Adjustable bridge support replacement jacking device

Abstract

The utility model discloses a kind of adjusting bridge support replacement jacking device, including base and laser level detector, the top of the base is fixedly connected with fixed ring, the top of fixed ring is equipped with fixed plate, the bottom of fixed plate is fixedly connected with multiple limit posts, multiple evenly distributed limit holes are opened in the fixed ring, and limit post and the limit hole of corresponding position are slidably connected, the upper surface of the base is fixedly connected with hydraulic cylinder, the elongated end of hydraulic cylinder is fixed with fixed plate, the upper surface of the fixed plate is fixedly connected with multiple hydraulic jacks, one end of hydraulic jack piston rod is fixedly connected with connecting column, the utility model not only can increase the contact area of hydraulic jack and crossbeam by roof, make jacking action more stable and balanced, also can increase the friction between base and pier between ground nail, so that the device can be placed more stable.

Description

Technical Field

[0001] This utility model relates to the field of bridge bearing technology, and in particular to an adjustable bridge bearing replacement lifting device. Background Technology

[0002] The bridge bearing replacement jacking device is a piece of equipment used in bridge maintenance and repair to replace bridge bearings using jacking technology. Its main working principle is to use jacks to lift the bridge structure to a safe height so that there is enough space for bearing replacement.

[0003] A search revealed Chinese patent CN211256708U, which discloses a synchronous jacking device for replacing bridge bearings, belonging to the field of bridge construction tools. The device includes: a jacking platform, which is fixedly connected to the pier or cap beam after being embedded in it with anchor bolts, and is fixedly installed on both sides of the pier or cap beam along the longitudinal direction of the bridge; hydraulic jacks, with multiple hydraulic jacks installed on the jacking platform along the transverse direction of the bridge, used to jack the upper beam; and a synchronous jacking system. However, the device still has the following drawbacks: the jacking platform is fixed by several anchor bolts, which makes it easy for the anchor bolts to bend under excessive force when the jacking force increases, leading to tilting of the jacking platform. To better address the above problems, promote the development of industry technology, and improve core competitiveness, this application proposes a new structural composition that differs from the existing technology. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adjustable bridge bearing replacement and lifting device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable bridge bearing replacement and lifting device includes a base and a laser level detector. A fixing ring is fixedly connected to the top of the base, and a fixing plate is provided on the top of the fixing ring. Multiple limiting posts are fixedly connected to the bottom of the fixing plate. Multiple evenly distributed limiting holes are opened on the fixing ring, and the limiting posts are slidably connected to the limiting holes at corresponding positions. A hydraulic cylinder is fixedly connected to the upper surface of the base, and the extended end of the hydraulic cylinder is fixed to the fixing plate. Multiple hydraulic jacks are fixedly connected to the upper surface of the fixing plate. A connecting post is fixedly connected to one end of the piston rod of the hydraulic jack. A sleeve is sleeved on the top of the connecting post. A reinforcing plate is fixedly connected to the top of the sleeve. An installation ring is fixedly connected to the outside of the reinforcing plate. A top plate is fixedly connected to the top of the installation ring.

[0007] As a further embodiment of this utility model, a cylinder is fixedly connected to the upper surface of the fixing plate, and one end of the cylinder piston rod is fixed to the laser level detector.

[0008] As a further embodiment of this utility model, the hydraulic jack's fluid supply connector is connected to and fixed with an oil pipe.

[0009] As a further improvement of this utility model, the bottom of the base is fixedly connected with multiple ground nails.

[0010] As a further embodiment of this invention, the hydraulic cylinder is located inside the fixed ring.

[0011] As a further embodiment of this utility model, a plurality of lifting rings are fixedly connected to the upper surface of the base, and the plurality of lifting rings are evenly distributed.

[0012] As a further improvement of this utility model, an anti-wear pad is fixedly connected to the upper surface of the top plate.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model increases the contact area between the hydraulic jack and the crossbeam by increasing the top plate, making the lifting action more stable and balanced, reducing damage caused by local pressure concentration, thereby realizing the lifting and stable support of the crossbeam during bridge maintenance or repair, and improving the effectiveness of the device.

