CN211850495U - Assembled stair railing - Google Patents
Assembled stair railing Download PDFInfo
- Publication number
- CN211850495U CN211850495U CN202020306656.7U CN202020306656U CN211850495U CN 211850495 U CN211850495 U CN 211850495U CN 202020306656 U CN202020306656 U CN 202020306656U CN 211850495 U CN211850495 U CN 211850495U
- Authority
- CN
- China
- Prior art keywords
- upright post
- stair
- layer
- top layer
- standard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Steps, Ramps, And Handrails (AREA)
Abstract
The utility model relates to an assembled stair railing, belonging to the technical field of civil engineering, which is characterized in that the shape design of a standard layer prefabricated railing panel saves the waste of raw materials at the overlapping part of the stair railing panel; compared with the traditional stair railing method, the net width of the stair is increased, and the stair is more spacious, safe and convenient to pass; two connecting pieces are preset in each stair section, and the horizontal distance between the preset point of each connecting piece and the outer edge of the closer tread of the end part of the stair section is equal to the sum of the tread widths of the stair sections
The maximum absolute values of positive and negative bending moments of the handrail under the action of specified horizontal thrust are the same, so that the performance of the material is sufficientThe utilization is beneficial to saving materials; the tie point on intermediate level stair railing and the stand is in between two bolted connection points of stand and stair side, and the stand is in the stretch bending state under the horizontal thrust effect, and material saving and safety, and the district section that does not have stair railing to connect adopts the mode of pegging graft to connect, and easy to assemble has improved efficiency.
Description
Technical Field
The utility model belongs to the technical field of civil engineering, relate to the assembly type structure, especially relate to an assembly type stair railing.
Background
The stair railing of the house building is constructed and installed more on site at present, and the quality, the efficiency and the cost are unsatisfactory. Although some assembled stair railing technical schemes exist, most of them have the problems of insufficient standardization, large occupied space, material waste, low preparation and installation efficiency, high construction cost and the like.
The invention patent application specification CN201610262615.0 discloses an inclination-angle-adjustable assembled stair, which comprises two ladder beams, a stay bar, a plurality of pedals, rotating shafts, supports, connecting rods, connecting pieces, a rotating handle, a brake disc, railings and handrails, wherein the supports are symmetrically fixed on the two ladder beams, and the two rotating shafts are fixed at two ends of one pedal and are respectively arranged on the supports to form steps. The connecting rod and the steps and the connection between the handrail and the handrail are of hinged structures, so that the stair steps and the handrail are of variable-angle structures and can achieve a linkage effect, the inclination angle of the stair can be adjusted only by rotating the rotating handle connected to the rotating shaft, and the stair can meet the safe use function through the fixing of the braking piece; however, the technical scheme of the invention has the advantages of excessively complex preparation, construction and installation, low standardization degree and higher construction cost, and particularly has potential safety hazards due to excessively large space between the railings.
The utility model discloses a regularization stair railing, which is characterized in that the regularization stair railing comprises four supporting vertical rods, a hand rail and at least one protective rail, wherein the supporting vertical rods are arranged on the bottom layer of a staircase and are respectively positioned at four corners of a staircase gap, the hand rail is arranged in parallel with a staircase surface, and the protective rail is positioned below the hand rail and is arranged in parallel with the hand rail; the handrail and the protective handrail are both composed of a plurality of sections of circular steel pipes, the end parts of adjacent circular steel pipes are connected through elbow pipes, and two ends of each section of circular steel pipe are respectively fixed with the corresponding adjacent supporting vertical rods through rotary cross fasteners; but this utility model's standardization level is low, the material quantity is too much, especially the too big and connected mode of interval of railing has not detailed potential safety hazard.
Aiming at a plurality of problems of the stair railing, a new technical scheme is urgently needed to be provided.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the assembled stair railing is high in standardization degree of preparation and installation, good in safety performance, sufficient in material utilization, fast and convenient to install and low in construction cost.
