A vertical positioning device for a steel pipe column

Abstract

The application discloses a vertical positioning device for a steel pipe column and relates to the technical field of steel pipe column positioning. The vertical positioning device comprises a bottom fixing plate, positioning support mechanisms are arranged on the four corners of the bottom fixing plate, two displacement clamping mechanisms are arranged on the bottom fixing plate, the two displacement clamping mechanisms are symmetrically arranged on the bottom fixing plate, a drawing and clamping plate mechanism is arranged on the displacement clamping mechanism, a feeding driving mechanism is arranged on the side edge of the bottom fixing plate, a rotating ring is arranged on the bottom fixing plate, a deflection driving mechanism is arranged between the rotating ring and the bottom fixing plate, two deflection adjusting mechanisms are arranged on the rotating ring, the deflection adjusting mechanisms are connected with upper clamping plate mechanisms, the position of the bottom fixing plate can be adjusted and fixed through the positioning support mechanisms, the displacement clamping mechanisms can be driven through the feeding driving mechanism, the drawing and clamping plate mechanism can be clamped inside or outside the placement position, and the safety and convenience of geological sample detection are improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe column positioning, in particular to a steel pipe column vertical positioning device. Background Art

[0002] Steel pipe columns are made from single or multiple steel pipes through welding or machining, and come in various cross-sectional shapes, including round, square, and rectangular. They are not only used in steel structures but are also commonly found in large-scale projects like offshore platforms, bridges, and towers, as well as in industrial applications like machinery and equipment.

[0003] In the existing technology, the pre-lifting and adjusting of the lifting and adjusting components can adapt to steel pipe columns of different lengths, so that the vertical adjustment device can adapt to steel pipe columns of different lengths. Then, under the mechanical pressure correction of the two sets of pressure vertical adjustment components, the steel pipe columns can be corrected at one time. However, in the existing technology, on the one hand, the position angle of the bottom positioning plate cannot be adjusted, and it is not convenient to freely adjust the deflection angle of the steel pipe column. Therefore, the existing technology has a large room for improvement. Summary of the Invention

[0004] The present invention provides a vertical positioning device for a steel pipe column, which solves the problems raised in the above background technology.

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

[0006] A vertical positioning device for a steel pipe column comprises a bottom fixed plate, wherein the four corners of the bottom fixed plate are provided with a positioning support mechanism, the bottom fixed plate is provided with two displacement clamping mechanisms, the two displacement clamping mechanisms are symmetrically arranged on the bottom fixed plate, the displacement clamping mechanism is provided with a draw-out clamping mechanism, the side of the bottom fixed plate is provided with a feed drive mechanism, the bottom fixed plate is provided with a rotating ring, a deflection drive mechanism is provided between the rotating ring and the bottom fixed plate, two deflection adjustment mechanisms are provided on the rotating ring, the deflection adjustment mechanism is connected to the upper clamping mechanism, and the bottom fixed plate is provided with a spirit level; the positioning support mechanism is used to adjust the position of the bottom fixed plate, the feed drive mechanism is used to drive the displacement clamping mechanism, the deflection drive mechanism is used to drive the rotating ring to rotate, and the deflection adjustment mechanism is used to adjust the angle of the upper clamping mechanism, thereby adjusting the vertical state of the steel pipe column.

[0007] As a preferred technical solution of the present invention, the positioning support mechanism includes an externally threaded support sleeve threadedly connected to the bottom fixed plate, the upper side of the externally threaded support sleeve is fixedly connected to the first rotating handle, the bottom side of the externally threaded support sleeve is rotatably connected to the two first deflection axes, the first deflection axis is rotatably connected to the inner deflection ring at one end away from the externally threaded support sleeve, the outer side of the inner deflection ring is rotatably connected to the two second deflection axes, the two second deflection axes are symmetrically arranged on the inner deflection ring, the first deflection axis and the second deflection axis are perpendicular to each other, the second deflection axis is rotatably connected to the outer support ring at one end away from the inner deflection ring, the internal thread of the externally threaded support sleeve is connected to the feed rod, and the top of the feed rod is fixedly connected to the second rotating handle.

