Column bottom supporting device for hoisting reinforcement cavity column

Abstract

The utility model discloses a column bottom supporting device for hoisting a reinforcement cavity column, and mainly relates to the field of cavity column hoisting. Comprising a foundation platform and a vertical supporting platform making contact with the bottom of a cavity column, steel bars extending outwards are arranged at the top and the bottom of the cavity column, a plurality of protection cavities used for containing the steel bars are formed in the foundation platform, a buffer pad making contact with the bottom of the cavity column is arranged on the vertical supporting platform, and the protection cavities are used for containing the steel bars. Elastic telescopic rods are symmetrically arranged on the two sides of the foundation platform, clamping plates are arranged on the elastic telescopic rods, and the clamping plates on the two sides clamp the two sides of the cavity column respectively. The utility model has the beneficial effects that the technical problem that the column bottom reinforcing steel bar is easy to bend and damage when the cavity column is hoisted can be avoided, and tight connection with the column bottom is realized, so that the bottom of the cavity column is effectively supported when the cavity column is hoisted, the reinforcing steel bar at the column bottom is prevented from being bent and damaged, and the perpendicularity of the reinforcing steel bar is ensured; and the firmness of the assembled building is ensured.

Description

Technical Field

[0001] The utility model relates to the field of hollow column hoisting, in particular to a column bottom supporting device for hoisting a hollow column with reinforcement. Background Art

[0002] In order to meet the needs of prefabricated structures, prefabricated cavity columns with reinforcement at both ends are increasingly being used. The length of the reinforcement at both ends of the cavity column should meet the requirements of mechanical connection and operation surface at the construction site. Generally, the reinforcement length is in the range of 200mm to 300mm. Controlling the straightness of the reinforcement is the key factor to ensure the verticality of the mechanical connection of the steel bars.

[0003] At present, the hoisting construction of the reinforced hollow column is mostly carried out by using a tower crane to directly hoist the horizontally placed hollow column to a vertical direction. During this hoisting process, the steel bars protruding from the bottom of the hollow column are deformed, which affects the construction quality of the mechanical connection of the steel bars at the bottom of the column and the firmness of the assembled building. The existing column bottom support device is easily separated from the column bottom during use, which affects the support effect, resulting in the need to further improve the protection effect of the steel bars protruding from the column bottom. Utility Model Content

[0004] The purpose of the utility model is to provide a column bottom support device for hoisting a hollow column with reinforcement, which can avoid the technical problem that the reinforcement at the bottom of the column is easily bent and damaged when the hollow column is hoisted, and realize a close connection with the bottom of the column, thereby providing effective support to the bottom of the hollow column when the hollow column is hoisted, avoiding bending and damage of the reinforcement at the bottom of the column, ensuring the verticality of the reinforcement, and ensuring the firmness of the building after assembly.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical solutions:

[0006] A column bottom support device for hoisting a reinforced cavity column comprises a basic platform and a vertical support platform in contact with the bottom of the cavity column, the top and bottom of the cavity column are provided with steel bars extending outward, the basic platform is provided with a plurality of protection cavities for accommodating the steel bars, the vertical support platform is provided with a buffer pad in contact with the bottom of the cavity column, elastic telescopic rods are symmetrically provided on both sides of the basic platform, the elastic telescopic rods are provided with clamping plates, and the clamping plates on both sides are respectively clamped on both sides of the cavity column.

[0007] Furthermore, the elastic telescopic rod includes a fixed sleeve and a sliding rod, the sliding rod is slidably connected to the inside of the fixed sleeve, a compression spring is provided between the sliding rod and the fixed sleeve, and the clamping plate is arranged on the sliding rod.

[0008] Furthermore, a limiting protrusion is provided at the end of the slide rod, a limiting step used in conjunction with the limiting protrusion is provided at the end of the fixing sleeve, and the compression spring is arranged between the limiting protrusion and the limiting step.

