Adjustable large-section steel beam anti-toppling device and using method thereof

Abstract

The invention discloses an adjustable large-section steel beam anti-toppling device and a using method thereof. The adjustable large-section steel beam anti-toppling device comprises a supporting base, supporting inclined rods, an upper flange supporting transverse rod and a lower flange supporting transverse rod. The bottom face of the supporting base is attached to the ground, and the top face of the supporting base is an adjustable inclined face. The supporting inclined rod is installed on the top face of the supporting base, one end of the upper flange supporting cross rod is movably connected to the upper portion of the supporting inclined rod, and the other end of the upper flange supporting cross rod horizontally extends to the large-section H-shaped steel beam and is connected with an upper flange of the large-section H-shaped steel beam in a matched mode. One end of the lower flange supporting cross rod is movably connected to the lower portion of the supporting inclined rod, and the other end of the lower flange supporting cross rod horizontally extends to the large-section H-shaped steel beam and is connected with a lower flange of the large-section H-shaped steel beam in a matched mode. The invention relates to the technical field of building steel structure engineering, and can solve the problems that in the prior art, the safety for preventing a large-section H-shaped steel beam from toppling and jacking is poor, and use is inconvenient.

Description

Technical Field

[0001] The invention relates to the technical field of building steel structure engineering, and in particular to an adjustable large-section steel beam anti-dumping device and a use method thereof. Background Art

[0002] In recent years, large-section H-shaped steel beams have been widely used in the construction field. When they are stacked in the yard, there is often a risk of overturning, and they need to be supported. The traditional anti-overturning measure for large-section H-shaped steel beams is to use materials available on the construction site, such as wood and square tubes, and use a triangular support method to support them between the upper flange of the steel beam and the ground on the side.

[0003] The existing large-section H-beam anti-tipping and top-returning methods have high requirements for the top-returning materials. Long top-returning materials will cause the supporting points on the ground to slip. The lower supporting points of the top-returning materials that are too short may not be able to effectively contact and support the ground, thus affecting the safety of the top-returning. It is usually necessary to measure and cut the top-returning materials according to the specifications of the large-section H-beam to ensure the stable support of the top-returning materials on the ground, which is inconvenient to use. Therefore, it is necessary to provide an adjustable large-section steel beam anti-tipping device and a method of use thereof, which can solve the problems of poor safety and inconvenience in the anti-tipping and top-returning of large-section H-beams in the existing technology. Summary of the invention

[0004] The purpose of the present invention is to provide an adjustable large-section steel beam anti-dumping device and a method of using the same, which can solve the problems of poor safety and inconvenience in the anti-dumping and top-up of large-section H-shaped steel beams in the prior art.

[0005] The present invention is achieved in that:

[0006] An adjustable large-section steel beam anti-tilting device comprises a support base, a support diagonal rod, an upper flange support cross rod and a lower flange support cross rod; the bottom surface of the support base is fitted on the ground beside the large-section H-shaped steel beam, and the top surface of the support base is an adjustable inclined surface; the lower end of the support diagonal rod is fixedly installed on the top surface of the support base, so that the support diagonal rod is adjustably tilted beside the upper flange and the lower flange of the large-section H-shaped steel beam, and the support diagonal rod is at the edge of the upper flange of the large-section H-shaped steel beam. The horizontal distance is smaller than the horizontal distance between the supporting diagonal bar and the edge of the lower flange of the large-section H-shaped steel beam; one end of the upper flange supporting cross bar is movably connected to the upper part of the supporting diagonal bar, and the other end of the upper flange supporting cross bar extends horizontally toward the large-section H-shaped steel beam, and is matched and connected with the upper flange of the large-section H-shaped steel beam; one end of the lower flange supporting cross bar is movably connected to the lower part of the supporting diagonal bar, and the other end of the lower flange supporting cross bar extends horizontally toward the large-section H-shaped steel beam, and is matched and connected with the lower flange of the large-section H-shaped steel beam.

