A square steel tube concrete column marking device and its usage method

Abstract

This invention provides a marking device and method for square steel tube concrete columns, relating to the field of experimental device technology. It includes two opposing frames and a limiter for limiting the distance between the two frames. Each frame has a horizontally movable vertical bar and a vertically movable horizontal bar, which are used to mark vertical and horizontal lines corresponding to scale lines on the frames, respectively. During marking operations, the two frames are positioned on opposite sides of the square steel tube concrete column. When the limiter is unlocked, the frames can move towards or away from the column, and when they approach or conform to the column's side, they are locked in place by the limiter, enabling marking of both sides of the column in a single positioning operation. This improves upon the inaccuracy and low efficiency of existing marking tools.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and more specifically, to a square steel tube concrete column marking device and its usage method. Background Technology

[0002] With the development of the field of civil engineering structures, structural testing has become increasingly important, playing a crucial role in studying the performance of engineering structures. During structural testing, to better observe the failure characteristics of test components, marking is typically performed on their surfaces. Currently, square steel tube concrete columns are mainly of two types: right-angled and chamfered. However, using traditional tools for marking these two types of columns is inefficient, especially since the presence of chamfers and welds makes it difficult to accurately position the steel ruler and tape measure, hindering the marking operation and ultimately affecting the accuracy of the recorded test results. Therefore, a marking device is urgently needed to improve its accuracy and efficiency. Summary of the Invention

[0003] This invention discloses a marking device for square steel tube concrete columns, which has a simple structure and is easy to operate, aiming to improve the problems of inaccurate marking and low marking efficiency of existing marking tools.

[0004] The present invention adopts the following solution:

[0005] A square steel tube concrete column marking device includes two frames arranged opposite each other and a limiter for limiting the distance between the two frames. The frames are provided with a vertical bar that can move laterally and a horizontal bar that can move vertically. The vertical bar and the horizontal bar are used to mark vertical and horizontal lines respectively corresponding to the scale lines on the frames.

[0006] The two frames are located on the two sides of the square steel tube concrete column during the marking operation. The frames are configured to move in the direction of approaching or moving away from the square steel tube concrete column when the limiter is unlocked, and are locked and limited by the limiter when approaching or fitting the side of the square steel tube concrete column, so as to complete the marking of the two sides of the square steel tube concrete column in one positioning.

[0007] As a further improvement, the limiter includes a connecting rod and locking elements and bolts disposed at both ends of the connecting rod. One end of the locking element is connected to a fixing rod on the frame via the bolt, and the other end is provided with a slot through which the connecting rod passes. The frame is locked or unlocked by tightening or loosening the bolt.

[0008] As a further improvement, the frame includes a first crossbeam and a second crossbeam arranged opposite to each other, and a first column and a second column arranged opposite to each other. The two crossbeams are provided with a first sliding groove, and the two ends of the vertical rod are adapted to the first sliding groove so that the vertical rod can move laterally. The two columns are provided with a second sliding groove, and the two ends of the crossbeam are adapted to the second sliding groove so that the crossbeam can move vertically.

[0009] As a further improvement, the vertical rod extends along its length and has a guide groove, and the horizontal rod passes through the guide groove so that the horizontal rod and the vertical rod can move relative to each other.

[0010] As a further improvement, the fixing rod is configured to be parallel to the crossbeam, and the connecting rod is disposed in the mounting groove formed between the fixing rod and the crossbeam.

[0011] As a further improvement, a limiter is provided at each of the four corners of the frame.

[0012] As a further improvement, the end of the crossbar is provided as a threaded section, which passes through the second groove and can be locked via a nut.

[0013] As a further improvement, the crossbar extends outward with a protrusion, the protrusion being higher than the width of the second sliding groove, for lateral positioning with the column.

[0014] As a further improvement, the column is provided with guide parts at both ends, and the guide parts extend into the first sliding groove.

[0015] Another method for using the square steel tube concrete column marking device as described above includes the following steps:

[0016] Step 1: Assemble the frame, including the horizontal and vertical bars on it;

[0017] Step 2: Place the two frames on opposite sides of the square steel-concrete composite column;

[0018] Step 3: Assemble the limiters, adjust the frame position, and then tighten the bolts at both ends of the connecting rod to position the frame for the first time.

[0019] Step 4: Move the horizontal and vertical bars on both sides to draw horizontal and vertical lines at the corresponding scale lines;

[0020] Step 5: Loosen the bolts and remove the two frames. Repeat Step 3 to bring the frames close to or fit against the other two sides of the square steel tube concrete column to achieve the second positioning of the frames. Repeat Step 4 to draw lines on the other two sides of the square steel tube concrete column.

[0021] Step Six: Loosen the bolts and remove the two frames to complete the marking of the four sides of the square steel tube concrete column.