The utility model provides an assembled stair railing, characterized by: the connecting piece is preset on the side face of one side of a stairwell on each stair section and is a connecting bolt or a pre-embedded nut, two connecting pieces are preset on each stair section (1), and the horizontal distance between the preset point of each connecting piece (2) and the outer edge of the end part of the stair section close to the tread is the sum of the tread widths of the stair sections (1)
The upright post fixing piece is in a hollow tubular shape and is provided with a bolt mounting hole;
the fixing piece is a fixing nut or a bolt and is connected with the connecting piece to fix the upright post and the upright post fixing piece;
the standard layer first upright post, the standard layer second upright post, the top layer first upright post and the top layer second upright post are all tubular and are arranged into more than one, and each of the standard layer first upright post, the standard layer second upright post, the top layer first upright post and the top layer second upright post is provided with a bolt mounting hole;
the intersections of the end parts of the standard layer first upright column, the standard layer second upright column, the top layer first upright column and the top layer second upright column and the stair sections are fixedly connected with connecting pieces preset on the stair sections through fixing pieces penetrating through upright column fixing pieces and bolt mounting holes at the respective end parts, and are fixedly arranged on the stair sections;
the middle parts of the standard layer first upright post, the standard layer second upright post, the top layer first upright post and the top layer second upright post are connected with the stair sections in a fastening way through fixing pieces passing through bolt mounting holes in the middle parts of the standard layer first upright post, the standard layer second upright post, the top layer first upright post and the top layer second upright post, and are fixedly arranged on the stair sections;
the standard layer prefabricated sideboard comprises a frame and a partition, the partition is trapezoidal, the frame comprises a trapezoidal frame and a top handrail extending along the top edge of the trapezoidal frame, and the standard layer prefabricated sideboard is fixedly arranged on the standard layer first stand column, the standard layer second stand column, the top layer first stand column and the top layer second stand column in a connecting mode through connecting bolts penetrating into bolt mounting holes;
the prefabricated breast board of top layer is parallelogram, penetrates the bolt mounting hole through connecting bolt and connects fixedly and set up on first stand of top layer and top layer second stand.
Through the above design scheme, the utility model discloses following beneficial effect can be brought: compared with the traditional stair railing panel, the prefabricated railing panel of the standard layer has the advantages that the shape design of the prefabricated railing panel of the standard layer saves the raw material waste of the overlapping part of the stair railing panel and reduces the comprehensive construction cost; compared with the traditional stair railing method, the net width of the stair is increased, and the stair is more spacious, safe and convenient to pass; two connecting pieces are preset in each stair section, and the horizontal distance between the preset point of each connecting piece and the outer edge of the closer tread of the end part of the stair section is equal to the sum of the tread widths of the stair sections
Railing on gaugeThe maximum absolute values of the positive bending moment and the negative bending moment are the same under the action of the fixed horizontal thrust, so that the performance of the material is fully utilized, and the construction cost is reduced; the tie point on intermediate level stair railing and the stand is in between two bolted connection points of stand and stair side, and the stair railing is in the stretch bending state under the horizontal thrust effect, and material saving and safety, and the district section that does not have the stair railing to connect adopts the mode of pegging graft to connect, and easy to assemble has improved efficiency. The utility model discloses standardization and industrialization degree are high, and the finished product is of high quality, efficient, with low costs, the field operation is few, use manpower sparingly, material-saving environmental protection.
Drawings
The invention is further described with reference to the following figures and detailed description:
fig. 1 is a front view of the pillar mounting of the present invention.
Fig. 2 is a schematic side view of the stand fixing member of the present invention.
Fig. 3 is a rear view of the pillar mounting of the present invention.
Fig. 4 is a schematic cross-sectional view of the pillar mounting of the present invention.
Fig. 5 is a schematic view of the first column of the standard layer of the present invention.
Fig. 6 is a schematic view of a second column of the standard layer of the present invention.
Fig. 7 is a schematic view of the first pillar on the top layer of the present invention.
Fig. 8 is a schematic view of the second pillar on the top layer of the present invention.
Fig. 9 is a schematic front view of the standard layer prefabricated breast board of the present invention.
Fig. 10 is a rear view of the prefabricated breast board of the standard layer of the present invention.
Fig. 11 is a schematic cross-sectional view of the standard layer prefabricated breast board of the present invention.
Fig. 12 is a front view of the stair tread of the present invention.
Fig. 13 is a schematic top view of the stair tread of the present invention.
Fig. 14 is a schematic front view of the installation of the first standard layer first column and the standard layer second column of the present invention.
Fig. 15 is a schematic front view of the installation of the first standard layer column and the second standard layer column of the present invention.