[0007] The support base includes a bottom plate, an adjustment plate and a bottom support rod; one end of the bottom plate is rotatably and adjustably connected to one end of the adjustment plate, the lower end of the bottom support rod is fixed to the bottom plate, and the upper end of the bottom support rod passes through the adjustment plate upward; when the bottom support rod is locked on the adjustment plate, the adjustment plate can be tilted in an inclined plane, and the lower end of the supporting oblique rod is vertically connected to the adjustment plate.

[0008] An upper flange support base is provided at one end of the upper flange support cross bar close to the large-section H-shaped steel beam. The upper flange support base is a C-shaped structure with one end open, and the opening width of the C-shaped structure matches the thickness of the upper flange of the large-section H-shaped steel beam, so that the upper flange support base is matched and clamped at the edge of the upper flange of the large-section H-shaped steel beam.

[0009] An upper flange support fixing buckle is arranged at one end of the upper flange support cross bar away from the large-section H-shaped steel beam, and the upper flange support fixing buckle is adjustably connected between the upper flange support cross bar and the upper part of the supporting diagonal bar.

[0010] The upper flange support fixing buckle includes a first clamp and a second clamp, the first clamp is clamped on the upper flange support cross bar, the second clamp is clamped on the upper part of the support diagonal bar, and the first clamp is movably connected to the second clamp.

[0011] The lower flange support cross bar is provided with a lower flange support base at one end close to the large-section H-shaped steel beam. The lower flange support base is a C-shaped structure with one end open, and the opening width of the C-shaped structure matches the thickness of the lower flange of the large-section H-shaped steel beam, so that the lower flange support base is matched and clamped at the edge of the lower flange of the large-section H-shaped steel beam.

[0012] A lower flange support fixing buckle is arranged at one end of the lower flange support cross bar away from the large-section H-shaped steel beam, and the lower flange support fixing buckle is adjustably connected between the lower flange support cross bar and the lower part of the supporting diagonal bar.

[0013] The lower flange support fixing buckle includes a third hoop and a fourth hoop, the third hoop is engaged with the lower flange support cross bar, the fourth hoop is engaged with the lower part of the support diagonal bar, and the third hoop and the fourth hoop are movably connected.

[0014] A method for using an adjustable large-section steel beam anti-dumping device comprises the following steps:

[0015] Step 1: According to the top-down requirement of the large-section H-shaped steel beam to be top-down, place the bottom surface of the support base on the ground beside the large-section H-shaped steel beam, and adjust the top surface of the support base to be in an inclined state, so that the support diagonal rod is tilted and set beside the large-section H-shaped steel beam;

[0016] Step 2: Connect the lower flange support cross bar horizontally between the lower part of the support diagonal bar and the lower flange of the large-section H-shaped steel beam;

[0017] Step 3: Connect the upper flange support cross bar horizontally between the upper part of the support diagonal bar and the upper flange of the large-section H-shaped steel beam.

[0018] In the step 1, the bottom plate of the support base is attached to the ground beside the large-section H-shaped steel beam, and the adjustment plate of the support base is rotated to make the adjustment plate in an inclined state, so that the support diagonal rod is tilted and set beside the large-section H-shaped steel beam, and the adjustment plate is fixed by the bottom support rod;

[0019] In the step 2, the lower flange support fixing buckle is clamped on the lower flange support cross bar through the third clamping hoop, one end of the lower flange support cross bar is clamped on the lower part of the support diagonal bar through the fourth clamping hoop, the lower flange support cross bar is rotated to a horizontal state, and the other end of the lower flange support cross bar is clamped at the edge of the lower flange of the large-section H-shaped steel beam through the lower flange support base, and the third clamping hoop and the fourth clamping hoop are locked;

