CN116969303A - Steel roof lifting device - Google Patents

Abstract

The application discloses steel roof hoisting equipment and a hoisting method, which relate to the technical field of steel structure construction and comprise a limiting device and a hoisting structure for being installed on the top of a concrete structure column, wherein the hoisting structure comprises a fixing component and a lifting device; the limiting device comprises a rail fixed on the side wall of the concrete structure column and an anti-shaking component arranged in the rail in a sliding way; the lifting device comprises a sling for being connected with the steel roof, and a connecting piece for being connected with the anti-shaking component is fixed on the sling. The application has the effect of reducing shaking in the lifting process of the steel roof.

Description

Steel roof lifting device

Technical Field

The application relates to the technical field of steel structure construction, in particular to steel roof hoisting equipment and a hoisting method.

Background

The bent structure adopts two rows of concrete structural columns as supports, and steel roofs in truss form are hoisted on the concrete structural columns one by one, so that an integral stressed framework of the steel structure is finally formed.

In actual construction, after each steel roof is assembled on the ground, the steel roof is hoisted above the concrete column by using a crane, and two ends of the steel roof are fixedly connected with embedded parts on the top surface of the concrete column. For the narrow construction area, the construction environment of a crane is inconvenient to set, a lifting device is usually fixed at the top end of a concrete column, and the lifting device is utilized to hoist a steel roof.

Lifting devices are arranged above the two concrete columns, lifting hooks of the two lifting devices are fixed at two ends of the assembled steel roof, and the steel roof is synchronously lifted by the two lifting devices, so that the steel roof is lifted.

The lifting device lifts the steel roof upwards through the sling, so that the sling is easy to shake in the lifting process, and the steel roof is caused to shake; the steel roof has larger volume and heavier weight, and if the steel roof shakes, the steel roof easily impacts the concrete structural column, thereby damaging the concrete structural column; or the side pressure can be applied to the lifting device when the steel roof shakes, so that the lifting device is difficult to keep stable stress, and construction accidents occur.

Disclosure of Invention

The application provides steel roof hoisting equipment for improving the condition that a steel roof is easy to shake in the hoisting process.

The application provides steel roof hoisting equipment, which adopts the following technical scheme:

a steel roof lifting apparatus comprising:

the lifting structure is arranged on the top of the concrete structure column and comprises a fixing assembly and a lifting device, wherein the fixing assembly is used for being fixedly connected with the concrete structure column, the lifting device is arranged on the fixing assembly in a sliding manner, and the lifting device is used for lifting the steel roof;

the limiting device comprises a track fixed on the side wall of the concrete structure column and an anti-shaking assembly arranged in the track in a sliding manner;

the lifting device comprises a sling for being connected with the steel roof, and a connecting piece for being connected with the anti-shaking component is fixed on the sling.

By adopting the technical scheme, when a steel roof is hoisted, slings of the two lifting devices are respectively connected to two ends of the steel roof, the lifting devices are fixed by using the fixing components on the two concrete structural columns, and the steel roof is lifted upwards by using the lifting devices;

the anti-shaking component on the limiting component is fixedly connected with the sling, the anti-shaking device slides along the track when the steel roof is lifted upwards, and at the moment, the sling can be limited to shake through the limiting function of the track, so that the shaking of the steel roof during lifting is reduced, and the safety of the steel roof in the lifting process is improved.

Optionally, prevent shaking the subassembly and including sliding the piece that slides that sets up in the track, be fixed with the connecting rod on the piece that slides, the one end that the connecting rod kept away from the piece that slides is fixed with the locking component who is used for dismantling the connection with the connecting piece.

By adopting the technical scheme, the locking component is fixedly connected with the connecting piece so as to realize the position fixation between the sling and the anti-shaking component, thereby controlling the shaking of the sling through the anti-shaking component; when the sling lifts the steel roof upwards, the connecting piece rises along with the lifting, and the connecting rod and the sliding block are driven to slide upwards along the track.

Optionally, the locking component includes the riser of fixing on the connecting rod, the plane that the riser is located is perpendicular with the connecting rod axis, be fixed with two parallel spaced cardboard on the connecting plate, two clearance between the cardboard is used for supplying the connecting piece grafting, be provided with the mounting of locking cardboard and riser position between riser and the cardboard.