Fig. 16 is a schematic front view of the installation of the column according to the present invention.
Fig. 17 is a schematic front view of the bottom installation node of the first column bottom layer of the standard layer of the present invention.
Fig. 18 is a schematic front view of the bottom installation node of the second column bottom layer of the standard layer of the present invention.
Fig. 19 is a schematic front view of the connection node installed in the middle of the first column according to the present invention.
Fig. 20 is a schematic front view of the connection node installed in the middle of the second column according to the present invention.
Fig. 21 is a schematic top view of the mounting post for the completion of the staircase according to the present invention.
Fig. 22 is the utility model discloses the prefabricated breast board of first floor standard layer is accomplished to stair installation front view schematic diagram.
Fig. 23 is the utility model discloses the prefabricated breast board of stair completion installation is the front view schematic diagram.
Fig. 24 is a schematic top view of the stair finishing installation prefabricated breast board of the present invention.
Fig. 25 is the utility model discloses the prefabricated breast board of stair completion installation cross-sectional view.
In the figure, 1-stair sections, 2-connecting pieces, 3-upright post fixing pieces, 4-standard layer first upright posts, 5-standard layer second upright posts, 6-bolt mounting holes, 7-fixing pieces, 8-top layer first upright posts, 9-top layer second upright posts, 10-standard layer prefabricated fences, 11-top layer prefabricated fences, 12-stairwells, 101-frames and 102-barriers are arranged in the vertical direction.
Detailed Description
An assembled stair railing, as shown in fig. 1-25, comprises a connecting piece 2, a vertical column fixing piece 3, a first vertical column 4 of a standard layer, a second vertical column 5 of the standard layer, a fixing piece 7, a first vertical column 8 of a top layer, a second vertical column 9 of the top layer, a prefabricated railing panel 10 of the standard layer and a prefabricated railing panel 11 of the top layer, wherein the connecting piece 2 is preset on the side surface of one side of a stairwell 12 on a stairway section 1 and is a connecting bolt or a pre-embedded nut;
as shown in fig. 1 to 4, the pillar fixing member 3 is hollow and tubular, and is provided with a bolt mounting hole 6;
the fixing piece 7 is a fixing nut or a bolt and is arranged at the inner positions of the upright post fixing piece 3 and the upright post with the bolt mounting holes 6;
as shown in fig. 5 to 8, the standard layer first upright column 4, the standard layer second upright column 5, the top layer first upright column 8 and the top layer second upright column 9 are all tubular and are arranged in more than one tube shape, and each of the standard layer first upright column 4, the standard layer second upright column 5, the top layer first upright column 8 and the top layer second upright column 9 is provided with a bolt mounting hole 6;
the end parts of the standard layer first upright post 4, the standard layer second upright post 5, the top layer first upright post 8 and the top layer second upright post 9 are connected with the stair sections 1 through the fixing parts 7, penetrate through the upright post fixing parts 3 and the bolt mounting holes 6 at the respective end parts, are fixedly connected with the connecting parts 2 preset on the stair sections 1, and are fixedly arranged on the stair sections 1;
the middle parts of the standard layer first upright post 4, the standard layer second upright post 5, the top layer first upright post 8 and the top layer second upright post 9 are fixedly connected with a connecting piece 2 preset on the stair section 1 through a fixing piece 7 penetrating through a bolt mounting hole 6 at the middle part of each and fixedly arranged on the stair section 1;
as shown in fig. 9 to 13, the standard-layer prefabricated sideboard 10 comprises a frame 101 and a partition 102, the partition 102 is trapezoidal, the frame 101 comprises a trapezoidal frame and a top handrail extending along the top edge of the trapezoidal frame, and the standard-layer prefabricated sideboard 10 is fixedly connected to the standard-layer first upright post 4, the standard-layer second upright post 5, the top-layer first upright post 8 and the top-layer second upright post 9 by a connecting bolt passing through a bolt mounting hole 6;
the prefabricated breast board 11 of top layer is parallelogram, penetrates bolt mounting hole 6 through connecting bolt and connects fixedly and set up on first stand 8 of top layer and top layer second stand 9.
