Device for adjusting height of bridge cast-in-place support

Abstract

The utility model discloses a device for adjusting the height of a bridge cast-in-place support, which relates to the technical field of bridge engineering, and comprises an upper support, a lower support and a linking device, a plurality of adjusters are rotatably mounted on the linking device, each adjuster comprises a main body box, a fixed disc is fixedly mounted on the main body box, and the fixed disc is fixed on the upper support. A sliding disc is installed on the main box in a sliding mode, adjusting scales are arranged on the face, provided with the sliding disc, of the main box, a hydraulic outer cylinder is arranged on the fixed disc, a hydraulic sliding column is installed on the hydraulic outer cylinder in a sliding mode, the other end of the hydraulic sliding column is fixedly connected with the sliding disc, and the hydraulic sliding column is arranged in the hydraulic outer cylinder. According to the device, the distance between a fixed disc and a sliding disc is accurately controlled through adjusting scales on a main body box and a hydraulic screw rod, meanwhile, the inclination angle and height of an upper support can be adjusted by adjusting a plurality of hexagonal rotating rods, and the construction precision and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering technology, specifically a device for adjusting the height of cast-in-place bridge supports. Background Technology

[0002] In bridge construction, cast-in-place beams are widely used due to their advantages such as good integrity and strong load-bearing capacity. Cast-in-place bridges are usually composed of multiple components, including the main support structure, formwork system, and steel reinforcement cage. The main support structure is responsible for supporting the weight of the entire structure. At the same time, when installing the main support structure, attention must be paid to the height, verticality, and other values ​​between the supports, which are related to the installation of the formwork system and the quality of subsequent bridge pouring. Therefore, the supports need to be constantly adjusted during the installation process.

[0003] Chinese invention patent with announcement number CN110499713B discloses a device for adjusting the height of a bridge cast-in-place support. This device adjusts the height of a simply supported beam constructed by the support method with a certain degree of accuracy through a combination of screw and motor. The motor drives the drive wheel and driven wheel to rotate, which lifts the support to the elevation measuring point and accurately positions the formwork elevation.

[0004] In the aforementioned devices and existing technologies, the adjustment of large integral supports still relies on the prior leveling and hardening of the bridge installation ground. Furthermore, in order to ensure the integrity of the support installation height during construction, the requirements for the installation ground are relatively high. This results in a significant waste of manpower and resources in preparation work before the bridge support is assembled. At the same time, existing methods for adjusting the height of the main support body often suffer from problems such as cumbersome operation, low precision, and low efficiency, making it difficult to meet the needs of modern bridge construction. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model proposes the following technical solution:

[0006] A device for adjusting the height of a cast-in-place bridge support includes an upper support, a lower support, and a connecting device. Multiple adjusters are rotatably mounted on the connecting device, and each adjuster is installed between the upper and lower supports. Each adjuster includes a main body box, on which a fixed plate is fixedly mounted. A sliding plate is slidably mounted on the main body box. An adjustment scale is provided on one side of the main body box where the sliding plate is mounted, for observing the distance between the sliding plate and the fixed plate. A hydraulic outer cylinder is mounted on the fixed plate, and a hydraulic sliding column is slidably mounted on the hydraulic outer cylinder. The other end of the hydraulic sliding column is fixedly connected to the sliding plate. The hydraulic sliding column is disposed inside the hydraulic outer cylinder, and the hydraulic sliding column and the hydraulic outer cylinder are positioned between the sliding plate and the fixed plate.

[0007] Furthermore, an upper fixed seat is fixedly installed on the sliding plate, and the upper fixed seat is also slidably connected to the main body box. An upper clamping clip is slidably installed on the sliding plate, and the upper clamping clip is connected to the upper fixed seat by bolts. The upper fixed seat and the upper clamping clip cooperate to clamp the upper support. An upper pre-tightening block is rotatably installed on the upper clamping clip, and an upper torsion spring is provided on the upper pre-tightening block. The other end of the upper torsion spring is provided on the upper clamping clip. The upper pre-tightening block is arc-shaped and contacts the upper support. The upper pre-tightening block and the upper torsion spring provide pre-tightening force to the upper clamping clip during use.

[0008] Furthermore, a lower fixing seat is fixedly installed on the fixing plate, and a lower clamping clip is slidably installed on the fixing plate. The lower clamping clip and the lower fixing seat are connected by multiple bolts. A lower preload block is rotatably installed on the lower clamping clip, and a lower torsion spring is provided on the lower preload block. The other end of the lower torsion spring is provided on the lower clamping clip. The lower preload block is arc-shaped and contacts the lower bracket. The lower preload block, in conjunction with the lower torsion spring, provides preload force to the lower clamping clip during installation.

