Anchor bolt installation measuring tool and measuring method thereof

Abstract

The invention relates to the technical field of foundation bolt installation, in particular to a foundation bolt installation measuring tool and a measuring method thereof.The foundation bolt installation measuring tool comprises a temporary installation plate installed at the top of a foundation short column, insertion holes corresponding to foundation bolts in number and insertion position are formed in the installation plate, and limiting pieces are annularly arranged on the outer sides of the insertion holes; the top of the mounting plate is provided with a movable steel ruler, and the centers of the two are connected. When the device is used, the center of the steel ruler is movably connected with the center of the mounting plate, after the foundation bolt penetrates through the insertion hole, the distance between the foundation bolt and the center can be measured by rotating the steel ruler, the measuring speed is increased, the overall structure is simple, part of the structure can be repeatedly used, and cost is saved; the limiting pieces are welded with the inserting hole as the circle center, the distance between the foundation bolts and the center hole and the distance between the adjacent foundation bolts are finely adjusted through the limiting pieces, and therefore the installation accuracy of the foundation bolts is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of anchor bolt installation, in particular to an anchor bolt installation measuring tool and a measuring method thereof. Background Art

[0002] In the construction process of a thermal power plant, the installation of the anchor bolts of the boiler steel frame is undoubtedly a crucial link. Regardless of the size of the boiler steel frame, this step is indispensable, aiming to accurately locate the anchor bolts to ensure that they are installed correctly. At present, the installation and positioning of the anchor bolts of the boiler steel frame is mainly completed by the traditional method of pulling the steel wire for measurement, but this method has obvious defects: the measurement accuracy of the tape measure is easily affected by multiple external factors such as wind, temperature fluctuations, and tension changes; at the same time, in the process of measuring and adjusting the spacing of the anchor bolts, a large amount of manpower is often required to continuously fine-tune the bolt position, accompanied by frequent measurement and verification steps to ensure that the accuracy meets the standards.

[0003] In view of this, we propose an anchor bolt installation measurement tool and a measurement method thereof to optimize this cumbersome and extremely high-precision workflow. Summary of the invention

[0004] The object of the present invention is to provide a foundation bolt installation measurement tool and a measurement method thereof to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A foundation bolt installation and measurement tool comprises a mounting plate mounted on the top of a foundation short column, characterized in that: the mounting plate is provided with insertion holes corresponding to the number and insertion positions of the foundation bolts, and a limit piece for adjusting the position of the foundation bolts is arranged around the outer side of the insertion hole; a steel ruler is arranged on the top of the mounting plate, and the two are movably connected at the center.

[0007] As a further solution of the present invention: a first center hole is opened at the center of the mounting plate, and a second center hole is opened at the center of the steel ruler, wherein the centers of the first center hole and the second center hole are coaxial.

[0008] As a further solution of the present invention: a detachable bracket is provided above the mounting plate, a plumb bob is bolted to the bracket, wherein a vertical line of the plumb bob passes through the first center hole and the second center hole.

[0009] As a further solution of the present invention: the diameter D1 of the insertion hole is larger than the diameter D2 of the anchor bolt, and D1 and D2 satisfy 4mm≤D1-D2≤6mm.

[0010] As a further solution of the present invention: the steel ruler is marked with scales equidistantly from both ends with the second center hole as a base point, and each scale is provided with an observation hole.

[0011] As a further solution of the present invention: the limiting member includes a limiting nut, and the limiting nut is threadedly connected with a bolt.

