Supporting device for civil bridge construction

Abstract

The utility model relates to a supporting device for civil bridge construction, which comprises a foundation pit bottom and a supporting mechanism arranged above the foundation pit bottom and used for limiting an assembly type pier column, and an auxiliary assembly used for supporting the supporting mechanism in an auxiliary mode is arranged on the lower portion of the supporting mechanism. The auxiliary assembly comprises a fixing frame and an inserting plate which is arranged in the fixing frame and can stretch out and draw back up and down. When the inserting plate moves downwards, the inserting plate is inserted into the foundation pit bottom to improve stability. The supporting device is reasonable in design and simple in structure, assembly type pier columns with different diameters are supported and fixed through the supporting assembly, when the assembly type pier columns shake and cause the supporting assembly to shake, the auxiliary assembly is used for strengthening fixing of the position of the supporting assembly, the phenomenon that the supporting assembly shakes and topples over is prevented, and the supporting device is convenient to use. According to the supporting assembly, the stability of the supporting assembly is improved, stable supporting of the fabricated pier column is improved, the supporting assembly is mainly used for supporting the prefabricated fabricated pier column, and large disturbance is prevented.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering and bridge technology, and in particular to a support device for civil engineering and bridge construction. Background Technology

[0002] In urban bridge engineering, it is necessary to first excavate the bottom of the foundation pit. The bottom of the foundation pit is used for the construction of the abutment, bridge pier and enlarged foundation. For example, when installing some prefabricated piers, it is necessary to carry out targeted support for the prefabricated piers on the bottom of the excavated foundation pit according to the different depth of the foundation pit bottom and the soil characteristics of the foundation pit bottom wall. Therefore, corresponding support devices are needed to support and fix the prefabricated piers.

[0003] By comparing a support device for civil engineering bridge construction with patent publication number CN221345295U, it is found that in this solution, the device achieves the purpose of limiting and fixing cylindrical bridge piers, improving the stability of the device and the fixing effect of the support device. However, when supporting the bottom of the foundation pit or the bridge pier, due to the construction work above the bottom of the foundation pit, a large number of mechanical equipment will frequently move and work, which may cause significant vibration to the support device and the bottom of the foundation pit. This may cause the soil to loosen, which may lead to the loosening of the support device. As a result, the support device reduces its grip and support force on the bottom of the foundation pit, which may lead to landslides and other safety hazards. Utility Model Content

[0004] This utility model improves upon the above-mentioned problems. Specifically, the technical problem to be solved by this utility model is to provide a support device for civil engineering bridge construction, which is beneficial to improving the stability of the support device at the bottom of the foundation pit and enhancing safety.

[0005] This utility model is constructed as follows: it includes a foundation pit bottom and a support mechanism disposed above the foundation pit bottom for limiting the prefabricated pier column. The lower part of the support mechanism is provided with an auxiliary component for auxiliary support of the support mechanism. The auxiliary component includes a fixed frame and an insert plate disposed in the fixed frame and capable of vertical extension and retraction. When the insert plate moves down, it is inserted into the foundation pit bottom to improve stability.

[0006] Furthermore, the auxiliary component also includes a lower pressure plate slidably disposed within the fixed frame. Two insert plates are symmetrically arranged, with the upper ends of the two insert plates rotatably connected to the lower end of the lower pressure plate. A torsion spring is connected between the rotating end of the insert plate and the lower pressure plate. A compression spring is connected between the upper end of the lower pressure plate and the fixed frame. A drive component is provided at the upper end of the fixed frame for driving the lower pressure plate to move the insert plates downward.

[0007] Furthermore, the drive assembly includes a lower oil cavity opened at the upper end of the fixed frame, a lower pressure column is slidably installed inside the lower oil cavity, the lower end of the lower pressure column is fixedly connected to the lower pressure plate, an upper oil cavity is opened at the end of the clamping arm of the support mechanism near the prefabricated pier, a clamping block is slidably installed inside the upper oil cavity, an arc-shaped protrusion is provided at the end of the clamping block near the prefabricated pier, a plurality of telescopic columns are provided between the clamping block and the inner wall of the upper oil cavity, a return spring is provided on the outside of the telescopic columns, and an oil pipe is connected between the upper oil cavity and the lower oil cavity.

[0008] Furthermore, the lower pressure plate is provided with a limiting component on the side away from the prefabricated pier for unidirectional limiting of the lower pressure plate.

[0009] Furthermore, the limiting component includes a connecting frame fixed to the fixed frame at the end away from the prefabricated pier. A limiting toothed plate is provided inside the connecting frame near the lower pressure plate. Multiple limiting springs are connected between the limiting toothed plate and the connecting frame. A limiting block is fixed to the lower pressure plate at the end near the limiting toothed plate. Multiple teeth are fixed to the limiting toothed plate at the end near the limiting block. The upper end of the teeth is arc-shaped, and the lower end of the limiting block is arc-shaped.