[0020] In the step 3, the upper flange support fixing buckle is clamped on the upper flange support cross bar through the first clamp, one end of the upper flange support cross bar is clamped on the upper part of the supporting diagonal bar through the second clamp, the upper flange support cross bar is rotated to a horizontal state, and the other end of the upper flange support cross bar is clamped at the upper flange edge of the large-section H-shaped steel beam through the upper flange support base, and the first clamp and the second clamp are locked.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention is provided with a support base, a lower flange support cross bar, a support diagonal bar and an upper flange support cross bar. The upper flange support cross bar and the lower flange support cross bar are respectively horizontally supported between the upper and lower flanges of the large-section H-shaped steel beam and the support diagonal bar, so that the load of the large-section H-shaped steel beam is transferred to the support diagonal bar, and then transferred to the ground through the support diagonal bar and the support base. The connection nodes between the support base, the lower flange support cross bar, the support diagonal bar and the upper flange support cross bar have high adjustment flexibility, and can provide stable, reliable, and conveniently disassembled anti-dumping support for the large-section H-shaped steel beam.

[0023] 2. Since the present invention is provided with a supporting diagonal rod and a supporting base, the adjusting plate can rotate relative to the bottom plate, so that the inclination angle of the supporting diagonal rod can be flexibly adjusted according to the cross-sectional size of the large-section H-shaped steel beam, and it can be stably fitted to the ground through the bottom plate. The stability and reliability of the ground support point are high, and the adaptability to large-section H-shaped steel beams of different specifications is improved while ensuring the safe return to the top of the large-section H-shaped steel beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the use of the adjustable large-section steel beam anti-dumping device of the present invention;

[0025] Figure 2 It is a front view of the use of the adjustable large-section steel beam anti-dumping device of the present invention.

[0026] In the figure, 1 is the bottom plate, 2 is the adjustment plate, 3 is the bottom support rod, 4 is the lower flange support fixing buckle, 5 is the lower flange support cross bar, 6 is the lower flange support base, 7 is the supporting diagonal rod, 8 is the upper flange support fixing buckle, 9 is the upper flange support cross bar, 10 is the upper flange support base, and 11 is the large-section H-shaped steel beam. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Please see attached Figure 1 and attached Figure 2 , an adjustable large-section steel beam anti-dumping device, comprising a support base, a support diagonal rod 7, an upper flange support cross bar 9 and a lower flange support cross bar 5; the bottom surface of the support base is fitted on the ground beside the large-section H-shaped steel beam 11, and the top surface of the support base is an adjustable inclined surface; the lower end of the support diagonal rod 7 is fixedly installed on the top surface of the support base, so that the support diagonal rod 7 is adjustably inclined and arranged beside the upper flange and the lower flange of the large-section H-shaped steel beam 11, and the support diagonal rod 7 is horizontal with the upper flange edge of the large-section H-shaped steel beam 11 The distance is smaller than the horizontal distance between the supporting diagonal rod 7 and the lower flange edge of the large-section H-shaped steel beam 11; one end of the upper flange supporting cross bar 9 is movably connected to the upper part of the supporting diagonal rod 7, and the other end of the upper flange supporting cross bar 9 extends horizontally toward the large-section H-shaped steel beam 11, and is matched and connected with the upper flange of the large-section H-shaped steel beam 11; one end of the lower flange supporting cross bar 5 is movably connected to the lower part of the supporting diagonal rod 7, and the other end of the lower flange supporting cross bar 5 extends horizontally toward the large-section H-shaped steel beam 11, and is matched and connected with the lower flange of the large-section H-shaped steel beam 11.

[0029] The bottom surface of the support base is in surface contact with the ground, which has a larger contact area and good anti-slip effect compared to the prior art in which the lower end of the return rod is directly supported on the ground, thereby ensuring the reliability and stability of the ground return support point. At the same time, the top surface of the support base is an inclined surface, and the inclined surface angle can be adjusted according to the cross-sectional size of the large-section H-shaped steel beam 11, so that the inclination angle of the support inclined rod 7 and the spacing between it and the large-section H-shaped steel beam 11 can meet the optimal load transfer requirements, thereby achieving reliable transfer of the load of the large-section H-shaped steel beam 11 to the ground, ensuring the safety of the return, and having good adaptability and versatility to large-section H-shaped steel beams 11 of different specifications.