[0008] As a preferred technical solution of the present invention, the position shifting clamping mechanism includes an internal threaded sleeve rotatably connected to the bottom fixed plate, the outer side of the internal threaded sleeve is fixedly connected to the first bevel gear, the internal thread of the internal threaded sleeve is connected to the feed threaded rod, one end of the feed threaded rod located in the bottom fixed plate is rotatably connected to the feed clamping plate, the feed clamping plate is fixedly connected to the feed slide, the feed slide passes through the bottom fixed plate, the feed slide and the bottom fixed plate are slidably connected, a feed clamping plate groove is provided on the bottom fixed plate at a position corresponding to the feed clamping plate, a vertical placement groove is provided vertically on the feed clamping plate, and a number of size scales are provided on the feed slide.

[0009] As a preferred technical solution of the present invention, the card extraction and placement mechanism includes a placement card, the placement card is fixedly connected to the end baffle, and the cross-section of the placement card and the vertical placement slot are the same.

[0010] As a preferred technical solution of the present invention, the feed drive mechanism includes a motor seat fixed to the side of the bottom fixed plate, a double-headed motor is provided on the motor seat, the output shaft of the double-headed motor is fixedly connected to the two first drive shafts, the end of the first drive shaft away from the double-headed motor is fixedly connected to the second bevel gear, the second bevel gear engages with the third bevel gear, the third bevel gear is coaxially fixedly connected to the second drive shaft, the second drive shaft is rotatably connected to the drive shaft seat, the drive shaft seat and the bottom fixed plate are fixedly connected, the end of the second drive shaft away from the third bevel gear is fixedly connected to the fourth bevel gear, and the fourth bevel gear is engaged with the first bevel gear.

[0011] As a preferred technical solution of the present invention, the deflection drive mechanism includes two mounting side plates fixed to the bottom fixed plate, one of the mounting side plates is provided with a deflection motor, the output shaft of the deflection motor is fixedly connected to the worm shaft, the worm shaft and the mounting side plate are rotatably connected, the worm shaft is coaxially fixedly connected to the worm, the outer side of the rotating ring is fixedly connected to the worm gear, the worm gear and the worm are meshed, an angle scale is provided on the bottom fixed plate, and an angle pointer is provided on the rotating ring.

[0012] As a preferred technical solution of the present invention, the deflection adjustment mechanism includes a first deflection seat fixed on a rotating ring, the first deflection seat is rotatably connected to an electric telescopic rod, and the end of the electric telescopic rod away from the first deflection seat is rotatably connected to a second deflection seat.

[0013] As a preferred technical solution of the present invention, the upper clamping plate mechanism includes a fixing ring fixedly connected to the second deflection seat, the fixing ring is threadedly connected to two rotating threaded rods, the two rotating threaded rods are symmetrically arranged on the fixing ring, the end of the rotating threaded rod away from the fixing ring is fixedly connected to the third rotating handle, the rotating threaded rod is threadedly connected to the feed plate, the feed plate is fixedly connected to the fixed slide rod, the fixed slide rod passes through the fixing ring, the fixed slide rod and the fixing ring are slidably connected, the end of the fixed slide rod away from the feed plate is fixedly connected to the upper clamping plate, and two positioning contact balls are provided vertically on the upper clamping plate.

[0014] The present invention has the following benefits:

[0015] By setting up a positioning support mechanism, the position of the bottom fixed plate can be adjusted and fixed, and the displacement clamping mechanism can be driven by the feed drive mechanism, and the clamping mechanism can be clamped inside or outside the placement position, thereby facilitating the positioning of the bottom fixed plate. The deflection drive mechanism can drive the rotating ring to rotate and shift, and the deflection adjustment mechanism can adjust the deflection angle of the upper clamping mechanism, thereby adaptively adjusting the angle of the steel pipe column. The upper clamping mechanism can contact and clamp the steel pipe column, thereby improving the safety and convenience of geological sample detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a structural schematic diagram of a vertical positioning device for a steel pipe column from the first perspective.

[0018] Figure 2 This is a structural schematic diagram of a steel pipe column vertical positioning device from the second perspective.

[0019] Figure 3 This is a structural schematic diagram of a steel pipe column vertical positioning device from the third perspective.

[0020] Figure 4 This is a structural schematic diagram of a steel pipe column vertical positioning device from the fourth perspective.

