A device for temporarily fixing the upper section column

Abstract

This invention relates to the field of steel structure assembly, specifically to a device for temporarily fixing upper column sections. It includes two rectangular frames respectively positioned on the outer sides of two mating steel columns. Each rectangular frame includes two sets of support members of different sizes positioned around the outer perimeter of the corresponding steel column. Each support member includes four support plates: two front and two back support plates form one set, and two left and two right support plates form another set. The upper and lower corresponding support plates are connected by positioning components. Sliding openings are provided on both the left and right sides of the front and back support plates for sliding. During the welding process of two steel columns, this invention, through the cooperation of the two rectangular frames and auxiliary components, can stably and temporarily fix the upper steel column to the upper part of the lower steel column. This not only ensures accurate positioning of the upper and lower steel columns but also eliminates the need for cumbersome measurement of the ear plate welding position using measuring tools, greatly simplifying the operation process and reducing the difficulty of butt welding.

Description

Technical Field

[0001] This invention relates to the field of steel structure assembly, specifically to a device for temporarily fixing upper column sections. Background Technology

[0002] In the construction of prefabricated steel structures, the quality of steel column installation directly determines the safety and stability of the overall building structure. Currently, the "ear plate-clamping plate-bolt" temporary fixing process is commonly used when welding upper and lower steel column sections. First, ear plates are welded to the upper outer perimeter of the lower steel column and the lower outer perimeter of the upper steel column, respectively. Second, pairs of clamping plates (matching ear plates in size) are fitted onto the outer perimeter of the corresponding ear plates. Finally, high-strength bolts are used to tighten the upper steel column, completing the temporary fixing, and then butt welding is carried out. After welding is completed, the ear plates are removed.

[0003] However, this method of temporarily fixing the upper steel column has certain shortcomings. To ensure that the alignment of the upper and lower steel columns does not easily shift when connecting the clamp plate and the ear plate with bolts, it is necessary to use measuring tools to accurately measure the welding position of the ear plate on the lower steel column before welding the ear plate to the upper steel column. This process requires further precise measurement of the ear plate's welding position on the upper steel column, and finally, welding the ear plate to the measured position. This method not only results in low efficiency during the splicing of the upper and lower steel columns but also requires high precision in the ear plate welding, further increasing the difficulty of butt welding the upper and lower steel columns. Summary of the Invention

[0004] In view of the above problems, the present application provides a device for temporarily fixing the upper column. During the welding of two steel columns, the upper steel column can be stably and temporarily fixed to the upper part of the lower steel column. This not only ensures the accurate positioning of the upper and lower steel columns, but also eliminates the need for cumbersome measurement of the ear plate welding position using measuring tools, greatly simplifying the operation process and reducing the difficulty of butt welding.

[0005] To achieve the above objectives, the present application provides the following technical solution: The present invention provides a device for temporarily fixing an upper section column, comprising two rectangular frames respectively disposed on the outer sides of two docking steel columns. The rectangular frames include two sets of support members of different sizes disposed around the outer sides of the corresponding steel columns. Each support member includes four support plates, with the front and rear support plates forming one set and the left and right support plates forming another set. The upper and lower corresponding support plates are connected by positioning members.

[0006] The left and right sides of the front and rear support plates are provided with sliding openings for the left and right support plates to slide, and the left and right support plates pass through the corresponding two sliding openings respectively. The side of the support plate away from the positioning component is provided with an auxiliary component to assist the two steel columns in precise docking.

[0007] The positioning component includes a rectangular sleeve located on the upper part of the upper support plate. A positioning insert is slidably inserted into the bottom of the rectangular sleeve, and the positioning insert is locked to the rectangular sleeve by bolts.

[0008] The corresponding support is provided with multiple alignment mechanisms, each including multiple fixed blocks fixedly mounted on the front and rear support plates. A crossbar is fixedly mounted on one side of each fixed block, and an alignment component is slidably mounted on the crossbar.

[0009] Two rectangular frames are positioned and connected to the outside of the lower steel column to temporarily fix the upper steel column. After the rectangular frames are repositioned, they can cooperate with the alignment mechanism to temporarily fix the horizontal steel column to the outside of the upper steel column.

[0010] According to an advantageous embodiment, two ear plates symmetrically distributed front and back are fixedly provided on both the left and right sides of the lower steel column, and a positioning insert is located between the two corresponding ear plates, and the positioning insert is connected to the two ear plates by two bolts.