[0030] The upper flange support cross bar 9 and the lower flange support cross bar 5 are used to horizontally support the upper and lower flanges of the large-section H-shaped steel beam 11, and are used to transfer the load of the large-section H-shaped steel beam 11 to the supporting diagonal bar 7 and then to the ground, thereby ensuring the placement stability of the large-section H-shaped steel beam 11.

[0031] Preferably, a plurality of adjustable large-section steel beam anti-dumping devices of the present invention can be installed at intervals along the length direction of the large-section H-shaped steel beam 11 to ensure the overall stability of the large-section H-shaped steel beam 11.

[0032] Please see attached Figure 1 and attached Figure 2 The support base includes a bottom plate 1 (as the bottom surface of the support base), an adjustment plate 2 (as the top surface of the support base) and a bottom support rod 3; one end of the bottom plate 1 is rotatably and adjustably connected to one end of the adjustment plate 2 through a rotating shaft, the lower end of the bottom support rod 3 is fixed on the bottom plate 1, and the upper end of the bottom support rod 3 penetrates the adjustment plate 2 upward; when the bottom support rod 3 is locked on the adjustment plate 2, the adjustment plate 2 can be inclined, and the lower end of the supporting inclined rod 7 is vertically connected to the adjustment plate 2.

[0033] The sizes of the base plate 1 and the adjustment plate 2 can be adaptively adjusted according to actual support requirements. The lower end of the bottom support rod 3 is vertically fixed on the base plate 1, so that the bottom support rod 3 vertically penetrates the adjustment plate 2. Two nuts can be screwed on the bottom support rod 3 through thread matching. The two nuts are respectively located above and below the adjustment plate 2. The height adjustment of the two nuts on the bottom support rod 3 is used to realize the rotation adjustment of the adjustment plate 2 relative to the base plate 1. The two nuts push up and press down to fix the adjustment plate 2, thereby realizing the angle adjustment and fixation of the supporting diagonal rod 7 on the adjustment plate 2.

[0034] Please see attached Figure 1 and attached Figure 2 An upper flange support base 10 is provided at one end of the upper flange support cross bar 9 close to the large-section H-shaped steel beam 11. The upper flange support base 10 is a C-shaped structure with one end open, and the opening width of the C-shaped structure matches the thickness of the upper flange of the large-section H-shaped steel beam 11, so that the upper flange support base 10 is matched and clamped at the edge of the upper flange of the large-section H-shaped steel beam 11.

[0035] The opening width of the C-shaped structure of the upper flange support base 10 can be adaptively adjusted according to the thickness of the upper flange of the large-section H-shaped steel beam 11 to ensure that the upper flange support cross bar 9 is stably clamped on the upper flange of the large-section H-shaped steel beam 11 without slipping or falling out. Preferably, an anti-skid pad can be provided in the upper flange support base 10 to further improve the clamping stability.

[0036] Please see attached Figure 1 and attached Figure 2The upper flange support cross bar 9 is provided with an upper flange support fixing buckle 8 at one end away from the large-section H-shaped steel beam 11, and the upper flange support fixing buckle 8 is adjustably connected between the upper flange support cross bar 9 and the upper part of the supporting diagonal bar 7.

[0037] The upper flange support fixing buckle 8 is used for connecting the upper flange support cross bar 9 and the support diagonal bar 7, and can adapt to the angle adjustment requirements between the support diagonal bar 7 with different inclination angles and the horizontal upper flange support cross bar 9.

[0038] The upper flange support fixing buckle 8 includes a first hoop (not shown in the figure) and a second hoop (not shown in the figure). The first hoop is engaged with the upper flange support cross bar 9, and the second hoop is engaged with the upper part of the support diagonal bar 7. The first hoop and the second hoop are movably connected through a ball shaft.