Through the technical scheme, after the clamping plate is inserted between the two vertical plates, the clamping plate and the vertical plate can be fixed through the fixing piece, the fixing piece can be a bolt and a nut penetrating through the vertical plates and the clamping plate, the locking assembly is simple and quick to use, and the position fixing between the clamping plate and the anti-shaking assembly can be quickly realized.

Optionally, the side walls on two sides of the clamping plate are all in threaded connection with short rods, the short rods are perpendicular to the side walls of the clamping plate, long rods are fixed at one ends of the short rods, far away from the clamping plate, of the short rods, the long rods are perpendicular to the short rods, and the long rods and the short rods are in the same horizontal plane;

two long rods with two ends on the same axis of a steel roof are detachably connected.

By adopting the technical scheme, when the steel roof is lifted, if the lifting heights of the two ends of the steel roof are inconsistent, the steel roof is easy to incline, so that the whole steel roof is stressed unstably, and construction accidents are generated; the short rods and the long rods are arranged and fixedly connected with the two sides of the clamping plate, so that the long rods and the short rods at the two ends of the steel roof are spliced to form a quadrilateral frame; when the height planes of the two ends of the steel roof are different, the bending moment at the corner of the quadrangular frame is overlarge, so that the higher end of the steel roof is limited to be lifted upwards continuously, and at the moment, constructors can readjust the lifting heights of the two ends of the steel roof, so that the two ends of the steel roof are at the same horizontal height, and then the steel roof is lifted continuously; the short rods and the long rods can reduce the occurrence of inconsistent heights of two ends of the steel roof in the lifting process of the steel roof, and improve the stability and safety of the steel roof in the lifting process of the steel roof.

Optionally, along orbital orbit interval in the track is provided with a plurality of restriction subassembly, restriction subassembly includes two revolving boards of being connected with the track lateral wall rotation, and two revolving boards interval sets up, revolving boards can only rotate towards concrete structure post roof, and revolving boards remain the level under the natural state.

By adopting the technical scheme, the sliding block can only slide upwards along the track and cannot move downwards along the track, when the heights of the two ends of the steel roof are inconsistent, the sliding block can move downwards to adapt to the height difference in order to resist the distortion of the joint of the short rod and the long rod, so that the bending moment born by the joint of the upper rod and the short rod is reduced; if the sliding block is difficult to slide upwards, the capacity of the sliding block to move downwards to resist deformation is reduced, so that the long rod and the short rod can better limit the height displacement of the two ends of the steel roof.

Optionally, the fixing component comprises a plurality of brackets fixed on opposite side walls of the concrete structure column, and the brackets are fixed on adjacent side walls of the track;

each bracket is fixedly provided with a stand column, one end, far away from the bracket, of each stand column is fixedly provided with a lifting frame body, one side, close to the steel roof, of each lifting frame body is extended to form a plurality of parallel lengthening beams, the ends of the lengthening beams are fixedly provided with sliding channels, the length directions of the sliding channels are perpendicular to the length directions of the lengthening beams, and the lifting device is arranged on the sliding channels in a sliding mode.

By adopting the technical scheme, the bracket, the upright post and the lifting frame body are arranged to strengthen the strength of the fixing component, so that the lifting device arranged on the fixing component can bear the gravity of the steel roof and smoothly lift the steel roof; the lengthening beam is arranged, so that when the lifting device lifts the steel roof upwards, the steel roof is not easy to interfere with the concrete structural column, and can be lifted upwards smoothly; the sliding way is arranged to provide a fixed platform for the lifting device.

Optionally, the long strip hole that supplies the hoist cable to pass is offered along its length direction on the passageway that slides, long strip hole does not run through the passageway both ends that slide, just be provided with the locating component that is used for fixed hoisting device position on the passageway that slides.

By adopting the technical scheme, when the lifting device is fixed on the sliding channel, the sling can pass through the strip hole and be fixed on the steel house cover; the long strip holes are arranged, so that the lifting device can slide along the long strip holes, when the steel roof is lifted upwards, the positioning assembly is utilized to lock the position of the lifting device, and when the steel roof is lifted to the designed height, constructors continue to assemble the structures at two ends of the steel roof in the air, so that the steel roof can be supported on the column tops of the concrete structure.

