CN210316282U - Prefabricated staircase convenient to installation - Google Patents
Prefabricated staircase convenient to installation Download PDFInfo
- Publication number
- CN210316282U CN210316282U CN201921059256.4U CN201921059256U CN210316282U CN 210316282 U CN210316282 U CN 210316282U CN 201921059256 U CN201921059256 U CN 201921059256U CN 210316282 U CN210316282 U CN 210316282U
- Authority
- CN
- China
- Prior art keywords
- stair
- blocks
- block
- rod
- cuboid
- 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 a prefabricated staircase convenient to installation, it includes upper stair platform, stair main body, lower floor stair platform, the stair main body is connected between upper stair platform and lower floor stair platform, the stair main body includes a plurality of cuboid blocks, the both sides face of cuboid block width direction is equipped with shape-fitted first T type groove and first T type piece, adjacent cuboid block is connected through the joint of first T type groove and first T type piece, and the difference in height of adjacent cuboid block is the same after the joint; and a second T-shaped block is arranged on the lower-layer stair platform and is matched and connected with a first T-shaped groove at the bottom end of the stair main body, a second T-shaped groove is arranged on the upper-layer stair platform, and the first T-shaped block at the top end of the stair main body is matched and connected with the second T-shaped groove. The utility model discloses have and make up into complete stair main part with independent rectangular block through the joint, can accomplish the effect of great prefabricated staircase equipment in narrow and small stairwell.
Description
Technical Field
The utility model relates to a construction technical field, in particular to prefabricated staircase convenient to installation.
Background
The stair is one of very important structural members in a residential building structure and mainly comprises stair boards and stair platforms, wherein the stair boards are divided into a cast-in-place type stair board and a prefabricated stair board, the cast-in-place stair boards can fully exert the plasticity of reinforced concrete, the structural integrity is good, the application is wide, but the stair has the defects of difficult formwork support, high consumption, great self weight, long construction period and the like. The prefabricated stair boards are manufactured firstly and then transported to a construction site for installation, so that the prefabricated stair boards have the advantages of simplicity in construction, low cost, short construction period and the like. However, the prefabricated step floors are heavy and have no special lifting points, which makes the transportation, lifting and installation of the prefabricated step floors difficult.
The utility model discloses a utility model patent that publication number is CN204299071U provides a prefabricated stair tread, with the polylith volume less, the prefabricated stair tread that weight is lighter transversely overlap joint side by side between cast-in-place upper strata ladder beam and cast-in-place lower floor's ladder beam to set up a plurality of horizontal through-holes that are used for subtracting heavy in the stair main part of prefabricated stair tread, alleviate the quality of stair main part.
But above-mentioned prefabricated staircase has only alleviateed the quality of its body, reaches the effect of the transportation of being convenient for, but its length is fixed with high, needs great space to install, and nevertheless the staircase space is narrow and small in reality, is not convenient for install this kind of prefabricated stair tread.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a prefabricated staircase convenient to installation has the effect of being convenient for install prefabricated staircase in constrictive stairwell.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a prefabricated staircase convenient to install comprises an upper-layer staircase platform, a staircase main body and a lower-layer staircase platform, wherein the staircase main body is connected between the upper-layer staircase platform and the lower-layer staircase platform and comprises a plurality of cuboid blocks, the length direction of each cuboid block is consistent with the width direction of the staircase main body, the width direction of each cuboid block is consistent with the length direction of the staircase main body, one side surface of each cuboid block in the width direction is provided with a first T-shaped groove, the other side surface of each cuboid block is provided with a first T-shaped block, the first T-shaped grooves are matched with the first T-shaped blocks in shape, adjacent cuboid blocks are connected through the clamping connection of the first T-shaped grooves and the first T-shaped blocks, the first T-shaped grooves and the first T-shaped blocks on the same cuboid block have height difference, and the height difference; and a second T-shaped block is arranged on the lower-layer stair platform and is matched and connected with a first T-shaped groove at the bottom end of the stair main body, a second T-shaped groove is arranged on the upper-layer stair platform, and the first T-shaped block at the top end of the stair main body is matched and connected with the second T-shaped groove.
