Steel pipe column extension auxiliary installation bracket and use method thereof

Abstract

The present invention relates to an auxiliary installation bracket for extending a steel pipe column and a method for using the bracket, which includes an angle steel and a pull plate. A support plate with an axial hole is integrated on the outer side of the angle steel, and the direction of the axial hole is consistent with the direction of the steel pipe column extension. Both ends of the pull plate are provided with strip-shaped tooth holes, and the strip-shaped tooth holes are provided with straight teeth on one side. The installation bracket also includes a locking plate and a gear shaft matched with the strip-shaped tooth hole. One end of the gear shaft is matched with the axial hole of the support plate to form a positioning rotation. The strip-shaped tooth holes at one end of each of the two pull plates are meshed with the transmission teeth in the middle of the gear shaft, and the two pull plates form relative motion along their respective length directions as the transmission teeth rotate. The other end of the gear shaft is provided with a wrench joint and penetrates the locking plate. The locking plate is provided with a tooth hole that is locked with the transmission teeth after passing through the gear shaft. The side of the locking plate is provided with a locking notch that matches the outer side of the angle steel. The gear shaft and the pull plate are fixed with the outer side of the angle steel along with the locking notch of the locking plate. The above can effectively realize the rapid auxiliary fixation of the steel pipe column extension, which is relatively reliable.

Description

Technical Field

[0001] The invention relates to the field of building pipe column connection, and is a steel pipe column extension auxiliary installation bracket and a use method thereof. Background Art

[0002] Steel frame structural columns are common structures in the field of construction and are widely used. Because the size needs to be set according to actual needs when used, they are usually designed to be extendable to meet the requirements of different frames. The existing steel frame structural column extension installation generally adopts the method of connecting ear plates, that is, at least four ear plates are provided on both sides of the two steel frame structural columns to be extended near the docking position. When docking is in place, the docking ear plates are temporarily fixed by clamps and high-strength bolts to form docking. After the steel frame structural column is adjusted in place, the docking is welded, and the ear plates are cut off after welding. The cut parts are repainted, and the extension installation operation is finally completed. This extension installation method involves the production of ear plates and clamps, as well as welding, cutting, and repainting operations between the ear plates and the steel frame structural columns. The welding and cutting of the ear plates cause certain damage to the steel frame structural columns, and the ear plates are generally difficult to reuse after being cut off, and the material waste is relatively serious. In addition, the existing steel frame structural column extension bracket is not easy to adjust, the adaptation range is extremely limited, the extension operation is relatively cumbersome, and the efficiency is low. Therefore, it is necessary to improve the existing steel frame structure column extension installation structure and installation method. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the present invention is to provide a steel pipe column extension auxiliary installation bracket and its use method to the art, so as to solve the technical problems that the existing steel frame structure column installation bracket is relatively complicated, inconvenient to adjust, use and install, has a small scope of application, and wastes materials seriously. The purpose is achieved through the following technical solutions.

[0004] The cam is an axially coupled plate which is adapted to engage with the toothed member and to engage with the toothed member so that the toothed member is in a position to move relative to the toothed member. The above structure drives the two pull plates at the angle steel to realize movement in the length direction through the rotation of the gear shaft, and the adjustment range is wide. When the two pull plates move, they will push the corners of the angle steel and the steel pipe column to form a matching clamp. Multiple angle steels are clamped together, and locking plates are used to effectively position the pull plates and angle steels. The operation is relatively convenient and efficient, and the auxiliary fixation of the steel pipe column extension is effectively realized, and the fixation is relatively reliable.