[0009] Furthermore, an inner bracket is fixedly installed inside the main body box, and multiple hydraulic screws are slidably installed on the inner bracket. Multiple hydraulic gears are rotatably installed on the inner bracket, and the multiple hydraulic gears are meshed with each other. The hydraulic screws and hydraulic gears are connected by threads.

[0010] Furthermore, a hexagonal rotating rod is rotatably mounted on the main body box, and a main gear is fixedly mounted on the hexagonal rotating rod. The main gear meshes with the inner bracket closest to the hexagonal rotating rod.

[0011] Furthermore, an inner pressure plate is rotatably mounted on one end of the hydraulic screw, and multiple small hydraulic cylinders are fixedly installed inside the main body box. The inner pressure plate is slidably connected to the inner wall of the small hydraulic cylinders. Hydraulic oil is provided inside the small hydraulic cylinders. A manifold is provided at the end of the small hydraulic cylinder away from the inner pressure plate. Delivery pipes are fixedly installed at both ends of the manifold, and the other end of the delivery pipe is located inside the outer hydraulic cylinder.

[0012] The advantages of this utility model compared with the prior art are: (1) This device can accurately control the distance between the fixed plate and the sliding plate by adjusting the scale on the main body box and the hydraulic screw. At the same time, by adjusting multiple hexagonal rotating rods, the tilt angle and height of the upper support can be adjusted, thereby improving the construction accuracy and efficiency; (2) This device can enhance the stability of the connection between the upper and lower supports by setting an upper torsion spring and an upper pre-tightening block on the upper clamping card. At the same time, setting a lower torsion spring and a lower pre-tightening block on the lower clamping card can also enhance the stability of the connection between the lower clamping card and the lower support. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the connecting device and regulator of this utility model.

[0015] Figure 3 This is a schematic diagram of the fixed disk and sliding disk structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the upper and lower locking mechanisms of this utility model.

[0017] Figure 5 This is a cross-sectional structural diagram of the main body box, hydraulic outer cylinder, upper clamping clamp, upper pre-tightening block, upper fixed seat, lower fixed seat, lower clamping clamp, and small hydraulic cylinder of this utility model.

[0018] Figure 6 This is a cross-sectional structural diagram of the main body box of this utility model.

[0019] Reference numerals: 101-Upper bracket; 102-Lower bracket; 103-Adjuster; 104-Linking device; 201-Main body box; 202-Fixed plate; 203-Hydraulic outer cylinder; 204-Sliding plate; 205-Upper clamping clip; 206-Upper preload block; 207-Upper fixed seat; 208-Lower fixed seat; 209-Lower clamping clip; 210-Lower preload block; 211-Hydraulic sliding column; 301-Hexagonal rotating rod; 302-Main gear; 303-Hydraulic screw; 304-Inner bracket; 305-Hydraulic gear; 306-Small hydraulic cylinder; 307-Inner pressure plate; 308-Collection pipe; 309-Conveying pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0021] like Figures 1 to 3 As shown, a device for adjusting the height of a cast-in-place bridge support includes an upper support 101, a lower support 102, and a connecting device 104. The connecting device 104 is a flexible component that can be stretched and bent. The connecting device 104 can also be replaced by an iron chain. Multiple adjusters 103 are rotatably mounted on the connecting device 104. The adjusters 103 are installed between the upper support 101 and the lower support 102 and are used to adjust the distance between the upper support 101 and the lower support 102.

[0022] like Figures 2 to 5As shown, the adjuster 103 includes a main body box 201, on which a fixed plate 202 is fixedly mounted. A sliding plate 204 is slidably mounted on the main body box 201. An adjustment scale is provided on the side of the main body box 201 where the sliding plate 204 is mounted, for observing the distance between the sliding plate 204 and the fixed plate 202. An upper fixed seat 207 is fixedly mounted on the sliding plate 204, and the upper fixed seat 207 is also slidably connected to the main body box 201. The upper fixed seat 207 can contact the upper support 101. An upper clamping clip 205 is slidably mounted on the sliding plate 204, and the upper clamping clip 205 can contact the upper support 101. The upper clamping clip 205 and the upper fixed seat 207 are connected by bolts. The upper fixed seat 207 can cooperate with the upper clamping clip 205 to clamp the upper support 101. During use, the upper support 101 and the upper fixed seat 204 can be clamped together. The contact positions of the fixed seat 207 and the upper clamping clip 205 are provided with slots or other reinforced connection structures. During assembly, the upper fixed seat 207 first contacts the upper bracket 101, and then the upper clamping clip 205 contacts the lower bracket 102. Bolts are then used to fix the upper clamping clip 205 to the upper fixed seat 207. The upper clamping clip 205 and the upper fixed seat 207 connect the sliding disc 204 to the upper bracket 101. An upper pre-tightening block 206 is rotatably mounted on the upper clamping clip 205. An upper torsion spring is provided on the upper pre-tightening block 206, with the other end of the upper torsion spring located on the upper clamping clip 205. The upper pre-tightening block 206 is arc-shaped and contacts the upper bracket 101. The upper pre-tightening block 206, in conjunction with the upper torsion spring, provides pre-tightening force to the upper clamping clip 205 during use, further preventing the bolts connecting the upper clamping clip 205 and the upper fixed seat 207 from loosening.