[0011] According to an advantageous embodiment, a rectangular opening is provided on the side of the upper and lower support plates that are close to each other. A rectangular block is fixedly provided on the upper part of the rectangular sleeve and the bottom of the positioning insert plate, and the rectangular block is located in the rectangular opening. A bolt is threaded on the side of the support plate away from the steel column, and the rectangular block is locked in the rectangular opening by the bolt.

[0012] According to an advantageous embodiment, the auxiliary component includes a mounting plate fixedly disposed on the side of the support plate away from the positioning member, a threaded rod being threaded on the mounting plate, a pressing plate being rotatably disposed on the side of the threaded rod near the steel column, and two guide rods being disposed on the side of the pressing plate away from the steel column, with the end of the guide rod away from the pressing plate passing through the mounting plate.

[0013] According to an advantageous embodiment, the alignment member includes a movable plate slidably disposed on a crossbar, a connecting block disposed on the side of the movable plate near the steel column, a connecting rod fixedly disposed on the side of the connecting block near the movable plate, the end of the connecting rod away from the connecting block passing through the movable plate and having threads on its outer side, a fastening ring disposed on the outer thread of the connecting rod, and the fastening ring being in close contact with the movable plate on the side near the movable plate.

[0014] According to an advantageous embodiment, a return spring is sleeved on the outer side of the crossbar, with its two ends connected to the crossbar and the movable plate, respectively, and the outer side of the crossbar is provided with a scale.

[0015] According to an advantageous embodiment, the upper and lower parts of the support plate are provided with multiple locking holes, the locking holes on the front and rear support plates are connected to the sliding opening, and a locking element for locking two adjacent support plates is provided between the multiple locking holes.

[0016] According to an advantageous embodiment, the locking member includes two locking pins that are interposed between corresponding plurality of locking holes, a connecting plate is fixedly disposed on the upper part of the two corresponding locking pins, and the bottom of the connecting plate contacts the upper part of the corresponding support plate.

[0017] According to an advantageous embodiment, an extrusion ring is fixedly disposed on the side of the extrusion plate away from the threaded rod.

[0018] Compared with the prior art, the device for temporarily fixing the upper column provided by the embodiments of the present invention has the following beneficial effects: 1. In the process of welding two steel columns, the present invention can stably and temporarily fix the upper steel column to the upper part of the lower steel column by means of the cooperation of two rectangular frames and auxiliary components. This not only ensures the accurate positioning of the upper and lower steel columns, but also eliminates the need to use measuring tools to measure the welding position of the ear plate, greatly simplifying the operation process and reducing the difficulty of butt welding.

[0019] 2. This invention includes an alignment mechanism. When welding a horizontal rectangular steel column to one side of a rectangular steel column, the worker can pull the moving plate to make the connecting block contact the outer side of the upper rectangular steel column. Then, according to the scale on the crossbar, the support plate is moved to the predetermined position, and the connecting block is welded to the upper horizontal rectangular steel column. Next, the horizontal rectangular steel column is finely adjusted to fit the support plate, thereby ensuring that the horizontal rectangular steel column is centered on the upper steel column. Finally, the upper and lower support plates are adjusted, and the positioning insert is welded to the upper rectangular steel column to temporarily fix the horizontal rectangular steel column. This effectively ensures the quality of the horizontal rectangular steel column welded to the upper rectangular steel column and improves the applicability of the equipment.

[0020] 3. In this invention, an extrusion ring is provided. When temporarily aligning and welding two circular steel columns, an extrusion ring of appropriate size is installed on the extrusion plate. Then, the extrusion plate is moved to drive the extrusion ring to fit against the outer side of the circular steel column, thereby stabilizing and fixing the circular steel column and further improving the applicability of the equipment. Attached Figure Description

[0021] Figure 1 This is a structural diagram of Embodiment 1 of the present invention.

[0022] Figure 2 This is a top view of Embodiment 1 of the present invention.

[0023] Figure 3 This is a diagram showing the connection structure of two rectangular frames in Embodiment 1 of the present invention.

[0024] Figure 4 This is a structural diagram showing the separation of the positioning component and the support plate in Embodiment 1 of the present invention.

[0025] Figure 5 This is a structural diagram showing the separation of the locking element and the support plate in Embodiment 1 of the present invention.

