CN219528331U - Steel structure supporting frame for building construction - Google Patents

Abstract

The utility model relates to the technical field of steel structure supporting frames, and provides a steel structure supporting frame for building construction, which comprises: bottom plate and supporting platform are provided with drive assembly in supporting platform's inside, under drive assembly's effect, can be close to each other or keep away from each other at supporting platform inside to first expansion plate and second expansion plate to the convenience is according to actual work needs, carries out quick expansion to supporting platform's workspace. When first expansion plate and second expansion plate remove, the railing can carry out corresponding slip in main baffle inside, can surround the protection through main baffle, side shield, roll-over door and railing to the workspace of supporting platform upside, improves the security performance greatly. The lower ends of the second expansion plate and the first expansion plate are all hinged to be connected with a supporting component, the lower ends of the first expansion plate and the second expansion plate can be stably supported through the supporting component, and the stability of the first expansion plate and the second expansion plate during working is ensured.

Description

Steel structure supporting frame for building construction

Technical Field

The utility model relates to the technical field of steel structure supporting frames, in particular to a steel structure supporting frame for building construction.

Background

The building construction refers to the production activity of engineering construction implementation stage, which is the construction process of various buildings, and can be said to be the process of changing various lines on a design drawing into real objects at a designated place. The method comprises foundation engineering construction, main body structure construction, roof engineering construction, decoration engineering construction and the like. The place of construction operation is called "building construction site" or is called "construction site", need use steel construction support frame in the building construction process, measure or be under construction to the position department of certain height in the building roof, current steel construction support frame mostly is the groined type structure, the height of steel construction can not be adjusted, when the operative employee stands on steel construction needs portable, still needs to get down, climbs up again after removing steel construction support frame, perhaps needs the people below to promote the support frame slowly, the operation is very inconvenient.

Through searching, the patent document with the publication number of CN217400269U and the name of a steel structure supporting frame used in engineering design comprises the following steps: the bottom four corners of the horizontal plate are respectively provided with a movable wheel; the working platform is positioned above the horizontal plate. When the steel structure support frame is used, the top end of the limiting telescopic rod on the working platform is rotated, so that the working platform can move forwards and backwards; by means of the structure, the complexity of moving the steel structure support frame is greatly avoided, an operator goes down again or needs other people to assist in moving the steel structure support frame, and the moving convenience of the steel structure support frame is improved.

However, in the above scheme, there is still a certain disadvantage, and the work platform upper end does not set up protective structure, and constructor exists the risk that drops, and the security performance is lower, in addition, in order to make things convenient for the steel construction support frame to transport and place, the whole size of steel construction support frame is less, and this just leads to the table surface area on the steel construction support frame less easily, is unfavorable for actual building construction work.

In view of the above, the utility model provides a steel structure support frame for building construction.

Disclosure of Invention

The utility model provides a steel structure support frame for building construction, which solves the problems that the prior steel structure support frame in the related art is convenient for transportation and placement of the steel structure support frame, and the whole body of the steel structure support frame is smaller, so that the area of a working table surface on the steel structure support frame is smaller, and the actual building construction work is not facilitated.

The technical scheme of the utility model is as follows: steel construction support frame for construction includes: the support platform is characterized by comprising a bottom plate, a supporting platform is arranged above the bottom plate, a jacking mechanism is arranged between the supporting platform and the bottom plate, main baffles are fixedly connected to the upper ends of the front side and the rear side of the supporting platform, a first expansion plate and a second expansion plate are respectively sleeved in the left side and the right side of the supporting platform in a sliding mode, a side baffle is fixedly connected to the upper end of the first expansion plate, a U-shaped frame is fixedly connected to the upper end of the second expansion plate, a plurality of railing are fixedly connected to the opposite inner walls of the U-shaped frame and the side baffle, the railing sliding sleeve is arranged inside the main baffles, a roll-over door is rotatably connected to the inside of the U-shaped frame, and the roll-over door is fixedly connected with the U-shaped frame through locking pieces. The inside of supporting platform is provided with the drive assembly that removes first expansion plate and second expansion plate, supporting platform's outer wall fixed mounting has the electric motor that carries out the drive to drive assembly, the lower extreme of second expansion plate and first expansion plate all articulates and is connected with supporting assembly.

