Supporting bracket for bridge incremental launching construction

Abstract

The utility model relates to a supporting bracket for bridge incremental launching construction, which comprises a bottom plate and a supporting piece, hydraulic cylinders I are fixed at four corners of the top surface of the bottom plate, and a plurality of hydraulic cylinders I are jointly connected with a box body; the supporting piece comprises a U-shaped plate and supporting plates, the upper ends of the front side plate and the rear side plate of the U-shaped plate movably penetrate through the lower side plate of the box body and extend into the box body, the lower ends of the multiple supporting plates movably penetrate through the top plate of the box body and are located between the front side plate and the rear side plate of the U-shaped plate, and the lower end of each supporting plate is connected with the inner bottom face of the box body through a spring; clamping pieces are symmetrically arranged on the left side and the right side of each supporting plate located in the box body, the clamping piece on the left side comprises a clamping plate and an inclined hole, the clamping plate is arranged in the box body in a left-right movable mode, inclined holes with the upper ends inclining rightwards are formed in side plates, on the front side and the rear side of the clamping plate, of the U-shaped plate, and the two ends of the clamping plate are connected with connecting rods with the ends stretching into the inclined holes in the same side. The problems that a supporting bracket of a bridge is difficult to adapt to a non-horizontal bridge and an existing device is not high in safety and efficiency are solved.

Description

Technical Field

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

[0002] Bridge support brackets are temporary structures installed during bridge construction to ensure the safe and accurate erection of bridge components (such as beam jacking, arch rib construction, and bridge deck construction); support brackets can also be used for bridge maintenance.

[0003] When using support brackets, support plates are used to support the bottom of the bridge. However, since not all bridge bottoms are level, conventionally used flat support plates are difficult to effectively support non-level bridges, resulting in poor support performance. The authorized publication number CN221989100U, "A Support Bracket for Highway Bridge Construction," provides a device that adjusts multiple top plates vertically to support different positions of the bridge bottom, thereby achieving bridge support. However, when using this device, the high position of the lead screw affects the safety of construction workers, and multiple adjustments to the top plates at different positions are required to achieve support for the bridge, resulting in low efficiency and impacting the construction progress. Summary of the Invention

[0004] This invention addresses the problems of existing bridge support brackets being unsuitable for non-horizontal bridges and the low safety and efficiency of existing devices; it provides a support bracket for bridge jacking construction that can quickly and effectively support the bridge.

[0005] To solve the above problems, the technical solution of this utility model is:

[0006] A support bracket for bridge jacking construction includes a base plate and support components. Hydraulic cylinders are fixed at the four corners of the top surface of the base plate, and the piston ends of multiple hydraulic cylinders are connected to a housing. The support components include a U-shaped plate and support plates. The upper ends of the front and rear side plates of the U-shaped plate movably penetrate the lower side plate of the housing and extend into the housing. The U-shaped plate is driven upward or downward by hydraulic cylinders. The lower ends of multiple support plates movably penetrate the top plate of the housing and are located between the front and rear side plates of the U-shaped plate. The lower end of each support plate is connected to the bottom surface of the housing via a spring. Each support plate located inside the housing has symmetrical clamping components on its left and right sides. The left clamping component includes a clamping plate and an oblique hole. The clamping plate is movably positioned inside the housing. The U-shaped plate side plates on the front and rear sides of the clamping plate each have oblique holes with the upper end tilting to the right. Connecting rods with ends extending into the oblique holes on the same side are connected to both ends of the clamping plate.

[0007] Furthermore, the lower side plate of the U-shaped plate is located on the lower side of the box body, and the second hydraulic cylinder is fixed to the outer bottom surface of the box body. The piston end of the second hydraulic cylinder is connected to the lower side plate of the U-shaped plate with its piston facing downward. The distance between the front and rear outer sides of the U-shaped plate corresponds to the distance between the front and rear inner sides of the box body.

[0008] Furthermore, the multiple support plates are spaced apart along the length of the box, and each support plate is parallel to the left side plate of the box; when the multiple springs are in their natural state, the upper ends of the multiple support plates are higher than the box and flush with it.

[0009] Furthermore, the front and rear interior of the box body is provided with upright plates at both ends that are fixedly connected to the left and right inner surfaces of the box body, and the front and rear parts of each clamping plate inside the box body are slidably sleeved on the front and rear upright plates through sliding holes.

[0010] Furthermore, the connecting rod is a round rod with a diameter that matches the width of the corresponding oblique hole, and the peripheral wall of the connecting rod and the side of the corresponding oblique hole are in sliding contact; the diameter of the connecting rod is smaller than the thickness of the clamping plate, and the upper end of the oblique hole at the front of the left clamping member is located directly in front of the corresponding support plate.

[0011] Furthermore, both the support plate and the clamping plate are made of metal fiber reinforced material.