[0015] 2. This utility model can not only increase the friction between the base and the pier by using ground nails, thus making the device more stable, but also increase the friction between the top plate and the bridge beam by using anti-wear pads, while avoiding direct contact between the beam and the top plate, which can easily cause wear. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the front side of an adjustable bridge bearing replacement lifting device proposed in this utility model.

[0017] Figure 2 This is an exploded structural diagram of an adjustable bridge bearing replacement lifting device proposed in this utility model.

[0018] Figure 3 This is a partially exploded structural diagram of an adjustable bridge bearing replacement lifting device proposed in this utility model.

[0019] In the diagram: 1. Laser leveling instrument; 2. Hydraulic jack; 3. Lifting ring; 4. Base; 5. Fixing ring; 6. Fixing plate; 7. Oil pipe; 8. Anti-wear pad; 9. Limiting post; 10. Limiting hole; 11. Ground nail; 12. Hydraulic cylinder; 13. Air cylinder; 14. Connecting post; 15. Top plate; 16. Mounting ring; 17. Sleeve; 19. Reinforcing plate. Detailed Implementation

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Therefore, all other embodiments of this application described herein, and all embodiments obtained by those skilled in the art without creative effort based on the embodiments in this application, should fall within the scope of protection of this application.

[0021] Reference Figures 1-3 An adjustable bridge bearing replacement lifting device includes a base 4 and a laser level detector 1. A fixing ring 5 is fixed to the top of the base 4 by bolts. A fixing plate 6 is provided on the top of the fixing ring 5. A cylinder 13 is fixed to the upper surface of the fixing plate 6 by bolts. One end of the piston rod of the cylinder 13 is fixed to the laser level detector 1. The model of the laser level detector 1 is DL331030Z. The cylinder 13 is activated to move the laser level detector 1 upward to contact the crossbeam of the bridge bearing, so that it can detect the levelness of the crossbeam.

[0022] The bottom of the fixed plate 6 is fixed with multiple limiting posts 9 by bolts. The fixed ring 5 has multiple evenly distributed limiting holes 10, and the limiting posts 9 are slidably connected with the corresponding limiting holes 10. The fixed plate 6 is guided by the cooperation of the limiting holes 10 and the limiting posts 9. The upper surface of the base 4 is fixed with a hydraulic cylinder 12 by bolts, and the extended end of the hydraulic cylinder 12 is fixed to the fixed plate 6.

[0023] Specifically, multiple hydraulic jacks 2 are bolted to the upper surface of the fixed plate 6. One end of the piston rod of each hydraulic jack 2 is bolted to a connecting column 14. A sleeve 17 is fitted onto the top of the connecting column 14. A reinforcing plate 19 is welded to the top of the sleeve 17. An installation ring 16 is welded to the outer side of the reinforcing plate 19. A top plate 15 is bolted to the top of the installation ring 16. The device is placed between the bridge beam and the pier where it is to be used, so that the bottom of the device contacts the pier. The hydraulic cylinder 12 extends, causing the fixed plate 6 to move upward, and limiting... Position column 9 moves along the limiting hole 10, while fixing plate 6 drives the components on its top to move upward as a whole until anti-wear pad 8 makes pre-contact with the bottom of the crossbeam. Then, hydraulic jack 2 is activated, causing reinforcing plate 19 to drive top plate 15 to move upward, so that anti-wear pad 8 on top plate 15 makes further contact with the crossbeam. By increasing the contact area between hydraulic jack 2 and crossbeam through top plate 15, the lifting action is made more stable and balanced, reducing damage caused by local pressure concentration, thereby realizing the lifting and stable support of crossbeam during bridge maintenance or repair.

[0024] In this utility model, it should be noted that the hydraulic jack 2 is connected to and fixed with an oil pipe 7. Multiple oil pipes 7 are connected to a control system through a proportional valve, so that multiple hydraulic jacks 2 can move synchronously. Multiple ground nails 11 are welded to the bottom of the base 4 to increase the friction between the base 4 and the platform, so that the device can be placed more stably.

