CN215477545U

CN215477545U - Auxiliary transmission device for steel structure frame

Info

Publication number: CN215477545U
Application number: CN202121728375.1U
Authority: CN
Inventors: 赵宝军; 张宗军; 唐云刚; 彭豫; 黄皇; 李贱红; 陈德山; 王琼
Original assignee: China State Construction Hailong Technology Co Ltd
Current assignee: China State Construction Hailong Technology Co Ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-01-11
Anticipated expiration: 2031-07-27

Abstract

The utility model belongs to the technical field of steel structure frame carries the technique of jack-up and specifically relates to a steel structure frame's supplementary transmission device is related to, which comprises a frame, the rack-mount is subaerial, transmission assembly is installed at the top of frame, transmission assembly is used for transmitting steel frame, ground between two frames is provided with lifting unit, lifting platform is installed to lifting unit's top surface, lifting platform's top surface is provided with supporting platform, lifting unit is used for controlling lifting platform and is the ascending motion of vertical side, in order to make steel frame can easily be carried, the jack-up, this application provides a steel structure frame's supplementary transmission device, manpower and manufacturing cost can have been saved, the efficiency that steel knot frame shifted has been improved.

Description

Auxiliary transmission device for steel structure frame

Technical Field

The application relates to the technical field of steel structure frame conveying and jacking, in particular to an auxiliary conveying device for a steel structure frame.

Background

The traditional steel frame generally comprises straight pipes and intermediate pipes, wherein a plurality of intermediate pipes are welded between two straight pipes to form the steel frame, in the steel frame machining process, the top view of the welded steel frame is generally in a 'mesh' shape, and in order to transfer the welded steel frame to a proper position, in general, a worker can bind the steel frame by using an iron chain or a rope and then transfer the steel frame by using a crane.

Generally, since the steel frame is very heavy, it is difficult for a worker to jack up and bind the steel frame by manpower, so that the steel frame is difficult to be transferred to a proper place, and at the same time, the work load of the worker is large and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to make steel frame can easily be carried, jack-up, this application provides a steel structure frame's supplementary transmission device, can save manpower and manufacturing cost, has improved the efficiency that the steel knot frame shifted.

The application provides a pair of steel construction frame's supplementary transmission device adopts following technical scheme:

the utility model provides a steel construction frame's supplementary transmission device, including the frame, the rack-mount is subaerial, transmission assembly is installed at the top of frame, transmission assembly is used for transmitting steel frame, two ground between the frame is provided with lifting unit, elevating platform is installed to lifting unit's top surface, elevating platform's top surface is provided with supporting platform, lifting unit is used for control elevating platform is the ascending motion of vertical side.

Through adopting above-mentioned technical scheme, transmission assembly's setting can be transported steel frame conveniently, and lifting unit can control lift platform's lift to, lift platform is the ascending motion of vertical side and can easily with steel frame jack-up, and the staff can bind the steel frame fast and shift, has improved the efficiency that the steel knot frame shifted.

Preferably, the transmission assembly includes: the roller seat is arranged on the top surface of the rack; the driving motor is arranged on the side wall of the roller seat; the roller is assembled at the output end of the driving motor; the roller seat is arranged on the top surface of the frame; the carrier roller is rotatably connected to the middle part of the carrier roller seat; the roller sleeve is sleeved on the outer wall of the carrier roller, the output end of the driving motor points to the side wall of the roller holder, and the roller is located in the middle of the roller holder.

Through adopting above-mentioned technical scheme, driving motor can drive the roller and rotate as the power supply, and the bearing roller provides the traction for placing the steel framework on the roller, under the effect of follow-up steel framework thrust, can make steel framework move forward always, and under the combined action of driving motor, roller, bearing roller, steel framework can transmit steadily.

Preferably, the lifting assembly comprises: a chassis installed on the ground; a sliding assembly mounted between the bottom of the lift platform and the top of the undercarriage; the anti-pinch scissor fork is arranged at the top of the sliding assembly; a sealing oil pump mounted on the top of the chassis; install motor pump station on the chassis top surface, wherein, the sliding assembly is used for right prevent pressing from both sides and cut the fork and fix and slide, motor pump station's output is directional sealed oil pump, sealed oil pump be used for right prevent pressing from both sides and cut the fork and carry out vertical direction motion control.