Preferably, the lower ends of the left side and the right side of the supporting platform are fixedly connected with guide sleeve plates, the upper ends of the left side and the right side of the bottom plate are fixedly connected with vertical plates, and the guide sleeve plates are slidably sleeved on the outer walls of the vertical plates.

Preferably, a sliding cavity for sliding the first expansion plate and the second expansion plate is formed in the supporting platform.

Preferably, the transmission assembly comprises a guide screw rod arranged in the sliding cavity, the first expansion plate and the second expansion plate are sleeved on the outer wall of the guide screw rod through threads, the upper end of the sliding cavity is fixedly connected with two hanging rings which suspend the guide screw rod, and the guide screw rod is rotationally connected inside the hanging rings.

Preferably, the turbine is arranged on the outer wall of the guide screw between the two hanging rings in a fixed sleeve manner, the movable groove is formed in the lower side of the sliding cavity, a worm meshed with the turbine is arranged in the movable groove, the worm is fixedly connected to the shaft rod in the inside, the shaft rod is rotatably connected to the inside of the supporting platform, and the end part of the output shaft of the electric motor is fixedly connected with the shaft rod.

Preferably, the support assembly comprises a turnover cylinder, an inner rod is sleeved on the inner sliding sleeve of the turnover cylinder, a plurality of threaded holes are formed in the outer wall of the inner rod at equal intervals, a first fastening bolt is arranged on the outer wall of the turnover cylinder in a threaded sleeve mode, the turnover cylinder is fixedly connected with the inner rod through the first fastening bolt and the threaded holes, a movable opening is formed in the bottom of the inner rod, and a right-angle frame is connected to the inner portion of the movable opening in a rotary mode.

Preferably, the outer walls of the front side and the rear side of the right-angle frame are respectively provided with a second fastening bolt in a threaded sleeve manner, and positioning holes matched with the second fastening bolts are formed in the outer walls of the guide sleeve plates at equal intervals.

Preferably, the locking piece includes the push-pull disc that sets up in parallel in U type frame upper end, push-pull disc rear side lower extreme fixedly connected with movable rod, the movable rod slip cap is located inside the U type frame upper end, the outside cover of movable rod is equipped with reset spring, end wall fixed connection under reset spring one end and the push-pull disc, in addition one end and the upper end wall fixed connection of U type frame, push-pull disc front side lower extreme fixedly connected with inserted bar, the jack that supplies the inserted bar to insert is seted up to the upper end of roll-over door.

Preferably, the inner wall of the U-shaped frame is fixedly connected with a lapping plate for lapping the roll-over door.

Preferably, the jacking mechanism comprises a machine frame fixedly mounted on the outer wall of the bottom plate, the upper end of the machine frame is rotationally connected with a transmission screw rod, a threaded sleeve is sleeved on the outer wall of the transmission screw rod, the upper end of the threaded sleeve is fixedly connected to the bottom of the supporting platform, and a motor for rotating the transmission screw rod is fixedly mounted in the machine frame.

The working principle and the beneficial effects of the utility model are as follows:

1. according to the utility model, the upper ends of the front side and the rear side of the supporting platform are fixedly connected with the main baffle, the first expansion plate and the second expansion plate are respectively sleeved in the left side and the right side of the supporting platform in a sliding way, the transmission assembly for moving the first expansion plate and the second expansion plate is arranged in the supporting platform, the electric motor for driving the transmission assembly is fixedly arranged on the outer wall of the supporting platform, and the first expansion plate and the second expansion plate can be mutually close to or mutually far away from each other in the supporting platform under the action of the transmission assembly, so that the working space of the supporting platform can be rapidly expanded according to actual working requirements, and the supporting platform is simple in operation, convenient to use and good in practical performance;

2. according to the utility model, the upper end of the first expansion plate is fixedly connected with the side baffle, the upper end of the second expansion plate is fixedly connected with the U-shaped frame, the opposite inner walls of the U-shaped frame and the side baffle are fixedly connected with a plurality of railings, the railings are slidably sleeved in the main baffle, the inside of the U-shaped frame is rotatably connected with the roll-over door, under the action of the locking piece, the roll-over door is conveniently locked or released, the first expansion plate and the second expansion plate move, the railings can correspondingly slide in the main baffle, and the working space on the upper side of the supporting platform can be surrounded and protected through the main baffle, the side baffle, the roll-over door and the railings, so that the safety performance is greatly improved;