The concrete structure column top is usually provided with an embedded part, and the steel roof is fixed with the concrete structure column through the embedded part; when the steel roof and the embedded part are fixed, the steel roof needs to be horizontally slipped, so that the steel roof and the embedded part are aligned, and the steel roof can be fixed; after the steel roof is lifted to the design position, the connection between the anti-shaking component and the sling is released, and the lifting device can be moved along the strip hole at the moment, so that the horizontal position of the steel roof is adjusted.

Optionally, the locating component includes two stopper, first screw hole has all been seted up at the both ends of stopper, it is equipped with a plurality of second screw hole to slide on the way along the way length direction interval that slides, the second screw hole is provided with two rows, the locating component still includes the high strength bolt of threaded connection in first screw hole and second screw hole simultaneously.

Through adopting above-mentioned technical scheme, when needing fixed hoisting device position, place the stopper in hoisting device's both sides to with the stopper pass through high-strength bolt fastening on the passageway that slides can, through reasonable interval that sets up the second screw hole, make two stoppers fix on the passageway that slides, hoisting device presss from both sides tightly between two stoppers, thereby make hoisting device can stabilize upwards promote the steel roof.

Optionally, sliding grooves are arranged on two sides of the strip hole in parallel at intervals;

a sliding structure is fixed on the lifting device and comprises two sliding blocks which are respectively inserted into the sliding grooves;

the side wall of the lifting device is fixedly provided with a driving device for driving the lifting device to slide along the sliding path.

By adopting the technical scheme, when the position of the lifting device needs to be adjusted, and the lifting device slides along the strip hole, the fixing of one of the limiting blocks is released, the lifting device is driven by the driving device to slide along the strip hole, and the sliding block is arranged to limit the moving path of the lifting device and facilitate the movement of the lifting device; the sliding groove is arranged to limit the displacement of the lifting device, so that the lifting device is not easy to separate from a sliding channel, and serious construction accidents are caused.

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

1. according to the application, the anti-shaking component is arranged, so that the shaking of the sling can be limited when the lifting device lifts the steel roof upwards, the shaking condition in the lifting process of the steel roof is relieved, and the construction process is more stable and safer;

2. the short rods and the long rods are arranged on the clamping plates, the two opposite long rods are connected and fixed, when the lifting heights of the two ends of the steel roof are inconsistent, the positions of the long rods and the short rods are locked, the steel roof is difficult to continuously lift upwards, the occurrence of inconsistent lifting heights of the two ends of the steel roof in the lifting process of the steel roof is reduced, and the occurrence of construction accidents is reduced;

3. the strip holes are formed in the sliding channel, so that the lifting device can slide along the strip holes, when the steel roof is lifted to the design position and assembled in the air, the steel roof can be smoothly installed on the concrete structural column through horizontal sliding, and the operation is simple and convenient.

Drawings

Fig. 1 is a schematic view of an overall structure of a roof of a steel roof when lifted according to an embodiment of the present application;

FIG. 2 is a partial schematic view of an embodiment of the present application for showing a securing assembly and a lifting device;

FIG. 3 is a schematic view showing a partial structure of a track structure according to an embodiment of the present application;

fig. 4 is a partial structural view illustrating an anti-sloshing assembly according to an embodiment of the present application.

Reference numerals illustrate: 1. a fixing assembly; 11. a bracket; 12. a column; 13. hoisting the frame body; 14. adding a long beam; 15. a slip path; 151. a slit hole; 152. a second threaded hole; 153. a chute; 2. a lifting device; 21. a sling; 22. a connecting piece; 23. a sliding structure; 231. a slide block; 232. a mounting plate; 24. a lifter; 3. a track; 31. a rotating plate; 4. an anti-sloshing assembly; 41. a sliding block; 42. a connecting rod; 43. a locking assembly; 431. a riser; 432. a clamping plate; 44. a fixing member; 45. a short bar; 46. a long rod; 5. a limiting block; 51. a first threaded hole; 6. a high-strength bolt; 7. a concrete structural column; 8. steel roof.

