阅读说明：本技术 一种建筑施工架 (Construction frame ) 是由 张晓文 于 2020-05-06 设计创作，主要内容包括：本发明涉及一种建筑施工架,包括若干立柱以及水平设置于所述立柱顶部的顶板,所述顶板下方水平设置有升降板,所述顶板设置有对所述升降板进行升降的升降组件,所述升降板顶部竖直设置有两组爬梯组件,所述升降板竖直开设有升降槽,所述升降板与所述升降槽滑动连接,所述升降板设置有对升降板进行固定的两组固定组件。本发明能调节施工架的高度,使施工架能适应不同高度的建筑施工。(The invention relates to a construction frame, which comprises a plurality of stand columns and a top plate horizontally arranged at the tops of the stand columns, wherein a lifting plate is horizontally arranged below the top plate, the top plate is provided with a lifting assembly for lifting the lifting plate, two groups of ladder stand assemblies are vertically arranged at the tops of the lifting plate, the lifting plate is vertically provided with a lifting groove, the lifting plate is in sliding connection with the lifting groove, and the lifting plate is provided with two groups of fixing assemblies for fixing the lifting plate. The invention can adjust the height of the scaffold, so that the scaffold can adapt to building construction with different heights.)

1. The utility model provides a construction frame, include a plurality of stands (1) and level set up in roof (2) at stand (1) top, its characterized in that: roof (2) below level is provided with lifter plate (3), roof (2) are provided with right lifter plate (3) carry out the lifting unit who goes up and down, the vertical two sets of cat ladder subassemblies that are provided with in lifter plate (3) top, lifter plate (3) are vertical to be seted up lift groove (4), lifter plate (3) with lift groove (4) sliding connection, lifter plate (3) are provided with two sets of fixed subassemblies that go on fixing lifter plate (3).

2. A construction frame as claimed in claim 1, wherein: the lifting assembly comprises a motor (5) arranged in the middle of the bottom surface of the top plate (2), a traction sheave (6) connected with an output shaft of the motor (5), two traction ropes (7) wound on the traction sheave (6) in opposite directions and guide wheels (8) arranged at the bottom of the top plate (2) and symmetrically arranged on two sides of the traction sheave (6), the two traction ropes (7) are respectively in sliding connection with the guide wheels (8) at corresponding positions, and one ends, far away from the traction sheave (6), of the two traction ropes (7) are connected with the top of the lifting plate (3).

3. A construction frame as claimed in claim 1, wherein: the ladder stand component comprises two sets of ladder frames (10) which are vertically arranged and a plurality of rungs (11) which are horizontally connected with the ladder frames (10), and the ladder frames (10) are slidably arranged in the lifting groove (4).

4. A construction scaffold as claimed in claim 3, wherein: adjacent spacing groove (12) have all been seted up to the face in opposite directions of stand (1), spacing groove (12) are followed the length direction of stand (1) extends the setting, ladder frame (10) sliding connection in spacing groove (12), a plurality of fixed orificess (23) have been seted up to spacing groove (12) tank bottom level, and is a plurality of fixed orifices (23) are followed the length direction of spacing groove (12) is linear to be arranged, fixed subassembly include the level set up in lifter plate (3) bottom and length direction with installation frame (14) that the length direction of step stick (11) is parallel, set up in installation cavity (15) in installation frame (14), rotate connect in gear (16), horizontal slip in installation cavity (15) in and be located respectively both sides about gear (16) and respectively with rack (17) that gear (16) meshed and connect in rack (17) are kept away from gear (16) And the inserting strip (18) is inserted and matched with the fixing hole (23) at one end.

5. A construction frame as claimed in claim 4, wherein: and two opposite end parts of the lifting plate (3) are respectively provided with a limiting block (13) which is in sliding connection with the limiting groove (12).

6. A construction scaffold as claimed in claim 3, wherein: two stabilizing rods (32) are horizontally arranged between the two ladder stand components, the stabilizing rods (32) are respectively connected with one of the ladder frames (10) of the two ladder stand components, the stabilizing rods (32) and the ladder frames (10) at the corresponding positions are fixed through first screws (33), and two groups of stabilizing mechanisms for respectively supporting the ladder stand components are arranged at the top of the top plate (2).

