Movable supporting leg for segmented placement of bridge steel structure

Abstract

The utility model discloses a movable landing leg for placing a bridge steel structure in sections, which comprises a strut tube and a base tube which are vertically connected, a top plate is fixed at the top of the strut tube and used for supporting bridge sections, a bottom plate is arranged at the bottom of the base tube, stability is enhanced through a triangular reinforcing plate, and a compressible traveling mechanism is arranged below the base tube. The outer pipe and the inner pipe are nested, and the universal wheel has a locking function. When the bearing is not carried, the springs extend to enable the universal wheels to touch the ground, and the supporting legs can freely move; during bearing, the spring is compressed, and the bottom plate contacts with the ground to form fixed support; the triangular reinforcing plates are symmetrically distributed on the two sides of the base pipe, so that the bending strength is improved; the top plate is provided with a rubber cushion, the base pipe is filled with counterweight sand, and the stability is further guaranteed. The movable supporting leg has moving flexibility and bearing reliability, solves the problems that a traditional supporting leg depends on machinery to move and is low in construction efficiency, and is simple in structure, low in cost and suitable for bridge section shelving and transferring scenes.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge construction equipment technical field, concretely relates to a movable support leg for bridge steel structure section placement. BACKGROUND

[0002] In the construction process of bridge steel structure, the bridge structure is usually made in sections, and after completion, it needs to be transported to the outside field for storage. The traditional storage method usually uses a cylindrical jig frame or a gantry rack. However, these traditional methods have the following problems:

[0003] Inconvenient movement: the cylindrical jig frame needs to be moved using a forklift, and the gantry rack needs to be moved using a flatbed truck, which is complex to operate and low in efficiency.

[0004] Poor flexibility: the position adjustment of the traditional jig and rack needs to rely on mechanical equipment, and cannot quickly adapt to changes in the construction site.

[0005] Insufficient safety: the traditional support leg has a small contact area with the ground, which can cause a large pressure on the ground and pose a safety hazard.

[0006] High maintenance cost: the traditional support leg structure is complex, and the subsequent maintenance and maintenance cost is high. SUMMARY

[0007] The utility model aims at providing a movable support leg for bridge steel structure section placement to solve the problems raised in the background.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a movable support leg for bridge steel structure section placement, including support column pipe, base pipe, top plate, bottom plate, base plate top plate, triangular reinforcement plate and compressible walking mechanism, the support column pipe is perpendicular to the top of the base pipe, the top plate is welded and fixed on the top of the support column pipe, the bottom plate is located at the bottom of the base pipe, the base plate top plate is welded on the top of the base pipe, and is connected between the bottom plate through at least two groups of symmetrically distributed isosceles triangle triangular reinforcement plate, the compressible walking mechanism is welded and fixed with the side wall of the base pipe through the connecting side plate;

[0009] The compressible walking mechanism includes an outer tube, an inner tube, a spring, a universal wheel and a connecting side plate.

[0010] The inner tube is nested in the outer tube, and the spring is arranged between the top of the inner tube and the top of the outer tube.

[0011] The lower end of the inner tube is provided with the universal wheel, and the outer tube is fixedly connected with the base pipe through the connecting side plate.

[0012] The triangular reinforcement plate is an isosceles triangular structure, which is welded between the base pipe and the bottom plate.

[0013] The bottom plate is located at the bottom of the base pipe, and the top plate is fixed at the top of the support pipe for supporting the segmented bridge steel structure.

[0014] Preferably, the spring is a compression spring with an initial length greater than the nesting depth of the outer pipe and the inner pipe, and when the leg bears a load, the spring is compressed to make the bottom plate contact the ground.

[0015] Preferably, the universal wheel is a universal wheel with locking function, and the wheel diameter is not less than 100mm.

[0016] Preferably, the number of triangular reinforcing plates is at least two groups, symmetrically distributed on both sides of the base pipe, and the ratio of the bottom edge length to the diameter of the base pipe is 1:1.2-1.5.

[0017] Preferably, the bottom plate is a square steel plate with an area not less than 0.5m², and the bottom is provided with anti-skid lines.

[0018] Preferably, the surface of the top plate is provided with a rubber buffer pad with a thickness of 10-20mm and a Shore hardness of 60-70HA.

[0019] The technical effects and advantages of the utility model are as follows:

[0020] 1. The movable leg of the utility model is in an uncompressed state when not in use, and the bottom is provided with a universal wheel, which can be pushed to any desired position by the operator, facilitating the use of the leg.

[0021] 2. When in use, the segmented steel bridge is placed on the leg structure, the leg structure spring is compressed, and the bottom of the leg structure is in contact with the ground, forming a fixed leg structure, which can stably support the segmented bridge steel structure and ensure the construction quality.

[0022] 3. The lower part of the leg structure of the utility model is in contact with the ground, which can reduce the ground pressure and increase the safety of the device in use.

[0023] 4. The leg device of the utility model has a simple structure, is easy to manufacture, almost does not need maintenance and maintenance in the future, saves cost, is simple to use, and has high safety. DRAWINGS

[0024] Fig. 1 is a structural schematic view of the utility model;

[0025] Fig. 2 is a structural schematic view of the compressible walking mechanism.