[0021] In the figure: 1. bottom fixing plate; 2. positioning support mechanism; 201. external thread support sleeve; 202. first rotating handle; 203. first deflection axis; 204. inner deflection ring; 205. second deflection axis; 206. outer support ring; 207. feed plug rod; 208. second rotating handle; 3. position change clamping mechanism; 301. internal thread sleeve; 302. first bevel gear; 303. feed thread rod; 304. feed clamping plate; 305. feed slide; 306. feed clamping plate slot; 307. vertical placement slot; 4. clamping plate extraction and placement mechanism; 401. clamping plate placement; 402. end stopper; 5. feed drive mechanism; 501. motor seat; 502. double-head motor Machine; 503, first drive shaft; 504, second bevel gear; 505, third bevel gear; 506, second drive shaft; 507, drive shaft seat; 508, fourth bevel gear; 6, rotating ring; 7, deflection drive mechanism; 701, mounting side plate; 702, deflection motor; 703, worm shaft; 704, worm; 705, worm gear; 8, deflection adjustment mechanism; 801, first deflection seat; 802, electric telescopic rod; 803, second deflection seat; 9, upper clamping plate mechanism; 901, fixing ring; 902, rotating threaded rod; 903, third rotating handle; 904, feed plate; 905, fixed slide rod; 906, upper clamping plate; 907, positioning contact ball. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] Example 1, please refer to Figures 1-4 , a vertical positioning device for a steel pipe column comprises a bottom fixed plate 1, and the four corners of the bottom fixed plate 1 are each provided with a positioning and supporting mechanism 2, the bottom fixed plate 1 is provided with two displacement clamping mechanisms 3, the two displacement clamping mechanisms 3 are symmetrically arranged on the bottom fixed plate 1, the displacement clamping mechanism 3 is provided with a drawing and releasing clamping mechanism 4, the side of the bottom fixed plate 1 is provided with a feeding driving mechanism 5, the bottom fixed plate 1 is provided with a rotating ring 6, a deflection driving mechanism 7 is provided between the rotating ring 6 and the bottom fixed plate 1, two deflection adjusting mechanisms 8 are provided on the rotating ring 6, the deflection adjusting mechanism 8 is connected to the upper clamping mechanism 9, and a spirit level is provided on the bottom fixed plate 1; the positioning and supporting mechanism 2 is used to adjust the position of the bottom fixed plate 1, the feeding driving mechanism 5 is used to drive the displacement clamping mechanism 3, the deflection driving mechanism 7 is used to drive the rotating ring 6 to rotate, and the deflection adjusting mechanism 8 is used to adjust the angle of the upper clamping mechanism 9, thereby adjusting the vertical state of the steel pipe column.

[0024] The positioning support mechanism 2 includes an externally threaded support sleeve 201 threadedly connected to the bottom fixed plate 1, the upper side of the externally threaded support sleeve 201 is fixedly connected to the first rotating handle 202, the bottom side of the externally threaded support sleeve 201 is rotatably connected to two first deflection axes 203, the first deflection axis 203 is rotatably connected to the inner deflection ring 204 at one end away from the externally threaded support sleeve 201, the outer side of the inner deflection ring 204 is rotatably connected to two second deflection axes 205, the two second deflection axes 205 are symmetrically arranged on the inner deflection ring 204, the first deflection axis 203 and the second deflection axis 205 are perpendicular to each other, the second deflection axis 205 is rotatably connected to the outer support ring 206 at one end away from the inner deflection ring 204, the internal thread of the externally threaded support sleeve 201 is connected to the feed rod 207, and the top of the feed rod 207 is fixedly connected to the second rotating handle 208.

[0025] Specifically, rotating the first rotating handle 202 can drive the external threaded support sleeve 201 to rotate, thereby controlling the position of the inner deflection ring 204 and the outer support ring 206. Since both the inner deflection ring 204 and the outer support ring 206 can be deflected, it can be ensured that the outer support ring 206 is always in positive contact with the ground for support, thereby adjusting the height and angle of the bottom fixed plate 1. At this time, rotating the second rotating handle 208 can drive the feed rod 207 to feed, thereby inserting it into the ground, so as to ensure that the position of the bottom fixed plate 1 relative to the ground does not change.

[0026] The shifting clamping mechanism 3 includes an internal threaded sleeve 301 rotatably connected to the bottom fixed plate 1, the outer side of the internal threaded sleeve 301 is fixedly connected to the first bevel gear 302, the internal thread of the internal threaded sleeve 301 is connected to the feed threaded rod 303, one end of the feed threaded rod 303 located inside the bottom fixed plate 1 is rotatably connected to the feed clamping plate 304, the feed clamping plate 304 is fixedly connected to the feed slide 305, the feed slide 305 passes through the bottom fixed plate 1, and the feed slide 305 is slidably connected to the bottom fixed plate 1. A feed clamping plate groove 306 is provided on the bottom fixed plate 1 at a position corresponding to the feed clamping plate 304, a vertical placement groove 307 is provided vertically on the feed clamping plate 304, and a plurality of size scales are provided on the feed slide 305. The drawing and releasing clamping plate mechanism 4 includes a placement clamping plate 401, which is fixedly connected to the end stopper 402, and the cross-section of the placement clamping plate 401 and the vertical placement groove 307 are the same. The feed drive mechanism 5 includes a motor base 501 fixed to the side of the bottom fixed plate 1, and a double-headed motor 502 is provided on the motor base 501. The output shaft of the double-headed motor 502 is fixedly connected to the two first drive shafts 503, and the end of the first drive shaft 503 away from the double-headed motor 502 is fixedly connected to the second bevel gear 504, the second bevel gear 504 engages with the third bevel gear 505, and the third bevel gear 505 is coaxially fixedly connected to the second drive shaft 506, the second drive shaft 506 is rotatably connected to the drive shaft base 507, the drive shaft base 507 is fixedly connected to the bottom fixed plate 1, and the end of the second drive shaft 506 away from the third bevel gear 505 is fixedly connected to the fourth bevel gear 508, and the fourth bevel gear 508 is engaged with the first bevel gear 302.

[0027] Specifically, turning on the double-headed motor 502 can drive the first drive shaft 503 to rotate, and the rotation of the first drive shaft 503 will drive the second bevel gear 504 to rotate, and then drive the third bevel gear 505 to rotate, and the rotation of the third bevel gear 505 will drive the second drive shaft 506 to rotate, and the rotation of the second drive shaft 506 will drive the fourth bevel gear 508 to rotate, and the rotation of the fourth bevel gear 508 will drive the first bevel gear 302 to rotate, thereby driving the internal threaded sleeve 301 to rotate, thus driving the feed threaded rod 303 to feed and retract, and then drive the feed on both sides. The clamping plate 304 is fed and displaced synchronously. When the position of the bottom fixed plate 1 has been determined, the steel pipe column can be clamped and positioned by the feeding clamping plate 304. When the position of the bottom fixed plate 1 has not been fixed, the placement clamping plate 401 is placed in the vertical placement groove 307. At this time, the placement clamping plate 401 is clamped on the inner wall or outer wall of the deep well according to the actual situation, thereby realizing auxiliary positioning of the bottom fixed plate 1. By selecting end baffles 402 of different sizes, the steel pipe column can also be contacted and positioned through the inner side edge of the end baffle 402.

[0028] Example 2, continue to refer to Figures 1-4In this embodiment of the present invention, the deflection drive mechanism 7 comprises two mounting side plates 701 fixed to the bottom fixing plate 1. One of the mounting side plates 701 is provided with a deflection motor 702. The output shaft of the deflection motor 702 is fixedly connected to a worm shaft 703, which is rotatably connected to the mounting side plate 701. The worm shaft 703 is coaxially fixedly connected to a worm 704. The outer side of the rotating ring 6 is fixedly connected to a worm gear 705, which meshes with the worm 704. The bottom fixing plate 1 is provided with an angle scale, and the rotating ring 6 is provided with an angle pointer. The deflection adjustment mechanism 8 comprises a first deflection seat 801 fixed to the rotating ring 6. The first deflection seat 801 is rotatably connected to an electric telescopic rod 802. The end of the electric telescopic rod 802, which is away from the first deflection seat 801, is rotatably connected to a second deflection seat 803. The upper clamping plate mechanism 9 includes a fixing ring 901 fixedly connected to the second deflection seat 803, the fixing ring 901 is threadedly connected to two rotating threaded rods 902, the two rotating threaded rods 902 are symmetrically arranged on the fixing ring 901, and the rotating threaded rod 902 is fixedly connected to the third rotating handle 903 at one end away from the fixing ring 901, and the rotating threaded rod 902 is threadedly connected to the feed plate 904, and the feed plate 904 is fixedly connected to the fixed slide 905, and the fixed slide 905 passes through the fixing ring 901, and the fixed slide 905 and the fixing ring 901 are slidingly connected, and the fixed slide 905 is fixedly connected to the upper clamping plate 906 at one end away from the feed plate 904, and two positioning contact balls 907 are provided vertically on the upper clamping plate 906.

[0029] Specifically, turning on the electric telescopic rod 802 can adjust the height and deflection angle of the fixed ring 901, and the third rotating handle 903 can drive the rotating threaded rod 902 to rotate, thereby driving the feed plate 904 to feed, and then driving the fixed slide rod 905 and the upper clamping plate 906 to feed, and cooperating with turning on the deflection motor 702, the rotation of the output shaft of the deflection motor 702 will drive the worm shaft 703 to rotate, and the rotation of the worm shaft 703 will drive the worm 704 to rotate, and the rotation of the worm 704 will drive the worm wheel 705 to rotate, thereby driving the rotating ring 6 to rotate, so as to adjust the offset angle of the upper clamping plate 906, thereby ensuring that the positioning contact balls 907 on the upper clamping plates 906 on both sides are in contact with the surface of the steel pipe column, so as to ensure that the steel pipe column is positioned and installed at the specified vertical angle.

[0030] During the implementation of the present invention, the positioning support mechanism 2 is first adjusted according to the actual situation, and then the position of the bottom fixed plate 1 is adjusted and fixed. At the same time, the feed drive mechanism 5 is turned on to drive the displacement clamping mechanism 3 to feed and shift, so that the steel pipe column can be contact-limited. Similarly, when a deep well has been excavated, the position of the extraction and release clamping mechanism 4 can be adjusted under the drive of the displacement clamping mechanism 3, and the position of the bottom fixed plate 1 can be positioned on the inner wall or outer wall of the deep well. At this time, the rotating ring 6 can be driven to rotate by turning on the deflection drive mechanism 7, and the deflection adjustment mechanism 8 can be used to adjust the deflection angle of the upper clamping mechanism 9, so that the steel pipe column passes through the upper clamping mechanism 9 and the displacement clamping mechanism 3 to vertically position the steel pipe column.

[0031] The present invention can adjust and fix the position of the bottom fixed plate 1 by setting a positioning support mechanism 2, and can drive the displacement clamping mechanism 3 through the feed drive mechanism 5, and can be clamped inside or outside the placement position in conjunction with the extraction and release clamping mechanism 4, thereby facilitating the positioning of the bottom fixed plate 1, and can drive the rotating ring 6 to rotate and shift through the deflection drive mechanism 7, and can adjust the deflection angle of the upper clamping mechanism 9 through the deflection adjustment mechanism 8, thereby adaptively adjusting the angle of the steel pipe column, and can contact and clamp the steel pipe column through the upper clamping mechanism 9, thereby improving the safety and convenience of geological sample detection.

[0032] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A vertical positioning device for a steel pipe column, comprising a bottom fixing plate, characterized in that: The four corners of the bottom fixed plate are provided with a positioning support mechanism, the bottom fixed plate is provided with two shifting clamping mechanisms, the two shifting clamping mechanisms are symmetrically arranged on the bottom fixed plate, the shifting clamping mechanism is provided with a drawing and releasing clamping plate mechanism, the side of the bottom fixed plate is provided with a feed driving mechanism, the bottom fixed plate is provided with a rotating ring, a deflection driving mechanism is provided between the rotating ring and the bottom fixed plate, two deflection adjustment mechanisms are provided on the rotating ring, the deflection adjustment mechanism is connected to the upper clamping plate mechanism, and a spirit level is provided on the bottom fixed plate; the positioning support mechanism is used to adjust the position of the bottom fixed plate, the feed driving mechanism is used to drive the shifting clamping mechanism, the deflection driving mechanism is used to drive the rotating ring to rotate, and the deflection adjustment mechanism is used to adjust the angle of the upper clamping plate mechanism, thereby adjusting the vertical state of the steel pipe column; The positioning support mechanism includes an externally threaded support sleeve threadedly connected to the bottom fixed plate, the upper side of the externally threaded support sleeve is fixedly connected to the first rotating handle, the bottom side of the externally threaded support sleeve is rotatably connected to the two first deflection shafts, the first deflection shaft is rotatably connected to the inner deflection ring at one end away from the externally threaded support sleeve, the outer side of the inner deflection ring is rotatably connected to the two second deflection shafts, the two second deflection shafts are symmetrically arranged on the inner deflection ring, the first deflection shaft and the second deflection shaft are perpendicular to each other, the end of the second deflection shaft is rotatably connected to the outer support ring at one end away from the inner deflection ring, the internal thread of the externally threaded support sleeve is connected to the feed rod, and the top of the feed rod is fixedly connected to the second rotating handle; The deflection drive mechanism includes two mounting side plates fixed to the bottom fixed plate, one of the mounting side plates is provided with a deflection motor, the output shaft of the deflection motor is fixedly connected to a worm shaft, the worm shaft and the mounting side plate are rotatably connected, the worm shaft is coaxially fixedly connected to a worm, the outer side of a rotating ring is fixedly connected to a worm gear, the worm gear and the worm are meshed, an angle scale is provided on the bottom fixed plate, and an angle pointer is provided on the rotating ring; The deflection adjustment mechanism includes a first deflection seat fixed on the rotating ring, the first deflection seat is rotatably connected to the electric telescopic rod, and the end of the electric telescopic rod away from the first deflection seat is rotatably connected to the second deflection seat; The upper clamping plate mechanism includes a fixing ring fixedly connected to the second deflection seat.

2. The vertical positioning device for a steel pipe column according to claim 1, characterized in that: The shifting clamping mechanism includes an internal threaded sleeve rotatably connected to the bottom fixed plate, the outer side of the internal threaded sleeve is fixedly connected to the first bevel gear, the internal thread of the internal threaded sleeve is connected to the feed threaded rod, one end of the feed threaded rod located in the bottom fixed plate is rotatably connected to the feed clamping plate, the feed clamping plate is fixedly connected to the feed slide bar, the feed slide bar passes through the bottom fixed plate, the feed slide bar and the bottom fixed plate are slidably connected, a feed clamping plate groove is provided on the bottom fixed plate at a position corresponding to the feed clamping plate, a vertical placement groove is provided vertically on the feed clamping plate, and a plurality of size scales are provided on the feed slide bar.

3. The vertical positioning device for a steel pipe column according to claim 2, characterized in that: The card plate extraction and placement mechanism includes a placement card plate, which is fixedly connected to the end baffle, and the placement card plate and the vertical placement slot have the same cross section.

4. The vertical positioning device for a steel pipe column according to claim 2, characterized in that: The feed drive mechanism includes a motor seat fixed to the side of the bottom fixed plate, a double-headed motor is provided on the motor seat, the output shaft of the double-headed motor is fixedly connected to the two first drive shafts, the end of the first drive shaft away from the double-headed motor is fixedly connected to the second bevel gear, the second bevel gear meshes with the third bevel gear, the third bevel gear is coaxially fixedly connected to the second drive shaft, the second drive shaft is rotatably connected to the drive shaft seat, the drive shaft seat and the bottom fixed plate are fixedly connected, the end of the second drive shaft away from the third bevel gear is fixedly connected to the fourth bevel gear, and the fourth bevel gear is meshed with the first bevel gear.

5. The vertical positioning device for a steel pipe column according to claim 1, characterized in that: The fixing ring is threadedly connected to two rotating threaded rods, and the two rotating threaded rods are symmetrically arranged on the fixing ring. The end of the rotating threaded rod away from the fixing ring is fixedly connected to the third rotating handle. The rotating threaded rod is threadedly connected to the feed plate. The feed plate is fixedly connected to the fixed slide rod. The fixed slide rod passes through the fixing ring. The fixed slide rod and the fixing ring are slidably connected. The end of the fixed slide rod away from the feed plate is fixedly connected to the upper clamping plate. Two positioning contact balls are provided vertically on the upper clamping plate.

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