Positioning method capable of quickly positioning steel structure cylinder top

Abstract

The invention discloses a steel structure cylinder top positioning device which comprises two calipers, four fastening devices and a prismatic lens device, the two calipers are vertically arranged in a cross shape, the four fastening devices are installed at the two ends of the two calipers respectively, each fastening device comprises a C-shaped sliding measuring block, the sliding measuring blocks are wrapped at the bottom ends of the calipers, and the prismatic lens device is arranged on the sliding measuring blocks. The bottom end of the sliding measuring block is fixedly connected with a fastening block, the calipers are arranged at the top of the steel structure cylinder, the fastening block is attached to the side face of the steel structure cylinder, the prismatic lens device comprises a base plate and a prism plate which are integrated, a positioning target is arranged on the prism plate, and the prism plate is arranged at the top of the intersection position of the two calipers. The center of the positioning target is aligned with the crossed center point of the two calipers, and the two calipers are connected with the base plate. The lines of the two calipers intersect at the center of the steel structure cylinder, so that the circle center of the positioning target and the circle center of the steel structure cylinder coincide in the vertical direction, construction efficiency is improved, labor force is saved, construction precision is guaranteed, and very good practicability is achieved.

Description

Technical Field

[0001] The invention belongs to the field of building construction, and in particular relates to a positioning method for quickly positioning a cylindrical top of a steel structure. Background Art

[0002] Thanks to their advantages, such as high strength, short construction cycles, environmentally friendly and low-carbon construction, and prefabricated construction, steel structures are increasingly being used in high-rise buildings, large-scale structures, factory buildings, commercial and residential projects, and more. Before locating and installing a circular steel column, it is necessary to mark the center of the column on the top of the solid steel column and place a small prism at the center to facilitate later installation and positioning measurements using a total station.

[0003] In practice, the center of the cylinder's top must be determined by the intersection of two diameters. However, accurately drawing the diameter of the cylinder's top is difficult. This, coupled with machining errors, can easily lead to inaccurate center markings, affecting the accuracy of subsequent steel column installation. Furthermore, placing a prism at the center requires manual climbing to the top of the cylinder to hold the prism. This long-term effort, coupled with the risk of holding the prism at high altitude, also increases the risk of this task. Summary of the Invention

[0004] The present invention provides a positioning method for quickly positioning a cylindrical top of a steel structure, so as to solve the technical problems mentioned in the previous background technology.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a positioning method for quickly positioning the top of a steel structure cylinder, including a positioning device and a positioning method, the positioning device including two calipers, a fastening device and a prism device, the two calipers are arranged in a cross shape up and down, four fastening devices are provided, and the four fastening devices are respectively installed at both ends of the two calipers, the fastening device includes a C-shaped sliding measuring block, the sliding measuring block is wrapped around the bottom end of the caliper, the side end of the sliding measuring block is threadedly connected with a fastening bolt, the fastening bolt is against the caliper, and the bottom end of the sliding measuring block is fixedly connected with a fastening block, the caliper is arranged at the top of the steel structure cylinder and the fastening block is attached to the side surface of the steel structure cylinder, the prism device includes an integrated base plate and a prism plate, the prism plate has a positioning target, the prism plate is arranged at the top of the intersection of the two calipers, the center of the positioning target is aligned with the intersection center point of the two calipers, the two calipers are connected to the base plate, and a scale is provided on the top of the caliper. The positioning method includes the following steps: Step 1: According to the position of the semi-adjustable sliding measuring block, make the distance between the fastening block and the prism plate larger than the radius of the steel structure cylinder; Step 2: Install the positioning device on the top of the steel structure column; Step 3: Adjust the position of the fastening block so that the scale corresponding to the position of the fastening block is equal to the radius of the fastening block and the steel structure cylinder. Change the two fastening blocks to move the same distance according to the actual diameter of the steel structure cylinder to ensure that the position of the prism plate is centered. Step 4: Fix the fastening block by tightening the bolts; Step 5: Use the total station to aim at the positioning target and obtain the coordinates of the steel structure cylinder; Step 6: Adjust the position of the steel structure cylinder according to the coordinates of the steel structure cylinder; Step 7: Repeat steps 5-6 until the steel structure column reaches the predetermined position and the positioning is completed; Step 8. Remove the positioning device.