Through adopting above-mentioned technical scheme, the setting of slip subassembly can be fixed and slide to preventing pressing from both sides the scissors fork, and under motor pump station's drive, sealed oil pump can carry out the handle accuse of vertical direction motion to preventing pressing from both sides the scissors fork for prevent pressing from both sides the scissors fork and can drive lift platform and do the ascending motion of vertical direction.

Preferably, the sliding assembly includes: the first sliding grooves are arranged on the top surfaces of the two long sides of the bottom frame; the first pulley is connected to the middle of the first sliding groove in a sliding mode; the first fixed seat is arranged on the top surface of one end of the underframe; the second sliding chutes are arranged on the bottom surfaces of the two long edges of the lifting platform; the second pulley is connected to the middle part of the second sliding chute in a sliding manner; install the second fixing base of lift platform bottom surface, wherein, prevent pressing from both sides and cut the fork and keep away from the middle part of the both ends of first fixing base and first pulley rotates to be connected, prevent pressing from both sides and cut the fork and be close to the both ends of first fixing base with the middle part swing joint of first fixing base, prevent pressing from both sides and cut the fork and keep away from the both ends of second fixing base are rotated with the middle part of second pulley and are connected, prevent pressing from both sides and cut the fork and be close to the both ends of second fixing base with the middle part swing joint of second fixing base.

Through adopting above-mentioned technical scheme, under the effect of first fixing base and first pulley for prevent pressing from both sides two ends of bottom of cutting the fork and can assemble with the chassis steadily mutually, under the effect of second fixing base and second pulley, make prevent pressing from both sides two ends of top of cutting the fork and can assemble with lift platform steadily mutually.

Preferably, height limiting columns are respectively installed on the top surfaces of the two short sides of the underframe.

Through adopting above-mentioned technical scheme, the extreme low position that lift platform descends has been restricted in setting up of limit for height post to, limit for height post can reduce lift platform out of control and directly fall the safety risk that brings.

Preferably, the peripheral wall of the bottom surface of the lifting platform is provided with a safety protection strip.

Through adopting above-mentioned technical scheme, lift platform's bottom surface perisporium is provided with the safety protection strip, can reduce when lift platform descends direct and limit for height post collision and the damage that causes mutually.

Preferably, the anti-pinch scissor fork is far away from the outer side wall of one end of the first fixing seat is provided with a stop catch.

Through adopting above-mentioned technical scheme, through will ending the position separation blade and rotate and make the side of ending the position separation blade and the laminating of the minor face inside wall of chassis mutually, make first pulley stop to the direction removal of keeping away from first fixing base.

Preferably, the top surface of the lifting platform is provided with a barrier strip, and the length direction of the barrier strip is consistent with that of the lifting platform.

Through adopting above-mentioned technical scheme, at the in-process that supporting platform was jacked by lift platform, the dislocation that steel frame skew and lead to the left and right sides can be reduced in setting up of blend stop for supporting platform can be steadily jacked by lift platform.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the transmission assembly can conveniently transport the steel frame, the lifting assembly can control the lifting of the lifting platform, the lifting platform can easily jack the steel frame by moving in the vertical direction, and workers can quickly bind and transfer the steel frame, so that the transfer efficiency of the steel frame is improved;

2. the driving motor drives the roller to rotate, the carrier roller provides a traction effect for the steel frame placed on the roller, the steel frame can move forwards all the time under the action of the thrust of the subsequent steel frame, and the steel frame can be stably conveyed under the combined action of the driving motor, the roller and the carrier roller;

3. the setting of sliding assembly can be fixed and slide to preventing pressing from both sides and cut the fork, and under motor pump station's drive, sealed oil pump can carry out the handle accuse of vertical direction motion to preventing pressing from both sides and cut the fork for prevent pressing from both sides and cut the fork and can drive lift platform and do the ascending motion of vertical direction.

Drawings

Fig. 1 is a schematic overall structure diagram in the embodiment of the present application.

Fig. 2 is a schematic structural diagram of the lifting assembly and the steel frame in the embodiment of the application.

Fig. 3 is a schematic structural diagram of a lifting assembly in an embodiment of the present application.

Fig. 4 is a bottom view of fig. 3.