Detailed Description

The application is described in further detail below with reference to fig. 1-4.

The steel roof hoisting device disclosed by the embodiment of the application is explained by taking hoisting of a steel roof 8 as an example with reference to fig. 1, and concrete structural columns 7 for supporting the steel roof 8 are poured at two ends of the steel roof 8.

Referring to fig. 1, a steel roof hoisting apparatus includes a hoisting structure provided at a top of a concrete structure column 7, the hoisting structure including a fixing assembly 1 fixed at the top of the concrete structure column 7, and a lifting device 2 for lifting a steel roof 8, the lifting device 2 being mounted on the fixing assembly 1.

Referring to fig. 1 and 2, the fixing assembly 1 comprises four brackets 11 fixed on the side wall of the concrete structural column 7, the brackets 11 are of a concrete cast-in-situ structure, the brackets 11 and the concrete structural column 7 are integrally cast, and steel bars in the brackets 11 are bound and fixed with a steel bar cage of the concrete structural column 7. The brackets 11 are arranged on a plane parallel to the plane of the concrete structural column 7 and the steel roof 8, and the four brackets 11 are uniformly and symmetrically arranged on two opposite side walls of the concrete structural column 7. The bracket 11 is fixedly provided with a stand column 12, the stand column 12 is made of steel, the stand column 12 is welded on the steel bars in the bracket 11, and part of the stand column 12 is poured in the bracket 11. A hoisting frame body 13 is fixed at one end, far away from the bracket 11, of the upright posts 12, the hoisting frame body 13 is fixedly connected with the ends of the plurality of upright posts 12 at the same time, and the hoisting frame body 13 is of a square frame structure; two mutually parallel extension beams 14 extend out of one side of the lifting frame body 13, which is close to the steel roof 8, a sliding channel 15 is fixed at the end of the extension beam 14, which is far away from the lifting frame body 13, the sliding channel 15 is of a square cylinder structure, and the length direction of the sliding channel 15 is perpendicular to the length direction of the extension beam 14.

Referring to fig. 2, the upright post 12, the lifting frame 13, the extension beam 14 and the sliding channel 15 are all made of Q335B steel, welded and fixed between the upright post 12 and the lifting frame 13, and between the extension beam 14 and the sliding channel 15, the welding seams are all penetration welding seams, the welding seam grade one grade, and ultrasonic flaw detection is performed according to the specification, so that the strength of the fixing assembly 1 can bear the tensile force and the bending moment force applied when the steel roof 8 is lifted.

Referring to fig. 1 and 2, a long hole 151 is formed in the sliding path 15 along the length direction of the sliding path 15, two ends of the long hole 151 do not penetrate through the sliding path 15, and the lifting device 2 is mounted on the sliding path 15. The lifting device 2 comprises a lifter 24 and a sling 21, wherein one end of the sling 21 is fixed on the lifter 24, and the other end of the sling 21 is used for being bound on the end head of the steel roof 8 so as to realize the function of lifting the steel roof 8 upwards through the lifting device 2.

Referring to fig. 1 and 2, the lifting device 2 can slide along the elongated hole 151, specifically, two sides of the elongated hole 151 are provided with parallel sliding grooves 153 at intervals, the length of the sliding grooves 153 is shorter than that of the elongated hole 151, the lifter 24 is fixed with a sliding structure 23, the sliding structure 23 comprises a mounting plate 232 fixed on the lifter 24, two ends of the mounting plate 232 are respectively and integrally provided with a sliding block 231 for being inserted into the sliding grooves 153, the sliding block 231 abuts against the bottom wall of the sliding groove 153, a driving device is further connected to the side wall of the mounting plate 232, the driving device is specifically a winch capable of dragging the lifting device 2 to slide along the sliding grooves 153, the winch is arranged on the ground, the lifting device 2 is pulled to move by a guy cable, in order to enable the winch to normally operate, a roller for guy cable to slide is also arranged at the end of the sliding channel 15, the driving device and the roller are not shown in the figure.

