Concrete filled steel tube jacking device

Abstract

The utility model relates to the technical field of building construction, in particular to a steel pipe concrete jacking device which comprises a steel pipe column, a feeding pipe is arranged on the outer wall of the bottom end of the steel pipe column and comprises an outer pipe and an inner pipe which are integrally formed, the outer pipe is welded and fixed to the outer wall of the steel pipe column, and the inner pipe is a 90-degree bent pipe. The end, away from the outer pipe, of the inner pipe is bent upwards, the top end of the steel pipe column is fixedly connected with a connecting pipe, a top plate is fixed to the top end of the connecting pipe, exhaust holes are formed in the top plate, and a plurality of grout outlet pipes are installed on the circumferential wall of the connecting pipe. The concrete jacking device has the technical effect of reducing the displacement of the steel pipe column when the concrete is jacked.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a steel tube concrete jacking device. Background Art

[0002] The jacking and pouring construction of steel tube concrete makes the concrete have higher compressive bearing capacity, and the steel column has good ductility and seismic resistance. It has been well promoted and used in multi-story buildings, industrial buildings, bridge projects, etc.

[0003] A Chinese utility model patent with publication number CN206016274U discloses a steel pipe column core concrete lifting connection device, including a steel pipe column, a feed port of the steel pipe column is connected to a feed pipe, an outer pipe port of the feed pipe is connected to a pumping pipe, an automatic non-return device is installed on the pumping pipe, and the pumping pipe delivers concrete from the feed pipe into the steel pipe column through the automatic non-return device. When the delivery of concrete stops, the concrete automatically pushes back the sealing plate through the backflow, so that the sealing plate blocks the pipeline, thereby automatically preventing the concrete from flowing back.

[0004] In the above utility model, the feed pipe is arranged horizontally, and the pumping pipe delivers concrete to the steel column through the feed pipe. After the concrete is discharged from the feed pipe, the steel column is easily displaced under the impact force of the concrete when the concrete is jacked. Utility Model Content

[0005] The embodiment of the utility model provides a steel tube concrete jacking device, which has the technical effect of reducing the displacement of the steel tube column when the concrete is jacked.

[0006] A steel tube concrete jacking device adopts the following technical solutions:

[0007] A steel tube concrete jacking device comprises a steel tube column. A feed pipe is arranged on the outer wall of the bottom end of the steel tube column. The feed pipe comprises an outer tube and an inner tube which are integrally formed. The outer tube is welded and fixed to the outer wall of the steel tube column. The inner tube is a 90-degree bend tube. The end of the inner tube away from the outer tube is bent upward. A connecting pipe is fixedly connected to the top of the steel tube column. A top plate is fixedly arranged on the top of the connecting pipe. Exhaust holes are opened on the top plate. A plurality of slurry outlet pipes are installed on the circumferential wall of the connecting pipe.

[0008] Furthermore, reinforcing ribs are fixed between the outer circumferential wall of the external tube and the outer wall of the steel pipe column, and one end of the external tube away from the steel pipe column is detachably connected to a pumping pipe, on which a check assembly is installed.

[0009] Furthermore, the check assembly includes a fixed seat, through which the pumping pipe passes, and the fixed seat is provided with a mounting groove from top to bottom, in which a valve plate is provided, and the valve plate is provided with a through hole for concrete to pass through. The bottom of the fixed seat is rotatably connected to a support block for supporting the bottom of the valve plate, and after the valve plate moves downward, the valve plate can close the pumping pipe.

[0010] Furthermore, a reinforcing plate is fixed on the outer wall of the connecting pipe, the reinforcing plate is located below the top plate, and a connecting plate is fixed between the reinforcing plate and the top plate.