The preparation and installation process of the assembled stair railing of the utility model is completed by the following method as shown in figures 1 to 25,
step one, preparing a stair railing part
As shown in fig. 1 to 11, a pipe is used to prepare a column fixing member 3, bolt mounting holes 6 are formed at corresponding positions on a pipe wall at one end of the column fixing member 3, and the two bolt mounting holes 6 have different apertures;
preparing a standard layer first upright post 4, a standard layer second upright post 5, a top layer first upright post 8 and a top layer second upright post 9 by adopting a pipe, wherein the outer profile section size of each upright post is the same and is smaller than the section hollow size of the upright post fixing piece 3, and the upright post fixing piece 3 is matched in an insertion manner; each upright post is provided with a bolt mounting hole 6, and the diameters of two corresponding holes on the cross section are different;
preparing a standard layer prefabricated breast board 10 and a top layer prefabricated breast board 11, wherein the standard layer prefabricated breast board 10 comprises a frame 101 and a partition 102, the partition 102 is trapezoidal and is made of a plate or a breast net; the frame 101 comprises a trapezoid frame and a top handrail extending along the top edge of the trapezoid frame, and the frame 101 is made of a solid or hollow pipe; the top layer prefabricated breast board 11 is a parallelogram;
step two, presetting a connecting piece 2
As shown in fig. 12 and 13, a connecting piece 2 is preset on the side surface of one side of the stairwell 12 on each stair section 1, the connecting piece 2 adopts a connecting bolt or a pre-embedded nut, two connecting pieces 2 are preset on each stair section 1, and the horizontal distance between the preset point of the connecting piece 2 and the outer edge of the tread close to the end part of the stair section 1 is the sum of the tread widths of the stair sections 1
Step three, mounting the upright post
As shown in fig. 14 to 21, the mounting columns include a standard-layer first column 4, a standard-layer second column 5, a top-layer first column 8, and a top-layer second column 9;
the installation is started from the first standard layer,
according to the designed installation position, the standard layer first upright column 4 and the standard layer second upright column 5 are respectively and fixedly connected with the preset connecting pieces 2 at the upper end and the lower end of the bottom second stair section by adopting fixing pieces 7;
taking a stand column fixing piece 3, sleeving one side provided with a bolt mounting hole 6 at the bottom of a standard layer first stand column 4, enabling the bolt mounting hole 6 of the stand column fixing piece 3 to correspond to the bolt mounting hole 6 at the bottom of the standard layer first stand column 4, placing a fixing piece 7 into the bolt mounting hole 6 at the bottom of the stand column fixing piece 3 and the standard layer first stand column 4, and fixedly connecting the fixing piece with a preset connecting piece 2 at the lower end of a first stair section 1 at the bottom;
taking the upright post fixing piece 3, sleeving one side without the bolt mounting hole 6 at the bottom of the second upright post 5 of the standard layer, putting the fixing piece 7 into the bolt mounting hole 6 of the upright post fixing piece 3, and fixedly connecting with the preset connecting piece 2 at the upper end of the first stair section 1 at the bottom, wherein the upright post fixing piece 3 clamps and fixes the bottom of the second upright post 5 of the standard layer;
taking the upright post fixing piece 3, sleeving one side provided with the bolt mounting hole 6 on the top of the standard layer second upright post 5, placing the bolt mounting hole 6 of the upright post fixing piece 3 corresponding to the bolt mounting hole 6 on the top of the standard layer second upright post 5, placing the fixing piece 7 into the bolt mounting hole 6 on the tops of the upright post fixing piece 3 and the standard layer second upright post 5, and connecting but not fastening the fixing piece with the preset connecting piece 2 at the upper end of the first stair section 1 at the upper layer;
the standard layers above the first standard layer are arranged,
installing the first stand column 4 of the standard layer, taking the stand column fixing piece 3, sleeving the side with the bolt installation hole 6 upwards on the top of the first stand column 4 of the next standard layer, and keeping the top surfaces to be level; according to the designed installation position, the first upright post 4 of the standard floor is fixedly connected with the preset connecting piece 2 at the upper end of the second stair section of the standard floor by adopting a fixing piece 7; moving the upright post fixing piece 3 upwards, enabling the bolt mounting hole 6 of the upright post fixing piece to correspond to the bolt mounting hole 6 at the bottom of the first upright post 4 of the standard layer, placing the fixing piece 7 into the bolt mounting holes at the bottoms of the upright post fixing piece 3 and the first upright post 4 of the standard layer, and fastening and connecting the fixing piece with the preset connecting piece 2 at the lower end of the first stair section of the standard layer;