[0005] Another auxiliary installation bracket for extending a steel pipe column, the installation bracket includes an angle steel and a pull plate, the structural key points of which are that a support plate with an axial hole is integrated on the outer side of the angle steel, the direction of the axial hole is consistent with the extension direction of the steel pipe column, and both ends of the pull plate are provided with strip-shaped tooth holes with a length direction consistent with the length direction of the plate, and straight teeth are provided on one side of the strip-shaped tooth hole; the installation bracket also includes a tooth pin, and a tooth shaft that cooperates with the strip-shaped tooth hole, one end of the tooth shaft cooperates with the axial hole of the support plate to form a positioning rotation, and the two pull plates The strip-shaped tooth holes at each end of the plate are meshed with the transmission teeth in the middle of the gear shaft, and the two pull plates form relative movement along their respective length directions as the transmission teeth rotate, and a wrench joint is provided at the other end of the gear shaft; the strip-shaped tooth holes of the two pull plates corresponding to the support plate are locked and fixed with the support plate through tooth pins, that is, the support plate is provided with a tooth pin hole for inserting the tooth pin, and the top of the tooth pin is limited to the top surface of the pull plate, and the tooth pin is simultaneously meshed with the strip-shaped tooth hole of the pull plate and the tooth pin hole of the support plate to form a lock, that is, the pull plate is fixed relative to the angle steel. By adopting the tooth pin fixation instead of the locking plate fixation, the relative fixation of the pull plate and the angle steel can also be achieved, and the auxiliary fixation of the steel pipe column extension can be effectively achieved, and the fixation is more reliable.

[0006] At least the bottom end of the gear shaft is provided with a radially arranged pin hole, and the pin hole is connected to the pin limiter on the bottom surface of the support plate. Through this structure, the gear shaft is effectively prevented from falling off relative to the support plate of the angle steel, and the gear shaft connection is more reliable and stable.

[0007] At least two support plates are evenly arranged on the outer side of the angle steel along the extension direction. Through this structure, the support stability of the extension auxiliary mounting bracket is further improved.

[0008] The outer side surface of the angle steel is fixedly provided with an electromagnetic sucker. Through this structure, the angle steel and the steel pipe column are pre-fixed by the electromagnetic sucker, so as to facilitate the installation and connection of the extension auxiliary installation bracket.

[0009] The pull plate is adjustable in length, that is, the pull plate includes two sections, one of which is provided with a sliding hole at the end, and a protruding bolt seat at the end of the sliding hole, and the other is provided with a protruding convex seat at the end that slides with the sliding hole, and the direction in which the convex seat slides with the sliding hole is the direction in which the length of the pull plate is adjusted, and the bolt seat is threadedly connected to the adjusting bolt, and the adjusting bolt presses against the convex seat, and the direction in which the bolt presses against the convex seat as it rotates is consistent with the direction in which the convex seat slides relative to the sliding hole. Through this structure, further adjustment of the length direction of the pull plate is achieved, and the auxiliary installation of the extension is more reliable and convenient.

[0010] The pull plate is adjustable in length, that is, the pull plate includes three sections, namely, a left section, a middle section, and a right section. One end of the left section and the right section is provided with a straight tooth surface, and the straight tooth surface of the left section is meshed with the straight tooth surface of the right section. After meshing, the left section and the right section are connected in a straight line. The middle section is slidably sleeved on the left section and the right section, and when the middle section slides to the junction of the left section and the right section, the left section and the right section remain in a meshed connection state. Through this structure, further adjustment of the length direction of the pull plate is also achieved, and the auxiliary installation of the extension is more reliable and convenient.

[0011] A method for using a steel pipe column extension auxiliary installation bracket, the method of use is: according to the number of corners of the steel pipe column extension and docking, a corresponding number of the angle steels are selected, a support plate of each angle steel is connected to the strip-shaped tooth holes of the two pull plates through a gear shaft, and adjacent support plates of adjacent angle steels are connected through a pull plate, and the gear shafts on each angle steel support plate are rotated and adjusted in sequence, and each gear shaft drives the two pull plates to form a length adjustment along their respective length directions, until the pull plate drives the angle steel to form a pre-match at the docking position of the steel pipe column extension, at which time each gear shaft is connected to the locking plate in sequence to be fixed, and when the last gear shaft is connected to the locking plate, the gear shaft is locked in place and then the locking plate is locked and fixed, thereby completing the auxiliary fixation of the steel pipe column extension by the installation bracket, and welding is performed on the docking point of the steel pipe column after auxiliary fixation, and the locking plate, gear shaft, angle steel, and pull plate are removed after welding, thereby completing the steel pipe column extension operation.

