Circular foundation anchor bolt installation positioning device and positioning method

Abstract

The present invention relates to the technical field of anchor bolt installation, in particular to a circular foundation anchor bolt installation positioning device and a positioning method, which includes a bolt positioning plate. The bolt positioning plate includes an upper positioning plate and a lower positioning plate. The upper positioning plate and the lower positioning plate are respectively sector plates with the same size. Equal-spacing calibration angle irons are arranged between the upper positioning plate and the lower positioning plate. Positioning round holes are arranged at the positions of the upper positioning plate corresponding to the calibration angle irons. Positioning U-shaped holes are opened on one side of the outer edge of the lower positioning plate at the positions corresponding to the positioning round holes of the lower positioning plate. Fixed clamps are respectively arranged outside each U-shaped positioning hole; it also includes an auxiliary platform and a center positioning plate. The center positioning plate is connected to the auxiliary platform through a positioning pin; the center positioning plate is correspondingly connected to the calibration angle irons through a plurality of horizontal positioning tie rods. The device is more conducive to the installation of bolts by using the positioning U-shaped holes, is more flexible to use, and has high installation accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of anchor bolt installation, and particularly to a circular foundation anchor bolt installation positioning device and a positioning method. Background Art

[0002] Circular foundations are mostly used for the installation of chimneys and cylindrical equipment. Due to their large weight and high requirements for the foundation, a large number of embedded bolts are exposed during installation. Therefore, high requirements are imposed on the installation quality of the bolts, and requirements such as axis dimension, center radius dimension, bolt spacing, perpendicularity, elevation, etc. must be ensured. How to quickly and accurately position and install the embedded bolts of the foundation is a problem that needs to be solved.

[0003] The existing patent CN 217028173 U discloses a precise positioning tool for embedded anchor bolts of a circular equipment foundation, which includes a positioning central axis arranged at the center of the circular equipment foundation, a bearing tray arranged on the positioning central axis for elevation control and positioning bars, and a number of positioning sleeves; a central axis sleeve is sleeved on the positioning central axis at the top of the bearing tray, and upper radial positioning bars and lower radial positioning bars are respectively arranged between the central axis sleeve and each positioning sleeve; upper circumferential positioning bars and lower circumferential positioning bars are respectively arranged between adjacent two positioning sleeves; an embedded anchor bolt is arranged in each positioning sleeve, and a elevation control nut is arranged at the upper end of the embedded anchor bolt. Although this tool can fix the height of the anchor bolt, the positioning sleeve has great limitations in actual use and is not applicable to some positions where the bolt cannot be inserted vertically; moreover, when the reversing positioning bars and radial positioning bars of this tool are welded to the sleeve, there is a situation of shrinkage deformation, and the distance between two positioning sleeves and the distance between the positioning sleeve and the central sleeve are prone to deviation. Summary of the Invention

[0004] An embodiment of the present invention provides a circular foundation anchor bolt installation positioning device and a positioning method, which aim to solve the limitations in the use of existing anchor bolt positioning tools, and at the same time, problems such as shrinkage deformation and dimensional deviation of steel bars during tool manufacturing due to welding.

[0005] On one hand, an embodiment of the present invention provides a circular foundation anchor bolt installation positioning device, including a bolt positioning plate, the bolt positioning plate includes an upper positioning plate and a lower positioning plate, the upper positioning plate and the lower positioning plate are respectively sector plates with the same size, right-angle angle irons are arranged at equal intervals between the upper positioning plate and the lower positioning plate, positioning round holes are arranged at the positions of the upper positioning plate corresponding to the right-angle angle irons, and positioning U-shaped holes are opened on one side of the outer edge of the lower positioning plate at the positions of the lower positioning plate corresponding to the positioning round holes, and fixing clamps are respectively arranged outside each U-shaped positioning hole;

[0006] It further includes an auxiliary platform and a central positioning plate. The central positioning plate is connected to the auxiliary platform through positioning pins; the central positioning plate is correspondingly connected to the right-angle calibrating iron through several horizontal positioning tie rods.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0008] The present invention uses the positioning round holes on the upper positioning plate to fix the roundness of the bolt, uses the lower positioning plate and the fixing fixture to cooperate with the nut to position the height of the bolt, and the setting of the positioning U-shaped holes is more conducive to the installation of the bolt, making it more flexible to use; the bolt positioning plate in this embodiment is made by a mold, and there will be no problems such as dimensional deviation.

[0009] Furthermore, the preferred solution adopted by the present invention is:

[0010] An inclined support is provided between the right-angle calibrating iron and the horizontal positioning tie rod.

[0011] Cross positioning lines are provided on the auxiliary platform, and a positioning pin is provided at the center of the cross positioning lines. The central positioning plate is connected to the positioning pin through the positioning holes on it.

[0012] The fixing fixture includes a stop block and a pin iron. A stop block is respectively provided at a position close to the outer edge of the lower positioning plate on both sides of the positioning U-shaped hole. A limiting notch is opened at the lower end of the right-angle calibrating iron, and the pin iron is inserted into the limiting notch.