[0039] Preferably, the ball shaft can adopt a double ball shaft, and the two ball shaft ends of the double ball shaft are respectively installed between the first clamp and the second clamp through the ball shaft seat, so that the angle adjustment between the first clamp and the second clamp is realized by utilizing the relative rotation between the two ball shaft ends and the ball shaft seat, thereby adapting to the angle change between the upper flange support cross bar 9 and the support diagonal bar 7.

[0040] Please see attached Figure 1 and attached Figure 2 A lower flange support base 6 is provided at one end of the lower flange support cross bar 5 close to the large-section H-shaped steel beam 11. The lower flange support base 6 is a C-shaped structure with one end open, and the opening width of the C-shaped structure matches the thickness of the lower flange of the large-section H-shaped steel beam 11, so that the lower flange support base 6 is matched and clamped at the edge of the lower flange of the large-section H-shaped steel beam 11.

[0041] The opening width of the C-shaped structure of the lower flange support base 6 can be adaptively adjusted according to the thickness of the lower flange of the large-section H-shaped steel beam 11 to ensure that the lower flange support cross bar 5 is stably clamped on the lower flange of the large-section H-shaped steel beam 11 without slipping or falling out. Preferably, an anti-skid pad can be provided in the lower flange support base 5 to further improve the clamping stability.

[0042] Please see attached Figure 1 and attached Figure 2 The lower flange support cross bar 5 is provided with a lower flange support fixing buckle 4 at one end away from the large-section H-shaped steel beam 11, and the lower flange support fixing buckle 4 is adjustably connected between the lower flange support cross bar 5 and the lower part of the supporting diagonal bar 7.

[0043] The lower flange support fixing buckle 4 is used for connecting the lower flange support cross bar 5 and the support diagonal bar 7, and can adapt to the angle adjustment requirements between the support diagonal bar 7 with different inclination angles and the horizontal lower flange support cross bar 5.

[0044] The lower flange support fixing buckle 4 includes a third hoop (not shown in the figure) and a fourth hoop (not shown in the figure). The third hoop is engaged with the lower flange support cross bar 5, and the fourth hoop is engaged with the lower part of the support diagonal bar 7. The third hoop and the fourth hoop are movably connected through a ball shaft.

[0045] Preferably, the ball shaft can adopt a double ball shaft, and the two ball shaft ends of the double ball shaft are respectively installed between the third clamp and the fourth clamp through the ball shaft seat, so that the angle adjustment between the third clamp and the fourth clamp is realized by utilizing the relative rotation between the two ball shaft ends and the ball shaft seat, thereby adapting to the angle change between the lower flange support cross bar 5 and the support diagonal bar 7.

[0046] Please see attached Figure 1 and attached Figure 2 , a method for using an adjustable large-section steel beam anti-dumping device, comprising the following steps:

[0047] Step 1: According to the need to return the large-section H-shaped steel beam 11 to the top, place the bottom surface of the support base on the ground at a suitable position beside the large-section H-shaped steel beam 11, and adjust the top surface of the support base to be in an inclined state, so that the supporting diagonal rod 7 is tilted and set beside the large-section H-shaped steel beam 11.

[0048] Specifically, the bottom plate 1 of the support base is attached to the ground at a suitable position beside the large-section H-shaped steel beam 11, and the adjustment plate 2 of the support base is rotated around the rotation axis so that the adjustment plate 2 is in an inclined state, so that the supporting diagonal rod 7 is obliquely set beside the large-section H-shaped steel beam 11, and the adjustment plate 2 is fixed by the bottom support rod 3.

[0049] Step 2: Horizontally connect the lower flange support cross bar 5 between the lower part of the support diagonal bar 7 and the lower flange of the large-section H-shaped steel beam 11.