[0026] Figure 6 This is a structural diagram of Embodiment 2 of the present invention.

[0027] Figure 7 This is a side view of Embodiment 2 of the present invention.

[0028] Figure 8 This is a structural diagram of the connection between the alignment mechanism and the support plate in Embodiment 2 of the present invention.

[0029] Figure 9 This is a structural diagram of Embodiment 3 of the present invention.

[0030] Figure 10 This is a top view of Embodiment 3 of the present invention.

[0031] Figure 11 This is a structural diagram of the connection between the extrusion ring and the extrusion plate in Embodiment 3 of the present invention.

[0032] The attached figures are labeled as follows: 1. Steel column; 2. Rectangular frame; 21. Support plate; 22. Sliding mouth; 3. Positioning component; 31. Rectangular sleeve; 32. Positioning insert plate; 33. Rectangular block; 4. Auxiliary component; 41. Mounting plate; 42. Threaded rod; 43. Extrusion plate; 44. Guide rod; 5. Alignment mechanism; 51. Fixing block; 52. Crossbar; 53. Alignment component; 531. Moving plate; 532. Connecting block; 533. Connecting rod; 534. Fastening ring; 535. Return spring; 6. Ear plate; 7. Rectangular opening; 8. Locking hole; 9. Locking component; 91. Locking pin; 92. Connecting plate; 10. Extrusion ring. Detailed Implementation

[0033] The following is combined with Figure 1 - Figure 11 This application will now be described in further detail.

[0034] Example 1

[0035] Please refer to Figure 1 , Figure 2 and Figure 3 A device for temporarily fixing an upper section column includes two rectangular frames 2 respectively set on the outside of two connecting steel columns 1. The rectangular frames 2 include two sets of support members of different sizes set on the outer perimeter of the steel columns 1. The support members include four support plates 21. The front and rear support plates 21 form one set, and the left and right support plates 21 form another set. The left and right sides of the front and rear support plates 21 are provided with sliding openings 22 for the left and right support plates 21 to slide. The left and right support plates 21 pass through the corresponding two sliding openings 22 respectively. The upper and lower corresponding support plates 21 are positioned and connected by positioning members 3.

[0036] See Figure 2Multiple locking holes 8 are provided on the upper and lower parts of the support plate 21. The locking holes 8 on the front and rear support plates 21 are connected to the sliding opening 22, and a locking element 9 for locking two adjacent support plates 21 is provided between the multiple locking holes 8.

[0037] See Figure 3 and Figure 5 The locking component 9 includes two locking pins 91 that are interposed between the corresponding multiple locking holes 8. A connecting plate 92 is fixedly provided on the upper part of the two locking pins 91. The bottom of the connecting plate 92 contacts the upper part of the corresponding front and rear support plates 21.

[0038] See Figure 1 , Figure 2 and Figure 3 On the side of the support plate 21 away from the positioning member 3, there is an auxiliary component 4 for assisting the two steel columns 1 to be accurately connected. The auxiliary component 4 includes a mounting plate 41 fixedly installed on the side of the support plate 21 away from the positioning member 3. A threaded rod 42 is threaded on the mounting plate 41. A pressing plate 43 is rotatably installed on the side of the threaded rod 42 close to the steel column 1. Two guide rods 44 are provided on the side of the pressing plate 43 away from the steel column 1. The end of the guide rod 44 away from the pressing plate 43 passes through the mounting plate 41.

[0039] After the rectangular steel column 1 located on the lower side is installed and fixed, when it is necessary to continue welding the rectangular steel column 1 on the upper part, the two adjacent support plates 21 can be spliced ​​first through the sliding joint 22 and locked by the locking pin 91. Then, the two support plates 21 that are combined into an L-shaped structure after locking are attached to the outside of the lower rectangular steel column 1. Then, the other two support plates 21 are spliced ​​on the two combined support plates 21 by using the locking pin 91, so that the four support plates 21 form a rectangular frame 2 on the outside of the lower rectangular steel column 1.

[0040] However, the two subsequent support plates 21 are not yet in contact with the outer side of the lower rectangular steel column 1. At this point, the worker can rotate the threaded rod 42 on the corresponding support plate 21, and with the assistance of the guide rod 44, the corresponding pressing plate 43 can be moved and brought into contact with the outer side of the lower rectangular steel column 1 (e.g., Figure 2 As shown in the figure, the lower rectangular frame 2 can be initially positioned on the outside of the lower rectangular steel column 1.

