CN113047551B

CN113047551B - Modular assembly type shear-fork-shaped steel structure outer wall stair and assembly method thereof

Info

Publication number: CN113047551B
Application number: CN202110327786.8A
Authority: CN
Inventors: 王幸; 周星岑
Original assignee: Shenzhen Ruixin Steel Structure Engineering Co ltd
Current assignee: Shenzhen Ruixin Steel Structure Engineering Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2022-11-11
Anticipated expiration: 2041-03-26
Also published as: CN113047551A

Abstract

The application relates to the field of building stairs, in particular to a modular assembly type scissor-type steel structure exterior wall stair and an assembly method thereof. In this application, make first assembly body and second assembly internal with lead to the door plant, connect stair and steering panel and connect as a whole, reduced the influence that the error that the human factor caused produced when connecting the stair installation, reach the success rate when having increased the installation of steel construction outdoor stair.

Description

Modular assembly type shear-fork-shaped steel structure outer wall stair and assembly method thereof

Technical Field

The application relates to the field of building stairs, in particular to a modular assembly type shear-fork-shaped steel structure outer wall stair and an assembly method thereof.

Background

At present outer wall stair are setting up the stair outside high-rise building wall body, and the usefulness of fleing when mainly supplying the conflagration is considered from the fire prevention angle direction, and outer wall stair often adopt the steel structural formula, and steel structure outer wall stair's fulcrum is few, weigh high, durable firm, and steel reuse, the construction waste that has significantly reduced, more green.

Referring to fig. 1, the general stair 8 of the steel structure outer wall stair comprises a supporting beam 81, a through door platform 82, a steering platform 83 and a stair section 84, the supporting beam 81 is formed by casting according to the height customization of the high-rise building 1, the through door platform 82 is aligned to the door frame 11 of the high-rise building 1, the steering platform 83 is located between two adjacent through door platforms 82, the steering platform 83 and the through door platform 82 are fixed to the supporting beam 81 through welding, the stair section 84 is arranged between the adjacent steering platform 83 and the through door platform 82, and two ends of the stair section 84 are fixed to the steering platform 83 and the through door platform 82 through welding respectively. When the steel structure outer wall stair is installed, the steering platform 83 and the through door platform 82 are welded on the supporting beam 81, and then the stair section 84 is placed between the steering platform 83 and the through door platform 82 and fixed.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when welding the platform that turns to and lead to the door platform, because artificial measurement and welded factor can make the interval between platform that turns to and the platform that leads to the door appear the error, the stair section can't be installed between platform that turns to and the platform that leads to the success rate when the outdoor stair of steel construction is installed to be low.

Disclosure of Invention

In order to improve the installation efficiency of the steel structure outdoor stair, the application provides a modular assembly type scissors-type steel structure outer wall stair and an assembly method thereof.

First aspect, this application provides a fork shaped steel structure outer wall stair is cut to modularization assembled adopts following technical scheme:

the utility model provides a fork shaped steel structure outer wall stair is cut to modularization assembled, the setting is in the high-rise building outside, steel structure outer wall stair includes a plurality of modular unit, two adjacent modular unit fixed connection, every modular unit all includes the support frame, first assembly body and second assembly body, the equal fixed connection of support frame and first assembly body and second assembly body, first assembly body and second assembly body all include logical door plant, connect stair and deflector, the connection stair top and the deflector fixed connection of first assembly body, the connection stair bottom and the logical door plant fixed connection of first assembly body, the connection stair bottom and the deflector fixed connection of second assembly body, the connection stair top and the logical door plant fixed connection of second assembly body, the deflector of the second assembly body is located the coplanar with the deflector of first assembly body.

By adopting the technical scheme, the steel structure outer wall stair is formed by combining and assembling a plurality of module units, the number of the module units is the same as the number of stories of a high-rise building, the steel structure outer wall stair can be suitable for the high-rise buildings with different stories, the high adaptability of the steel structure outer wall stair is realized, and meanwhile, the production efficiency of the steel structure outer wall stair is greatly improved due to the modularized property; when the single module unit is installed, the first assembly body and the second assembly body are directly erected on the supporting frame, so that the assembling period of the single module unit is shortened, the installing efficiency of the whole steel structure outer wall stair is improved, and the waste of human resources is reduced; the first assembly body and the second assembly body are internally provided with the through door plate, the connecting stairs and the steering plate which are connected into a whole, so that the influence of errors caused by human factors on the installation of the connecting stairs is reduced, and the success rate of the installation of the steel structure outdoor stairs is increased.

Optionally, all be provided with the card post between logical door plant and deflector and the support frame, card post and support frame fixed connection lead to the door plant and the deflector has all seted up the draw-in groove, draw-in groove and the cooperation of card post joint.

Through adopting above-mentioned technical scheme, because card post and support frame fixed connection, so the position of card post is fixed, when installing logical door board and steering panel, the draw-in groove that will lead to door board and steering panel all with card post joint, utilize the card post to provide the support to leading to door board and steering panel on the one hand, the convenience of carrying out welded fastening between assembly body and the supporting beam in later stage has been improved, on the other hand passes through the joint between card post and the draw-in groove, it is spacing to leading to door board and steering panel, stability when further having improved installation logical door board and steering panel.