[0023] like Figures 2 to 5As shown, a lower fixing seat 208 is fixedly installed on the fixing plate 202. The lower fixing seat 208 can contact the lower support 102. A lower closing clip 209 is also slidably installed on the fixing plate 202. The lower closing clip 209 and the lower fixing seat 208 are connected by multiple bolts. During use, a slot or other reinforcing connection structure can be set at the contact position between the lower support 102 and the lower fixing seat 208 and the lower closing clip 209. During assembly, the lower fixing seat 208 is first brought into contact with the lower support 102, and then the lower closing clip 209 is brought into contact with the lower support 102. Finally, the lower closing clip is secured with bolts. The lower clamp 209 is fixed to the lower fixed base 208. The lower clamp 209 and the lower fixed base 208 connect the fixed plate 202 and the lower bracket 102. The lower clamp 209 is rotatably mounted with a lower preload block 210. The lower preload block 210 is provided with a lower torsion spring. The other end of the lower torsion spring is provided on the lower clamp 209. The lower preload block 210 is arc-shaped and can contact the lower bracket 102. The lower preload block 210, together with the lower torsion spring, provides a preload force to the lower clamp 209 during installation, further preventing the bolts connecting the lower clamp 209 and the lower fixed base 208 from loosening.

[0024] like Figures 3 to 6As shown, a hydraulic outer cylinder 203 is provided on the fixed plate 202, and a hydraulic sliding column 211 is slidably mounted on the hydraulic outer cylinder 203. The other end of the hydraulic sliding column 211 is fixedly connected to the sliding plate 204. The hydraulic sliding column 211 is disposed inside the hydraulic outer cylinder 203, and the hydraulic sliding column 211 and the hydraulic outer cylinder 203 are disposed between the sliding plate 204 and the fixed plate 202. An inner bracket 304 is fixedly installed inside the main body box 201, and multiple hydraulic screws 303 are slidably mounted on the inner bracket 304. Multiple hydraulic gears 305 are rotatably mounted on the inner support 304. These gears are meshed with each other. The threads on adjacent hydraulic screws 303 have opposite directions of rotation. The hydraulic screws 303 and hydraulic gears 305 are connected by threads. An inner pressure plate 307 is rotatably mounted on one end of each hydraulic screw 303. Multiple small hydraulic cylinders 306 are fixedly installed inside the main body box 201. The inner pressure plate 307 is slidably connected to the inner wall of each small hydraulic cylinder 306. Hydraulic oil is contained within each small hydraulic cylinder 306. A collecting pipe 308 is provided at the end of 306 away from the inner pressure plate 307. Conveying pipes 309 are fixedly installed at both ends of the collecting pipe 308. The other end of the conveying pipe 309 is located inside the hydraulic outer cylinder 203. A hexagonal rotating rod 301 is rotatably mounted on the main body box 201. A main gear 302 is fixedly mounted on the hexagonal rotating rod 301. The main gear 302 meshes with the inner support 304 closest to the hexagonal rotating rod 301. When the hexagonal rotating rod 301 is manually rotated, the main gear 302 will drive all the inner supports 304. When rotated, the inner support 304 drives the hydraulic screw 303 to move closer to the manifold 308. This causes the hydraulic screw 303 to squeeze the hydraulic oil in the small hydraulic cylinder 306 through the inner pressure plate 307, allowing the hydraulic oil to enter the outer hydraulic cylinder 203 through the manifold 308 and the delivery pipe 309. This allows the hydraulic oil in the outer hydraulic cylinder 203 to drive the hydraulic sliding column 211, the sliding plate 204, and the upper fixed seat 207 to slide on the main body box 201, thereby adjusting the distance between the sliding plate 204 and the fixed plate 202.

[0025] Working principle: During the installation of the bridge support body, this device is installed between the connecting columns of the upper support 101 and the lower support 102. The lower fixed seat 208 and the lower clamping clip 209 on this device are connected to the lower support 102, and the upper fixed seat 207 and the upper clamping clip 205 are connected to the upper support 101. During the connection, the lower support 102, the upper support 101 and this device are fixedly connected by bolts. When installing, attention should be paid to the orientation of the main body box 201 on the upper support 101. After this device is fixed, it should not obstruct the use of other engineering equipment. In the initial state, the distance between the sliding plate 204 and the fixed plate 202 is at its minimum.

