Reusable free-standing concrete precast column

Abstract

This utility model provides a reusable, support-free precast concrete column, relating to the field of building structure technology. It includes an upper precast column body, with a support adjustment assembly at its bottom. Another support adjustment assembly is located on one side of the upper precast column body and the support adjustment assembly. The support adjustment assembly includes a bidirectional screw rod, with a handle connected to the top of the bidirectional screw rod. An upper fixing plate and a lower fixing plate are provided on the surface of the bidirectional screw rod, and threaded holes are formed inside both the upper and lower fixing plates. In this utility model, when it is necessary to support and fix the upper and lower precast column bodies, the distance between the upper and lower fixing plates can be adjusted according to their heights. The fixing is achieved through internally embedded sleeves and bolts. This design is applicable to the support of various precast columns, offering flexibility and improving overall applicability.

Description

Technical Field

[0001] This utility model relates to the field of building structure technology, and in particular to a reusable, unsupported precast concrete column. Background Technology

[0002] Precast columns are concrete columns that are pre-cast in a factory using standardized molds. After curing to the design strength, they are transported to the construction site and then hoisted and connected to form the building's structural frame.

[0003] As described in announcement number CN222936478U, a precast concrete column installation support device belongs to the field of precast component installation technology. It includes: support plates and support columns. At least two support plates are provided, with their ends detachably connected sequentially. Multiple support plates are connected to form a polygonal structure for supporting precast concrete columns. The support columns are installed on the support plates and extend downwards, supporting the ground. This invention forms a polygonal structure for supporting a single precast concrete beam by connecting at least two support plates together. During installation, only a stable connection between the support plates is required; there is no need to measure the distance between components. This design requires lower skill levels from workers and is easy to implement.

[0004] This patent can support and connect precast columns using support plates. However, the existing structure cannot adjust the spacing between the upper and lower fixed plates during use, resulting in low practicality and making it difficult to use flexibly in the precast column production process. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing structures cannot adjust the spacing between the upper and lower fixing plates during use, resulting in low practicality and making them unsuitable for flexible use in the precast column production process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a reusable, support-free precast concrete column, comprising an upper precast column body, a support adjustment assembly at the bottom of the upper precast column body, a support adjustment assembly on one side of the upper precast column body and the support adjustment assembly, the support adjustment assembly comprising a bidirectional screw, a handle connected to the top of the bidirectional screw, an upper fixing plate and a lower fixing plate on the surface of the bidirectional screw, threaded holes being opened inside the upper fixing plate and the lower fixing plate, support frames being connected to the surfaces of the upper fixing plate and the lower fixing plate, slots being opened at the front and rear ends of the lower fixing plate, sliding rods being installed inside the slots, bolts being connected to the surfaces of the upper fixing plate and the lower fixing plate, and embedded sleeves being provided on both sides of the upper precast column body and the support adjustment assembly.

[0007] Furthermore, the bidirectional screw is threadedly connected to both the upper and lower fixing plates via threaded holes.

[0008] Furthermore, the slide bar has an inverted T-shape, and its position and size match the position and size of the slot.

[0009] Furthermore, the inner wall of the slot is in contact with the outer surface of the slide rod, and a sliding connection is formed between the slide rod and the slot.

[0010] Furthermore, each set of bolts is fitted with an anti-loss component, which includes a limiting sleeve and a limiting block inside the limiting sleeve.

[0011] Furthermore, the limiting block and the bolt form a fixed connection, and the outer surface of the limiting block is in contact with the inner wall of the limiting sleeve.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, when it is necessary to support and fix the upper precast column body and the lower precast column body, the distance between the upper fixing plate and the lower fixing plate can be adjusted according to the height of the upper precast column body and the lower precast column body, and the bolts can be used to fix them through the internal pre-embedded sleeve. It can be applied to the support of various precast columns, is flexible in use, and improves the overall applicability.

[0014] 2. In this utility model, when rotating the bolt, the limiting block on the surface can cooperate with the limiting sleeve to play a limiting role, so as to avoid the problem of easy loss after disassembling the bolt. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a reusable, unsupported precast concrete column is provided for this utility model.

[0016] Figure 2 An exploded structural diagram of a reusable, unsupported precast concrete column is provided for this utility model.

[0017] Figure 3 A partial exploded structural diagram of a reusable, unsupported precast concrete column is provided for this utility model.

[0018] Figure 4 This invention presents a partial cross-sectional structural diagram of a reusable, unsupported precast concrete column.

[0019] Legend: 1. Upper precast column body; 2. Support adjustment assembly; 201. Two-way screw; 202. Turning handle; 203. Upper fixing plate; 204. Lower fixing plate; 205. Threaded hole; 206. Support frame; 207. Slot; 208. Sliding rod; 209. Bolt; 210. Embedded sleeve; 3. Anti-loss assembly; 301. Limiting sleeve; 302. Limiting block; 4. Lower precast column body. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1, such as Figure 1 - Figure 3 As shown, this utility model provides a reusable, support-free precast concrete column, including an upper precast column body 1. A support adjustment assembly 2 is provided at the bottom of the upper precast column body 1 and on one side of the upper precast column body 1 and the support adjustment assembly 2. The support adjustment assembly 2 includes a bidirectional screw 201, with a handle 202 connected to the top of the bidirectional screw 201. An upper fixing plate 203 and a lower fixing plate 204 are provided on the surface of the bidirectional screw 201. Both the upper fixing plate 203 and the lower fixing plate 204 have threaded holes 205 inside. Support frames 206 are connected to the surfaces of both the upper fixing plate 203 and the lower fixing plate 204. The front and rear ends of the fixed plate 204 are provided with slots 207. The inside of the slots 207 is provided with slide rods 208. The surfaces of the upper fixed plate 203 and the lower fixed plate 204 are connected with bolts 209. The upper precast column body 1 and the support adjustment component 2 are provided with embedded sleeves 210 on both sides. The bidirectional screw 201 is threadedly connected to the upper fixed plate 203 and the lower fixed plate 204 through the threaded hole 205. The slide rod 208 is inverted T-shaped. The position and size of the slide rod 208 match the position and size of the slots 207. The inner wall of the slots 207 is in contact with the outer surface of the slide rod 208. The slide rod 208 and the slots 207 form a sliding connection.