[0012] A method for measuring an anchor bolt comprises the following steps:

[0013] S1. Cast the short steel frame foundation columns and clean them until the embedded parts are exposed;

[0014] S2. Use a total station to measure and determine the center point of each short column and the cross center line of the entire steel frame foundation short column and mark them, and then make a benchmark elevation on the surface of each short column;

[0015] S3. The fixing frame of the anchor bolt is welded and fixed on the embedded part based on the center point, cross center line and reference elevation;

[0016] S4. Weld or set up a bracket above the short column of the steel frame foundation, bolt a plumb bob on the bracket, and when the plumb bob is naturally vertical, it is facing the intersection of the overall cross center line of the short column of the steel frame foundation;

[0017] S5, measuring the fixing position of the anchor bolts and opening insertion holes on the mounting plate according to the measured data, and welding a limit nut on the outside of each insertion hole, and then opening a first center hole at the center of the mounting plate;

[0018] S6. Pass the plumb line of the plumb bob through the first center hole of the mounting plate and the second center hole of the steel ruler in sequence, then pass the anchor bolt through the insertion hole, and place the mounting plate on top of the foundation short column;

[0019] S7. Rotate the steel ruler with the vertical line as the center of the circle to measure the distance between the anchor bolt and the center hole, and fine-tune the distance between the anchor bolt and the center hole and the distance between adjacent anchor bolts by rotating the bolts in the limiter to confirm that the anchor bolt review meets the design requirements;

[0020] S8. Weld the mounting plate to the fixing frame of the anchor bolts, and then weld the bolts and nuts in the limiter.

[0021] As a further solution of the present invention: in S5, the limiting members are equidistantly welded with the insertion hole as the center, and the number of the limiting members is not less than three.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. When the anchor bolt installation measuring tool is used, the center of the steel ruler is flexibly connected with the center of the mounting plate. After the anchor bolt passes through the insertion hole, the steel ruler can be rotated to measure the distance from the anchor bolt to the center, thereby improving the measurement speed. The overall structure is simple, and some structures can be used repeatedly, saving costs.

[0024] 2. When the anchor bolt installation measuring tool is in use, a number of limiters are welded with the insertion hole as the center of the circle, and the distance between the anchor bolt and the center hole and the distance between adjacent anchor bolts are fine-tuned by rotating the bolts in the limiters, thereby ensuring the accuracy of the anchor bolt installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0026] Figure 2 This is the installation diagram of the mounting plate and steel ruler of this solution;

[0027] Figure 3 This is a top view of the insertion hole adjustment member of this solution;

[0028] Figure 4 This is a front view schematic diagram of the insertion hole adjustment member of this solution;

[0029] Figure 5 This is a schematic diagram of the steel ruler structure of this scheme.

[0030] The meaning of each number in the figure is:

[0031] 100, mounting plate; 101, first center hole; 102, insertion hole; 103, stopper; 110, steel ruler; 111, second center hole; 112, observation hole; 120, bracket; 121, fixing bracket. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example

[0034] At present, the installation and positioning of anchor bolts mainly rely on the traditional method of measuring with a steel wire. However, this method has obvious defects: the measurement accuracy of the tape measure is easily affected by multiple external factors such as wind, temperature fluctuations, and tension changes; at the same time, in the process of measuring and adjusting the spacing of anchor bolts, a large amount of manpower is often required to continuously fine-tune the position of the anchor bolts, accompanied by frequent measurement and verification steps to ensure that the accuracy meets the standards;

[0035] Therefore, please refer to Figure 1 , Figure 2 and Figure 5 As shown, the purpose of this embodiment is to provide a foundation bolt installation measurement tool, which includes a mounting plate 100 mounted on the top of the foundation short column. In order to facilitate the positioning of the anchor bolt, the mounting plate 100 is provided with an insertion hole 102, and the position and number of the insertion holes 102 correspond to the anchor bolts, so that the anchor bolts can pass through the insertion holes 102 and be limited by the mounting plate 100. Since the anchor bolts are fixed on the fixing frame 121, and the fixing frame 121 is welded on the embedded parts, it is very likely that deviations will occur due to improper operation. Therefore, the insertion holes 102 are provided. A limit piece 103 is welded and fixed on the outer side, and the anchor bolt is fine-tuned by the limit piece 103, so as to reduce the error and improve the accuracy of the installation of the anchor bolt. In order to facilitate the measurement of whether the installation of the anchor bolt is accurate, a movable steel ruler 110 is provided on the top of the mounting plate 100, and the centers of the two are connected. After the anchor bolt passes through the insertion hole 102, the distance from the anchor bolt to the center can be measured axially symmetrically by rotating the steel ruler 110 with the center as the center of the circle, thereby improving the measurement speed. At the same time, the overall structure is simple, and some structures such as the steel ruler 110 can be used repeatedly, saving costs.