[0041] See Figure 1 , Figure 3 and Figure 4 The positioning component 3 includes a rectangular sleeve 31 disposed on the upper part of the upper support plate 21. A positioning insert 32 is slidably inserted into the bottom of the rectangular sleeve 31, and the positioning insert 32 and the rectangular sleeve 31 are locked together by bolts.

[0042] See Figure 3Two ear plates 6 are fixedly installed on the left and right sides of the lower steel column 1, which are symmetrically distributed front and back. The positioning plate 32 is located between the two corresponding ear plates 6, and the positioning plate 32 is connected to the two ear plates 6 by bolts.

[0043] See Figure 4 A rectangular opening 7 is provided on the side of the upper and lower support plates 21 that are close to each other. A rectangular block 33 is fixedly provided on the upper part of the rectangular sleeve 31 and the bottom of the positioning insert plate 32, and the rectangular block 33 is located in the rectangular opening 7. A bolt is threaded on the side of the support plate 21 away from the steel column 1, and the rectangular block 33 is locked in the rectangular opening 7 by the bolt.

[0044] After the lower rectangular frame 2 is initially positioned, the rectangular block 33 on the positioning plate 32 can be inserted into the rectangular opening 7 on the lower support, and the rectangular block 33 can be locked with bolt three to complete the installation of the positioning plate 32. At this time, the two corresponding ear plates 6 can be attached to the outside of the positioning plate 32 and welded to the lower rectangular steel column 1. Then, the two ear plates 6 are connected to the positioning plate 32 with bolt two to ensure that the positioning plate 32 is installed firmly and will not shake, and also to ensure the firmness of the lower rectangular frame 2 installed on the lower rectangular steel column 1.

[0045] Then, using external hoisting equipment, the corresponding rectangular steel column 1 is hoisted to the upper part of the lower rectangular steel column 1. Next, the rectangular block 33 on the rectangular sleeve 31 is inserted into the rectangular opening 7 on the upper support plate 21 and locked with bolts. Then, following the same steps as above, the four upper support plates 21 are spliced ​​into a rectangular frame 2 around the outside of the upper rectangular steel column 1, and the rectangular sleeve 31 is inserted into the positioning plate 32 and locked with bolts. Thus, the upper and lower rectangular frames 2 can be used to temporarily fix the upper rectangular steel column 1, while ensuring the precise connection between the upper and lower rectangular steel columns 1, which ensures the welding quality of the upper and lower rectangular steel columns 1 in the future.

[0046] Example 2

[0047] See Figure 6 , Figure 7 and Figure 8 The corresponding support is provided with an alignment mechanism 5, which includes multiple fixing blocks 51 respectively fixed on the front and rear support plates 21. A crossbar 52 is fixedly provided on one side of the fixing block 51, and an alignment member 53 is slidably provided on the crossbar 52.

[0048] See Figure 8The alignment component 53 includes a movable plate 531 slidably mounted on the crossbar 52. A connecting block 532 is provided on the side of the movable plate 531 near the steel column 1. A connecting rod 533 is fixedly mounted on the side of the connecting block 532 near the movable plate 531. The end of the connecting rod 533 away from the connecting block 532 passes through the movable plate 531 and has threads on its outer side. A fastening ring 534 is provided on the outer thread of the connecting rod 533. The side of the fastening ring 534 near the movable plate 531 is in close contact with the movable plate 531.

[0049] See Figure 8 A return spring 535 is sleeved on the outer side of the crossbar 52. The two ends of the return spring 535 are connected to the crossbar 52 and the moving plate 531 respectively, and the outer side of the crossbar 52 is provided with a scale.

