Bridge jacking, supporting and reinforcing device
By using a bridge jacking support and reinforcement device, the problem of synchronous damage to hydraulic jacks was solved through multi-point support and an adjustable structure. This achieved stability in bridge jacking and improved the contact surface, thus extending the service life of the bridge.
Patent Information
- Application Number
- CN202520462665.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-17
AI Technical Summary
In existing bridge jacking technologies, hydraulic jacks are easily damaged when working synchronously, affecting stability. Furthermore, the small contact area can lead to localized damage to the bridge, reducing the jacking effect and lifespan.
The bridge jacking support and reinforcement device includes components such as a base, U-shaped plate, chute, slide bar, slider, hydraulic cylinder, reinforcing plate, bearing plate and load-bearing bar. Through multi-point support and adjustable support structure, the stability and contact surface of the bridge jacking are improved.
It improves the stability and contact surface of bridge jacking, enhances the load-bearing capacity and stability of the bridge, reduces the risk of bridge damage, and extends the service life of the bridge.
Smart Images

Figure CN223867125U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge jacking technology, and in particular to a bridge jacking support and reinforcement device. Background Technology
[0002] Bridge jacking is a technique used to repair and strengthen existing bridge structures, typically when bridges experience settlement, damage, or require increased load-bearing capacity. By jacking up the bridge and installing a new support system, its original design height and structural strength can be restored.
[0003] However, in existing technologies, multiple hydraulic jacks are usually used to work simultaneously when jacking bridges. If one of the hydraulic jacks is damaged during the jacking process, it can easily affect the stability of the jacking and pose certain safety hazards. Moreover, hydraulic jacks can only jack a part of the bridge, and the contact area with the bridge is small, which can easily damage the bridge, reduce the jacking effect and the life of the bridge. Utility Model Content
[0004] The purpose of this invention is to solve the problems in the existing technology where multiple hydraulic jacks are usually used simultaneously when jacking bridges. If one of the hydraulic jacks is damaged during the jacking process, it can easily affect the stability of the jacking and pose certain safety hazards. Moreover, hydraulic jacks can only jack a part of the bridge, and the contact area with the bridge is small, which can easily damage the bridge, reduce the jacking effect and the life of the bridge.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a bridge jacking support and reinforcement device, comprising: a base, wherein fixing holes are provided at all four corners of the base, a U-shaped plate is fixedly installed on the top of the base, and sliding grooves are provided on opposite inner surfaces of the U-shaped plate, with sliding rods fixedly embedded in the interior of each of the two sliding grooves; and further comprising:
[0006] Two sliders are movably sleeved on the outer surfaces of the two sliders, and rectangular plates are fixedly installed on the two sliders;
[0007] A hydraulic cylinder is fixedly installed at the center of the U-shaped plate, and the output end of the hydraulic cylinder is fixedly installed at the bottom of the rectangular plate.
[0008] Two reinforcing plates are fixedly installed at the bottom of the rectangular plate, and the other ends of the two reinforcing plates are fixedly installed at the output end of the hydraulic cylinder.
[0009] Preferably, a support plate is fixedly installed on the top of the rectangular plate.
[0010] The technical effect of adopting the above-mentioned further solution is that the bearing plate can increase the contact surface with the bridge, and the bridge can be lifted more stably.
[0011] Preferably, a plurality of load-bearing rods are fixedly installed on the bottom of the receiving plate, and the other side of each of the plurality of load-bearing rods is fixedly installed on the outer surface of the rectangular plate.
[0012] The technical effect of adopting the above-mentioned further solution is that multiple load-bearing rods are fixedly installed at the bottom of the support plate, and the other end of the multiple load-bearing rods is connected to the rectangular plate in a triangular shape, which can better improve the load-bearing capacity and stability of the support plate.
[0013] Preferably, a U-shaped frame is fixedly installed on the upper ends of both sides of the rectangular plate, and a round shaft is fixedly embedded inside the two U-shaped frames.
[0014] The technical advantages of adopting the above-mentioned further solution are: the U-shaped frame facilitates the installation of the round shaft, and the threaded sleeve can rotate on the outer surface of the round shaft, making it convenient to adjust the support angle.
[0015] Preferably, threaded sleeves are movably fitted onto the outer surfaces of both circular shafts, and adjusting screws are threadedly installed inside the two threaded sleeves.
[0016] The technical effect of adopting the above-mentioned further solution is that the length can be adjusted by rotating the adjusting screw, thus providing better support.
[0017] Preferably, each of the two adjusting screws has a connector rotatably mounted on its other end, and each of the two connectors has a fixing plate fixedly mounted on its bottom, with positioning holes provided on the outer surface of each fixing plate.
[0018] The technical effect of adopting the above-mentioned further solution is that the positioning hole opened on the outer surface of the fixed plate can be used to position the adjusting screw, so that the adjusting screw and the threaded sleeve can support the rectangular plate and improve the stability of the rectangular plate.