[0012] The beneficial effects of this utility model through the above technical solution are as follows:

[0013] During the upward movement of the box body of this utility model, it is affected by the non-horizontal bottom of the bridge, and the downward movement of each support plate is different. Multiple support plates contact different positions of the bottom of the bridge, and provide adjustable support according to the shape of the bottom of the bridge, with a large support area. Each support plate is limited by the clamping parts on both sides. After the support plate contacts the bottom of the bridge, the movement of the support plate is limited, thereby enabling multiple support plates to provide effective and large-area support for the bottom of the bridge, improving the support effect.

[0014] This utility model provides convenient support for bridges with multiple support plates, eliminating the need for repeated manual adjustments and resulting in high efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection between the U-shaped plate, the support plate, and the clamping component of this utility model;

[0017] Figure 3 This is a sectional front view of the present invention (base plate and hydraulic cylinder are hidden).

[0018] Figure 4 yes Figure 3 Sectional view at point AA.

[0019] The attached diagram is labeled as follows: 1. Base plate, 2. Roller, 3. Hydraulic cylinder one, 4. Box body, 5. U-shaped plate, 6. Support plate, 7. Hydraulic cylinder two, 8. Spring, 10. Clamping plate, 11. Inclined hole, 12. Connecting rod, 13. Vertical plate, 14. Sliding hole. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0021] like Figures 1-4 As shown, a support bracket for bridge jacking construction includes a base plate 1 and support components. Lockable rollers 2 are provided at the four corners of the bottom surface of the base plate 1. Hydraulic cylinders 3 with their piston ends facing upwards are fixed at the four corners of the top surface of the base plate 1. Multiple hydraulic cylinders 3 with their piston ends facing upwards are connected to a housing 4. The lower opening of the housing 4 is blocked by a lower side plate. The support components include a U-shaped plate 5 and a support plate 6. The upper and left / right ends of the U-shaped plate 5 are open. The upper ends of the front and rear side plates of the U-shaped plate 5 can movably penetrate the lower side plate of the housing 4 and extend into the housing 4. The U-shaped plate 5 is driven upwards or downwards by hydraulic cylinders 7. The lower ends of multiple support plates 6 movably penetrate the top plate of the box body 4 and are located between the front and rear side plates of the U-shaped plate 5. The lower end of each support plate 6 is connected to the inner bottom surface of the box body 4 via a spring 8. Each support plate 6 located in the box body 4 is symmetrically provided with clamping components on the left and right sides. The left clamping component includes a clamping plate 10 and an oblique hole 11. The clamping plate 10 is movably disposed in the box body 4. The clamping plate 10 is a rectangular plate. The U-shaped plate 5 side plates on the front and rear sides of the clamping plate 10 are provided with oblique holes 11 that tilt to the right at the upper end. The oblique holes 11 are elongated holes. The two ends of the clamping plate 10 are connected with connecting rods 12 whose ends extend into the oblique holes 11 on the same side.

[0022] The lower side plate of the U-shaped plate 5 is located on the lower side of the box body 4. The second hydraulic cylinder 7 is fixed on the outer bottom surface of the box body 4, and the piston end of the second hydraulic cylinder 7 is connected to the lower side plate of the U-shaped plate 5 with its piston facing downward. The distance between the front and rear outer sides of the U-shaped plate 5 corresponds to the distance between the front and rear inner sides of the box body 4.

[0023] Multiple support plates 6 are spaced apart along the length of the housing 4, and each support plate 6 is parallel to the left side plate of the housing 4; when the multiple springs 8 are in their natural state, the upper ends of the multiple support plates 6 are higher than and flush with the housing 4, and the support plates 6 are rectangular plates.

[0024] The front and rear interior of the box body 4 are provided with upright plates 13 with both ends fixedly connected to the left and right inner surfaces of the box body 4. The front and rear parts of each clamping plate 10 inside the box body 4 are slidably sleeved on the front and rear upright plates 13 through sliding holes 14 respectively. The upright plates 13 are all rectangular plates, and the two upright plates 13 are located between the front and rear side plates of the U-shaped plate 5 inside the box body 4.

[0025] The connecting rod 12 is a round rod with a diameter that matches the width of the corresponding inclined hole 11. The peripheral wall of the connecting rod 12 and the side of the corresponding inclined hole 11 are in sliding contact. The diameter of the connecting rod 12 is smaller than the thickness of the clamping plate 10. The upper end of the inclined hole 11 at the front of the left clamping member is located directly in front of the corresponding support plate 6.

[0026] Both the support plate 6 and the clamping plate 10 are made of metal fiber reinforced material. When the clamping plate 10 made of metal fiber reinforced material comes into contact with the support plate 6, it can increase the friction between the support plate 6 and the clamping plate 10.

[0027] The piston end of hydraulic cylinder 2 7 moves as follows: When the piston end of hydraulic cylinder 2 7 retracts to its limit, the upper ends of the front and rear side plates of U-shaped plate 5 contact the inner top surface of box 4. At this time, there is a gap between each support plate 6 and the clamping plates 10 on both sides. When the piston end of hydraulic cylinder 2 7 extends to its limit, U-shaped plate 5 moves downward to its limit. At this time, each support plate 6 is clamped by the clamping plates 10 on both sides.

