Device for quick butt joint of prefabricated columns

By using a device consisting of a shell, positioning components, and fasteners during the precast column docking process, the problem of inaccurate docking of precast columns was solved, enabling rapid and precise docking and improving the safety of the building structure.

CN121473582APending Publication Date: 2026-02-06CHINA CONSTR EIGHT ENG DIV CORP LTD
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Patent Information

Application Number
CN202511653911.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-12
Publication Date
2026-02-06

AI Technical Summary

Technical Problem

The existing precast column connection process cannot guarantee accuracy, which affects the overall safety of the building structure.

Method used

A device comprising a housing, positioning components, and fasteners is employed. By setting multiple grooves and guide ramps on the housing, the positioning components and fasteners enable rapid docking and fixing of precast columns, ensuring docking accuracy.

Benefits of technology

This improved the accuracy of precast column connection, avoided deviations, and enhanced the safety of the building structure.

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Abstract

The invention relates to the technical field of building construction, in particular to a device for quick butt joint of prefabricated columns, which is used for butt joint of a to-be-butt-jointed prefabricated column on an embedded and fixed prefabricated column and comprises a shell capable of being arranged at the bottom of the to-be-butt-jointed prefabricated column in a sleeving manner. A plurality of sliding grooves are formed in the inner wall face of the shell, at least one sliding groove is formed in each inner wall face of the shell, the positioning pieces are arranged in the corresponding sliding grooves in the shell in a clamped mode, and guide slopes are arranged at the bottoms of the positioning pieces. The positioning piece can be quickly and accurately aligned to the dead center of the shell, so that the end parts of the upper and lower prefabricated columns can be quickly butted, the butting accuracy is effectively improved, the positioning piece can quickly slide into the shell by utilizing the sliding groove in the shell, and the shell cannot deviate in the sliding-in process.
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Description

Technical Field

[0001] This invention relates to the field of building construction, and specifically to a device for the rapid connection of precast columns. Background Technology

[0002] In the modern construction industry, precast columns serve as a crucial structure in prefabricated assembled buildings, offering numerous advantages such as controllable quality and environmental friendliness. However, current methods for connecting precast columns typically rely on manual positioning and adjustment. This approach cannot guarantee the precision of the connection, leading to deviations that can compromise the overall structural safety of the building. Therefore, measures are needed to address the issue of inaccurate precast column connection, which negatively impacts the overall structural safety of the building. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for rapid connection of precast columns, thereby solving the problem that the existing technology cannot guarantee the accuracy of precast column connection, which affects the overall safety of the building structure.

[0004] The technical solution to achieve the above objective is: a device for rapid connection of precast columns, used to connect the precast column to be connected to an already embedded precast column, the device comprising: The housing can be fitted onto the bottom of the precast column to be docked. The inner wall surface of the housing is provided with multiple sliding grooves, and each inner wall surface of the housing is provided with at least one sliding groove. A positioning component is fitted into a corresponding groove on the housing. The bottom of the positioning component is provided with a guide slope. The guide slope contacts the embedded precast column. The guide slope on the positioning component pushes the joint between the precast column to be connected and the embedded precast column, so that the edges of the joint between the precast column to be connected and the embedded precast column are parallel to each other. A fastener connected to one end of the positioning member near the inner wall of the housing is used to fix the position of the positioning member by rotating the fastener toward the precast column to be docked, thereby positioning the housing on the precast column to be docked.

[0005] A further improvement of the technical solution of the present invention is that: the guide slopes all extend upward from the direction of the outer wall surface of the housing towards the inner wall surface of the housing.

[0006] A further improvement of the technical solution of the present invention is that the positioning element is U-shaped.

[0007] A further improvement of the technical solution of the present invention is that: the end of the positioning member near the outer wall of the housing is higher than the end of the positioning member near the inner wall of the housing.

[0008] A further improvement of the technical solution of the present invention is that: a screw hole is provided on one end of the positioning member near the inner wall of the housing.

[0009] A further improvement of the technical solution of the present invention is that the two adjacent positioning elements are arranged in parallel.

[0010] A further improvement of the technical solution of the present invention is that the positioning elements are arranged at intervals.

[0011] A further improvement of the technical solution of the present invention is that the fastener is a snap-fit, and by rotating the snap-fit, its end moves closer to and abuts against the precast column.

[0012] A further improvement of the technical solution of the present invention is that the buckle gradually expands from top to bottom.

[0013] By utilizing the above technical solution, the technical effects achieved by the present invention compared to the prior art are as follows: This invention provides a device for quick docking of precast columns. By setting multiple positioning elements on the housing, the device can quickly and accurately align with the center of the housing when docking with the precast column, thereby enabling the ends of the upper and lower precast columns to dock quickly and effectively improve the docking accuracy. The positioning elements can be quickly slid into the housing using the sliding groove on the housing, and the housing will not shift during the sliding process.

[0014] By rotating the buckle on the positioning component, the position of the housing on the precast column is confirmed and then pressed against the precast column, so that the housing can be fixed on the precast column and the housing can be prevented from sliding down on the precast column. Attached Figure Description

[0015] Figure 1 This is a perspective view of a device for rapid connection of precast columns according to the present invention.

[0016] Figure 2 This is a perspective view of a positioning component of a device for rapid docking of precast columns according to the present invention.

[0017] Figure 3 This is a perspective view of the housing of a device for rapid docking of precast columns according to the present invention.

[0018] In the diagram: 1. Housing; 2. Slide groove; 3. Positioning element; 4. Buckle. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] This invention provides a device for rapid connection of precast columns. This device, by providing positioning elements on the housing, secures the housing after it is fitted onto the precast column, preventing the housing from slipping off. The device for rapid connection of precast columns is described below.

[0021] See Figure 1 This image shows a perspective view of a device for rapid connection of precast columns according to the present invention. The following is in conjunction with... Figures 1 to 3 The structure of the device for rapid connection of precast columns according to the present invention will be described.

[0022] See Figure 1 This invention provides a device for rapid docking of precast columns, used to dock a precast column to be docked onto an embedded precast column. The device includes: a housing 1, a positioning member 3, and fasteners. The housing 1 can be fitted onto the bottom of the precast column to be docked. The inner wall surface of the housing 1 is provided with multiple sliding grooves 2, and each inner wall surface of the housing 1 is provided with at least one sliding groove 2. The positioning member 3 is engaged in the corresponding sliding groove 2 on the housing 1. The bottom of the positioning member 3 is provided with a guide slope, which contacts the embedded precast column. The guide slope on the positioning member 3 pushes the docking point between the precast column to be docked and the embedded precast column, making the edges of the docking point of the precast column to be docked and the embedded precast column parallel to each other. The fasteners are connected to one end of the positioning member 3 near the inner wall surface of the housing 1. By rotating the fasteners toward the precast column to be docked, the fasteners abut against the precast column to be docked, thereby fixing the position of the positioning member 3, and thus positioning the housing 1 on the precast column to be docked.

[0023] Better, such as Figure 1 As shown, a groove is set at the top of the precast column and a protrusion adapted to the groove is set at the bottom. During the docking process, the bottom protrusion is engaged with the top groove for initial positioning. The housing 1 is fitted onto the precast column to be docked and moved to the bottom of the precast column. Then, the positioning member 3 is lifted from the bottom of the housing 1 along the slide groove 2, so that the positioning member 3 can be engaged with the housing 1 according to the position of the precast column to be docked. Multiple positioning members 3 can be quickly inserted into the housing 1. The height and horizontal position of the precast column can be adjusted by the slide groove 2 set in the housing 1. Fasteners are set on the positioning member 3. After the housing 1 and the positioning member 3 are fitted onto the precast column, the angle is adjusted by rotating the fasteners, thereby fixing the positioning member 3 on the precast column.

[0024] Furthermore, after the housing 1 and the positioning component 3 are fitted onto the precast column, if there is a positional deviation, the position of the housing 1 on the precast column can be adjusted by the sliding groove 2. After reaching the designed position, the housing 1 can be repositioned and fixed using fasteners. After the housing 1 is fixed, it can protect the joint of the precast column.

[0025] See Figure 1 In one specific embodiment of the present invention, the guide slopes all extend upward from the direction of the outer wall surface of the housing 1 toward the direction of the inner wall surface of the housing 1.

[0026] Furthermore, such as Figure 1 As shown, the guide slope inclined towards the inner wall of the housing 1 can guide the end of the precast column, so that when the housing 1 and the positioning part 3 are fitted onto the precast column, the precast column can be directly aligned with the inside of the housing 1, avoiding the situation of the housing 1 being offset during the fitting process onto the precast column, and effectively improving the accuracy of the docking.

[0027] Furthermore, the width of the U-shaped groove in the positioning component 3 is equal to the thickness from the outer wall of the housing 1 to the inner wall of the slide groove 2, so that the groove of the positioning component 3 can fully engage with the housing 1 and there will be no jamming during the sliding process, making the connection more convenient. In addition, setting the distance between the columns to be consistent with the thickness can make the connection between the positioning component 3 and the housing 1 tighter and less prone to loosening.

[0028] See Figure 1 In one specific embodiment of the present invention, the positioning member 3 is arranged in a U-shape, the end of the positioning member 3 near the outer wall of the housing 1 is higher than the end of the positioning member 3 near the inner wall of the housing 1, and a screw hole is provided on the end of the positioning member 3 near the inner wall of the housing 1. Two adjacent positioning members 3 are arranged in parallel.