Through adopting above-mentioned technical scheme, between upper stair platform and lower floor's stair platform, make up into complete stair main part with a plurality of independent rectangular blocks through the joint, accomplish being connected of stair main part top and upper stair platform, being connected of stair main part bottom and lower floor's stair platform simultaneously, can accomplish the equipment of great prefabricated stair in narrow and small stairwell.
Preferably, the upper end face of each cuboid block is connected with a first steel bar, the side end face of each cuboid block is connected with a second steel bar, the first steel bar and the second steel bar are both partially embedded in each cuboid block, and the second steel bar is positioned above the lower cuboid block in the two adjacent cuboid blocks; even there is the L template between the adjacent cuboid piece, and first reinforcing bar and second reinforcing bar all pass the L template.
By adopting the technical scheme, all the cuboid blocks are connected into a whole by the plurality of L-shaped plates, so that the single cuboid block can be prevented from transversely moving in the horizontal direction.
Preferably, through holes are formed in the cuboid blocks to avoid the first T-shaped groove and the first T-shaped block, and the through holes in adjacent cuboid blocks are coaxially communicated; the same long rod is arranged in all the through holes in a penetrating mode, and the shape of the long rod is matched with that of the through holes.
Through adopting above-mentioned technical scheme, the stock can strengthen the structural strength of stair main part for the stair main part is more stable.
Preferably, the stock is inside cavity, is equipped with the third reinforcing bar on the axis of stock, a plurality of reinforcing plates of third reinforcing bar and stock inner wall fixed connection, and the plane at all reinforcing plates places all passes through the axis of stock.
Through adopting above-mentioned technical scheme, the structural strength of stock has been strengthened to reinforcing plate and third reinforcing bar to the structural strength of stair main part has been strengthened.
Preferably, the main body of the stair is stretched out at both ends of the long rod, the upper-layer stair platform and the lower-layer stair platform are both provided with through grooves for inserting the ends of the long rod, the through grooves are communicated with the side surfaces of the upper-layer stair platform and the lower-layer stair platform, and concrete layers are cast in situ in the through grooves.
Through adopting above-mentioned technical scheme, the stock that will stretch out the stair main part is inserted in leading to the inslot, pours the concrete at leading to the inslot after the installation of stair main part is accomplished, makes the stock fixed at leading to inslot position, can prevent stair main part roll-off, improves the fixed stability of stair main part.
Preferably, the end part of the cuboid block in the length direction is provided with a jack, a cross rod is inserted into the jack, the end part of the cross rod is connected with a connecting rod, and all the cross rods positioned on the same side of the stair main body are connected through the connecting rod.
Through adopting above-mentioned technical scheme, set up the quality that the jack can alleviate stair main part, the connecting rod is connected into whole with all horizontal poles to link into whole with all cuboid blocks, strengthened stair main part's wholeness.
Preferably, the connecting rod is fixedly connected with a plurality of vertical rods, and the tops of the vertical rods are fixedly connected with the handrails.
Through adopting above-mentioned technical scheme, the connecting rod has made things convenient for the installation of handrail, and the handrail has ensured the safety in utilization of stair.
Preferably, a telescopic rod is connected between adjacent cuboid blocks, a first groove is formed in the bottom surface of each cuboid block, a second groove is formed in the side surface of each cuboid block, and two ends of each telescopic rod are respectively inserted into the first groove and the second groove of each two adjacent cuboid blocks; the telescopic rod comprises an inner rod and a hollow outer rod, the inner rod is inserted into the outer rod, a screw is screwed on the outer rod, a pin hole is formed in the inner rod, and the screw is inserted into the pin hole.
Through adopting above-mentioned technical scheme, the connection stability of adjacent cuboid block is strengthened to the telescopic link, has improved the holistic structural strength of prefabricated staircase.
Preferably, the lower part of the stair main body is provided with a ceiling plate, the ceiling plate is connected with a telescopic rod through a screw, the telescopic rod is provided with a threaded hole, and the screw is in threaded connection with the threaded hole.
Through adopting above-mentioned technical scheme, the furred ceiling board shelters from the sharp edges and corners of stair main part lower surface, prevents that people and prefabricated stair lower surface from taking place to collide with.