[0006] By adopting the above technical solution, when using, first slide the sliding measuring block to the outer end of the caliper, then place it on the top of the steel structure cylinder, and then slide the sliding measuring block to fit the steel structure cylinder. After the four fastening blocks are tangent to the steel structure cylinder and the scale of the sliding measuring block corresponds to the radius of the steel structure cylinder, the lines of the two calipers intersect at the center of the steel structure cylinder, so that the positioning target and the center of the steel structure cylinder are vertically aligned. Finally, use the total station to align the positioning target, determine the position of the steel structure cylinder, and install it after meeting the requirements. It is easy and simple to use, improves construction efficiency, saves labor, and can adjust the position of the prism when there is an error in the steel structure cylinder, also ensures construction accuracy, and has very good practicality.

[0007] Preferably, the two calipers are rotatably connected to the base plate via a rotating shaft.

[0008] By adopting the above technical solution, Preferably, a bolt cap is fixed to one end of the rotating shaft located on the base plate, a groove is provided at the bottom end of the caliper below, and a thread is provided on the rotating shaft, which is threadedly connected to a nut located in the groove.

[0009] Preferably, the fastening block is in the shape of a plate along the radial direction of the steel structure cylinder, and one end of the fastening block is against the side surface of the steel structure cylinder.

[0010] Preferably, a heightened portion is provided at one end of the fastening block close to the steel structure column.

[0011] Preferably, the raised portion and the fastening block are transitioned through an inclined surface.

[0012] Preferably, two limit blocks are provided diagonally at the two intersecting corners, and the limit blocks are fixed on the lower caliper and extend to one side of the upper caliper.

[0013] The beneficial effects of the present invention are as follows: when in use, the sliding measuring block is first slid to the outer end of the caliper, and then placed on the top of the steel structure cylinder, and then the sliding measuring block is slid to fit the steel structure cylinder. After the four fastening blocks are tangent to the steel structure cylinder and the scale of the sliding measuring block corresponds to the radius of the steel structure cylinder, the lines of the two calipers intersect at the center of the steel structure cylinder, so that the positioning target and the center of the steel structure cylinder are vertically aligned. Finally, the total station is used to align the positioning target, determine the position of the steel structure cylinder, and install it after meeting the requirements. It is easy and simple to use, improves construction efficiency, saves labor, and can adjust the position of the prism when there is an error in the steel structure cylinder, also ensures construction accuracy, and has very good practicality.

[0014] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention; the main purpose and other advantages of the present invention can be realized and obtained through the solutions particularly pointed out in the description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 1 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 is a schematic structural diagram of a fastening device according to an embodiment of the present invention; Figure 3 is a schematic structural diagram of a prism lens device according to an embodiment of the present invention; Figure 4 2 is a cross-sectional view of the connection between the caliper and the prism sheet device according to an embodiment of the present invention.

[0016] Figure numerals: 1. caliper; 11. scale; 12. limit block; 2. fastening device; 21. sliding measuring block; 22. fastening bolt; 23. fastening block; 24. heightened portion; 3. prism device; 31. base plate; 32. prism plate; 33. positioning target; 4. rotating shaft; 41. bolt cap; 42. nut. DETAILED DESCRIPTION

[0017] The technical solutions of the present invention are described in detail below through examples. The following examples are merely exemplary and can only be used to explain and illustrate the technical solutions of the present invention, and cannot be interpreted as limiting the technical solutions of the present invention.