7. A construction frame as claimed in claim 6, wherein: the tops of the two stabilizing rods (32) are horizontally provided with the same pedal (34), and the pedal (34) and the stabilizing rods (32) are fixed through second screws (35).

8. A construction frame as claimed in claim 6, wherein: the stabilizing mechanism comprises a hollow rod (24) hinged to the top of the top plate (2) and far away from the end face of the top plate (2) and provided with an opening, a telescopic rod (25) connected to the inside of the hollow rod (24) in a sliding mode, a curved surface convex block (26) arranged on one end of the hollow rod (24) and linearly arranged on a ladder frame (10) close to one side of the top plate (2) and abutted against the curved surface convex block (26) and a fastening assembly used for fixing the hollow rod (24) and the telescopic rod (25).

9. A construction scaffold as claimed in claim 8, wherein: fastening components including set up in hollow pole (24) one side and length direction with the length direction of hollow pole (24) parallel and with bar hole (29), the perpendicular setting in the telescopic link (25) outside and slip wear to locate threaded rod (30) in bar hole (29) and be located hollow pole (24) outside and with threaded rod (30) threaded connection's adjusting nut (31).

10. A construction frame as claimed in claim 2, wherein: the all vertical connecting strip (36) that is provided with of position that is close to the corner all around roof (2) bottom surface, a plurality of connecting strip (36) bottom is connected with same protection shield (37), protection shield (37) are located motor (5), driving sheave (6) and leading wheel (8) below, protection shield (37) are seted up and are supplied round hole (38) that driving rope (7) passed.

Technical Field

The invention belongs to the technical field of construction frames, and particularly relates to a construction frame for a building.

Background

In order to obtain sufficient construction height during the construction of a building, a common tool is a scaffold, also called scaffold, for supporting people and materials during the construction or repair of the building. The construction frame has various types, and is divided into an outer scaffold and an inner scaffold according to the erected position; the scaffold can be divided into a wood scaffold, a bamboo scaffold and a steel pipe scaffold according to different materials; the scaffold is divided into a vertical rod type scaffold, a bridge type scaffold, a door type scaffold, a suspension type scaffold, a hanging type scaffold, a lifting type scaffold and a climbing type scaffold according to the structural form, and the scaffold is large in production fluidity, low in mechanization degree and complex in process due to the fact that the construction is carried out in the open air and high places, is influenced by natural climate, human factors and the like, and becomes a region with multiple safety accidents.

The prior Chinese patent with the publication number of CN208023926U discloses a conveniently-moved construction frame, which comprises a pedal platform, a support column and a fixed rod, wherein the support column and the fixed rod are both arranged at the bottom of the pedal platform, the fixed rod is arranged at one side of the support column, the bottom of the fixed rod is provided with a pulley, the bottom of the support column is provided with a containing cavity, a moving block is arranged in the containing cavity, the top and the bottom of the moving block are both provided with screw sockets, the support column is provided with a through hole and a screw rod, the screw rod passes through the through hole and is arranged in the screw socket, both sides of the pedal platform are provided with rotating plates, the rotating plates are arranged at the bottom of the pedal platform through rotating shafts, one side of the rotating plates is provided with a step rod, the other side of the rotating plates is provided with a storage box, the pedal platform is provided, convenient to use, the function is various.

The above technical solution has the following disadvantages: when the staff constructs the building, because the height difference of building, need be under construction to the building of multiple height, and the high rigidity of footboard platform can not be applicable to in the building of different heights, its practicality is lower.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a construction frame, which is suitable for buildings with different heights by arranging a ladder stand component capable of lifting.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a construction frame, include a plurality of stands and level set up in the roof at stand top, roof below level is provided with the lifter plate, the roof is provided with right the lifter plate carries out the lift subassembly that goes up and down, the vertical two sets of cat ladder subassemblies that are provided with in lifter plate top, the lifter plate is vertical has seted up the lift groove, the lifter plate with lift groove sliding connection, the lifter plate is provided with carries out two sets of fixed subassemblies that fix to the lifter plate.

