CN116537509B

CN116537509B - Attached lifting scaffold

Info

Publication number: CN116537509B
Application number: CN202310823623.8A
Authority: CN
Inventors: 罗申; 王秋林; 李荣华; 袁晓晨; 孔祥华
Original assignee: Jiangsu Chisheng Construction Engineering Equipment Co ltd
Current assignee: Jiangsu Chisheng Construction Engineering Equipment Co ltd
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2023-09-29
Anticipated expiration: 2043-07-06
Also published as: CN116537509A

Abstract

The utility model relates to the technical field of building machinery, in particular to an attached lifting scaffold which comprises a cross beam, a longitudinal beam, a lateral beam, a triangular diagonal brace, a protective net rack, a scaffold board and a crawling ladder, wherein the crawling ladder is fixedly arranged on the inner side of the scaffold through a connecting piece, the connecting piece comprises a crawling rail and a mounting frame, a plurality of positioning columns are arranged on the inner wall of the crawling rail in a protruding mode, one side of the mounting frame is fixedly connected with the crawling ladder, the other side of the mounting frame is sleeved on the crawling rail in a sliding mode, a butt joint strip is arranged on the inner wall of the mounting frame, a limiting assembly is further arranged on the butt joint strip, the limiting assembly comprises a right inserting strip and a left inserting strip, and the right inserting strip and the left inserting strip are driven by a pushing assembly and move in a straight line opposite direction on the butt joint strip. According to the utility model, the original stacking modularized crawling ladder is replaced by a group of freely-adjustable crawling ladder, so that the load on the scaffold is reduced, the operation procedure is greatly simplified, and the assembly efficiency is improved.

Description

Attached lifting scaffold

Technical Field

The utility model relates to the technical field of building machinery, in particular to an attached lifting scaffold.

Background

Scaffolding refers to various supports erected at construction sites for workers to operate and to address vertical and horizontal transport. The general term of the building world refers to places on the building site where external walls, interior decorations or high floors cannot be directly constructed.

The utility model patent with the application number of CN202120964122.8 discloses an attached lifting scaffold standard assembly unit, which comprises: the scaffold comprises a scaffold plate, an outer protection device, an inner supporting device and an inner and outer connecting diagonal bracing. The scaffold plate is formed by welding profile steel and a patterned steel plate; the outer protection device comprises a vertical rod and an outer protection net, and consists of section steel and a steel net; the inner supporting device consists of an inner vertical rod and a truss; the inner and outer connecting diagonal braces are made of rectangular pipes; the attached lifting scaffold is assembled and spliced according to construction drawings through the assembling units with different specifications so as to meet the use requirements.

In the in-service use, still need install the cat ladder additional when applying above-mentioned inserted lift scaffold to this realization staff's climbing demand, and among the prior art, the cat ladder all is a section unit subassembly and stacks mutually to regard as the connecting piece direct assembly on the scaffold through screw or buckle, this kind of connecting piece, simple structure, assembly work is loaded down with trivial details and fixed effect is poor, and the multisection cat ladder stacks mutually the amalgamation, and stability is poor and can increase the overall weight of scaffold, further aggravates the load of scaffold, and then influences actual operating efficiency.

Disclosure of Invention

The utility model aims to provide an attached lifting scaffold which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an attached lift scaffold, includes crossbeam, longeron, side's roof beam, triangle bracing, protection rack, scaffold board and cat ladder, crossbeam, longeron and side's roof beam are the column, crossbeam and side's roof beam dock perpendicularly and all with ground parallel arrangement, the longeron sets up perpendicularly with ground, the outside at the scaffold is fixed to protection rack detachable, the cat ladder passes through the connecting piece to be fixed to be set up in the inboard of scaffold, the scaffold board passes through the screw level and transversely puts in the inboard of two sets of crossbeams, and the lower extreme of every group scaffold board all is provided with triangle bracing, triangle bracing is provided with two sets of outer edges through the screw fixation on the roof beam, and outer edge is kept away from along the outer reference column that is linear distribution of one side inner wall protrusion of longeron, the opposite side sliding sleeve joint is on the mounting bracket, and is close to the protruding butt joint of one side inner wall of crawling rail and be provided with the butt joint, the left side and right side has set up the stop subassembly and has set up in the butt joint groove and has the butt joint groove to stop slot and has set up the stop joint position to the side stop assembly, the stop joint position is held to the left side stop assembly.