Referring to fig. 1 and 2, a positioning assembly is further arranged on the sliding channel 15, the positioning assembly comprises two limiting blocks 5, the limiting blocks 5 are cuboid steel blocks, the positions close to two ends of the limiting blocks 5 are provided with first threaded holes 51, only one limiting block 5 is shown in the drawing, a plurality of second threaded holes 152 are arranged on the sliding channel 15 at intervals along the length direction of the sliding channel 15, the second threaded holes 152 are provided with two rows, and when the lifting device 2 lifts the steel roof 8 upwards, the lifting device 2 is required to be locked in position. At this time, the stopper 5 is moved to align the first screw hole 51 with the second screw hole 152, and the high-strength bolts 6 are screwed into the first screw hole 51 and the second screw hole 152, so that the positions of the stopper 5 and the sliding track 15 can be fixed, and only one high-strength bolt 6 is shown in the figure. The interval of two adjacent second screw holes 152 is rationally set up for when two stopper 5 positions are fixed, can be with hoisting device 2 centre gripping between two stopper 5, in order to realize hoisting device 2's position locking.

Referring to fig. 3 and 4, the steel roof hoisting device of the present application further comprises a limiting device comprising rails 3 fixed on opposite side walls of the concrete structure columns 7 at both ends of the steel roof 8, and an anti-sway module 4 slidably disposed in the rails 3. The anti-shake assembly 4 comprises a sliding block 41 sliding in the track 3, a connecting rod 42 is fixed on the side wall of the sliding block 41, and a locking assembly 43 is fixed at the end of the connecting rod 42 away from the sliding block 41. The locking assembly 43 comprises a vertical plate 431 fixed with the connecting rod 42, a plane of the vertical plate 431 is vertical to the length direction of the connecting rod 42, and two clamping plates 432 which are parallel to each other and spaced from each other are fixed on the surface of the vertical plate 431; the sling 21 is fixedly provided with a connecting piece 22, the connecting piece 22 is specifically a steel plate which can be inserted into a gap between two clamping plates 432, the clamping plates 432 and the connecting piece 22 are provided with through holes, when the connecting piece 22 is inserted between the two clamping plates 432, the through holes on the clamping plates 432 are communicated with the through holes on the connecting piece 22, a fixing piece 44 for locking the positions of the clamping plates 432 and the connecting piece 22 is arranged between the clamping plates 432 and the connecting piece 22, and the fixing piece 44 can be a bolt and a nut.

Referring to fig. 1 and 3, the short rods 45 are screwed on both side walls of the clamping plate 432, the short rods 45 are perpendicular to the side walls of the clamping plate 432, the long rods 46 are fixed at the ends of the short rods 45 far away from the clamping plate 432, the long rods 46 and the short rods 45 are in the same horizontal plane, and the length of the long rods 46 is perpendicular to the length of the short rods 45. The end of the long rod 46 far away from the short rod 45 is provided with a thread section, and two long rods 46 with two ends of a steel roof truss on the same axis are connected through a steel bar sleeve.

Referring to fig. 1 and 3, when the steel roof 8 is lifted, the long rods 46 at two sides of the steel roof 8 are connected in a one-to-one correspondence manner, so that the short rods 45 and the long rods 46 form a rectangular frame, when the steel roof 8 is lifted, if the lifting heights of two ends of the steel roof 8 are inconsistent, the rectangular frame formed by the short rods 45 and the long rods 46 bears bending moment force, and at the moment, the positions of the short rods 45 and the long rods 46 are blocked, so that displacement difference of two ends of the steel roof 8 is difficult to continuously increase, the continuous lifting of the steel roof 8 is limited, and the two ends of the steel roof 8 can be limited to be at the same horizontal height when the long rods 46 and the short rods 45 are arranged to lift the steel roof 8.

