Temporary support device for bridge construction

Abstract

The utility model relates to the technical field of bridge construction, in particular to a temporary support device for bridge construction, which comprises support legs, cross beams and cross beams. The supporting legs are of an L-shaped structure, the four supporting legs are arranged in a square structure, the inner corners of the supporting legs face the outer side, each supporting leg comprises an inner cylinder filled with upper-layer sand and an outer cylinder arranged on the upper-layer sand, the upper-layer sand is located on the upper middle portion of the inner cylinder, the lower middle portion of the outer cylinder is embedded in the inner cylinder in a sliding mode, and a sand discharging pipe is arranged on the side wall of the bottom of the outer cylinder. And a sand unloading valve is arranged on the sand unloading pipe. And the two cross beams are symmetrically erected at the upper ends of every two supporting legs. The cross beam comprises an upper cross beam and a lower cross beam which are vertically arranged and arranged in a cross mode, and the ends of the upper cross beam and the lower cross beam are erected at the upper ends of the supporting legs and located above the cross beam. During use, the outward parts of the supporting legs are located on the outer side below the bridge part, the space below the bridge part is not occupied, and a plurality of temporary support devices are not needed for supporting, so that the space below the bridge part is saved, and construction is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, and more specifically, particularly relates to a temporary support device used for bridge construction. Background Art

[0002] During the bridge construction process, temporary support is required for the bridge under construction to form an effective temporary support, so as to facilitate the progress of other construction work. In order to ensure the support strength, the prior art, such as the patents with announcement numbers CN206219986U and CN208685459U, discloses a sand-filled temporary support device for bridge construction, which includes a bottom iron ring, the bottom iron ring is filled with bottom sand, the height of the filled bottom sand is lower than the upper surface of the bottom iron ring, an outer cylinder with a bottom plate is provided on the sand surface of the bottom sand, the outer cylinder is filled with upper sand, the height of the filled upper sand is located in the middle and upper part of the outer cylinder, an inner cylinder with a bottom plate is provided on the sand surface of the upper sand, and a cover plate is provided on the top of the inner cylinder; a sand discharge valve is provided on the lower side wall of the outer cylinder, and a limited valve plate is hinged on the sand discharge valve. By filling the upper sand in the outer cylinder, the height of the inner cylinder is raised, so as to provide long-term stable support during bridge construction. However, its disadvantage is that the temporary support device is large in size and occupies a large area. It is not suitable for construction operations under the supported objects such as bridge box girders, and multiple devices are required to support objects with a large orthographic projection area. Summary of the invention

[0003] The utility model aims to overcome the above-mentioned shortcomings and provide a temporary support device for bridge construction that can solve the above-mentioned problems.

[0004] The utility model is implemented through the following technical scheme: a temporary support device for bridge construction, including legs, crossbeams and cross beams, the legs are L-shaped, four legs are arranged in a square structure and the inner corners are arranged outward, the legs include an outer cylinder filled with an upper layer of sand and an inner cylinder arranged on the upper layer of sand, the height of the upper layer of sand is located in the middle and upper part of the outer cylinder, the middle and lower part of the inner cylinder is slidably embedded in the outer cylinder, a sand discharge pipe is provided on the bottom side wall of the outer cylinder, and a sand discharge valve is provided on the sand discharge pipe. The two cross beams are symmetrically mounted on the upper ends of the legs in pairs. The cross beam includes an upper cross beam and a lower cross beam arranged up and down and cross-arranged, and the ends of the upper cross beam and the lower cross beam are mounted on the upper ends of the legs and located above the cross beam.

[0005] Furthermore, a protrusion is arranged on the inner side of the outer tube, the protrusion is in the shape of an elongated strip and arranged along the vertical direction, and a groove matching the protrusion is arranged on the outer side of the inner tube.

[0006] Furthermore, the plurality of protrusions are symmetrically arranged on two opposite sides of the inner wall of the outer tube.

[0007] Furthermore, a plurality of sand unloading pipes are arranged on the side wall of the bottom of the outer cylinder.

[0008] Furthermore, a mounting column is vertically arranged on the upper end surface of the inner tube, and the ends of the cross beam, upper cross beam and lower cross beam are all provided with mounting holes and are sleeved on the mounting column, and the upper end surface of the mounting column is lower than the upper end surface of the upper cross beam.

[0009] Furthermore, the lower cross beam includes a lower beam plate and reinforcing ribs arranged on the lower surface of the lower beam plate, and a plurality of the reinforcing ribs are parallel to the length direction of the lower beam plate and are arranged at equal intervals.