[0010] Furthermore, the support mechanism includes a support component for supporting and fixing the prefabricated pier and a lifting component for raising and lowering the support component.

[0011] Furthermore, the support assembly includes a slide rail disposed above the bottom of the foundation pit near the prefabricated pier. A lifting seat is slidably installed inside the slide rail, and a clamping seat is slidably installed inside the lifting seat. A cylinder is provided between the clamping seat and the lifting seat. Two symmetrical clamping arms are rotatably installed at one end of the clamping seat near the prefabricated pier. The clamping arms are arc-shaped, and a rotary motor is installed at the rotating end of the clamping arms.

[0012] Furthermore, the lifting assembly includes a slide rail disposed above the bottom of the foundation pit near the prefabricated pier, a lifting screw is rotatably installed in the slide rail groove, a lifting motor is installed at the rotating end of the lifting screw, and the lifting seat is threadedly connected to the lifting screw.

[0013] Furthermore, a pull plate is fixed to the front end of the limiting tooth plate, and the pull plate is slidably connected to the connecting frame.

[0014] Furthermore, the oil passage is a telescopic flexible hose.

[0015] Compared with the prior art, this utility model has the following beneficial effects: The device has a simple structure, reasonable design, and is easy to use. In urban bridge engineering, corresponding support devices are needed to support and fix the bottom of the foundation pit. The support components support and fix prefabricated piers of different diameters. When construction above the foundation pit causes the soil at the bottom of the foundation pit to loosen, the prefabricated piers will shake and the support components will shake. The auxiliary components are used to strengthen the fixation of the position of the support components, prevent the support components from shaking and falling, increase the stability of the support components, and improve the stable support for the prefabricated piers. It is mainly for the support of prefabricated piers, preventing large disturbances and improving safety. Attached Figure Description

[0016] Figure 1 This is a spatial perspective view of a support device for civil engineering bridge construction according to an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the support mechanism in an embodiment of the present utility model;

[0018] Figure 3 This is a cross-sectional view of the internal structure of the support component of the support device for civil bridge construction according to an embodiment of this utility model;

[0019] Figure 4 This is a cross-sectional view of the internal structure of the auxiliary component in an embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the auxiliary component in an embodiment of this utility model.

[0021] In the diagram: 100, bottom of the foundation pit; 200, prefabricated pier; 301, slide rail; 302, lifting motor; 303, lifting screw; 304, lifting seat; 305, cylinder; 306, clamping seat; 307, clamping arm; 308, rotary motor; 309, telescopic column; 310, clamping block; 311, fixing frame; 312, lower oil chamber; 313, lower pressure column; 314, lower pressure plate; 315, limit block; 316, limit tooth plate; 317, insert plate; 319, torsion spring; 320, oil pipe; 321, upper oil chamber. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] Example: Figures 1-5As shown in the present invention, a support device for civil bridge construction is provided, including a pit bottom 100, an assembled pier 200 above the pit bottom 100, and a support mechanism for supporting and fixing the assembled pier 200. The support mechanism is located outside the assembled pier 200. The lower part of the support mechanism is provided with an auxiliary component for further supporting the support mechanism. The auxiliary component includes a fixed frame 311 and an insert plate 317 that is disposed in the fixed frame and can be extended and retracted vertically. When the insert plate moves down, it is inserted into the pit bottom to improve stability.

[0024] In this embodiment, the support mechanism includes a support component for supporting and fixing the prefabricated pier 200 and a lifting component for raising and lowering the support component.

[0025] The lifting assembly includes a slide rail 301 located above the bottom 100 of the foundation pit and near the prefabricated pier 200. A lifting screw 303 is rotatably installed inside the slide rail 301, and a lifting motor 302 is installed at the rotating end of the lifting screw 303.

[0026] The support assembly includes a lifting seat 304 disposed inside the slide rail 301. The lifting seat 304 is threadedly connected to the lifting screw 303. A clamping seat 306 is slidably installed inside the lifting seat 304. A cylinder 305 is provided between the clamping seat 306 and the lifting seat 304. Two symmetrical clamping arms 307 are rotatably installed at one end of the clamping seat 306 near the prefabricated pier 200. The clamping arms 307 are arc-shaped. A rotary motor 308 is installed at the rotating end of the clamping arms 307. An auxiliary assembly for providing auxiliary support to the slide rail 301 is provided below the slide rail 301.