Optionally, the logical door plant and deflector have all seted up the constant head tank, constant head tank and draw-in groove intercommunication, card post fixedly connected with locating lever, locating lever and card have the contained angle between the post, locating lever and constant head tank joint cooperation.

Through adopting above-mentioned technical scheme, when the draw-in groove and the card post joint of logical door board and steering panel, drive constant head tank and locating piece joint simultaneously, the setting of constant head tank and locating piece has realized fixing a position accurately and fast logical door board and steering panel, reduces the door board and the steering panel and the skew affiliated mounted position's of appearance condition to appear leading to.

Optionally, a split assembly is arranged between the steering plate of the first assembly body and the steering plate of the second assembly body, the split assembly comprises a split block and a split groove, the split block is fixedly connected with the steering plate of the second assembly body, the split groove is formed in the steering plate of the first assembly body, the split groove is a dovetail groove, and the split groove is in splicing fit with the split block.

By adopting the technical scheme, when the second assembly body is installed, the second assembly body is moved to be close to the first assembly body, the second assembly body drives the splicing block to be inserted into the splicing groove, so that the second assembly body and the first assembly body are spliced, and the connection between the second assembly body and the first assembly body is realized; and the shape of the splicing groove is arranged, so that the connection stability of the second assembly body and the first assembly body is further improved.

Optionally, the steering plate and the through door plate are both connected with a lifting ring, and the lifting ring, the steering plate and the through door plate are both detachably and fixedly connected.

By adopting the technical scheme, the lifting ring provides a force application point for the movement of the assembly body, so that the convenience for moving the assembly body is improved; and because the hanging ring is fixedly connected with the steering plate and the through door plate in a detachable manner, after the steering plate and the through door plate are installed, the hanging ring is detached for cyclic utilization, so that the utilization rate of the hanging ring is improved, and the purpose of energy conservation is realized.

Optionally, the steering plate and the through door plate are fixedly connected with screw pipes, screw rods are arranged between the screw pipes and the lifting rings, one ends of the screw rods are fixedly connected with the lifting rings, and the other ends of the screw rods are in threaded connection with the inner walls of the screw pipes.

Through adopting above-mentioned technical scheme, when the installation rings, remove rings and be close to the solenoid, then rotatory rings, rings drive the screw rod and rotate to make screw rod one end and solenoid threaded connection, thereby realized rings and assembly body between can dismantle fixed connection, improved rings installation and efficiency when dismantling simultaneously.

Optionally, the edges of the first assembly body and the second assembly body are fixedly connected with safety guardrails.

Through adopting above-mentioned technical scheme, utilize safety barrier to protect the personnel of walking in the steel construction stair, reduce the probability that the personnel accident takes place to fall from stair in the steel construction stair, further improved the security of the outdoor stair of steel construction.

Optionally, a connecting sleeve is arranged between the two safety guardrails of different assemblies at the steering plate and the through door plate, the connecting sleeve is sleeved outside the two safety guardrails, and two ends of the connecting sleeve are respectively in threaded connection with the two safety guardrails.

Through adopting above-mentioned technical scheme, after steering panel and logical door board installation are accomplished, utilize adapter sleeve to link together two safety barriers of the different assembly bodies to realize the compactness of connecting between two safety barriers, and then improve safety barriers's security.

In a second aspect, the application provides an assembly method of a modular assembly type scissors-type steel structure outer wall stair, which adopts the following technical scheme:

an assembly method of a modular assembly type shear-fork-shaped steel structure outer wall stair comprises the following steps:

s1, early preparation: cleaning broken stones on the ground of a place where a stair is to be installed, drilling a foundation plane, and accurately measuring the position where a support frame is required to be installed;

s2, fixing a support frame: accurately hoisting the support frame at a position required to be installed on the ground, and fixing the bottom end of the support frame with the ground;

s3, mounting a first assembly body: moving a lifting ring to be close to the position of a solenoid of a first assembly body, then rotating the lifting ring, wherein the lifting ring drives one end, away from the lifting ring, of a screw rod to be in threaded connection with the solenoid, lifting the first assembly body through the lifting ring after other lifting rings of the first assembly body are installed, moving the first assembly body into a support frame, driving a clamping groove to be clamped with a clamping column by the first assembly body, clamping a positioning groove with a positioning rod at the same time, clamping the first assembly body into the support frame, and then welding the first assembly body and the support frame;

s4, mounting a second assembly body: after the installation of the lifting ring is finished, the second assembly body is lifted through the lifting ring and is moved to a required installation position of the second assembly body in the support frame, the second assembly body also drives the clamping groove to be clamped with the clamping column, the positioning groove is clamped with the positioning rod, and then the second assembly body and the support frame are welded;

s5, installing an upper module unit: and hoisting the support frames in the upper module unit to the top ends of the installed support frames, fixedly connecting the two support frames, then repeating the steps to sequentially install the first assembly body and the second assembly body, finishing the installation of the upper module unit, and then sequentially installing the rest module units according to the number of layers of the required module units.