[0050] After welding the upper rectangular steel column 1 to the lower rectangular steel column 1, when it is necessary to weld the horizontal rectangular steel column 1 to the outside of the upper rectangular steel column 1, the corresponding horizontal rectangular steel column 1 is hoisted to the side of the upper rectangular steel column 1 using external hoisting equipment. Then, the worker can install the alignment mechanism 5 on the corresponding support plate 21. The worker can then contact the connecting block 532 on the moving plate 531 with the outside of the upper rectangular steel column 1 and move the front support plate 21, thereby moving the fixing block 51 on the front support plate 21. The movement of the fixing block 51 moves the corresponding horizontal bar 52. The scale on the horizontal bar 52 is then observed to ensure that the corresponding support plate 21 can be moved to the predetermined position. Positioning: At this point, the connecting block 532 can be welded to the contact position of the upper rectangular steel column 1. Then, the position of the hoisted horizontal rectangular steel column 1 is finely adjusted so that its outer side contacts the front support plate 21. Following the same steps, the rear support plate 21 can be installed and also fitted to the outer side of the horizontal rectangular steel column 1, so that the horizontal rectangular steel column 1 is in the center position on the upper steel column 1. Next, the upper and lower support plates 21 can be fixed to the fixed left and right support plates 21 by inserting and fixing them through the sliding mouth 22 and locking pin 91. Then, the threaded rods 42 on the two mounting plates 41 on the upper and lower sides are turned so that the corresponding pressing plates 43 move to fit against the surface of the horizontal rectangular steel column 1 (e.g., Figure 7 As shown), the positioning plate 32 can be welded to the contact position of the upper rectangular steel column 1 to complete the temporary fixation of the horizontal rectangular steel column 1 and ensure the quality of the horizontal rectangular steel column 1 welded to the upper rectangular steel column 1.

[0051] Furthermore, after the horizontal rectangular steel column 1 is welded, the connecting block 532 can be easily separated from the moving plate 531 by the fastening ring 534, and the positioning plate 32 can be easily separated from the support plate 21 by the bolts. This makes it easy to remove the four support plates 21 from the upper horizontal rectangular steel column 1. When welding the horizontal rectangular steel column 1 again, it is only necessary to continue to install the corresponding connecting block 532 and positioning plate 32.

[0052] Example 3

[0053] See Figure 11 An extrusion ring 10 is fixedly provided on the side of the extrusion plate 43 away from the threaded rod 42.

[0054] To allow the rectangular frame 2 to temporarily fix the circular steel column 1, compression rings 10, adapted to the circular size, can be installed on each of the four compression plates 43. After the four support plates 21 are assembled into a rectangular frame 2 and fitted onto the outside of the circular steel column 1, rotating the threaded rod 42 moves the compression plates 43, causing the compression rings 10 to move and fit against the outside of the circular steel column 1 (e.g., ...). Figure 9 and Figure 10 As shown in the figure, the circular steel column 1 can also be stably fixed by using four compression rings 10, which further improves the applicability of the equipment. Both the circular steel column 1 and the rectangular steel column 1 can be stably and temporarily fixed.

[0055] In specific operations, when welding the corresponding rectangular steel column 1 on the upper rectangular steel column 1, the four corresponding support plates 21 are spliced ​​together to form a rectangular frame 2 through the sliding joint 22. The locking pin 91 is used to pass through the locking hole 8 for connection and fixation. Then, the threaded rod 42 on the corresponding support plate 21 is rotated, and the extrusion plate 43 is pushed to fit the steel column 1 with the assistance of the guide rod 44. This allows the lower rectangular frame 2 to be initially positioned on the outside of the lower rectangular steel column 1. Subsequently, the ear plate 6 is welded to the lower steel column 1 and connected to the positioning insert plate 32 through bolt 2 to reinforce the lower rectangular frame 2. Then, the corresponding rectangular steel column 1 is placed above the lower rectangular steel column 1 using hoisting equipment. The lower frame assembly steps are repeated to complete the upper frame construction. The rectangular sleeve 31 is then inserted into the positioning insert plate 32 to achieve temporary fixation and precise alignment of the upper and lower rectangular steel columns 1.

[0056] When it is necessary to weld the horizontal rectangular steel column 1 to the fixed upper rectangular steel column 1, the alignment mechanism 5 is installed on the corresponding support. The moving plate 531 drives the connecting block 532 to contact the upper rectangular steel column 1. According to the scale of the crossbar 52, the two support plates 21 are moved to the predetermined position and the position of the horizontal rectangular steel column 1 is finely adjusted so that the horizontal rectangular steel column 1 is located in the center of the upper rectangular steel column 1. Then the connecting block 532 is welded to the upper rectangular steel column 1. After that, the upper and lower support plates 21 are moved to the appropriate position so that the positioning insert plate 32 is welded to the upper rectangular steel column 1. Then the corresponding threaded rod 42 is rotated so that the extrusion plate 43 cooperates with the extrusion ring 10 to press against the horizontal rectangular steel column 1, thereby temporarily fixing the horizontal rectangular steel column 1.

