CN215106722U - Modular product of scissors ladder for high-rise building - Google Patents

Abstract

The utility model provides a modular product of a scissor ladder for a high-rise building, which comprises a prefabricated scissor ladder, wherein the prefabricated scissor ladder is arranged in a reserved stair well for installation and fixation; a plurality of rest platforms are arranged on the inner walls of the two sides of the reserved stairwell, and the two sides of the prefabricated scissor ladder are sequentially connected with the rest platforms from top to bottom; each step of the prefabricated scissor ladder is provided with prestressed reinforcements. The scissor ladder can be conveniently installed by using the technical scheme.

Description

Modular product of scissors ladder for high-rise building

Technical Field

The utility model relates to a stair construction field specifically indicates a high-rise building scissors ladder modular product.

Background

In high-rise buildings, although elevators are used for traveling, stairs are also indispensable for fire safety, and two independent stairs are also required. In the prior art, the scissor type stairs are usually installed in a stairwell after being assembled on site, so that the installation mode is high in cost, and the yield is to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-rise building scissors ladder modular product realizes the convenient installation of scissors ladder.

In order to solve the technical problem, the utility model provides a modular product of a scissor ladder for a high-rise building, which comprises a prefabricated scissor ladder, wherein the prefabricated scissor ladder is arranged in a reserved stair well and is fixedly installed; a plurality of rest platforms are arranged on the inner walls of the two sides of the reserved stairwell, and the two sides of the prefabricated scissor ladder are sequentially connected with the rest platforms from top to bottom; each step of the prefabricated scissor ladder is provided with prestressed reinforcements.

In a preferred embodiment, the pre-formed scissor ladder comprises a scissor ladder assembly; the scissor ladder assembly comprises a firewall, a first stair and a second stair, wherein the first stair and the second stair are respectively arranged on two sides of the firewall; the first stair and the second stair are arranged in a manner of intersecting with each other along the projection of the first stair and the projection of the second stair on the firewall in the direction perpendicular to the plane where the firewall is located; the rest platform is a high-end platform and a low-end platform which are respectively arranged at the upper end and the lower end of the two sides of the firewall; the first high end of the first stair and the second high end of the second stair are respectively connected with the high-end platform, and the first low end of the first stair and the second low end of the second stair are respectively connected with the low-end platform; the upper and lower two phases of the scissor ladder assembly are spliced; the high-end platform of the upper group of scissor ladder assemblies is the low-end platform of the next group of scissor ladder assemblies.

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 with the first high end of the first stair of the next group of scissors ladder assemblies, and the second side high-end platform is connected with the second low end of the second stair of the next group of scissors ladder assemblies; 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 with the first low end of the first stair of the scissors ladder assembly of the upper group, and the second side low-end platform is connected with the second high end of the second stair of the scissors ladder assembly of the lower group;

the first low end and the second low end are respectively arranged 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 tail end steps of the first stair or the second stair.

In a preferred embodiment, the first lateral high-end platform and the second lateral low-end platform are both provided with a lap joint groove for respectively lapping the first high end of the first stair and the second high end of the second stair; the depth of the overlapping groove is twice of the thickness of one step of the first stair or the second stair; when the first stair or the second stair are lapped on the lapping groove, the upper end of the lapping groove automatically forms a stair.

In a preferred embodiment, the first high end and the second high end are provided with connecting holes, the lapping groove is provided with connecting matching holes, and the first high end and the second high end are fixedly connected with the lapping groove by inserting a first connecting piece into the connecting holes and the connecting matching holes; and hoisting holes are respectively formed at two ends of the first stair and the second stair.

In a preferred embodiment, the two side edges of the first stair and the second stair extend upwards for a certain distance along the vertical direction to form flanges.

In a preferred embodiment, each step of the first stair and the second stair is provided with a hollow groove; the length direction of the hollow-out groove is the width direction of the ladder.

In a preferred embodiment, the upper and lower firewalls are connected by a wall connector; the wall connecting piece comprises a first connecting part, a second connecting part and a third connecting part, wherein the first connecting part and the second connecting part are arranged in parallel; two ends of the third connecting part are connected with the first connecting part and the second connecting part; the length direction of the third connecting part is consistent with the thickness direction of the firewall; the first connecting part, the second connecting part and the third connecting part are all positioned on the same plane; after the first connecting part penetrates through a gap between the firewall and the third connecting part, the third connecting part reaches the gap between the firewalls, and the third connecting part is rotated to enable the first connecting part and the second connecting part to rotate and be tightly attached to two side faces of the wall body respectively; the two sides of the firewall are respectively provided with bolt holes which are respectively used for being fixedly connected with the side parts of the first high end and the second high end.