[0026] After the main support of the bridge is installed, if the main support is tilted or the height of a certain part of the main support is different, the worker can rotate the hexagonal rotating rod 301 on the side that needs to be adjusted. The wrench is engaged with the hexagonal rotating rod 301. When the hexagonal rotating rod 301 is rotated, it will drive the hydraulic oil in the small hydraulic cylinder 306 into the hydraulic outer cylinder 203 through the main gear 302, inner support 304, and inner pressure plate 307. The hydraulic oil will drive the hydraulic sliding column 211, sliding plate 204, and upper fixed seat 207 to move away from the fixed plate 202. During the movement, the distance between the sliding plate 204 and the fixed plate 202 can be displayed by the adjustment scale on the main body box 201 for easy numerical adjustment.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A device for adjusting the height of a cast-in-place bridge support, comprising an upper support (101), a lower support (102), and a connecting device (104), characterized in that: Multiple adjusters (103) are rotatably mounted on the linking device (104). The adjusters (103) are installed between the upper support (101) and the lower support (102). Each adjuster (103) includes a main body housing (201), on which a fixed plate (202) is fixedly mounted. A sliding plate (204) is slidably mounted on the main body housing (201). An adjustment scale is provided on the side of the main body housing (201) where the sliding plate (204) is mounted, for observing the sliding plate. The distance between the sliding disk (204) and the fixed disk (202) is specified. A hydraulic outer cylinder (203) is provided on the fixed disk (202). A hydraulic sliding column (211) is slidably installed on the hydraulic outer cylinder (203). The other end of the hydraulic sliding column (211) is fixedly connected to the sliding disk (204). The hydraulic sliding column (211) is located inside the hydraulic outer cylinder (203). The hydraulic sliding column (211) and the hydraulic outer cylinder (203) are located between the sliding disk (204) and the fixed disk (202).

2. The device for adjusting the height of a cast-in-place bridge support according to claim 1, characterized in that: An upper fixing seat (207) is fixedly installed on the sliding plate (204), and the upper fixing seat (207) is also slidably connected to the main body box (201). An upper clamping clip (205) is slidably installed on the sliding plate (204), and the upper clamping clip (205) is connected to the upper fixing seat (207) by bolts. The upper fixing seat (207) and the upper clamping clip (205) cooperate to clamp the upper bracket (101). An upper pre-tightening block (206) is rotatably installed on the upper clamping clip (205). An upper torsion spring is provided on the upper pre-tightening block (206), and the other end of the upper torsion spring is provided on the upper clamping clip (205). The upper pre-tightening block (206) is arc-shaped and contacts the upper bracket (101). The upper pre-tightening block (206) cooperates with the upper torsion spring to provide pre-tightening force to the upper clamping clip (205) during use.

3. The device for adjusting the height of a cast-in-place bridge support according to claim 1, characterized in that: A lower fixing seat (208) is fixedly installed on the fixing plate (202), and a lower clamping clip (209) is also slidably installed on the fixing plate (202). The lower clamping clip (209) and the lower fixing seat (208) are connected by multiple bolts. A lower preload block (210) is rotatably installed on the lower clamping clip (209). A lower torsion spring is provided on the lower preload block (210), and the other end of the lower torsion spring is provided on the lower clamping clip (209). The lower preload block (210) is arc-shaped and contacts the lower bracket (102). The lower preload block (210) cooperates with the lower torsion spring to provide preload force to the lower clamping clip (209) during installation.

4. The device for adjusting the height of a cast-in-place bridge support according to claim 1, characterized in that: An inner bracket (304) is fixedly installed inside the main body box (201). Multiple hydraulic screws (303) are slidably installed on the inner bracket (304). Multiple hydraulic gears (305) are rotatably installed on the inner bracket (304). The multiple hydraulic gears (305) are meshed with each other. The hydraulic screws (303) and the hydraulic gears (305) are connected by threads.

5. The device for adjusting the height of a cast-in-place bridge support according to claim 4, characterized in that: A hexagonal rotating rod (301) is rotatably mounted on the main body box (201), and a main gear (302) is fixedly mounted on the hexagonal rotating rod (301). The main gear (302) meshes with the inner bracket (304) closest to the hexagonal rotating rod (301).

6. The device for adjusting the height of a cast-in-place bridge support according to claim 4, characterized in that: An inner pressure plate (307) is rotatably mounted on one end of the hydraulic screw (303). Multiple small hydraulic cylinders (306) are fixedly installed inside the main body box (201). The inner pressure plate (307) is slidably connected to the inner wall of the small hydraulic cylinder (306). Hydraulic oil is provided inside the small hydraulic cylinder (306). A manifold (308) is provided at one end of the small hydraulic cylinder (306) away from the inner pressure plate (307). A delivery pipe (309) is fixedly installed at both ends of the manifold (308). The other end of the delivery pipe (309) is located inside the hydraulic outer cylinder (203).

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