[0050] Specifically, the lower flange support fixing buckle 4 is clamped on the lower flange support cross bar 5 through the third clamp, one end of the lower flange support cross bar 5 is clamped on the lower part of the supporting diagonal bar 7 through the fourth clamp, the lower flange support cross bar 5 is rotated to a horizontal state through the ball shaft, and the other end of the lower flange support cross bar 5 is clamped at the edge of the lower flange of the large-section H-shaped steel beam 11 through the lower flange support base 6, and the third clamp and the fourth clamp are locked by bolts and nuts.

[0051] Step 3: Horizontally connect the upper flange support cross bar 9 between the upper part of the support diagonal bar 7 and the upper flange of the large-section H-shaped steel beam 11.

[0052] Specifically, the upper flange support fixing buckle 8 is clamped on the upper flange support cross bar 9 through the first clamp, one end of the upper flange support cross bar 9 is clamped on the upper part of the supporting diagonal bar 7 through the second clamp, the upper flange support cross bar 9 is rotated to a horizontal state through the ball shaft, and the other end of the upper flange support cross bar 9 is clamped at the upper flange edge of the large-section H-shaped steel beam 11 through the upper flange support base 10, and the first clamp and the second clamp are locked by bolts and nuts.

[0053] The installation position of the fourth hoop at the lower part of the supporting diagonal bar 7 and the installation position of the second hoop at the upper part of the supporting diagonal bar 7 are adaptively adjusted according to the cross-sectional size of the large-section H-shaped steel beam 11, and the installation position of the third hoop on the lower flange supporting cross bar 5 and the installation position of the first hoop on the upper flange supporting cross bar 9 are adaptively adjusted according to the return angle of the supporting diagonal bar 7 and the spacing between the supporting diagonal bar 7 and the large-section H-shaped steel beam 11 to ensure that the lower flange supporting cross bar 5 and the upper flange supporting cross bar 9 can provide horizontal return support for the large-section H-shaped steel beam 11, and transfer the load to the ground through the supporting base through the supporting diagonal bar 7.

[0054] Please see attached Figure 1 and attached Figure 2 The preparation method of the present invention is:

[0055] The bottom plate 1 is a PL200*200*10mm steel plate made of Q355B; the adjustment plate 2 is a PL200*200*10mm steel plate made of Q355B; the bottom support rod 3 is a M20*110mm bolt and is equipped with two nuts.

[0056] One end of the bottom plate 1 is rotatably connected to one end of the adjustment plate 2 through a rotating shaft, and is used to adjust the inclination angle of the adjustment plate 2. A long strip of through-holes is provided on the adjustment plate 2, so that the bottom support rod 3 passes through the through-holes. When the adjustment plate 2 is rotated to adjust the angle, the bottom support rod 3 moves accordingly in the through-holes. Two nuts are screwed onto the bottom support rod 3, and the two nuts are respectively located above and below the adjustment plate 2, so that the inclination angle of the adjustment plate 2 can be adjusted and fixed by rotating and locking the two nuts on the bottom support rod 3, thereby playing the role of adjusting the return angle of the support diagonal rod 7.

[0057] The supporting diagonal rod 7 is a round tube of φ48*3mm, made of Q235B, and is vertically fixed on the upper surface of the adjusting plate 2 by welding. The supporting diagonal rod 7 is sleeved with the fourth clamp of the lower flange supporting fixing buckle 4 and the second clamp of the upper flange supporting fixing buckle 8, and the size of the clamp can be selected according to the size adaptability of the supporting diagonal rod 7.

[0058] The lower flange support cross bar 5 and the upper flange support cross bar 9 are both φ48*3mm round tubes made of Q235B. The lower flange support cross bar 5 is sleeved with the third clamp of the lower flange support fixing buckle 4, and the upper flange support cross bar 9 is sleeved with the first clamp of the upper flange support fixing buckle 8. The size of the clamp can be selected according to the size adaptability of the support cross bar.