[0018] Combine Figure 1-4A positioning method for quickly positioning the top of a steel structure cylinder includes a positioning device and a positioning method. The positioning device includes two calipers 1, a fastening device 2, and a prism device 3. The two calipers 1 are arranged in a cross shape up and down. Four fastening devices 2 are provided, and the four fastening devices 2 are respectively installed at the two ends of the two calipers 1. The fastening device 2 includes a C-shaped sliding measuring block 21. The sliding measuring block 21 is wrapped around the bottom end of the caliper 1. The side end of the sliding measuring block 21 is threadedly connected to a fastening bolt 22, and the fastening bolt 22 is against the caliper 1. The bottom end of the sliding measuring block 21 is fixedly connected to a fastening block 23. The caliper 1 is set on the top of the steel structure cylinder and the fastening block 23 is attached to the side of the steel structure cylinder. The prism lens device 3 includes an integrated base plate 31 and a prism plate 32. The prism plate 32 has a positioning target 33. The prism plate 32 is set at the top of the intersection of the two calipers 1. The center of the positioning target 33 is aligned with the intersection center point of the two calipers 1. The two calipers 1 are connected to the base plate 31. The top of the caliper 1 is provided with a scale 11. The positioning method includes the following steps: Step 1: According to the position of the semi-adjustable sliding measuring block 21, the distance between the fastening block 23 and the prism plate 32 is greater than the radius of the steel structure cylinder; Step 2: Install the positioning device on the top of the steel structure column; Step 3: Adjust the position of the fastening block 23 so that the scale 11 corresponding to the position of the fastening block 23 is equal to the radius of the fastening block 23 and the steel structure cylinder. Change the two fastening blocks 23 to move the same distance according to the actual diameter of the steel structure cylinder to ensure that the position of the prism plate 32 is centered. Step 4: Fix the fastening block 23 by tightening the bolts 22; Step 5: The total station sights the positioning target 33 to obtain the coordinates of the steel structure cylinder; Step 6: Adjust the position of the steel structure cylinder according to the coordinates of the steel structure cylinder; Step 7: Repeat steps 5-6 until the steel structure column reaches the predetermined position and the positioning is completed; Step 8. Remove the positioning device.

[0019] When in use, first slide the sliding measuring block 21 to the outer end of the caliper 1, and then place it on the top of the steel structure cylinder, and then slide the sliding measuring block 21 to fit the steel structure cylinder. After the four fastening blocks 23 are tangent to the steel structure cylinder and the scale 11 of the sliding measuring block 21 corresponds to the radius of the steel structure cylinder, the lines of the two calipers 1 intersect at the center of the steel structure cylinder, so that the positioning target 33 and the center of the steel structure cylinder are vertically aligned. Finally, use the total station to align the positioning target 33 to determine the position of the steel structure cylinder. After meeting the requirements, it is installed. It is easy and simple to use, improves construction efficiency, saves labor, and can adjust the position of the prism when there is an error in the steel structure cylinder, and also ensures construction accuracy, with very good practicality.

[0020] The two calipers 1 are connected to the base plate 31 through the rotating shaft 4. The two calipers 1 can be rotated and recovered, and the prism device 3 can also be adjusted to match the direction of the total station, which is easy to use.

[0021] A cap 41 is fixed to one end of the rotating shaft 4, located on the base plate 31. Cap 41 can be integrated using a readily achievable mechanical process, such as by inserting it and then welding a retaining plate to it. The bottom end of the caliper 1 has a groove, and the rotating shaft 4 is threaded. This threaded connection engages a nut 42 located within the groove. The rotation mechanism is rational, leak-proof, and the caliper 1 can be smoothly mounted on a steel column.

[0022] The fastening block 23 is in the shape of a plate along the radial direction of the steel structure cylinder. One end of the fastening block 23 is against the side surface of the steel structure cylinder, which can be well aligned with the diameter of the steel structure cylinder.

[0023] The fastening block 23 is provided with a raised portion 24 at one end close to the steel structure column, which can provide a larger mating surface and a stable structure.

[0024] The heightened portion 24 and the fastening block 23 are transitioned through an inclined surface, which can provide a stronger structural strength and reduce the influence of deformation on the error.