[0010] Furthermore, an outer hanging piece is arranged on the outer side wall of the outer tube, and an inner hanging piece is arranged on the outer side wall of the inner tube.

[0011] Furthermore, support blocks are fixed at both ends of the upper surface of the lower beam plate, the support blocks are provided with the mounting holes and are sleeved on the mounting columns, and the upper surface of the support blocks is flush with the upper surface of the upper cross beam.

[0012] The utility model has the following advantages:

[0013] The temporary support device for bridge construction in the utility model has four legs arranged in a square structure, and a cross beam and a cross beam are erected on the square structure with four legs arranged to form an overall structure. Since the legs are in an L-shaped structure and the inner corners are arranged outward, when in use, the temporary support device for bridge construction in the utility model is supported below the bridge part to be supported, and the upper surface of the upper cross beam is in contact with the bridge part. The outward parts of the legs will be outside and below the bridge part, and will not occupy the space below the bridge part. In addition, for a bridge part with a larger orthographic projection area, there is no need for multiple temporary support devices to support it, thereby saving space below the bridge part and facilitating construction.

[0014] The temporary support device for bridge construction in the utility model is provided with a protrusion on the inner side of the outer tube and a groove matched with the protrusion on the outer side of the inner tube, thereby effectively preventing the inner tube from being deflected during the lowering process. When the box beams are butt-jointed and the box beams to be installed need to be moved up and down for docking, the box beams to be butt-jointed can be supported, and sand can be unloaded through the sand unloading valve and the sand unloading pipe, so that the inner tube can be lowered without being deflected.

[0015] The temporary support device for bridge construction in the utility model is provided with a mounting column at the upper end of the inner tube, and mounting holes are opened at the ends of the cross beam, the upper cross beam and the lower cross beam. The ends of the cross beam, the upper cross beam and the lower cross beam are sleeved on the mounting column for installation, and installation and disassembly are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall structure of a temporary support device for bridge construction in an embodiment of the utility model.

[0017] Figure 2 It is a schematic diagram of the use status of a temporary support device for bridge construction in an embodiment of the utility model.

[0018] Figure 3 It is a schematic diagram of the overall structure of the supporting legs in the embodiment of the utility model.

[0019] Figure 4 It is a partial structural schematic diagram of the supporting legs in the embodiment of the utility model.

[0020] Figure 5 It is a cross-sectional view of the supporting legs in the embodiment of the utility model.

[0021] Figure 6 yes Figure 1 Enlarged view of point A in the middle.

[0022] In the figure: 1. support leg; 101. inner tube; 102. upper layer of sand; 103. outer tube; 104. sand discharge pipe; 105. sand discharge valve; 106. raised part; 107. groove; 108. mounting column; 109. outer hanging part; 110. inner hanging part; 2. cross beam; 3. upper cross beam; 4. lower cross beam; 401. lower beam plate; 402. reinforcing rib; 10. support block. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and beneficial effects of the patent of the utility model clearer, the preferred implementation of the utility model will be described in detail below in conjunction with the accompanying drawings to facilitate the understanding of technical personnel.

[0024] like Figure 1-6 As shown, the utility model is a temporary support device for bridge construction, comprising:

[0025] The leg 1 is an L-shaped structure, and the four legs 1 are arranged in a square structure with the inner corners facing outward. The leg 1 includes an outer cylinder 103 filled with an upper layer of sand 102 and an inner cylinder 101 arranged on the upper layer of sand 102. The height of the upper layer of sand 102 is located in the middle and upper part of the outer cylinder 103. The middle and lower part of the inner cylinder 101 is slidably embedded in the outer cylinder 103. A sand discharge pipe 104 is arranged on the side wall of the bottom of the outer cylinder 103, and a sand discharge valve 105 is arranged on the sand discharge pipe 104;

[0026] A crossbeam 2, wherein two crossbeams 2 are symmetrically mounted on the upper ends of the two legs 1;

[0027] The cross beam comprises an upper cross beam 3 and a lower cross beam 4 which are arranged vertically and crosswise, and ends of the upper cross beam 3 and the lower cross beam 4 are mounted on the upper end of the support leg 1 and are located above the cross beam 2 .

[0028] Furthermore, a protrusion 106 is disposed on the inner side of the outer tube 103 . The protrusion 106 is in a strip shape and is disposed along the vertical direction. A groove 107 matched with the protrusion 106 is disposed on the outer side of the inner tube 101 .

