Steel pipe recycled concrete column butt joint device
By combining the design of steel pipe structure and precision observation line, the problems of joint accuracy and disassembly difficulty of steel pipe recycled concrete columns were solved, realizing efficient and precise jointing and expansion connection, and improving the stability and efficiency of building construction.
Patent Information
- Application Number
- CN202520205079.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-10
AI Technical Summary
The existing method of connecting steel pipe recycled concrete columns relies on manual operation, which makes it difficult to guarantee accuracy, resulting in large connection errors, affecting the stability of the building structure, and is also inefficient. Furthermore, it is difficult to disassemble the steel pipes after connection.
The structure adopts a combination of a first main steel pipe, a second main steel pipe, an upper extension steel pipe, and a lower extension steel pipe. Precise docking is achieved through the cooperation of pre-embedded screws, fixing nuts, and rubber pads. The docking accuracy observation line is used to improve the docking precision. After the concrete is poured, it solidifies to form a concrete column.
It achieves high-precision docking of steel pipe recycled concrete columns, improves construction efficiency, reduces labor costs, and facilitates subsequent disassembly and extension connections when the columns are extended.
Smart Images

Figure CN223780963U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building construction equipment technical field, concretely relates to a steel pipe recycled concrete column docking device. BACKGROUND
[0002] In construction engineering, especially in some large construction projects or reconstruction projects, it is often necessary to perform docking operation on steel pipe recycled concrete columns. Steel pipe recycled concrete columns combine the advantages of steel pipes and recycled concrete, and have high bearing capacity and good seismic performance. However, the existing docking methods and devices have many problems. Traditional docking methods often rely on manual operation by on-site workers, and the precision is difficult to guarantee, and the docking error is large, which may cause uneven stress on the columns and affect the stability of the entire building structure. Moreover, manual docking is low in efficiency and consumes a lot of manpower and time cost.
[0003] Patent publication number CN206681166U discloses a steel pipe recycled concrete column docking device, which comprises a left connecting piece, a right connecting piece and a straightness pre-buried rod. The left connecting piece is provided with a through hole at the transverse center position, and the through hole is provided with a rotating bearing inside. A plurality of connecting plugs are arranged on one side surface of the left connecting piece, and three threaded weld studs are arranged on the other side surface of the left connecting piece. The three threaded weld studs are distributed in a regular triangle shape around the through hole.
[0004] In order to solve the problem of difficulty in steel pipe docking in the prior art, the prior art uses threaded weld studs distributed in a regular triangle shape to connect the steel pipe recycled concrete columns, and the middle part is treated by pouring concrete. However, the problem of difficulty in disassembling the steel pipe after connecting the concrete columns still exists, which further leads to the problem of affecting subsequent construction. UTILITY MODEL CONTENTS
[0005] The utility model aims to provide a steel pipe recycled concrete column docking device to solve the problems raised in the background art.
[0006] To solve the above technical problems, the utility model adopts the technical scheme of:
[0007] A steel pipe recycled concrete column docking device, comprising a first main steel pipe, a second main steel pipe arranged at the bottom end of the first main steel pipe, an upper extension steel pipe arranged at one end of the first main steel pipe, and a lower extension steel pipe arranged at the bottom end of the upper extension steel pipe.
[0008] The first main steel pipe comprises a pre-buried screw rod, a first fixed nut, a first positioning ring fixedly connected to one end of the first main steel pipe, a first positioning hole arranged on the surface of the first positioning ring, a pre-buried screw rod fixedly connected to a concrete reference surface, and a first fixed nut threadedly connected to the pre-buried screw rod.
[0009] The further improvement of the utility model technical scheme lies in: one end of the first main steel pipe is fixedly connected with a first fixed edge, the surface of the first fixed edge is provided with a first edge hole, and the bottom end of the first fixed edge is fixedly connected with a second rubber pad.
[0010] The further improvement of the utility model technical scheme lies in: one end of the first main steel pipe is fixedly connected with a first connecting ring, the surface of the first connecting ring is provided with a first connecting hole, and the surface of the first connecting ring is fixedly connected with a first rubber pad.