Through adopting the above-mentioned technical scheme, lifting unit can highly adjust the lifter plate, thereby highly adjust the cat ladder subassembly, when the height of roof is not enough to adapt to the height of building, the height of lifter plate is increaseed through lifting unit, thereby promote the cat ladder subassembly, make the top of cat ladder subassembly can be higher than the roof, the staff can climb on the cat ladder subassembly, compared with the prior art, this scaffold can highly adjust it, thereby adapt to the not high building construction of co-altitude, and the setting of cat ladder subassembly not only is convenient for the staff and climbs the roof, can also improve the machining height of scaffold, thereby can carry out make full use of to the cat ladder subassembly.

The invention is further configured to: the lifting assembly comprises a motor arranged in the middle of the bottom surface of the top plate, a traction sheave connected with an output shaft of the motor in a key mode, two traction ropes wound on the traction sheave in opposite directions and guide wheels positioned at the bottom of the top plate and symmetrically arranged on two sides of the traction sheave, the two traction ropes are respectively in sliding connection with the guide wheels at corresponding positions, and one ends, far away from the traction sheave, of the two traction ropes are connected with the top of the lifting plate.

Through adopting above-mentioned technical scheme, motor drive towline rotates for two towlines can be convoluteed on the towline with opposite direction, through rolling two towlines, can the horizontally height of regulation lifter plate, thereby adjust the height of cat ladder subassembly, accomplish the back as the altitude mixture control of lifter plate, fix the lifter plate through fixed subassembly.

The invention is further configured to: the ladder stand component comprises two sets of vertically arranged ladder frames and a plurality of rungs horizontally connected with the ladder frames, and the ladder frames are slidably arranged in the lifting grooves in a penetrating mode.

Through adopting above-mentioned technical scheme, the setting up of ladder frame can play limiting displacement to the cat ladder subassembly, and the climbing of the staff of being convenient for of setting up of step on the rod.

The invention is further configured to: adjacent the spacing groove has all been seted up to the face in opposite directions of stand, the spacing groove is followed the length direction of stand extends the setting, ladder frame sliding connection in the spacing inslot, a plurality of fixed orificess have been seted up to spacing groove tank bottom level, and is a plurality of the fixed orifices is followed the length direction of spacing groove is linear to be arranged, fixed subassembly include the level set up in lifter plate bottom and length direction with step on the parallel installing frame of length direction of rod, set up in installation cavity, rotation in the installing cavity gear, horizontal slip in the installing cavity is located respectively both sides about the gear and respectively with gear engagement's rack and connect in the rack is kept away from gear one end and with the complex grafting strip is pegged graft to the fixed orifices.

Through adopting above-mentioned technical scheme, the setting up of spacing groove can play limiting displacement to the slip of ladder frame, improve the steadiness of ladder frame, when needs fix ladder frame, adjust the lifter plate to corresponding the height, make grafting strip and the fixed orifices that corresponds the position align, the running gear makes two sets of racks move with opposite direction, make two sets of racks be close to the spacing groove department that is close to with it gradually respectively, and make grafting strip peg graft in the fixed orifices that corresponds the position, thereby fix the lifter plate.

The invention is further configured to: and two opposite end parts of the lifting plate are respectively provided with a limiting block which is in sliding connection with the limiting groove.

Through adopting above-mentioned technical scheme, the setting of stopper can play limiting displacement to the slip of lifter plate, reduces rocking that the lifter plate produced at the lift in-process to improve the stability of lifter plate.

The invention is further configured to: two stabilizing rods are horizontally arranged between the two ladder stand assemblies and are respectively connected with one of the ladder frames of the two ladder stand assemblies, the stabilizing rods and the ladder frames at corresponding positions are fixed through first screws, and two groups of stabilizing mechanisms for respectively supporting the ladder stand assemblies are arranged at the top of the top plate.

Through adopting above-mentioned technical scheme, the setting of firm pole can improve the connection stability between two cat ladder subassemblies.

The invention is further configured to: the same pedal is horizontally arranged at the tops of the two stabilizing rods, and the pedal and the stabilizing rods are fixed through second screws.

Through adopting above-mentioned technical scheme, the setting of footboard can further improve the connection stability between two cat ladder subassemblies, simultaneously, still is convenient for staff's construction.

The invention is further configured to: firm mechanism including articulate in the roof top just keeps away from the terminal surface of roof is the hollow pole, the sliding connection that the opening set up in telescopic link in the hollow pole, set up in the telescopic link is kept away from the curved surface lug, the linear arrangement of hollow pole one end in the ladder frame is close to roof one side and with the butt piece of curved surface lug butt and be used for fixing hollow pole with the fastening components of telescopic link.