Description of reference numerals: 1. a frame; 2. a support platform; 21. a steel frame; 31. a drive motor; 32. a roller base; 33. a roller; 34. a carrier roller seat; 35. a carrier roller; 36. a roller sleeve; 4. a lifting platform; 41. a safety guard bar; 42. blocking strips; 5. sealing the oil pump; 51. a first screwed joint; 52. a second screwed joint; 53. an oil outlet pipe; 54. an oil return pipe; 55. driving the hydraulic cylinder; 56. an oil return tank; 6. a motor pump station; 7. anti-pinch scissor forks; 71. a first cross member; 72. a first mounting seat; 73. a second cross member; 74. a second mounting seat; 8. a chassis; 81. a height limiting column; 82. a stop block piece; 91. a first chute; 92. a first pulley; 93. a second chute; 94. a second pulley; 95. a first fixed seat; 96. a second fixed seat.

Detailed Description

In order to make the purpose, technical solution and advantages of the present application more clear, the present application is further described in detail below with reference to fig. 1 to 4 and the embodiments.

The embodiment of the application discloses steel structural frame's supplementary transmission device.

Referring to fig. 1, an auxiliary transmission device of a steel structure frame comprises two frames 1, wherein the frames 1 are fixed on the ground in a bolt connection mode, the two frames 1 are arranged in parallel, and a top view of each frame 1 is in a rectangular frame shape.

Referring to fig. 1 and 2, a roller seat 32 and a roller seat 34 are installed on the top surface of the frame 1, in the embodiment of the present application, two roller seats 32 are arranged on one frame 1, there are four roller seats 32 on the two frames 1, the roller seats 32 on the same frame 1 are respectively located at the input end and the output end of the frame 1, wherein, a driving motor 31 is installed on the side wall of the roller seat 32, a roller 33 is rotatably connected in the middle of the top of the roller seat 32, the output end of the driving motor 31 points to the axial extension line of the roller 33, and the roller 33 is assembled with the output shaft of the driving motor 31.

In the embodiment of the application, seven idler seats 34 are arranged on the same rack 1, correspondingly, fourteen idler seats 34 are arranged on two racks 1, the seven idler seats 34 on a single rack 1 are equidistantly arranged between two roller cylinder seats 32, the axial extension directions of the idler seats 34 on the two racks 1 are consistent, an idler roller 35 is rotatably connected in the middle of the top of the idler roller seat 34, and an idler roller sleeve 36 is sleeved on the outer wall of the idler roller 35.

The driving motor 31 can drive the roller 33 to rotate, so that the steel frame 21 placed on the roller 33 and the carrier roller 35 can move forwards.

Referring to fig. 1 and 4, in order to be able to conveniently jack up and transfer the steel frame 21, a lifting assembly is arranged on the bottom surface between the two frames 1, the lifting assembly comprises a bottom frame 8, the bottom frame 8 is fixed on the ground in a bolt connection manner, first sliding grooves 91 are respectively arranged on the top surfaces of the two long sides of the bottom frame 8, a first pulley 92 is slidably connected with the middle part of the first sliding groove 91, a first fixing seat 95 is fixedly arranged on the top surface of one end of the bottom frame 8, two first pulleys 92 and two first fixing seats 95 are both arranged, a clamping scissor 7 is arranged on the top of the bottom frame 8, the side surface of the clamping-proof scissor 7 is in an X shape, two clamping-proof scissor 7 are arranged, the bottom of one end of the clamping-proof scissor 7 is connected with the first fixing seat 95 in a linkage shaft connection manner, the bottom of the end of the clamping-proof scissor 7, which is far away from the first fixing seat 95, is rotatably connected with the first pulley 92 (refer to fig. 3), install first crossbeam 71 between the bottom both sides wall relatively of two anti-pinch scissors 7, be fixed with second crossbeam 73 between the middle part both sides wall relatively of two anti-pinch scissors 7, make anti-pinch scissors 7 install the top surface at chassis 8 steadily, and, the setting of first crossbeam 71 and second crossbeam 73 can widen two and prevent the space between the scissors 7, thereby prevent to prevent that the anti-pinch scissors 7 accident from pressing from both sides other article, make anti-pinch scissors 7 safer in the use, reliable.

Lift platform 4 is installed at the top surface of preventing pressing from both sides scissors 7, lift platform 4's plan view is the rectangular surface, install second fixing base 96 at the one end of the long limit bottom surface of lift platform 4, second fixing base 96 is located the vertical direction of first pulley 92 (refer to fig. 3), there is second pulley 94 at the long limit bottom surface sliding connection of lift platform 4, second pulley 94 is located the one end of keeping away from second fixing base 96, second pulley 94 is located the vertical direction of first fixing base 95, second fixing base 96 and second pulley 94 all have two, the mounting means who adopts the universal driving shaft to be connected between the one end top of preventing pressing from both sides scissors 7 and the second fixing base 96 is connected, prevent pressing from both sides scissors 7 and keep away from the one end top of second fixing base 96 and rotate with second pulley 94 and be connected, make lift platform 4 can steadily fix the top surface of preventing pressing from both sides scissors 7.

Referring to fig. 4, a motor pump station 6 and a sealing oil pump 5 are mounted on a top surface of the chassis 8 close to the first fixed seat 95, an output shaft of the motor pump station 6 is assembled and connected with the sealing oil pump 5, a first mounting seat 72 is disposed on a top surface of the first cross beam 71, the first mounting seat 72 is fixed to the first cross beam 71 in a threaded connection manner, a second mounting seat 74 is disposed on a top surface of the second cross beam 73 (see fig. 3), the second mounting seat 74 is also fixed to the second cross beam 73 in a threaded connection manner, the sealing oil pump 5 includes a driving hydraulic cylinder 55, one end of the driving hydraulic cylinder 55 is fixedly connected to the first mounting seat 72, and the other end of the driving hydraulic cylinder 55 is fixedly connected to the second mounting seat 74, so that the driving hydraulic cylinder 55 can be stably connected between the first mounting seat 72 and the second mounting seat 74.

The sealed oil pump 5 further comprises an oil return tank 56, a first screwing joint 51 is mounted on the side wall of the oil return tank 56, a second screwing joint 52 is mounted on the side wall of the driving hydraulic cylinder 55, the number of the first screwing joint 51 and the number of the second screwing joint 52 are two, an oil outlet pipe 53 is in threaded connection between the middle of one first screwing joint 51 and the middle of one second screwing joint 52, and oil return pipes 54 are in threaded connection between the middle of the other two first screwing joints 51 and the middle of the second screwing joint 52.

In the embodiment of the present application, when the motor pump station 6 is powered to rotate forward, the hydraulic pump in the motor pump station 6 generates pressure oil, the electromagnetic coil generates electromagnetic force to lift the closing member from the valve seat, the valve is opened, the pressure oil flows from the hydraulic pump to the driving hydraulic cylinder 55 along the oil outlet pipe 53, so that the driving hydraulic cylinder 55 extends to jack the second beam 73 (refer to fig. 3), so that the driving hydraulic cylinder 55 drives the second pulley 94 to move along the second chute 93 in a direction approaching the second fixed seat 96, meanwhile, the first pulley 92 moves along the first chute 91 (refer to fig. 1) in a direction approaching the first fixed seat 95, so that the lifting platform 4 can move upward, when the first pulley 92 and the second pulley 94 move to the end, the lifting platform 4 reaches the highest state, the motor pump station 6 loses power to eliminate the electromagnetic force, the spring in the motor pump station 6 presses the closure member against the valve seat for closing the valve, so that the lifting platform 4 can be stopped at a certain height without slipping off.

When the motor pump station 6 is reversely rotated by electricity, the electromagnetic coil generates electromagnetic force to lift the closing member from the valve seat, the valve is opened to drive the hydraulic cylinder 55 to do contraction action, so that the pressure oil flows back from the drive hydraulic cylinder 55 to the return tank 56 along the return line, the drive hydraulic cylinder 55 makes a retracting motion, so that the driving hydraulic cylinder 55 drives the second pulley 94 to move along the second sliding slot 93 in a direction away from the second fixed seat 96, meanwhile, the first pulley 92 moves along the first sliding slot 91 (refer to fig. 1) in a direction away from the first fixed seat 95, thereby moving the lifting platform 4 downwards, when the first and

second pulleys

92, 94 are moved to the end, lifting platform 4 descends to the lowest state, and motor pump station 6 loses the electricity and makes the electromagnetic force disappear, and the spring in motor pump station 6 is pressed the closure on the disk seat for the valve is closed, thereby makes lifting platform 4 can stably descend in appointed height department.

Referring to fig. 3, in order to facilitate the control of the lifting condition of the lifting platform 4 and prevent the slippage distance of the clipping fork 7, the outer side surface of the clipping fork 7 far away from one end of the first fixing seat 95 is respectively provided with the stopping separation blade 82, the side surface of the stopping separation blade 82 is rectangular, the stopping separation blade 82 has two blocks, through rotating the stopping separation blade 82, when the long-edge bottom surface of the stopping separation blade 82 is attached to the long-edge top surface of the bottom frame 8, the side surface of the stopping separation blade 82 is abutted to the inner side wall of the short edge of the bottom frame 8, so that the first pulley 92 is stopped to move in the direction far away from the first fixing seat 95.

In order to avoid the falling of the lifting platform 4, the obstacle can be collided when the lifting platform 4 falls, the peripheral wall of the lifting platform 4 is provided with the safety protection bars 41, the safety protection bars 41 are fixed on the peripheral wall of the lifting platform 4 in a glue sticking mode, meanwhile, the height limiting columns 81 are respectively installed at four corners of the top surface of the underframe 8, the four height limiting columns 81 are four, the side surfaces of the height limiting columns 81 are rectangular surfaces, the extending direction of the height limiting columns 81 is consistent with the vertical upward movement direction of the anti-pinch scissors 7, in the descending process of the lifting platform 4, when the safety protection bars 41 are pressed against the height limiting columns 81, the lifting platform 4 can stop continuing to move downwards, the use safety performance of the lifting platform 4 is improved, meanwhile, the damage caused by the direct collision of the lifting platform 4 and the height limiting columns 81 is avoided, and the service life of the lifting platform 4 is prolonged to a certain extent.

Referring to fig. 1 and 2, the number of lifting units is determined according to the circumstances, in this embodiment of the application, the lifting units are three, three lifting units are equidistantly arranged between two racks 1, a supporting platform 2 is arranged on the top surface of a lifting platform 4, the supporting platform 2 has one block, the top view of the supporting platform 2 is in a rectangular frame shape, the length direction of the supporting platform 2 is consistent with the length direction of the racks 1, the top surface of the lifting platform 4 is attached to the bottom surface of the supporting platform 2, the lifting platform 4 can move the supporting platform 2 in the vertical direction, the supporting platform 2 is jacked up through the lifting platform 4, a steel frame 21 placed on the top surface of the supporting platform 2 can also be jacked up, so that the steel frame 21 cannot be moved forward under the action of a roller 33 and a carrier roller 35, and the steel frame 21 can be conveniently hoisted up and transferred.

In order to stably place the steel frame 21 on the top surface of the lifting platform 4, the barrier strip 42 is fixedly installed in the middle of the top surface of the lifting platform 4, the extending direction of the barrier strip 42 is consistent with the width direction of the lifting platform 4, the side wall of the center shaft of the supporting platform 2 is attached to the side wall of the barrier strip 42, and the steel frame 21 can be prevented from deviating towards the left side and the right side in the jacking process of the supporting platform 2 by the lifting platform 4.

The implementation principle of the auxiliary transmission device of the steel structure frame is as follows:

the driving motor 31 can drive the roller 33 to rotate, so that the steel frame 21 placed on the roller 33 and the carrier roller 35 also moves forwards.

When the motor pump station 6 is powered to rotate forward, the hydraulic pump generates pressure oil, the closing member is lifted from the valve seat by electromagnetic force, the valve is opened, the pressure oil flows from the hydraulic pump to the driving hydraulic cylinder 55 along the oil outlet pipe 53, so that the driving hydraulic cylinder 55 is extended, the driving hydraulic cylinder 55 is extended to jack the second cross beam 73, the second pulley 94 is close to the second fixing seat 96, and the first pulley 92 is close to the first fixing seat 95, so that the lifting platform 4 can move upwards.

The motor pump station 6 loses electricity, the electromagnetic force disappears, and the spring in the motor pump station 6 presses the closing member on the valve seat, so that the valve is closed, and the lifting platform 4 can be stopped at a certain height without sliding.

The upward movement of the lifting platform 4 drives the support platform 2 to move upward, so that the steel frame 21 is jacked up.

When the motor pump station 6 is powered to rotate reversely, the closing member is lifted from the valve seat by electromagnetic force, the valve is opened, the hydraulic cylinder 55 is driven to contract, the pressure oil flows back to the oil return tank 56, the second pulley 94 moves in the direction away from the second fixed seat 96, and the first pulley 92 moves in the direction away from the first fixed seat 95, so that the lifting platform 4 moves downwards.