[0012] When the gear shaft rotates, the locking plate is pre-movably connected to the wrench joint of the gear shaft, that is, the locking plate rotates freely relative to the wrench joint, and when the gear shaft is screwed into place, the tooth hole of the locking plate is meshed with the gear shaft to form a lock. In this way, it is convenient to quickly lock the gear shaft after it is adjusted into place, and it is not easy to loosen.

[0013] Another method for using an auxiliary installation bracket for extending a steel pipe column, the method is: according to the number of corners to be connected to the steel pipe column, a corresponding number of the angle steels are selected, a support plate of each angle steel is connected to the strip-shaped tooth holes of the two pull plates through a gear shaft, and adjacent support plates of adjacent angle steels are connected through a pull plate, and the gear shafts on the support plates of each angle steel are rotated and adjusted in sequence, and each gear shaft drives the two pull plates to form a length adjustment along their respective length directions, until the pull plate drives the angle steel to form a pre-match at the docking position of the steel pipe column extension, at this time, the support plate of each angle steel is fixed to the corresponding pull plate through the gear pin, and the auxiliary fixation of the steel pipe column extension by the installation bracket is completed, and the steel pipe column docking is welded after the auxiliary fixation, and the gear pins, gear shafts, angle steels, and pull plates are removed after welding to complete the steel pipe column extension operation.

[0014] The overall structure of the present invention is relatively simple, easy to install and use, with a wide range of adjustment applications, and the auxiliary extension is relatively reliable and stable. It is suitable for use as an auxiliary installation bracket for extending various steel frame structure columns in the construction field, or as a structural improvement of similar brackets. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the explosion structure of scheme 1 of the present invention.

[0016] Figure 2 yes Figure 1 A schematic diagram of the top structure of the implementation state, in which part of the locking plate is omitted.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the gear shaft of the present invention.

[0018] Figure 4 It is a structural schematic diagram of the angle steel connected to the electromagnetic chuck of the present invention.

[0019] Figure 5 It is a schematic diagram of the explosion structure of scheme 2 of the present invention.

[0020] Figure 6 It is a schematic diagram of the explosion structure of the improved solution of the pull plate of the present invention.

[0021] Figure 7 yes Figure 6 Schematic diagram of the pull plate assembly structure.

[0022] Figure 8 It is a schematic diagram of the explosion structure of the second improved solution for the pull plate of the present invention.

[0023] Fig. 9 yes Figure 8 Schematic diagram of the pull plate assembly structure.

[0024] The serial numbers and names in the figure are: 1. Angle steel, 101. Support plate, 102. Shaft hole, 103. Tooth pin hole, 2. Pull plate, 201. Strip tooth hole, 202. Sliding hole, 203. Bolt seat, 204. Boss, 205. Left section, 206. Middle section, 207. Right section, 208. Straight tooth surface, 3. Gear shaft, 301. Rotating shaft, 302. Transmission gear, 303. Wrench joint, 304. Pin hole, 4. Locking plate, 401. Tooth hole, 402. Stop notch, 5. Steel pipe column, 6. Electromagnetic suction cup, 7. Tooth pin, 8. Adjusting bolt. DETAILED DESCRIPTION

[0025] The present invention will now be further described with reference to the accompanying drawings.