[0025] The hydraulic cylinder 12 is located inside the fixed ring 5. A wiring hole is provided on one side of the fixed ring 5 to facilitate the connection of the hydraulic cylinder 12 to an external hydraulic control system. Multiple lifting rings 3 are welded on the upper surface of the base 4, and the multiple lifting rings 3 are evenly distributed to facilitate the movement of the device when not in use. The upper surface of the top plate 15 is bonded with an anti-wear pad 8, which can increase the friction between the top plate 15 and the bridge beam, and at the same time prevent the beam from directly contacting the top plate 15 and easily wearing out.

[0026] Working principle: In use, the device is placed between the bridge beam and the pier, so that the ground nail 11 contacts the pier. Then, the hydraulic cylinder 12 is activated, and the hydraulic cylinder 12 extends, causing the fixing plate 6 to move upward. The limiting post 9 moves along the limiting hole 10. At the same time, the fixing plate 6 drives the components on its top to move upward until the anti-wear pad 8 makes pre-contact with the bottom of the beam. Then, the hydraulic jack 2 is activated, causing the reinforcing plate 19 to move the top plate 15 upward, so that the anti-wear pad 8 on the top plate 15 makes further contact with the beam. The cylinder 13 is activated, causing the laser level detector 1 to move upward and contact the beam, so that it can detect the levelness of the beam. The top plate 15 increases the contact area between the hydraulic jack 2 and the beam, making the lifting action more stable and balanced, reducing the damage caused by local pressure concentration, thereby realizing the lifting and stable support of the beam during bridge maintenance or repair.

[0027] This utility model has been described through the above embodiments. Those skilled in the art will understand that this utility model is not limited to the above embodiments. Many more modifications can be made based on the teachings of this utility model, and all such modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable bridge bearing replacement lifting device, comprising a base (4) and a laser level detector (1), characterized in that, The base (4) is fixedly connected to a fixed ring (5) at the top. The fixed ring (5) is provided with a fixed plate (6) at the top. The fixed plate (6) is fixedly connected to a plurality of limiting posts (9) at the bottom. The fixed ring (5) is provided with a plurality of evenly distributed limiting holes (10). The limiting posts (9) are slidably connected to the limiting holes (10) at the corresponding positions. The upper surface of the base (4) is fixedly connected to a hydraulic cylinder (12). The extended end of the hydraulic cylinder (12) is fixed to the fixed plate (6). The upper surface of the fixed plate (6) is fixedly connected to a plurality of hydraulic jacks (2). One end of the piston rod of the hydraulic jack (2) is fixedly connected to a connecting post (14). The top end of the connecting post (14) is sleeved with a sleeve (17). The top end of the sleeve (17) is fixedly connected to a reinforcing plate (19). The outer side of the reinforcing plate (19) is fixedly connected to an installation ring (16). The top of the installation ring (16) is fixedly connected to a top plate (15).

2. The adjustable bridge bearing replacement lifting device according to claim 1, characterized in that, A cylinder (13) is fixedly connected to the upper surface of the fixed plate (6), and one end of the piston rod of the cylinder (13) is fixed to the laser level detector (1).

3. The adjustable bridge bearing replacement lifting device according to claim 1, characterized in that, The hydraulic jack (2) is connected to an oil pipe (7) via its fluid supply connector.

4. The adjustable bridge bearing replacement lifting device according to claim 1, characterized in that, The bottom of the base (4) is fixedly connected with multiple ground nails (11).

5. The adjustable bridge bearing replacement lifting device according to claim 1, characterized in that, The hydraulic cylinder (12) is located inside the fixed ring (5).

6. The adjustable bridge bearing replacement lifting device according to claim 1, characterized in that, The upper surface of the base (4) is fixedly connected with multiple lifting rings (3), and the multiple lifting rings (3) are evenly distributed.

7. The adjustable bridge bearing replacement lifting device according to claim 1, characterized in that, The top plate (15) is fixedly connected to the upper surface of the anti-wear pad (8).

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