Through adopting above-mentioned technical scheme, when the height of the regulation cat ladder subassembly that corresponds, and fix the back to the cat ladder subassembly, according to the height of ladder frame, the hollow pole is pulled to the correspondence to adjust the length that the telescopic link stretches out the hollow pole, make hollow pole and telescopic link all be the tilt state, and make the curved surface lug be located the butt piece below that corresponds the position, then make curved surface lug and butt piece bottom butt, and fix hollow pole and telescopic link through fastening assembly.

The invention is further configured to: fastening component including set up in hollow pole one side and length direction with the length direction of hollow pole parallel and with the bar hole of the inside intercommunication of hollow pole, set up perpendicularly in the telescopic link outside and slide and wear to locate the downthehole threaded rod of bar and be located the hollow pole outside and with threaded rod threaded connection's adjusting nut.

Through adopting above-mentioned technical scheme, when needs are fixed the telescopic link, rotate adjusting nut, make adjusting nut tip support the tight hollow pole outside.

The invention is further configured to: the connecting strips are vertically arranged at the positions, close to the corners, of the periphery of the bottom surface of the top plate, the bottoms of the connecting strips are connected with a plurality of protection plates, the protection plates are located below the motor, the traction sheave and the guide wheel, and round holes for the traction ropes to pass through are formed in the protection plates.

Through adopting above-mentioned technical scheme, the setting of protection shield can play the guard action to motor, driving sheave and leading wheel.

In conclusion, the beneficial technical effects of the invention are as follows:

1. the height of the lifting plate can be adjusted by the lifting assembly, so that the height of the ladder stand assembly is adjusted, when the height of the top plate is not enough to adapt to the height of a building, the height of the lifting plate is increased by the lifting assembly, the ladder stand assembly is lifted, the top of the ladder stand assembly can be higher than the top plate, and a worker can climb onto the ladder stand assembly;

2. the arrangement of the limiting groove can limit the sliding of the ladder frame, the stability of the ladder frame is improved, when the lifting plate needs to be fixed, the lifting plate is adjusted to a corresponding height, the inserting strips are aligned with the fixing holes at the corresponding positions, the gear is rotated, the two groups of racks move in opposite directions, the two groups of racks are respectively and gradually close to the limiting grooves close to the two groups of racks, and the inserting strips are inserted into the fixing holes at the corresponding positions;

3. the arrangement of the stabilizing rods can improve the connection stability between the two groups of ladder stand components, and the arrangement of the pedals can further improve the connection stability between the two groups of ladder stand components and can also provide standing points for workers; the connection stability of the ladder stand component is improved by arranging the stabilizing mechanism.

Drawings

FIG. 1 is a schematic view of a construction scaffold;

FIG. 2 is a schematic view of another angle of a construction scaffold;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

FIG. 4 is a schematic view of a lifter plate and a stop block of a construction scaffold;

FIG. 5 is an enlarged partial schematic view of portion B of FIG. 2;

fig. 6 is a schematic view of a hollow bar and telescoping bar of a construction scaffold.

In the figure, 1, a column; 2. a top plate; 3. a lifting plate; 4. a lifting groove; 5. a motor; 6. a traction sheave; 7. a hoisting rope; 8. a guide wheel; 9. a winding groove; 10. a ladder frame; 11. step on the rod; 12. a limiting groove; 13. a limiting block; 14. installing a frame; 15. a mounting cavity; 16. a gear; 17. a rack; 18. inserting strips; 19. a rotating shaft; 20. a knob; 21. inserting holes; 22. connecting blocks; 23. a fixing hole; 24. a hollow shaft; 25. a telescopic rod; 26. a curved surface bump; 27. a butting block; 28. a butt joint groove; 29. a strip-shaped hole; 30. a threaded rod; 31. adjusting the nut; 32. a stabilizing rod; 33. a first screw; 34. a pedal; 35. a second screw; 36. a connecting strip; 37. a protection plate; 38. a circular hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the construction frame disclosed by the invention comprises four upright posts 1 and a top plate 2, wherein the four upright posts 1 are vertically arranged. 2 levels of roof are fixed in 1 tops of stand, and 2 bottoms of roof are provided with lifting unit, and 2 below levels of roof are provided with lifter plate 3, and lifting unit can adjust the height of lifter plate 3. The 3 top symmetries of lifter plate are provided with two sets of cat ladder subassemblies that are vertical setting, and two sets of lifting slots 4 have been seted up vertically to roof 2, and lifter plate 3 runs through the upper and lower both sides of roof 2, and the position of lifting slots 4 corresponds with the position of cat ladder subassembly, and cat ladder subassembly and 4 sliding connection in lifting slots.