[0011] The further improvement of the utility model technical scheme lies in: one end of the second main steel pipe is fixedly connected with a second fixed edge, the upper end of the second fixed edge is fixedly connected with a second rubber pad, another part of the upper end of the second fixed edge is fixedly connected with a first fixed screw rod, the upper end of the first fixed screw rod is threadedly connected with a second fixed nut, the first main steel pipe and the second main steel pipe are detachably connected through the first fixed screw rod and the second fixed nut, one end of the second main steel pipe is fixedly connected with a first positioning ring, and the other end of the second main steel pipe is fixedly connected with a first connecting ring.
[0012] The further improvement of the utility model technical scheme lies in: one end of the upper extension steel pipe is fixedly connected with a second connecting ring, one end of the second connecting ring is fixedly connected with a second fixed screw rod, the upper end of the second fixed screw rod is threadedly connected with a third fixed nut, the upper extension steel pipe is detachably connected with the first main steel pipe through the second fixed screw rod and the third fixed nut, one end of the upper extension steel pipe is fixedly connected with a third fixed edge, the surface of the third fixed edge is provided with a second edge hole, the bottom end of the third fixed edge is fixedly connected with a second rubber pad, and the other end of the upper extension steel pipe is fixedly connected with a first connecting ring.
[0013] The further improvement of the utility model technical scheme lies in: one end of the lower extension steel pipe is fixedly connected with a fourth fixed edge, the surface of the fourth fixed edge is fixedly connected with a second rubber pad, the upper end of the fourth fixed edge is fixedly connected with a third fixed screw rod, the upper end of the third fixed screw rod is threadedly connected with a fourth fixed nut, the lower extension steel pipe is detachably connected with the upper extension steel pipe through the third fixed screw rod and the fourth fixed nut, one end of the lower extension steel pipe is fixedly connected with a second connecting ring, the lower extension steel pipe is detachably connected with the second main steel pipe through the second fixed screw rod and the third fixed nut, and the other end of the lower extension steel pipe is fixedly connected with a first connecting ring.
[0014] The further improvement of the utility model technical scheme lies in: the surface of the first main steel pipe, the second main steel pipe, the upper extension steel pipe and the lower extension steel pipe is provided with an abutting precision observation line.
[0015] Due to the adoption of the above technical scheme, the present application has the following technical progress compared with the prior art:
[0016] 1. The steel pipe recycled concrete column butt joint device comprises a first main steel pipe, a first positioning ring, a first positioning hole, a pre-buried screw rod, a first fixing nut, a first fixing edge, a first edge hole, a first connecting ring, a first connecting hole, a first rubber pad, a second rubber pad, a second main steel pipe, a second fixing edge, a first fixing screw rod and a second fixing nut.
[0017] 2. The steel pipe recycled concrete column butt joint device comprises an upper extending steel pipe, a second connecting ring, a second fixing screw rod, a third fixing nut, a third fixing edge, a second edge hole, a lower extending steel pipe, a fourth fixing edge, a third fixing screw rod, a fourth fixing nut and a butt joint precision observation line. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a three-dimensional structure schematic view of the present application;
[0019] Figure 2 It is a first main steel pipe structure schematic view of the present application;
[0020] Figure 3 It is a second main steel pipe structure schematic view of the present application;
[0021] Figure 4The upper extending steel pipe structure schematic view of the utility model shows that
[0022] Figure 5 The lower extending steel pipe structure schematic view of the utility model shows that
[0023] In the drawing: 1, first main steel pipe; 11, first positioning ring; 12, first positioning hole; 13, pre-buried screw rod; 14, first fixed nut; 15, first fixed edge; 16, first edge hole; 17, first connecting ring; 18, first connecting hole; 19, first rubber pad; 110, second rubber pad; 2, second main steel pipe; 21, second fixed edge; 22, first fixed screw rod; 23, second fixed nut; 3, upper extending steel pipe; 31, second connecting ring; 32, second fixed screw rod; 33, third fixed nut; 34, third fixed edge; 35, second edge hole; 4, lower extending steel pipe; 41, fourth fixed edge; 42, third fixed screw rod; 43, fourth fixed nut; 5, butt joint precision observation line. DETAILED DESCRIPTION
