Reinforced bridge casting support device

Abstract

To provide a reinforced bridge casting support device that stably supports bridge formwork, can accurately meet various construction needs, and can improve the quality and efficiency of bridge casting. [Solution] The main components include a fixed base 1 with fixing holes and wedge nails, a movable platform is provided on the base that can move relative to it, and a support unit 5 that can move up and down is mounted on the movable platform, the support units are removably connected to each other by support plates 6, and further equipped with a lifting adjustment mechanism 7 and a spacing adjustment mechanism 8, the former of which adjusts the height of the support unit through the cooperation of a worm, worm gear, and rack and pinion, and the latter of which drives and displaces the movable platform using a rotating screw and a reverse screw to adjust the spacing.

Description

[Technical field]

[0001] The present application relates to the technical field of bridge engineering, and in particular to a reinforced bridge casting support device. [Background technology]

[0002] Pouring concrete is a critical step in the process of building a bridge, and the pouring process requires reliable support equipment to ensure the stability of the formwork and allow the concrete to be formed according to design requirements.

[0003] Traditional bridge casting support methods are relatively simple, and mainly use simple wooden frames or ordinary iron frames for support, but these traditional support methods have many shortcomings. On the one hand, the fixation is not stable, and in the complex construction site environment, it is easy to be displaced due to external impacts and ground vibrations, which causes deviations in the casting bridge structure and affects the quality of the bridge. On the other hand, the traditional support device is difficult to adjust in height and interval, and it is difficult to respond to the construction of bridges with different specifications and design requirements, and construction workers need to spend a lot of time and effort on adjustment. This is not only inefficient, but also likely to cause human errors due to frequent adjustment. In addition, the traditional support device is cumbersome to assemble and disassemble, which increases the construction period and increases the construction cost.

[0004] As bridge construction develops to higher standards and larger scale, there is an urgent need for more stable, easily adjustable, efficient and practical reinforced bridge casting support equipment. Summary of the Invention [Problem to be solved by the invention]

[0005] In order to solve the shortcomings of conventional bridge casting support technology, facilitate accurate adjustment of the height and spacing of support units, and facilitate the removal and connection of support plates, thereby improving the quality and efficiency of bridge casting construction, and reducing construction costs, the present application provides a reinforced bridge casting support device. [Means for solving the problem]

[0006] The technical solution is as follows: the device includes a fixed base, a fixing hole is drilled at the bottom of the fixed base, a wedge nail is provided in the fixing hole, the fixed base is provided with two movable tables that can move opposite to each other or apart, the two movable tables are located on both sides of the fixed base respectively and are distributed in pairs relative to the fixed base, each of the movable tables is provided with a support unit that can move up and down, a support plate is removably connected between the two support units, the fixed base is provided with a lifting adjustment mechanism that can adjust the height of the support unit, and the fixed base is provided with a distance adjustment mechanism that can adjust the distance between the two support units.

[0007] Optionally, the support unit includes a slide rod, the slide rod has a guide groove drilled therein, the guide groove is drilled in a dovetail shape, and the support plate is slidable within the guide groove.

[0008] Optionally, the lift adjustment mechanism includes a worm, a rotatable worm is provided on the top of the fixed base, a transmission rod is provided on one side of the movable table, a transmission drum is provided on the other side of the movable table, the transmission rod is inserted into the transmission drum, a worm gear is provided on the transmission drum, the worm has a second rotating wheel at one end and the other end is rotatably connected to the worm, a rack is provided on the support unit, and a gear that can mesh with the rack is provided on each of the opposing sides of the transmission rod and the transmission drum.

[0009] Optionally, the spacing adjustment mechanism includes a rotatable rotating screw, the rotating screw is rotatably connected to a central portion of a fixed base, and each side of the rotating screw is provided with a screw having an opposite rotation direction, each side of the rotating screw is screwed to a corresponding side of a moving base, and a first rotating wheel is provided in the central portion of the rotating screw.

[0010] Optionally, several slide rods are provided between the two movable stages, a slide groove is provided in each of the two movable stages, and a guide rod capable of sliding within the slide groove is provided on the fixed base.

[0011] Optionally, one end of said support plate is drilled with a connecting groove and the other end of said support plate is provided with a connecting protrusion insertable into the connecting groove of an adjacent support plate. Effect of the Invention

[0012] As described above, the present application has the following beneficial technical effects.

[0013] 1. The bottom of the fixed base is provided with matching fixing holes and wedge nails, so that the device can be firmly fixed on the ground, effectively resisting external impacts and ground vibrations, ensuring the stability of the support structure during the casting process, and ensuring the casting accuracy of the bridge.

[0014] 2. The lifting adjustment mechanism utilizes the cooperation of a worm, worm gear, transmission rod, transmission drum, rack and gear. By simply turning the second rotating wheel at one end of the worm, the operator can move the support unit up or down to quickly and accurately adjust it to the desired position to meet the height requirements of different bridge sections.

[0015] 3. The spacing adjustment mechanism rotates the screw and the screws on both sides with opposite rotation directions, and turns the first rotating wheel in the middle to move the movable platforms on both sides toward or away from each other, thereby precisely controlling the spacing between the two support units and meeting the width specification needs of different types of bridges. [Brief description of the drawings]

[0016] [Figure 1] FIG. 2 is a schematic diagram of the overall structure of the device. [Diagram 2] FIG. 2 is a schematic diagram of the overall structure of the device at a different viewing angle. [Diagram 3] FIG. [Figure 4] FIG. 2 is a partial cross-sectional schematic view of the present device. [Diagram 5] FIG. 2 is a schematic partial cross-sectional view of the device taken at a different viewing angle. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] The present application will now be described in further detail with reference to the drawings.

[0018] In one embodiment shown in FIG. 1 and FIG. 4, the fixed base 1 is made of high-strength steel as a whole, and has sufficient load strength and rigidity. The fixing holes 2 at the bottom are evenly distributed on both sides of the bottom, and the number is set reasonably according to the size of the base, but is generally 4 to 6, thereby ensuring stable support. The wedge nail 3 is made of alloy steel with excellent toughness, has a sharp tip, and has a screw at the stem, and the screw is inserted into the fixing hole 2 by engaging with the screw of the fixing hole 2, so that the wedge nail 3 is tightly connected to the fixed base 1. In this embodiment, the wedge nail 3 and the fixing hole 2 are tightly engaged with each other, so that the fixed base 1 is firmly fixed to the ground at the construction site, thereby preventing the device from being horizontally displaced by external force and providing a reliable foundation for the subsequent concrete driving support work. Each moving platform 4 is provided with a support unit 5 that can move up and down, and a support plate 6 is removably connected between the two support units 5. The support plate 6 is manufactured from high-strength aluminum alloy material and is long overall. The fixed base 1 is provided with a lifting adjustment mechanism 7 that can adjust the height of the support unit 5, and the fixed base 1 is provided with a spacing adjustment mechanism 8 that can adjust the spacing between the two support units 5.

[0019] The implementation principle of the above embodiment is as follows: When installing the device, the fixed base 1 is placed in a predetermined position, and a special tool is used to drive the wedge nail 3 into the fixing hole 2, and the frictional force and impaction between the wedge nail 3 and the ground can be used to stably hold the fixed base 1 without shaking, making the entire support device stable in the initial state.

[0020] In one embodiment shown with reference to Fig. 1, the slide rod 9 is vertical, made of stainless steel material, and slidably connected to the moving platform 4, and the guide groove 10 passes through the entire slide rod 9 in the vertical direction, the groove width is consistent with the width of the dovetail boss of the support plate 6, and the support plate 6 is made of aluminum alloy material. In this embodiment, the dovetail guide groove 10 restricts the support plate 6 to slide only along a certain direction, thereby ensuring the positional accuracy of the support plate 6 during the installation and adjustment process, preventing lateral displacement and falling off, and making the support system more stable and reliable.

[0021] The implementation principle of the above embodiment is as follows: When assembling the support plate 6, it is inserted along the guide groove 10. The support plate 6 is limited in the lateral direction by its dovetail structure, and can only move up and down along the guide groove 10. Even if it is subjected to impact from an external force, it will remain closely arranged with each other, ensuring the support effect.

[0022] Referring to FIG. 2, in one embodiment shown in FIG. 4, the worm 11 is made of high-strength alloy steel material precision-machined to have high surface hardness and high wear resistance, and is mounted by a bearing unit in a groove pre-machined on the top of the fixed base 1, and the bearing housing and the fixed base 1 are firmly connected by bolts, so that the worm 11 can rotate freely around its own axis, the cross section of the transmission rod 12 is made rectangular, a rectangular groove is opened inside the transmission drum 13, and one end of the transmission rod 12 is inserted into the rectangular groove in the transmission drum 13 of the adjacent moving table 4, the worm gear 14 is cast from bronze alloy and is coaxially fixed to the transmission drum 13 through an interference fit and accurately meshes with the worm 11, thereby ensuring stable and efficient transmission. The transmission rod 12 and the transmission drum 13 are both rotatably connected in the corresponding moving platform 4, the slide rod 9 of the support unit 5 is fixed to the rack 15 by welding, the gears 16 at the opposite ends of the transmission rod 12 and the transmission drum 13 are precisely meshed with the rack 15, and the second rotating wheel is fixedly connected to one end of the worm 11, so that the operator can easily apply force to the rotating worm 11. In this embodiment, when the second rotating wheel is rotated to rotate the worm 11, the worm 11 drives the worm gear 14 to rotate, and the worm gear 14 rotates the transmission drum 13, and the transmission drum 13 rotates the transmission rod 12. Because the gear 16 and the rack 15 are meshed, the gear 16 drives the slide rod 9 to move up and down along the slide rod 9, so that the height can be precisely adjusted to meet various needs for the height of the cross section of the bridge.

[0023] The implementation principle of the above embodiment is as follows: when an operator rotates the second rotating wheel, power is transmitted to the worm gear 14 via the worm 11, and the worm gear 14 drives the transmission drum 13 and the transmission rod 12, causing the gear 16 to roll along the rack 15, converting the rotational motion into a linear lifting motion of the support unit 5, and stably and accurately adjusting the support height.

[0024] In one embodiment shown with reference to Figures 1, 2 and 5, the pivot screw 17 is made of high-quality carbon steel and mounted in a mounting hole pre-machined in the center of the fixed base 1 by two deep groove ball bearings, so that the pivot screw 17 can rotate flexibly, and the screws with different rotation directions on both sides of it are respectively fitted with corresponding screw holes at the bottom of the two moving tables 4, and the first rotating wheel 18 is connected to the center of the pivot screw 17 by a flat key and protrudes from the surface of the fixed base 1, making it easy for the operator to hold it and rotate it. In this embodiment, the first rotating wheel 18 is rotated to rotate the pivot screw 17. According to the screw transmission principle, the moving tables 4 on both sides move opposite to each other or apart under the action of the screws with opposite rotation directions, so that the distance between the two support units 5 can be easily and accurately adjusted to meet the specifications of various bridge widths and provide simple and intuitive operation.

[0025] The implementation principle of the above embodiment is as follows: when the operator rotates the first rotating wheel 18, the rotating screw 17 rotates accordingly, and due to the self-locking property of the screw and the opposite screw directions on both sides, the moving platform 4 screwed with this screw moves linearly opposite or apart, thereby quickly and stably adjusting the interval of the support units 5 and providing suitability for various bridge constructions.

[0026] In one embodiment shown with reference to Figures 1 and 3, the slide rod 19 is made of a hollow tube of aluminum alloy material, both ends of which are fixedly connected to the opposing inner sides of the two movable tables 4, respectively, and the guide rod 21 of the fixed base 1 is laterally fixed to the top of the fixed base 1 by welding, and its length is determined according to the moving stroke of the movable table 4. In this embodiment, when the movable table 4 moves due to the action of the distance adjustment mechanism 8, the slide rod 19 expands and contracts accordingly, playing the role of supporting and limiting the relative position of the movable table 4, and avoiding the tilting and positional deviation of the movable table 4. In addition, the guide rod 21 slides in the slide groove 20 to guide the movable table 4 accurately and linearly, ensuring a stable and steady movement, and further improving the stability of the entire supporting device.

[0027] The implementation principle of the above embodiment is as follows: during the movement of the movable platform 4, the slide rod 19 utilizes its own elasticity to respond to the change in the distance of the movable platform 4 in real time, and the guide rod 21 slides along the slide groove 20, restricting the movable platform 4 to only move along a predetermined linear trajectory, thus avoiding deviation of the movable platform 4 caused by external force or uneven screw transmission, and ensuring reliable operation of the device.

[0028] In the embodiment shown with reference to Figures 1 and 2, the support plate 6 is a long plate-like structure, which is extruded using a high-strength aluminum alloy, a connection groove 22 is opened on a side surface of one end and has a trapezoidal groove shape, and a connection protrusion 23 is provided on a corresponding side surface of the other end and formed by a punching process, its shape is matched with the connection groove 22, so that it can be firmly inserted into an adjacent support plate 6. In this embodiment, when the support plates 6 are installed, the connection protrusion 23 of one support plate 6 is aligned and inserted into the connection groove 22 of the adjacent support plate 6 to achieve a quick and stable connection, realize convenient construction and removal of the support system, and improve construction efficiency; and the connection structure also ensures that a coordinated force is applied to the support plate 6 during use, improving the supporting effect.

[0029] The implementation principle of the above embodiment is as follows: When constructing a support system, the support plate 6 is joined to the connection groove 22 by the connecting protrusion 23, and the connecting protrusion 23 is laterally restrained by the connecting groove 22, so that adjacent support plates 6 are closely attached to each other to form a continuous and stable support surface. When removing the support system, the connecting protrusion 23 can be pulled out in the opposite direction. The operation is simple and easy to use.

[0030] The working principle of this device is as follows: Before the bridge casting construction, the device is fixed using the fixed base 1 and the wedge nails 3. During construction, according to the bridge design parameters, the lateral spacing of the support units 5 is first adjusted by the spacing adjustment mechanism 8, and then the height of the support units 5 is accurately adjusted using the lift adjustment mechanism 7, after which the support plate 6 is installed to form a complete support surface to support the bridge formwork. During casting, the stable support device bears the weight of the formwork and concrete and resists interference from external forces.

Claims

1. A reinforced bridge casting support device including a fixed base (1), a fixing hole (2) is drilled in the bottom of the fixed base (1), a wedge nail (3) is provided in the fixing hole (2), the fixed base (1) is provided with two movable tables (4) that can move facing each other or apart, the two movable tables (4) are located on both sides of the fixed base (1), and are distributed in pairs relative to the fixed base (1), each of the movable tables (4) is provided with a support unit (5) that can move up and down, a support plate (6) is removably connected between the two support units (5), the fixed base (1) is provided with a lift adjustment mechanism (7) that can adjust the height of the support unit (5), and the fixed base (1) is provided with a spacing adjustment mechanism (8) that can adjust the spacing between the two support units (5).

2. The reinforced bridge pouring support device according to claim 1, characterized in that the support unit (5) includes a slide rod (9), the slide rod (9) has a guide groove (10) formed therein, the guide groove (10) is formed in a dovetail shape, and the support plate (6) is capable of sliding within the guide groove (10).

3. The lifting adjustment mechanism (7) includes a worm (11), a rotatable worm (11) is provided on the top of the fixed base (1), a transmission rod (12) is provided on one side of the movable table (4), a transmission drum (13) is provided on the other side of the movable table (4), the transmission rod (12) is inserted into the transmission drum (13), the transmission drum (13) is provided with a worm gear (14), the worm (11) has a second rotating wheel at one end and is connected to the worm (11) at the other end in a drivable manner, the support unit (5) is provided with a rack (15), and the opposing sides of the transmission rod (12) and the transmission drum (13) are each provided with a gear (16) that can mesh with the rack (15).

4. The reinforced bridge pouring support device of claim 3, characterized in that the gap adjustment mechanism (8) includes a rotatable rotating screw (17), which is rotatably connected to the central part of the fixed base (1), and each side of the rotating screw (17) is provided with a screw having an opposite rotation direction, each side of the rotating screw (17) is screwed into the corresponding side of the movable table (4), and a first rotating wheel (18) is provided in the central part of the rotating screw (17).

5. The reinforced bridge pouring support device according to claim 4, characterized in that several slide rods (19) are provided between the two movable tables (4), a slide groove (20) is opened in each of the two movable tables (4), and a guide rod (21) capable of sliding within the slide groove (20) is provided on the fixed base (1).

6. The reinforced bridge casting support device according to claim 5, characterized in that a connecting groove (22) is opened at one end of the support plate (6), and a connecting protrusion (23) that can be inserted into the connecting groove (22) of an adjacent support plate (6) is provided at the other end of the support plate (6).

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