Quick mounting and positioning tool for prefabricated stand column
By using the guiding design of positioning and auxiliary components, the problem of swaying caused by friction during the hoisting of precast columns was solved, achieving stable installation and efficient construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-07
AI Technical Summary
In urban rail transit projects, precast columns are prone to swaying due to friction during hoisting, which affects the stability of the installation.
The system employs a combination of positioning and auxiliary components for guidance, with rollers guiding the column in four directions to reduce friction. An adjustment component is used to fine-tune the roller position to improve adaptability.
This method enables stable hoisting of the columns, preventing swaying and improving construction efficiency and safety.
Smart Images

Figure CN224093010U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of column positioning technology, specifically a prefabricated column quick installation and positioning tool. Background Technology
[0002] In urban rail transit projects, the foundations of the column-type inspection tunnel bed columns and their connecting structures in depots and parking garages are mostly made of cast-in-place concrete. To improve construction efficiency, existing technologies often use precast columns, which reduces the time required for on-site concrete pouring. During the installation of precast columns, grooves for column installation are formed by intersecting steel pipes, which are then connected using right-angle couplers. After the steel pipe frame is installed, the columns are hoisted into the pre-reserved square positions on the steel pipes. However, during the hoisting and lowering process, the columns may come into contact with the steel pipes. Due to the friction between the steel pipes and the columns, the columns may wobble, affecting the stability of the column hoisting and installation. Utility Model Content
[0003] Therefore, the purpose of this utility model is to provide a quick installation and positioning fixture for prefabricated columns. Through the cooperation of the positioning components and auxiliary components, the fixture guides the steel pipe in four directions during use, reduces the friction caused by the column touching the side wall of the steel pipe, and guides the column smoothly to the ground, avoiding the problem of increased swaying during hoisting caused by the column being touched.
[0004] To solve the above-mentioned technical problems, according to one aspect of this utility model, the present utility model provides the following technical solution: a prefabricated column quick installation and positioning fixture, comprising:
[0005] The positioning component includes a first supporting steel pipe, a second supporting steel pipe opposite to the first supporting steel pipe, a third supporting steel pipe and a fourth supporting steel pipe disposed on the bottom surface of the first supporting steel pipe;
[0006] The auxiliary component includes a first arc-shaped outer cover at the position of the first supporting steel pipe, a second arc-shaped outer cover disposed on the bottom surface of the first arc-shaped outer cover, a notch or groove formed on the top surface of the second arc-shaped outer cover, a rotating shaft disposed in the notch or groove, a connecting plate connecting the rotating shaft to the first arc-shaped outer cover, a first flat plate fixed to the first arc-shaped outer cover, a second flat plate fixed to the second arc-shaped outer cover, a U-shaped mounting rod fixed to the outer wall of the second arc-shaped outer cover, a cylinder disposed between the U-shaped mounting rods, and a roller fitted with the cylinder.
[0007] In a preferred embodiment of the prefabricated column quick installation and positioning fixture described in this utility model, the roller rotates along the outer wall of the column and the roller is in contact with the outer wall of the column to be installed.
[0008] In a preferred embodiment of the prefabricated column quick installation and positioning fixture described in this utility model, the first and second supporting steel pipes are connected to the third and fourth supporting steel pipes by a locking mechanism.
[0009] As a preferred embodiment of the prefabricated column quick installation and positioning fixture described in this utility model, it further includes an adjustment component, which includes a square frame that fits with the U-shaped installation rod and a threaded hole opened on the surface of the square frame.
[0010] As a preferred embodiment of the prefabricated column quick installation and positioning fixture described in this utility model, the adjustment component further includes a threaded rod disposed at the position of the square frame;
[0011] The threaded rod is connected to the threaded hole, and the threaded rod abuts the square frame.
[0012] As a preferred embodiment of the prefabricated column quick installation and positioning fixture described in this utility model, the square frame, threaded hole and threaded rod are symmetrically arranged at the center line position of the U-shaped installation rod.
[0013] As a preferred embodiment of the prefabricated column quick installation and positioning fixture described in this utility model, the first plate and the second plate are fitted together, and the first plate and the second plate are locked together by bolts.
[0014] Compared with the prior art, the advantages of this utility model are:
[0015] 1. By cooperating with the positioning components and auxiliary components, the steel pipe is guided in four directions during use, reducing the friction caused by the column touching the side wall of the steel pipe, and smoothly guiding the column to the ground, thus avoiding the problem of increased swaying during hoisting caused by the column being touched.
[0016] Second, the position of the rollers can be freely adjusted by the set adjustment components. This allows for fine-tuning of the roller position according to the actual hoisting situation, thereby improving the adaptability of the auxiliary components. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0018] Figure 1 This is a structural diagram of the present invention;
[0019] Figure 2 This is a first-view structural diagram of the auxiliary component of this utility model;
[0020] Figure 3 This is a second-view structural diagram of the auxiliary component of this utility model.
[0021] In the diagram: 11. First supporting steel pipe; 12. Second supporting steel pipe; 13. Third supporting steel pipe; 14. Fourth supporting steel pipe; 21. First arc-shaped outer cover; 22. Second arc-shaped outer cover; 23. Notch; 24. Rotating shaft; 25. Connecting plate; 26. First flat plate; 27. Second flat plate; 28. U-shaped mounting rod; 29. Cylinder; 210. Roller; 31. Square frame; 32. Threaded hole; 33. Threaded rod. Detailed Implementation
[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0023] 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. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0026] This utility model provides a quick installation and positioning fixture for prefabricated columns. Through the cooperation of the positioning components and auxiliary components, the fixture guides the steel pipe in four directions during use, reduces the friction caused by the column touching the side wall of the steel pipe, and smoothly guides the column to the ground, avoiding the problem of increased swaying during hoisting caused by the column being touched.