Preferably, serial grooves communicated with the clamping holes are formed in the butt joint strips, the right cutting and the left cutting are symmetrically arranged in the serial grooves, one ends, away from each other, of the right cutting and the left cutting are fixedly connected with a plurality of side springs which are in linear distribution, and one sides, close to each other, of the right cutting and the left cutting are arranged in an arc shape and are inserted in the biting grooves.

Preferably, the side wall of the left cutting is further provided with a plurality of wedge-shaped cavities which are linearly distributed, a group of inserting sheets are inserted into each wedge-shaped cavity, one end of each inserting sheet, far away from the left cutting, extends into the mounting frame and is fixedly connected with the connecting strip, the connecting strip is arranged in the mounting frame in a limiting sliding mode and is connected with the pushing assembly, and one side, close to the right cutting, of each connecting strip is fixedly connected with the reset spring.

Preferably, the pushing assembly comprises a main pushing plate and a poking plate, the main pushing plate is arranged in the mounting frame in a limiting sliding mode, rectangular grooves for containing the poking plate are formed in the side wall of the mounting frame, a set of vertical blocks are arranged on the upper side and the lower side of each rectangular groove, and the vertical blocks are fixedly arranged on the side wall of the mounting frame.

Preferably, one end of the poking plate is fixedly connected with the main push plate, the other end of the poking plate extends out of the rectangular slot and is quickly fixed on the vertical block through the positioning component, a round hole is concavely formed in the vertical block, the positioning component comprises two groups of limit inserted rods which are in mirror symmetry, one end of each limit inserted rod is fixedly connected with the inner push rod, and the other end of each limit inserted rod penetrates through the poking plate and is inserted in the round hole.

Preferably, the stirring plate is provided with a matching groove for accommodating the inner push rod, and one end of the inner push rod, which is far away from the limiting inserted rod, is fixedly connected with a vertical spring.

Preferably, rectangular sliding grooves are formed in two horizontal sides of the crawling rail, and limiting strips inserted in the rectangular sliding grooves are fixedly arranged on the inner side walls of the mounting frame.

Preferably, the limiting assembly further comprises a first toothed plate, a second toothed plate and a spur gear, the first toothed plate is fixedly connected with the right cutting, the second toothed plate is fixedly connected with the left cutting, and the spur gear is installed in the butt joint strip in a limiting rotating mode through the central shaft.

Preferably, the first toothed plate and the second toothed plate are arranged up and down relative to the spur gear, and the first toothed plate and the second toothed plate are both provided with at least one group and are all in linear distribution.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the crawling rail is additionally arranged on the longitudinal beam and used for guiding and supporting the crawling ladder, and the novel connecting piece is formed by the mounting frame, the positioning columns, the biting groove and the butt joint strip, so that the crawling ladder can be ensured to freely slide on the crawling rail, can be adjusted up and down according to the requirements of operators, and can be rapidly fixed and limited at the moved position, the limiting support of the positioning columns effectively enhances the stability of the crawling ladder, ensures the crawling safety of operators, and a group of freely-adjustable crawling ladders replace the original stacking modularized crawling ladder, so that the load on the scaffold is reduced, the operation procedure is greatly simplified, and the assembly efficiency is further improved.

2. According to the utility model, a novel unlocking component is formed by the wedge-shaped cavity, the inserting piece, the connecting strip, the main pushing plate and the poking plate, the fixing effect of the limiting component in the butt joint strip can be relieved through external force application, when a crawling ladder needs to be moved, an operator can realize the synchronous pulling effect of the right inserting strip and the left inserting strip by pushing the main pushing plate inwards, the right inserting strip and the left inserting strip can be rapidly pulled out of the biting groove, and therefore limiting fixation of the mounting frame is relieved, and the crawling ladder can be rapidly exchanged in two states of positioning and sliding.

3. The utility model has smart structure, and through the cooperation of the first toothed plate, the second toothed plate and the spur gear, the linear pushing force of the left cutting can be converted into the reverse pushing force of the right cutting, so that the right cutting and the left cutting synchronously extend or retract, and the mechanical linkage is strong.