[0027] The auxiliary components include two symmetrically arranged fixed frames 311 at the lower end of the slide rail 301. A lower pressure plate 314 is slidably installed inside the fixed frame 311. Two symmetrical insert plates 317 are rotatably installed at the lower end of the lower pressure plate 314. A torsion spring 319 is connected between the rotating end of the insert plate 317 and the lower pressure plate 314. A compression spring is connected between the upper end of the lower pressure plate 314 and the fixed frame 311. A driving component is provided at the upper end of the fixed frame 311 to drive the lower pressure plate 314 to move the insert plates 317 downward. A limiting component is provided on the side of the lower pressure plate 314 away from the prefabricated pier 200 to limit the lower pressure plate 314 in one direction.

[0028] The drive assembly includes a lower oil cavity 312 located at the upper end of the fixed frame 311. A lower pressure column 313 is slidably installed inside the lower oil cavity 312. The lower end of the lower pressure column 313 is fixedly connected to the lower pressure plate 314. An upper oil cavity 321 is provided at one end of the clamping arm 307 near the prefabricated pier 200. A clamping block 310 is slidably installed inside the upper oil cavity 321. An arc-shaped protrusion is provided at one end of the clamping block 310 near the prefabricated pier 200. Multiple telescopic columns 309 are provided between the clamping block 310 and the inner wall of the upper oil cavity 321. The telescopic columns can move along the guide holes provided in the inner wall of the upper oil cavity. A return spring is provided on the outside of the telescopic column 309. An oil pipe 320 is connected between the upper oil cavity 321 and the lower oil cavity 312. The oil pipe 320 is a telescopic flexible hose.

[0029] The limiting component includes a connecting frame fixed to the end of the fixed frame 311 away from the prefabricated pier column 200. A limiting toothed plate 316 is provided inside the connecting frame near the lower pressure plate 314. Multiple limiting springs are connected between the limiting toothed plate 316 and the connecting frame. A limiting block 315 is fixed to the end of the lower pressure plate 314 near the limiting toothed plate 316. Multiple teeth are fixed to the end of the limiting toothed plate 316 near the limiting block 315. The upper end of the teeth is arc-shaped, and the lower end of the limiting block 315 is arc-shaped. A pull plate is fixed to the front end of the limiting toothed plate 316, and the pull plate is slidably connected to the connecting frame.

[0030] In urban bridge engineering, appropriate support devices are needed to support and fix the bottom 100 of the foundation pit. Support components are used to support and fix prefabricated piers 200 of different diameters. When construction above the bottom 100 of the foundation pit causes the soil above the bottom 100 of the foundation pit to loosen, the prefabricated piers 200 may sway, causing the support components to sway. Auxiliary components are used to strengthen the fixation of the position of the support components, prevent the support components from swaying and falling, increase the stability of the support components, and improve the stable support for the prefabricated piers 200. This is mainly for the support of prefabricated piers 200 to prevent large disturbances.

[0031] Working principle: When supporting the prefabricated assembled pier 200, the assembled pier 200 is first inserted into the bottom 100 of the foundation pit. Soil is used to fill the bottom of the assembled pier 200 to achieve pre-fixation of the assembled pier 200. Then, the lifting motor 302 is driven to drive the lifting screw 303 to rotate, which in turn drives the lifting seat 304 to move up and down to adjust the support height of the assembled pier 200. Then, the cylinder 305 is driven to drive the clamping seat 306 to move closer to the assembled pier 200. Then, the two front and rear rotary motors 308 are driven to drive the two front and rear clamping arms 307 to clamp and fix the assembled pier 200, thus supporting the assembled pier 200.

[0032] When construction is carried out above the bottom 100 of the foundation pit, the soil above the bottom 100 of the foundation pit may become loose, which may cause the position of the slide rail 301 to become loose, and thus may reduce the support stability of the clamping arm 307 on the prefabricated pier 200. When the prefabricated pier 200 shakes, it compresses the clamping block 310 in the upper oil chamber 321 of the clamping arm 307, driving the hydraulic oil in the upper oil chamber 321 to be sent into the lower oil chamber 312 through the oil pipe 320, thereby driving the lower pressure column 313 to move down, driving the lower pressure plate 314 to move down, and then driving the two insert plates 317 to move down, so that the two insert plates 317 are inserted into the soil above the bottom 100 of the foundation pit, increasing the contact area with the soil, thereby increasing the support stability of the slide rail 301, and thus improving the clamping stability of the clamping arm 307 on the prefabricated pier 200.

[0033] When the lower pressure plate 314 moves downward, the limiting block 315 at the end of the lower pressure plate 314 near the limiting tooth plate 316 will press against the limiting tooth plate 316, so that the limiting tooth plate 316 can unidirectionally limit the limiting block 315, limit the position of the lower pressure plate 314, and limit the position of the two insert plates 317, preventing the insert plates 317 from retracting upward. When the prefabricated pier 200 needs to be maintained and reinforced later or when new materials are used for reinforcement, the prefabricated pier 200 can use this device throughout its entire life cycle.