By adopting the technical scheme, before the steel structure outdoor stair is installed, the stair at the stair installation position is cleaned and tamped to ensure the stability of the steel structure outdoor stair at the installation position, and then the installation position is accurately measured, so that the steel structure outdoor stair is aligned with the door frames of each layer of the high-rise building, and the installation error of the stair is reduced; when the support frame is installed, the support frame is fixedly connected with the ground, and the bottom foundation of the steel structure outdoor stair is laid, so that the stability of the support frame is improved; when the first assembly body and the second assembly body are installed, the first assembly body and the second assembly body are lifted by the hanging ring to move, and the hanging ring is a connecting piece between the first assembly body and the second assembly body and a crane, so that the first assembly body and the second assembly body can be conveniently moved; through mutual matching of the clamping column and the clamping groove as well as the positioning rod and the positioning groove, the mounting positions of the first assembly body and the second assembly body are accurately positioned, and the mounting quality of the steel structure outdoor stair is improved; the same installation steps are repeated after the whole unit modules on the lower layer are installed, the unit modules on the upper layer are installed, the familiarity of workers to the installation steps is enhanced through the same operation for multiple times, the installation efficiency of the whole steel structure outdoor stair is greatly improved, and meanwhile, the success rate of the steel structure outdoor stair during installation is also increased.

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

1. through the arrangement of the support frame, the first assembly body and the second assembly body, the assembly period of a single module unit is shortened, the installation efficiency of the whole steel structure outer wall stair is improved, meanwhile, the influence of errors caused by human factors on the installation of the connecting stair is reduced, and the success rate of the installation of the steel structure outdoor stair is increased;

2. through the arrangement of the clamping columns and the clamping grooves, on one hand, the clamping columns are used for supporting the through door plate and the steering plate, so that the convenience of welding and fixing the assembly body and the supporting beam in the later period is improved, on the other hand, the through door plate and the steering plate are limited through the clamping between the clamping columns and the clamping grooves, and the stability of installing the through door plate and the rotating plate is further improved;

3. through the arrangement of the hanging ring, a force application point is provided for the movement of the assembly body, so that the convenience of moving the assembly body is improved, and meanwhile, after the steering plate and the through door plate are installed, the hanging ring is detached for cyclic utilization, so that the utilization rate of the hanging ring is improved, and the purpose of energy conservation is realized;

4. through the step of preparing the stair to be installed on the ground, the stability of the steel structure outdoor stair in the installation position is guaranteed, the steel structure outdoor stair is aligned with the door frames of all layers of the high-rise building, and the installation error of the stair is reduced.

Drawings

FIG. 1 is a schematic structural view of a steel structure outdoor staircase in the background of the present application;

FIG. 2 is a schematic structural view of the modular assembly type steel structure outdoor staircase according to the embodiment of the present application;

FIG. 3 is a schematic view of the bottom module unit of the present embodiment mounted on the top of the base;

FIG. 4 is a schematic structural view of the bottom-most support frame mounted on the top of the base in the embodiment of the present application;

FIG. 5 is a schematic structural view of a first assembly in an embodiment of the present application;

FIG. 6 is a schematic structural view of a second assembly in an embodiment of the present application;

fig. 7 is a partially enlarged schematic view of a portion a in fig. 7 in an embodiment of the present application.

Description of reference numerals: 1. high-rise buildings; 11. a door frame; 2. a module unit; 21. a support frame; 211. a vertical rod; 212. a cross bar; 22. a first assembly; 221. a door opening plate; 2211. a connecting plate; 222. connecting a stair; 223. a deflector plate; 23. a second assembly; 3. a base; 4. mounting the component; 41. clamping the column; 411. positioning a rod; 42. a card slot; 421. positioning a groove; 5. a splicing component; 51. splicing blocks; 52. a splicing groove; 6. hoisting the assembly; 61. a hoisting ring; 62. a screw; 63. a solenoid; 7. a safety barrier; 71. connecting a sleeve; 8. a common staircase; 81. a support beam; 82. a through door platform; 83. a steering platform; 84. a stair section.

Detailed Description

The present application is described in further detail below with reference to figures 2-7.

The embodiment of the application discloses fork shaped steel structure outer wall stair is cut to modularization assembled. Referring to fig. 2, the vertical setting of fork shaped steel structure outer wall stair is cut to modularization assembled is in high-rise building 1 outside, steel construction outer wall stair includes a plurality of modular unit 2 and base 3 that quantity and 1 number of piles of high-rise building are the same, 3 levels of base set up between modular unit 2 and the ground of bottom, 3 bottoms of base and ground fixed connection, 3 tops of base and 2 fixed connection of modular unit of bottom, two adjacent modular unit 2 are along vertical direction fixed connection, and every modular unit 2 all with 1 fixed connection of high-rise building. When building modularization assembled and cutting fork shaped steel structure outer wall stair, fix a plurality of modular unit 2 from the bottom up in proper order, when fixing every modular unit 2, also fix between this modular unit 2 and high-rise building 1.

