Temporary support for closure segment

Abstract

The utility model belongs to the technical field of temporary bearings for bridge closure, and specifically relates to a temporary bearing for a closure segment, which includes a sand barrel, a riser pipe that can be inserted into the sand barrel, and a sand hole bolt that can block the sand discharge hole at the bottom of the side of the sand barrel. The feature is that the inner end of the sand hole bolt is rotatably connected to a rectangular frame in the shape of a "mouth", the two open ends of the rectangular frame are distributed vertically up and down, and the rectangular frame can be pulled in and out of the sand discharge hole. The utility model has the advantages of high sand discharge efficiency and being more convenient for disassembly.

Description

Technical Field

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[0001] The utility model relates to the technical field of temporary bearings for bridge closure; specifically, the utility model relates to a temporary bearing for a closure segment. Background Art

[0002] The sand barrel bearing is a temporary support device that increases stability by filling sand, water or concrete. It is one of the most common temporary bearings in the temporary support of the bridge closure segment. During use, in order to improve the support stability and balance, generally, after filling the sand barrel with sand, a certain amount of water is added. When disassembling, after the permanent bearing is installed, first remove the bolt of the sand discharge hole at the bottom side of the sand barrel, and then, with the help of workers knocking on the sand barrel, the sand in the sand barrel is discharged. However, because the sand in the sand barrel is relatively wet, it is extremely easy to block the hole, which affects the sand discharge efficiency and makes the disassembly operation of the temporary bearing inconvenient. Summary of the Utility Model

[0003] In view of this, the utility model provides a temporary bearing for a closure segment, thereby solving or at least alleviating the above problems existing in the prior art.

[0004] To achieve the foregoing object, the utility model provides a temporary bearing for a closure segment, including a sand barrel, a riser pipe that can be inserted into the sand barrel, and a sand hole bolt that can block the sand discharge hole at the bottom side of the sand barrel. The inner end of the sand hole bolt is rotatably connected to a rectangular frame in the shape of a "mouth". The two open ends of the rectangular frame are distributed vertically. The rectangular frame can be pulled in and out of the sand discharge hole.

[0005] In a temporary bearing for a closure segment as described above, optionally, the bottom of the riser pipe is provided with an inclined surface.

[0006] In a temporary bearing for a closure segment as described above, optionally, there is a spaced distribution between the inner end of the rectangular frame and the inner wall of the sand barrel. When the bottom end of the riser pipe contacts the inner bottom wall of the sand barrel in a state facing the inner end of the rectangular frame, the bottom surface of the riser pipe will not hit the rectangular frame.

[0007] In a temporary bearing for a closure segment as described above, optionally, the top of the riser pipe is provided with a bolt hole, a regulating bolt is threadedly connected in the bolt hole, and the top of the regulating bolt is fixedly connected with a top plate, and the top plate is closely attached to the top end of the riser pipe.

[0008] In a temporary bearing for a closure segment as described above, optionally, the top plate has a rectangular structure, and one end of the inclined surface at the bottom of the riser pipe faces one end of the top plate.

[0009] The temporary support of the closure segment of the utility model can pull the sand in the sand cylinder out of the sand discharge hole more conveniently by arranging a rectangular frame to reciprocally pull in and out in the sand discharge hole and the inner cavity of the sand cylinder, improve the sand discharge efficiency, and thus improve the demolition efficiency of the temporary support. Brief Description of the Drawings

[0010] Referring to the accompanying drawings, the disclosure of the utility model will be more obvious. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the utility model. In the drawings:

[0011] Figure 1 is a schematic structural view of the utility model;

[0012] Figure 2 is the utility model Figure 1 sectional view. Detailed Embodiment

[0013] The technical solutions in the embodiments of the utility model will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts shall fall within the protection scope of the utility model.

[0014] As Figure 1 and Figure 2 shown, the utility model provides a temporary support for the closure segment, including a sand cylinder 1, a riser pipe 2 that can be inserted into the sand cylinder 1, and a sand hole bolt 3 that can block the sand discharge hole at the bottom of the side of the sand cylinder 1. The inner end of the sand hole bolt 3 is rotatably connected with a rectangular frame 4 in the shape of a "mouth". The two open ends of the rectangular frame 4 are distributed up and down, and the rectangular frame 4 can be pulled in and out in the sand discharge hole.

[0015] By arranging the rectangular frame 4, when demolishing the temporary support, after removing the sand hole bolt 3 from the sand discharge hole, by reciprocally pulling the sand hole bolt 3 back and forth, the sand hole bolt 3 is made to drive the rectangular frame 4 to reciprocally pull in and out. After the rectangular frame 4 is pulled outwards, its cavity will move outside the sand discharge hole. Then, the sand in the sand cylinder 1 can be discharged by using the rectangular frame 4, improving the sand discharge efficiency, and thus making the demolition operation of the temporary support more convenient and improving the operation efficiency.