Referring to fig. 3, further, a plurality of limiting assemblies are disposed in the track 3 along the length direction of the track 3 at intervals, each limiting assembly includes two rotating plates 31 at the same level, the two rotating plates 31 are disposed at intervals, and the two rotating plates 31 are respectively connected with two side walls of the track 3 in a rotating manner. The swivel plate 31 is naturally kept horizontal, and the swivel plate 31 can only swivel in the direction of the top of the concrete structure column 7. The limiting component is arranged so that the sliding block 41 can only be lifted upwards, and is difficult to descend, and when the lifting heights of the two ends of the steel roof 8 are inconsistent, the sliding block 41 is difficult to slide downwards to resist bending moment and deformation at the short rod 45 and the long rod 46; in addition, when the lifting heights of the two ends of the steel roof 8 are inconsistent, and the anti-shake assembly 4 is blocked, the connection between the locking assembly 43 and the sling 21 needs to be released; after the connection between the locking component 43 and the sling 21 is released, the locking component 43 is difficult to slide down along the track 3 through the limiting component, so that a constructor can conveniently and well adjust the position of the steel roof 8 and then fixedly connect the locking component 43 with the sling 21 again.

The implementation principle of the steel roof hoisting equipment provided by the embodiment of the application is as follows: firstly, slings 21 on two concrete structural columns 7 are bound at two ends of a steel roof 8, a connecting piece 22 is inserted between two clamping plates 432, the positions of the clamping plates 432 and the connecting piece 22 are locked through fixing pieces 44, and at the moment, the lifting device 2 is locked between two limiting blocks 5.

The short rods 45 and the long rods 46 are connected to the side walls of the two sides of the clamping plate 432 in a threaded manner, and the two long rods 46 on the same axis are connected through the steel bar sleeve, so that four groups of short rods 45 and long rods 46 are enclosed into a rectangular frame body, and the two ends of the steel roof 8 are lifted upwards by the lifting device 2 until the steel roof 8 rises to the designed height.

In the lifting process of the steel roof 8, as the sling 21 is fixed on the anti-shaking component 4 through the connecting piece 22, the sliding block 41 slides along the track 3, so that the anti-shaking component 4 is not easy to move left and right, the swinging of the sling 21 is limited, the stability of the sling 21 in lifting can be improved, the swinging of the steel roof 8 in the lifting process is reduced, and the stability and safety of the steel roof 8 in lifting are improved.

Setting up quarter butt 45 and quarter butt 46 makes steel roof 8 promote the in-process, if the lifting height at steel roof 8 both ends is inconsistent, the rectangle framework card that quarter butt 46 and quarter butt 45 constitute is dead, restricts steel roof 8's further promotion, can reduce steel roof 8 and promote the in-process, and the difference in height at steel roof 8 both ends is more, causes steel roof 8 inclined situation to take place.

When the steel roof 8 is lifted to the position above the concrete structural columns 7, constructors continue to splice the residual structures of the steel roof 8 at the two ends of the existing steel roof 8 structure, after the steel roof 8 structure is spliced, the two ends of the steel roof 8 can be fixed on the tops of the two concrete structural columns 7, the steel roof 8 structure is supported through the concrete structural columns 7, and embedded plates for being fixedly connected with the steel roof 8 are embedded in the tops of the concrete structural columns 7.

The upper part of the rail 3 is not closed, so when the steel roof 8 is lifted above the concrete structural posts 7 by the lifting device 2, the sliding block 41 is separated from the rail 3, and the constructor can release the fixation between the anti-shake assembly 4 and the connecting piece 22 in the air. When the position of the steel roof 8 needs to be horizontally adjusted, and the steel roof 8 is aligned with the embedded plate above the concrete structure column 7, the limiting block 5 of the steel roof 8 in the sliding direction can be removed, the lifting device 2 is driven by the driving device to slide along the sliding groove 153 until the end head of the steel roof 8 is positioned right above the embedded plate, and the steel roof 8 is lowered again through the lifting device 2 at the moment, so that the steel roof 8 is propped against the embedded plate and the steel roof 8 is connected and fixed with the embedded plate, and the hoisting of the steel roof 8 can be completed.

After the hoisting is completed, the track 3 is detached from the concrete structure column 7, and the fixing component 1 is cut from the concrete structure column 7, so that all construction procedures of the steel roof truss are completed.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (9)

1. Steel roof lifting device, characterized by comprising:

the lifting structure is used for being installed on the top of a concrete structure column (7), and comprises a fixing assembly (1) and a lifting device (2), wherein the fixing assembly (1) is fixedly connected with the concrete structure column (7), the lifting device (2) is arranged on the fixing assembly (1) in a sliding manner, and the lifting device (2) is used for lifting a steel roof (8);

the limiting device comprises a track (3) fixed on the side wall of the concrete structure column (7) and an anti-shaking component (4) arranged in the track (3) in a sliding manner;

the lifting device (2) comprises a sling (21) used for being connected with the steel roof (8), and a connecting piece (22) used for being connected with the anti-shaking assembly (4) is fixed on the sling (21).