[0029] Furthermore, after the precast columns are confirmed to be connected, high-strength bolts are passed through the screw holes on the positioning parts 3, and then nuts are used to fix the bolts. At the same time, elastic washers and gaskets are added at the bolt connection. The elastic washers can absorb vibration and deformation to a certain extent and ensure the reliability of the connection. The gaskets can increase the contact area and prevent the bolts from loosening, thereby increasing the bolt tightening effect. By using bolts to connect two adjacent positioning parts 3 together, a lifting rope can be used to tie it to the bolt. The positioning parts 3 can be dragged upward by the lifting rope, thereby driving the housing 1 to move. Before dragging the positioning parts 3, the fasteners that are pressing against the precast columns need to be loosened to cancel the fixing effect of the fasteners on the housing 1 and the positioning parts 3.

[0030] See Figure 1 In one specific embodiment of the present invention, the positioning elements are arranged at intervals.

[0031] See Figure 1 , Figure 2 In one specific embodiment of the present invention, the fastener is a buckle 4. By rotating the buckle 4, its end moves closer to and abuts against the precast column, and the buckle 4 gradually expands from top to bottom.

[0032] Furthermore, such as Figure 1As shown, after the position of the precast column is confirmed, the buckle 4 is rotated to the surface of the precast column and used to hold the precast column in place, so that the housing 1 is fixed after the precast column is confirmed to prevent the housing 1 from sliding down on the precast column. The buckle 4 is divided into two parts: the lower part can be connected to the positioning part 3, and the upper part can be adjusted in angle. After the bottom of the buckle 4 is fixed to the positioning part 3, the buckle 4 can be locked by rotating it in the direction of the precast column, and unlocked by rotating it away from the precast column.

[0033] like Figures 1 to 3 As shown, the following describes the usage process of a device for rapid connection of precast columns according to the present invention.

[0034] First, the protrusion at the bottom of the precast column to be connected is engaged with the groove at the top of the embedded precast column for initial positioning. Then, the housing is fitted onto the precast column to be connected. Next, the positioning component is lifted upwards from the bottom of the housing along the sliding groove, allowing it to engage with the housing according to the position of the precast column to be connected. The housing then falls and moves to the connection point between the precast column and the embedded precast column. Once the housing is in position with the precast column, the buckle is rotated to tilt it towards the precast column, thus securing the housing to the column. During the descent, the tilting mechanism... The guide ramp abuts against the precast column, pushing the precast column joint to align the precast column with the center of the shell, preventing misalignment during the jointing process. This ensures that the joints of the upper and lower precast columns are aligned. After the upper and lower precast columns are aligned, high-strength bolts are passed through the screw holes on the two adjacent positioning parts, and nuts are used to connect the two ends of the bolts. Then, a lifting rope is tied to the bolt, and the fasteners are loosened to remove the fasteners from fixing the shell and positioning parts. Finally, the shell is lifted by lifting equipment with the lifting rope and removed from the precast column.

[0035] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A device for rapid connection of precast columns, used to connect a precast column to be connected to an already embedded precast column, characterized in that: The device includes: The housing can be fitted onto the bottom of the precast column to be docked. The inner wall surface of the housing is provided with multiple sliding grooves, and each inner wall surface of the housing is provided with at least one sliding groove. A positioning component is fitted into a corresponding groove on the housing. The bottom of the positioning component is provided with a guide slope. The guide slope contacts the embedded precast column. The guide slope on the positioning component pushes the joint between the precast column to be connected and the embedded precast column, so that the edges of the joint between the precast column to be connected and the embedded precast column are parallel to each other. A fastener connected to one end of the positioning member near the inner wall of the housing is used to fix the position of the positioning member by rotating the fastener toward the precast column to be docked, thereby positioning the housing on the precast column to be docked.

2. The device for rapid connection of precast columns according to claim 1, characterized in that: The guide ramps all extend upwards from the direction of the outer wall of the housing towards the direction of the inner wall of the housing.

3. The device for rapid connection of precast columns according to claim 1, characterized in that: The positioning element is U-shaped.

4. The device for rapid connection of precast columns according to claim 3, characterized in that: The end of the positioning member near the outer wall of the housing is higher than the end of the positioning member near the inner wall of the housing.

5. The device for rapid connection of precast columns according to claim 4, characterized in that: The positioning element has a screw hole at one end near the inner wall of the housing.

6. The device for rapid connection of precast columns according to claim 1, characterized in that: The two adjacent positioning components are arranged in parallel.

7. The device for rapid connection of precast columns according to claim 1, characterized in that: The positioning elements are spaced apart.

8. The device for rapid connection of precast columns according to claim 1, characterized in that: The fastener is a snap-fit, which is rotated to bring its end closer to and against the precast column.

9. The device for rapid connection of precast columns according to claim 8, characterized in that: The buckle gradually widens from top to bottom.