[0023] The effect achieved in Embodiment 1 is that, when supporting and fixing the upper precast column body 1 and the lower precast column body 4, a pre-embedded sleeve 210 can be installed according to their height. Then, the distance between the pre-embedded sleeves 210 of the upper precast column body 1 and the lower precast column body 4 can be adjusted. During adjustment, the reverse handle 202 can drive the bidirectional screw 201 to reverse. The reverse rotation of the handle 202 also drives the bidirectional screw 201 to reverse, thus allowing the bidirectional screw 201 to rotate in opposite directions through the threaded hole 205 with both the upper fixing plate 203 and the lower fixing plate 204. This reverse rotation of the threaded holes causes the upper fixing plate 203 and the lower fixing plate 204 to rotate in opposite directions. Simultaneously, 204 moves upward and downward to adjust the spacing. At the same time, the sliding rod 208 also slides within the slot 207, improving stability during spacing adjustment. Once the bolt 209 is adjusted to the position of the embedded sleeve 210, it can be rotated to enter the embedded sleeve 210 for installation and fixation. After the grout reaches its design strength, the connector is removed. During disassembly, all bolts 209 are simply removed from the embedded sleeve 210, facilitating future use and adjustment. This method is independent of whether the structure has a floor slab, and especially allows for connections in areas with low bending moments within the column, significantly improving the reliability of structural connections. For high-rise industrial plants, precast columns can be flexibly segmented, reducing the self-weight of individual components, offering advantages in tower crane selection and precast component transportation.

[0024] Example 2, as Figure 1 and Figure 4 As shown, each bolt 209 is fitted with an anti-loss component 3. The anti-loss component 3 includes a limiting sleeve 301. A limiting block 302 is provided inside the limiting sleeve 301. The limiting block 302 and the bolt 209 are fixedly connected. The outer surface of the limiting block 302 is in contact with the inner wall of the limiting sleeve 301.

[0025] The effect achieved by embodiment 2 is that when rotating the bolt 209, the limiting block 302 on the surface can cooperate with the limiting sleeve 301 to play a limiting role, avoiding the problem of easy loss after disassembling the bolt 209.

[0026] Working principle: When it is necessary to support and fix the upper precast column body 1 and the lower precast column body 4, the distance between the upper fixing plate 203 and the lower fixing plate 204 can be adjusted according to the height of the upper precast column body 1 and the lower precast column body 4. The bolts 209 are fixed by the internal embedded sleeve 210. It can be applied to the support of various precast columns, which is flexible and improves the overall applicability. When rotating the bolts 209, the limiting block 302 on the surface can cooperate with the limiting sleeve 301 to play a limiting role, avoiding the problem of easy loss after disassembling the bolts 209.

[0027] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A reusable, unsupported precast concrete column, comprising an upper precast column body (1), characterized in that: The bottom of the upper precast column body (1) is provided with a support adjustment component (2), and the upper precast column body (1) and the support adjustment component (2) are provided on one side. The support adjustment assembly (2) includes a bidirectional screw (201), a throttle (202) is connected to the top of the bidirectional screw (201), an upper fixing plate (203) and a lower fixing plate (204) are provided on the surface of the bidirectional screw (201), threaded holes (205) are opened in the interior of the upper fixing plate (203) and the lower fixing plate (204), a support frame (206) is connected to the surface of the upper fixing plate (203) and the lower fixing plate (204), slots (207) are opened at the front and rear ends of the lower fixing plate (204), a sliding rod (208) is provided in the interior of the slot (207), bolts (209) are connected to the surface of the upper fixing plate (203) and the lower fixing plate (204), and embedded sleeves (210) are provided on both sides of the upper precast column body (1) and the support adjustment assembly (2).

2. A reusable, unsupported precast concrete column according to claim 1, characterized in that: The bidirectional screw (201) is threadedly connected to both the upper fixing plate (203) and the lower fixing plate (204) through the threaded hole (205).

3. A reusable, support-free precast concrete column according to claim 2, characterized in that: The slide bar (208) is inverted T-shaped, and the position and size of the slide bar (208) match the position and size of the slot (207).

4. A reusable, unsupported precast concrete column according to claim 3, characterized in that: The inner wall of the slot (207) is in contact with the outer surface of the slide rod (208), and the slide rod (208) and the slot (207) form a sliding connection.

5. A reusable, unsupported precast concrete column according to claim 1, characterized in that: Each set of bolts (209) is fitted with an anti-loss component (3), the anti-loss component (3) includes a limiting sleeve (301), and a limiting block (302) is provided inside the limiting sleeve (301).

6. A reusable, unsupported precast concrete column according to claim 5, characterized in that: The limiting block (302) and the bolt (209) form a fixed connection, and the outer surface of the limiting block (302) is in contact with the inner wall of the limiting sleeve (301).

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