installing the second upright post 5 of the standard layer, inserting the lower end of the second upright post 5 of the standard layer into the upright post fixing piece 3 already placed at the top of the second upright post 5 of the next standard layer from top to bottom, and fastening the fixing piece 7 which is already placed in the upright post fixing piece 3 but is not fastened, so that the upper and lower second upright posts 5 of the standard layer are fastened and fixed at the joint; a fixing part 7 is adopted to fixedly connect the second upright post 5 of the standard floor with the preset connecting part 2 at the lower end of the second stair section of the standard floor; taking the upright post fixing piece 3, sleeving one side provided with the bolt mounting hole 6 on the top of the second upright post 5 of the standard layer, wherein the bolt mounting hole 6 of the upright post fixing piece 3 corresponds to the bolt mounting hole 6 on the top of the second upright post 5 of the standard layer, and placing the fixing piece 7 into the upright post fixing piece 3 and the bolt mounting hole 6 on the top of the second upright post 5 of the standard layer to be connected with but not fastened with the preset connecting piece 2 at the upper end of the first stair section of the upper layer;
repeating the installation process of each standard layer above the first standard layer until all the first upright columns 4 and the second upright columns 5 of the standard layers are installed;
mounting the top layer first upright post 8, taking the upright post fixing piece 3, sleeving the side with the bolt mounting hole 6 upwards on the top of the lower adjacent standard layer first upright post 4, and keeping the top surfaces to be level; according to the designed installation position, the first upright post 8 on the top layer is fixedly connected with the preset connecting piece 2 at the upper end of the second stair section on the top layer by adopting a fixing piece 7; moving the upright post fixing piece 3 upwards, enabling a bolt mounting hole 6 of the upright post fixing piece 3 to correspond to a bolt mounting hole 6 at the bottom of a first upright post 8 at the top layer, placing a fixing piece 7 into the bolt mounting holes 6 at the bottoms of the upright post fixing piece 3 and the first upright post 4 at the top layer, and fastening and connecting the fixing piece with a preset connecting piece 2 at the lower end of a first stair section at the top layer;
mounting a top layer second upright post 9, inserting the lower end of the top layer second upright post 9 into an upright post fixing piece 3 at the top of a lower adjacent standard layer second upright post 5 from top to bottom, and fastening a fixing piece 7 which is already placed in the upright post fixing piece 3 but is not fastened, so that the connection part of the lower end of the top layer second upright post and the upper end of the lower adjacent standard layer second upright post is fastened and fixed; a fixing part 7 is adopted to fixedly connect the second upright post 8 at the top layer with the preset connecting part 2 at the lower end of the second stair section at the top layer;
at this point, the installation of the upright post is completed;
step four, mounting the breast board
As shown in fig. 22 to 25, the standard layer prefabricated balustrade 10 and the top layer prefabricated balustrade 11 are arranged at the inner side of the stair section 1, and the intersection of each upright column and the frames of the standard layer prefabricated balustrade 10 and the top layer prefabricated balustrade 11 are fixed by bolts;
to this end, the preparation installation of an assembled stair railing is accomplished.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The utility model provides an assembled stair railing, characterized by: the connecting piece (2) is preset on the side face of one side of an upper stairwell (12) of a stair section (1) and is a connecting bolt or a pre-embedded nut, two connecting pieces (2) are preset on each stair section (1), and the preset point of each connecting piece (2) and the horizontal distance of the end part of each stair section (1) close to the outer edge of a tread are the sum of tread widths of the stair sections (1)
The upright post fixing piece (3) is in a hollow tubular shape and is provided with a bolt mounting hole (6);
the fixing piece (7) is a fixing nut or bolt and is connected with the connecting piece (2) to fix the upright post and the upright post fixing piece (3);
the standard layer first upright post (4), the standard layer second upright post (5), the top layer first upright post (8) and the top layer second upright post (9) are all tubular and are arranged into more than one, and bolt mounting holes (6) are formed in each standard layer first upright post (4), each standard layer second upright post (5), each top layer first upright post (8) and each top layer second upright post (9);
