancy, urban construction and other fields. A bridge is a structure built by artificial means to cross natural or man-made obstacles, and its main purpose is to enable vehicles, pedestrians and other vehicles to pass safely and conveniently.

[0003] The core purpose of using jacking devices in bridge construction is to adjust the height, move the position, or repair and reinforce the bridge structure without damaging the original structure or affecting traffic. Jacks and other jacking equipment are used to lift the entire or part of the bridge superstructure, separating the old bearings from the beams, so that the old bearings can be safely removed and replaced with new ones.

[0004] The prior art patent document CN215479469U discloses a jacking device for road and bridge maintenance. This jacking device facilitates the adjustment of the support height and is easy to move, increasing the flexibility of the device. It allows the drill rod to drill into the ground, thereby strengthening the connection between the device and the ground and increasing the stability of the device. By setting a fixing ring and a sponge ring, the sponge ring contacts the first threaded rod. When the threaded cylinder rotates, the sponge ring cleans the first threaded rod.

[0005] While the existing technology described above allows for adjustment of the support height and facilitates movement, increasing its flexibility, a malfunction in the lifting mechanism during bridge lifting can lead to uncontrolled lifting at the top, potentially causing an accident and reducing the safety of the lifting device. Therefore, we need a modular synchronous lifting device for bridge lifting construction. Utility Model Content

[0006] The purpose of this utility model is to provide a modular synchronous jacking device for bridge jacking construction, in order to solve the problem that if the jacking mechanism responsible for jacking malfunctions when jacking a bridge, the jacking action at the top will become uncontrollable, leading to an accident and reducing the safety of the jacking device.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A modular synchronous jacking device for bridge jacking construction includes a base, a hydraulic cylinder fixedly connected to the top of the base, a lifting platform provided on the top of the hydraulic cylinder, a locking component installed at the bottom of the lifting platform, a support plate fixedly connected to the top of the lifting platform, and an adjustment component provided on one side of the support plate.

[0009] The locking assembly includes a fixed box, a synchronous plate is slidably connected to the inner wall of the fixed box, and a forward and reverse motor is installed inside the synchronous plate. The output end of the forward and reverse motor is detachably connected to a threaded rod through a coupling, and a lifting block is threadedly connected to the outer surface of the threaded rod. A hinge rod is hinged to one side of the lifting block, and a locking rod is hinged to one end of the hinge rod. A positioning groove is provided on the inner wall of the fixed box.

[0010] The adjustment assembly includes a connecting shaft, a movable plate rotatably connected to one side of the connecting shaft, a rotating shaft installed at the bottom of the movable plate, a lifting component hinged to the bottom of the rotating shaft, a fixing block fixedly connected to the top of the lifting platform, and an anti-compression spring installed inside the fixing block.

[0011] Preferably, the top of the base is threaded with a fixing screw.

[0012] Preferably, the fixed box forms a sliding structure with the lifting platform through a synchronous plate, and the shape and size of the bottom of the synchronous plate match the shape and size of the inner wall of the fixed box.

[0013] Preferably, the forward and reverse motors form a lifting structure with the lifting block via a threaded rod, and the external thread of the threaded rod matches the internal thread of the lifting block.

[0014] Preferably, the lifting block forms a movable structure through a hinge rod and a locking rod, and the hinge rod is disposed between the locking rod and the lifting block, and the number of positioning slots is multiple.

[0015] Preferably, the pallet is connected to the movable plate via a connecting shaft to form a rotating structure, and the number of movable plates is two.

[0016] Preferably, the movable plate forms a rotating structure with the lifting component via a rotating shaft, and the fixed block forms an elastic structure with the lifting component via a compression spring, with the lifting component positioned between the rotating shaft and the compression spring.

[0017] Compared with the prior art, the beneficial effects of this utility model are: this modular synchronous jacking device for bridge jacking construction,

[0018] 1. This utility model includes a fixed box, a synchronous plate, a forward and reverse motor, a threaded rod, a lifting block, a hinge rod, a locking rod, and a positioning groove. When the lifting platform is raised and lowered by the hydraulic cylinder, the synchronous plate will move synchronously up and down within the fixed box. When the platform reaches the desired position, the forward and reverse motor will start, causing the lifting block to move up and down. This allows the lifting block to move outward through the hinge rod and extend into the corresponding positioning groove for locking. Even if the hydraulic cylinder malfunctions, the locking rod will ensure that the lifting height remains constant, giving workers ample time to repair the hydraulic cylinder and improving the safety of the lifting device.