[0057] In addition, for the circular steel column 1, an extrusion ring 10 of appropriate size can be installed on the extrusion plate 43, and adjusted by the threaded rod 42 to fit the circular steel column 1, which further improves the applicability of the equipment and can stably fix both the circular steel column 1 and the rectangular steel column 1.

[0058] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0059] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0060] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A device for temporarily fixing an upper section column, comprising two rectangular frames respectively disposed on the outer sides of two connecting steel columns, characterized in that: The rectangular frame includes two sets of support members of different sizes set around the outside of the steel column. Each support member includes four support plates, with the front and rear support plates forming one set and the left and right support plates forming another set. The upper and lower corresponding support plates are connected by positioning members. The left and right sides of the front and rear support plates are provided with sliding openings for the left and right support plates to slide, and the left and right support plates pass through the corresponding two sliding openings respectively. The side of the support plate away from the positioning component is provided with an auxiliary component to assist the two steel columns to be accurately connected. The positioning component includes a rectangular sleeve set on the upper part of the upper support plate, a positioning insert plate slidably inserted into the bottom of the rectangular sleeve, and the positioning insert plate and the rectangular sleeve are locked together by bolts. The corresponding support is provided with an alignment mechanism, which includes multiple fixed blocks respectively fixedly mounted on the front and rear support plates. A crossbar is fixedly mounted on one side of the fixed block, and an alignment component is slidably mounted on the crossbar. Two rectangular frames are positioned and connected to the outside of the lower steel column to temporarily fix the upper steel column. After the rectangular frames are repositioned, they can cooperate with the alignment mechanism to temporarily fix the horizontal steel column to the outside of the upper steel column. The alignment component includes a movable plate slidably mounted on a crossbar. A connecting block is provided on the side of the movable plate near the steel column. A connecting rod is fixedly mounted on the side of the connecting block near the movable plate. The end of the connecting rod away from the connecting block passes through the movable plate and has threads on its outer side. A fastening ring is provided on the outer thread of the connecting rod. The fastening ring is in close contact with the movable plate on the side near the movable plate.

2. The device for temporarily fixing the upper section column according to claim 1, characterized in that, Two ear plates are fixedly installed on both the left and right sides of the lower steel column, which are symmetrically distributed front and back. The positioning plate is located between the two corresponding ear plates, and the positioning plate is connected to the two ear plates by two bolts.

3. The device for temporarily fixing the upper section column according to claim 1, characterized in that, A rectangular opening is provided on the side of the upper and lower support plates that are close to each other. A rectangular block is fixedly installed on the upper part of the rectangular sleeve and the bottom of the positioning insert plate, and the rectangular block is located inside the rectangular opening. A bolt is threaded on the side of the support plate away from the steel column, and the rectangular block is locked in the rectangular opening by the bolt.

4. The device for temporarily fixing the upper section column according to claim 1, characterized in that, The auxiliary component includes a mounting plate fixedly mounted on the side of the support plate away from the positioning element. A threaded rod is threaded on the mounting plate, and a pressing plate is rotatably mounted on the side of the threaded rod near the steel column. Two guide rods are mounted on the side of the pressing plate away from the steel column, and the ends of the guide rods away from the pressing plate pass through the mounting plate.

5. The device for temporarily fixing the upper section column according to claim 1, characterized in that, A return spring is fitted on the outer side of the crossbar, with its two ends connected to the crossbar and the movable plate, respectively. The outer side of the crossbar is also marked with graduations.

6. The device for temporarily fixing the upper section column according to claim 1, characterized in that, The upper and lower parts of the support plate are provided with multiple locking holes. The locking holes on the front and rear support plates are connected to the sliding opening, and a locking element for locking two adjacent support plates is provided between the multiple locking holes.

7. The device for temporarily fixing the upper section column according to claim 6, characterized in that, The locking component includes two locking pins that are interposed between corresponding multiple locking holes. A connecting plate is fixedly mounted on the upper part of the two locking pins together, and the bottom of the connecting plate contacts the upper part of the corresponding support plate.

8. The device for temporarily fixing the upper section column according to claim 4, characterized in that, An extrusion ring is fixedly installed on the side of the extrusion plate away from the threaded rod.

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