The motor pump station 6 loses electricity, the electromagnetic force disappears, the spring in the motor pump station 6 presses the closing part on the valve seat, so that the valve is closed, the lifting platform 4 can stably descend to the lowest point, the steel frame 21 can be easily conveyed and jacked, the manpower and the production cost are saved, and the efficiency of transferring the steel knot frame is improved.

The above are all preferred embodiments of the present application, and the present embodiment is only explained for the present application, and the protection scope of the present application is not limited by this, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a steel construction frame's supplementary transmission device, is including frame (1), and frame (1) is installed subaerial, its characterized in that, transmission assembly is installed at the top of frame (1), transmission assembly is used for transmitting steel frame (21), two ground between frame (1) is provided with lifting unit, lifting platform (4) are installed to lifting unit's top surface, lifting platform's (4) top surface is provided with supporting platform (2), lifting unit is used for control lifting platform (4) are the ascending motion of vertical side.

2. The auxiliary conveying device for the steel structural frame as claimed in claim 1, wherein the conveying assembly comprises: a roller seat (32) arranged on the top surface of the frame (1); a driving motor (31) arranged on the side wall of the roller seat (32); a roller (33) assembled at the output end of the driving motor (31); a roller seat (34) arranged on the top surface of the frame (1); the carrier roller (35) is rotatably connected to the middle part of the carrier roller seat (34); the roller sleeve (36) is sleeved on the outer wall of the carrier roller (35), the output end of the driving motor (31) points to the side wall of the roller seat (32), and the roller (33) is located in the middle of the roller seat (32).

3. The auxiliary conveying device of a steel structural frame as claimed in claim 1, wherein the lifting assembly comprises: a chassis (8) mounted on the ground; a sliding assembly mounted between the bottom of the lifting platform (4) and the top of the base frame (8); an anti-pinch scissor fork (7) mounted on the top of the sliding component; a sealing oil pump (5) mounted on the top of the chassis (8); install motor pump station (6) on chassis (8) top surface, wherein, sliding assembly is used for right prevent pressing from both sides and cut fork (7) and fix and slide, motor pump station's (6) output is directional sealed oil pump (5), sealed oil pump (5) are used for right prevent pressing from both sides and cut fork (7) and carry out vertical direction motion control.

4. The auxiliary conveying device of a steel structural frame as claimed in claim 3, wherein the sliding assembly comprises: first sliding grooves (91) arranged on the top surfaces of two long sides of the bottom frame (8); a first pulley (92) slidably connected to a middle portion of the first sliding groove (91); a first fixed seat (95) arranged on the top surface of one end of the underframe (8); second sliding chutes (93) arranged on the bottom surfaces of the two long sides of the lifting platform (4); a second pulley (94) slidably connected to the middle of the second sliding groove (93); install second fixing base (96) of lift platform (4) bottom surface, wherein, prevent pressing from both sides and cut fork (7) and keep away from the middle part of two ends and first pulley (92) of first fixing base (95) rotates and is connected, prevent pressing from both sides and cut fork (7) and be close to two ends of first fixing base (95) with the middle part swing joint of first fixing base (95), prevent pressing from both sides and cut fork (7) and keep away from two ends of second fixing base (96) rotate with the middle part of second pulley (94) and be connected, prevent pressing from both sides and cut fork (7) and be close to two ends of second fixing base (96) with the middle part swing joint of second fixing base (96).

5. The auxiliary conveying device of the steel structure frame as claimed in claim 3, wherein the top surfaces of the two short sides of the bottom frame (8) are respectively provided with height limiting columns (81).

6. Auxiliary conveying device for steel structural frames according to claim 1, characterized in that the peripheral wall of the bottom surface of the lifting platform (4) is provided with safety bars (41).

7. The auxiliary transmission device of a steel structure frame as claimed in claim 4, wherein the outer side wall of the anti-pinch scissor (7) far away from one end of the first fixing seat (95) is provided with a stop catch (82).

8. The auxiliary conveying device for the steel structure frame as claimed in claim 1, wherein the top surface of the lifting platform (4) is provided with a barrier strip (42), and the length direction of the barrier strip (42) is consistent with the length direction of the lifting platform (4).