A support device for bridge construction

Abstract

This invention discloses a support device for bridge construction, including a clamp and two crossbeams. The two crossbeams are fixedly connected in parallel to the upper side of the clamp. Multiple parallel longitudinal beams are provided on the upper side of the two crossbeams, and a folding rod assembly is provided between adjacent longitudinal beams. One of the outermost longitudinal beams has a lug. A sliding block is symmetrically slidably connected to the bottom of each longitudinal beam. A retaining plate is fixedly connected to the side of each crossbeam, and the retaining plate has a retaining groove. A limiting step column is fixedly connected to the bottom of the sliding block, and the step column is correspondingly positioned to the retaining groove. This invention uses a large number of longitudinal beams suspended by a crane. After one longitudinal beam is first placed on top of the crossbeam, the crane moves the entire longitudinal beam towards the pier. The step column at the bottom of this longitudinal beam slides from the side into the retaining groove. The guide slope guides and compresses the supporting spring. When it reaches the arc-shaped groove, the step column slides along the outer end of the longitudinal beam, and the step columns on both sides slide towards the ends of the longitudinal beam for support, preventing the longitudinal beam from easily detaching.

Description

Technical Field

[0001] This invention relates to the field of bridge construction support structure technology, and in particular to a support device for bridge construction. Background Technology

[0002] Bridge construction support brackets are a type of support bracket used for the construction and subsequent maintenance of bridges. They allow workers to carry out normal construction work and place related construction tools and materials. With the development of science and technology, there are more and more types of bridge construction support brackets, and the demand for bridge construction support brackets is getting higher and higher.

[0003] The existing support device includes clamps, on which horizontal and vertical beams are installed and fixed by welding or bolts. The dense distribution of the vertical beams makes individual installation inefficient and does not facilitate improving construction efficiency. Furthermore, the horizontal and vertical beams are set in both longitudinal and transverse directions, which can easily create large gaps with the cylindrical piers, making it easy to step into gaps or insufficient support for subsequent installation and pouring of formwork. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a support device for bridge construction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A bridge construction support device includes a clamp and two crossbeams. The two crossbeams are fixedly connected in parallel to the upper side of the clamp. Multiple parallel longitudinal beams are provided on the upper side of the two crossbeams. A folding rod group is provided between two adjacent longitudinal beams. A lug is provided on the outermost longitudinal beam. A sliding block is symmetrically slidably connected to the bottom of the longitudinal beam. A clamping plate is fixedly connected to the side of the crossbeam. The clamping plate has a groove. A limiting step column is fixedly connected to the bottom of the sliding block. The step column is correspondingly set with the groove.

[0007] Preferably, one end of the slot is open, and a guide slope is provided on the open side of the slot, with an arc-shaped groove connected to the inner end of the guide slope;

[0008] The longitudinal beam is an H-beam. A baffle is fixedly connected to the side groove of the longitudinal beam. A guide rod is fixedly connected to the side of the baffle. A support plate is fixedly connected to the end of the guide rod. The support plate is fixedly connected to the side groove of the longitudinal beam. A slide is slidably connected to the guide rod. A support spring is fixedly connected between the baffle and the slide.

[0009] Preferably, the folding rod assembly includes fixed-length rods and telescopic rods, wherein telescopic rods are hinged between two longitudinal beams, and fixed-length rods are hinged between the remaining longitudinal beams. The fixed-length rods are hinged in pairs on one side of the longitudinal beams, and the fixed-length rods between two adjacent longitudinal beams are hinged in a one-to-one correspondence.

[0010] The telescopic rod includes a reference rod, a support plate is hinged to the side groove of the longitudinal beam and the hinge axis is set horizontally, the reference rod is hinged to the support plate and the hinge axis is set vertically when the support plate is horizontal;

[0011] The reference rod has a square sliding cavity inside, and multiple rod segments are slidably connected inside the square sliding cavity. Tension springs are fixedly connected between the inner ends of the multiple rod segments and the ends of the square sliding cavity. The multiple rod segments include multiple tie rods that are hinged in sequence, and the outer ends of the multiple rod segments between two adjacent longitudinal beams are hinged to each other.