[0028] In the initial state, hydraulic cylinder 2 7 drives U-shaped plate 5 to move upward to its limit. At this time, each support plate 6 moves upward to its limit under the action of the connected spring 8, and the upper ends of multiple support plates 6 are aligned.

[0029] In use, this utility model is moved under the bridge that needs support, and the piston ends of multiple hydraulic cylinders 3 extend simultaneously, causing the housing 4 to move upward. Multiple support plates 6 move upward with the housing 4 until their upper ends contact the bottom of the bridge. For bridges with a non-horizontal bottom, as the housing 4 moves upward, each support plate 6 is pressed against different parts of the bridge bottom, and the lower end of each support plate 6 moves downward a different distance. The spring 8 connected to each support plate 6 is compressed, and each support plate 6 maintains contact with the bottom of the bridge. After the upper end of each support plate 6 contacts the bottom of the bridge, the operation of multiple hydraulic cylinders 3 stops. Subsequently, the piston end of hydraulic cylinder 7 extends to drive the U-shaped... As plate 5 moves downward, the connecting rods 12 at the front and rear ends of the clamping plate 10 on the left side of each support plate 6 extend into the inclined hole 11 at the upper end that tilts to the right. When the inclined hole 11 moves downward with the U-shaped plate 5, the side of the inclined hole 11 presses against the corresponding connecting rod 12. The two connecting rods 12 carry the clamping plate 10 on the left side and move to the right along the length of the vertical plate 13 toward the support plate 6. Similarly, the clamping plate 10 on the right side of each support plate 6 moves to the left toward the support plate 6. This continues until the piston end of the hydraulic cylinder 7 moves downward to its limit. At this point, each support plate 6 is clamped by the clamping plates 10 on both sides, and each support plate 6 is limited and will not move upward or downward. The multiple support plates 6 can maintain the support and support for the bridge.

[0030] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present utility model without departing from the spirit of the present utility model or the scope of disclosure shall fall within the protection scope of the present utility model.

Claims

1. A support bracket for bridge jacking construction, characterized in that, The base plate (1) includes a base plate (1) and supporting components. Hydraulic cylinders (3) are fixed to the four corners of the top surface of the base plate (1). The piston ends of multiple hydraulic cylinders (3) are upward-facing and connected to a housing (4). The supporting components include a U-shaped plate (5) and supporting plates (6). The upper ends of the front and rear side plates of the U-shaped plate (5) extend through the lower side plate of the housing (4) and into the housing (4). The U-shaped plate (5) is driven upward or downward by hydraulic cylinders (7). The lower ends of multiple supporting plates (6) extend through the top plate of the housing (4) and are located on the U-shaped plate (5). 5) Between the front and rear side plates, the lower end of each support plate (6) is connected to the bottom surface of the box (4) via a spring (8). Each support plate (6) located in the box (4) is symmetrically provided with clamping parts on the left and right sides. The left clamping part includes a clamping plate (10) and an oblique hole (11). The clamping plate (10) is movably located in the box (4). The U-shaped plate (5) side plates on the front and rear sides of the clamping plate (10) are provided with oblique holes (11) that tilt to the right at the upper end. The two ends of the clamping plate (10) are connected with connecting rods (12) whose ends extend into the oblique holes (11) on the same side.

2. The support bracket for bridge jacking construction according to claim 1, characterized in that, The lower side plate of the U-shaped plate (5) is located on the lower side of the box (4). The second hydraulic cylinder (7) is fixed on the outer bottom surface of the box (4). The piston end of the second hydraulic cylinder (7) is connected to the lower side plate of the U-shaped plate (5) with its piston facing downward. The distance between the front and rear outer sides of the U-shaped plate (5) corresponds to the distance between the front and rear inner sides of the box (4).

3. The support bracket for bridge jacking construction according to claim 1, characterized in that, Multiple support plates (6) are spaced apart along the length of the box (4), and each support plate (6) is parallel to the left side plate of the box (4); when the multiple springs (8) are in their natural state, the upper ends of the multiple support plates (6) are higher than the box (4) and flush with it.

4. A support bracket for bridge jacking construction according to claim 1, characterized in that, The front and rear interior of the box (4) are provided with upright plates (13) that are fixedly connected to the left and right inner surfaces of the box (4) at both ends. The front and rear parts of each clamping plate (10) inside the box (4) are slidably sleeved on the front and rear upright plates (13) through sliding holes (14).

5. A support bracket for bridge jacking construction according to claim 1, characterized in that, The connecting rod (12) is a round rod with a diameter that matches the width of the corresponding inclined hole (11). The peripheral wall of the connecting rod (12) and the side of the corresponding inclined hole (11) are in sliding contact. The diameter of the connecting rod (12) is smaller than the thickness of the clamping plate (10). The upper end of the inclined hole (11) at the front of the left clamping member is located directly in front of the corresponding support plate (6).

6. A support bracket for bridge jacking construction according to claim 1, characterized in that, Both the support plate (6) and the clamping plate (10) are made of metal fiber reinforced material.

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