Referring to fig. 2, the high-rise building 1 in this embodiment is provided with four floors, door frames 11 are vertically arranged at the positions of the side walls of each floor in the high-rise building 1, which are close to the steel structure outdoor stairway, the door frames 11 are fixedly connected with the wall of the high-rise building 1, and the four door frames 11 are aligned in the vertical direction. Workers on each floor in the high-rise building 1 can enter the steel structure outdoor stairway through the door frame 11, and then change the height of the steel structure outdoor stairway upwards or downwards.

Referring to fig. 2 and 3, the module unit 2 includes a support frame 21, a first assembly body 22 and a second assembly body 23, the support frame 21 is vertically disposed, the bottom end of the support frame 21 of the bottommost module unit 2 is fixedly connected with the top end of the base 3, the top end of the support frame 21 is fixedly connected with the bottom end of the support frame 21 of the upper module unit 2, the first assembly body 22 and the second assembly body 23 are both vertically disposed in the support frame 21, the first assembly body 22 and the second assembly body 23 are both fixedly connected with the support frame 21, and the mounting assemblies 4 are disposed between the first assembly body 22 and the support frame 21 and between the second assembly body 23 and the support frame 21; the first assembly body 22 is arranged between the second assembly body 23 and the door frame 11, the second assembly body 23 is positioned on one side of the first assembly body 22 far away from the base 3, and the splicing assembly 5 is arranged between the second assembly body 23 and the first assembly body 22; in order to facilitate the hoisting of the second assembly body 23 and the first assembly body 22 by a crane, the hoisting assemblies 6 are connected to both the second assembly body 23 and the first assembly body 22.

When the module unit 2 at the bottommost end is installed, the base 3 is fixed at the required installation position on the ground, then the support frame 21 is moved to be close to the top end of the base 3, the bottom end of the support frame 21 and the top end of the base 3 are fixed, after the position of the support frame 21 is fixed, the first assembly body 22 is moved into the support frame 21 from the top end of the support frame 21 through the hoisting component 6, then the first assembly body 22 is installed at the required installation position of the first assembly body 22 in the support frame 21 through the installation component 4, the first assembly body 22 and the support frame 21 are fixed, then the second assembly body 23 is moved into the support frame 21 from the top end of the support frame 21 through the hoisting component 6, the second assembly body 23 is also installed at the required installation position of the second assembly body 23 in the support frame 21 through the installation component 4, meanwhile, the second assembly body 23 and the first assembly body 22 are spliced through the splicing component 5, so as to improve the stability of connection between the second assembly body 23 and the first assembly body 22, finally, the second assembly body 23 and the support frame 21 are fixed, and the module unit 2 at the bottommost end is installed.

Referring to fig. 4, support frame 21 includes montant 211 and horizontal pole 212, montant 211 is vertical to be provided with four, the montant 211 bottom of bottommost modular unit 2 is fixed through the mode of flange with 3 tops of base, the montant 211 top of bottommost modular unit 2 is fixed through the mode of flange with the montant 211 bottom of upper modular unit 2 equally, horizontal pole 212 sets up between two adjacent montants 211 along the length direction level of base 3, the quantity of horizontal pole 212 is established to four, per two a set of sharings is two sets of, two horizontal poles 212 of the same group are located same level, two sets of horizontal poles 212 are close to the top of first assembly body 22 and the top of second assembly body 23 respectively, and horizontal pole 212 both ends respectively with two montant 211 lateral walls fixed connection. The distance between two vertical rods 211 arranged along the length direction of the belt base 3 is fixed by the cross rod 212, so as to reduce the installation error of the first assembly body 22 and the second assembly body 23 along the length direction of the base 3.

Referring to fig. 2 and 5, first assembly body 22 includes logical door board 221, connect stair 222 and steering panel 223, logical door board 221 connects stair 222 slope setting, connect stair 222 top and keep away from door frame 11, connect the stair 222 top and be close to the lateral wall fixed connection of door frame 11 with steering panel 223, connect stair 222 bottom and lead to the lateral wall fixed connection that door board 221 is close to steering panel 223, lead to the equal horizontal setting of door board 221 and steering panel 223, lead to door board 221 top and door frame 11 bottom and be located the same horizontal plane, and lead to horizontal being provided with connecting plate 2211 between door board 221 and the door frame 11, connecting plate 2211 both ends respectively with lead to door board 221 and door frame 11 fixed connection.

After the first assembly body 22 is installed, the upper connecting plate 2211 is welded between the door through plate 221 and the doorsill, people who walk in stairs walk into the door frame 11 through the connecting plate 2211, gaps between the door through plate 221 and the door frame 11 are reduced by the connecting plate 2211, the people who walk in stairs can enter the door frame 11 more safely, and meanwhile, the stairs and high-rise buildings are fixedly connected by the connecting plate 2211.