[0026] like Figure 1-Figure 3 The figure shows an embodiment of scheme 1 of the present invention, wherein the auxiliary installation bracket for extending a steel pipe column comprises an angle steel 1 and a pull plate 2. A support plate 101 with an axial hole 102 is welded on the outer side of the angle steel, and the direction of the axial hole is consistent with the extending direction of the steel pipe column 5. Both ends of the pull plate are provided with strip-shaped tooth holes 201 whose length direction is consistent with the length direction of the plate, and straight teeth are provided on one side of the strip-shaped tooth holes. The mounting bracket also includes a locking plate 4 and a gear shaft 3 that cooperates with the bar-shaped tooth hole. One end of the gear shaft is a rotating shaft 301, which cooperates with the axial hole of the support plate to form a positioning rotation. The bar-shaped tooth holes at one end of the two pull plates are meshed with the transmission teeth 302 in the middle of the gear shaft, and the two pull plates form relative movement along their respective length directions as the transmission teeth rotate. A wrench joint 303 is provided at the other end of the gear shaft, and the locking plate is provided with a movable through-wrench joint and a tooth hole 401 that locks with the transmission teeth. A locking notch 402 that matches the outer side surface of the angle steel is provided on the side of the locking plate. When the locking plate cooperates with the outer side surface of the angle steel through the locking notch to form a relative fixation, the gear shaft and the pull plate are fixed relative to the angle steel.

[0027] like Figure 5 The second embodiment of the present invention is shown, which differs from the first embodiment in that the locking plate 4 of the first embodiment is eliminated and replaced by a tooth pin 7 for locking. Specifically, the strip-shaped tooth holes 201 of the two pull plates 2 corresponding to each support plate 101 of the angle steel 1 are locked and fixed with the support plate through tooth pins, that is, the support plate is provided with two tooth pin holes 103, the top of the tooth pin is limited to the top surface of the corresponding pull plate, and the tooth pin is simultaneously engaged with the strip-shaped tooth hole of the pull plate and the tooth pin hole of the support plate to form a plug-in lock, that is, the pull plate is fixed relative to the angle steel.

[0028] like Figure 3As shown, in order to further make the combination of the gear shaft 3 and the support plate 101 more reliable, the bottom end of the gear shaft is provided with a radially arranged latch hole 304, and the latch hole is connected to the latch limiter at the bottom surface of the support plate, thereby effectively preventing the gear shaft from falling off relative to the support plate of the angle steel 1, and the gear shaft connection is more reliable and stable. Similarly, the top end of the gear shaft can also be provided with a latch hole and connected to the latch, thereby forming an effective limit for the locking plate 4 or the pull plate 2, preventing the locking plate or the pull plate from falling off relative to the gear shaft.

[0029] The outer side surface of the angle steel 1 can also be evenly provided with a plurality of support plates 101 according to the length of the angle steel, and the pull plate 2 can be connected in the same manner as described above to improve the support stability of the extension auxiliary mounting bracket.

[0030] like Figure 4 As shown, in order to facilitate the installation and connection of the extension auxiliary mounting bracket, the outer side of the angle steel 1 can also be fixed with an electromagnetic suction cup 6. The electromagnetic suction cup is a prior art, that is, an electromagnetic coil is set in the suction cup and controlled by an external power supply. When it is turned on, the electromagnetic coil is used to realize the magnetic field to conduct magnetism to the mounting bracket, thereby realizing temporary fixation of the angle steel and the steel pipe column 5, which is convenient for the installation operation of the bracket. When the bracket is firmly connected or needs to be removed, the electromagnetic coil is turned off to cancel the suction of the electromagnetic suction cup, which can facilitate the removal operation of the bracket, saving time and effort.