the intersections of the end parts of the standard layer first upright post (4), the standard layer second upright post (5), the top layer first upright post (8) and the top layer second upright post (9) and the stair sections (1) are fixedly connected with connecting pieces (2) preset on the stair sections (1) through fixing pieces (7) which penetrate through upright post fixing pieces (3) and bolt mounting holes (6) at the respective end parts, and the connecting pieces are fixedly arranged on the stair sections (1);
the middle parts of the standard layer first upright post (4), the standard layer second upright post (5), the top layer first upright post (8) and the top layer second upright post (9) are connected with the stair sections (1) in a fastening way through bolt mounting holes (6) in the middle parts of the standard layer first upright post, the standard layer second upright post, the top layer first upright post (8) and the top layer second upright post (9) respectively through fixing pieces (7), and the fixing pieces are fixedly arranged on the stair sections (1);
the standard layer prefabricated sideboard (10) comprises a frame (101) and a partition (102), the partition (102) is trapezoidal, the frame (101) comprises a trapezoidal frame and a top handrail extending along the top edge of the trapezoidal frame, and the standard layer prefabricated sideboard (10) is fixedly arranged on the standard layer first stand column (4), the standard layer second stand column (5), the top layer first stand column (8) and the top layer second stand column (9) through connecting bolts penetrating into bolt mounting holes (6);
the prefabricated breast board of top layer (11) are parallelogram, penetrate bolt mounting hole (6) through connecting bolt and connect fixedly and set up on first stand of top layer (8) and top layer second stand (9).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922127733 | 2019-12-03 | ||
| CN2019221277332 | 2019-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211850495U true CN211850495U (en) | 2020-11-03 |
Family
ID=73131983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020306656.7U Active CN211850495U (en) | 2019-12-03 | 2020-03-13 | Assembled stair railing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211850495U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219025A (en) * | 2019-12-03 | 2020-06-02 | 孟凡林 | Assembled stair railing and manufacturing and mounting method thereof |
-
2020
- 2020-03-13 CN CN202020306656.7U patent/CN211850495U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219025A (en) * | 2019-12-03 | 2020-06-02 | 孟凡林 | Assembled stair railing and manufacturing and mounting method thereof |
| CN111219025B (en) * | 2019-12-03 | 2024-07-26 | 吉林省中鼎建筑设计有限公司 | Assembled stair railing and preparation and installation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1140686C (en) | Modular stairway system, method for erecting stairway and kit therefor | |
| CN107366356A (en) | Assembled architecture agent structure | |
| CN110886227B (en) | Main tower cast-in-place lower cross beam support system and construction method | |
| CN211850495U (en) | Assembled stair railing | |
| CN109184061A (en) | It cornices outside space structure ceiling system structure and construction method | |
| CN209976088U (en) | Assembled protection canopy | |
| CN219569403U (en) | Box-shaped rotary stair with large-span hyperbola steel structure | |
| CN211499697U (en) | Spiral stair | |
| CN111219025B (en) | Assembled stair railing and preparation and installation method thereof | |
| CN110778089A (en) | Spiral stair and construction method | |
| CN105317179A (en) | Cantilever type unsupported glass stair installation structure and installation method | |
| CN216042482U (en) | Concatenation formula operation platform | |
| CN214834781U (en) | Supporting vertical pipe structure in multi-stair-section stair formwork supporting system | |
| JP3421298B2 (en) | Internal stairs for buildings and method of construction | |
| CN210263847U (en) | Stride and establish portable construction platform on subway U type groove | |
| CN202882352U (en) | Multi-layer steel structure connection corridor shaped like Chinese character 'gan' of old commercial and residential building adding elevator | |
| CN207044363U (en) | A kind of new precast beam protection and operating platform | |
| CN211974121U (en) | Assembled rotary ladder | |
| CN205224460U (en) | Formula of hanging oneself from a beam exempts from to support glass stair mounting structure | |
| CN218375553U (en) | Water-stopping turnover type construction stair | |
| CN211523835U (en) | Prefabricated staircase and building structure | |
| CN221481240U (en) | Prefabricated stair steelframe platform | |
| CN215484911U (en) | Temporary movable stair for assembly type building operation layer | |
| CN221441939U (en) | Assembled stair | |
| CN221567819U (en) | Quick construction device for horizontal structure in super high-rise core tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |