A prefabricated column spacing and verticality integrated control device

Abstract

The utility model relates to the technical field of building construction, in order to solve the problem that the single verticality correction mode, the small operable space and the problem that need to exert the greater correction force in the installation of the existing prefabricated column, a prefabricated column spacing and verticality integrated control device is provided, including the positioning frame, and the upper and lower side inner wall is provided with the mounting block, the calibration mechanism is symmetrically set up in the inner circumferential side of positioning frame, is used for from the vertical multidirectional correction force to correct the verticality of prefabricated column, the support mechanism is symmetrically set up in the outer circumferential side of positioning frame, is used for the stable support of positioning frame, the utility model discloses can cover the multidirectional correction of upper area in column, simultaneously integrated spacing measurement function, and compact structure, the flexible adjustment is suitable for different specifications column, reduces the operation space limit and the correction degree.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to an integrated control device for the spacing and verticality of prefabricated columns. Background Technology

[0002] Precast columns are core load-bearing components for infrastructure such as municipal bridges and urban elevated roads. Manufactured in factories, they offer advantages such as high strength, rapid construction, and controllable quality, and are widely used in modern municipal engineering projects. Among the installation accuracy parameters, verticality and the spacing between adjacent columns are key indicators. Excessive verticality deviation can lead to uneven stress on the columns and difficulties in connecting subsequent components, while excessive spacing deviation can cause misalignment of crossbeams and imbalance of the upper load, both affecting the safety and lifespan of the project.

[0003] Application No. 202121049020.X discloses a device for precisely adjusting the verticality of precast columns, including a base, on which a precast column is mounted. Two calibration mechanisms are disposed on the exterior of the base. The base includes a concrete base with an installation groove on its top. Multiple embedded steel bars are arranged on the inner bottom wall of the installation groove. A casting template is fixedly installed on the exterior of the installation groove and on top of the concrete base. Each calibration mechanism includes a right-angled folding plate, with hydraulic rods installed on the outer walls of its two mutually perpendicular faces. The above solution uses two calibration mechanisms, with two hydraulic rods located on two mutually perpendicular surfaces of the right-angled plate to move the push plate. The four push plates clamp and position the precast column, ensuring precise adjustment of the column's verticality. However, the calibration mechanism only acts on the bottom area of ​​the column and does not cover the upper and middle parts. For columns with a height of more than 3m, the concentration of correction force at the bottom can easily lead to tilting deviations in the upper and middle parts of the column. In addition, there are problems such as limited operating space for bottom calibration and the need to apply a large correction force. Utility Model Content

[0004] To address the aforementioned problems, this utility model aims to provide an integrated control device for prefabricated column spacing and verticality, which can cover the upper and middle areas of the column to achieve multi-directional correction. It also integrates spacing measurement function, has a compact structure, is flexible in adjustment, adapts to columns of different specifications, reduces operating space limitations and correction force, and solves the pain points of traditional devices.

[0005] The main idea of ​​the technical solution adopted in this utility model is as follows: This solution uses a positioning frame as the basic carrier, and through multiple sets of calibration mechanisms symmetrically arranged around its periphery, it covers the entire area of ​​the prefabricated column. It uses bidirectional screws to drive the calibration components to apply force from multiple directions around the periphery, thus solving the accuracy defects of single-point calibration at the bottom. A rangefinder is integrated into the positioning frame to realize the simultaneous operation of real-time spacing detection and verticality calibration. With the addition of a telescopic support mechanism, it can adapt to columns of different specifications, reduce the limitation of operating space, and reduce the calibration force.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A prefabricated column spacing and verticality integrated control device includes: The positioning frame has mounting blocks on its upper and lower circumferential inner walls; The calibration mechanism is symmetrically arranged on the inner periphery of the positioning frame and is used to apply correction force from the periphery of the column in multiple directions to correct the verticality of the prefabricated column. The support mechanism is symmetrically arranged on the outer periphery of the positioning frame to provide stable support for the positioning frame.

[0007] Furthermore, using the above technical solution, a rangefinder is installed on both sides of the lower part of the positioning frame.

[0008] Furthermore, based on the above technical solutions, the calibration mechanism includes: A two-way screw, with its upper and lower sides rotatably connected to the mounting block respectively; The power component is connected below the bidirectional screw; Two sets of correction components are threadedly connected to the threaded sections at both ends of the bidirectional screw.

