A modular product of a high-rise building scissor ladder and a manufacturing method thereof

Abstract

The present invention provides a modular product of a high-rise building scissor ladder and a manufacturing method thereof, comprising a prefabricated scissor ladder, which is placed in a reserved stairwell for installation and fixation; multiple resting platforms are arranged on the inner walls of both sides of the reserved stairwell, and multiple resting platforms are sequentially connected on both sides of the prefabricated scissor ladder from top to bottom; and prestressed steel bars are arranged in each step of the prefabricated scissor ladder. The application of this technical solution can realize the convenience of installation of the scissor ladder.

Description

Technical Field

[0001] The invention relates to the field of stair construction, and in particular to a modular product of a high-rise building scissor ladder and a manufacturing method thereof. Background Art

[0002] In high-rise buildings, although elevators are used for travel, stairs are also indispensable for fire safety, and two independent stairs are required. In the prior art, the installation of scissor-type stairs is usually assembled on site and then installed in the stairwell. This installation method is costly and the yield rate needs to be improved. Summary of the invention

[0003] The object of the present invention is to provide a modular product of a high-rise building scissor ladder and a manufacturing method thereof, so as to realize the convenient installation of the scissor ladder.

[0004] In order to solve the above technical problems, the present invention provides a modular product of a high-rise building scissors ladder, including a prefabricated scissors ladder, which is placed in a reserved stairwell and installed and fixed; multiple rest platforms are arranged on the inner walls on both sides of the reserved stairwell, and multiple rest platforms are connected in sequence on both sides of the prefabricated scissors ladder from top to bottom; prestressed steel bars are arranged in each step of the prefabricated scissors ladder.

[0005] In a preferred embodiment, the prefabricated scissors ladder includes a scissors ladder assembly; the scissors ladder assembly includes a firewall and a first staircase and a second staircase respectively arranged on both sides of the firewall; the projections of the first staircase and the second staircase on the firewall are arranged to intersect with each other along a direction perpendicular to the plane where the firewall is located; the rest platform is specifically a high-end platform and a low-end platform respectively arranged at the upper and lower ends of both sides of the firewall; the first high end of the first staircase and the second high end of the second staircase are respectively connected to the high-end platform, and the first low end of the first staircase and the second low end of the second staircase are respectively connected to the low-end platform; the scissors ladder assemblies are assembled in pairs from top to bottom; the high-end platform of the upper group of scissors ladder assemblies is the low-end platform of the lower group of scissors ladder assemblies.

[0006] In a preferred embodiment, the high-end platform is divided into a first side high-end platform and a second side high-end platform by the firewall; the first side high-end platform is connected to the first high end of the first staircase of the next group of scissor ladder components, and the second side high-end platform is connected to the second low end of the second staircase of the previous group of scissor ladder components; the low-end platform is divided into a first side low-end platform and a second side low-end platform by the firewall; the first side low-end platform is connected to the first low end of the first staircase of the previous group of scissor ladder components, and the second side low-end platform is connected to the second high end of the second staircase of the next group of scissor ladder components;

[0007] The first low end and the second low end are respectively placed on the second side high end platform and the first side low end platform, so that the second side high end platform and the first side low end platform directly become the next step of the end step of the first staircase or the second staircase.

[0008] In a preferred embodiment, the first side high-end platform and the second side low-end platform are both provided with a lap groove, which are respectively used to overlap the first high end of the first staircase and the second high end of the second staircase; the depth of the lap groove is twice the thickness of one of the steps of the first staircase or the second staircase; so that when the first staircase or the second staircase is overlapped on the lap groove, a step is automatically formed at the upper end of the lap groove; the first high end and the second high end are both provided with connecting holes, and the lap groove is provided with connecting matching holes, and the first high end and the second high end are fixedly connected to the lap groove by inserting the first connecting member into the connecting hole and the connecting matching hole; the first staircase and the second staircase are respectively provided with lifting holes at both ends.

[0009] In a preferred embodiment, both side edges of the first staircase and the second staircase extend upward for a distance in the vertical direction to form flanges.

[0010] In a preferred embodiment, each step of the first staircase and the second staircase is provided with a hollow groove; the length direction of the hollow groove is the width direction of the step.

[0011] In a preferred embodiment, the upper and lower fire walls are connected by a wall connector; the wall connector includes a first connector and a second connector which are arranged in parallel with each other, and also includes a third connector; two ends of the third connector connect the first connector and the second connector; the length direction of the third connector is consistent with the thickness direction of the fire wall; the first connector, the second connector and the third connector are all located on the same plane; after the first connector passes through the gap between the fire walls, the third connector reaches the gap between the fire walls, and the third connector is rotated so that the first connector and the second connector are rotated and fit tightly with the two side surfaces of the wall respectively; bolt holes are provided on both sides of the fire wall, which are respectively used to be fixedly connected with the side portions of the first high end and the second high end.

[0012] In a preferred embodiment, a first limit piece is provided at the end of the first connection part, a second limit piece is provided at the end of the second connection part, a limit hole is provided on the wall surface of the fire wall, and the first limit piece and the second limit piece cooperate with the limit hole to limit with the rotation of the first connection part and the second rotating part respectively; the ends of the first connection part and the second connection part respectively extend a distance in the direction of the limit angle spaced apart from the length direction of the first connection part and the second connection part to form the first limit piece and the second limit piece.

[0013] In a preferred embodiment, the first staircase and the second staircase are equally divided into a first side staircase and a second side staircase along their length direction; the first side staircase and the second side staircase are connected and fixed by an adhesive.

[0014] The present invention also provides a method for manufacturing a high-rise building scissors ladder modular product, which adopts the high-rise building scissors ladder modular product; and places a reserved scissors ladder in a reserved stairwell.

[0015] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0016] The present invention provides a modular product of a scissor ladder for a high-rise building and a manufacturing method thereof. A stairwell is reserved like an elevator shaft, and the scissor ladder assembly is pre-productized and manufactured in a factory and then installed in the stairwell. Prestressed steel bars are used to make the prefabricated scissor ladder to improve the rigidity of the prefabricated scissor ladder. Such an installation method can effectively improve the consistency of the scissor ladder assembly, improve the yield rate of the product, reduce the workload of on-site installation, reduce the overall cost, and improve the quality of the building. By directly overlapping the first staircase and the second staircase on the high-end platform and the low-end platform so that the high-end platform and the low-end platform directly become the next step at the end of the first staircase and the second staircase, such a design can effectively save the connection materials between the first staircase and the second staircase and the rest platform, which is conducive to reducing the manufacturing cost. A high-end platform is the high-end connection of a staircase and the bottom connection of the next staircase, and is separated by a firewall so that the first staircase on one side of the firewall is connected to the second staircase on the other side of the firewall, and then connected to the next first staircase on one side of the firewall, thereby forming two independent stairs. The first staircase and the second staircase are divided into two to reduce the weight of the prefabricated scissor ladder and facilitate installation.

[0017] By setting flanges on both sides of the first staircase and the second staircase, the fire walls on the sides of the stairs can be effectively protected during the subsequent daily maintenance of the stairs, and sewage when cleaning the stairs can be prevented from scouring the fire walls. The fire walls can also be prevented from being hit during daily use of the stairs.

[0018] By providing hollow grooves on the first staircase and the second staircase, the weight of the first staircase and the second staircase can be effectively reduced. Also, in order to facilitate transportation and reduce the weight of the first staircase and the second staircase, when making the prefabricated scissor ladder, the first staircase and the second staircase are evenly divided into a first side staircase and a second side staircase, which can effectively reduce the weight and facilitate transportation during transportation, and the first side staircase and the second side staircase are connected and fixed by an adhesive.

[0019] The wall connector includes a first connector, a second connector and a third connector; the first connector and the second connector are used to fix with the firewall, and the third connector connects the first connector and the second connector; since the first connector, the second connector and the third connector are at the same level, the first connector can be passed through the gap between the firewalls so that the first connector and the second connector are on both sides of the firewall, and then the third connector located in the gap between the firewalls is rotated so that the first connector and the second connector, which are originally located on the same horizontal plane as the gap, are rotated to an angle that abuts against the walls on both sides of the firewall. And since the first connector and the second connector are parallel to each other, the two firewalls can be accurately connected to avoid tilting and misalignment between the walls. The two walls can be accurately connected by the action of "one plug and one turn", and the structure is simple and easy to operate. The wall connector and the upper and lower firewalls are fixed by setting the limit hole and the first limit member and the second limit member, so as to realize the connection between the upper and lower firewalls and enhance the firmness. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the prefabricated scissors ladder in the preferred embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of the prefabricated scissors ladder in the preferred embodiment 1 of the present invention;

[0022] Figure 3 It is a schematic top view of the overall structure of the prefabricated scissors ladder in the preferred embodiment 1 of the present invention;

[0023] Figure 4 It is a side view schematic diagram of the first staircase of the prefabricated scissors ladder in the preferred embodiment 1 of the present invention;

[0024] Figure 5 It is a partially enlarged schematic side view of the first staircase of the prefabricated scissors ladder in the preferred embodiment 1 of the present invention;

[0025] Figure 6 It is a front view schematic diagram of the first staircase of the prefabricated scissors ladder in the preferred embodiment 1 of the present invention;

[0026] Figure 7 Schematic diagram of the connection relationship between a wall connector and a fire wall in a preferred embodiment of the present invention (I);

[0027] Figure 8 It is a partial enlarged schematic diagram of the connection relationship between a wall connector and a fire wall in a preferred embodiment of the present invention (I);

[0028] Fig. 9 This is a schematic diagram of the connection relationship between the wall connector and the fire wall in the preferred embodiment 1 of the present invention;

[0029] Fig.10 It is a partially enlarged schematic diagram of the connection relationship between the wall connector and the fire wall in the preferred embodiment 1 of the present invention;

[0030] Fig.11 This is a schematic diagram of the positional relationship of the connection states of a group of wall connectors in the preferred embodiment 1 of the present invention;

[0031] Fig.12 It is a structural schematic diagram and a cross-sectional diagram of a firewall in a preferred embodiment 1 of the present invention;

[0032] Fig.13 It is a partially enlarged schematic diagram of the structure of the firewall in the preferred embodiment 1 of the present invention;

[0033] Fig.14 It is a schematic diagram and a cross-sectional diagram of the wall connection hole arrangement of the fire wall in the preferred embodiment 1 of the present invention;

[0034] Fig.15 It is a partial enlarged cross-sectional view of the wall connection hole of the fire wall in the preferred embodiment 1 of the present invention;

[0035] Fig.16 Schematic diagram of the positional relationship between the embedded plug, the limiting member and the reinforcing member of the firewall in the preferred embodiment 1 of the present invention;

[0036] Fig.17 It is a schematic top view of the overall structure of the prefabricated scissors ladder in the preferred embodiment 2 of the present invention. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0038] Example 1

[0039] A modular product of a scissor ladder for high-rise buildings includes a prefabricated scissor ladder, which is installed and fixed in a reserved stairwell; multiple resting platforms are provided on the inner walls on both sides of the reserved stairwell, and multiple resting platforms are sequentially connected on both sides of the prefabricated scissor ladder from top to bottom; prestressed steel bars are provided in each step of the prefabricated scissor ladder. The stairwell is reserved like an elevator shaft, and the scissor ladder components are pre-productized and manufactured in the factory and then installed in the stairwell. This installation method can effectively improve the consistency of the scissor ladder components, improve the product yield, and reduce the workload of on-site installation, reduce overall costs, and improve building quality.

[0040] Specifically, refer to Figures 1 to 6The prefabricated scissors ladder includes a scissors ladder assembly; the scissors ladder assembly includes a firewall 3 and a first staircase 1 and a second staircase 2 respectively arranged on both sides of the firewall 3; the projections of the first staircase 1 and the second staircase 2 on the firewall 3 are arranged to intersect with each other along a direction perpendicular to the plane where the firewall 3 is located; the rest platform is specifically a high-end platform and a low-end platform respectively arranged at the upper and lower ends of both sides of the firewall 3; the first high end of the first staircase 1 and the second high end of the second staircase 2 are respectively connected to the high-end platform, and the first low end of the first staircase 1 and the second low end of the second staircase 2 are respectively connected to the low-end platform.

[0041] The scissor ladder assemblies are connected in pairs; the high-end platform of the previous set of scissor ladder assemblies is the low-end platform of the next set of scissor ladder assemblies. The high-end platform is divided into a first side high-end platform 41 and a second side high-end platform 42 by the firewall 3; the first side high-end platform 41 is connected to the first high end of the first staircase 1 of the next set of scissor ladder assemblies, and the second side high-end platform 42 is connected to the second low end of the second staircase 2 of the previous set of scissor ladder assemblies.

[0042] The low-end platform is divided into a first side low-end platform and a second side low-end platform 52 by the firewall 3; the first side low-end platform is connected to the first low end of the first staircase 1 of the previous group of scissors ladder components, and the second side low-end platform 52 is connected to the second high end of the second staircase 2 of the next group of scissors ladder components.