[0029] Furthermore, the plurality of protrusions 106 are symmetrically arranged on two opposite sides of the inner wall of the outer cylinder 103 .

[0030] Furthermore, a plurality of sand unloading pipes 104 are provided on the bottom side wall of the outer cylinder 103 .

[0031] Furthermore, a mounting column 108 is vertically provided on the upper end surface of the inner tube 101, and the ends of the cross beam 2, the upper cross beam 3 and the lower cross beam 4 are all provided with mounting holes and are mounted on the mounting column 108, and the upper end surface of the mounting column 108 is lower than the upper end surface of the upper cross beam 3.

[0032] Furthermore, the lower cross beam 4 includes a lower beam plate 401 and reinforcing ribs 402 arranged on the lower surface of the lower beam plate 401 , and a plurality of the reinforcing ribs 402 are parallel to the length direction of the lower beam plate 401 and are arranged at equal intervals.

[0033] Furthermore, an outer hanging piece 109 is provided on the outer side wall of the outer tube 103 , and an inner hanging piece 110 is provided on the outer side wall of the inner tube 101 .

[0034] Furthermore, support blocks 10 are fixed to both ends of the upper surface of the lower beam plate 401 , the support blocks 10 are provided with the mounting holes and are sleeved on the mounting columns 108 , and the upper surface of the support blocks 10 is flush with the upper surface of the upper cross beam 3 .

[0035] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A temporary support device for bridge construction, characterized in that: include: A leg (1), wherein the leg (1) is in an L-shaped structure, and the four legs (1) are arranged in a square structure with the inner corners facing outwards, the leg (1) comprises an outer cylinder (103) filled with an upper layer of sand (102) and an inner cylinder (101) arranged on the upper layer of sand (102), the height of the upper layer of sand (102) is located in the middle and upper part of the outer cylinder (103), the middle and lower part of the inner cylinder (101) is slidably embedded in the outer cylinder (103), a sand discharge pipe (104) is arranged on the side wall of the bottom of the outer cylinder (103), and a sand discharge valve (105) is arranged on the sand discharge pipe (104); A crossbeam (2), wherein two crossbeams (2) are symmetrically mounted on the upper ends of two of the supporting legs (1); A cross beam, the cross beam comprising an upper cross beam (3) and a lower cross beam (4) arranged vertically and crosswise, the ends of the upper cross beam (3) and the lower cross beam (4) being mounted on the upper ends of the supporting legs (1) and located above the cross beam (2).

2. The temporary support device for bridge construction according to claim 1, characterized in that: A protrusion (106) is arranged on the inner side of the outer cylinder (103), the protrusion (106) is in the shape of an elongated strip and is arranged in a vertical direction, and a groove (107) matching the protrusion (106) is arranged on the outer side of the inner cylinder (101).

3. The temporary support device for bridge construction according to claim 2, characterized in that: The plurality of protrusions (106) are symmetrically arranged on two opposite sides of the inner wall of the outer cylinder (103).

4. The temporary support device for bridge construction according to any one of claims 1 to 3, characterized in that: A plurality of sand unloading pipes (104) are arranged on the side wall of the bottom of the outer cylinder (103).

5. The temporary support device for bridge construction according to claim 4, characterized in that: A mounting column (108) is vertically arranged on the upper end surface of the inner tube (101); the ends of the cross beam (2), the upper cross beam (3) and the lower cross beam (4) are all provided with mounting holes and are sleeved on the mounting column (108); the upper end surface of the mounting column (108) is lower than the upper end surface of the upper cross beam (3).

6. The temporary support device for bridge construction according to claim 5, characterized in that: The lower cross beam (4) comprises a lower beam plate (401) and reinforcing ribs (402) arranged on the lower surface of the lower beam plate (401), wherein a plurality of the reinforcing ribs (402) are parallel to the length direction of the lower beam plate (401) and are arranged at equal intervals.

7. The temporary support device for bridge construction according to any one of claims 1 to 3, characterized in that: An outer hanging piece (109) is provided on the outer side wall of the outer cylinder (103), and an inner hanging piece (110) is provided on the outer side wall of the inner cylinder (101).

8. The temporary support device for bridge construction according to claim 6, characterized in that: Support blocks (10) are fixed at both ends of the upper surface of the lower beam plate (401), the support blocks (10) are provided with the mounting holes and are sleeved on the mounting columns (108), and the upper surface of the support blocks (10) is flush with the upper surface of the upper cross beam (3).

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