[0036] Since it is difficult to align the centers of the mounting plate 100 and the steel ruler 110 in actual operation, a first center hole 101 is opened at the center of the mounting plate 100, and a second center hole 111 is opened at the center of the steel ruler 110. The centers of the first center hole 101 and the second center hole 111 are coaxial. In order to visually determine that the centers of the first center hole 101 and the second center hole 111 are coaxial, a bracket 120 is installed above the mounting plate 100. The bracket 120 is welded and fixed to the side of the foundation short column or the bracket 120 is separately provided, so that the bracket 120 is detachable and reusable. The bracket 120 is bolted with a plumb bob, and the vertical line of the plumb bob passes through the first center hole 101 and the second center hole 111. In the natural vertical state, the vertical line position of the plumb bob can be regarded as coinciding with the position of the center axis of the first center hole 101 and the second center hole 111.

[0037] In order to facilitate observation of the anchor bolts through the steel ruler 110, the steel ruler 110 is marked with scales equidistantly from the second center hole 111 to both ends, and each scale is provided with an observation hole 112. After the steel ruler 110 is rotated, the anchor bolts can be observed through the observation hole 112 to determine the relative distance from the anchor bolts to the center.

[0038] In actual operation, it is difficult to ensure that the size of each insertion hole 102 is the same as the size of the anchor bolt, and the anchor bolt needs to be fine-tuned. Therefore, there is a gap between the insertion hole 102 and the anchor bolt. The diameter D1 of the insertion hole 102 is larger than the diameter D2 of the anchor bolt, and D1 and D2 satisfy 4mm≤D1-D2≤6mm. This gap can allow the anchor bolt to pass through the insertion hole 102 smoothly and facilitate the subsequent fine-tuning of the limiter 103.

[0039] In order to facilitate the adjustment of the anchor bolts and avoid complex structures, please refer to Figure 3 and Figure 4 As shown, the limit member 103 includes a limit nut, which is threadedly connected to a bolt. The bolt is rotated in the limit nut and the anchor bolt is squeezed by the side of the bolt, so as to fine-tune the position of the anchor bolt and ensure the accuracy of the installation of the anchor bolt. In order to ensure that the anchor bolt is correctly fine-tuned, the limit member 103 is equidistantly welded with the insertion hole 102 as the center, and the number of the limit members 103 is not less than three. In this embodiment, three limit members 103 are used, which are welded and fixed to the surface of the mounting plate 100 at an angle of 120° with the insertion hole 102 as the center.

[0040] This embodiment also provides a measurement method of the above-mentioned anchor bolt installation measurement tool, and the measurement method comprises the following steps:

[0041] S1. Cast the short column of the steel frame foundation. After solidification, clean the surface of the short column by chiseling to expose the embedded parts.

[0042] S2. Use a total station to measure and determine the center point of each short column and the cross center line of the entire steel frame foundation short column and mark them, and then make a benchmark elevation on the surface of each short column;

[0043] S3, the anchor bolt fixing frame 121 is welded and fixed on the embedded part based on the center point, the cross center line and the reference elevation;

[0044] S4. Weld or set up a bracket 120 above the short column of the steel frame foundation, and bolt a plumb bob to the bracket 120, and when the plumb bob is naturally vertical, it is directly opposite to the intersection of the cross center line of the overall short column of the steel frame foundation;

[0045] S5, measuring the fixing position of the anchor bolts and opening insertion holes 102 in the mounting plate 100 according to the measured data, and welding a limiting nut on the outside of each insertion hole 102, and then opening a first center hole 101 at the center of the mounting plate 100;

[0046] S6, pass the plumb line through the first center hole 101 of the mounting plate 100 and the second center hole 111 of the steel ruler 110 in sequence, then pass the anchor bolt through the insertion hole 102, and place the mounting plate 100 on top of the foundation short column;

[0047] S7, rotating the steel ruler 110 with the vertical line as the center, measuring the distance between the anchor bolt and the center hole, and fine-tuning the distance between the anchor bolt and the center hole and the distance between adjacent anchor bolts by rotating the bolts in the stopper 103, to confirm that the anchor bolt review meets the design requirements;

[0048] S8, welding the mounting plate 100 to the fixing frame 121, and then welding the bolts and nuts in the limiting member 103.