[0031] like Figure 6 , Figure 7 The structure of the scheme 1 in which the length of the pull plate 2 is adjustable is shown, specifically: the pull plate includes two sections, one of which is provided with a sliding hole 202 at the end, and a protruding bolt seat 203 at the end of the sliding hole, and the other section is provided with a protruding convex seat 204 that slides with the sliding hole, and the direction in which the convex seat slides with the sliding hole is the direction in which the length of the pull plate is adjusted, the bolt seat is threadedly connected to the adjusting bolt 8, the adjusting bolt presses against the convex seat, and the direction in which the bolt presses against the convex seat as it rotates is consistent with the direction in which the convex seat slides relative to the sliding hole. Through this structure, the adjustment (fine adjustment) of the pull plate length can be easily achieved.

[0032] like Figure 8 , Fig. 9 The structure of the second scheme of the adjustable length of the pull plate 2 is shown, specifically: the pull plate includes three sections, namely the left section 205, the middle section 206, and the right section 207. One end of the left section and the right section is provided with a straight tooth surface 208, and the straight tooth surface of the left section is meshed with the straight tooth surface of the right section. After meshing, the left section and the right section are connected in a straight line. The middle section is slidably sleeved on the left section and the right section, and when the middle section slides to the junction of the left section and the right section, the left section and the right section remain in a meshing state. When the length of the pull plate needs to be adjusted, it is only necessary to move the middle section to the left section or the right section, and adjust the meshing length of the straight tooth surface of the left section and the right section, and then slide the middle section to the meshing point of the straight tooth surface of the left section and the right section, and the adjustment of the length of the pull plate is completed. When the left section and the right section are stretched relative to each other, the meshing action of the straight tooth surface will expand and tighten the middle section, so that the middle section is not easy to slide loose.

[0033] In combination with the embodiments of the above-mentioned scheme 1 and scheme 2, their specific docking use is described as follows. The method of using the embodiment of the scheme 1 is as follows: according to the number of corners of the steel pipe column 5 to be extended and connected, a corresponding number of angle steels 1 are selected. For example, the rectangular steel pipe column in the figure has four corners, and four pairs of angle steels are required. The support plate 101 of each angle steel is connected to the strip-shaped tooth holes 201 of the two pull plates 2 through a gear shaft 3, and the adjacent support plates of adjacent angle steels are connected through a pull plate. By rotating and adjusting the gear shafts on the support plates of each angle steel in turn, each gear shaft drives the corresponding two pull plates to form a length adjustment along their respective length directions until the pull plate drives the angle steel to form a pre-match at the docking position of the steel pipe column. At this time, each gear shaft is connected to the locking plate 4 in turn to be fixed; when the last gear shaft is connected to the locking plate, the gear shaft is locked in place and then the locking plate is locked and fixed. The above is to complete the auxiliary fixation of the steel pipe column extension by the mounting bracket. After the auxiliary fixation, the steel pipe column docking is welded. After welding, the locking plate, gear shaft, angle steel, and pull plate are removed to complete the steel pipe column extension operation.

[0034] When the gear shaft 3 rotates, the locking plate 4 is pre-movably connected to the spanner joint 303 of the gear shaft, that is, the locking plate is freely rotated relative to the spanner joint, and when the gear shaft is screwed into place, the tooth hole 401 of the locking plate is engaged with the gear shaft to form a lock. This facilitates the fast locking of the gear shaft after it is adjusted into place and is not easy to loosen.

[0035] The method of using the embodiment of scheme 2 is as follows: according to the number of corners to be connected to the steel pipe column 5, a corresponding number of angle steels 1 are selected, and a support plate 101 of each angle steel is connected to the strip-shaped tooth holes 201 of the two pull plates 2 through a gear shaft 3, and adjacent support plates of adjacent angle steels are connected through a pull plate, and the gear shafts 3 on the support plates of each angle steel are rotated and adjusted in sequence, and each gear shaft drives the two pull plates to form a length adjustment along their respective length directions, until the pull plate drives the angle steel and the steel pipe column to form a pre-match at the docking position of the connection, at this time, the support plate of each angle steel is fixed to the corresponding pull plate through a gear pin 7, and the auxiliary fixation of the steel pipe column extension by the installation bracket is completed, and the steel pipe column joint is welded after the auxiliary fixation, and the gear pin, gear shaft, angle steel, and pull plate are removed after welding to complete the steel pipe column extension operation.