[0059] The clamp is a conventional pipe connection member in the art, and its structure, working principle and installation method are not described in detail here. The lower flange support fixing buckle 4 and the upper flange support fixing buckle 8 can directly adopt the cross-shaped scaffolding fasteners of the prior art.

[0060] Since the lower flange supporting cross bar 5 and the upper flange supporting cross bar 9 are always in a horizontal state, the angles between the first hoop and the second hoop, and between the third hoop and the fourth hoop are also different according to the different inclination angles of the supporting diagonal bar 7. The relative rotation of the first hoop and the second hoop can be satisfied by the ball axis between the first hoop and the second hoop, and the relative rotation of the third hoop and the fourth hoop can be satisfied by the ball axis between the third hoop and the fourth hoop, thereby ensuring the top return angle of the supporting diagonal bar 7 and the horizontal support of the lower flange supporting cross bar 5 and the upper flange supporting cross bar 9.

[0061] The lower flange support base 6 and the upper flange support base 10 have the same structure, both of which are welded by a PL140*80*10mm and two PL140*90*10mm steel plates made of Q235B to form a C-shaped structure. The lower flange support base 6 and the upper flange support base 10 are respectively clamped at the lower flange edge and the upper flange edge of the large-section H-shaped steel beam 11 through the opening matching of the C-shaped structure.

[0062] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable large-section steel beam anti-dumping device, characterized by: The invention comprises a support base, a support diagonal rod (7), an upper flange support cross rod (9) and a lower flange support cross rod (5); the bottom surface of the support base is arranged on the ground beside the large-section H-shaped steel beam (11), and the top surface of the support base is an adjustable inclined surface; the lower end of the support diagonal rod (7) is fixedly mounted on the top surface of the support base, so that the support diagonal rod (7) is adjustably inclined and arranged beside the upper flange and the lower flange of the large-section H-shaped steel beam (11), and the horizontal distance between the support diagonal rod (7) and the upper flange edge of the large-section H-shaped steel beam (11) is less than the horizontal distance between the support diagonal rod (7) and the upper flange edge of the large-section H-shaped steel beam (11). The horizontal distance at the edge of the lower flange of the large-section H-shaped steel beam (11); one end of the upper flange support cross bar (9) is movably connected to the upper part of the support diagonal bar (7), and the other end of the upper flange support cross bar (9) extends horizontally toward the large-section H-shaped steel beam (11) and is matched with the upper flange of the large-section H-shaped steel beam (11); one end of the lower flange support cross bar (5) is movably connected to the lower part of the support diagonal bar (7), and the other end of the lower flange support cross bar (5) extends horizontally toward the large-section H-shaped steel beam (11) and is matched with the lower flange of the large-section H-shaped steel beam (11).

2. The adjustable large-section steel beam anti-dumping device according to claim 1 is characterized in that: The support base comprises a bottom plate (1), an adjustment plate (2) and a bottom support rod (3); one end of the bottom plate (1) is rotatably and adjustably connected to one end of the adjustment plate (2); the lower end of the bottom support rod (3) is fixed to the bottom plate (1), and the upper end of the bottom support rod (3) passes through the adjustment plate (2) upward; when the bottom support rod (3) is locked on the adjustment plate (2), the adjustment plate (2) can be inclined, and the lower end of the support inclined rod (7) is vertically connected to the adjustment plate (2).

3. The adjustable large-section steel beam anti-dumping device according to claim 1 is characterized in that: An upper flange support base (10) is provided at one end of the upper flange support cross bar (9) close to the large-section H-shaped steel beam (11); the upper flange support base (10) is a C-shaped structure with one end open, and the opening width of the C-shaped structure matches the thickness of the upper flange of the large-section H-shaped steel beam (11), so that the upper flange support base (10) is matched and clamped at the edge of the upper flange of the large-section H-shaped steel beam (11).