[0024] The utility model will be further explained in detail in connection with the following examples:
[0025] Example 1
[0026] As Figures 1-5 shown, the utility model provides a kind of steel pipe recycled concrete column butt joint device, including first main steel pipe 1, the bottom end of first main steel pipe 1 is provided with second main steel pipe 2, one end of first main steel pipe 1 is provided with upper extending steel pipe 3, the bottom end of upper extending steel pipe 3 is provided with lower extending steel pipe 4, first main steel pipe 1 includes pre-buried screw rod 13, first fixed nut 14, one end of first main steel pipe 1 is fixedly connected with first positioning ring 11, the surface of first positioning ring 11 is provided with first positioning hole 12, pre-buried screw rod 13 is fixedly connected with concrete reference surface, first fixed nut 14 is connected with pre-buried screw rod 13 by screw, one end of first main steel pipe 1 is fixedly connected with first fixed edge 15, the surface of first fixed edge 15 is provided with first edge hole 16, the bottom end of first fixed edge 15 is fixedly connected with second rubber pad 110, one end of first main steel pipe 1 is fixedly connected with first connecting ring 17, the surface of first connecting ring 17 is provided with first connecting hole 18, the surface of first connecting ring 17 is fixedly connected with first rubber pad 19, one end of second main steel pipe 2 is fixedly connected with second fixed edge 21, the upper end of second fixed edge 21 is fixedly connected with second rubber pad 110, the upper end of second fixed edge 21 is fixedly connected with first fixed screw rod 22 in another place, the upper end of first fixed screw rod 22 is fixedly connected with second fixed nut 23 by screw, first main steel pipe 1 and second main steel pipe 2 are detachably connected by first fixed screw rod 22 and second fixed nut 23, one end of second main steel pipe 2 is fixedly connected with first positioning ring 11, the other end of second main steel pipe 2 is fixedly connected with first connecting ring 17.
[0027] In the embodiment, the embedded screw rod 13 is preset at a suitable position above the concrete reference surface, the first main steel pipe 1 and the second main steel pipe 2 are connected together through the first fixing screw rod 22 and are fixed through the setting of the second fixing nut 23, the first main steel pipe 1 and the second main steel pipe 2 are respectively inserted with the embedded screw rod 13 through the first positioning ring 11, the first main steel pipe 1 and the second main steel pipe 2 are connected with the concrete reference surface through the first fixing nut 14, and the first main steel pipe 1 and the second main steel pipe 2 are connected more closely through the setting of the second rubber pad 110.
[0028] Embodiment 2
[0029] As Figures 1-5 shown, based on the embodiment 1, the utility model provides a technical scheme: preferably, one end of the upper extension steel pipe 3 is fixedly connected with the second connecting ring 31, one end of the second connecting ring 31 is fixedly connected with the second fixing screw rod 32, the upper end of the second fixing screw rod 32 is threadedly connected with the third fixing nut 33, the upper extension steel pipe 3 is detachably connected with the first main steel pipe 1 through the second fixing screw rod 32 and the third fixing nut 33, one end of the upper extension steel pipe 3 is fixedly connected with the third fixed edge 34, the surface of the third fixed edge 34 is provided with the second edge hole 35, the bottom end of the third fixed edge 34 is fixedly connected with the second rubber pad 110, the other end of the upper extension steel pipe 3 is fixedly connected with the first connecting ring 17, one end of the lower extension steel pipe 4 is fixedly connected with the fourth fixed edge 41, the surface of the fourth fixed edge 41 is fixedly connected with the second rubber pad 110, the upper end of the fourth fixed edge 41 is fixedly connected with the third fixing screw rod 42, the upper end of the third fixing screw rod 42 is threadedly connected with the fourth fixing nut 43, the lower extension steel pipe 4 is detachably connected with the upper extension steel pipe 3 through the third fixing screw rod 42 and the fourth fixing nut 43, one end of the lower extension steel pipe 4 is fixedly connected with the second connecting ring 31, the lower extension steel pipe 4 is detachably connected with the second main steel pipe 2 through the second fixing screw rod 32 and the third fixing nut 33, the other end of the lower extension steel pipe 4 is fixedly connected with the first connecting ring 17, and the surfaces of the first main steel pipe 1, the second main steel pipe 2, the upper extension steel pipe 3 and the lower extension steel pipe 4 are all provided with the butt precision observation line 5.
[0030] In this embodiment, the upper extension steel pipe 3 and the lower extension steel pipe 4 are connected together by the third fixing screw 42 and fixed by the fourth fixing nut 43. The second fixing screw 32 at the bottom of the upper extension steel pipe 3 and the lower extension steel pipe 4 are connected to the first connecting ring 17 at the top of the first main steel pipe 1 and the second main steel pipe 2, so that the first main steel pipe 1 is connected to the upper extension steel pipe 3 and the second main steel pipe 2 is connected to the lower extension steel pipe 4. They are fixed by the third fixing nut 33. The first rubber pad 19 makes the connection between the first main steel pipe 1 and the upper extension steel pipe 3, and the second main steel pipe 2 and the lower extension steel pipe 4 closer. The setting of the docking accuracy observation line 5 facilitates the reference of docking accuracy when the device is docked. After the device is assembled and connected, concrete is poured into the device. After the concrete solidifies, the docking of the concrete column is completed. If a longer concrete column needs to be docked, multiple sets of upper extension steel pipes 3 and lower extension steel pipes 4 need to be installed and poured and solidified. When disassembling, the device can be disassembled in the reverse order.
[0031] The working principle of this steel pipe recycled concrete column docking device will be explained in detail below.
[0032] like Figures 1-5 As shown, the pre-embedded screw 13 is pre-positioned at a suitable position above the concrete reference surface. The first main steel pipe 1 and the second main steel pipe 2 are connected together by the first fixing screw 22 and fixed by the second fixing nut 23. The first main steel pipe 1 and the second main steel pipe 2 are respectively inserted into the pre-embedded screw 13 through the first positioning ring 11. The first main steel pipe 1 and the second main steel pipe 2 are connected to the concrete reference surface by the first fixing nut 14. The second rubber pad 110 allows the first main steel pipe 1 and the second main steel pipe 2 to be connected more closely. The upper extension steel pipe 3 and the lower extension steel pipe 4 are connected together by the third fixing screw 42 and fixed by the fourth fixing nut 43. The second fixing screw 32 at the bottom of the upper extension steel pipe 3 and the lower extension steel pipe 4 are then connected to the concrete reference surface. The first connecting ring 17 at the top of the first main steel pipe 1 and the second main steel pipe 2 connects the first main steel pipe 1 with the upper extension steel pipe 3 and the second main steel pipe 2 with the lower extension steel pipe 4. They are then fixed by the third fixing nut 33. The first rubber pad 19 makes the connection between the first main steel pipe 1 and the upper extension steel pipe 3, and the second main steel pipe 2 and the lower extension steel pipe 4 closer. The docking accuracy observation line 5 facilitates the reference of docking accuracy during device docking. After the device is assembled and connected, concrete is poured into the device. After the concrete solidifies, the docking of the concrete column is completed. If a longer concrete column needs to be docked, multiple sets of upper extension steel pipes 3 and lower extension steel pipes 4 need to be installed and poured and solidified. When disassembling, the device can be disassembled in the reverse order.
[0033] The utility model has made the detailed description to the utility model generally above, but can make some modification or improvement to it on the basis of the utility model, this is obvious to the general skilled person in the technical field. Therefore, the modification or improvement without departing from the utility model thought spirit, all are within the protection scope of the utility model.
Claims
1. A butt joint device for a recycled concrete column of a steel pipe, comprising a first main steel pipe (1), characterized in that: The bottom end of the first main steel pipe (1) is provided with a second main steel pipe (2), and one end of the first main steel pipe (1) is provided with an upper extension steel pipe (3), and the bottom end of the upper extension steel pipe (3) is provided with a lower extension steel pipe (4); The first main steel pipe (1) comprises a pre-buried screw rod (13) and a first fixed nut (14), one end of the first main steel pipe (1) is fixedly connected with a first positioning ring (11), the surface of the first positioning ring (11) is provided with a first positioning hole (12), the pre-buried screw rod (13) is fixedly connected with a concrete reference surface, and the first fixed nut (14) is threadedly connected with the pre-buried screw rod (13).
2. The steel pipe recycled concrete column abutment device according to claim 1, characterized in that: One end of the first main steel pipe (1) is fixedly connected with a first fixed edge (15), the surface of the first fixed edge (15) is provided with a first edge hole (16), and the bottom end of the first fixed edge (15) is fixedly connected with a second rubber pad (110).
3. The steel pipe recycled concrete column abutment device of claim 1, wherein: One end of the first main steel pipe (1) is fixedly connected with a first connecting ring (17), the surface of the first connecting ring (17) is provided with a first connecting hole (18), and the surface of the first connecting ring (17) is fixedly connected with a first rubber pad (19).
4. The steel pipe recycled concrete column abutment device of claim 1, wherein: One end of the second main steel pipe (2) is fixedly connected with a second fixed edge (21), the upper end of the second fixed edge (21) is fixedly connected with a second rubber pad (110), another part of the upper end of the second fixed edge (21) is fixedly connected with a first fixed screw rod (22), the upper end of the first fixed screw rod (22) is threadedly connected with a second fixed nut (23), the first main steel pipe (1) and the second main steel pipe (2) are detachably connected through the first fixed screw rod (22) and the second fixed nut (23), one end of the second main steel pipe (2) is fixedly connected with the first positioning ring (11), and the other end of the second main steel pipe (2) is fixedly connected with the first connecting ring (17).
5. The steel pipe recycled concrete column abutment device of claim 1, wherein: One end of the upper extension steel pipe (3) is fixedly connected with a second connecting ring (31), one end of the second connecting ring (31) is fixedly connected with a second fixed screw rod (32), the upper end of the second fixed screw rod (32) is threadedly connected with a third fixed nut (33), the upper extension steel pipe (3) is detachably connected with the first main steel pipe (1) through the second fixed screw rod (32) and the third fixed nut (33), one end of the upper extension steel pipe (3) is fixedly connected with a third fixed edge (34), the surface of the third fixed edge (34) is provided with a second edge hole (35), the bottom end of the third fixed edge (34) is fixedly connected with a second rubber pad (110), and the other end of the upper extension steel pipe (3) is fixedly connected with the first connecting ring (17).
6. The steel pipe recycled concrete column abutment device of claim 1, wherein: One end of the lower extension steel pipe (4) is fixedly connected with a fourth fixed edge (41), the surface of the fourth fixed edge (41) is fixedly connected with a second rubber pad (110), the upper end of the fourth fixed edge (41) is fixedly connected with a third fixed screw rod (42), the upper end of the third fixed screw rod (42) is threadedly connected with a fourth fixed screw nut (43), the lower extension steel pipe (4) is detachably connected with the upper extension steel pipe (3) through the third fixed screw rod (42) and the fourth fixed screw nut (43), one end of the lower extension steel pipe (4) is fixedly connected with a second connecting ring (31), the lower extension steel pipe (4) is detachably connected with the second main steel pipe (2) through a second fixed screw rod (32) and a third fixed screw nut (33), the other end of the lower extension steel pipe (4) is fixedly connected with a first connecting ring (17).
7. The steel pipe recycled concrete column abutment device of claim 1, wherein: The surface of the first main steel pipe (1), the second main steel pipe (2), the upper extension steel pipe (3) and the lower extension steel pipe (4) is provided with a butt precision observation line (5).
Citation Information
Patent Citations
Steel pipe recycled concrete post interfacing apparatus
CN206681166U