To sum up, the utility model discloses a beneficial technological effect does:
1. a plurality of independent cuboid blocks are combined into a complete stair main body through clamping, and the assembly of a large prefabricated stair can be completed in a narrow stair well;
2. all the cuboid blocks are connected into a whole through a plurality of L-shaped plates, so that the single cuboid block can be prevented from transversely moving in the horizontal direction.
Drawings
FIG. 1 is a schematic view showing the overall structure of a prefabricated staircase for easy installation according to an embodiment;
FIG. 2 is a side view of a prefabricated staircase for easy installation according to one embodiment;
FIG. 3 is a schematic view of the cuboid block of FIG. 2;
FIG. 4 is a schematic view of a prefabricated staircase hidden ceiling panel for easy installation in an embodiment;
FIG. 5 is an enlarged view of portion A of FIG. 4;
FIG. 6 is an exploded view of the telescoping pole;
FIG. 7 is a schematic view of a prefabricated staircase hiding lower landing for easy installation according to one embodiment;
FIG. 8 is an enlarged view of portion B of FIG. 7;
fig. 9 is an enlarged view of the portion C in fig. 7.
In the figure, 1, an upper-floor landing; 1a, a second T-shaped groove; 2. a stair body; 21. a cuboid block; 21a, a first T-shaped groove; 21b, a first T-shaped block; 21c, a through hole; 21d, a jack; 21e, a first groove; 21f, a second groove; 3. a lower landing; 3a, a second T-shaped block; 4. a first reinforcing bar; 5. a second reinforcing bar; 6. an L-shaped plate; 7. a long rod; 8. a third reinforcing bar; 9. a reinforcing plate; 10. a through groove; 11. a cross bar; 12. a connecting rod; 13. a vertical rod; 14. a handrail; 15. a telescopic rod; 15a, a threaded hole; 151. an inner rod; 151a, pin holes; 152. an outer rod; 16. a screw; 17. a ceiling plate; 18. an upper floor slab; 19. and a lower floor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): fig. 1 is the utility model discloses a prefabricated staircase convenient to installation, as shown in fig. 1, prefabricated staircase is including the upper stair platform 1, stair main part 2 and the lower floor's stair platform 3 that connect gradually. The upper-layer stair platform 1 and the lower-layer stair platform 3 are fixedly connected with an upper-layer floor slab 18 and a lower-layer floor slab 19 through embedded steel bars respectively.
As shown in fig. 2 and 3, the stair body 2 is composed of a plurality of rectangular parallelepiped blocks 21 having the same size, the longitudinal direction of the rectangular parallelepiped blocks 21 being the width direction of the stair body 2, and the width direction of the rectangular parallelepiped blocks 21 being the length direction of the stair body 2. Each rectangular parallelepiped block 21 has an insertion hole 21d on its end face in the length direction, a cross bar 11 is inserted into the insertion hole 21d, all the cross bars 11 extend from the insertion holes 21d on the same side of the stair body 2, and the ends of the extending cross bars 11 are connected by a connecting rod 12. A plurality of vertical rods 13 are welded on the connecting rod 12, and handrails 14 are welded at the tops of the vertical rods 13. The 2 bottom fixings of stair main part have furred ceiling board 17, and furred ceiling board 17 is used for sheltering from the edges and corners of 2 lower surfaces of stair main part, prevents to collide with.
As shown in fig. 2 and 3, the rectangular parallelepiped blocks 21 are provided with first T-shaped blocks 21b and first T-shaped grooves 21a on both sides in the width direction thereof, the first T-shaped blocks 21b and the first T-shaped grooves 21a on the same rectangular parallelepiped block 21 are different in height, the first T-shaped blocks 21b and the first T-shaped grooves 21a on two adjacent rectangular parallelepiped blocks 21 are engaged with each other, and the same height difference exists between the adjacent rectangular parallelepiped blocks 21.
As shown in fig. 4, one telescopic rod 15 is connected between two adjacent rectangular parallelepiped blocks 21.