Referring to fig. 2 and 3, the lifting assembly includes a motor 5, a traction sheave 6, two traction ropes 7 and two guide sheaves 8, the motor 5, the traction sheave 6, the traction ropes 7 and the guide sheaves 8 are all located between the lifting plate 3 and the top plate 2, the motor 5 is horizontally fixed at a middle position of the bottom surface of the top plate 2, and in this embodiment, the motor 5 is a servo motor. The traction sheave 6 is connected with the output end of the motor 5 in a key mode, the traction sheave 6 and the output end of the motor 5 rotate synchronously, two winding grooves 9 are formed in the peripheral surface of the traction sheave 6 in the circumferential direction, two traction ropes 7 are wound on the winding grooves 9 in corresponding positions in opposite directions respectively, one traction rope 7 extends out of the top of the traction sheave 6, and the other traction rope 7 extends out of the bottom of the traction sheave 6. Two leading sheaves 8 are fixed on the bottom surface of the top plate 2, the two leading sheaves 8 are respectively positioned on two symmetrical sides of the traction sheave 6, the axes of the two leading sheaves 8 are parallel to each other, the axis of the leading sheave 8 is parallel to the axis of the traction sheave 6, the two traction ropes 7 respectively pass through the leading sheaves 8 at corresponding positions, the traction ropes 7 are connected with the leading sheaves 8 in a sliding manner, one end of each traction rope 7, far away from the traction sheave 6, is fixedly connected with the top of the lifting plate 3, and the angles of the traction ropes 7 are changed after the leading sheaves 8, so that the traction ropes 7 between the leading sheaves 8 and the lifting plate 3 are vertically arranged. The motor 5 drives the traction sheave 6 to rotate so that the two traction ropes 7 are wound around the traction sheave 6 in opposite directions, so that the two traction ropes 7 can simultaneously lift the lifting plate 3, thereby adjusting the height of the lifting plate 3.

Referring to fig. 2 and 4, the cat ladder subassembly is located between two stands 1, the cat ladder subassembly includes two ladder frames 10 and a plurality of step rod 11, two ladder frames 10 all vertically are fixed in 3 top surfaces of lifter plate, two ladder frames 10 all with lift groove 4 sliding connection, ladder frame 10 is square strip object for the cross-section, the facies of two ladder frames 10 of same cat ladder subassembly are parallel to each other, step rod 11 level is fixed in between two ladder frames 10, step rod 11 both ends are fixed with the facies of two ladder frames 10 respectively, the distance between two adjacent step rods 11 is the same, step rod 11's size is less than the size of lift groove 4. In order to carry out spacingly to the cat ladder subassembly, spacing groove 12 has all been seted up to the side that stand 1 is close to ladder frame 10, and spacing groove 12 extends the setting along stand 1's length direction, and ladder frame 10 and spacing groove 12 sliding connection so set up, can play limiting displacement to the slip of ladder frame 10 to improve ladder frame 10's steadiness. In order to carry out spacingly to lifter plate 3, lifter plate 3 all is fixed with two sets of stoppers 13 near the terminal surface of stand 1, and stopper 13 sliding connection is in spacing groove 12, so sets up, can reduce the rocking that lifter plate 3 produced at the lift in-process to improve lifter plate 3's stability.