[0009] Furthermore, based on the above technical solutions, the correction component further includes: The movable seat is threadedly connected to the bidirectional screw. The correction plate is located on the side of the movable base facing the precast column; The first telescopic rod is connected at one end to the movable base and at the other end to the calibration plate; The second telescopic rod is symmetrically arranged on both sides of the first telescopic rod, and its two ends are connected to the moving seat and the correction plate, respectively.

[0010] Furthermore, based on the above technical solutions, the supporting mechanism includes: A support plate is located on the outer periphery of the positioning frame; The diagonal brace is hinged at one end to the support plate and at the other end to the ground.

[0011] The beneficial effects of this utility model are: 1. This utility model covers the entire precast column by setting multiple sets of calibration mechanisms on the inner periphery of the positioning frame and adopting a correction mode from the middle node to both sides, applying force from multiple directions in the periphery. The correction operation space is large and the correction is more labor-saving. It avoids the tilt deviation of the middle and upper part of the traditional bottom single-point correction, and can straighten in advance when the precast column falls into the range of the bottom precast steel bars to ensure verticality.

[0012] 2. The positioning frame of this utility model integrates a distance measuring instrument at the bottom, which can simultaneously realize real-time detection of column spacing and verticality correction. No additional tools are required, eliminating repeated verification and adjustment steps, greatly shortening the installation time of a single column and improving the overall construction efficiency.

[0013] 3. This utility model can adapt to prefabricated columns of different heights and cross-sectional dimensions. The overall structure of the device is simple and the support is stable. It does not require close-range operation by personnel and can be controlled remotely, thus ensuring high safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Top view diagram; Figure 3 This is a schematic diagram of the positioning frame structure of this utility model; Figure 4 This is a schematic diagram of a single calibration mechanism of this utility model; Figure 5 This is a schematic diagram of the correction component structure of this utility model; Figure 6 This is a schematic diagram of the correction component of this utility model from another perspective.

[0015] The components include: 1. Positioning frame; 11. Mounting block; 12. Rangefinder; 2. Calibration mechanism; 21. Bidirectional screw; 22. Power component; 3. Calibration assembly; 31. Moving seat; 311. Threaded sleeve; 32. Calibration plate; 321. Anti-slip protrusion; 33. First telescopic rod; 34. Second telescopic rod; 4. Support mechanism; 41. Support plate; 42. Diagonal brace. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] The inventors discovered that traditional verticality adjustment devices use two calibration mechanisms. Two hydraulic rods located on two mutually perpendicular surfaces of a right-angled folding plate move the push plate, and four push plates clamp and position the precast column to ensure precise verticality adjustment. However, the calibration mechanism only acts on the bottom area of ​​the column and does not cover the upper and middle parts. For columns with a height of more than 3m, the correction force is concentrated at the bottom, which can cause tilting deviation in the upper and middle parts of the column. In addition, there are problems such as small operating space for bottom calibration and the need to apply a large correction force.

[0018] Based on the above findings, this application proposes an integrated control device for the spacing and verticality of prefabricated columns. Using a positioning frame as the basic carrier, multiple sets of calibration mechanisms symmetrically arranged around its periphery cover the entire area of ​​the prefabricated column. A bidirectional screw drives the calibration components to apply force from multiple circumferential directions, solving the accuracy defects of single-point bottom calibration. A rangefinder is integrated into the positioning frame to achieve simultaneous real-time spacing detection and verticality calibration. Combined with a retractable support mechanism, it adapts to columns of different specifications, reducing operational space limitations and lowering the calibration effort. Example

[0019] See Figure 1-6 This application discloses an integrated control device for the spacing and verticality of prefabricated columns, which can realize the simultaneous operation of spacing measurement and verticality correction of prefabricated columns, thereby improving installation quality and efficiency. The device includes a positioning frame 1, a calibration mechanism 2, and a support mechanism 4.

[0020] The positioning frame 1 is a rectangular frame structure made of high-strength aluminum alloy profiles. Mounting blocks 11 are welded to the upper and lower inner sides of the frame. The mounting blocks 11 are symmetrically distributed. A bearing hole is opened in the center of the mounting block 11 for mounting the calibration mechanism 2.

[0021] Two rangefinders 12 are fixedly installed on both sides of the lower part of the positioning frame 1 with bolts. The rangefinders are laser range sensors LRF-01. The measuring direction of the rangefinders 12 is horizontally pointed to the adjacent precast columns. They can output the distance data between the two columns in real time. The data is transmitted to the control console display screen through a wireless module, which makes it convenient for operators to monitor the spacing parameters in real time.

