Temporary support column dismantling device under half-covering excavator station roof plate

Abstract

The utility model discloses a kind of temporary support column dismantling devices under half-cover excavated car station roof, including support frame, winch, binding piece and pulley assembly, the support frame is supported on station middle plate, and is formed by multiple parts detachable assembly, the pulley assembly is located at the top of support frame, the winch is fixed on station middle plate, and is wound with pull rope, the pull rope is wound on pulley assembly, the binding piece is hung on pulley assembly by pull rope, for binding temporary support column. The temporary support column dismantling device under half-cover excavated car station roof meets the lifting dismantling requirement of temporary support column, and carrying capacity is large, and safety is high.

Description

Technical Field

[0001] This utility model relates to the technical field of station construction equipment, specifically to a device for dismantling temporary support columns under the roof slab of a semi-cut-and-cover station. Background Technology

[0002] Urban rail transit stations in busy urban areas are generally laid underground and are often located at intersections. To meet traffic diversion needs, before the main station construction, it is often necessary to construct a top slab at the intersection to serve as a road surface cover. Steel-concrete composite core columns are often used as temporary support columns under the top slab. After the main structure of the subway station is completed, the steel-concrete composite core columns need to be removed.

[0003] A Chinese patent document with authorization announcement number CN222989661U discloses a dismantling device for a temporary steel pipe column under a semi-cut-and-cover railway station cover. The device includes an upper lifting lug installed on the top plate or middle plate of the steel pipe column, a first U-shaped retaining ring connected to the upper lifting lug, and a steel wire rope extending out of the steel pipe column connected to the first U-shaped retaining ring. An electric hoist is connected to the bottom end of the steel wire rope, and the upper hook of the electric hoist is connected to the steel wire rope. A fixed pulley is installed at the top of the steel pipe column, and a hemp rope is connected between the fixed pulley and the upper hook of the electric hoist. The upper 1 / 3 height of the steel pipe column is connected to the lower hook of the electric hoist. Existing technologies, exemplified by the dismantling device for temporary steel pipe columns under the cover slab of a semi-cut-and-cover station, require pre-embedded lifting lugs on the top or middle slab of the steel pipe column as lifting points. However, in actual construction, due to insufficient experience of the construction unit and other reasons, there are often situations where lifting lugs or hooks are not pre-embedded on the cut-and-cover top slab. In the face of this situation, the existing construction method is to use rebar to serve as a temporary hook on the cut-and-cover top slab. The load-bearing capacity of this temporary hook is limited, and it is easy for it to fall off the cut-and-cover top slab, causing safety accidents. It is difficult to meet the requirements for lifting and dismantling heavy temporary support columns. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a temporary support column removal device under the roof of a semi-cut-and-cover station that meets the requirements for lifting and removing temporary support columns, has a large load-bearing capacity, and high safety.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A device for dismantling temporary support columns under the roof slab of a semi-cut-and-cover station includes a support frame, a winch, a binding member, and a pulley assembly. The support frame is supported on the middle slab of the station and is formed by detachable assembly of multiple parts. The pulley assembly is located on the top of the support frame. The winch is fixed to the middle slab of the station and has a pull rope wound around it. The pull rope is wound around the pulley assembly. The binding member is suspended from the pulley assembly by the pull rope and is used to bind the temporary support column.

[0007] As a further improvement to the above technical solution:

[0008] The top of the support frame is equipped with a lifting support mechanism, which supports the station roof.

[0009] The lifting support mechanism includes a support screw, a screwing part at the bottom of the support screw, and a support block at the top of the support screw. The support screw is threadedly connected to the support frame, and the support block supports the station roof.

[0010] The lifting support mechanism is provided in multiple parts, which are arranged at intervals around the center of the top of the support frame.

[0011] The bottom of the support frame is equipped with a lifting and supporting mechanism, which abuts against the middle plate of the station.

[0012] The lifting and supporting mechanism includes a supporting screw and a supporting block located at the bottom of the supporting screw. The supporting screw passes through the bottom of the support frame and is provided with a pair of locking nuts. The pair of locking nuts are clamped on the support frame, and the supporting block abuts against the station center plate.

[0013] The support frame includes a top seat and multiple support legs. The top of each support leg is detachably connected to the top seat and the bottom opens outward. Adjacent support legs are detachably connected by a connecting rod. The bottom of each support leg is supported on the station center plate. The pulley assembly and the lifting support mechanism are both located on the top seat, and the lifting support mechanism is located at the bottom of the support leg.

[0014] The bottom of the support leg is equipped with rollers.

[0015] The support legs are equipped with lifting and supporting mechanisms on both sides of the rollers.

[0016] The support leg is composed of multiple detachable connecting sections.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] This utility model discloses a temporary support column removal device under the roof slab of a semi-cut-and-cover railway station. The removal process involves first setting up a support frame on one side of the temporary support column, supporting it on the station's central slab, and then securing the temporary support column with bindings. Next, the connection between the temporary support column and the station roof slab is severed. Then, starting from the winch side, the connecting steel pipe and concrete between the temporary support column and the station's central slab are gradually broken. The winch's tensioning and rope-releasing action ensures that the top of the temporary support column tilts away from the winch onto the station's central slab. This temporary support column removal device under the roof slab of a semi-cut-and-cover railway station, through the support of the support frame and the tensioning and rope-releasing action of the winch, meets the requirements for lifting and removing heavy temporary support columns, and has a large load-bearing capacity and high safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the temporary support column removal device under the roof slab of a semi-cut-and-cover station of this utility model.

[0020] Figure 2 yes Figure 1 A magnified structural diagram of point A in the middle.

[0021] Figure 3 This is a schematic diagram of the second embodiment of the temporary support column removal device under the roof of a semi-cut-and-cover station according to this utility model.

[0022] Figure 4 yes Figure 3 A magnified structural diagram at point B in the middle.

[0023] The labels in the diagram represent:

[0024] 1. Support frame; 11. Top seat; 12. Support leg; 13. Connecting rod; 14. Roller; 2. Winch; 21. Pull rope; 3. Binding parts; 4. Pulley assembly; 5. Station center plate; 6. Temporary support column; 7. Lifting and lowering support mechanism; 71. Support screw; 72. Tightening part; 73. Support block; 8. Station roof plate; 9. Lifting and lowering support mechanism; 91. Support screw; 92. Support block; 93. Locking nut. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example 1:

[0030] Figure 1 and Figure 2 This invention illustrates an embodiment of the temporary support column removal device under the roof slab of a semi-cut-and-cover station. The device includes a support frame 1, a winch 2, a binding member 3, and a pulley assembly 4. The support frame 1 is supported on the station's central slab 5 and is formed by detachable assembly of multiple parts. The pulley assembly 4 is located on the top of the support frame 1. The winch 2 is fixed on the station's central slab 5 and has a pull rope 21 wound around it. The pull rope 21 is wound around the pulley assembly 4. The binding member 3 is suspended from the pulley assembly 4 by the pull rope 21 and is used to bind the temporary support column 6.

[0031] The dismantling process of temporary support column 6 involves first setting up support frame 1 on one side of temporary support column 6, supporting it on the station slab 5, and then securing temporary support column 6 with binding material 3. Next, the connection between temporary support column 6 and station roof slab 8 is severed. Then, starting from the winch 2 side, the connecting steel pipe and concrete between temporary support column 6 and station slab 5 are gradually broken, and the top of temporary support column 6 is tilted away from the winch 2 onto station slab 5 by the tightening and releasing of the rope. This temporary support column dismantling device under the roof slab of a semi-cut-and-cover station, through the support of support frame 1 and the tightening and releasing of the rope by winch 2, meets the requirements for lifting and dismantling the heavy temporary support column 6, and has a large load-bearing capacity and high safety.

[0032] Furthermore, in this embodiment, the top of the support frame 1 is provided with a lifting support mechanism 7, which supports the station roof slab 8. In this way, by supporting the station roof slab 8 with the lifting support mechanism 7, the support frame 1 is clamped between the station middle plate 5 and the station roof slab 8, which can improve the overall stability and the stability of the station roof slab 8.

[0033] Furthermore, in this embodiment, as Figure 2 As shown, the lifting support mechanism 7 includes a support screw 71, a screwing part 72 located at the bottom of the support screw 71, and a support block 73 located at the top of the support screw 71. The support screw 71 is threadedly connected to the support frame 1, and the support block 73 supports the station roof slab 8. After the support frame 1 is placed in the set position on the station middle plate 5, the screwing part 72 is rotated to make the support block 73 support the station roof slab 8. For disassembly, the screwing part 72 is rotated in the opposite direction to separate the support block 73 from the station roof slab 8. The lifting support mechanism 7 has a simple structure and is easy to operate.

[0034] Furthermore, in this embodiment, multiple lifting support mechanisms 7 are provided, arranged at intervals around the center of the top of the support frame 1. The top of the support frame 1 is supported on the station roof slab 8 by multiple lifting support mechanisms 7, improving the overall fixing effect and stability.

[0035] Furthermore, in this embodiment, the support frame 1 includes a top seat portion 11 and multiple support leg portions 12. The top end of each support leg portion 12 is detachably connected to the top seat portion 11, and the bottom end opens outward. Adjacent support leg portions 12 are detachably connected via connecting rods 13. The bottom end of the support leg portion 12 is supported on the station center plate 5. The pulley assembly 4 and the lifting top support mechanism 7 are both located on the top seat portion 11. The top end of each support leg portion 12 is detachably connected to the top seat portion 11, such as by a pin for rotational connection or by bolt for fixing connection, facilitating assembly and disassembly. The support leg portion 12 is detachably connected to the connecting rod 13, such as by bolt connection, facilitating assembly and disassembly. In this way, the support frame 1 can be disassembled into the top seat portion 11, multiple support leg portions 12, and multiple connecting rods 13, facilitating separate handling, facilitating separate delivery to the area below the station roof plate 8 for reassembly, and facilitating removal from the area below the station roof plate 8 after disassembly.

[0036] Furthermore, in this embodiment, the bottom end of the support leg portion 12 is provided with a roller 14 to facilitate movement and position adjustment.

[0037] Furthermore, in this embodiment, the support leg portion 12 is composed of multiple detachable segments, which facilitates further disassembly and movement of the support leg portion 12 into multiple segments, thereby further improving the ease of movement. Preferably, the segments of the support leg portion 12 can be fixedly connected by bolts. More preferably, the support leg portion 12 is in the shape of a straight rod.

[0038] Example 2:

[0039] Figure 3 and Figure 4 This paper illustrates another embodiment of the temporary support column removal device under the roof slab of a partially cut-and-cover station according to the present invention. The structure of the temporary support column removal device under the roof slab of the partially cut-and-cover station in this embodiment is basically the same as that in the first embodiment, except that: in this embodiment, the bottom of the support frame 1 is provided with a lifting and supporting mechanism 9, which abuts against the middle slab 5 of the station. In this way, the bottom of the support frame 1 can abut against the middle slab 5 of the station through the lifting and supporting mechanism 9. On the one hand, this facilitates operation at the bottom of the support frame 1, so that the support frame 1 is clamped and fixed between the roof slab 8 and the middle slab 5 of the station and the lifting and supporting mechanism 7 can be released from the supporting effect of the roof slab 8, making the operation more convenient. On the other hand, if the bottom of the support frame 1 is provided with rollers 14, the lifting and supporting mechanism 9 can be used to raise the rollers 14, avoiding damage to the rollers 14 by abutting against the middle slab 5 of the station. Specifically, the lifting and supporting mechanism 9 is located at the bottom end of the support leg portion 12.

[0040] Further, in this embodiment, the lifting and supporting mechanism 9 includes a supporting screw 91 and a supporting block 92 located at the bottom of the supporting screw 91. The supporting screw 91 passes through the bottom of the support frame 1, and a pair of locking nuts 93 are provided on the supporting screw 91. The pair of locking nuts 93 are clamped on the support frame 1, and the supporting block 92 abuts against the station center plate 5. Preferably, the bottom of the support frame 1 is provided with a base plate, and the base plate is provided with a through hole. The supporting screw 91 is movably inserted into the through hole. By screwing the pair of locking nuts 93, the pair of locking nuts 93 can be clamped on the support frame 1 and the supporting block 92 can be abutted against the station center plate 5, and the height of the base plate and roller 14 from the station center plate 5 can be adjusted.

[0041] Furthermore, in this embodiment, the support leg portion 12 is provided with lifting and supporting mechanisms 9 on both sides of the roller 14 to improve the stability of the clamping.

[0042] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A device for dismantling temporary support columns under the roof slab of a semi-cut-and-cover railway station, characterized in that: The system includes a support frame (1), a winch (2), a binding member (3), and a pulley assembly (4). The support frame (1) is supported on the station center plate (5) and is formed by multiple detachable assembly parts. The pulley assembly (4) is located on the top of the support frame (1). The winch (2) is fixed on the station center plate (5) and has a pull rope (21) wrapped around it. The pull rope (21) is wrapped around the pulley assembly (4). The binding member (3) is suspended on the pulley assembly (4) by the pull rope (21) and is used to bind temporary support columns (6).

2. The temporary support column removal device under the roof slab of a semi-cut-and-cover station as described in claim 1, characterized in that: The top of the support frame (1) is provided with a lifting support mechanism (7), which supports the station roof plate (8).

3. The temporary support column removal device under the roof slab of a semi-cut-and-cover station according to claim 2, characterized in that: The lifting support mechanism (7) includes a support screw (71), a screwing part (72) at the bottom of the support screw (71), and a support block (73) at the top of the support screw (71). The support screw (71) is threadedly connected to the support frame (1), and the support block (73) supports the station roof plate (8).

4. The temporary support column removal device under the roof slab of a semi-cut-and-cover station according to claim 2, characterized in that: The lifting support mechanism (7) is provided in multiple units, which are arranged at intervals around the center of the top of the support frame (1).

5. The device for dismantling temporary support columns under the roof slab of a semi-cut-and-cover station according to any one of claims 2 to 4, characterized in that: The bottom of the support frame (1) is provided with a lifting and supporting mechanism (9), which abuts against the station center plate (5).

6. The temporary support column removal device under the roof slab of a semi-cut-and-cover station according to claim 5, characterized in that: The lifting and supporting mechanism (9) includes a supporting screw (91) and a supporting block (92) located at the bottom of the supporting screw (91). The supporting screw (91) passes through the bottom of the support frame (1) and is provided with a pair of locking nuts (93). The pair of locking nuts (93) are clamped on the support frame (1), and the supporting block (92) abuts against the station center plate (5).

7. The temporary support column removal device under the roof slab of a semi-cut-and-cover station according to claim 5, characterized in that: The support frame (1) includes a top seat part (11) and multiple support legs (12). The top of each support leg part (12) is detachably connected to the top seat part (11), and the bottom is open outward. Adjacent support legs (12) are detachably connected by a connecting rod (13). The bottom of the support leg part (12) is supported on the station center plate (5). The pulley assembly (4) and the lifting top support mechanism (7) are both located on the top seat part (11). The lifting support mechanism (9) is located at the bottom of the support leg part (12).

8. The temporary support column removal device under the roof slab of a semi-cut-and-cover station according to claim 7, characterized in that: The bottom end of the support leg (12) is provided with a roller (14).

9. The temporary support column removal device under the roof slab of a semi-cut-and-cover station according to claim 8, characterized in that: The support leg part (12) is provided with lifting and supporting mechanisms (9) on both sides of the roller (14).

10. The temporary support column removal device under the roof slab of a semi-cut-and-cover station according to claim 7, characterized in that: The support leg (12) is composed of multiple detachable connected sections.

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