[0026] In the figure: support pipe-1, base pipe-2, top plate-3, bottom plate-4, base plate top plate-5, triangular reinforcing plate-6, compressible walking mechanism-7, universal wheel-71, spring-72, outer pipe-73, inner pipe-74, connecting side plate-75. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] As Figs. 1-2 A specific embodiment of the movable support leg for sectional placement of bridge steel structure is shown:

[0029] A movable support leg for sectional placement of bridge steel structure, comprising a support pipe 1, a base pipe 2, a top plate 3, a bottom plate 4, a base plate top plate 5, a triangular reinforcing plate 6 and a compressible walking mechanism 7. The support pipe 1 is vertically arranged on the base pipe 2, and the top plate 3 is fixed on the top of the support pipe 1 and used for supporting the sectional bridge steel structure; the bottom plate 4 is arranged at the bottom of the base pipe 2 and contacts the ground. The base plate top plate 5 is connected with the bottom plate 4 through the triangular reinforcing plate 6, forming a stable triangular support structure and increasing the stability of the support leg structure;

[0030] The compressible walking mechanism 7 is arranged below the bottom plate 4 and comprises a universal wheel 71, a spring 72, an outer pipe 73, an inner pipe 74 and a connecting plate 75; the inner pipe 74 is nested in the outer pipe 73, and the spring 72 is arranged between the top of the inner pipe 74 and the top of the outer pipe 73 and used for providing the height of the walking mechanism when not in use. The universal wheel 71 with locking function is arranged at the lower end of the inner pipe 74, so as to push the support leg when the support leg structure needs to be moved and lock the support leg when it needs to be fixed; the telescopic walking mechanism 7 is connected with the base 2 through the connecting side plate 76, and the connecting side plate 76 is fixedly connected with the outer wall of the outer pipe 73.

[0031] In use, the sectional steel bridge is placed on the four support leg structures, the support leg structure spring 72 is compressed and in a compressed state, the bottom of the support leg structure contacts the ground, forming a fixed support leg structure and stably supporting the sectional bridge steel structure; after the sectional bridge is transported away, the support leg structure spring 72 returns to the original position, the walking mechanism 7 is again in an uncompressed state, and the support leg structure returns to a movable state.

[0032] The applicant further states that the implementation method and device structure of the utility model are illustrated by the above-mentioned embodiments, but the utility model is not limited to the above-mentioned embodiments, namely, it does not mean that the utility model must rely on the above-mentioned method and structure to be implemented. The skilled in the art should understand that any improvement of the utility model, equivalent replacement of the implementation method selected by the utility model, addition of steps, selection of specific modes and the like all fall within the protection scope and disclosed scope of the utility model.

[0033] The utility model is not limited to the above-mentioned embodiments, and all modes for realizing the purpose of the utility model by using similar structures and methods of the utility model fall within the protection scope of the utility model.

Claims

1. A movable leg for segmental placement of a bridge steel structure, characterized in that: The utility model relates to a bridge steel structure segment support device, including support pipe (1), base pipe (2), top plate (3), bottom plate (4), base plate top plate (5), triangle reinforcing plate (6) and compressible walking mechanism (7), support pipe (1) vertical welding is in base pipe (2) top, top plate (3) is welded and fixed in support pipe (1) top, bottom plate (4) is located in base pipe (2) bottom, base plate top plate (5) is welded in base pipe (2) top, is connected between bottom plate (4) through at least two groups of symmetric distribution's isosceles triangle triangle reinforcing plate (6), compressible walking mechanism (7) is welded and fixed with base pipe (2) lateral wall through connecting side plate (75); ‌The compressible walking mechanism (7) includes an outer tube (73), an inner tube (74), a spring (72), a universal wheel (71), and a connecting side plate (75); The inner tube (74) is nested in the outer tube (73), and the spring (72) is arranged between the top of the inner tube (74) and the top of the outer tube (73); The lower end of the inner tube (74) is provided with the universal wheel (71), and the outer tube (73) is fixedly connected with the base pipe (2) through the connecting side plate (75); ‌The triangle reinforcing plate (6) is an isosceles triangle structure and is welded between the base pipe (2) and the bottom plate (4); The bottom plate (4) is located at the bottom of the base pipe (2), and the top plate (3) is fixed at the top of the support pipe (1) and used for supporting the bridge steel structure segment.

2. A movable leg for segmental placement of a bridge steel structure according to claim 1, characterized in that: The spring (72) is a compression spring, and the initial length of the spring (72) is greater than the nesting depth of the outer tube (73) and the inner tube (74); when the support leg bears a load, the spring (72) is compressed to make the bottom plate (4) contact the ground.

3. A movable leg for segmental placement of a bridge steel structure according to claim 1, characterized in that: ‌The universal wheel (71) is a universal wheel with a locking function, and the wheel diameter of the universal wheel (71) is not less than 100 mm.

4. A movable leg for segmental placement of a bridge steel structure according to claim 1, characterized in that: The number of the triangle reinforcing plate (6) is at least two groups, which are symmetrically distributed on both sides of the base pipe (2), and the ratio of the bottom edge length of the triangle reinforcing plate (6) to the diameter of the base pipe (2) is 1:1.2-1.

5.

5. A movable leg for segmental placement of a bridge steel structure according to claim 1, characterized in that: The bottom plate (4) is a square steel plate, and the area of the bottom plate (4) is not less than 0.5 m², and the bottom of the bottom plate (4) is provided with anti-skid lines.

6. A movable leg for segmental placement of a bridge steel structure according to claim 1, characterized in that: The surface of the top plate (3) is provided with a rubber buffer pad (31), the thickness of the rubber buffer pad (31) is 10-20 mm, and the Shore hardness of the rubber buffer pad (31) is 60-70 HA.

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