4. Through setting up interior push rod, vertical spring and spacing inserted bar cooperation and use, constitute the horizontal spacing subassembly to stirring the board for stir the board and stir down not receiving the external force, remain throughout in the home position, just so avoided touching the board because of the operation personnel's hand and foot mistake, cause the situation emergence of the spacing subassembly of unblock, further improve the stability performance of cat ladder.

Drawings

Fig. 1 is a schematic perspective view of the structure of the present utility model.

Fig. 2 is a schematic view of another view of the structure of the present utility model.

Fig. 3 is a schematic diagram of the connection of the scaffold and the ladder of the present utility model.

FIG. 4 is a schematic illustration of the connection of a stringer to a creeper rail in accordance with the present utility model.

Fig. 5 is a schematic diagram of connection between a crawling ladder and a crawling rail according to the present utility model.

Fig. 6 is a schematic diagram of connection between a ladder stand and a mounting frame in the present utility model.

Fig. 7 is a schematic view of the mounting frame of the present utility model.

Fig. 8 is an enlarged schematic view of the area a in fig. 7.

Fig. 9 is a schematic perspective view of a spacing assembly of the present utility model.

Fig. 10 is a partial schematic view of a spacing assembly according to the present utility model.

FIG. 11 is a schematic illustration of the connection of the neutral mass to the main thrust plate in accordance with the present utility model.

In the figure: the novel vertical sliding rail comprises a cross beam 1, a longitudinal beam 2, a lateral beam 3, a triangular diagonal brace 4, a protective net rack 5, a scaffold board 6, a crawling rail 7, a rectangular sliding groove 701, a crawling ladder 8, a mounting rack 9, a limiting strip 901, a vertical block 902, a positioning column 10, a biting groove 11, a butt joint strip 12, a clamping hole 13, a right cutting 14, a lateral spring 15, a left cutting 16, a wedge-shaped cavity 17, an inserting sheet 18, a connecting strip 19, a main pushing plate 20, a poking plate 21, an inner pushing rod 22, a vertical spring 23, a limiting inserting rod 24, a first toothed plate 25, a second toothed plate 26 and a straight gear 27.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 11, the present utility model provides the following technical solutions: the utility model provides an attached lift scaffold, including crossbeam 1, longeron 2, side direction roof beam 3, triangle bracing 4, protection rack 5, scaffold board 6 and cat ladder 8, crossbeam 1, longeron 2 and side direction roof beam 3 are the column, crossbeam 1 and side direction roof beam 3 dock perpendicularly and all with ground parallel arrangement, longeron 2 sets up perpendicularly with ground, protection rack 5 is detachable to be fixed in the outside of scaffold, cat ladder 8 passes through the fixed inboard that sets up at the scaffold of connecting piece, scaffold board 6 passes through the screw level and transversely sets up in the inboard of two sets of crossbeams 1, the lower extreme of every scaffold board 6 all is provided with triangle bracing 4, triangle bracing 4 passes through the screw fixation on side direction roof beam 3, further, the connection between two sets of adjacent longerons 2 is strengthened through setting up triangle bracing 4, thereby strengthen the holding power of scaffold side, and through setting up protection rack 5, increase the positive holding power of chamber scaffold on the one side, on the other hand, be convenient for install protection net, shelter ash to scaffold on the side.

The connecting piece is including crawling rail 7 and mounting bracket 9, the one side symmetry that the rail 7 is close to longeron 2 is provided with two sets of outer edges, outer edge passes through the fix with screw on longeron 2, the one side inner wall protrusion that the rail 7 is kept away from outer edge is provided with a plurality of reference columns 10 that are linear distribution, mounting bracket 9 one side fixed connection cat ladder 8, the 9 opposite side of mounting bracket is slided and is cup jointed on the rail 7 of crawling, and the mounting bracket 9 is close to the one side inner wall protrusion of crawling rail 7 and is provided with butt joint strip 12, butt joint strip 12 stretches into in the inside groove of crawling rail 7, the card hole 13 that holds reference column 10 has been seted up on the butt joint strip 12, still be provided with spacing subassembly on the butt joint strip 12 for with the spacing position of fixing after removing of mounting bracket 9, spacing subassembly includes right cutting 14 and left cutting 16, right cutting 14 and left cutting 16 are driven by pushing the subassembly and carry out sharp opposite movement on butt joint strip 12, the last cutting groove 11 that holds right cutting 14 and left cutting 16 of reference column 10.