[0022] Next, the calibration mechanism 2 comprises four sets, symmetrically arranged on the inner circumference of the positioning frame 1, corresponding to the four sides of the prefabricated column, respectively. These mechanisms apply corrective forces from multiple directions around the column to correct its verticality. Specifically, the four sets of calibration mechanisms 2 are distributed at 90° intervals along the inner circumference of the positioning frame 1. Two sets are symmetrically arranged along the length of the positioning frame to correct verticality deviations in the length direction, and the other two sets are symmetrically arranged along the width direction to correct verticality deviations in the width direction. Through the coordinated action of the four circumferential sides, simultaneous detection and correction of the verticality of the prefabricated column in both the X and Y axes can be achieved, avoiding column sway caused by single-sided correction and ensuring calibration accuracy.

[0023] Each calibration mechanism 2 includes a bidirectional screw 21, a power component 22, and a calibration assembly 3.

[0024] The bidirectional screw 21 has a shaft in the middle section and threads with opposite directions at its upper and lower ends. The upper and lower ends of the bidirectional screw 21 are rotatably connected to the bearing holes of the mounting block 11 through deep groove ball bearings to achieve axial positioning and circumferential rotation.

[0025] The power component 22 is a servo motor (model: 110STM-06030). Its output end is connected to the lower end of the bidirectional screw 21 through a coupling. The motor is fixed on the ground and can drive the bidirectional screw 21 to rotate in both directions. The motor speed and direction can be controlled by a motor controller (such as a remote control).

[0026] The correction component 3 includes two sets, which are threadedly connected to the threaded sections at both ends of the bidirectional screw 21. They can move synchronously in opposite directions as the bidirectional screw 21 rotates, that is, move closer or further away at the same time. Each set of correction components 3 includes a moving seat 31, a correction plate 32, a first telescopic rod 33, and a second telescopic rod 34.

[0027] Specifically, the movable seat 31 is fixedly provided with a threaded sleeve 311 that matches the bidirectional screw 21, and the movable seat 31 is threadedly connected to the bidirectional screw 21 through the threaded sleeve 311.

[0028] The correction plate 32 is located on the side of the movable seat 31 facing the precast column. Its surface in contact with the column is integrally formed with anti-slip protrusions 321. The anti-slip protrusions 321 are distributed in a rectangular array, which can increase the friction with the column surface and prevent slippage during correction.

[0029] The first telescopic rod 33 is an electric push rod (model: DTZ300). The cylinder end is fixedly connected to the moving seat 31, and the piston rod end is fixedly connected to the center position of the correction plate 32. It is used to drive the correction plate 32 to extend and retract in a direction perpendicular to the column surface to adjust the contact pressure.

[0030] The second telescopic rod 34 consists of two sets of small guide telescopic rods, symmetrically distributed on both sides of the first telescopic rod 33. Its two ends are fixedly connected to the movable seat 31 and the correction plate 32, respectively. It is set parallel to the first telescopic rod 33 to enhance the stability of the correction plate 32 and prevent it from swaying when subjected to force.

[0031] It should be noted that the four calibration mechanisms 2 of this device adopt a calibration mode from the middle node to both sides. That is, the two sets of calibration components 3 are driven by the bidirectional screw 21 to apply force synchronously from the middle of the column to the upper and lower sides, forming a multi-point clamping and calibration of the upper part of the precast column. In this mode, the calibration operation is mainly concentrated in the upper part of the column, avoiding the distribution range of the bottom precast steel bars. This not only significantly increases the operable calibration space, making it easier for operators to observe and adjust, but also allows the verticality to be straightened in advance when the precast column falls into the range of the bottom precast steel bars. This avoids the calibration delay or force limitation caused by the bottom steel bars blocking the line of sight, ensuring the final verticality accuracy of the column installation.

[0032] The support mechanism 4 consists of four groups, symmetrically arranged on the outer periphery of the positioning frame 1, for providing stable support for the positioning frame 1, including support plate 41 and diagonal brace 42.