[0036] The above contents are intended to illustrate the technical means of the present invention, but not to limit the technical scope of the present invention. Those skilled in the art can make obvious improvements to the present invention in combination with existing common knowledge, which also fall within the protection scope of the claims of the present invention.

Claims

1. A steel pipe column extension auxiliary mounting bracket, the mounting bracket comprising an angle steel (1) and a pull plate (2), characterized in that The outer side of the angle steel (1) is integrated with a support plate (101) with an axial hole (102), the direction of the axial hole is consistent with the length direction of the steel pipe column (5), and both ends of the pull plate are provided with strip-shaped tooth holes (201) whose length direction is consistent with the length direction of the plate, and straight teeth are provided on one side of the strip-shaped tooth hole; the mounting bracket also includes a locking plate (4) and a gear shaft (3) matched with the strip-shaped tooth hole, one end of the gear shaft is matched with the axial hole of the support plate to form a positioning rotation, and the strip-shaped tooth holes at one end of each of the two pull plates are aligned with the center of the gear shaft. The transmission teeth (302) of the two pull plates are meshed, and the two pull plates form relative movement along their respective length directions as the transmission teeth rotate. A wrench joint (303) is provided at the other end of the gear shaft and is connected to the locking plate. The locking plate is provided with a tooth hole (401) that is locked with the transmission teeth after passing through the gear shaft. A locking notch (402) that is matched with the outer side surface of the angle steel is provided on the side surface of the locking plate. When the locking plate is relatively fixed by matching with the outer side surface of the angle steel through the locking notch, the gear shaft and the pull plate are fixed relative to the angle steel.

2. A steel pipe column extension auxiliary mounting bracket, the mounting bracket comprising an angle steel (1) and a pull plate (2), characterized in that The outer side of the angle steel (1) is integrated with a support plate (101) with an axial hole (102), the direction of the axial hole is consistent with the length direction of the steel pipe column (5), and both ends of the pull plate are provided with strip-shaped tooth holes (201) whose length direction is consistent with the length direction of the plate, and straight teeth are provided on one side of the strip-shaped tooth hole; the mounting bracket also includes a tooth pin (7) and a gear shaft (3) matched with the strip-shaped tooth hole, one end of the gear shaft is matched with the axial hole of the support plate to form a positioning rotation, and the strip-shaped tooth holes at one end of each of the two pull plates are aligned with the middle of the gear shaft. The transmission teeth (302) are meshed, and the two pull plates form relative movement along their respective length directions as the transmission teeth rotate, and a wrench joint (303) is provided at the other end of the gear shaft; the strip-shaped tooth holes of the two pull plates corresponding to the support plate are locked and fixed with the support plate (101) through tooth pins, that is, the support plate is provided with a tooth pin hole (103) for inserting the tooth pin, and the top of the tooth pin is limited to the top surface of the pull plate, and the tooth pin is meshed with the strip-shaped tooth hole (201) of the pull plate and the tooth pin hole of the support plate to form a lock, that is, the pull plate is fixed relative to the angle steel.

3. The steel pipe column extension auxiliary installation bracket according to claim 1 or 2, characterized in that At least the bottom end of the gear shaft (3) is provided with a pin hole (304) arranged in the radial direction, and the pin hole is connected to the pin limiter and is located on the bottom surface of the support plate.

4. The steel pipe column extension auxiliary installation bracket according to claim 1 or 2, characterized in that At least two support plates (101) are evenly distributed on the outer side surface of the angle steel (1) along the lengthening direction.

5. The steel pipe column extension auxiliary installation bracket according to claim 1 or 2, characterized in that An electromagnetic suction cup (6) is fixedly provided on the outer side surface of the angle steel (1).