Furthermore, the crawling rail 7 is additionally arranged on the longitudinal beam 2 and used for guiding and supporting the crawling ladder 8, and a novel connecting piece is formed by the mounting frame 9, the positioning columns 10, the biting groove 11 and the butt joint strip 12, so that the crawling ladder 8 can be guaranteed to freely slide on the crawling rail 7, can be adjusted up and down according to the demands of operators, the crawling ladder 8 can be rapidly fixed and limited at the moved position, the positioning columns 10 are limited and supported, the crawling safety of the crawling ladder 8 is effectively enhanced, the crawling safety of the operators is guaranteed, the load on the scaffold is reduced, the operation procedure is greatly simplified, and the assembly efficiency is further improved.

The butt joint strip 12 is provided with a serial groove communicated with the clamping hole 13, the right cutting strip 14 and the left cutting strip 16 are symmetrically arranged in the serial groove, one ends, deviating from each other, of the right cutting strip 14 and the left cutting strip 16 are fixedly connected with a plurality of side springs 15 which are in linear distribution, and one sides, close to each other, of the right cutting strip 14 and the left cutting strip 16 are arranged in an arc shape and are inserted in the biting groove 11.

Further, through setting up right cutting 14, left cutting 16 and lateral spring 15 cooperation and using, can carry out the joint to a plurality of reference columns 10 simultaneously spacing for butt joint strip 12 can stably cup joint on reference column 10, with this spacing fixed of realization to mounting bracket 9, thereby fix cat ladder 8 in the position after removing.

The side wall of the left cutting 16 is also provided with a plurality of wedge-shaped cavities 17 which are in linear distribution, a group of inserting sheets 18 are inserted into each wedge-shaped cavity 17, one end of each inserting sheet 18, which is far away from the left cutting 16, stretches into the mounting frame 9 and is fixedly connected with a connecting strip 19, the connecting strip 19 is arranged in the mounting frame 9 in a limiting sliding manner and is connected with a pushing assembly, and one side, which is close to the right cutting 14, of the connecting strip 19 is also fixedly connected with a reset spring.

The pushing assembly comprises a main pushing plate 20 and a poking plate 21, the main pushing plate 20 is arranged in the mounting frame 9 in a limiting sliding mode, rectangular grooves for accommodating the poking plate 21 are formed in the side wall of the mounting frame 9, a set of vertical blocks 902 are arranged on the upper side and the lower side of each rectangular groove, and the vertical blocks 902 are fixedly arranged on the side wall of the mounting frame 9.

Further, a novel unlocking component is formed by the wedge-shaped cavity 17, the inserting sheet 18, the connecting strip 19, the main pushing plate 20 and the poking plate 21, the fixing effect of the limiting component in the butt joint strip 12 can be relieved through external force application, when the crawling ladder 8 needs to be moved, an operator only needs to push the main pushing plate 20 inwards, the synchronous pulling effect of the right inserting strip 14 and the left inserting strip 16 can be achieved, the right inserting strip 14 and the left inserting strip 16 can be pulled out of the biting groove 11 quickly, and therefore limiting fixation of the mounting frame 9 is relieved, and the crawling ladder 8 can be quickly exchanged in two states of positioning and sliding.

Specifically, by pushing the main push plate 20 inward, the tie bar 19 and the insert 18 on the main push plate 20 are also moved together toward the positioning column 10, and the insert 18 acts on the wedge-shaped cavity 17, so that the left insert 16 is forced to press the lateral spring 15 and be pulled out of the biting groove 11; at the same time, the second toothed plate 26 on the left cutting 16 acts on the spur gear 27, and the spur gear 27 in turn acts on the first toothed plate 25, so that the right cutting 14 is forced against the lateral spring 15 and is pulled out of the biting groove 11 quickly.

The limiting assembly further comprises a first toothed plate 25, a second toothed plate 26 and a spur gear 27, wherein the first toothed plate 25 is fixedly connected with the right cutting 14, the second toothed plate 26 is fixedly connected with the left cutting 16, and the spur gear 27 is installed in the butt joint strip 12 in a limiting rotation mode through a central shaft. The first toothed plate 25 and the second toothed plate 26 are arranged vertically opposite to each other with respect to the spur gear 27, and the first toothed plate 25 and the second toothed plate 26 are each provided with not less than 8 groups and are each linearly distributed.