[0011] Compared with the prior art, the utility model has the following technical effects:

[0012] The internal pipe is a 90-degree bend to ensure that the steel pipe column only bears the vertical concrete impact force, and is not easy to block the pump pipe or cause the steel pipe column to shift. The top of the steel pipe column is equipped with an exhaust hole and a slurry outlet pipe to ensure that the concrete is filled in the steel pipe and the steel pipe is not easy to shift vertically. The feed pipe is connected to the pumping pipe flange, which has high construction efficiency and can be used in a turnover manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present invention, and do not constitute a limitation of the present invention. In the drawings:

[0014] Figure 1 To embody the overall structural schematic diagram of the utility model;

[0015] Figure 2 A schematic diagram showing the feed pipe in the utility model;

[0016] Figure 3 A schematic diagram showing the external tube and reinforcing ribs in the present invention;

[0017] Figure 4 A schematic diagram of a non-return assembly for embodying the present invention;

[0018] Figure 5 It is a schematic diagram of a non-return assembly embodying the present invention.

[0019] Explanation of the reference numerals: 1. Steel pipe column; 2. Feed pipe; 21. External pipe; 211. First flange; 212. Reinforcement rib; 22. Internal pipe; 3. Connecting pipe; 31. Top plate; 32. Reinforcement plate; 33. Connecting plate; 34. Slurry outlet pipe; 35. Exhaust hole; 4. Pumping pipe; 41. Second flange; 5. Check assembly; 51. Fixed seat; 511. Mounting groove; 52. Valve plate; 521. Through hole; 53. Support block. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with the implementation mode and the accompanying drawings. Here, the schematic implementation mode of the utility model and its description are used to explain the utility model, but are not used as a limitation of the utility model.

[0021] Reference Figure 1 , Figure 2 and Figure 3 A steel tube concrete lifting device includes a steel tube column 1, a feed pipe 2 is welded and fixed on the side wall of the bottom end of the steel tube column 1, and the feed pipe 2 includes an integrally formed outer tube 21 and an inner tube 22. The outer tube 21 is horizontally arranged, and the inner tube 22 is a 90-degree bend tube. The end of the inner tube 22 away from the outer tube 21 is arranged upward. A plurality of reinforcing ribs 212 are welded and fixed between the circumferential wall of the outer tube 21 and the side wall of the steel tube column 1, which increases the stability of the connection between the outer tube 21 and the steel tube column 1.

[0022] The inner pipe 22 is configured as a 90-degree bend to ensure that when the concrete is lifted by a pump truck, the steel pipe column 1 only bears the vertical concrete impact force and is not likely to block the pumping pipe 4 or cause the steel pipe column 1 to shift.

[0023] A connecting pipe 3 is fixed to the top of the steel pipe column 1, a top plate 31 is fixed to the top of the connecting pipe 3, a reinforcing plate 32 is fixed to the outer wall of the connecting pipe 3, and the reinforcing plate 32 is located below the top plate 31. Four connecting plates 33 are fixed between the reinforcing plate 32 and the top plate 31, and the four connecting plates 33 are evenly arranged along the axial direction of the connecting pipe 3, thereby increasing the strength and stability of the connecting pipe 3.

[0024] Four slurry outlet pipes 34 are welded and fixed on the top side wall of the connecting pipe 3. The four slurry outlet pipes 34 are evenly arranged along the circumferential direction of the connecting pipe 3, and the slurry outlet pipes 34 are connected to the inside of the connecting pipe 3. The slurry outlet pipes 34 are 90-degree bend pipes. Four exhaust holes 35 are opened on the top plate 31 to ensure that concrete can fill the top of the steel pipe column 1 and the steel pipe column 1 does not undergo vertical displacement.

[0025] Reference Figure 3 , Figure 4 and Figure 5 The end of the external tube 21 away from the steel pipe column 1 is detachably connected to the pumping pipe 4, a first flange 211 is fixed on the external tube 21, a second flange 41 is fixed on the pumping pipe 4, the first flange 211 and the second flange 41 are fixed by bolts and nuts, and a check assembly 5 is installed on the pumping pipe 4.