3. according to the utility model, the lower ends of the second expansion plate and the first expansion plate are both hinged with the supporting component, under the action of the supporting component, when the working space is enlarged by mutually separating the first expansion plate and the second expansion plate, the lower ends of the first expansion plate and the second expansion plate can be stably supported through the supporting component, so that the stability of the first expansion plate and the second expansion plate in working is ensured, the safety performance is further improved, and the operation is simple and convenient.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

Fig. 1 is a schematic view of a three-dimensional structure of a steel structure support frame for building construction according to the present utility model;

fig. 2 is a schematic diagram of a partially enlarged structure of a steel structure support frame for building construction according to the present utility model;

FIG. 3 is a schematic view of the inside of the structural support platform according to the present utility model;

FIG. 4 is an enlarged schematic view of FIG. 1A;

FIG. 5 is an enlarged schematic view of the structure B in FIG. 3;

in the figure: 1. a bottom plate; 2. a vertical plate; 3. a guide sleeve plate; 301. positioning holes; 4. a frame; 5. a support assembly; 501. a turnover drum; 502. a first fastening bolt; 503. an inner rod; 504. a movable opening; 505. a second fastening bolt; 506. a right angle frame; 507. a threaded hole; 6. a transmission screw rod; 7. a threaded sleeve; 8. an electric motor; 9. a first expansion plate; 10. a second expansion plate; 11. a roll-over door; 1101. a jack; 12. a U-shaped frame; 13. a locking member; 1301. a moving rod; 1302. a return spring; 1303. a rod; 1304. a push-pull disc; 14. a main baffle; 15. a support platform; 1501. a sliding chamber; 16. side baffles; 17. railing; 18. a transmission assembly; 1801. a turbine; 1802. a guide screw rod; 1803. a worm; 1804. a movable groove; 1805. a shaft lever; 1806. a hanging ring; 19. and (5) lapping plates.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, a steel structure support frame for construction includes: the bottom plate 1, the top of bottom plate 1 is provided with supporting platform 15, be provided with climbing mechanism between supporting platform 15 and the bottom plate 1, climbing mechanism includes fixed mounting in the frame 4 of bottom plate 1 outer wall, and the upper end rotation of frame 4 is connected with transmission lead screw 6, and the outer wall thread bush of transmission lead screw 6 is equipped with screw sleeve 7, and screw sleeve 7's upper end fixed connection is in supporting platform 15 bottom, and at the inside fixed mounting of frame 4 carries out pivoted motor to transmission lead screw 6. The equal fixedly connected with uide bushing board 3 of lateral lower extreme about supporting platform 15, the equal fixedly connected with riser 2 of lateral upper end about bottom plate 1, riser 2 outer wall is located to the cover slip cap of uide bushing board 3, starts the inside motor of frame 4, and the motor can drive transmission lead screw 6 through its output shaft and rotate, and when transmission lead screw 6 rotated, screw sleeve 7 can reciprocate along transmission lead screw 6 to can adjust supporting platform 15's working height.

Referring to fig. 1 and 4, the front and rear side upper ends of the supporting platform 15 are fixedly connected with the main baffle 14, the left and right side inner parts of the supporting platform 15 are respectively provided with the first telescopic plate 9 and the second telescopic plate 10 in a sliding sleeve manner, the inner part of the supporting platform 15 is provided with a sliding cavity 1501 for sliding the first telescopic plate 9 and the second telescopic plate 10, the upper end of the first telescopic plate 9 is fixedly connected with the side baffle 16, the upper end of the second telescopic plate 10 is fixedly connected with the U-shaped frame 12, the opposite inner walls of the U-shaped frame 12 and the side baffle 16 are fixedly connected with a plurality of rails 17, the rails 17 are slidably sleeved inside the main baffle 14, the inner wall of the U-shaped frame 12 is rotationally connected with the turning door 11, the inner wall of the U-shaped frame 12 is fixedly connected with a lapping plate 19 for lapping the turning door 11, the working space on the upper side of the supporting platform 15 can be surrounded and protected through the main baffle 14, the side baffle 16, the turning door 11 and the rails 17, when the inner parts of the supporting platform 15 slide, the working space can be enlarged or reduced through sliding the first telescopic plate 9 and the second telescopic plate 10 inside the supporting platform 15, the first telescopic plate 9 and the second telescopic plate 10 can slide inside the main baffle 17.