2. The steel roof lifting device according to claim 1, wherein: the anti-shake assembly (4) comprises a sliding block (41) which is arranged in the track (3) in a sliding mode, a connecting rod (42) is fixed on the sliding block (41), and a locking assembly (43) which is detachably connected with the connecting piece (22) is fixed at one end, away from the sliding block (41), of the connecting rod (42).

3. A steel roof lifting apparatus as claimed in claim 2, wherein: the locking assembly (43) comprises a vertical plate (431) fixed on the connecting rod (42), the plane of the vertical plate (431) is perpendicular to the axis of the connecting rod (42), two parallel spaced clamping plates (432) are fixed on the connecting plate, a gap between the two clamping plates (432) is used for being inserted by a connecting piece (22), and a fixing piece (44) for locking the clamping plates (432) and the vertical plate (431) is arranged between the vertical plate (431) and the clamping plates (432).

4. A steel roof lifting apparatus as claimed in claim 3, wherein: the side walls of two sides of the clamping plate (432) are respectively connected with a short rod (45) in a threaded manner, the short rods (45) are perpendicular to the side walls of the clamping plate (432), one end, far away from the clamping plate (432), of each short rod (45) is fixedly provided with a long rod (46), each long rod (46) is perpendicular to the corresponding short rod (45), and the long rods (46) and the short rods (45) are in the same horizontal plane;

two long rods (46) with two ends of a steel roof (8) on the same axis are detachably connected.

5. The steel roof lifting device according to claim 1, wherein: the track interval along track (3) is provided with a plurality of restriction subassembly in track (3), the restriction subassembly includes two revolving plates (31) of being connected with track (3) lateral wall rotation, and two revolving plates (31) interval set up, revolving plates (31) can only rotate towards concrete structure post (7) post top, and revolving plates (31) remain the level under the natural state.

6. The steel roof lifting device according to claim 1, wherein: the fixing assembly (1) comprises a plurality of brackets (11) fixed on opposite side walls of the concrete structure column (7), and the brackets (11) are fixed on adjacent side walls of the track (3);

every be fixed with stand (12) on bracket (11), the one end that bracket (11) was kept away from to stand (12) is fixed with hoist and mount support body (13), hoist and mount support body (13) are close to one side of steel roof (8) and stretch out have many parallel extension roof beam (14), many the end of extension roof beam (14) is fixed with and slides and says (15), slide and say (15) length direction and extension roof beam (14) length direction are perpendicular, hoisting device (2) slip sets up on sliding and says (15).

7. The steel roof lifting device of claim 6, wherein: the lifting device is characterized in that a strip hole (151) for a sling (21) to pass through is formed in the sliding channel (15) along the length direction of the sliding channel, the strip hole (151) does not penetrate through two ends of the sliding channel (15), and a positioning assembly for fixing the position of the lifting device (2) is arranged on the sliding channel (15).

8. The steel roof lifting device of claim 7, wherein: the locating component comprises two limiting blocks (5), first threaded holes (51) are formed in two ends of each limiting block (5), a plurality of second threaded holes (152) are formed in the sliding channel (15) at intervals along the length direction of the sliding channel (15), two rows of second threaded holes (152) are formed in the second threaded holes, and the locating component further comprises high-strength bolts (6) which are connected with the first threaded holes (51) and the second threaded holes (152) in a threaded mode simultaneously.

9. The steel roof lifting device of claim 7, wherein: both sides of the strip hole (151) are provided with sliding grooves (153) in parallel at intervals;

a sliding structure (23) is fixed on the lifting device (2), and the sliding structure (23) comprises two sliding blocks (231) which are respectively inserted into the sliding grooves (153);

the side wall of the lifting device (2) is fixedly provided with a driving device for driving the lifting device (2) to slide along the sliding channel (15).