[0019] 2. This utility model is equipped with a connecting shaft, a movable plate, a rotating shaft, a lifting component, a fixing block, and a compression spring. When the top support plate of the lifting device lifts the top, the structure of the top bridge may not be completely flat and may have arc-shaped support points. The movable plates on both sides of the support plate can rotate under the action of the connecting shaft to adapt to the contact surfaces of different bridges. The compression spring can buffer when pressure is applied, thus improving the compression resistance and adaptability of the lifting device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0022] Figure 3 This is a schematic diagram of the lifting block locking rod structure of this utility model;

[0023] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0024] The components include: 1. Base; 2. Hydraulic cylinder; 3. Lifting platform; 4. Locking assembly; 401. Fixing box; 402. Synchronous plate; 403. Forward and reverse motor; 404. Threaded rod; 405. Lifting block; 406. Hinge rod; 407. Locking rod; 408. Positioning groove; 5. Fixing screw; 6. Support plate; 7. Adjusting assembly; 701. Connecting shaft; 702. Movable plate; 703. Rotating shaft; 704. Lifting component; 705. Fixing block; 706. Compression spring. Detailed Implementation

[0025] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A modular synchronous jacking device for bridge jacking construction includes a base 1, a hydraulic cylinder 2 fixedly connected to the top of the base 1, a lifting platform 3 set on the top of the hydraulic cylinder 2, a locking component 4 installed at the bottom of the lifting platform 3, a support plate 6 fixedly connected to the top of the lifting platform 3, and an adjustment component 7 set on one side of the support plate 6.

[0027] The locking assembly 4 includes a fixed box 401. A synchronous plate 402 is slidably connected to the inner wall of the fixed box 401. A forward and reverse motor 403 is installed inside the synchronous plate 402. The output end of the forward and reverse motor 403 is detachably connected to a threaded rod 404 through a coupling. A lifting block 405 is threadedly connected to the outer surface of the threaded rod 404. A hinge rod 406 is hinged to one side of the lifting block 405. A locking rod 407 is hinged to one end of the hinge rod 406. A positioning groove 408 is provided on the inner wall of the fixed box 401.

[0028] The adjustment assembly 7 includes a connecting shaft 701, a movable plate 702 is rotatably connected to one side of the connecting shaft 701, and a rotating shaft 703 is installed at the bottom of the movable plate 702. A lifting component 704 is hinged to the bottom of the rotating shaft 703. A fixing block 705 is fixedly connected to the top of the lifting platform 3, and an anti-compression spring 706 is installed inside the fixing block 705.

[0029] Through the above technical solution, when the lifting platform 3 is lifted and lowered by the hydraulic cylinder 2, the synchronous plate 402 will be driven to lift and lower synchronously in the fixed box 401. When it is lifted to the required position, the forward and reverse motors 403 will start and drive the lifting block 405 to lift and lower. The lifting block 405 will drive the locking rod 407 to move outward through the hinge rod 406 and extend into the corresponding positioning groove 408 for locking. Even if the hydraulic cylinder 2 fails, the lifting height can remain unchanged under the action of the locking rod 407, giving the staff sufficient time to repair the hydraulic cylinder 2 and improving the safety of the lifting device.

[0030] Specifically, the top of the base 1 is threaded with a fixing screw 5.

[0031] The above technical solution facilitates the rotation of the fixing screw 5 downwards into the ground for fixation, enabling the lifting device to maintain the stability of the chassis when lifting the bridge, thus improving the stability of the lifting device's operation.

[0032] Specifically, the fixed box 401 forms a sliding structure with the lifting platform 3 through the synchronous plate 402, and the shape and size of the bottom of the synchronous plate 402 match the shape and size of the inner wall of the fixed box 401.

[0033] The above technical solution facilitates the synchronous sliding of the synchronous plate 402 within the fixed box 401 when the lifting platform 3 is raised or lowered, thus achieving the effect of raising or lowering the synchronous plate 402.

[0034] Specifically, the forward and reverse motor 403 forms a lifting structure with the lifting block 405 through the threaded rod 404, and the external thread of the threaded rod 404 matches the internal thread of the lifting block 405.

[0035] The above technical solution facilitates the starting of the forward and reverse motor 403, which drives the threaded rod 404 to rotate and simultaneously drives the lifting block 405 to rise and fall, thus achieving the effect of lifting the lifting block 405.

[0036] Specifically, the lifting block 405 forms a movable structure with the locking rod 407 via the hinge rod 406, and the hinge rod 406 is located between the locking rod 407 and the lifting block 405. There are multiple positioning slots 408.

[0037] Through the above technical solution, during the lifting and lowering process of the lifting block 405, the hinge rod 406 will rotate. The rotation of the hinge rod 406 will push and pull the locking rod 407 to move. When the lifting block 405 moves upward, it will drive the two locking rods 407 to move inward. When the lifting block 405 moves downward, it will drive the two locking rods 407 to move outward. The locking rods 407 will slide on the inner wall of the synchronous plate 402, which will allow the locking rods 407 to extend into the positioning groove 408 and be locked, so that the synchronous plate 402 cannot be lifted or lowered, thus achieving the effect of locking the height of the lifting platform 3.

[0038] Specifically, the pallet 6 forms a rotating structure with the movable plate 702 via the connecting shaft 701, and there are two movable plates 702.

[0039] The above technical solution facilitates the rotation of the movable plate 702 under the action of the connecting shaft 701, and enables the movable plate 702 to automatically rotate to adapt to the arc-shaped contact surface when it encounters an arc-shaped contact surface.