Referring to fig. 2 and 6, the second assembly body 23 also includes a through door plate 221, a connecting stair 222 and a turning plate 223, referring to fig. 5, the connecting stair 222 of the second assembly body 23 and the connecting stair 222 of the first assembly body 22 are arranged in a scissor-fork manner, the bottom end of the connecting stair 222 of the second assembly body 23 is fixedly connected with the side wall of the turning plate 223 close to the door frame 11, the top end of the connecting stair 222 of the second assembly body 23 is fixedly connected with the side wall of the through door plate 221 close to the turning plate 223, the turning plate 223 of the second assembly body 23 and the turning plate 223 of the first assembly body 22 are located at the same height, the connection mode of the through door plate 221 of the second assembly body 23 and the upper door frame 11 is the same as the connection mode of the through door plate 221 of the first assembly body 22 and the lower door frame 11, and the through door plate 221 of the second assembly body 23 is aligned with the through door plate 221 of the first assembly body 22 in the vertical direction.

When a pedestrian in the stairs moves downwards in the module unit 2, the pedestrian firstly moves out of the doorsill of the floor where the pedestrian is located, steps on the top end of the through door plate 221 of the second assembly body 23, then walks to the top end of the steering plate 223 of the second assembly body 23 along the connecting stairs 222 of the second assembly body 23, then the pedestrian adjusts the direction, moves to the steering plate 223 of the first assembly body 22 from the steering plate 223 of the second assembly body 23, and then descends to the top end of the through door plate 221 of the first assembly body 22 along the connecting stairs 222 of the first assembly body 22, so that the pedestrian moves in the module unit 2.

The through door plate 221, the connecting stairs 222 and the steering plate 223 are connected into a whole in the first assembly body 22 and the second assembly body 23, so that the influence of errors caused by human factors on the installation of the connecting stairs 222 is reduced, and the success rate of the installation of the steel structure outdoor stairs is increased; meanwhile, the assembly period of a single module unit 2 is shortened, and the installation efficiency of the whole steel structure outer wall stair is improved.

Referring to fig. 3 and 5, installation component 4 sets up in leading to door plant 221 and deflector 223 bottom, refer to fig. 4 simultaneously, installation component 4 is including calorie post 41 and draw-in groove 42, calorie post 41 sets up between two horizontal poles 212 with the group along base 3's width direction level, calorie post 41 is provided with two, two calorie posts 41 correspond two sets of horizontal poles 212 respectively, card post 41 both ends respectively with two horizontal poles 212 fixed connection with the group, draw-in groove 42 is seted up to leading to door plant 221 and deflector 223 bottom equal level, draw-in groove 42 sets up along base 3's width direction equally, draw-in groove 42 both ends lateral wall runs through door plant 221 both sides wall and deflector 223 both sides wall respectively, draw-in groove 42 cooperates with calorie post 41 joint.

The two clamping columns 41 are fixedly arranged between the cross rods 212 of the two groups, on one hand, the two clamping columns 41 connect the two cross rods 212 of the same group, and fix the two adjacent vertical rods 211 along the width direction of the base 3, so that the four vertical rods 211 of the same module unit 2 are connected into a whole, and the whole movement of the support frame 21 is facilitated; on the other hand, the card post 41 position at both ends is erect respectively at the both ends to the both ends of removing first assembly body 22 and the both ends of second assembly body 23, the card post 41 that utilizes both ends supports first assembly body 22 and second assembly body 23, first assembly body 22 and second assembly body 23 drive draw-in groove 42 and the joint of card post 41 simultaneously, make 41 tops of card post and draw-in groove 42 diapire butt, thereby it is spacing at card post 41 position to first assembly body 22 and second assembly body 23, the installation of first assembly body 22 and second assembly body 23 has been stabilized more, the welded fastening in later stage has also been made things convenient for simultaneously.

For the position of first assembly body 22 of accurate location and second assembly body 23, refer to fig. 3 and fig. 4, card post 41 lateral wall department level is provided with locating lever 411, locating lever 411 is perpendicular with card post 41, the central point of locating lever 411 puts the embedding card post 41 in, the locating lever 411 top flushes with card post 41 top, the central point of locating lever 411 puts and blocks post 41 fixed connection, locating lever 411 parallel arrangement on same card post 41 has two, refer to fig. 5 and fig. 6, steering panel 223 and logical door board 221 bottom have all seted up constant head tank 421 along base 3's length direction level, constant head tank 421 perpendicular to draw-in groove 42, and the intermediate position and the draw-in groove 42 intercommunication of constant head tank 421, constant head tank 421 and the cooperation of locating lever 411 joint.

When removing first assembly body 22, lead to door board 221 and deflector 223 and be close to two card posts 41 respectively, and make two card posts 41 respectively with lead to the draw-in groove 42 joint of door board 221 bottom and deflector 223 bottom, drive the constant head tank 421 of leading to door board 221 bottom and deflector 223 bottom simultaneously and also with the locating lever 411 joint on two card posts 41, constant head tank 421 diapire and locating lever 411 top butt, first assembly body 22 just in time is located required mounted position this moment, need not carry out the translation again to first assembly body 22 along base 3's width direction and adjust, it is laborsaving to save trouble, repeat above-mentioned installation procedure when removing second assembly body 23 equally.