Referring to fig. 2 and 5, in order to fix the lifting plate 3, two sets of fixing components are arranged at the bottom of the lifting plate 3, the two sets of fixing components are respectively positioned below the two sets of ladder stand components, and the fixing components are positioned between the two sets of upright posts 1. The fixing component comprises a mounting frame 14, a mounting cavity 15, a gear 16, two groups of racks 17 and two groups of inserting strips 18, the mounting frame 14 is horizontally fixed on the bottom surface of the lifting plate 3, the length direction of the mounting frame 14 is parallel to that of the foot stick 11, and two ends of the mounting frame 14 are respectively in sliding connection with the limiting grooves 12 in corresponding positions. The installation cavity 15 is opened inside the installation frame 14, and the middle position level in the installation cavity 15 is provided with pivot 19, and pivot 19 rotates with the installation frame 14 to be connected, and 16 keys of gear are connected in the pivot 19 outside, and the installation frame 14 is stretched out to 19 one end of pivot to be fixed with the knob 20 of being convenient for rotate gear 16. Two sets of racks 17 all horizontally slide in installation cavity 15, and the length direction of two sets of racks 17 is parallel to each other, and is located the top and the below of gear 16 respectively, and the sliding direction of rack 17 is parallel with the length direction of installing frame 14, and two sets of racks 17 all mesh with gear 16. By rotating the gear 16, the gear 16 can drive the two sets of racks 17 to slide horizontally in opposite directions. Plug-in holes 21 are formed in the middle of the two end faces of the mounting frame 14 close to the stand column 1, the plug-in holes 21 are communicated with the mounting cavity 15, and the two plug-in holes 21 are identical in height. Connecting blocks 22 are vertically fixed at positions, far away from the other rack 17, of the end surfaces, close to each other, of the two groups of racks 17, the connecting blocks 22 of the racks 17 located above the gears 16 are vertically downward, and the connecting blocks 22 of the racks 17 located below the gears 16 are vertically upward. The inserting bar 18 is horizontally fixed at one end of the connecting block 22 far away from the rack 17, the inserting bar 18 is connected in the inserting hole 21 in a sliding mode, and the length of the inserting bar 18 is larger than that of the inserting hole 21. A plurality of fixed orificess 23 have been seted up to two sets of spacing grooves 12 groove face in opposite directions, and a plurality of fixed orificess 23 are arranged along the length direction linearity of spacing groove 12, and the distance between two fixed orificess 23 is the same, and the position one-to-one of fixed orificess 23 on two sets of spacing grooves 12, and highly the same, and grafting strip 18 and fixed orifices 23 cooperation of pegging graft.

After the lifting plate 3 is adjusted to the corresponding height, the inserting strips 18 are aligned to the fixing holes 23 of the corresponding height, the gear 16 is rotated, the two groups of racks 17 horizontally slide in opposite directions, the inserting strips 18 extend out of the inserting holes 21, and the inserting strips 18 are inserted into the fixing holes 23, so that the lifting plate 3 is fixed.

Referring to fig. 2 and 6, four sets of securing mechanisms are disposed on the top of the top plate 2, two sets of securing mechanisms support one set of ladder assembly, the other two sets of securing mechanisms support the other set of ladder assembly, and the positions of the securing mechanisms correspond to the positions of the ladder frame 10. The stabilizing mechanism comprises a hollow rod 24, a telescopic rod 25, a curved surface convex block 26, a butt joint block 27 and a fastening assembly, the hollow rod 24 and the telescopic rod 25 are long strip-shaped objects, one end of the hollow rod 24 is hinged to the top surface of the top plate 2, and the hollow rod 24 is located between two adjacent ladder frames 10 of different ladder stand assemblies. Hollow rod 24 is the cavity setting, and telescopic link 25 sliding connection is in hollow rod 24, and the length direction of telescopic link 25 and the length direction coincidence of hollow rod 24, hollow rod 24 is stretched out to the one end that hollow rod 24 was kept away from to telescopic link 25, and curved surface lug 26 is fixed in the one end that hollow rod 24 was kept away from to telescopic link 25. The butt joint groove 28 has all been seted up to the face in opposite directions of two adjacent ladder frames 10 of different cat ladder subassemblies, butt joint groove 28 extends the setting along the length direction of ladder frame 10, butt joint piece 27 sets up in butt joint groove 28, the fixed butt joint piece 27's of the opposite groove face in two sets of butt joint grooves 28 quantity is the same, butt joint piece 27 is linear arranging, two adjacent butt joint pieces 27's in the same butt joint inslot 28 distance between the same are the same, the high one-to-one of butt joint piece 27 in two sets of butt joint inslot 28.