[0022] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0023] In this application, the limiters position the two frames corresponding to the two sides of the square steel tube concrete column, respectively. By moving the horizontal and vertical bars on the frames, horizontal and vertical lines are drawn according to the corresponding scale lines, respectively. The accuracy is high and is not affected by chamfers or welds. At the same time, it can achieve marking of both sides in one positioning or clamping, improving work efficiency. Compared with the prior art, the advantages of this application are obvious. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the crossbar structure according to one embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of a limiter according to one embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the framework of one embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the locking member and bolt according to one embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the vertical rod according to one embodiment of the present invention;

[0031] Figures 7 to 10 This is a schematic diagram of the structure of one embodiment of the present invention in different parts.

[0032] Icons: 1-Frame; 2-Horizontal bar; 3-Vertical bar; 4-Connecting rod; 5-Locking component; 6-Nut; 7-Guide groove; 8-Guide part; 9-Bolt; 10-First slide groove; 11-Second slide groove; 12-First column; 13-Second column; 14-First fixing rod; 15-First crossbeam; 16-Second fixing rod; 17-Second crossbeam. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example

[0035] Combination Figures 1 to 10 This embodiment provides a marking device for square steel tube concrete columns, including two opposing frames 1 and a limiter for limiting the distance between the two frames 1. The frames 1 are provided with a vertical rod 3 that can move laterally and a horizontal rod 2 that can move vertically. The vertical rod 3 and the horizontal rod 2 are used to mark vertical and horizontal lines respectively corresponding to the scale lines on the frames 1. During the marking operation, the two frames 1 are located on the two sides of the square steel tube concrete column. When the limiter is unlocked, the frames 1 can move in the direction of approaching or moving away from the square steel tube concrete column, and when they approach or fit against the side of the square steel tube concrete column, they are locked and limited by the limiter, so as to complete the marking of the two sides of the square steel tube concrete column in one positioning.

[0036] In this embodiment, the limiters position the two frames 1 corresponding to the two sides of the square steel tube concrete column, respectively. By moving the horizontal bars 2 and vertical bars 3 on the frames 1, horizontal and vertical lines are drawn according to the corresponding scale lines, respectively. The accuracy is high and is not affected by chamfers or welds. At the same time, it can achieve marking of both sides in one positioning or clamping, improving work efficiency. It should be noted that the positioning or clamping force of the limiters is sufficient to prevent the relative square steel tube concrete column from sliding after the fixed frame 1 is locked, thus facilitating the operation of construction personnel.

[0037] For example, the limiter includes a connecting rod 4 and locking members 5 and bolts 9 disposed at both ends of the connecting rod 4. One end of the locking member 5 is connected to a fixing rod on the frame 1 via the bolt 9, and the other end has a slot through which the connecting rod 4 passes. The frame 1 is locked or unlocked by tightening or loosening the bolt 9. For example, the locking member 5 is L-shaped, with a slot in its vertical portion and a through mounting hole in its horizontal portion. The fixing rod has an assembly hole corresponding to the mounting hole, and the assembly hole has an internal thread. The bolt 9 passes through the locking member 5 and is tightened to lock it to the fixing rod. Preferably, the rotating head of the bolt 9 can be configured as a cross or a flower shape, etc., to facilitate disassembly and assembly.

[0038] In a preferred embodiment, the frame 1 includes a first crossbeam 15 and a second crossbeam 17 arranged opposite each other, and a first column 12 and a second column 13 arranged opposite each other. Scale lines are provided on both the columns and the crossbeams. The two crossbeams are provided with first sliding grooves 10, and the two ends of the vertical rod 3 are adapted to the first sliding grooves 10 to allow the vertical rod 3 to move laterally. The two columns are provided with second sliding grooves 11, and the two ends of the crossbar 2 are adapted to the second sliding grooves 11 to allow the crossbar 2 to move vertically. Further, the end of the crossbar 2 is provided with a threaded section, which passes through the second sliding groove 11 and can be locked by a nut 6. The crossbar 2 extends outward with a protrusion, the protrusion height of which is greater than the groove width of the second sliding groove 11, for lateral positioning with the column. When the crossbar 2 moves to a predetermined position, it is locked with the threaded section by the nut 6 to prevent the crossbar 2 from shifting during the marking process. Guide portions 8 are provided at both ends of the column, and the guide portions 8 extend into the first sliding grooves 10. Preferably, the first groove 10 can be configured as a T-shaped groove, and the guide part 8 is configured to conform to the T-shaped groove so as to limit the vertical movement of the column.

[0039] In other embodiments, the vertical rod 3 extends along its length with a guide groove 7, and the horizontal rod 2 passes through the guide groove 7 so that the horizontal rod 2 and the vertical rod 3 can move relative to each other. This through-type arrangement can also reduce the space occupied by the horizontal rod 2 and the vertical rod 3, so that the horizontal rod 2 and the vertical rod 3 can be closer to the side of the square steel tube concrete column, thereby ensuring the accuracy of the marking.