[0013] This embodiment also relates to a method for installing and positioning circular foundation anchor bolts, which is carried out according to the following steps:

[0014] S1. The auxiliary platform is installed in the foundation, leveled with a level and then fixed. The cross axis of the circular foundation is projected onto the auxiliary platform by a total station to position the center point of the foundation, and the central positioning pin is fixedly welded at the center point;

[0015] S2. Fix the central positioning plate to the positioning pin of the auxiliary platform, and ensure that the central axis of the positioning pin is consistent with the center of the positioning hole on the central positioning plate;

[0016] S3. Starting from any side of the bolts on the cross axis of the circular foundation as a reference, rotate and construct left and right along the starting positioning line, and install the bolts on the circular foundation in batches; during installation, calculate the size of the bolts protruding from the device according to the elevation of the auxiliary platform, set the elevation of the bolts, pass the bolts through the positioning U-shaped holes and positioning round holes from bottom to top in sequence, use the nut to adjust the height, and then fix the bolts at the position of the lower positioning plate with the pin iron. Finally, weld the lower part of the bolts firmly to the reserved reinforcing bars in the foundation. And so on, complete the installation of all the bolts in the same group; to reduce errors, every 90 degrees and 180 degrees are used as the starting positions for each check;

[0017] S4. After installing a set of bolts, using the last bolt in the upper group as a reference, repeat S3 to complete the installation of bolts at the remaining positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and do not limit the present invention. In the drawings:

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic structural diagram of the central positioning plate and the bolt positioning plate as a whole

[0021] Figure 3 is a schematic structural diagram of the central positioning plate, the horizontal positioning tie rod, and the lower positioning plate;

[0022] Figure 4 is Figure 2 an enlarged view of part A of

[0023] In the figure: central positioning plate 1; positioning hole 2; horizontal positioning tie rod 3; lower cushion plate 4; inclined support 5; alignment angle iron 6; positioning round hole 7; upper positioning plate 8; lower positioning plate 9; pin iron 10; stop block 11; positioning U-shaped hole 12; limit notch 13; auxiliary platform 14; positioning pin 15. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the embodiments and the drawings. Herein, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but do not limit the present invention.

[0025] As Figure 1 shown, a circular foundation anchor bolt installation and positioning device mainly consists of a bolt positioning plate, an auxiliary platform, and a central positioning plate 1, etc.

[0026] The bolt positioning plate mainly consists of an upper positioning plate 8 and a lower positioning plate 9, etc. The upper positioning plate 8 and the lower positioning plate 9 are respectively sector plates with the same size. There are alignment angle irons 6 arranged at equal intervals between the upper positioning plate 8 and the lower positioning plate 9. The upper positioning plate 8 is provided with a positioning round hole 7 at the position corresponding to the alignment angle iron 6. The lower positioning plate 9 is provided with a positioning U-shaped hole 12 on one side of the outer edge of the lower positioning plate 9 at the position corresponding to the positioning round hole 7. Fixed jigs are respectively arranged outside each positioning U-shaped hole 12.

[0027] As Figure 2 、 Figure 3As shown in the figure, in this embodiment, the fixed fixture is composed of two stoppers 11 and one dowel iron 10. One stopper 11 is welded at each position near the outer edge on both sides of the positioning U-shaped hole 12. A limit notch 13 is provided at the lower end of the side of the calibration right-angle iron 6 parallel to the length direction of the positioning U-shaped hole 12. After the bolt passes through the positioning round hole 7 and the positioning U-shaped hole 12, the dowel iron 10 passes through the gap between the limit notch 13 and the stopper 11 on its corresponding side, and the bolt is clamped and fixed on the upper surface of the lower positioning plate 9.

[0028] Cross positioning lines are provided on the auxiliary platform 14, and a positioning pin 15 is welded at the center of the cross positioning lines. The center positioning plate 1 is installed on the positioning pin 15 through the positioning hole 2 provided thereon and can rotate around the positioning pin 15.

[0029] In this embodiment, a horizontal positioning pull rod 3 is connected between the center positioning plate 1 and the lower positioning plate 9, and the horizontal positioning pull rod 3 is welded corresponding to the calibration right-angle iron 6 one by one.

[0030] In order to ensure the flatness of the overall device, a lower cushion plate 4 is welded below the horizontal positioning pull rod 3 to adjust the flatness of the overall device and prevent deviation.

[0031] In this embodiment, an inclined support 5 is welded between the calibration right-angle iron 6 and the horizontal positioning pull rod 3.

[0032] When this device is applied,

[0033] S1. Install the auxiliary platform 1 in the foundation, level it with a level and then fix it. The auxiliary platform 1 can set embedded parts during the casting of the bearing platform concrete. After the auxiliary platform 1 is leveled, fix its bottom to the embedded parts, or directly level the auxiliary platform 1 and temporarily fix the bottom of the auxiliary platform 1 to the foundation steel bars;

[0034] Use a total station to project the cross axis of the circular foundation onto the auxiliary platform to locate the center point of the foundation, and fixedly weld the center positioning pin at the center point.