[0025] Two limit blocks 12 are arranged diagonally at the two intersecting corners. The limit blocks 12 are fixed on the lower caliper 1 and extend to one side of the upper caliper 1. The two calipers 1 can be exactly vertical when opened and can also be retracted when retracted. Due to the presence of the sliding measuring block 21, they can be retracted into an X-shape with a smaller angle.

[0026] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that a person skilled in the art can conceive within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for quickly locating a cylindrical top of a steel structure, characterized in that: The invention comprises a positioning device and a positioning method, wherein the positioning device comprises two calipers (1), a fastening device (2) and a prism device (3), wherein the two calipers (1) are arranged in a cross shape up and down, four fastening devices (2) are provided, and the four fastening devices (2) are respectively installed at the two ends of the two calipers (1), and the fastening device (2) comprises a C-shaped sliding measuring block (21), wherein the sliding measuring block (21) is wrapped around the bottom end of the caliper (1), and the side end of the sliding measuring block (21) is threadedly connected with a fastening bolt (22), and the fastening bolt (22) is against the caliper (1), and the bottom end of the sliding measuring block (21) is A fastening block (23) is fixedly connected, the caliper (1) is arranged on the top of the steel structure cylinder and the fastening block (23) is attached to the side of the steel structure cylinder, the prism lens device (3) includes an integrated base plate (31) and a prism plate (32), the prism plate (32) has a positioning target (33), the prism plate (32) is arranged on the top of the intersection of the two calipers (1), the center of the positioning target (33) is aligned with the intersection center point of the two calipers (1), the two calipers (1) are connected to the base plate (31), and a scale (11) is provided on the top of the caliper (1). The positioning method includes the following steps: Step 1: According to the position of the semi-adjustable sliding measuring block (21), the distance between the fastening block (23) and the prism plate (32) is made larger than the radius of the steel structure cylinder; Step 2: Install the positioning device on the top of the steel structure column; Step 3: Adjust the position of the fastening block (23) so that the scale (11) corresponding to the position of the fastening block (23) is equal to the radius of the fastening block (23) and the steel structure cylinder, and change the two fastening blocks (23) to move the same distance according to the actual diameter of the steel structure cylinder to ensure that the position of the prism plate (32) is centered; Step 4: Fix the fastening block (23) by fastening the bolts (22); Step 5: The total station sights the positioning target (33) to obtain the coordinates of the steel structure cylinder; Step 6: Adjust the position of the steel structure cylinder according to the coordinates of the steel structure cylinder; Step 7: Repeat steps 5-6 until the steel structure column reaches the predetermined position and the positioning is completed; Step 8. Remove the positioning device.

2. A method for quickly locating a cylindrical top of a steel structure according to claim 1, characterized in that: The two calipers (1) and the base plate (31) are connected in rotation via a rotating shaft (4).

3. The method for quickly positioning a cylindrical top of a steel structure according to claim 2, characterized in that: The rotating shaft (4) is located at one end of the base plate (31) and is fixed with a bolt cap (41). The bottom end of the caliper (1) below is provided with a groove. The rotating shaft (4) is provided with a thread, and the rotating shaft (4) is threadedly connected to a nut (42) located in the groove.

4. The method for quickly positioning a cylindrical top of a steel structure according to claim 3, characterized in that: The fastening block (23) is in the shape of a plate along the radial direction of the steel structure cylinder, and one end of the fastening block (23) abuts against the side surface of the steel structure cylinder.

5. The method for quickly positioning a cylindrical top of a steel structure according to claim 4, characterized in that: The fastening block (23) is provided with a heightened portion (24) at one end close to the steel structure column.

6. The method for quickly positioning a cylindrical top of a steel structure according to claim 5, characterized in that: The heightened portion (24) and the fastening block (23) are transitioned via an inclined surface.

7. The method for quickly positioning a cylindrical top of a steel structure according to claim 6, characterized in that: Two limit blocks (12) are arranged diagonally at the two intersecting corners. The limit blocks (12) are fixed on the lower caliper (1) and extend to one side of the upper caliper (1).

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