[0009] Furthermore, the basic platform includes a transverse support rod and a longitudinal support rod, the protection cavity is arranged on the top of the longitudinal support rod, and a protection pad is arranged in the protection cavity.

[0010] Furthermore, the end of the base platform away from the vertical support platform is symmetrically rotatably connected with rollers.

[0011] Furthermore, the vertical support platform includes symmetrically arranged vertical support rods, a connecting rod is provided between two of the vertical support rods, and an oblique reinforcing rod is provided between the connecting rod and the base platform.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The structure of the utility model includes a basic platform and a vertical support platform. When in use, the vertical support platform is in contact with the bottom of the cavity column, and the steel bars extending from the bottom of the column penetrate into the protective cavity on the basic platform. When the cavity column is hoisted from horizontal to vertical, the combination of the basic platform and the vertical support platform realizes effective support for the bottom of the column, avoiding direct contact between the steel bars and the ground, so that the extended steel bars are not subjected to force during the hoisting process, thereby effectively ensuring the integrity and verticality of the steel bars, and ensuring the firmness of the building after subsequent assembly and construction;

[0014] 2. A buffer pad in contact with the bottom of the cavity column is provided on the vertical support platform to avoid damage to the bottom of the cavity column when supporting it, thereby ensuring the integrity of the cavity column. Elastic telescopic rods are symmetrically provided on both sides of the basic platform, and clamps are provided on the elastic telescopic rods. The clamps on both sides are respectively clamped on both sides of the cavity column. Such a structure enables the entire supporting structure to maintain a close fit with the cavity column under the action of the clamps, thereby avoiding the separation of the device from the bottom of the column during the hoisting process, especially in the early stage of hoisting, thereby ensuring the effectiveness of the support to the bottom of the column and improving the protection effect of the steel bars at the bottom of the column. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Attached Figure 2 It is a front view of the utility model.

[0017] Attached Figure 3 It is the attachment of the utility model Figure 2 Cross-sectional view along the AA direction.

[0018] Attached Figure 4 It is a structural schematic diagram of the cavity column of the utility model.

[0019] Numbers shown in the accompanying drawings:

[0020] 1. Basic platform; 11. Horizontal support rod; 12. Longitudinal support rod; 2. Cavity column; 3. Vertical support platform; 31. Vertical support rod; 32. Connecting rod; 33. Oblique reinforcing rod; 4. Steel bar; 5. Protective cavity; 6. Buffer pad; 7. Elastic telescopic rod; 71. Fixed sleeve; 72. Sliding rod; 73. Compression spring; 74. Limiting protrusion; 75. Limiting step; 8. Clamp; 9. Protective pad; 10. Roller. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0022] Reference Figure 1 and Figure 2 The utility model is a column bottom support device for hoisting a ribbed hollow column 2. The main structure includes a basic platform 1 and a vertical support platform 3 in contact with the bottom of the hollow column 2. The basic platform 1 is a horizontal structure, and the vertical support platform 3 is a vertical structure arranged on one side of the basic platform 1. The interior of the hollow column 2 is a hollow structure. Figure 4 The top and bottom of the cavity column 2 are both provided with outwardly extending steel bars 4, which are used to provide support and connect with other structures. The foundation platform 1 is provided with a plurality of protection cavities 5 for accommodating the steel bars 4. During hoisting, the vertical support platform 3 of the device is fitted to the bottom of the cavity, and the steel bars 4 extending from the bottom of the column are deep into the protection cavity 5, so that the vertical support platform 3 can effectively support the column bottom during the hoisting process and the protection cavity 5 can effectively protect the steel bars 4, so that the steel bars 4 are not subjected to stress during the hoisting process of the cavity column 2, avoiding bending and deformation of the steel bars 4, ensuring its verticality and the firmness of the building after assembly. The vertical support platform 3 is provided with a buffer pad 6 in contact with the bottom of the cavity column 2, and the setting of the buffer pad 6 can avoid vertical The supporting platform 3 damages the concrete at the bottom of the column when supporting the bottom of the column, ensuring the integrity of the cavity column 2. Elastic telescopic rods 7 are symmetrically provided on both sides of the basic platform 1. The elastic telescopic rods 7 are elastic telescopic structures. Vertical clamps 8 are welded or integrally formed on the elastic telescopic rods 7. The clamps 8 on both sides are respectively clamped on both sides of the cavity column 2. In the process of the vertical supporting platform 3 being fitted to the bottom of the column, the clamps 8 are pulled to both sides. After the fitting is completed, the clamps 8 on both sides are automatically clamped on both sides of the cavity column 2 under the action of elasticity, so that the device maintains a closer fit with the bottom of the column during the hoisting process, especially in the early stage of hoisting, thereby further ensuring the support for the bottom of the column and the protection of the steel bars 4.