Further, through setting up first pinion rack 25, second pinion rack 26 and spur gear 27 cooperation and using, can be with the straight line thrust of left cutting 16 conversion to the reverse thrust of right cutting 14 for right cutting 14 and left cutting 16 carry out the action of stretching into or retracting in step, and mechanical linkage is strong.

One end of the poking plate 21 is fixedly connected with the main push plate 20, the other end of the poking plate 21 extends out of the rectangular slot and is quickly fixed on the vertical block 902 through a positioning component, a round hole is concavely formed in the vertical block 902, the positioning component comprises two groups of limit inserted rods 24 in mirror symmetry, one end of each limit inserted rod 24 is fixedly connected with the inner push rod 22, and the other end of each limit inserted rod 24 penetrates through the poking plate 21 and is inserted into the round hole. The toggle plate 21 is provided with a matching groove for accommodating the inner push rod 22, and one end of the inner push rod 22, which is far away from the limiting inserted rod 24, is fixedly connected with a vertical spring 23.

Further, through setting up interior push rod 22, vertical spring 23 and spacing inserted bar 24 cooperation and using, constitute the horizontal spacing subassembly to stirring board 21 for stir board 21 and stir down not receiving the external force, remain in the home position all the time, just so avoided touching stirring board 21 because of the operation personnel's hand and foot mistake, cause the situation emergence of unblock spacing subassembly, further improve the stability performance of cat ladder 8.

Rectangular sliding grooves 701 are formed in two horizontal sides of the crawling rail 7, and limiting strips 901 inserted into the rectangular sliding grooves 701 are fixedly arranged on the inner side walls of the mounting frames 9.

Further, through setting up spacing 901 and the cooperation of rectangle spout 701 and using, play horizontal spacing effect to mounting bracket 9, avoid it to break away from out the rail 7 of crawling.

In actual assembly, the utility model holds the ladder 8 and sleeves the mounting frame 9 on the back of the ladder on the crawling rail 7, then the whole is buckled inwards, and the positioning column 10 on the crawling rail 7 is clamped in the clamping hole 13 on the butt joint strip 12, so that the mounting frame 9 is limited up and down; at this time, the right cutting 14 and the left cutting 16 are arranged in arc shapes at the end parts, so that the right cutting 14 and the left cutting 16 can normally move to the biting groove 11, and can be synchronously clamped in the biting groove 11 under the elastic action of the lateral spring 15, the frame ladder 8 is quickly fixed and limited at the moved position, the limiting supports of the positioning columns 10 effectively strengthen the stability of the ladder 8, the crawling safety of operators is ensured, and the group of freely-adjustable ladder 8 replaces the original stacking modularized ladder, so that the load on the scaffold is reduced, the operation procedure is greatly simplified, and the assembly efficiency is further improved.

When the main push plate 20 moves inwards, the connecting strip 19 and the inserting piece 18 on the main push plate 20 move towards the positioning column 10, and the inserting piece 18 acts on the wedge-shaped cavity 17, so that the left inserting piece 16 is forced to squeeze the lateral spring 15 and is pulled out of the biting groove 11; at the same time, the second toothed plate 26 on the left cutting 16 acts on the spur gear 27, and the spur gear 27 acts on the first toothed plate 25, so that the right cutting 14 is forced to press the lateral spring 15 and is pulled out of the biting groove 11 quickly; thereby releasing the limit fixation of the mounting frame 9, so that the ladder stand 8 can be quickly exchanged in two states of positioning and sliding.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an inserted lift scaffold, includes crossbeam (1), longeron (2), side direction roof beam (3), triangle bracing (4), protection rack (5), scaffold board (6) and cat ladder (8), its characterized in that: the utility model discloses a crawler frame, including girder (2), girder (3), girder (1), girder (2), girder (3), girder (1) and girder (3) are the column, girder (2) and girder (3) are perpendicular butt joint and all with ground parallel arrangement, girder (2) set up with ground is perpendicular, protection rack (5) are detachable to be fixed in the outside of scaffold, cat ladder (8) are fixed the inboard that sets up at the scaffold through the connecting piece, scaffold board (6) are horizontal through the screw be put in the inboard of two sets of girders (1), and the lower extreme of every scaffold board (6) all is provided with triangle bracing (4), triangle bracing (4) are fixed on girder (3) through the screw on the girder (3) of side, the connecting piece is including crawling rail (7) and mounting bracket (9), one side symmetry that crawling rail (7) are close to girder (2) is provided with two sets of outer edges, and the outer edge is fixed on girder (2) through the screw, and crawling rail (7) is kept away from the one side inner wall protrusion of outer edge and is provided with a plurality of locating columns (10) that are linear distribution, one side fixed connection rail (9) one side (8) are fixed on one side and one side of crawling rail (7) is close to the inner wall (12) and stretches into in the projecting butt joint rail (12), the butt joint strip (12) is provided with a clamping hole (13) for accommodating the positioning column (10), the butt joint strip (12) is also provided with a limiting component for limiting and fixing the mounting frame (9) at a position after movement, the limiting component comprises a right cutting strip (14) and a left cutting strip (16), the right cutting strip (14) and the left cutting strip (16) are driven by a pushing component and move in a straight line opposite direction on the butt joint strip (12), the positioning column (10) is provided with a biting groove (11) for accommodating the right cutting strip (14) and the left cutting strip (16), the butt joint strip (12) is provided with a serial groove communicated with the clamping hole (13), the right cutting strip (14) and the left cutting strip (16) are symmetrically arranged in the serial groove, one ends of the right cutting strip (14) and the left cutting strip (16) which are mutually deviated from each other are fixedly connected with a plurality of side springs (15) which are in linear distribution, one sides of the right cutting strip (14) and the left cutting strip (16) which are mutually close to each other are respectively arranged into a shape and are inserted into the biting groove (11), one end of the right cutting strip (16) which is connected with the left cutting strip (16) in a wedge-shaped groove (17) in a serial groove, one end of the butt joint strip (16) which is connected with the wedge-shaped groove (17) in a wedge-shaped groove (17), the connecting strip (19) is arranged in the mounting frame (9) in a limiting sliding manner and is connected with the pushing assembly, and a reset spring is fixedly connected to one side, close to the right cutting (14), of the connecting strip (19).

2. An attached lift scaffold as in claim 1, wherein: the pushing assembly comprises a main pushing plate (20) and a stirring plate (21), the main pushing plate (20) is arranged in the mounting frame (9) in a limiting sliding mode, rectangular grooves for containing the stirring plate (21) are formed in the side wall of the mounting frame (9), a set of vertical blocks (902) are arranged on the upper side and the lower side of each rectangular groove, and the vertical blocks (902) are fixedly arranged on the side wall of the mounting frame (9).

3. An attached lift scaffold as in claim 2, wherein: the utility model discloses a toggle plate, including toggle plate (21), main push pedal (20) are connected to toggle plate (21) one end fixed connection, and the rectangle fluting is stretched out to toggle plate (21) other end and is fixed in on standing piece (902) through locating component is quick, and standing piece (902) indent is equipped with the round hole, and locating component includes two sets of mirror symmetry's spacing inserted bar (24), push rod (22) in spacing inserted bar (24) one end fixed connection, and toggle plate (21) and insert in the round hole are run through to spacing inserted bar (24) other end.

4. An attached lift scaffold as in claim 3 wherein: the stirring plate (21) is provided with a matching groove for accommodating the inner push rod (22), and one end, far away from the limiting inserted rod (24), of the inner push rod (22) is fixedly connected with a vertical spring (23).

5. An attached lift scaffold as in claim 1, wherein: rectangular sliding grooves (701) are formed in the two horizontal sides of the crawling rail (7), and limiting strips (901) inserted into the rectangular sliding grooves (701) are fixedly arranged on the inner side walls of the mounting frames (9).

6. An attached lift scaffold as in claim 1, wherein: the limiting assembly further comprises a first toothed plate (25), a second toothed plate (26) and a spur gear (27), the first toothed plate (25) is fixedly connected with the right cutting (14), the second toothed plate (26) is fixedly connected with the left cutting (16), and the spur gear (27) is installed in the butt joint strip (12) through limiting rotation of the central shaft.

7. An attached lift scaffold as in claim 6 wherein: the first toothed plate (25) and the second toothed plate (26) are arranged vertically opposite to each other with respect to the spur gear (27), and the first toothed plate (25) and the second toothed plate (26) are provided with at least 8 groups and are linearly distributed.