As shown in fig. 5 and 6, the telescopic rod 15 is composed of an inner rod 151 and an outer rod 152, the outer rod 152 is hollow, a pin hole 151a is formed in the side surface of the inner rod 151, the inner rod 151 is inserted into the outer rod 152, a screw 16 is screwed on the outer rod 152, and the screw 16 penetrates through the outer rod 152 and extends into the pin hole 151a of the inner rod 151, so that the inner rod 151 and the outer rod 152 are fixedly connected. Two adjacent cuboid blocks 21 connected by the telescopic rod 15 are respectively provided with a first groove 21e and a second groove 21f, the first groove 21e is positioned on the bottom surface of the cuboid block 21, the second groove 21f is positioned on the side surface of the cuboid block 21, the inner rod 151 is inserted in the first groove 21e, and the outer rod 152 is inserted in the second groove 21 f.
As shown in fig. 2 and 5, a threaded hole 15a is formed in a side wall of the telescopic rod 15, the ceiling plate 17 is fixedly connected with the telescopic rod 15 through a screw 16, and the screw 16 is screwed in the threaded hole 15 a.
As shown in fig. 2, a second T-shaped block 3a is integrally formed on the lower landing 3, the second T-shaped block 3a has the same shape as the first T-shaped block 21b, and the second T-shaped block 3a of the lower landing 3 is clamped in the first T-shaped groove 21a of the rectangular block 21 at the bottom of the stair body 2; a second T-shaped groove 1a is integrally formed in the upper-layer stair platform 1, the second T-shaped groove 1a is identical to the first T-shaped groove 21a in shape, and a T-shaped block on a cuboid block 21 at the top end of the stair body 2 is clamped in the second T-shaped groove 1a of the upper-layer stair platform 1. All be equipped with logical groove 10 on upper stair platform 1 and the lower floor's stair platform 3, logical groove 10 on the upper stair platform 1 communicates with each other with the side of upper stair platform 1, and logical groove 10 on the lower floor's stair platform 3 communicates with each other with the side of lower floor's stair platform 3.
As shown in fig. 2 and 7, the stair body 2 is provided with two through holes 21c along the longitudinal direction thereof, and the through holes 21c penetrate all the rectangular parallelepiped blocks 21. A hollow long rod 7 is arranged in each through hole 21c in a penetrating way, and two ends of the long rod 7 extend out of the through holes 21 c. The two ends of the long rod 7 extending out of the stair body 2 are respectively inserted into the through grooves 10 of the upper-layer stair platform 1 and the lower-layer stair platform 3. After the long rod 7 is connected with the through groove 10, the long rod 7 is fixed by casting concrete in the through groove 10.
As shown in fig. 8, a third steel bar 8 is arranged in the hollow long rod 7 in the inner part in a penetrating manner, the third steel bar 8 is positioned on the central axis of the long rod 7, a plurality of reinforcing plates 9 are welded and fixed between the third steel bar 8 and the inner wall of the long rod 7, and the plane where all the reinforcing plates 9 are positioned passes through the central axis of the long rod 7.
As shown in fig. 9, two adjacent rectangular parallelepiped blocks 21 are connected at both ends thereof with L-shaped plates 6, the first reinforcing steel bars 4 and the second reinforcing steel bars 5 are respectively penetrated at both ends of the L-shaped plates 6, the first reinforcing steel bars 4 and the second reinforcing steel bars 5 are both partially embedded in the rectangular parallelepiped blocks 21, the first reinforcing steel bars 4 are connected with the upper surfaces of the rectangular parallelepiped blocks 21, the second reinforcing steel bars 5 are connected with the side surfaces of the adjacent rectangular parallelepiped blocks 21, and the second reinforcing steel bars 5 are located above the lower rectangular parallelepiped blocks 21 of the adjacent two rectangular parallelepiped blocks 21.