In a preferred embodiment, a first limiting member is disposed at an end of the first connecting portion, a second limiting member is disposed at an end of the second connecting portion, a limiting hole is disposed on a wall surface of the firewall, and the first limiting member and the second limiting member are respectively matched with the limiting hole for limiting along with rotation of the first connecting portion and the second rotating portion; the tail ends of the first connecting part and the second connecting part respectively extend for a distance along the length direction of the first connecting part and the second connecting part at intervals of limiting angle to form the first limiting part and the second limiting part.

In a preferred embodiment, the first stair and the second stair are divided into a first side stair and a second side stair along the length direction of the first stair and the second stair; the first side stair and the second side stair are fixedly connected through an adhesive.

Compared with the prior art, the technical scheme of the utility model possess following beneficial effect:

the utility model provides a high-rise building scissors ladder modular product reserves the stairwell like reserving the elevartor shaft, and scissors ladder subassembly is installed in the stairwell after productization preparation in advance in the mill. The prefabricated scissor ladder is manufactured by utilizing the prestressed reinforcement, and the rigidity of the prefabricated scissor ladder is improved. The mounting mode can effectively improve the consistency of the scissor ladder assembly, improve the yield of products, reduce the field mounting workload, reduce the overall cost and improve the building quality. Through making high-end platform and low-end platform directly become the terminal next ladder of first stair and second stair with first stair and the direct overlap joint of second stair on high-end platform and low-end platform, linking material between first stair and second stair and the half space can effectively be saved to such design, is favorable to reducing the cost of manufacture. One high-end platform is also connected for the bottom of next stair for the high-end connection of a stair to by preventing that the wall separation makes the first stair of preventing hot wall one side connect the second stair of preventing hot wall opposite side, connect again and prevent hot wall one side's next first stair, form two mutually independent stairs from this. The first stair and the second stair are divided into two parts so as to reduce the weight of the prefabricated scissor ladder and facilitate installation.

Set up the turn-ups through the both sides at first stair and second stair, can effectively protect the hot wall of preventing of stair side in the follow-up daily maintenance of stair, the sewage when preventing to wash stair washes away prevents hot wall, can also prevent that the hot wall is strikeed in the daily use of stair.

Through set up the fretwork groove on first stair and second stair, can effectively alleviate the weight of first stair and second stair. Similarly for the convenience of transportation, the weight of the first stair and the second stair is reduced, when the prefabricated scissor ladder is manufactured, the first stair and the second stair are equally divided into the first side stair and the second side stair, the weight can be effectively reduced in the transportation process, the transportation is convenient, and the first side stair and the second side stair are fixedly connected through the adhesive.

The wall connecting piece comprises a first connecting part, a second connecting part and a third connecting part; the first connecting part and the second connecting part are used for being fixed with a firewall, and the third connecting part is connected with the first connecting part and the second connecting part; because first connecting portion, second connecting portion and third connecting portion are in same level, so can pass through the gap with first connecting portion between by preventing the hot wall and make first connecting portion and second connecting portion be in the both sides of preventing hot wall earlier, the rethread rotates the third connecting portion that is arranged in between the gap between the hot wall for first connecting portion and second connecting portion that originally and the gap was arranged in on the same horizontal plane rotate the angle of weighing and preventing the mutual butt of both sides wall of hot wall. And because first connecting portion and second connecting portion are parallel to each other, can make accurately to be connected between two prevent hot wall, avoid the slope dislocation between the wall body. Through the action of 'one insertion and one rotation', the two walls can be accurately connected, the structure is simple, and the operation is easy. Through setting up spacing hole and first locating part and second locating part and realizing wall body connecting piece and prevent the spacing fixed of hot wall from top to bottom to the realization is prevented the connection between the hot wall from top to bottom, strengthens the fastness.

Drawings

Fig. 1 is a schematic view of the overall structure of a prefabricated scissor ladder according to the preferred embodiment of the present invention 1;

fig. 2 is an exploded view of the overall structure of the prefabricated scissor ladder according to the preferred embodiment of the present invention;

fig. 3 is a schematic top view of the overall structure of the prefabricated scissor ladder according to the preferred embodiment of the present invention;

fig. 4 is a schematic side view of a first stair of the prefabricated scissor ladder according to the preferred embodiment of the present invention;

fig. 5 is a side view partially enlarged schematic view of a first stair of the prefabricated scissor ladder according to the preferred embodiment of the present invention;

fig. 6 is a schematic front view of a first stair of the prefabricated scissor ladder according to the preferred embodiment of the present invention;

fig. 7 is a schematic view (one) of the connection relationship between the wall connecting member and the firewall in the preferred embodiment of the present invention 1;

fig. 8 is a partially enlarged schematic view (one) of the connection relationship between the wall connecting member and the firewall in the preferred embodiment of the present invention 1;

fig. 9 is an exploded view of the connection relationship between the wall connecting member and the firewall according to the preferred embodiment of the present invention 1;

fig. 10 is an exploded partial enlarged schematic view of a connection relationship between a wall body connecting member and a firewall according to preferred embodiment 1 of the present invention;

fig. 11 is a schematic diagram of a connection state and position relationship of a group of wall connectors in the preferred embodiment 1 of the present invention;

fig. 12 is a schematic structural view and a sectional view of a firewall in accordance with a preferred embodiment of the present invention;

fig. 13 is a partially enlarged schematic view of the structure of the firewall in preferred embodiment 1 of the present invention;

fig. 14 is a schematic view and a sectional view of a wall connecting hole of a firewall according to the preferred embodiment of the present invention;

fig. 15 is a partially enlarged cross-sectional view of a wall connecting hole of a firewall according to the preferred embodiment of the present invention;

fig. 16 is a schematic view of a position relationship between a pre-buried plug of a firewall, a limiting member and a reinforcing member according to the preferred embodiment of the present invention 1;

fig. 17 is a schematic top view of the overall structure of the prefabricated scissor ladder according to the preferred embodiment of the present invention.

Detailed Description

The invention is further described with reference to the drawings and the detailed description.

Example 1

A modular product of a scissor ladder for a high-rise building comprises a prefabricated scissor ladder, wherein the prefabricated scissor ladder is arranged in a reserved stair well and is fixedly installed; a plurality of rest platforms are arranged on the inner walls of the two sides of the reserved stairwell, and a plurality of rest platforms are sequentially connected to the two sides of the prefabricated scissor ladder from top to bottom; each step of the prefabricated scissor ladder is provided with prestressed reinforcements. The elevator shaft is reserved like an elevator shaft, and the scissor ladder assembly is manufactured in advance in a factory and then installed in the elevator shaft. The mounting mode can effectively improve the consistency of the scissor ladder assembly, improve the yield of products, reduce the field mounting workload, reduce the overall cost and improve the building quality.

Specifically, referring to fig. 1-6, the pre-formed scissor ladder includes a scissor ladder assembly; the scissor ladder assembly comprises a firewall 3, and a first ladder 1 and a second ladder 2 which are respectively arranged on two sides of the firewall 3; the first stair 1 and the second stair 2 are arranged in a manner of intersecting with each other along the projection of the plane direction perpendicular to the firewall 3 on the firewall 3; the rest platform is a high-end platform and a low-end platform which are respectively arranged at the upper end and the lower end of the two sides of the firewall 3; the first high end of the first stair 1 and the second high end of the second stair 2 are respectively connected with the high-end platform, and the first low end of the first stair 1 and the second low end of the second stair 2 are respectively connected with the low-end platform.

The upper and lower two phases of the scissor ladder assembly are spliced; the high-end platform of the upper group of scissor ladder assemblies is the low-end platform of the next group 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 with 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 with the second low end of the second staircase 2 of the next set of scissor ladder assemblies.

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 lower end platform is connected with the first lower end of the first stair 1 of the scissors ladder assembly of the upper group, and the second side lower end platform 52 is connected with the second high end of the second stair 2 of the scissors ladder assembly of the lower group.

The first side high-end platform 41 and the second side low-end platform 52 are both provided with a lap joint groove 411, and the lap joint grooves are respectively used for lapping a first high end of the first stair 1 and a second high end of the second stair 2; the depth of the overlapping groove 411 is twice the thickness of one step of the first stair 1 or the second stair 2; when the first staircase 1 or the second staircase 2 is lapped on the lapping groove 411, the upper end of the lapping groove 411 automatically forms a step. Through making high-end platform and low-end platform directly become the terminal next ladder of first stair 1 and second stair 2 with first stair 1 and the direct overlap joint of second stair 2 on high-end platform and low-end platform, linking material between first stair 1 and second stair 2 and the half space can effectively be saved to such design, is favorable to reducing the cost of manufacture.

The first high end and the second high end are both provided with a connecting hole 11, the lapping groove 411 is internally provided with a connecting matching hole 412, and the first high end and the second high end are fixedly connected with the lapping groove 411 by inserting a first connecting piece into the connecting hole 11 and the connecting matching hole 412; in this embodiment, the connecting hole 11 and the connecting fitting hole 412 are both screw holes, and the first connecting member is a screw. And hoisting holes 12 are respectively formed at two ends of the first stair 1 and the second stair 2 and used for hoisting the first stair 1 and the second stair 2.

The first low end and the second low end are respectively arranged on the second high side platform 42 and the first low side platform 51, so that the second high side platform 42 and the first low side platform directly become the next step of the end steps of the first stair 1 or the second stair 2. One high-end platform is also connected for the bottom of next stair for the high-end connection of a stair to by preventing that hot wall 3 separates to make the first stair 1 of preventing hot wall 3 one side connect the second stair 2 of preventing hot wall 3 opposite side, connect the next first stair 1 of preventing hot wall 3 one side again, form two mutually independent stairs from this. In order to improve the strength of the scissor ladder, a hollow groove 13 is arranged in each ladder of the first ladder 1 and the second ladder 2, and a prestressed reinforcement 14 is arranged in each ladder; the length direction of the hollow-out groove 13 is the width direction of the ladder.

The two side edges of the first stair 1 and the second stair 2 extend upwards for a certain distance along the vertical direction to form flanges. Set up the turn-ups through the both sides at first stair 1 and second stair 2, can effectively protect the hot wall that prevents of stair side in the follow-up daily maintenance of stair, the sewage when preventing to wash stair erodees hot wall 3, can also prevent that hot wall 3 is strikeed in the daily use of stair.

Specifically, referring to fig. 7 to 11, the firewall 3 is connected up and down by wall connectors; the wall connecting piece 6 comprises a first connecting part 61, a second connecting part 62 and a third connecting part 63 which are arranged in parallel; the two ends of the third connecting part 63 are respectively connected with the first connecting part 61 and the second connecting part 62; the length direction of the third connecting portion 63 coincides with the thickness direction of the firewall 3; the first connecting part 61, the second connecting part 62 and the third connecting part 63 are all positioned on the same plane; after the first connecting portion 61 penetrates through a gap between the firewall 3 and the firewall 3, the third connecting portion 63 reaches the gap between the firewall 3, and the third connecting portion 63 is rotated to enable the first connecting portion 61 and the second connecting portion 62 to rotate and to be tightly attached to two side faces of the firewall 3 respectively. Specifically, the third connecting portion 63 is a cylindrical rotating shaft.

The two ends of the third connecting portion 63 respectively extend in a direction perpendicular to the length direction of the third connecting portion 63 and in opposite directions for a distance to form the first connecting portion 61 and the second connecting portion 62. When the first connecting portion 61 penetrates through the gap between the fire walls 3, the length directions of the second connecting portion 62 and the third connecting portion 63 are both located on the same horizontal plane as the plane where the gap between the fire walls 3 is located. After the first connecting portion 61 penetrates through the gap between the firewall 3 and the third connecting portion 63 rotates, the length directions of the first connecting portion 61 and the second connecting portion 62 and the plane where the gap between the firewall 3 is located are at intervals and locked at angles. In the present embodiment, the locking angle is specifically 90 °.

In order to make the wall connecting member 6 and the firewall 3 more firm, the end of the first connecting portion 61 is provided with a first limiting member 611, the wall surface of the firewall 3 is provided with a limiting hole 31, and the first limiting member 611 cooperates with the limiting hole 31 to limit along with the rotation of the first connecting portion 61. The end of the first connection portion 61 extends for a distance along a direction spaced from the length direction of the first connection portion 61 by a limiting angle to form the first limiting member 611; the first limiting member 611 is inserted into the limiting hole 31 to limit the wall connector 6 and the firewall 3 from each other. Specifically, the thickness of the edge of the two side surfaces of the firewall 3 is smaller than the thickness of the firewall 3, the limiting hole 31 is disposed at the edge away from the firewall 3, and after the first limiting member 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 firewall 3. After the first connecting portion 61 and the second connecting portion 62 are connected, a painting space can be reserved when the wall connecting member 6 is covered by the painting wall, and the fire wall 3 is prevented from being obtrusive at the connecting position. In this embodiment, the limit angle is 90 °.

The wall surfaces on the two sides of the firewall 3 are provided with the limiting holes 31; two wall connecting pieces 6 are used as a group, and the wall connecting pieces 6 in each group are arranged oppositely; the two first connecting portions 61 of each set of the wall connecting members 6 are inserted into the gaps between the fire walls 3 from opposite directions.

The end of the second connecting portion 62 extends for a distance along the length direction of the second connecting portion 62 at a spacing angle to form a second limiting member 621; the second limiting member 621 is inserted into the limiting hole 31 of the firewall 3 below the firewall 3 into which the first limiting member 611 is inserted, and the wall connecting member 6 and the upper and lower firewalls 3 limit each other. Realize that a wall body connecting piece 6 is spacing fixed with last wall body and lower wall body simultaneously for prevent that the connection between the wall body 3 is more firm.

The first connecting part 61 and the second connecting part 62 are used for being fixed with a wall surface, and the third connecting part 63 is connected with the first connecting part 61 and the second connecting part 62; because first connecting portion 61, second connecting portion 62 and third connecting portion 63 are in same level, so can pass first connecting portion 61 by the gap between the fire wall 3 and make first connecting portion 61 and second connecting portion 62 be located the both sides of fire wall 3 partially, rethread rotates the third connecting portion 63 that is arranged in the gap between the fire wall 3 for first connecting portion 61 and second connecting portion 62 that originally and the gap is located on same level rotate the angle of saying and the both sides wall butt each other of fire wall 3. And since the first connecting portion 61 and the second connecting portion 62 are parallel to each other, the two firewalls 3 can be accurately connected, and the inclination and dislocation between the firewalls 3 can be avoided. Through the action of one inserting and one rotating, the two fire-proof walls 3 can be accurately connected, and the fire-proof wall is simple in structure and easy to operate. The wall connecting piece 6 and the upper and lower firewall 3 are fixed in a limiting manner by arranging the connecting groove and the first limiting piece 611 and the second limiting piece 621, so that the firmness is enhanced. (ii) a The two sides of the firewall 3 are provided with bolt holes 33 respectively for fixedly connecting with the side parts of the first high end and the second high end. Firewall 3 specifically prevents hot wall for the sandwich, the sandwich is prevented that hot wall's both sides are provided with cement concrete, is provided with light foam between the cement concrete for it is convenient for hoist and mount to alleviate the weight of preventing hot wall 3.

Referring to fig. 12 to 16, as with the prefabricated scissor ladder, the firewall is also prefabricated and processed and then transported to a construction site, and the firewall needs to be lifted during transportation, so that a wall connecting hole 32 needs to be formed; the scheme comprises the steps of embedding a plug 8; the firewall 3 is provided with the wall connecting hole 32, and a limiting piece 71 is arranged in the wall connecting hole 32; the embedded plugs 8 are inserted into the wall connecting holes 32 to tightly plug the wall connecting holes 32. And a protective sleeve 83 is arranged at one end of the embedded plug 8, which is far away from the wall connecting hole 32. In this embodiment, the protection sleeve 83 is specifically a silica gel protection sleeve, and is used for protecting the embedded plug 8, so that the embedded plug 8 is not in contact with cement, and the embedded plug 8 can be conveniently taken out.

The end, inserted into the wall connecting hole 32, of the embedded plug 8 is specifically an insertion end 82, the end, far away from the wall connecting hole 32, of the insertion end 82 is a plug head 81, and the protective sleeve 83 is sleeved outside the plug head 81. The projection of the insertion end 82 along the length direction thereof is located in the plane of the plug head 81; the periphery of the plug head 81 abuts against the firewall 3. An elastic device 84 is further arranged between the top end of the plug head 81 and the protecting sleeve 83. In the present embodiment, the elastic device 84 is embodied as an elastic sponge or a spring. Other forms of resilient means 84 may be used, and are not intended to limit the scope of the present invention.

The limiting member 71 is specifically an internal thread arranged in the wall connecting hole 32; the outer surface of the insertion end 82 is provided with an external thread 821; the wall connecting hole 32 is connected with the inserting end 82 through threads.

A reinforcing piece is welded at one end of the limiting piece 71, which is far away from the plug head 81; the reinforcement is arranged inside the firewall 3. In the present embodiment, the reinforcement is embodied as a hook reinforcement 72. In order to facilitate taking out the embedded plug 8, in this embodiment, a cross-shaped cut 811 is arranged on the plug head 81; used for taking out the pre-buried end cap 8, can also use the straight line mouth of drawing, belong to and equate to replace, can not injure with this the utility model discloses a protection scope.

The problem that the wall connecting hole 32 is blocked due to the fact that dust and cement enter the wall connecting hole 32 in the pouring process in the construction process is prevented by pre-burying a pre-buried plug 8 in the wall connecting hole 32. When the firewall 3 is manufactured in a factory, the embedded plug 8 is embedded in advance, and when construction is required, the embedded plug 8 is taken out through the linear notch or the cross notch, so that the firewall 3 can be hoisted. In addition, the connection between the limiting member 71 and the firewall 3 is reinforced by the reinforcing member, so that the limiting member 71 is prevented from being deviated or deformed when the limiting member 71 is separated from the embedded plug 8. Through setting up resilient means 84, can make and pour the completion back at preventing hot wall 3, open lag 83 and make resilient means 84 pop out, the staff of being convenient for seeks the position of pre-buried end cap 8. In addition, the embedded plug 8 can be reused in a factory after being taken down, so that resources are saved, and the production cost of an enterprise is reduced to a certain extent. And the internal thread is arranged in the wall connecting hole 32 to facilitate subsequent hoisting by the wall connecting hole 32, so that the operation is convenient and has no technical difficulty.

The utility model provides a modular product of a scissor ladder for a high-rise building, which comprises a reserved opening of a stair well and prefabricated products of the scissor ladder in the stair well; prefabricating and manufacturing a firewall between the stair sections in the stair well; also comprises a hoisting, mounting and fixing method of each prefabricated component in the stairwell. And placing the stair sections of the prefabricated scissor ladder and the firewall finished product components in the stair well for installation and fixation. The two ends of the prefabricated scissor ladder are provided with a preset stair rest platform and a preset platform beam from the top to the bottom and at the same height of each floor of a high-rise building, and the stair sections and the fireproof partition walls are arranged on the platform beams of each floor. The design of components in the range of the stairs is not considered any more by designers, and only the holes of the stairwell are reserved and the force transfer at the two ends of the platform beam is considered; the reserved scissor ladder adopts various methods such as prestress and the like to reduce the material consumption, thereby achieving the purposes of saving cost and horizontal and vertical transportation workload; the reserved firewall adopts a sandwich plate method, meets the rigidity requirements of transportation, installation and the like, meets the requirements of fire prevention and the like, and achieves the purposes of saving cost and horizontal and vertical transportation workload. The whole utility model achieves the purposes of saving money, time and labor.

Example 2

The first stair 1 and the second stair 2 are divided into a first side stair 101 and a second side stair 102 along the length direction; the first side stair 101 and the second side stair 103 are fixedly connected through an adhesive 103. The first stair 1 and the second stair 2 are divided into two parts so as to reduce the weight of the prefabricated scissor ladder and facilitate installation.

The above, only be the preferred embodiment of the present invention, but the design concept of the present invention is not limited to this, and any skilled person familiar with the technical field is in the technical scope disclosed in the present invention, and it is right to utilize this concept to perform insubstantial changes to the present invention, all belong to the act of infringing the protection scope of the present invention.

Claims (10)

1. A modular product of a scissor ladder for a high-rise building is characterized by comprising a prefabricated scissor ladder, wherein the prefabricated scissor ladder is arranged in a reserved stairwell and is fixedly installed; a plurality of rest platforms are arranged on the inner walls of the two sides of the reserved stairwell, and the two sides of the prefabricated scissor ladder are sequentially connected with the rest platforms from top to bottom; each step of the prefabricated scissor ladder is provided with prestressed reinforcements.

2. A high-rise building scissor ladder modular product as claimed in claim 1, wherein the prefabricated scissor ladder comprises a scissor ladder assembly; the scissor ladder assembly comprises a firewall, a first stair and a second stair, wherein the first stair and the second stair are respectively arranged on two sides of the firewall; the first stair and the second stair are arranged in a manner of intersecting with each other along the projection of the first stair and the projection of the second stair on the firewall in the direction perpendicular to the plane where the firewall is located; the rest platform is a high-end platform and a low-end platform which are respectively arranged at the upper end and the lower end of the two sides of the firewall; the first high end of the first stair and the second high end of the second stair are respectively connected with the high-end platform, and the first low end of the first stair and the second low end of the second stair are respectively connected with the low-end platform; the upper and lower two phases of the scissor ladder assembly are spliced; the high-end platform of the upper group of scissor ladder assemblies is the low-end platform of the next group of scissor ladder assemblies.

3. The modular high-rise building scissor ladder product of claim 2, wherein 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 with the first high end of the first stair of the next group of scissors ladder assemblies, and the second side high-end platform is connected with the second low end of the second stair of the next group of scissors ladder assemblies; 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 with the first low end of the first stair of the scissors ladder assembly of the upper group, and the second side low-end platform is connected with the second high end of the second stair of the scissors ladder assembly of the lower group;

the first low end and the second low end are respectively arranged 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 tail end steps of the first stair or the second stair.

4. A modular product of scissors ladder for high-rise buildings according to claim 3, wherein the first lateral high-end platform and the second lateral low-end platform are provided with a lap joint groove for respectively lapping the first high end of the first ladder and the second high end of the second ladder; the depth of the overlapping groove is twice of the thickness of one step of the first stair or the second stair; when the first stair or the second stair are lapped on the lapping groove, the upper end of the lapping groove automatically forms a stair.

5. The modular product of a scissors ladder for a high-rise building as claimed in claim 4, wherein the first high end and the second high end are both provided with a connecting hole, the lapping groove is provided with a connecting matching hole, and the first high end and the second high end are fixedly connected with the lapping groove by inserting a first connecting piece into the connecting hole and the connecting matching hole; and hoisting holes are respectively formed at two ends of the first stair and the second stair.

6. A modular product according to any one of claims 2 to 5, wherein the first and second stairs extend vertically upwardly a distance from each side edge to form a flange.

7. A modular product according to claim 6, wherein each of the first and second stairways is provided with a hollowed-out groove; the length direction of the hollow-out groove is the width direction of the ladder.

8. The modular product of a scissor ladder for a high-rise building as claimed in claim 7, wherein the upper and lower firewalls are connected by a wall connector; the wall connecting piece comprises a first connecting part, a second connecting part and a third connecting part, wherein the first connecting part and the second connecting part are arranged in parallel; two ends of the third connecting part are connected with the first connecting part and the second connecting part; the length direction of the third connecting part is consistent with the thickness direction of the firewall; the first connecting part, the second connecting part and the third connecting part are all positioned on the same plane; after the first connecting part penetrates through a gap between the firewall and the third connecting part, the third connecting part reaches the gap between the firewalls, and the third connecting part is rotated to enable the first connecting part and the second connecting part to rotate and be tightly attached to two side faces of the wall body respectively; the two sides of the firewall are respectively provided with bolt holes which are respectively used for being fixedly connected with the side parts of the first high end and the second high end.

9. The modular product of a scissors ladder for a high-rise building as claimed in claim 8, wherein the first connecting portion has a first limiting member at the end thereof, the second connecting portion has a second limiting member at the end thereof, and the firewall has a wall surface with a limiting hole, wherein the first limiting member and the second limiting member are respectively engaged with the limiting hole for limiting along with the rotation of the first connecting portion and the second rotating portion; the tail ends of the first connecting part and the second connecting part respectively extend for a distance along the length direction of the first connecting part and the second connecting part at intervals of limiting angle to form the first limiting part and the second limiting part.

10. A modular high-rise building scissor ladder product as claimed in any one of claims 2, 3, 4, 5, 7, 8 or 9, wherein the first and second stairs are each divided into a first and second lateral stairs along their length; the first side stair and the second side stair are fixedly connected through an adhesive.

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