[0012] Preferably, inclined plates are fixedly connected to both sides of the end of the reference rod away from the longitudinal beam.

[0013] Preferably, the outer ends of the multi-section rods that are hinged to each other are rotatably connected to the traction seat.

[0014] Preferably, a circular ring is fixedly connected to one side of the traction seat.

[0015] The advantages of this invention are as follows: After the bridge construction support device provided by this invention is installed with clamps and crossbeams, a large number of longitudinal beams are formed as a whole and suspended by a crane. After one side of the longitudinal beam is first placed on the upper side of the crossbeam, the crane moves the entire longitudinal beam towards the pier. The stepped column at the bottom of the longitudinal beam slides into the slot from the side. The guide slope plays the role of guiding and compressing the support spring. When it reaches the arc groove, the stepped column slides along the outer end of the longitudinal beam. The stepped columns on both sides slide towards the two ends of the longitudinal beam to provide corresponding support, so that the longitudinal beam will not easily fall off.

[0016] This invention involves using a longitudinal beam that spans over a bridge pier, where four parallelogram-shaped telescopic rods are fitted onto the pier. After the crane moves away, the tension springs retract the multi-segment rods into a square sliding cavity. This avoids sharp corners and potential safety hazards. Furthermore, as shown in the diagram, the multi-segment rods partially retract into the square sliding cavity, while the outer segments fold, bringing them closer to the pier. This provides additional support in areas previously missed between the pier and the longitudinal beam (as shown in the diagram, a triangular gap forms between the crossbeam, longitudinal beam, and the circular pier, which is too large and difficult to support), increasing the support force and facilitating the subsequent installation of the pouring formwork. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the basic structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the connection structure of a fixed-length rod between two longitudinal beams;

[0019] Figure 3 yes Figure 1 Enlarged view of section E in the image;

[0020] Figure 4 This is a schematic diagram showing the state of the telescopic pole losing traction and being limited by the bridge pier.

[0021] Figure 5 This is a schematic diagram of the state of the present invention used for bridge pier support.

[0022] Figure 6 yes Figure 5 Enlarged view of section F in the image;

[0023] Figure 7 This is a schematic diagram showing the installation direction of the clamps located at the outermost ends on both sides of a single bridge pier. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 illustrative and not intended to limit the invention.

[0025] Example 1

[0026] like Figure 1-7 As shown, the present invention provides a bridge construction support device, including a clamp 1 and two crossbeams 2. The two crossbeams 2 are fixedly connected to the upper side of the clamp 1 by bolts. The clamp 1 consists of two semi-circular rings that are fixed to the outside of the bridge pier by bolts. Multiple parallel longitudinal beams 3 are provided on the upper side of the two crossbeams 2. A folding rod group is provided between two adjacent longitudinal beams 3. The outermost longitudinal beam 3 is provided with a lug for easy lifting. The bottom of the longitudinal beams 3 is symmetrically slidably connected to a sliding seat 4. The side of the crossbeams 2 is fixedly connected to a clamping plate 5. The clamping plate 5 is provided with a slot 51. The bottom of the sliding seat 4 is fixedly connected to a limiting step column 6. The step column 6 is correspondingly arranged with the slot 51. The larger end of the bottom of the step column 6 is larger than the width of the slot 51, so that the step column 6 is inserted into the slot 51 from the side.

[0027] One end of the slot 51 is open, and a guide slope 52 is provided on the open side of the slot 51. The inner end of the guide slope 52 is connected to an arc groove 53.

[0028] The longitudinal beam 3 is an H-beam. A baffle 54 is fixedly connected in the side groove of the longitudinal beam 3. A guide rod 55 is fixedly connected to the side of the baffle 54. A support plate 56 is fixedly connected to the end of the guide rod 55. The support plate 56 is fixedly connected in the side groove of the longitudinal beam 3. The slide 4 is slidably connected to the guide rod 55. A support spring 57 is fixedly connected between the baffle 54 and the slide 4.

[0029] After the clamp 1 and the crossbeam 2 are installed in place, a large number of longitudinal beams 3 are suspended by a crane. One side of the longitudinal beam 3 is first placed on the upper side of the crossbeam 2, and then the crane moves the entire longitudinal beam 3 toward the pier. The stepped column 6 at the bottom of the longitudinal beam 3 slides from the side into the slot 51. The guide slope 52 plays a guiding role and compresses the support spring 57. When it reaches the arc groove 53, the stepped column 6 slides along the outer end of the longitudinal beam 3. The stepped columns 6 on both sides slide to the two ends of the longitudinal beam 3 for corresponding support, so that the longitudinal beam 3 will not easily fall off.

[0030] like Figures 5 to 7 As shown, the clamping plates 5 on both sides of the pier are symmetrical, that is, the clamping slot 51 of the clamping plate 5 on the left side of the left pier faces to the left, and the clamping slot 51 of the clamping plate 5 on the right side of the left pier faces to the right. During hoisting, the longitudinal beams 3 at both ends are clamped on the clamping plates 5 in the opposite direction of the clamping slots 51 by the step columns 6. A folding spring is set in the folding rod group, so when the crane is removed, the tension of the folding spring hangs between the two clamping slots 51 back to back, thus making installation and disassembly quick and convenient.

[0031] Example 2

[0032] like Figure 1-7 As shown, the folding rod group includes a fixed-length rod 7 and a telescopic rod 8. The telescopic rod 8 is hinged between two longitudinal beams 3, and the fixed-length rod 7 is hinged between the remaining longitudinal beams 3. Folding springs are provided on the hinge shafts. The folding springs are torsion springs. The fixed-length rods 7 are hinged in pairs on one side of the longitudinal beam 3. The fixed-length rods 7 between two adjacent longitudinal beams 3 are hinged one-to-one.

[0033] The telescopic rod 8 includes a reference rod 81. The support plate 82 is hinged in the side groove of the longitudinal beam 3 and the hinge axis is set horizontally, so that the two longitudinal beams 3 can approach each other. The reference rod 81 is hinged to the support plate 82, and the hinge axis is set vertically when the support plate 82 is horizontal, so that the support plate 82 can rotate as the telescopic reference of the telescopic rod 8.

[0034] The reference rod 81 has a square sliding cavity 83 inside, and a multi-segment rod 84 is slidably connected inside the square sliding cavity 83. A tension spring 85 is fixedly connected between the inner end of the multi-segment rod 84 and the end of the square sliding cavity 83. The multi-segment rod 84 includes a plurality of tie rods 86 that are hinged in sequence. The outer ends of the multi-segment rod 84 between two adjacent longitudinal beams 3 are hinged to each other.

[0035] The outer ends of the multi-segment rods 84, which are hinged to each other, are rotatably connected to the traction seat 9, and a ring 91 is fixedly connected to one side of the traction seat 9.

[0036] In this invention, traction seats 9 are provided at the hinged positions of the four telescopic rods 8 in pairs. Two additional cranes are used to pull the corresponding traction seats 9 to both sides, so that the four telescopic rods 8 form a... Figure 1The parallelogram structure facilitates passage through the piers, allowing it to wrap around their perimeter and preventing the longitudinal beam 3 from detaching. During disassembly, the clamp 1 is separated, and the clamp 1, crossbeam 2, and longitudinal beam 3 are lowered to the ground as a whole. The hinge shaft of one of the telescopic rods 8 is removed for quick disassembly. After disassembly, the telescopic rod 8 is reinstalled. Through the action of the torsion spring, adjacent longitudinal beams 3 are brought together for easy placement.

[0037] After the longitudinal beam 3 crosses the pier, that is, after the four parallelogram-shaped telescopic rods 8 are fitted onto the pier, the crane moves away, and the tension spring 85 retracts the multi-section rod 84 into the square sliding cavity 83. This avoids the formation of sharp corners and potential safety hazards. On the other hand, as... Figure 4 As shown, the multi-segment rod 84 is partially recessed into the square sliding cavity 83, and the outer multi-segment rod 84 forms a fold, moving closer to the pier, at the missing position 10 between the pier and the longitudinal beam (as shown). Figure 5 The triangular gaps between the crossbeam 2, longitudinal beam 3 and the circular pier (if the gaps are too large, it will be difficult to provide support) will form additional support to increase the support force and facilitate the installation of the subsequent pouring formwork.

[0038] Furthermore, inclined plates 811 are fixedly connected to both sides of the end of the reference rod 81 away from the longitudinal beam 3, so that the multi-segment rod 84 can be retracted into the square sliding cavity 83.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A support device for bridge construction, comprising a clamp (1) and two crossbeams (2), the two crossbeams (2) being fixedly connected in parallel to the upper side of the clamp (1), and a plurality of parallel longitudinal beams (3) being provided on the upper side of the two crossbeams (2), characterized in that: A folding rod group is provided between two adjacent longitudinal beams (3), and a lug is provided on the outermost longitudinal beam (3). The bottom of the longitudinal beam (3) is symmetrically connected to a slide block (4). The side of the crossbeam (2) is fixedly connected to a card plate (5). The card plate (5) is provided with a card groove (51). The bottom of the slide block (4) is fixedly connected to a limiting step column (6). The step column (6) is correspondingly set with the card groove (51). The folding rod group includes a fixed-length rod (7) and a telescopic rod (8), wherein the telescopic rod (8) is hinged between two longitudinal beams (3), and the fixed-length rod (7) is hinged between the remaining longitudinal beams (3). The fixed-length rods (7) are hinged in pairs on one side of the longitudinal beams (3), and the fixed-length rods (7) between two adjacent longitudinal beams (3) are hinged in a one-to-one correspondence. The telescopic rod (8) includes a reference rod (81), a support plate (82) is hinged in the side groove of the longitudinal beam (3) and the hinge axis is set horizontally. The reference rod (81) is hinged to the support plate (82) and the hinge axis is set vertically when the support plate (82) is horizontal. The reference rod (81) has a square sliding cavity (83) inside, and a multi-segment rod (84) is slidably connected inside the square sliding cavity (83). A tension spring (85) is fixedly connected between the inner end of the multi-segment rod (84) and the end of the square sliding cavity (83). The multi-segment rod (84) includes multiple tie rods (86) that are hinged in sequence. The outer ends of the multi-segment rod (84) between two adjacent longitudinal beams (3) are hinged to each other.

2. The bridge construction support device according to claim 1, characterized in that: The slot (51) is open at one end, and a guide slope (52) is provided on the open side of the slot (51). The inner end of the guide slope (52) is connected to an arc groove (53). The longitudinal beam (3) is an H-beam. A baffle (54) is fixedly connected in the side groove of the longitudinal beam (3). A guide rod (55) is fixedly connected to the side of the baffle (54). A support plate (56) is fixedly connected to the end of the guide rod (55). The support plate (56) is fixedly connected in the side groove of the longitudinal beam (3). The slide (4) is slidably connected to the guide rod (55). A support spring (57) is fixedly connected between the baffle (54) and the slide (4).

3. The bridge construction support device according to claim 1, characterized in that: The reference rod (81) is fixedly connected to inclined plates (811) on both sides of the end away from the longitudinal beam (3).

4. A bridge construction support device according to claim 3, characterized in that: The outer ends of the multi-segment rods (84) that are hinged to each other are rotatably connected to the traction seat (9).

5. A bridge construction support device according to claim 4, characterized in that: A ring (91) is fixedly connected to one side of the traction seat (9).

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