The implementation principle of the embodiment is as follows: a plurality of cuboid blocks 21 with the same size are connected into the stair body 2 through the first T-shaped blocks 21b and the first T-shaped grooves 21a on the two sides of the cuboid blocks in a clamping mode. The long rod 7 is arranged in the stair main body 2 along the length direction of the stair main body in a penetrating mode, and the two ends of the long rod 7 are used for connecting the stair main body 2 with the upper-layer stair platform 1 and the lower-layer stair platform 3 respectively. A plurality of cross bars 11 are inserted at two sides of the stair main body 2, and then a connecting rod 12 is used for fixedly connecting all the cross bars 11, so that the integrity of the stair main body 2 is improved, and the handrail 14 is conveniently fixed on the connecting rod 12. The lower surface of the stair main body 2 is abutted against two adjacent cuboid blocks 21 by the telescopic rods 15, so that the structural strength of the stair main body 2 is improved.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The utility model provides a prefabricated staircase convenient to installation, includes upper stair platform (1), stair main part (2), lower floor's stair platform (3), and stair main part (2) are connected between upper stair platform (1) and lower floor's stair platform (3), its characterized in that: the stair body (2) comprises a plurality of rectangular parallelepiped blocks (21), the length direction of each rectangular parallelepiped block (21) is consistent with the width direction of the stair body (2), the width direction of each rectangular parallelepiped block (21) is consistent with the length direction of the stair body (2), one side surface of each rectangular parallelepiped block (21) in the width direction is provided with a first T-shaped groove (21 a), the other side surface of each rectangular parallelepiped block is provided with a first T-shaped block (21 b), the first T-shaped grooves (21 a) are matched with the first T-shaped blocks (21 b) in shape, adjacent rectangular parallelepiped blocks (21) are connected through clamping of the first T-shaped grooves (21 a) and the first T-shaped blocks (21 b), the first T-shaped grooves (21 a) and the first T-shaped blocks (21 b) on the same rectangular parallelepiped block (21) have height difference, and the height difference of the adjacent rectangular parallelepiped blocks (21) is the same; be equipped with second T type piece (3 a) on lower floor's landing (3), second T type piece (3 a) are connected with the cooperation of first T type groove (21 a) of stair main part (2) bottom, are equipped with second T type groove (1 a) on upper stair platform (1), and first T type piece (21 b) and the cooperation of second T type groove (1 a) on stair main part (2) top are connected.
2. The prefabricated staircase convenient to install of claim 1, wherein: the upper end face of each cuboid block (21) is connected with a first steel bar (4), the side end face of each cuboid block is connected with a second steel bar (5), the first steel bar (4) and the second steel bar (5) are partially pre-buried in the cuboid blocks (21), and the second steel bar (5) is positioned above the lower cuboid block (21) of the two adjacent cuboid blocks (21); even have L template (6) between adjacent cuboid piece (21), first reinforcing bar (4) and second reinforcing bar (5) all pass L template (6).
3. The prefabricated staircase convenient to install of claim 1, wherein: through holes (21 c) are formed in the rectangular block (21) and avoid the first T-shaped groove (21 a) and the first T-shaped block (21 b), and the through holes (21 c) on the adjacent rectangular blocks (21) are coaxially communicated; the same long rod (7) penetrates through all the through holes (21 c), and the shape of the long rod (7) is matched with that of the through holes (21 c).
4. Prefabricated staircase convenient to install according to claim 3, characterized in that: stock (7) inside cavity is equipped with third reinforcing bar (8) on the axis of stock (7), a plurality of reinforcing plates of third reinforcing bar (8) and stock (7) inner wall fixed connection (9), and the plane at all reinforcing plates (9) places all passes through the axis of stock (7).
5. Prefabricated staircase convenient to install according to claim 3, characterized in that: the two ends of the long rod (7) extend out of the stair body (2), the upper-layer stair platform (1) and the lower-layer stair platform (3) are respectively provided with a through groove (10) for inserting the end part of the long rod (7), the through groove (10) is communicated with the side surfaces of the upper-layer stair platform (1) and the lower-layer stair platform (3), and a cast-in-place concrete layer is arranged in the through groove (10).
6. The prefabricated staircase convenient to install of claim 1, wherein: the end part of the rectangular block (21) in the length direction is provided with an insertion hole (21 d), a cross rod (11) is inserted into the insertion hole (21 d), the end part of the cross rod (11) is connected with a connecting rod (12), and all the cross rods (11) positioned on the same side of the stair main body (2) are connected through the connecting rod (12).
7. Prefabricated staircase convenient to install according to claim 6, characterized in that: a plurality of vertical rods (13) are fixedly connected to the connecting rod (12), and the tops of the vertical rods (13) are fixedly connected with handrails (14).