[0043] The first side high-end platform 41 and the second side low-end platform 52 are both provided with a lap groove 411, which is used to overlap the first high end of the first staircase 1 and the second high end of the second staircase 2 respectively; the depth of the lap groove 411 is twice the thickness of one step of the first staircase 1 or the second staircase 2; so that when the first staircase 1 or the second staircase 2 is overlapped on the lap groove 411, the upper end of the lap groove 411 automatically forms a step. By directly overlapping the first staircase 1 and the second staircase 2 on the high-end platform and the low-end platform, the high-end platform and the low-end platform directly become the next step at the end of the first staircase 1 and the second staircase 2. Such a design can effectively save the connection materials between the first staircase 1 and the second staircase 2 and the rest platform, which is conducive to reducing the production cost.

[0044] The first high end and the second high end are both provided with a connection hole 11, and the overlap groove 411 is provided with a connection matching hole 412. The first high end and the second high end are fixedly connected to the overlap groove 411 by inserting the first connection member into the connection hole 11 and the connection matching hole 412; in this embodiment, the connection hole 11 and the connection matching hole 412 are both screw holes, and the first connection member is a screw. The first staircase 1 and the second staircase 2 are respectively provided with hoisting holes 12 at both ends for hoisting the first staircase 1 and the second staircase 2.

[0045] The first low end and the second low end are respectively placed on the second side high end platform 42 and the first side low end platform 51, so that the second side high end platform 42 and the first side low end platform directly become the next step of the end step of the first staircase 1 or the second staircase 2. A high end platform is the high end connection of a staircase and the bottom end connection of the next staircase, and is separated by a fire wall 3 so that the first staircase 1 on one side of the fire wall 3 is connected to the second staircase 2 on the other side of the fire wall 3, and then connected to the next first staircase 1 on one side of the fire wall 3, thereby forming two independent staircases. In order to improve the strength of the scissors ladder, a hollow groove 13 is provided in each step of the first staircase 1 and the second staircase 2, and a prestressed steel bar 14 is provided in each step; the length direction of the hollow groove 13 is the width direction of the step.

[0046] The side edges of the first staircase 1 and the second staircase 2 extend upward for a distance in the vertical direction to form flanges. By setting flanges on both sides of the first staircase 1 and the second staircase 2, the fire wall on the side of the staircase can be effectively protected in the subsequent daily maintenance of the staircase, and sewage when cleaning the staircase can be prevented from scouring the fire wall 3, and the fire wall 3 can also be prevented from being hit during the daily use of the staircase.

[0047] Specifically, refer to Figures 7 to 11 , the upper and lower parts of the fire wall 3 are connected by a wall connector; the wall connector 6 includes a first connecting part 61 and a second connecting part 62 which are arranged in parallel with each other, and also includes a third connecting part 63; the two ends of the third connecting part 63 are respectively connected to the first connecting part 61 and the second connecting part 62; the length direction of the third connecting part 63 is consistent with the thickness direction of the fire wall 3; the first connecting part 61, the second connecting part 62 and the third connecting part 63 are all located on the same plane; after the first connecting part 61 passes through the gap between the fire walls 3 and the fire walls 3, the third connecting part 63 reaches the gap between the fire walls 3, and the third connecting part 63 is rotated so that the first connecting part 61 and the second connecting part 62 are rotated and respectively fit closely with the two side surfaces of the fire wall 3. Specifically, the third connecting part 63 is a cylindrical rotating shaft.

[0048] The two ends of the third connection part 63 extend a distance in opposite directions perpendicular to the length direction of the third connection part 63 to form the first connection part 61 and the second connection part 62. When the first connection part 61 passes through the gap between the firewalls 3, the length directions of the second connection part 62 and the third connection part 63 are both located on the same horizontal plane as the plane where the gap between the firewalls 3 is located. After the first connection part 61 passes through the gap between the firewalls 3, after the third connection part 63 rotates, the length directions of the first connection part 61 and the second connection part 62 are both spaced from the plane where the gap between the firewalls 3 is located by a locking angle. In this embodiment, the locking angle is specifically 90°.

[0049] In order to make the connection between the wall connector 6 and the fire wall 3 more secure, a first limiting piece 611 is provided at the end of the first connecting portion 61, and a limiting hole 31 is provided on the wall surface of the fire wall 3. The first limiting piece 611 cooperates with the limiting hole 31 to limit the position as the first connecting portion 61 rotates. The end of the first connecting portion 61 extends a distance in the limiting angle direction along the length direction of the first connecting portion 61 to form the first limiting piece 611; the first limiting piece 611 is inserted into the limiting hole 31 to realize the mutual limitation between the wall connector 6 and the fire wall 3. Specifically, the thickness at the edges of the two side surfaces of the fire wall 3 is less than the thickness of the fire wall 3, and the limiting hole 31 is set at a distance from the edge of the fire wall 3. After the first limiting piece 611 is inserted into the limiting hole 31, the distance between the first connecting portion 61 and the second connecting portion 62 along the length direction of the third connecting portion 63 is not greater than the thickness of the fire wall 3. In this way, after the first connection part 61 and the second connection part 62 are connected, a painting space can be reserved when painting the wall to cover the wall connection member 6, so as to avoid the fire wall 3 being abrupt at the connection. In this embodiment, the limiting angle is 90°.

[0050] The wall surfaces on both sides of the fire wall 3 are provided with the limiting holes 31; two wall connectors 6 form a group, and each group of wall connectors 6 are arranged opposite to each other; the two first connecting parts 61 in each group of wall connectors 6 are inserted into the gap between the fire walls 3 from opposite directions.

[0051] The end of the second connection part 62 extends a distance at a limiting angle along the length direction of the second connection part 62 to form a second limiting member 621; the second limiting member 621 is inserted into the limiting hole 31 on the firewall 3 below the firewall 3 into which the first limiting member 611 is inserted, and limits the mutual position between the wall connection member 6 and the upper and lower firewalls 3. A wall connection member 6 is simultaneously fixed to the upper wall and the lower wall, so that the connection between the firewalls 3 is more stable.

[0052] The first connection part 61 and the second connection part 62 are used to be fixed to the wall, and the third connection part 63 connects the first connection part 61 and the second connection part 62; since the first connection part 61, the second connection part 62 and the third connection part 63 are at the same level, the first connection part 61 can be passed through the gap between the firewalls 3 so that the first connection part 61 and the second connection part 62 are located on both sides of the firewall 3, and then the third connection part 63 located in the gap between the firewalls 3 is rotated to rotate the first connection part 61 and the second connection part 62 that are originally located on the same horizontal plane as the gap to the angle of abutment with the walls on both sides of the firewall 3. And since the first connection part 61 and the second connection part 62 are parallel to each other, the two firewalls 3 can be accurately connected to avoid tilting and misalignment between the firewalls 3. The two firewalls 3 can be accurately connected through the action of "one plug and one turn", and the structure is simple and easy to operate. The wall connection part 6 and the upper and lower firewalls 3 are fixed by setting the connection groove and the first limiter 611 and the second limiter 621 to enhance the firmness. The two sides of the fire wall 3 are provided with bolt holes 33, which are respectively used to be fixedly connected with the side parts of the first high end and the second high end. The fire wall 3 is specifically a sandwich fire wall, and cement concrete is provided on both sides of the sandwich fire wall, and light foam soil is provided between the cement concrete to reduce the weight of the fire wall 3 for easy hoisting.

[0053] refer to Figures 12 to 16 , like the prefabricated scissors ladder, the fire wall is also prefabricated and processed before being transported to the construction site. The fire wall needs to be hoisted during transportation, so a wall connection hole 32 needs to be provided; this solution includes a pre-embedded plug 8; the fire wall 3 is provided with the wall connection hole 32, and a limit member 71 is provided in the wall connection hole 32; the pre-embedded plug 8 is inserted into the wall connection hole 32 to tightly seal the wall connection hole 32. A protective sleeve 83 is provided at one end of the pre-embedded plug 8 away from the wall connection hole 32. In this embodiment, the protective sleeve 83 is specifically a silicone protective sleeve, which is used to protect the pre-embedded plug 8 so that the pre-embedded plug 8 does not contact with cement, ensuring that the pre-embedded plug 8 can be easily removed.

[0054] One end of the embedded plug 8 inserted into the wall connection hole 32 is specifically the insertion end 82, and the end of the insertion end 82 away from the wall connection hole 32 is the plug head 81, and the outer sleeve of the plug head 81 is provided with the protective sleeve 83. The projection of the insertion end 82 along its length direction is located in the plane where the plug head 81 is located; the periphery of the plug head 81 is against the fire wall 3. An elastic device 84 is also provided between the top of the plug head 81 and the protective sleeve 83. In this embodiment, the elastic device 84 is specifically an elastic sponge or a spring. Other forms of elastic devices 84 can also be used, and the protection scope of the present invention cannot be limited by this.