4. The adjustable large-section steel beam anti-dumping device according to claim 3 is characterized by: An upper flange support fixing buckle (8) is provided at one end of the upper flange support cross bar (9) away from the large-section H-shaped steel beam (11), and the upper flange support fixing buckle (8) is adjustably connected between the upper flange support cross bar (9) and the upper part of the supporting diagonal bar (7).

5. The adjustable large-section steel beam anti-dumping device according to claim 4 is characterized in that: The upper flange support fixing buckle (8) comprises a first clamp and a second clamp, wherein the first clamp is clamped on the upper flange support cross bar (9), and the second clamp is clamped on the upper part of the support diagonal bar (7), and the first clamp is movably connected to the second clamp.

6. The adjustable large-section steel beam anti-dumping device according to claim 1 is characterized in that: A lower flange support base (6) is provided at one end of the lower flange support cross bar (5) close to the large-section H-shaped steel beam (11); the lower flange support base (6) is a C-shaped structure with one end open, and the opening width of the C-shaped structure matches the thickness of the lower flange of the large-section H-shaped steel beam (11), so that the lower flange support base (6) is matched and clamped at the edge of the lower flange of the large-section H-shaped steel beam (11).

7. The adjustable large-section steel beam anti-dumping device according to claim 6 is characterized in that: A lower flange support fixing buckle (4) is provided at one end of the lower flange support cross bar (5) away from the large-section H-shaped steel beam (11), and the lower flange support fixing buckle (4) is adjustably connected between the lower flange support cross bar (5) and the lower part of the supporting diagonal bar (7).

8. The adjustable large-section steel beam anti-dumping device according to claim 7 is characterized in that: The lower flange support fixing buckle (4) comprises a third clamp and a fourth clamp, the third clamp is clamped on the lower flange support cross bar (5), the fourth clamp is clamped on the lower part of the support diagonal bar (7), and the third clamp is movably connected to the fourth clamp.

9. A method for using the adjustable large-section steel beam anti-dumping device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: According to the need to return the large-section H-shaped steel beam (11) to the top, place the bottom surface of the support base on the ground beside the large-section H-shaped steel beam (11), and adjust the top surface of the support base to be in an inclined state, so that the support inclined rod (7) is inclinedly arranged beside the large-section H-shaped steel beam (11); Step 2: horizontally connect the lower flange support cross bar (5) between the lower part of the support diagonal bar (7) and the lower flange of the large-section H-shaped steel beam (11); Step 3: Connect the upper flange support cross bar (9) horizontally between the upper part of the support diagonal bar (7) and the upper flange of the large-section H-shaped steel beam (11).

10. The method of use according to claim 9, characterized in that: In the step 1, the bottom plate (1) of the support base is placed on the ground beside the large-section H-shaped steel beam (11), and the adjustment plate (2) of the support base is rotated so that the adjustment plate (2) is inclined, so that the support inclined rod (7) is inclinedly arranged beside the large-section H-shaped steel beam (11), and the adjustment plate (2) is fixed by the bottom support rod (3); In the step 2, the lower flange support fixing buckle (4) is clamped on the lower flange support cross bar (5) through the third clamping hoop, one end of the lower flange support cross bar (5) is clamped on the lower part of the support diagonal bar (7) through the fourth clamping hoop, the lower flange support cross bar (5) is rotated to a horizontal state, and the other end of the lower flange support cross bar (5) is matched and clamped at the edge of the lower flange of the large-section H-shaped steel beam (11) through the lower flange support base (6), and the third clamping hoop and the fourth clamping hoop are locked; In the step 3, the upper flange support fixing buckle (8) is clamped on the upper flange support cross bar (9) through the first clamp, one end of the upper flange support cross bar (9) is clamped on the upper part of the supporting diagonal bar (7) through the second clamp, the upper flange support cross bar (9) is rotated to a horizontal state, and the other end of the upper flange support cross bar (9) is matched and clamped at the upper flange edge of the large-section H-shaped steel beam (11) through the upper flange support base (10), and the first clamp and the second clamp are locked.

Images