The roll-over door 11 is fixedly connected with the U-shaped frame 12 through the locking piece 13, wherein the locking piece 13 comprises a push-pull disc 1304 which is arranged at the upper end of the U-shaped frame 12 in parallel, a moving rod 1301 is fixedly connected to the lower end of the rear side of the push-pull disc 1304, the moving rod 1301 is slidably sleeved inside the upper end of the U-shaped frame 12, a reset spring 1302 is sleeved outside the moving rod 1301, one end of the reset spring 1302 is fixedly connected with the lower end wall of the push-pull disc 1304, the other end of the reset spring 1302 is fixedly connected with the upper end wall of the U-shaped frame 12, a plug rod 1303 is fixedly connected to the lower end of the front side of the push-pull disc 1304, a jack 1101 for inserting the plug rod 1303 is formed in the upper end of the roll-over door 11, when the roll-over door 11 is lapped on the lapping plate 19 to close the U-shaped frame 12, the push-pull disc 1304 drives the moving rod 1301 and the plug rod 1303 to move upwards, the reset spring 1302 stretches, at the moment, the roll-over door 11 can be lapped on the lapping plate 19 smoothly, then, the pull of the push-pull disc 1304 is released, the plug disc 1303 moves downwards to reset under the action of the reset spring 1302, and the plug rod 1101 is just positioned inside the jack 1101, and the position of the plug 11 is locked.

Referring to fig. 1, 3 and 5, a transmission assembly 18 for moving the first expansion plate 9 and the second expansion plate 10 is disposed inside the supporting platform 15, and an electric motor 8 for driving the transmission assembly 18 is fixedly mounted on the outer wall of the supporting platform 15. The transmission assembly 18 comprises a guide screw 1802 arranged in the sliding cavity 1501, the first expansion plate 9 and the second expansion plate 10 are both in threaded sleeve connection with the outer wall of the guide screw 1802, the guide screw 1802 is divided into a left section and a right section, and the threaded directions on the outer walls of the left section and the right section of the guide screw 1802 are opposite. The upper end of the sliding cavity 1501 is fixedly connected with two hanging rings 1806 which suspend the guide screw 1802, and the guide screw 1802 is rotatably connected inside the hanging rings 1806. The fixed cover of guide screw 1802 outer wall between two rings 1806 is equipped with turbine 1801, and movable groove 1804 has been seted up to the sliding chamber 1501 downside, and the inside of movable groove 1804 is provided with worm 1803 with turbine 1801 engaged with, and the inside fixed connection of worm 1803 is in axostylus axostyle 1805, and axostylus axostyle 1805 rotates to be connected in supporting platform 15 inside, and electric motor 8's output shaft end and axostylus axostyle 1805 fixed connection. The electric motor 8 is started, the electric motor 8 drives the shaft rod 1805 to rotate through the output shaft of the electric motor 8, the shaft rod 1805 drives the worm 1803 to rotate, the worm 1803 can drive the guide screw 1802 to rotate through the turbine 1801 when rotating, and the guide screw 1802 can be mutually close to or mutually far away from along the outer wall of the guide screw 1802 when rotating, and the first telescopic plate 9 and the second telescopic plate 10 can be mutually close to or far away from each other.

Referring to fig. 1 and 2, the lower ends of the second expansion plate 10 and the first expansion plate 9 are both hinged with a supporting component 5. The support assembly 5 comprises a turnover cylinder 501, an inner rod 503 is arranged on the inner sliding sleeve of the turnover cylinder 501, a plurality of threaded holes 507 are formed in the outer wall of the inner rod 503 at equal intervals, a first fastening bolt 502 is arranged on the outer wall of the turnover cylinder 501 in a threaded sleeve mode, the turnover cylinder 501 is fixedly connected with the inner rod 503 through the first fastening bolt 502 and the threaded holes 507, a movable opening 504 is formed in the bottom of the inner rod 503, and a right-angle frame 506 is connected to the inner portion of the movable opening 504 in a rotating mode. The equal thread bush of side outer wall is equipped with second fastening bolt 505 around the right angle frame 506, the outer wall equidistance of uide bushing board 3 is offered and is had been had a locating hole 301 with second fastening bolt 505 matched with, when keeping away from each other to increase working space through first expansion plate 9 and second expansion plate 10, in order to further improve the stability of first expansion plate 9 and second expansion plate 10, rotate upset section of thick bamboo 501 towards uide bushing board 3 one side, interior pole 503 slides in upset section of thick bamboo 501 inside, rotate right angle frame 506 in movable port 504 inside, make the left end face of right angle frame 506 can laminate in uide bushing board 3 outer wall, at this moment, through second fastening bolt 505 and locating hole 301 with right angle frame 506 fixed connection in uide bushing board 3 outer wall, fix upset section of thick bamboo 501 and interior pole 503 through first fastening bolt 502 and screw hole 507.