Referring to fig. 3 and 5, the split assembly 5 is disposed between two through door plates 221 and two steering plates 223 located on the same horizontal plane, and referring to fig. 2 and 6, the split assembly 5 includes a split block 51 and a split groove 52, the split block 51 is horizontally disposed at a position where the through door plate 221 and the steering plate 223 of the second assembly 23 are close to the side wall of the door frame 11, the side wall of the split block 51 close to the door frame 11 is fixedly connected with the side walls of the through door plate 221 and the steering plate 223 on the second assembly 23, the split block 51 and the through door plate 221 and the steering plate 223 of the second assembly 23 are vertically disposed in a full length direction, two split blocks 51 on the through door plate 221 and the steering plate 223 of the second assembly 23 are both provided, the cross section of the split block 51 is in an inverted trapezoid shape, the split groove 52 is horizontally disposed at a position where the first assembly 22 is far from the side wall of the door frame 11, the split groove 52 penetrates through the top ends and the bottom ends of the through door plates 221 and the steering plates 223 on the first assembly 22 in the vertical direction, the number of the split grooves 52 is the same as that of the split blocks 51 and the split groove 52.

After the first assembly body 22 is installed, the second assembly body 23 is moved to start installation, so that the steering plate 223 at the bottom end of the second assembly body 23 is gradually close to the steering plate 223 at the top end of the first assembly body 22, and meanwhile, the steering plate 223 at the bottom end of the second assembly body 23 drives the splicing block 51 to be inserted into the splicing groove 52 of the steering plate 223 at the top end of the first assembly body 22, so that splicing at the steering plate 223 between the first assembly body 22 and the second assembly body 23 is realized, and when the first assembly body 22 of the upper-layer modular unit 2 is continuously used, the clamping groove 42 of the through door plate 221 at the bottom end of the first assembly body 22 at the upper layer is spliced with the splicing block 51 of the through door plate 221 at the top end of the second assembly body 23, so that the adjacent modular units 2 are connected more tightly.

Referring to fig. 3 and 6, the lifting assembly 6 is arranged at the position of the through door plate 221 and the turning plate 223 far away from the side wall of the connecting stair 222, referring to fig. 7, the lifting assembly 6 comprises a lifting ring 61, a screw rod 62 and a screw tube 63, the screw tube 63 is horizontally arranged inside the side wall of the turning plate 223 and the through door plate 221 far away from the connecting stair 222 along the length direction of the base 3, the outer side wall of the screw tube 63 is fixedly connected with the turning plate 223 and the through door plate 221, the lifting ring 61 is horizontally arranged, the screw rod 62 is arranged between the lifting ring 61 and the screw tube 63, one end of the screw rod 62 is fixedly connected with one end of the lifting ring 61 close to the connecting stair 222, and the other end of the screw rod 62 is in threaded connection with the screw tube 63.

When the first assembly body 22 and the second assembly body 23 are hoisted, firstly, the screw rod 62 is rotated, one end of the screw pipe 63, which is far away from the hoisting ring 61, is in threaded connection with the screw pipe 63, then a lifting hook of a crane is hung on the hoisting ring 61, and then the crane is started to hoist the first assembly body 22 or the second assembly body 23; after the first assembly body 22 and the second assembly body 23 of the same module unit 2 are installed, the hanging ring 61 with the screw 62 is detached, and then the hanging ring 61 is installed in the upper module unit 2 for recycling.

Referring to fig. 3 and 6, safety barriers 7 are vertically fixed to outer side edges of the first assembly body 22 and the second assembly body 23, the safety barriers 7 enclose an area where pedestrians walk in a staircase, referring to fig. 2, the door through plate 221 of the first assembly body 22 is disconnected from the safety barriers 7 in the connection area of the door frame 11, a connection sleeve 71 is arranged between two door through plates 221 and two steering plates 223 on the same horizontal plane, the connection sleeve 71 is horizontally arranged, the connection sleeve 71 is sleeved on outer sides of the two safety barriers 7 at the splicing positions of the two door through plates 221 and the two steering plates 223, and two ends of the connection sleeve 71 are respectively in threaded connection with two ends, close to each other, of the two safety barriers 7. The pedestrian in the stair is protected through the safety barrier 7, and the connecting sleeve 71 is used for connecting and reinforcing the safety barriers 7 between different assembly bodies.

The implementation principle of the modular assembly type scissors shaped steel structure outer wall stair of the embodiment of the application is as follows: when installing steel construction outer wall stair, fix the position of base 3 earlier, then establish 3 tops of base with the support frame 21 mount of bottom module unit 2, assemble first assembly body 22 and second assembly body 23 in proper order again, until whole bottom module unit 2 installation finishes, repeat above-mentioned step to all the other upper module unit 2.