[0033] Specifically, the support plate 41 is fixed to the frame of the positioning frame 1, symmetrically distributed vertically to form a support force point. The diagonal brace 42 is a telescopic steel pipe, with one end hinged to the support plate 41 via a pin, and the other end welded to a base with anchor holes, which is fixed to the ground by expansion bolts. By adjusting its length, the verticality and support strength of the positioning frame 1 can be adjusted. Combined with the support plate 41, the contact area with the ground is increased, ensuring that the positioning frame 1 remains stable during operation and preventing the positioning frame 1 from affecting the calibration accuracy due to shaking. Example

[0034] A municipal bridge project requires the installation of 20 precast reinforced concrete columns (600mm × 600mm cross-section, 5m height). The design requirements stipulate that the spacing deviation between adjacent columns should be ≤ ±3mm, and the verticality deviation should be ≤ 1 / 1000 (i.e., total height deviation ≤ 5mm). The integrated control device described in this application enables precise and efficient column installation. The specific steps are as follows: 1. Erection and fixing of positioning frame Lifting and positioning: Use a crane to lift the positioning frame 1 directly above the foundation pit of the column to be installed, adjust the position of the positioning frame 1 so that the center of the frame is aligned with the designed installation axis of the column, and use a level to preliminarily check the levelness of the positioning frame.

[0035] Support and fixation: Deploy the four sets of support mechanisms 4, fix the support plate 41 to the outer periphery of the positioning frame 1, stretch the diagonal brace 42 so that the base with anchor holes at the bottom is in contact with the ground, and anchor the base to the ground with expansion bolts; by finely adjusting the length of the diagonal brace 42 and cooperating with the level to check, make the verticality deviation of the positioning frame 1 ≤0.5mm / m, and finally tighten the locking bolts of the diagonal brace 42 to fix it.

[0036] 2. Precast column hoisting and spacing adjustment Column hoisting: Use a crane to lift the prefabricated column and slowly place it into the foundation pit. Initially adjust the position of the column so that the column axis is roughly aligned with the center of the positioning frame 1. Use temporary support components to fix the bottom of the column to prevent it from tilting.

[0037] Spacing Measurement and Fine-tuning: The rangefinder 12 collects the spacing data between adjacent columns and transmits it to the control panel display in real time. If the designed spacing is 3m and the actual measured data is 3004mm (deviation 4mm, exceeding the allowable range), the operator can fine-tune the column position by prying the temporary support at the bottom of the column until the distancefinder displays a spacing within the range of 2997-3003mm (deviation ≤ ±3mm), and then lock the temporary support.

[0038] 3. Correction of verticality of precast columns The four calibration mechanisms 2 are activated, and the power component 22 drives the bidirectional screw 21 to rotate in the opposite direction, causing the moving seat 31 to move the calibration plate 32. This controls the extension of the first telescopic rod 33 until the anti-slip protrusion 321 of the calibration plate 32 contacts the surface of the column. If the column tilts to the left, the first telescopic rod 33 of the left calibration component extends to apply a thrust, while the bidirectional screw finely adjusts the vertical position of the calibration plate until the overall verticality deviation is ≤5mm.

[0039] 4. After confirming that the column spacing and verticality meet the design requirements, pour concrete into the foundation pit to permanently fix the bottom of the columns.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated column spacing and verticality integrated control device, characterized in that, include: The positioning frame (1) has mounting blocks (11) on its upper and lower peripheral inner walls. The calibration mechanism (2) is symmetrically arranged on the inner periphery of the positioning frame (1) and is used to apply correction force from the periphery of the column in multiple directions to correct the verticality of the prefabricated column. The support mechanism (4) is symmetrically arranged on the outer periphery of the positioning frame (1) to provide stable support for the positioning frame (1).

2. The prefabricated column spacing and verticality integrated control device according to claim 1, characterized in that: Rangefinders (12) are installed on the two lower side walls of the positioning frame (1).

3. The prefabricated column spacing and verticality integrated control device according to claim 2, characterized in that, The calibration facility (2) includes: A bidirectional screw (21) is rotatably connected to the mounting block (11) on its upper and lower sides respectively; The power component (22) is connected below the bidirectional screw (21); Two sets of correction components (3) are threadedly connected to the threaded sections at both ends of the bidirectional screw (21).

4. The prefabricated column spacing and verticality integrated control device according to claim 3, characterized in that, The correction component (3) includes: The movable seat (31) is threadedly connected to the bidirectional screw (21); The correction plate (32) is located on the side of the movable seat (31) facing the precast column, and anti-slip protrusions (321) are provided on it. The first telescopic rod (33) is connected at one end to the movable seat (31) and at the other end to the correction plate (32); The second telescopic rod (34) is symmetrically arranged on both sides of the first telescopic rod (33), and its two ends are connected to the movable seat (31) and the correction plate (32) respectively.

5. The prefabricated column spacing and verticality integrated control device according to claim 4, characterized in that, The support mechanism (4) includes: Support plate (41) is provided on the outer periphery of positioning frame (1); The diagonal brace (42) is hinged at one end to the support plate (41) and connected to the ground at the other end.

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