Fastening assembly can be fixed between hollow rod 24 and the telescopic link 25, height as the regulation cat ladder subassembly that corresponds, and fix the back to lifter plate 3, according to the height of ladder frame 10, rotate hollow rod 24, and the length of hollow rod 24 is stretched out to the regulation telescopic link 25 that corresponds, make curved surface lug 26 can with the butt block 27 bottom surface butt that corresponds the height, then fix telescopic link 25 and hollow rod 24 through fastening assembly, thereby can support ladder frame 10, and then support the cat ladder subassembly, improve the stability of cat ladder subassembly.

Referring to fig. 6, fastening components includes bar hole 29, threaded rod 30 and adjusting nut 31, and bar hole 29 is seted up in hollow rod 24 one side, and bar hole 29 extends the setting along hollow rod 24's length direction, bar hole 29 and the inside intercommunication of hollow rod 24, and the distance between the relative both sides wall in bar hole 29 is less than the width of telescopic link 25. Threaded rod 30 is fixed in the position that is close to hollow rod 24 on one side of telescopic link 25, and the axis of threaded rod 30 is perpendicular with the length direction of telescopic link 25, and in the threaded rod 30 slided and wears to locate bar hole 29, the diameter of threaded rod 30 was less than the distance between the relative both sides wall in bar hole 29, and bar hole 29 is stretched out to the one end that the telescopic link 25 was kept away from to threaded rod 30, and adjusting nut 31 threaded connection is in the threaded rod 30 outside, and adjusting nut 31 is located the hollow rod 24 outside. When the telescopic rod 25 and the hollow rod 24 need to be fixed, the adjusting nut 31 is rotated to enable the adjusting nut 31 to be abutted against the outer side of the hollow rod 24, and therefore the telescopic rod 25 is fixed.

Referring to fig. 2, in order to improve the connection stability between two sets of ladder stand assemblies, two sets of ladder stand assembly levels are provided with two stabilizing rods 32, the two ends of each stabilizing rod 32 are respectively connected with two adjacent sets of ladder frames 10 of different ladder stand mechanisms, a first screw 33 is horizontally arranged at one end of each ladder frame 10 far away from the corresponding stabilizing rod 32, and the ladder frames 10 and the corresponding stabilizing rods 32 are fixed through the first screws 33.

In order to provide a foot drop point for workers, the same pedal 34 is horizontally arranged on the two stabilizing rods 32, the pedal 34 is overlapped on the two groups of stabilizing rods 32, four second screws 35 are arranged at the top of the pedal 34 in a penetrating manner, two second screws 35 are fixed with one stabilizing rod 32, and the other two second screws 35 are fixed with the other stabilizing rod 32.

In order to protect the motor 5, the traction sheave 6 and the guide wheel 8, the bottom surface of the top plate 2 is vertically fixed with connecting strips 36 at positions close to the corners around, the bottom of each of the four connecting strips 36 is horizontally fixed with a same protecting plate 37, the motor 5, the traction sheave 6 and the guide wheel 8 are both positioned between the protecting plate 37 and the top plate 2, two round holes 38 are vertically formed in the positions, corresponding to the traction ropes 7, of the protecting plates 37, the round holes 38 are positioned below the guide wheels 8 at the corresponding positions, the traction ropes 7 vertically penetrate through the round holes 38, and the diameters of the round holes 38 are larger than those of the traction ropes 7.

The implementation principle of the embodiment is as follows: when buildings with different heights need to be constructed, the motor 5 drives the traction sheave 6 to rotate, so that the traction ropes 7 are wound on the traction sheave 6 in opposite directions, the two traction ropes 7 can simultaneously lift the lifting plate 3, and the height of the lifting plate 3 can be correspondingly adjusted; when the height of the lifting plate 3 is adjusted, the plug hole 21 is aligned with the fixing hole 23, then the gear 16 is rotated, so that the two groups of racks 17 horizontally slide in opposite directions, the plug strip 18 extends out of the plug hole 21 and is inserted into the fixing hole 23, and the lifting plate 3 is fixed; accomplish the fixed back of lifter plate 3, rotate hollow rod 24 to adjust the length that telescopic link 25 stretched out hollow rod 24, make curved surface lug 26 can with the butt block 27 bottom surface butt of corresponding height, then rotate adjusting nut 31, make adjusting nut 31 and the 24 outside butts of hollow rod, thereby fix telescopic link 25, the staff can stand on footboard 34, be under construction to the building of co-altitude not.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.