6. The steel pipe column extension auxiliary installation bracket according to claim 1 or 2, characterized in that The pull plate (2) is adjustable in length, that is, the pull plate comprises two sections, one section has a sliding hole (202) at the end thereof, and a protruding bolt seat (203) at the end thereof, and the other section has a protruding convex seat (204) at the end thereof that slidably cooperates with the sliding hole, and the direction in which the convex seat slidably cooperates with the sliding hole is the direction in which the length of the pull plate is adjusted, the bolt seat is threadedly connected to an adjusting bolt (8), the adjusting bolt presses against the convex seat, and the direction in which the bolt presses against the convex seat as it rotates is consistent with the direction in which the convex seat slides relative to the sliding hole.

7. The steel pipe column extension auxiliary installation bracket according to claim 1 or 2, characterized in that The pull plate (2) is adjustable in length, that is, the pull plate comprises three sections, namely a left section (205), a middle section (206), and a right section (207); one end of the left section and the right section are each provided with a straight tooth surface (208), and the straight tooth surface of the left section meshes with the straight tooth surface of the right section. After meshing, the left section and the right section are connected in a straight line, and the middle section is slidably sleeved on the left section and the right section, and when the middle section slides to the junction of the left section and the right section, the left section and the right section remain in a meshing connection state.

8. A method for using the steel pipe column extension auxiliary installation bracket as claimed in claim 1, characterized in that The method of use is as follows: according to the number of corners to be connected to the steel pipe column (5), a corresponding number of the angle steels (1) are selected; a support plate (101) of each angle steel is connected to the strip-shaped tooth holes (201) of the two pull plates (2) via a gear shaft (3); and adjacent support plates of adjacent angle steels are connected via a pull plate; by rotating and adjusting the gear shafts on the support plates of each angle steel in sequence, each gear shaft drives the two pull plates to form a length adjustment along their respective length directions until the pull plate drives the angle steel to form a pre-match at the connecting position of the steel pipe column; at this time, each gear shaft is connected to the locking plate (4) in sequence to form a fixation; when the last gear shaft is connected to the locking plate, the gear shaft is locked in place and then the locking plate is locked and fixed, thus completing the auxiliary fixation of the steel pipe column to the extension of the installation bracket; after the auxiliary fixation, the steel pipe column is welded at the connecting position; after welding, the locking plate, gear shaft, angle steel and pull plate are removed, thus completing the operation of extending the steel pipe column.

9. The method for using the steel pipe column extension auxiliary installation bracket according to claim 8 is characterized in that When the gear shaft (3) rotates, the locking plate (4) is pre-movably connected to the wrench joint (303) of the gear shaft, that is, the locking plate is freely rotated relative to the wrench joint, and when the gear shaft is screwed into place, the tooth hole (401) of the locking plate is meshed with the gear shaft to form a lock.

10. A method for using the steel pipe column extension auxiliary installation bracket as claimed in claim 2, characterized in that The method of use is as follows: a corresponding number of the angle steels (1) are selected according to the number of corners to be connected to the steel pipe column (5), a support plate (101) of each angle steel is connected to the strip-shaped tooth holes (201) of the two pull plates (2) via a toothed shaft (3), and adjacent support plates of adjacent angle steels are connected via a pull plate, and the toothed shafts on the support plates of each angle steel are rotated and adjusted in sequence, so that each toothed shaft drives the two pull plates to adjust their lengths along their respective length directions until the pull plates drive the angle steel to form a pre-match at the connecting position of the steel pipe column, at which time the support plates of each angle steel are fixed to the corresponding pull plates via the toothed pins (7), thus completing the auxiliary fixing of the steel pipe column by the installation bracket, and welding the connecting part of the steel pipe column after the auxiliary fixing, and removing the toothed pins, toothed shafts, angle steels, and pull plates after welding, thus completing the operation of connecting the steel pipe column.

Images