[0049] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0050] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A foundation bolt installation measurement tool, comprising a mounting plate (100) mounted on the top of a foundation short column, characterized in that: The mounting plate (100) is provided with insertion holes (102) corresponding to the number and insertion positions of the anchor bolts, and a stopper (103) for adjusting the position of the anchor bolts is provided around the outer side of the insertion hole (102); a steel ruler (110) is provided on the top of the mounting plate (100), and the two are movably connected at the center.

2. The anchor bolt installation measuring tool according to claim 1, characterized in that: A first center hole (101) is opened at the center of the mounting plate (100), and a second center hole (111) is opened at the center of the steel ruler (110), wherein the centers of the first center hole (101) and the second center hole (111) are coaxial.

3. The anchor bolt installation measuring tool according to claim 2, characterized in that: A detachable bracket (120) is provided above the mounting plate (100), and a plumb bob is bolted to the bracket (120), wherein a vertical line of the plumb bob passes through the first center hole (101) and the second center hole (111).

4. The anchor bolt installation measuring tool according to claim 1, characterized in that: The diameter D1 of the insertion hole (102) is larger than the diameter D2 of the anchor bolt, and D1 and D2 satisfy 4mm≤D1-D2≤6mm.

5. The anchor bolt installation measuring tool according to claim 1, characterized in that: The steel ruler (110) is marked with scales equidistantly from both ends with the second central hole (111) as a base point, and each scale is provided with an observation hole (112).

6. The anchor bolt installation measuring tool according to claim 1, characterized in that: The limiting member (103) comprises a limiting nut, and the limiting nut is threadedly connected with a bolt.

7. A method for measuring an anchor bolt, using the anchor bolt installation measuring tool according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Cast the short steel frame foundation columns and clean them until the embedded parts are exposed; S2. Use a total station to measure and determine the center point of each short column and the cross center line of the entire steel frame foundation short column and mark them, and then make a benchmark elevation on the surface of each short column; S3, the fixing frame (121) of the anchor bolt is welded and fixed on the embedded part based on the center point, the cross center line and the reference elevation; S4. Weld or set up a bracket (120) above the short column of the steel frame foundation, and bolt a plumb bob to the bracket (120), and when the plumb bob is naturally vertical, it is directly opposite to the intersection of the cross center line of the entire short column of the steel frame foundation; S5, measuring the fixing position of the anchor bolts and opening insertion holes (102) on the mounting plate (100) according to the measurement data, and welding a limit nut on the outside of each insertion hole (102), and then opening a first center hole (101) at the center of the mounting plate (100); S6, passing the plumb line of the plumb bob through the first center hole (101) of the mounting plate (100) and the second center hole (111) of the steel ruler (110) in sequence, then passing the anchor bolt through the insertion hole (102), and placing the mounting plate (100) on top of the foundation short column; S7, rotating the steel ruler (110) with the vertical line as the center, measuring the distance between the anchor bolt and the center hole, and fine-adjusting the distance between the anchor bolt and the center hole and the distance between adjacent anchor bolts by rotating the bolt in the stopper (103), and confirming that the anchor bolt meets the design requirements; S8, welding the mounting plate (100) to the fixing frame (121) of the anchor bolt, and then welding the bolts and nuts in the limiting member (103).

8. The measuring method of the anchor bolt installation measuring tool according to claim 7, characterized in that: In S5, the limiting members (103) are welded at equal distances with the insertion hole (102) as the center, and the number of the limiting members (103) is not less than three.

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