The embodiment of the application also discloses an assembly method of the modular assembly type scissors type steel structure outer wall stair. An assembly method of a modular assembly type shear-fork-shaped steel structure outer wall stair comprises the following steps:

s1, early preparation: cleaning broken stones on the ground of a place where a stair is to be installed, then, ramming the ground into a foundation, accurately measuring the position where the support frame 21 is required to be installed, and then, fixedly installing the base 3 at the measured position;

s2, fixing the support frame 21: the supporting frame 21 is accurately hoisted to the top end of the base 3 through a crane, and then the bottom ends of four vertical rods 211 of the supporting frame 21 are all connected with the top end of the base 3 through flanges;

s3, mounting the first assembly 22: firstly, installing lifting rings 61 at two ends of a first assembly body 22, moving the lifting rings 61 to be close to the position of a solenoid 63 of the first assembly body 22, then rotating the lifting rings 61, enabling the lifting rings 61 to drive one end of a screw 62 far away from the lifting rings 61 to be in threaded connection with the solenoid 63, after the other lifting rings 61 of the first assembly body 22 are installed, hooking lifting hooks of a crane with the lifting rings 61, then starting the crane to lift the first assembly body 22 and drive the first assembly body 22 to move into a support frame 21 from the top end of the support frame 21, enabling the first assembly body 22 to drive a clamping groove 42 to be clamped with a clamping column 41, and simultaneously enabling a positioning groove 421 to be clamped with a positioning rod 411, at the moment, clamping the first assembly body 22 in the support frame 21, simultaneously enabling the first assembly body 22 to drive a safety guardrail 7 to be synchronously installed in the support frame 21, then welding the first assembly body 22 and the support frame 21, after the welding is completed, erecting a connecting plate 2211 between a through door plate 221 and a threshold at the bottom end of the first assembly body 22, welding two ends of the connecting plate 2211 are welded, and then the hooking state between the lifting rings 61 and the lifting hooks is released;

s4, mounting the second assembly 23: installing a lifting ring 61 on the second assembly body 23, after the lifting ring 61 is installed, hanging a lifting hook of a crane with the lifting ring 61, then starting the crane to lift the second assembly body 23, moving the second assembly body 23 to a required installation position of the second assembly body 23 in the support frame 21, enabling the second assembly body 23 to drive the clamping groove 42 to be clamped with the clamping column 41, simultaneously enabling the positioning groove 421 to be clamped with the positioning rod 411, enabling the second assembly body 23 to drive the splicing block 51 to be inserted into the splicing groove 52 of the first assembly body 22, then welding the second assembly body 23 and the support frame 21, and after welding is completed, rotating the connecting sleeve 71 to enable two ends of the connecting sleeve 71 to be respectively in threaded connection with the two safety guardrails 7 at the same height;

s5, installing the upper module unit 2: the supporting frame 21 in the upper module unit 2 is hung to the top end of the installed supporting frame 21, the bottom end of the supporting frame 21 in the upper module unit 2 is connected with the top end of the installed supporting frame 21 in a flange mode, then the first assembly body 22 and the second assembly body 23 are sequentially installed by repeating the steps, the upper module unit 2 is installed completely, and then the rest module units 2 are installed sequentially according to the number of layers of the needed module units 2 until the whole steel structure outdoor stair is completely installed.

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

Claims

1. The utility model provides a fork shaped steel structure outer wall stair is cut to modularization assembled, sets up in high-rise building (1) outside, its characterized in that: the steel structure exterior wall stair comprises a plurality of module units (2) and a base (3), the base (3) is horizontally arranged between the bottommost module unit (2) and the ground, two adjacent module units (2) are fixedly connected, each module unit (2) comprises a support frame (21), a first assembly body (22) and a second assembly body (23), the support frames (21) are fixedly connected with the first assembly body (22) and the second assembly body (23), the first assembly body (22) and the second assembly body (23) respectively comprise a door through plate (221), a connecting stair (222) and a steering plate (223), the top end of the connecting stair (222) of the first assembly body (22) is fixedly connected with the steering plate (223), the bottom end of the connecting stair (222) of the first assembly body (22) is fixedly connected with the door through plate (221), the bottom end of the connecting stair (222) of the second assembly body (23) is fixedly connected with the steering plate (223), the top end of the connecting stair (222) of the second assembly body (23) is fixedly connected with the door through plate (221), and the same steering plate (223) of the second assembly body (23) is positioned on the same plane; the supporting frame (21) comprises vertical rods (211) and cross rods (212), the number of the vertical rods (211) is four, the bottom ends of the vertical rods (211) of the bottommost module unit (2) are fixed to the top end of the base (3) in a flange mode, the top ends of the vertical rods (211) of the bottommost module unit (2) and the bottom ends of the vertical rods (211) of the upper module unit (2) are fixed in a flange mode, the cross rods (212) are horizontally arranged between every two adjacent vertical rods (211) along the length direction of the base (3), the number of the cross rods (212) is four, every two cross rods are divided into two groups, the two cross rods (212) in the same group are located at the same horizontal height, the two groups of the cross rods (212) are close to the top end of the first assembly body (22) and the top end of the second assembly body (23) respectively, and the two ends of the cross rods (212) are fixedly connected with the side walls of the two vertical rods (211) respectively; clamping columns (41) are arranged between the through door plate (221) and the support frame (21) and between the steering plate (223) and the support frame (21), the clamping columns (41) are fixedly connected with the support frame (21), clamping grooves (42) are formed in the through door plate (221) and the steering plate (223), and the clamping grooves (42) are in clamping fit with the clamping columns (41); the through door plate (221) and the steering plate (223) are both provided with positioning grooves (421), the positioning grooves (421) are communicated with the clamping groove (42), the clamping column (41) is fixedly connected with a positioning rod (411), an included angle is formed between the positioning rod (411) and the clamping column (41), and the positioning rod (411) is in clamping fit with the positioning grooves (421).

2. The modular assembly type shear-fork steel structure exterior wall stair of claim 1, wherein: be provided with amalgamation subassembly (5) between deflector plate (223) of the first assembly body (22) and deflector plate (223) of the second assembly body (23), amalgamation subassembly (5) are including amalgamation piece (51) and amalgamation groove (52), amalgamation piece (51) and deflector plate (223) fixed connection of the second assembly body (23), on steering plate (223) of the first assembly body (22) were seted up in amalgamation groove (52), amalgamation groove (52) are the dovetail, amalgamation groove (52) and amalgamation piece (51) cooperation of pegging graft.

3. The modular assembly type outer wall stair with the scissor-type steel structure according to claim 1, wherein: the steering plate (223) and the through door plate (221) are both connected with a lifting ring (61), and the lifting ring (61) is detachably and fixedly connected with the steering plate (223) and the through door plate (221).

4. The modular assembly type outer wall stair with the scissor-type steel structure according to claim 3, wherein the modular assembly type outer wall stair is characterized in that: the steering plate (223) and the through door plate (221) are fixedly connected with a solenoid (63), a screw rod (62) is arranged between the solenoid (63) and the lifting ring (61), one end of the screw rod (62) is fixedly connected with the lifting ring (61), and the other end of the screw rod is in threaded connection with the inner wall of the solenoid (63).

5. The modular assembly type shear-fork steel structure exterior wall stair of claim 1, wherein: safety guardrails (7) are fixedly connected to the edges of the first assembly body (22) and the second assembly body (23).

6. The modular assembly type shear-fork steel structure outer wall stair of claim 4, wherein: the steering plate (223) and the through door plate (221) are provided with connecting sleeves (71) between the two safety guardrails (7) of different assemblies, the connecting sleeves (71) are sleeved on the outer sides of the two safety guardrails (7), and two ends of each connecting sleeve (71) are respectively in threaded connection with the two safety guardrails (7).

7. The assembly method of the modular assembly type shear-fork steel structure outer wall stair of any one of claims 1 to 6, wherein the assembly method comprises the following steps: the method comprises the following steps:

s1, early preparation: cleaning broken stones on the ground of the place where the stair is to be installed, drilling a foundation plane, and accurately measuring the position where the support frame (21) needs to be installed;

s2, fixing a support frame (21): accurately hoisting the support frame (21) at a position required to be installed on the ground, and fixing the bottom end of the support frame (21) with the ground;

s3, mounting a first assembly (22): the position of a screw tube (63) of a movable lifting ring (61) close to a first assembly body (22) is moved, then the lifting ring (61) is rotated, the lifting ring (61) drives one end, away from the lifting ring (61), of a screw rod (62) to be in threaded connection with the screw tube (63), after other lifting rings (61) of the first assembly body (22) are installed, the first assembly body (22) is lifted through the lifting ring (61), the first assembly body (22) moves into a support frame (21), the first assembly body (22) drives a clamping groove (42) to be clamped with a clamping column (41), meanwhile, a positioning groove (421) is clamped with a positioning rod (411), at the moment, the first assembly body (22) is clamped in the support frame (21), and then the first assembly body (22) and the support frame (21) are welded;

s4, mounting a second assembly (23): installing a hanging ring (61) on the second assembly body (23), after the hanging ring (61) is installed, hoisting the second assembly body (23) through the hanging ring (61), moving the second assembly body (23) to a required installation position of the second assembly body (23) in the support frame (21), clamping the clamping groove (42) and the clamping column (41) through the second assembly body (23), clamping the positioning groove (421) and the positioning rod (411) at the same time, and then welding the second assembly body (23) and the support frame (21);

s5, mounting an upper module unit (2): the method comprises the following steps of hoisting a support frame (21) in an upper module unit (2) to the top end of the installed support frame (21), fixedly connecting the two support frames (21), then repeating the steps to sequentially install a first assembly body (22) and a second assembly body (23), finishing the installation of the upper module unit (2), and then sequentially installing the rest module units (2) according to the number of layers of the required module units (2).