[0023] Preferably, refer to Figure 3 The elastic telescopic rod 7 includes a fixed sleeve 71 and a sliding rod 72. The fixed sleeve 71 is welded or bolted to both sides of the base platform 1. The sliding rod 72 is slidably connected to the inside of the fixed sleeve 71. A compression spring 73 is provided between the sliding rod 72 and the fixed sleeve 71. The clamping plate 8 is arranged on the sliding rod 72. Such a structure compresses the compression spring 73 when the sliding rod 72 slides, so that the reverse elastic force generated by it can make the sliding rod 72 have a tendency to reset, thereby realizing the clamping effect of the clamping plate 8 on the sliding rod 72 on the side of the cavity column 2.

[0024] Preferably, the end of the slide bar 72 is welded or integrally formed with a fixed limiting protrusion 74, and the end of the fixing sleeve 71 is provided with a limiting step 75 for cooperating with the limiting protrusion 74. The cooperation between the limiting protrusion 74 and the limiting step 75 limits the maximum distance that the slide bar 72 slides in the fixing sleeve 71 to prevent the slide bar 72 from being separated from the fixing sleeve 71, and the compression spring 73 is arranged between the limiting protrusion 74 and the limiting step 75. In this way, the slide bar 72 can more accurately compress the compression spring 73 between the limiting protrusion 74 and the limiting step 75 when sliding, so that the reverse elastic force on the slide bar 72 is more stable, thereby ensuring the clamping effect of the clamping plate 8 on the slide bar 72.

[0025] Preferably, the basic platform 1 includes a transverse support rod 11 and a longitudinal support rod 12 made of metal, which are fixed alternately by welding or bolts. The protective cavity 5 is arranged on the top of the longitudinal support rod 12. Specifically, the longitudinal support rod 12 is a channel steel structure, and the protective cavity 5 is a channel-shaped structure of the channel steel. A protective pad 9 is provided in the protective cavity 5. The protective pad 9 is made of sponge or rubber material, so that the steel bar 4 can contact with the protective pad 9 when it penetrates into the protective cavity 5, thereby avoiding wear caused by the contact and movement of the steel bar 4 with the inner wall of the protective cavity 5.

[0026] Preferably, the end of the base platform 1 away from the vertical support platform 3 is symmetrically connected to a roller 10 for rotation. The setting of the roller 10 allows the device to roll and move together with the cavity column 2 through the roller 10 when the cavity column 2 is positioned relative to the support surface during the lifting process, thereby avoiding scratches and damage to the support surface and ensuring the integrity of the support surface.

[0027] Preferably, the vertical support platform 3 includes symmetrically arranged vertical support rods 31, and the vertical support rods 31 are preferably also made of channel steel. A connecting rod 32 is welded or bolted between the two vertical support rods 31, and an oblique reinforcing rod 33 is welded or bolted between the connecting rod 32 and the base platform 1. Such a structure makes the structure of the vertical support platform 3 hollow, and the redundant steel bars 4 entering the protective cavity 5 can penetrate into the hollow area, so as to adapt to the situation where multiple steel bars 4 extend from the bottom of the column, ensuring the tightness of the fit with the bottom of the column. The setting of the oblique reinforcing rod 33 can enhance the structural strength between the vertical support platform 3 and the base platform 1, and improve the strength of the vertical support platform 3 supporting the bottom of the column.