[0034] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0035] Meanwhile, if the present invention discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, the mutually fixed connection can also be replaced by an integral structure (e.g., manufactured by casting process) (except where it is obviously impossible to use an integral forming process).

[0036] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0037] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A support device for civil bridge construction, characterized in that, It includes a pit bottom (100) and a support mechanism set above the pit bottom (100) for limiting the prefabricated pier (200). The lower part of the support mechanism is provided with an auxiliary component for auxiliary support of the support mechanism. The auxiliary component includes a fixed frame (311) and an insert plate (317) set in the fixed frame and capable of vertical extension. When the insert plate moves down, it is inserted into the pit bottom to improve stability.

2. The support device for civil bridge construction according to claim 1, characterized in that, The auxiliary component also includes a lower pressure plate (314) slidably disposed within the fixed frame (311). Two insert plates are symmetrically arranged, with the upper ends of the two insert plates rotatably connected to the lower ends of the lower pressure plate. A torsion spring (319) is connected between the rotating end of the insert plate (317) and the lower pressure plate (314). A compression spring is connected between the upper end of the lower pressure plate (314) and the fixed frame (311). The upper end of the fixed frame (311) is provided with a drive component for driving the lower pressure plate (314) to move the insert plate (317) downward.

3. A support device for civil bridge construction according to claim 2, characterized in that, The drive assembly includes a lower oil cavity (312) opened at the upper end of the fixed frame (311). A lower pressure column (313) is slidably installed inside the lower oil cavity (312). The lower end of the lower pressure column (313) is fixedly connected to the lower pressure plate (314). An upper oil cavity (321) is opened at the end of the clamping arm (307) of the support mechanism near the prefabricated pier (200). A clamping block (310) is slidably installed inside the upper oil cavity (321). An arc-shaped protrusion is provided at the end of the clamping block (310) near the prefabricated pier (200). A plurality of telescopic columns (309) are provided between the clamping block (310) and the inner wall of the upper oil cavity (321). A return spring is provided on the outside of the telescopic column (309). An oil pipe (320) is connected between the upper oil cavity (321) and the lower oil cavity (312).

4. A support device for civil bridge construction according to claim 2, characterized in that, The lower pressure plate (314) is provided with a limiting component on the side away from the prefabricated pier (200) for unidirectional limiting of the lower pressure plate (314).

5. A support device for civil bridge construction according to claim 4, characterized in that, The limiting component includes a connecting frame fixed to the fixed frame (311) at the end away from the prefabricated pier (200). A limiting tooth plate (316) is provided inside the connecting frame near the lower pressure plate (314). Multiple limiting springs are connected between the limiting tooth plate (316) and the connecting frame. A limiting block (315) is fixed to the lower pressure plate (314) near the limiting tooth plate (316). Multiple teeth are fixed to the limiting tooth plate (316) near the limiting block (315). The upper end of the teeth is arc-shaped, and the lower end of the limiting block (315) is arc-shaped.

6. A support device for civil bridge construction according to claim 1, characterized in that, The support mechanism includes a support component for supporting and fixing the prefabricated pier (200) and a lifting component for raising and lowering the support component.

7. A support device for civil bridge construction according to claim 6, characterized in that, The support assembly includes a slide rail (301) disposed above the bottom of the pit (100) near the prefabricated pier (200). A lifting seat (304) is slidably installed inside the slide rail (301). A clamping seat (306) is slidably installed inside the lifting seat (304). A cylinder (305) is provided between the clamping seat (306) and the lifting seat (304). Two symmetrical clamping arms (307) are rotatably installed at one end of the clamping seat (306) near the prefabricated pier (200). The clamping arms (307) are arc-shaped, and a rotary motor (308) is installed at the rotating end of the clamping arms (307).

8. A support device for civil bridge construction according to claim 7, characterized in that, The lifting assembly includes a slide rail (301) disposed above the bottom of the pit (100) near the prefabricated pier (200). A lifting screw (303) is rotatably installed in the slide groove of the slide rail (301). A lifting motor (302) is installed at the rotating end of the lifting screw (303). The lifting seat (304) is threadedly connected to the lifting screw (303).

9. A support device for civil bridge construction according to claim 5, characterized in that, A pull plate is fixed to the front end of the limiting tooth plate (316), and the pull plate is slidably connected to the connecting frame.

10. A support device for civil bridge construction according to claim 3, characterized in that, The oil pipe (320) is a telescopic hose.

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