[0040] Based on the above embodiments, in an optional embodiment of the present invention, a limiter is arranged at each of the four corners of the frame 1. The fixing rod is arranged parallel to the crossbeam, and the connecting rod 4 is arranged in the mounting groove formed between the fixing rod and the crossbeam. For example, the first crossbeam 15 above the frame 1 is arranged parallel to the first fixing rod 14 to form a first mounting groove, and the two ends of the first connecting rod 4 are respectively inserted into two opposite first mounting grooves. The second crossbeam 17 below the frame 1 is arranged parallel to the second fixing rod 16 to form a second mounting groove, and the two ends of the second connecting rod 4 are respectively inserted into two opposite second mounting grooves. Both ends of each connecting rod 4 are locked and positioned by bolts 9 to clamp and position the frame 1 and the square steel tube concrete column. It should be noted that the thickness of the crossbeam and the column is greater than the thickness of the crossbar 2 and the vertical bar 3 to ensure that the crossbeam and the column contact the concrete column surface preferentially when clamped.

[0041] The present invention further provides a method for using the square steel tube concrete column marking device as described in the above embodiment, comprising the following steps:

[0042] Step 1: Assemble frame 1, as well as the horizontal bars 2 and vertical bars 3 on frame 1;

[0043] Step 2: Place the two frames 1 on opposite sides of the square steel-concrete composite column;

[0044] Step 3: Assemble the limiter, adjust the position of frame 1, and then tighten the bolts 9 at both ends of the connecting rod 4 to position frame 1 for the first time;

[0045] Step 4: Move the horizontal bar 2 and the vertical bar 3 on both sides respectively to draw horizontal and vertical lines at the corresponding scale lines;

[0046] Step 5: Loosen bolt 9, remove the two frames 1, repeat step 3, bring frame 1 close to or fit against the other two sides of the square steel tube concrete column to achieve the second positioning of frame 1; repeat step 4 to draw lines on the other two sides of the square steel tube concrete column.

[0047] Step 6: Loosen bolts 9 and remove the two frames 1 to complete the marking of the four sides of the square steel pipe concrete column.

[0048] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions that fall within the scope of the present invention are within the scope of protection of the present invention.

Claims

1. A marking device for square steel tube concrete columns, characterized in that, It includes two frames arranged opposite each other and a limiter for limiting the distance between the two frames. The frames are provided with a vertical bar that can move laterally and a horizontal bar that can move vertically. The vertical bar and the horizontal bar are used to draw vertical and horizontal lines corresponding to the scale lines on the frames, respectively. During the marking operation, the two frames are located on the two sides of the square steel tube concrete column. The frames are configured to move in the direction of approaching or moving away from the square steel tube concrete column when the limiter is unlocked, and are locked and limited by the limiter when approaching or fitting the side of the square steel tube concrete column, so as to complete the marking of the two sides of the square steel tube concrete column in one positioning. The limiter includes a connecting rod and locking components and bolts disposed at both ends of the connecting rod. One end of the locking component is connected to a fixing rod on the frame via the bolt, and the other end is provided with a slot through which the connecting rod passes. The frame is locked or unlocked by tightening or loosening the bolt. The frame includes a first crossbeam and a second crossbeam arranged opposite to each other, and a first column and a second column arranged opposite to each other. The two crossbeams are provided with a first sliding groove, and the two ends of the vertical rod are adapted to the first sliding groove so that the vertical rod can move laterally. The two columns are provided with a second sliding groove, and the two ends of the crossbeam are adapted to the second sliding groove so that the crossbeam can move vertically. The vertical rod extends along its length and has a guide groove, and the horizontal rod passes through the guide groove so that the horizontal rod and the vertical rod can move relative to each other; The fixing rod is arranged parallel to the crossbeam, and the connecting rod is disposed in the mounting groove formed between the fixing rod and the crossbeam.

2. The square steel tube concrete column marking device according to claim 1, characterized in that, One limiter is disposed at each of the four corners of the frame.

3. The square steel tube concrete column marking device according to claim 1, characterized in that, The end of the crossbar is provided with a threaded section, which passes through the second groove and can be locked via a nut.

4. The square steel tube concrete column marking device according to claim 3, characterized in that, The crossbar extends outward with a protrusion. The height of the protrusion is greater than the width of the second sliding groove, which is used to limit the lateral movement of the column.

5. The square steel tube concrete column marking device according to claim 1, characterized in that, The column is provided with guide parts at both ends, and the guide parts extend into the first sliding groove.

6. A method of using the square steel tube concrete column marking device as described in claim 1, characterized in that, Includes the following steps: Step 1: Assemble the frame, including the horizontal and vertical bars on it; Step 2: Place the two frames on opposite sides of the square steel-concrete composite column; Step 3: Assemble the limiters, adjust the frame position, and then tighten the bolts at both ends of the connecting rod to position the frame for the first time. Step 4: Move the horizontal and vertical bars on both sides to draw horizontal and vertical lines at the corresponding scale lines; Step 5: Loosen the bolts and remove the two frames. Repeat Step 3 to bring the frames close to or fit against the other two sides of the square steel tube concrete column to achieve the second positioning of the frames. Repeat Step 4 to draw lines on the other two sides of the square steel tube concrete column. Step Six: Loosen the bolts and remove the two frames to complete the marking of the four sides of the square steel tube concrete column.

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