[0027] Figure 1 , Figure 2 , Figure 3 The diagram shown is an overall structural schematic of one embodiment of a prefabricated column quick installation and positioning fixture according to this utility model. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 The main structure of this embodiment includes: a positioning component and an auxiliary component.
[0028] The positioning component is used in conjunction with the auxiliary component. Specifically, the positioning component includes a first support steel pipe 11, a second support steel pipe 12 opposite to the first support steel pipe 11, a third support steel pipe 13 and a fourth support steel pipe 14 disposed on the bottom surface of the first support steel pipe 11.
[0029] In practical use, the first support steel pipe 11 and the second support steel pipe 12 are placed side by side, and the third support steel pipe 13 and the fourth support steel pipe 14 are attached to the bottom surface of the first support steel pipe 11 and the second support steel pipe 12, and locked by right-angle fasteners for scaffolding locking in the prior art. After locking, the auxiliary components are installed and used based on the positioning components.
[0030] The auxiliary components are used to improve the stability of the column hoisting. Specifically, the auxiliary components include a first arc-shaped outer cover 21 at the position of the first support steel pipe 11, a second arc-shaped outer cover 22 set on the bottom surface of the first arc-shaped outer cover 21, a notch 23 opened on the top surface of the second arc-shaped outer cover 22, a rotating shaft 24 set in the notch 23, a connecting plate 25 connecting the rotating shaft 24 to the first arc-shaped outer cover 21, a first flat plate 26 fixed to the first arc-shaped outer cover 21, a second flat plate 27 fixed to the second arc-shaped outer cover 22, a U-shaped mounting rod 28 fixed to the outer wall of the second arc-shaped outer cover 22, a cylinder 29 set between the U-shaped mounting rods 28, and a roller 210 fitted with the cylinder 29.
[0031] In practical use, the second arc-shaped outer cover 22 fits into the first supporting steel pipe 11, and the user moves the first arc-shaped outer cover 21. The first arc-shaped outer cover 21 rotates through the pivot 24 until the first plate 26 and the second plate 27 are in contact with each other. Then, bolts are used to lock them in place. The same auxiliary components are installed on the second supporting steel pipe 12, the third supporting steel pipe 13, and the fourth supporting steel pipe 14 using the same fixing installation method. In this way, when the hoisting column is placed into the square reserved position of the steel pipe, if the column touches the side wall of the steel pipe, the roller 210 will also rotate because the column is moving downwards. This guides the column downwards, avoiding the problem of the column shaking and being aggravated by collision, thus improving the stability of the column hoisting.
[0032] Furthermore, it also includes an adjustment assembly, which includes a square frame 31 that fits with the U-shaped mounting rod 28 and a threaded hole 32 formed on the surface of the square frame 31; the adjustment assembly also includes a threaded rod 33 disposed at the position of the square frame 31; wherein the threaded rod 33 is connected to the threaded hole 32, and the threaded rod 33 abuts the square frame 31.
[0033] In actual use, the user loosens the threaded rod 33 and then pushes the square frame 31. At this time, the square frame 31 can move along the rod of the U-shaped mounting rod 28. When it moves to the desired position, the user rotates the threaded rod 33 to lock and position it. This changes the position of the roller 210 to meet the user's needs.
[0034] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A quick-installation positioning fixture for prefabricated columns, characterized in that, include: The positioning component includes a first supporting steel pipe (11), a second supporting steel pipe (12) opposite to the first supporting steel pipe (11), a third supporting steel pipe (13) and a fourth supporting steel pipe (14) disposed on the bottom surface of the first supporting steel pipe (11); The auxiliary components include a first arc-shaped outer cover (21) at the position of the first supporting steel pipe (11), a second arc-shaped outer cover (22) disposed on the bottom surface of the first arc-shaped outer cover (21), a notch (23) opened on the top surface of the second arc-shaped outer cover (22), a rotating shaft (24) disposed in the notch (23), a connecting plate (25) connecting the rotating shaft (24) to the first arc-shaped outer cover (21), a first flat plate (26) fixed to the first arc-shaped outer cover (21), a second flat plate (27) fixed to the second arc-shaped outer cover (22), a U-shaped mounting rod (28) fixed to the outer wall of the second arc-shaped outer cover (22), a cylinder (29) disposed between the U-shaped mounting rods (28), and a roller (210) fitted with the cylinder (29).
2. The prefabricated column quick installation and positioning fixture according to claim 1, characterized in that, The roller (210) rotates along the outer wall of the cylinder (29) and the roller (210) fits against the outer wall of the column to be installed.
3. The prefabricated column quick installation and positioning fixture according to claim 2, characterized in that, The first support steel pipe (11) and the second support steel pipe (12) are connected to the third support steel pipe (13) and the fourth support steel pipe (14) by a locking mechanism.
4. The prefabricated column quick installation and positioning fixture according to claim 3, characterized in that, It also includes an adjustment assembly, which includes a square frame (31) that fits into the U-shaped mounting rod (28) and a threaded hole (32) on the surface of the square frame (31).
5. The prefabricated column quick installation and positioning fixture according to claim 4, characterized in that, The adjustment assembly also includes a threaded rod (33) disposed at the position of the square frame (31); The threaded rod (33) is connected to the threaded hole (32), and the threaded rod (33) abuts against the square frame (31).
6. The prefabricated column quick installation and positioning fixture according to claim 5, characterized in that: The square frame (31), threaded hole (32) and threaded rod (33) are symmetrically arranged at the center line position of the U-shaped mounting rod (28).
7. The prefabricated column quick installation and positioning fixture according to claim 6, characterized in that: The first plate (26) and the second plate (27) are fitted together, and the first plate (26) and the second plate (27) are locked together by bolts.