[0019] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0020] 1. In this utility model, a U-shaped plate is installed at the lower end of the bridge via a base. Fixing holes are provided at the four corners of the base to facilitate the insertion of fixing cones for limiting and fixing the base. A hydraulic cylinder is activated to move the rectangular plate upwards. Slider blocks are fixedly installed at the lower ends of both sides of the rectangular plate, and these sliders are movably fitted onto the outer surface of the sliding rods, improving the stability of the rectangular plate. Two reinforcing plates improve the connection between the rectangular plate and the hydraulic cylinder, enhancing the lifting effect of the rectangular plate. A support plate is fixedly installed at the top of the rectangular plate, increasing the contact surface with the bridge for more stable bridge lifting operations. Multiple load-bearing rods are fixedly installed at the bottom of the support plate, with the other ends of these rods connected to the rectangular plate in a triangular shape, further improving the load-bearing capacity and stability of the support plate.
[0021] 2. In this utility model, the threaded sleeve rotates on the outer surface of the round shaft, and the support angle can be adjusted as needed. The length of the adjusting screw can be adjusted by rotating the adjusting screw to provide better support. One end of the adjusting screw is fixedly installed with a fixing plate through a connector. The adjusting screw can be positioned through the positioning hole opened on the outer surface of the fixing plate, so that the adjusting screw and the threaded sleeve support the rectangular plate and improve the stability of the rectangular plate. Attached Figure Description
[0022] Figure 1 This utility model provides a structural schematic diagram of a bridge jacking support and reinforcement device;
[0023] Figure 2 This utility model provides a side view structural diagram of a bridge jacking support and reinforcement device;
[0024] Figure 3 This utility model proposes a bridge jacking support and reinforcement device. Figure 1 Enlarged structural diagram at point A in the middle;
[0025] Figure 4 This utility model provides a partial cross-sectional structural schematic diagram of a bridge jacking support and reinforcement device.
[0026] Legend:
[0027] 1. Base; 101. Fixing hole; 102. U-shaped plate; 103. Hydraulic cylinder; 104. Slide groove; 105. Slide rod; 106. Rectangular plate; 107. Support plate; 108. Reinforcing plate; 109. Threaded sleeve; 110. Adjusting screw; 111. Connector; 112. Fixing plate; 1121. Positioning hole; 113. Load-bearing rod; 114. U-shaped frame; 115. Round shaft; 116. Slider. Detailed Implementation
[0028] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0030] Example 1, such as Figure 1-4As shown, this utility model provides a bridge jacking support and reinforcement device, including: a base 1, with fixing holes 101 at each of the four corners of the base 1, a U-shaped plate 102 fixedly installed on the top of the base 1, and grooves 104 on opposite inner surfaces of the U-shaped plate 102, with sliding rods 105 fixedly embedded inside each of the two grooves 104; it also includes: two sliders 116, each movably sleeved on the outer surface of the two sliding rods 105, with rectangular plates 106 fixedly installed on the two sliders 116; and a hydraulic cylinder 103. The output end of the hydraulic cylinder 103 is fixedly installed at the center of the U-shaped plate 102 and at the bottom of the rectangular plate 106. Two reinforcing plates 108 are fixedly installed at the bottom of the rectangular plate 106, and the other ends of the two reinforcing plates 108 are fixedly installed at the output end of the hydraulic cylinder 103. A receiving plate 107 is fixedly installed on the top of the rectangular plate 106. Multiple load-bearing rods 113 are fixedly installed at the bottom of the receiving plate 107, and the other side of the multiple load-bearing rods 113 is fixedly installed on the outer surface of the rectangular plate 106.
[0031] In this embodiment, the U-shaped plate 102 is installed at the lower end of the bridge via the base 1. Fixing holes 101 are provided at the four corners of the base 1 to facilitate the insertion of fixing cones to limit and fix the base 1. The hydraulic cylinder 103 is activated to drive the rectangular plate 106 upward. Slider blocks 116 are fixedly installed at the lower ends of both sides of the rectangular plate 106. The sliders 116 are movably sleeved on the outer surface of the slide rod 105, which can improve the stability of the rectangular plate 106. The two reinforcing plates 108 can improve the connection between the rectangular plate 106 and the hydraulic cylinder 103, and improve the lifting effect of the rectangular plate 106. The top of the rectangular plate 106 is fixedly installed with a support plate 107, which can increase the contact surface with the bridge and more stably lift the bridge. The bottom of the support plate 107 is fixedly installed with multiple load-bearing rods 113. The other end of the multiple load-bearing rods 113 is connected to the rectangular plate 106 in a triangular shape, which can better improve the load-bearing capacity and stability of the support plate 107.