Working principle and using flow: during operation, first, the roll-over door 11 is turned over and opened, the operator conveniently enters the upper end of the supporting platform 15, then, the roll-over door 11 is closed, when the roll-over door 11 is lapped on the lapping plate 19 and the U-shaped frame 12 is closed, the push-pull plate 1304 is pulled upwards, the push-pull plate 1304 drives the moving rod 1301 and the inserting rod 1303 to move upwards, the reset spring 1302 stretches, at this moment, the roll-over door 11 can be lapped on the lapping plate 19 smoothly, then, the pulling of the push-pull plate 1304 is released, the push-pull plate 1304 moves downwards and resets under the action of the reset spring 1302, the inserting rod 1303 is just inserted into the jack 1101, and the position of the roll-over door 11 is locked. When the working space is increased by mutually keeping away the first expansion plate 9 and the second expansion plate 10, the electric motor 8 is started, the electric motor 8 drives the shaft rod 1805 to rotate through the output shaft of the electric motor 8, the shaft rod 1805 drives the worm 1803 to rotate, the worm 1803 can drive the guide screw 1802 to rotate through the turbine 1801 when rotating, and the guide screw 1802 can be mutually close to or mutually far away along the outer wall of the guide screw 1802 by the first expansion plate 9 and the second expansion plate 10 when rotating, so that the working space can be adjusted. The rail 17 can slide correspondingly in the main barrier 14 while the first and second expansion plates 9 and 10 are moved, and the working space on the upper side of the support platform 15 can be surrounded and protected by the main barrier 14, the side barrier 16, the roll-over door 11 and the rail 17. In order to further improve the stability of the first expansion plate 9 and the second expansion plate 10, the overturning cylinder 501 is rotated towards one side of the guide sleeve plate 3, meanwhile, the inner rod 503 slides in the overturning cylinder 501, the right-angle frame 506 is rotated in the movable opening 504, the left end face of the right-angle frame 506 can be attached to the outer wall of the guide sleeve plate 3, at this time, the right-angle frame 506 is fixedly connected to the outer wall of the guide sleeve plate 3 through the second fastening bolt 505 and the positioning hole 301, and the overturning cylinder 501 and the inner rod 503 are fixed through the first fastening bolt 502 and the threaded hole 507. After that, start the inside motor of frame 4, the motor can drive transmission lead screw 6 through its output shaft and rotate, and when transmission lead screw 6 rotated, screw sleeve 7 can reciprocate along transmission lead screw 6 to can adjust supporting platform 15's working height.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. Steel construction support frame for construction includes: the lifting device is characterized in that the upper ends of the front side and the rear side of the supporting platform (15) are fixedly connected with a main baffle (14), a first expansion plate (9) and a second expansion plate (10) are respectively sleeved in the left side and the right side of the supporting platform (15) in a sliding mode, the upper end of the first expansion plate (9) is fixedly connected with a side baffle (16), the upper end of the second expansion plate (10) is fixedly connected with a U-shaped frame (12), a plurality of rails (17) are fixedly connected to the opposite inner walls of the U-shaped frame (12) and the side baffle (16), the rails (17) are sleeved in the main baffle (14) in a sliding mode, a turnover door (11) is connected in a rotating mode inside the U-shaped frame (12), and the turnover door (11) is fixedly connected with the U-shaped frame (12) through locking pieces (13);

the inside of supporting platform (15) is provided with drive assembly (18) that remove first expansion plate (9) and second expansion plate (10), the outer wall fixed mounting of supporting platform (15) has electric motor (8) that drive assembly (18), the lower extreme of second expansion plate (10) and first expansion plate (9) all articulates and is connected with supporting assembly (5).