[0035] S2. Fix the center positioning plate 1 to the positioning pin of the auxiliary platform, and ensure that the central axis of the positioning pin is consistent with the center of the positioning hole 2 on the center positioning plate 1.

[0036] S3. Starting from any side of the bolts on the circular foundation cross axis as the reference, rotate and construct left and right along the starting positioning line, and install the bolts on the circular foundation in batches; during installation, calculate the size of the bolts protruding from the device according to the elevation of the auxiliary platform, set the elevation of the bolts, pass the bolts through the positioning U-shaped holes 12 and positioning round holes 7 from bottom to top in sequence, use nuts to adjust the height, and then use the dowel iron 10 to fix the bolts at the position of the lower positioning plate 9, and finally weld the lower part of the bolts firmly to the foundation reserved reinforcement bars. And so on, complete the installation of all the bolts in the same group; to reduce errors, the starting positions for checking are every 90 degrees and 180 degrees.

[0037] S4. After installing a group of bolts, taking the last bolt of the previous group as the reference, repeat S3 to complete the installation of the bolts at the remaining positions.

[0038] The present invention uses the positioning round holes of the upper positioning plate to fix the roundness of the bolts, uses the lower positioning plate and the fixing fixture in cooperation with the nuts to position the height of the bolts, and the setting of the positioning U-shaped holes is more conducive to the installation of the bolts and is more flexible to use; the bolt positioning plate in this embodiment is made by a mold, and there will be no problems such as size deviation.

[0039] The above are only the preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are all included in the protection scope of the present invention.

Claims

1. A circular foundation anchor bolt installation and positioning device, including a bolt positioning plate, Characterized in that: The bolt positioning plate includes an upper positioning plate and a lower positioning plate. The upper positioning plate and the lower positioning plate are respectively fan-shaped plates with the same size. Right-angle iron calibrators are equidistantly arranged between the upper positioning plate and the lower positioning plate. Positioning round holes are arranged at the positions of the upper positioning plate corresponding to the right-angle iron calibrators. At the positions of the lower positioning plate corresponding to the positioning round holes, positioning U-shaped holes are opened on one side of the outer edge of the lower positioning plate. Fixed clamps are respectively arranged outside each U-shaped positioning hole; It also includes an auxiliary platform and a center positioning plate. The center positioning plate is connected to the auxiliary platform through a positioning pin; the center positioning plate is correspondingly connected to the right-angle iron calibrator through a number of horizontal positioning tie rods.

2. The circular foundation anchor bolt installation and positioning device according to claim 1, Characterized in that: An inclined support is arranged between the right-angle iron calibrator and the horizontal positioning tie rod.

3. The circular foundation anchor bolt installation and positioning device according to claim 1, Characterized in that: Cross positioning lines are arranged on the auxiliary platform, and a positioning pin is arranged at the center of the cross positioning lines. The center positioning plate is connected in cooperation with the positioning pin through the positioning holes on it.

4. The circular foundation anchor bolt installation and positioning device according to claim 1, Characterized in that: The fixed clamp includes a stop block and a pin iron. A stop block is respectively arranged at the positions on both sides of the positioning U-shaped hole close to the outer edge of the lower positioning plate. A limit notch is opened at the lower end of the right-angle iron calibrator, and the pin iron is inserted into the limit notch.

5. A circular foundation anchor bolt installation and positioning method according to any one of claims 1 to 4, Characterized in that, It is carried out according to the following steps: S1. Install the auxiliary platform in the foundation, level it with a level and then fix it; use a total station to project the cross axis of the circular foundation onto the auxiliary platform to locate the center point of the foundation, and fixedly weld the center positioning pin at the center point; S2. Fix the center positioning plate to the positioning pin of the auxiliary platform, and ensure that the central axis of the positioning pin is consistent with the center of the positioning hole on the center positioning plate; S3. Starting from any side of the bolts on the cross axis of the circular foundation as a reference, rotate and construct left and right with the starting positioning line, and install the bolts on the circular foundation in batches; during installation, calculate the size of the bolts leaking out of the device according to the elevation of the auxiliary platform, set the elevation of the bolts, pass the bolts through the positioning U-shaped holes and positioning round holes from bottom to top in sequence, use nuts to adjust the height, and then use the pin iron to fix the bolts at the position of the lower positioning plate, and finally weld the lower part of the bolts firmly to the reserved inserted steel bars of the foundation. By analogy, complete the installation of all bolts in the same group; to reduce errors, every 90 degrees and 180 degrees are used as the starting positions for each check; S4. After installing a group of bolts, using the last bolt of the previous group as a reference, repeat S3 to complete the installation of bolts at the remaining positions.

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