[0026] The check assembly 5 includes a fixing seat 51, a mounting groove 511 is provided on the fixing seat 51, the mounting groove 511 penetrates the fixing seat 51 from bottom to bottom, the mounting groove 511 is communicated with the inside of the pumping pipe 4, a valve plate 52 is provided in the mounting groove 511, and the valve plate 52 is inserted into the mounting groove 511 from the top of the mounting groove 511. A through hole 521 is provided on the valve plate 52, a support block 53 is provided at the bottom of the fixing seat 51, one end of the support block 53 is rotatably connected to the fixing seat 51, and the support block 53 supports the valve plate 52. When the concrete is transported, the support block 53 supports the valve plate 52, the through hole 521 is aligned with the pumping pipe 4, and the concrete passes through the through hole 521.

[0027] When the concrete in the steel pipe column 1 is full, the support block 53 is rotated to disengage the support block 53 from the bottom of the mounting groove 511, and the valve plate 52 moves downward, so that the through hole on the valve plate 52 moves downward, and the valve plate 52 blocks the pumping pipe 4, thereby preventing the concrete in the steel pipe column 1 from flowing back.

[0028] The implementation principle of the steel tube concrete lifting device of the utility model is as follows: when the concrete is lifted into the steel tube column 1 by a pump truck, the concrete enters the steel tube column 1 through the internal pipe 22. The internal pipe 22 is a 90-degree bend pipe to ensure that the steel tube column 1 only bears the vertical concrete impact force, and is not easy to block the pump pipe or shift the steel tube column 1. The top of the steel tube column 1 is provided with an exhaust hole 35 and a slurry outlet pipe 34 to ensure that the concrete is filled in the steel tube and the steel tube is not easy to be vertically displaced. The feed pipe 1 is flange-connected with the pumping pipe 4, with high construction efficiency and can be used in a turnover manner.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A steel tube concrete lifting device, comprising a steel tube column (1), a feed pipe (2) being arranged on the outer wall of the bottom end of the steel tube column (1), characterized in that: The feed pipe (2) comprises an outer pipe (21) and an inner pipe (22) which are integrally formed. The outer pipe (21) is welded and fixed to the outer wall of the steel pipe column (1). The inner pipe (22) is a 90-degree bend pipe. One end of the inner pipe (22) away from the outer pipe (21) is bent upward. The top end of the steel pipe column (1) is fixedly connected to a connecting pipe (3). The top end of the connecting pipe (3) is fixedly connected to a top plate (31). An exhaust hole (35) is provided on the top plate (31). A plurality of slurry outlet pipes (34) are installed on the circumferential wall of the connecting pipe (3).

2. The steel tube concrete jacking device according to claim 1, characterized in that: A reinforcing rib (212) is fixed between the outer circumferential wall of the external tube (21) and the outer wall of the steel tube column (1); an end of the external tube (21) away from the steel tube column (1) is detachably connected to a pumping tube (4); and a check assembly (5) is installed on the pumping tube (4).

3. The steel tube concrete jacking device according to claim 2 is characterized in that: The check assembly (5) comprises a fixing seat (51), the pumping pipe (4) passes through the fixing seat (51), the fixing seat (51) is provided with a mounting groove (511) from top to bottom, a valve plate (52) is arranged in the mounting groove (511), the valve plate (52) is provided with a through hole (521) for concrete to pass through, the bottom of the fixing seat (51) is rotatably connected to a support block (53) for supporting the bottom of the valve plate (52), and after the valve plate (52) moves downward, the valve plate (52) can close the pumping pipe (4).

4. The steel tube concrete jacking device according to claim 1, characterized in that: A reinforcing plate (32) is fixed on the outer wall of the connecting pipe (3), the reinforcing plate (32) is located below the top plate (31), and a connecting plate (33) is fixed between the reinforcing plate (32) and the top plate (31).

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