2. The steel structure support frame for building construction according to claim 1, wherein the lower ends of the left side and the right side of the support platform (15) are fixedly connected with guide sleeve plates (3), the upper ends of the left side and the right side of the bottom plate (1) are fixedly connected with vertical plates (2), and the guide sleeve plates (3) are slidably sleeved on the outer walls of the vertical plates (2).

3. The steel structure support frame for building construction according to claim 1, wherein a sliding cavity (1501) for sliding the first expansion plate (9) and the second expansion plate (10) is formed in the support platform (15).

4. The steel structure support frame for building construction according to claim 3, wherein the transmission assembly (18) comprises a guide screw (1802) arranged in the sliding cavity (1501), the first telescopic plate (9) and the second telescopic plate (10) are both sleeved on the outer wall of the guide screw (1802) in a threaded manner, the upper end of the sliding cavity (1501) is fixedly connected with two hanging rings (1806) for hanging the guide screw (1802), and the guide screw (1802) is rotatably connected inside the hanging rings (1806).

5. The steel structure support frame for building construction according to claim 4, wherein a turbine (1801) is fixedly sleeved on the outer wall of a guide screw (1802) between two lifting rings (1806), a movable groove (1804) is formed in the lower side of the sliding cavity (1501), a worm (1803) meshed with the turbine (1801) is arranged in the movable groove (1804), the worm (1803) is fixedly connected to a shaft lever (1805) in the interior, the shaft lever (1805) is rotatably connected to the inside of the supporting platform (15), and the end part of an output shaft of the electric motor (8) is fixedly connected with the shaft lever (1805).

6. The steel structure support frame for building construction according to claim 2, wherein the support assembly (5) comprises a turnover cylinder (501), an inner rod (503) is sleeved on the inner sliding sleeve of the turnover cylinder (501), a plurality of threaded holes (507) are formed in the outer wall of the inner rod (503) at equal intervals, a first fastening bolt (502) is sleeved on the outer wall of the turnover cylinder (501) in a threaded manner, the turnover cylinder (501) and the inner rod (503) are fixedly connected through the first fastening bolt (502) and the threaded holes (507), a movable opening (504) is formed in the bottom of the inner rod (503), and a right-angle frame (506) is connected to the inner rotation of the movable opening (504).

7. The steel structure supporting frame for building construction according to claim 6, wherein the outer walls of the front side and the rear side of the right-angle frame (506) are respectively provided with a second fastening bolt (505) in a threaded sleeve mode, and the outer walls of the guide sleeve plates (3) are provided with positioning holes (301) matched with the second fastening bolts (505) at equal intervals.

8. The steel structure support frame for building construction according to claim 1, wherein the locking piece (13) comprises a push-pull disc (1304) which is arranged at the upper end of the U-shaped frame (12) in parallel, a movable rod (1301) is fixedly connected to the lower end of the rear side of the push-pull disc (1304), the movable rod (1301) is slidably sleeved inside the upper end of the U-shaped frame (12), a return spring (1302) is sleeved outside the movable rod (1301), one end of the return spring (1302) is fixedly connected with the lower end wall of the push-pull disc (1304), the other end of the return spring is fixedly connected with the upper end wall of the U-shaped frame (12), a plug rod (1101) is fixedly connected to the lower end of the front side of the push-pull disc (1304), and a jack (1101) for inserting the plug rod (1303) is formed in the upper end of the turnover door (11).

9. The steel structure support frame for building construction according to claim 1, wherein the inner wall of the U-shaped frame (12) is fixedly connected with a lapping plate (19) for lapping the roll-over door (11).

10. The steel structure support frame for building construction according to claim 1, wherein the jacking mechanism comprises a machine frame (4) fixedly installed on the outer wall of the bottom plate (1), a transmission screw rod (6) is rotatably connected to the upper end of the machine frame (4), a threaded sleeve (7) is sleeved on the outer wall of the transmission screw rod (6) in a threaded mode, the upper end of the threaded sleeve (7) is fixedly connected to the bottom of the support platform (15), and a motor for rotating the transmission screw rod (6) is fixedly installed in the machine frame (4).