[0040] Specifically, the movable plate 702 forms a rotating structure with the lifting component 704 via the rotating shaft 703, and the fixed block 705 forms an elastic structure with the lifting component 704 via the anti-compression spring 706, and the lifting component 704 is disposed between the rotating shaft 703 and the anti-compression spring 706.

[0041] The above technical solution facilitates the movement of the movable plate 702 during rotation, which in turn drives the lifting component 704 to rise and fall via the rotating shaft 703. The lifting component 704 rises and falls within the fixed block 705, causing the anti-compression spring 706 within the fixed block 705 to move elastically. The anti-compression spring 706 can buffer the lifting component 704 and effectively support the load-bearing capacity of the movable plate 702.

[0042] Working Principle: When using this modular synchronous jacking device for bridge jacking construction, the device is first equipped with an external power supply to power the equipment inside. The hydraulic cylinder 2 is activated to lift the lifting platform 3 upwards. Simultaneously, the lifting platform 3 drives the synchronous plate 402 to slide within the fixed box 401, causing the support plate 6 on top of the lifting platform 3 to lift the bridge. At the same time, because the bridge's contact surface is arc-shaped, the movable plates 702 on both sides rotate under the action of the connecting shaft 701. The movable plates 702 cause the lifting component 704 at the bottom of the rotating shaft 703 to move downwards. Under the action of the anti-compression spring 706, the pressure on the lifting component 704 is reduced. The buffer provides effective support. Simultaneously, the forward and reverse motors 403 are activated, driving the threaded rod 404 to rotate. The threaded rod 404 drives the lifting block 405 to move downwards. The lifting block 405 drives the hinge rod 406 to rotate, with the two hinge rods 406 rotating in opposite directions. During the rotation of the hinge rod 406, the locking rod 407 moves outwards, allowing it to extend into the corresponding positioning groove 408 for connection. This prevents the synchronous plate 402 from lifting, thus locking the lifting device. This completes all the work. Any content not described in detail in this specification is prior art known to those skilled in the art.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular synchronous jacking device for bridge jacking construction, comprising a base (1), characterized in that: A hydraulic cylinder (2) is fixedly connected to the top of the base (1), and a lifting platform (3) is provided on the top of the hydraulic cylinder (2). A locking component (4) is installed at the bottom of the lifting platform (3). A support plate (6) is fixedly connected to the top of the lifting platform (3), and an adjustment component (7) is provided on one side of the support plate (6). The locking assembly (4) includes a fixed box (401), a synchronous plate (402) is slidably connected to the inner wall of the fixed box (401), and a forward and reverse motor (403) is installed inside the synchronous plate (402). The output end of the forward and reverse motor (403) is detachably connected to a threaded rod (404) through a coupling, and a lifting block (405) is threadedly connected to the outer surface of the threaded rod (404). A hinge rod (406) is hinged to one side of the lifting block (405), and a locking rod (407) is hinged to one end of the hinge rod (406). A positioning groove (408) is provided on the inner wall of the fixed box (401). The adjustment assembly (7) includes a connecting shaft (701), a movable plate (702) is rotatably connected to one side of the connecting shaft (701), and a rotating shaft (703) is installed at the bottom of the movable plate (702). A lifting component (704) is hinged to the bottom of the rotating shaft (703). A fixing block (705) is fixedly connected to the top of the lifting platform (3), and an anti-compression spring (706) is installed inside the fixing block (705).

2. The modular synchronous jacking device for bridge jacking construction according to claim 1, characterized in that: The top of the base (1) is threaded with a fixing screw (5).

3. The modular synchronous jacking device for bridge jacking construction according to claim 1, characterized in that: The fixed box (401) forms a sliding structure with the lifting platform (3) through the synchronous plate (402), and the shape and size of the bottom of the synchronous plate (402) match the shape and size of the inner wall of the fixed box (401).

4. The modular synchronous jacking device for bridge jacking construction according to claim 1, characterized in that: The forward and reverse motor (403) forms a lifting structure with the lifting block (405) through the threaded rod (404), and the external thread of the threaded rod (404) matches the internal thread of the lifting block (405).

5. A modular synchronous jacking device for bridge jacking construction according to claim 1, characterized in that: The lifting block (405) forms a movable structure with the locking rod (407) via the hinge rod (406), and the hinge rod (406) is located between the locking rod (407) and the lifting block (405). The number of positioning grooves (408) is multiple.

6. A modular synchronous jacking device for bridge jacking construction according to claim 1, characterized in that: The pallet (6) is connected to the movable plate (702) via a connecting shaft (701) to form a rotating structure, and there are two movable plates (702).

7. A modular synchronous jacking device for bridge jacking construction according to claim 1, characterized in that: The movable plate (702) forms a rotating structure with the lifting component (704) via the rotating shaft (703), and the fixed block (705) forms an elastic structure with the lifting component (704) via the anti-compression spring (706), and the lifting component (704) is located between the rotating shaft (703) and the anti-compression spring (706).

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