[0032] Example 2, as Figure 1-4 As shown, U-shaped frames 114 are fixedly installed on the upper ends of both sides of the rectangular plate 106, and round shafts 115 are fixedly embedded inside the two U-shaped frames 114; threaded sleeves 109 are movably fitted on the outer surfaces of the two round shafts 115, and adjusting screws 110 are threadedly installed inside the two threaded sleeves 109; connectors 111 are rotatably installed on the other ends of the two adjusting screws 110, and fixing plates 112 are fixedly installed on the bottom of the two connectors 111, and positioning holes 1121 are opened on the outer surfaces of the two fixing plates 112.
[0033] In this embodiment, the threaded sleeve 109 rotates on the outer surface of the round shaft 115, and the support angle can be adjusted as needed. The length of the adjusting screw 110 can be adjusted by rotating the adjusting screw 110 to provide better support. One end of the adjusting screw 110 is fixedly mounted with a fixing plate 112 through the connector 111. The adjusting screw 110 can be positioned through the positioning hole 1121 opened on the outer surface of the fixing plate 112, so that the adjusting screw 110 and the threaded sleeve 109 support the rectangular plate 106 and improve the stability of the rectangular plate 106.
[0034] Working principle: In use, the U-shaped plate 102 is installed at the lower end of the bridge via the base 1. Fixing holes 101 are provided at the four corners of the base 1 to facilitate the insertion of fixing cones to limit and fix the base 1. The hydraulic cylinder 103 is activated to move the rectangular plate 106 upwards. Slider blocks 116 are fixedly installed on the lower ends of both sides of the rectangular plate 106. The sliders 116 are movably fitted onto the outer surface of the sliding rod 105, improving the stability of the rectangular plate 106. Two reinforcing plates 108 improve the connection between the rectangular plate 106 and the hydraulic cylinder 103, enhancing the lifting effect of the rectangular plate 106. A receiving plate 107 is fixedly installed on the top of the rectangular plate 106, increasing the contact surface with the bridge and providing more stable lifting of the bridge. In this system, multiple load-bearing rods 113 are fixedly installed at the bottom of the support plate 107. The other ends of the load-bearing rods 113 are connected to the rectangular plate 106 in a triangular shape, which can better improve the load-bearing capacity and stability of the support plate 107. The threaded sleeve 109 rotates on the outer surface of the round shaft 115, and the support angle can be adjusted as needed. The length of the adjusting screw 110 can be adjusted by rotating the adjusting screw 110 for better support. One end of the adjusting screw 110 is fixedly installed with a fixing plate 112 through the connector 111. The adjusting screw 110 can be positioned through the positioning hole 1121 on the outer surface of the fixing plate 112, so that the adjusting screw 110 and the threaded sleeve 109 support the rectangular plate 106 and improve the stability of the rectangular plate 106.
[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A bridge jacking support and reinforcement device, comprising: A base (1) is provided with fixing holes (101) at each of its four corners. A U-shaped plate (102) is fixedly installed on the top of the base (1). Sliding grooves (104) are provided on the opposite inner surfaces of the U-shaped plate (102). Sliding rods (105) are fixedly embedded in the interior of each of the two sliding grooves (104). The base (102) is characterized by further comprising: Two sliders (116) are movably sleeved on the outer surface of the two sliders (105), and rectangular plates (106) are fixedly installed on the two sliders (116); A hydraulic cylinder (103) is fixedly installed at the center of the U-shaped plate (102), and the output end of the hydraulic cylinder (103) is fixedly installed at the bottom of the rectangular plate (106). Two reinforcing plates (108) are fixedly installed at the bottom of the rectangular plate (106), and the other ends of the two reinforcing plates (108) are fixedly installed at the output end of the hydraulic cylinder (103).
2. The bridge jacking support and reinforcement device according to claim 1, characterized in that: A support plate (107) is fixedly installed on the top of the rectangular plate (106).
3. The bridge jacking support and reinforcement device according to claim 2, characterized in that: Multiple load-bearing rods (113) are fixedly installed on the bottom of the receiving plate (107), and the other side of the multiple load-bearing rods (113) is fixedly installed on the outer surface of the rectangular plate (106).
4. The bridge jacking support and reinforcement device according to claim 1, characterized in that: U-shaped frames (114) are fixedly installed on the upper ends of both sides of the rectangular plate (106), and round shafts (115) are fixedly embedded inside the two U-shaped frames (114).
5. A bridge jacking support and reinforcement device according to claim 4, characterized in that: Both of the two circular shafts (115) have threaded sleeves (109) movably fitted on their outer surfaces, and both of the threaded sleeves (109) have adjusting screws (110) threadedly installed inside them.
6. A bridge jacking support and reinforcement device according to claim 5, characterized in that: The other ends of the two adjusting screws (110) are rotatably mounted with connectors (111), and the bottoms of the two connectors (111) are fixedly mounted with fixing plates (112). The outer surfaces of the two fixing plates (112) are provided with positioning holes (1121).