[0016] The bottom of the riser pipe 2 is provided as an inclined surface. During the process of using the temporary support to support the bridge, the orientation of the inclined surface is opposite to that of the sand hole bolt 3. When demolishing the temporary support, when the riser pipe 2 descends slightly and can rotate at the bottom of the bridge, by rotating the riser pipe 2 by 180°, the inclined surface faces the side of the sand discharge hole, and the sand discharge efficiency is improved by using the inclined surface.

[0017] In addition, when the amount of sand discharged is small, the riser 2 can be rotated. The riser 2 uses its inclined surface to continuously stir the sand in the sand cylinder 1, making the sand looser and easier to discharge from the sand hole.

[0018] The inner ends of the rectangular frame 4 are spaced apart from the inner wall of the sand cylinder 1, and when the bottom end of the riser 2 contacts the bottom wall of the sand cylinder 1 with the inner end of the rectangular frame 4 facing it, the bottom surface of the riser 2 will not hit the rectangular frame 4. This prevents the riser 2 from interfering with the pulling and sand-discharging action of the rectangular frame 4 after it descends during the sand discharge process.

[0019] In a relatively specific embodiment, the rectangular frame 4 is located circumferentially within the range of the sand hole bolt 3, so that it can be directly pulled out from the sand head.

[0020] In another relatively specific embodiment, the rectangular frame 4 is located within the range of the sand hole bolt 3 in the circumferential direction, and its bottom inner end extends downward and contacts the bottom of the sand cylinder 1. This can prevent the rectangular frame 4 from being suspended and deformed under pressure, and can ensure that the opening of the rectangular frame 4 is always distributed vertically.

[0021] The top of the riser 2 is provided with bolt holes 5, and an adjusting bolt 6 is connected to the internal thread of the bolt holes 5. A top plate 7 is fixed to the top of the adjusting bolt 6, and the top plate 7 is in close contact with the top of the riser 2.

[0022] When the temporary support supports the bridge, the top plate 7 is in a state of close contact with the top of the riser 2, and with the cooperation of the adjusting bolt 6 and the bolt hole 5, the top plate 7 has sufficient stability at the top of the riser 2.

[0023] When dismantling the temporary support, after the riser 2 has slightly descended, first rotate the riser 2 180°, and then rotate the top plate 7 so that the top plate 7 moves upward with the cooperation of the bolt hole 5 and the adjusting bolt 6. The top plate 7 applies downward pressure to the riser 2 by squeezing the bottom of the bridge, and combined with the side of the inclined surface facing the sand discharge hole, it can better squeeze the sand in the sand cylinder 1 out of the sand discharge hole, thus improving the sand discharge effect.

[0024] The top plate 7 has a rectangular structure, and one end of the bottom slope of the riser 2 is directly opposite one end of the top plate 7. This arrangement allows the orientation of the slope to be determined based on the positions of the long and short sides of the top plate 7, making operation easier.

[0025] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A temporary support for a closure section, comprising a sand cylinder (1), a riser (2) capable of being inserted into the sand cylinder (1), and a sand-hole bolt (3) capable of sealing the sand discharge hole at the bottom of the side of the sand cylinder (1), characterized in that, The inner end of the sand hole bolt (3) is rotatably connected to a rectangular frame (4) in the shape of a "mouth", and both sides of the rectangular frame (4) are open and distributed vertically, and the rectangular frame (4) can be pulled in and out of the sand discharge hole.

2. A temporary support for a closure segment according to claim 1, characterised in that The bottom of the riser pipe (2) is provided as an inclined surface.

3. A temporary support for a closure segment according to claim 2, characterised in that There is a spaced distribution between the inner end of the rectangular frame (4) and the inner wall of the sand cylinder (1), and when the bottom end of the riser pipe (2) contacts the inner bottom wall of the sand cylinder (1) in a state facing the inner end of the rectangular frame (4), the bottom surface of the riser pipe (2) will not impact the rectangular frame (4).

4. A temporary support for a closure segment according to claim 2, wherein, The top of the riser pipe (2) is provided with a bolt hole (5), a regulating bolt (6) is threadedly connected in the bolt hole (5), and the top of the regulating bolt (6) is fixedly connected with a top plate (7), and the top plate (7) is closely attached to the top end of the riser pipe (2).

5. A temporary support for a closure segment according to claim 4, wherein, The top plate (7) has a rectangular structure, and one end of the inclined surface at the bottom of the riser pipe (2) faces one end of the top plate (7).

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