[0055] The stopper 71 is specifically an internal thread disposed in the wall connection hole 32 ; the outer surface of the insertion end 82 is provided with an external thread 821 ; the wall connection hole 32 and the insertion end 82 are connected by threads.

[0056] A reinforcement is welded to one end of the stopper 71 away from the plug head 81; the reinforcement is arranged in the firewall 3. In this embodiment, the reinforcement is specifically a hook reinforcement 72. In order to facilitate the removal of the embedded plug 8, in this embodiment, a cross-shaped notch 811 is provided on the plug head 81; a straight-shaped notch can also be used to remove the embedded plug 8, which is an equivalent replacement and cannot be used to limit the protection scope of the present invention.

[0057] By pre-embedding a pre-embedded plug 8 in the wall connection hole 32, dust during the construction process and cement during the pouring process can be prevented from entering the wall connection hole 32, causing the problem of clogging the wall connection hole 32. When the firewall 3 is made in the factory, a pre-embedded plug 8 is pre-embedded, and when the construction is to be carried out, the pre-embedded plug 8 is taken out through a straight cut or a cross cut, and it can be used to hoist the firewall 3. In addition, the connection between the limiter 71 and the firewall 3 is strengthened by a reinforcing member to prevent the limiter 71 from being offset or deformed when the limiter 71 is separated from the pre-embedded plug 8. By setting an elastic device 84, after the firewall 3 is poured, the protective cover 83 can be cut open so that the elastic device 84 pops up, which is convenient for the staff to find the position of the pre-embedded plug 8. In addition, the pre-embedded plug 8 can be returned to the factory for reuse after being removed, saving resources and reducing the production cost of the enterprise to a certain extent. And by setting an internal thread in the wall connection hole 32, it is convenient to use the wall connection hole 32 for subsequent lifting, which is convenient to operate and has no technical difficulty.

[0058] The present invention provides a method for manufacturing a modular product of a scissor ladder for a high-rise building, and a reserved scissor ladder is placed in a reserved stairwell. The method includes the reservation of a stairwell opening, the prefabricated products of the scissor ladder in the stairwell, the prefabricated products of the fire wall between the stair steps in the stairwell, and the hoisting, installation and fixing methods of the prefabricated components in the stairwell. The stair steps and the finished components of the fire wall of the prefabricated scissor ladder are placed in the stairwell for installation and fixing. The two ends of the prefabricated scissor ladder have pre-set stair rest platforms and platform beams at the same height of each floor of the high-rise building from top to bottom, and the stair steps and fireproof partition walls are installed on the platform beams of each floor. The designer no longer needs to consider the component design within the range of the staircase, and only needs to reserve the cavity of the stairwell and consider the force transmission at both ends of the platform beam; the reserved scissor ladder adopts a variety of methods such as prestressing to reduce the amount of materials used, so as to achieve the purpose of saving costs and saving horizontal and vertical transportation workload; the reserved fire wall adopts a sandwich panel method to meet the rigidity requirements of transportation and installation, and meet the requirements of fire protection, so as to achieve the purpose of saving costs and saving horizontal and vertical transportation workload. The overall invention achieves the purpose of saving money, time and labor.

[0059] Example 2

[0060] The first staircase 1 and the second staircase 2 are equally divided into a first side staircase 101 and a second side staircase 102 along their length direction; the first side staircase 101 and the second side staircase 103 are connected and fixed by an adhesive 103. The first staircase 1 and the second staircase 2 are divided into two in order to reduce the weight of the prefabricated scissor ladder and facilitate installation.

[0061] The above is only a preferred specific implementation of the present invention, but the design concept of the present invention is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the present invention within the technical scope disclosed by the present invention shall be deemed to infringe the protection scope of the present invention.

Claims

1. A modular product of a high-rise building scissor ladder, characterized in that It comprises a prefabricated scissor ladder, which is placed in a reserved stairwell and installed and fixed; multiple resting platforms are arranged on the inner walls on both sides of the reserved stairwell, and multiple resting platforms are sequentially connected on both sides of the prefabricated scissor ladder from top to bottom; each step of the prefabricated scissor ladder is provided with prestressed steel bars; The prefabricated scissor ladder comprises a scissor ladder assembly; the scissor ladder assembly comprises a fire wall, and the fire wall comprises two upper and lower ones; The upper and lower fire walls are connected by a wall connector; the wall connector includes a first connector and a second connector which are arranged in parallel with each other, and also includes a third connector; two ends of the third connector connect the first connector and the second connector; the length direction of the third connector is consistent with the thickness direction of the fire wall; the first connector, the second connector and the third connector are all located on the same plane; after the first connector passes through the gap between the fire walls, the third connector reaches the gap between the fire walls, and the third connector is rotated so that the first connector and the second connector are rotated and fit tightly with the two side surfaces of the wall respectively.

2. The high-rise building scissor ladder modular product according to claim 1 is characterized in that: The scissors ladder assembly also includes a first staircase and a second staircase respectively arranged on both sides of the firewall; the projections of the first staircase and the second staircase on the firewall are arranged to intersect with each other along a direction perpendicular to the plane where the firewall is located; the rest platform is specifically a high-end platform and a low-end platform respectively arranged at the upper and lower ends of both sides of the firewall; the first high end of the first staircase and the second high end of the second staircase are respectively connected to the high-end platform, and the first low end of the first staircase and the second low end of the second staircase are respectively connected to the low-end platform; the scissors ladder assemblies are assembled in pairs from top to bottom; the high-end platform of the previous group of scissors ladder assemblies is the low-end platform of the next group of scissors ladder assemblies.

3. The high-rise building scissor ladder modular product according to claim 2 is characterized in that: The high-end platform is divided into a first side high-end platform and a second side high-end platform by the firewall; the first side high-end platform is connected to the first high end of the first staircase of the next group of scissor ladder components, and the second side high-end platform is connected to the second low end of the second staircase of the previous group of scissor ladder components; the low-end platform is divided into a first side low-end platform and a second side low-end platform by the firewall; the first side low-end platform is connected to the first low end of the first staircase of the previous group of scissor ladder components, and the second side low-end platform is connected to the second high end of the second staircase of the next group of scissor ladder components; The first low end and the second low end are respectively placed on the second side high end platform and the first side low end platform, so that the second side high end platform and the first side low end platform directly become the next step of the end step of the first staircase or the second staircase.

4. The high-rise building scissor ladder modular product according to claim 3 is characterized in that: The high-end platform on the first side and the low-end platform on the second side are both provided with a lap groove, which is respectively used to overlap the first high end of the first staircase and the second high end of the second staircase; the depth of the lap groove is twice the thickness of one of the steps of the first staircase or the second staircase; so that when the first staircase or the second staircase is overlapped on the lap groove, a step is automatically formed at the upper end of the lap groove; the first high end and the second high end are both provided with connecting holes, and the lap groove is provided with connecting matching holes, and the first high end and the second high end are fixedly connected to the lap groove by inserting the first connecting piece into the connecting hole and the connecting matching hole; the first staircase and the second staircase are respectively provided with lifting holes at both ends.

5. The modular product of high-rise building scissor ladder according to any one of claims 2 to 4, characterized in that: The side edges of the first staircase and the second staircase extend upward for a distance in the vertical direction to form flanges.

6. The high-rise building scissor ladder modular product according to claim 5 is characterized in that: A hollow groove is arranged in each step of the first staircase and the second staircase; the length direction of the hollow groove is the width direction of the step.

7. The high-rise building scissor ladder modular product according to claim 6 is characterized in that: Bolt holes are provided on both sides of the fire wall, which are respectively used for fixed connection with the side portions of the first high end and the second high end.

8. The high-rise building scissor ladder modular product according to claim 7 is characterized in that: A first limiting piece is provided at the end of the first connecting part, and a second limiting piece is provided at the end of the second connecting part. A limiting hole is provided on the wall surface of the fire wall. The first limiting piece and the second limiting piece cooperate with the limiting hole to limit the position as the first connecting part and the second rotating part rotate respectively. The ends of the first connecting part and the second connecting part extend a distance in the direction of the limiting angle spaced apart from the length direction of the first connecting part and the second connecting part respectively to form the first limiting piece and the second limiting piece.

9. The modular product of high-rise building scissor ladder according to any one of claims 2, 3, 4, 6, 7 or 8, characterized in that: The first staircase and the second staircase are equally divided into a first side staircase and a second side staircase along their length direction; the first side staircase and the second side staircase are connected and fixed by an adhesive.

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