[0028] Working principle: The structure of the utility model includes a basic platform 1 and a vertical support platform 3. When in use, the vertical support platform 3 is in contact with the bottom of the cavity column 2, and the steel bars 4 extending from the bottom of the column penetrate into the protective cavity 5 on the basic platform 1. Such a structure realizes effective support for the bottom of the column when the cavity column 2 is hoisted from horizontal to vertical. The combination of the basic platform 1 and the vertical support platform 3 avoids direct contact between the steel bars 4 and the ground, so that the extended steel bars 4 are not subjected to stress during the hoisting process, thereby effectively ensuring the integrity and verticality of the steel bars 4, and ensuring the firmness of the building after subsequent assembly and construction; on the vertical support platform 3 is provided with a buffer pad 6 in contact with the bottom of the cavity column 2, so that damage to the bottom of the cavity column 2 is avoided when supporting the bottom of the cavity column 2, thereby ensuring the integrity of the cavity column 2. Elastic telescopic rods 7 are symmetrically provided on both sides of the basic platform 1, and clamping plates 8 are provided on the elastic telescopic rods 7. The clamping plates 8 on both sides are respectively clamped on both sides of the cavity column 2. Such a structure enables the entire supporting structure to maintain a close fit with the cavity column 2 under the action of the clamping plates 8, avoiding the separation of the device from the bottom of the column during the hoisting process, especially in the early stage of hoisting, thereby ensuring the effectiveness of the column bottom support and improving the protection effect of the column bottom steel bars 4.

Claims

1. A column bottom support device for hoisting a reinforced hollow column, comprising a base platform (1) and a vertical support platform (3) in contact with the bottom of the hollow column (2), wherein the top and bottom of the hollow column (2) are both provided with outwardly extending steel bars (4), characterized in that: The base platform (1) is provided with a plurality of protective cavities (5) for accommodating steel bars (4), the vertical support platform (3) is provided with a buffer pad (6) in contact with the bottom of the cavity column (2), and elastic telescopic rods (7) are symmetrically provided on both sides of the base platform (1), and clamping plates (8) are provided on the elastic telescopic rods (7), and the clamping plates (8) on both sides are respectively clamped on both sides of the cavity column (2).

2. According to claim 1, a column bottom support device for hoisting a reinforced hollow column is characterized in that: The elastic telescopic rod (7) comprises a fixed sleeve (71) and a sliding rod (72), wherein the sliding rod (72) is slidably connected inside the fixed sleeve (71), a compression spring (73) is provided between the sliding rod (72) and the fixed sleeve (71), and the clamping plate (8) is arranged on the sliding rod (72).

3. According to claim 2, a column bottom support device for hoisting a reinforced hollow column is characterized in that: The end of the slide rod (72) is provided with a limiting protrusion (74), the end of the fixing sleeve (71) is provided with a limiting step (75) used in conjunction with the limiting protrusion (74), and the compression spring (73) is arranged between the limiting protrusion (74) and the limiting step (75).

4. According to claim 1, a column bottom support device for hoisting a reinforced hollow column is characterized in that: The basic platform (1) comprises a transverse support rod (11) and a longitudinal support rod (12); the protection cavity (5) is arranged on the top of the longitudinal support rod (12); and a protection pad (9) is arranged in the protection cavity (5).

5. According to claim 1, a column bottom support device for hoisting a reinforced hollow column is characterized in that: The end of the base platform (1) away from the vertical support platform (3) is symmetrically rotatably connected with a roller (10).

6. The column bottom support device for hoisting a reinforced hollow column according to claim 1, characterized in that: The vertical support platform (3) comprises symmetrically arranged vertical support rods (31), a connecting rod (32) is provided between the two vertical support rods (31), and an oblique reinforcing rod (33) is provided between the connecting rod (32) and the base platform (1).

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