8. The prefabricated staircase convenient to install of claim 1, wherein: the telescopic rods (15) are connected between the adjacent cuboid blocks (21), the bottom surfaces of the cuboid blocks (21) are provided with first grooves (21 e), the side surfaces of the cuboid blocks (21) are provided with second grooves (21 f), and two ends of each telescopic rod (15) are respectively inserted into the first grooves (21 e) and the second grooves (21 f) of the two adjacent cuboid blocks (21); the telescopic rod (15) comprises an inner rod (151) and a hollow outer rod (152), the inner rod (151) is inserted into the outer rod (152), the outer rod (152) is connected with a screw (16) in a threaded mode, the inner rod (151) is provided with a pin hole (151 a), and the screw (16) is inserted into the pin hole (151 a).
9. The prefabricated staircase that is easy to install of claim 8, wherein: the stair main part (2) is equipped with furred ceiling board (17) below, and furred ceiling board (17) are connected with telescopic link (15) through screw (16), are equipped with screw hole (15 a) on telescopic link (15), and screw (16) spiro union is in screw hole (15 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921059256.4U CN210316282U (en) | 2019-07-08 | 2019-07-08 | Prefabricated staircase convenient to installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921059256.4U CN210316282U (en) | 2019-07-08 | 2019-07-08 | Prefabricated staircase convenient to installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210316282U true CN210316282U (en) | 2020-04-14 |
Family
ID=70149594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921059256.4U Active CN210316282U (en) | 2019-07-08 | 2019-07-08 | Prefabricated staircase convenient to installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210316282U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081320A (en) * | 2020-08-27 | 2020-12-15 | 衡东县佳时鸿丰建材有限责任公司 | Adjustable wood stair and use method thereof |
-
2019
- 2019-07-08 CN CN201921059256.4U patent/CN210316282U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081320A (en) * | 2020-08-27 | 2020-12-15 | 衡东县佳时鸿丰建材有限责任公司 | Adjustable wood stair and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105178433A (en) | Precast concrete shear wall structure and construction method thereof | |
| CN112900692B (en) | Large-span special-shaped steel structure building, supporting device thereof and construction method | |
| CN102913002A (en) | Integrated steel structure movable room and mounting method thereof | |
| CN110805144B (en) | Full-assembly type high-rise/super high-rise concrete frame support structure system and construction method thereof | |
| CN210316282U (en) | Prefabricated staircase convenient to installation | |
| CN110629886B (en) | Construction method for combining cast-in-place cylinder structure with fabricated frame structure | |
| CN104790564A (en) | Assembly type concrete stairwell external wall structure and construction method thereof | |
| CN210918341U (en) | Assembled building temporary stair | |
| CN209837765U (en) | Reversal dismantling temporary support conversion device for reinforced concrete structure | |
| CN111456346A (en) | Novel beam type stair are assembled in prefabrication of board structure of marking time | |
| CN111042430A (en) | Four-dimensional tenon fourth of twelve earthly branches structure brick and exempt from to tear open type of pouring stand | |
| CN214461175U (en) | Large-span special-shaped steel structure building | |
| CN206783059U (en) | A kind of additional elevator hoistways of framework assembled | |
| CN213572930U (en) | Self-locking hinged elevator shaft construction platform device | |
| CN210086685U (en) | Prefabricated staircase and connection structure of prefabricated staircase and floor slab | |
| CN109441031B (en) | Structure Liang Yincang type overhanging type open rotary stair structure and construction method thereof | |
| CN104100000A (en) | Steel reinforced concrete frame four-corner barrel bi-directional large-span steel truss mixed structure | |
| CN210067418U (en) | Portable aluminum frame template | |
| CN106013421A (en) | Building method for steel-wood combined assembling type fiber concrete building | |
| CN111188501A (en) | Split-assembly block building stairwell and wallboard same-layer construction method thereof | |
| CN204531069U (en) | A kind of assembly concrete staircase external wall structure | |
| CN215368339U (en) | Prefabricated assembled stair | |
| CN214996286U (en) | Assembled shear wall structure elevator well | |
| CN211369648U (en) | Temporary transfer hoisting and moving stair supporting system for mounting prefabricated reinforced concrete stairs | |
| CN219196541U (en) | End hoisting plug-in type scissors stair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |