CN211172776U - Prefabricated reinforced concrete slab stair - Google Patents
Prefabricated reinforced concrete slab stair Download PDFInfo
- Publication number
- CN211172776U CN211172776U CN201921251801.XU CN201921251801U CN211172776U CN 211172776 U CN211172776 U CN 211172776U CN 201921251801 U CN201921251801 U CN 201921251801U CN 211172776 U CN211172776 U CN 211172776U
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- stair
- prefabricated
- reinforced concrete
- plate
- handrail
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Abstract
The utility model discloses a prefabricated reinforced concrete slab stair, including the stair body, the one end integrated into one piece of stair body has last flier, the other end integrated into one piece of stair body has lower flier, the fixed stair of being provided with is marked time on the stair body, the fixed manger plate edge that is provided with of stair are marked time the lines that drip has been seted up at the top that stair were marked time, the lines that drip is located one side on manger plate edge be provided with prefabricated stair antislip strip between the lines that drip, the manger plate is provided with the handrail mounting groove on following the centre of handrail mounting groove is provided with the handrail mounting hole, the stair handrail built-in fitting has been buried underground in the handrail mounting groove. The utility model has the advantages of avoid environmental pollution, improve the safety and stability after the stair body assembly, whole security when guaranteeing the stair body and use to avoid the stair body to take place to rock because the atress is uneven at the hoist and mount in-process.
Description
Technical Field
The utility model relates to an assembly type structure field especially relates to a prefabricated reinforced concrete slab stair.
Background
The stair is used as a component for vertical traffic between floors in a building, is widely applied to building and home decoration, and is closely related to our life.
Although the styles of the assembled stairway are more and more along with the development of the construction technology of the assembled building, the prior assembled stairway is not convenient for primary installation and positioning when being transported to the site for assembly, the stairway is easy to misplace during installation, the degree of contact between the stair and the installation frame reserved in the building is not high, the engagement degree between the assembled stairway and the reserved frame is not strong after assembly, and the connection is not firm enough, so that the safety performance of the assembled stairway is not high after assembly; moreover, the prefabricated building hoisting points are unreasonable in arrangement, the prefabricated building hoisting points are easy to shake during loading, unloading and hoisting, the prefabricated stairways are easy to damage due to collision with building frames or other obstacles, meanwhile, the embedded stair fence installation iron pieces are easy to damage the stairways due to secondary installation, the staircases and shear wall formwork supporting and pouring construction links are difficult, construction is complex, the requirement on the technical quality of workers is high, a plastering surface layer is needed for stepping of the cast-in-place stairways, and the manufacturing cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an avoid environmental pollution, reduce job site and construct secondary destruction, safety and stability strong, avoid water stain to the prefabricated reinforced concrete slab stair of wall flooding to the building.
In order to achieve the above purpose, the present invention adopts the following technical solution.
A prefabricated reinforced concrete slab stair comprises a stair body, wherein an upper step plate is integrally formed at one end of the stair body, a lower step plate is integrally formed at the other end of the stair body, wedge-shaped openings are formed in the end portions of the upper step plate and the lower step plate, hoisting holes are formed in the upper step plate and the lower step plate, hanging nails are buried in the hoisting holes, stair steps are fixedly arranged on the stair body and are arranged from top to bottom along the stair body, a water retaining edge is fixedly arranged at the edge of each stair step, a water dripping line is arranged at the top of each stair step and is located on one side of the water retaining edge, prefabricated stair anti-skid strips are arranged between the water dripping lines, a handrail mounting groove is formed in the water retaining edge, a handrail mounting hole is formed in the middle of the handrail mounting groove, and a stair handrail embedded part is buried in the handrail mounting groove, the upper step plate is provided with first steel bar dowel holes, the lower step plate is provided with second steel bar dowel holes, and first drainage holes are vertically formed in the stair steps of the upper step plate and the lower step plate at intervals.
Furthermore, the stair body is provided with a second hydrophobic hole perpendicular to the installation wall surface, and the second hydrophobic hole is perpendicular to and communicated with the first hydrophobic hole.
Furthermore, a stair step which is not provided with the handrail installation groove is arranged between the stair steps which are provided with the handrail installation grooves at intervals.
Furthermore, the upper step plate, the stair body, the stair steps and the lower step plate are prefabricated and formed into a whole at one time.
Furthermore, one-step prefabrication molding is carried out on the water retaining edge, the water dripping line and the prefabricated stair anti-slip strip.
Further, the stair railing embedded part comprises a fixing plate, embedded ribs are welded on the lower side face of the fixing plate, and positioning holes corresponding to the handrail mounting holes are formed in the middle of the fixing plate.
Furthermore, the number of the wedge-shaped openings is four, and the wedge-shaped openings are symmetrically arranged at the end parts of the upper step plate and the lower step plate respectively.
Further, the quantity of hole for hoist is four, and the symmetry sets up the first reinforcing bar inserted bar hole on last step board and the second reinforcing bar inserted bar hole on the step board down respectively and is close to one side of stair body.
The utility model has the advantages that:
(1) the utility model discloses an go up flier, stair body, stair mark time and the one shot prefabrication shaping of flier down is a whole, adopts and form at the mill prefabrication, and the manger plate is along, lines and the one shot prefabrication shaping of prefabricated stair antislip strip drip, has solved the problem that cast-in-place stair's formwork process is complicated, reduces the construction degree of difficulty simultaneously, effectively shortens the construction period, produces the pollution to the construction environment when avoiding the job site cast in situ concrete.
(2) The utility model discloses an install the location when going up the reinforcing bar jack of seting up on step board and the lower step board and being used for stair body job site equipment, tentatively fix when the wedge is used for stair body job site equipment, the stair body job site fast and stable assembly of being convenient for to effectively improve the safety and stability behind the assembly of stair body.
(3) The utility model discloses well stair railing built-in fitting adopts pours fixed form with stair body an organic whole, effectively guarantees the steadiness of stair railing built-in fitting, prevents to appear connecting unstable situation after the stair railing installation, effectively guarantees the whole security when stair body uses.
(4) The utility model discloses hang the loading and unloading of the stair body of being convenient for of nail in the hoist and mount hole, when loading and unloading stair body, only need to fix the lifting rope on hanging the nail, alright hoist the stair body through hoisting machinery, 4 hoisting points effectively guarantee to the stationarity of stair body hoisting process, effectively avoid the stair body to take place to rock because the atress is uneven at the hoisting process.
Drawings
Fig. 1 is an overall side view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is a top view of the stair railing embedded part of the present invention.
Fig. 5 is a front view of the stair railing embedded part of the present invention.
The drawings are marked with: the stair comprises a stair body 1, an upper step plate 2, a first steel bar inserting hole 201, a lower step plate 3, a second steel bar inserting hole 301, a stair handrail embedded part 4, a fixing plate 401, a pre-embedded bar 402, a positioning hole 403, a hoisting hole 5, a stair step 6, a water retaining edge 7, a handrail mounting groove 701, a handrail mounting hole 702, a water dripping line 8, a prefabricated stair anti-slip strip 9, a wedge-shaped opening 10, a first hydrophobic hole 11, a second hydrophobic hole 12 and a hanging nail 13.
Detailed Description
The technical solution and the advantages of the present invention will be more clear and clear by further describing the embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1-5, a prefabricated reinforced concrete slab stair comprises a stair body 1, wherein an upper step plate 2 is integrally formed at one end of the stair body 1, a lower step plate 3 is integrally formed at the other end of the stair body 1, wedge-shaped openings 10 are formed at the end portions of the upper step plate 2 and the lower step plate 3, hoisting holes 5 are formed in the upper step plate 2 and the lower step plate 3, hanging nails 13 are embedded in the hoisting holes 5, stair steps 6 are fixedly arranged on the stair body 1, the stair steps 6 are arranged from top to bottom along the stair body 1, a water retaining edge 7 is fixedly arranged at the edge of the stair steps 6, a water dropping line 8 is arranged at the top of the stair steps 6, the water dropping line 8 is positioned at one side of the water retaining edge 7, a prefabricated stair anti-skid strip 9 is arranged between the water dropping lines 8, a handrail mounting groove 701 is arranged on the water retaining edge 7, handrail mounting hole 702 is provided with in the centre of handrail mounting groove 701, bury stair railing built-in fitting 4 underground in handrail mounting groove 701, go up and seted up first reinforcing bar dowel hole 201 on the flier 2 set up second reinforcing bar dowel hole 301 on the flier 3 down, with go up the stair of flier 2 interval stair step 6 and with vertical division all is equipped with first hydrophobic hole 11 on the stair step 6 of the flier 3 interval stair step 6 of the flier down.
The stair body 1 is provided with a second hydrophobic hole 12 vertical to the installation wall surface, and the second hydrophobic hole 12 is vertical to and communicated with the first hydrophobic hole 11.
The stair steps 6 without the handrail installation grooves 701 are arranged between the stair steps 6 with the handrail installation grooves 701 at intervals.
Go up flier 2, stair body 1, stair step 6 and step 3 down and prefabricate the shaping as an organic whole.
The water retaining edge 7, the dripping line 8 and the prefabricated stair anti-slip strip 9 are prefabricated and formed at one time.
The stair handrail embedded part 4 comprises a fixing plate 401, embedded ribs 402 are welded on the lower side face of the fixing plate 401, and positioning holes 403 corresponding to handrail mounting holes 702 are formed in the middle of the fixing plate 401.
The number of the wedge-shaped openings 10 is four, and the wedge-shaped openings are respectively and symmetrically arranged at the end parts of the upper step plate 2 and the lower step plate 3.
The quantity of hole for hoist 5 is four, and the symmetry sets up the first reinforcing bar inserted bar hole 201 on last step board 2 and the second reinforcing bar inserted bar hole 301 on the step board 3 down and is close to one side of stair body respectively.
The upper step plate 2, the stair body 1, the stair steps 6 and the lower step plate 3 of the utility model are prefabricated and formed into a whole at one time, and are prefabricated and formed in a factory, the water retaining edge 7, the water dripping line 8 and the prefabricated stair anti-slip strip 9 are prefabricated and formed at one time, so that the problem of complex formwork supporting procedure of the cast-in-place stair is solved, the construction difficulty is reduced, the construction period is effectively shortened, and the pollution to the construction environment is avoided when the concrete is cast in situ at the construction site; the reinforcing steel bar jacks arranged on the upper step plate 2 and the lower step plate 3 are used for mounting and positioning when the stair body is assembled on a construction site, and the wedge-shaped opening 10 is used for preliminary fixing when the stair body is assembled on the construction site, so that the rapid and stable assembly of the stair body 1 on the construction site is facilitated, and the safety and stability of the assembled stair body 1 are effectively improved; the stair handrail embedded part 4 is integrally cast and fixed with the stair body 1, so that the stability of the stair handrail embedded part 4 is effectively ensured, the unstable connection condition after the stair handrail is installed is prevented, and the integral safety of the stair body 1 in use is effectively ensured; hang nail 13 in lifting hole 5 and be convenient for stair body 1 loading and unloading, when loading and unloading stair body 1, only need to fix the lifting rope on hanging nail 13, alright hoist stair body 1 through hoisting machinery, four hoisting points effectively guarantee the stationarity to stair body 1 hoisting process, effectively avoid stair body 1 to take place to rock because the atress is uneven at the hoisting process.
In summary, the preferred embodiments of the present invention are only described, but not intended to limit the scope of the present invention, and all modifications of the equivalent structure or equivalent flow made by the present invention or directly or indirectly applied to other technical fields are also included in the scope of the present invention.
Claims (8)
1. The prefabricated reinforced concrete slab stair comprises a stair body (1) and is characterized in that an upper step plate (2) is integrally formed at one end of the stair body (1), a lower step plate (3) is integrally formed at the other end of the stair body (1), wedge-shaped openings (10) are formed in the end portions of the upper step plate (2) and the lower step plate (3), hoisting holes (5) are formed in the upper step plate (2) and the lower step plate (3), hoisting nails (13) are embedded in the hoisting holes (5), stair steps (6) are fixedly arranged on the stair body (1), the stair steps (6) are arranged from top to bottom along the stair body (1), a water dripping edge (7) is fixedly arranged at the edge of the stair steps (6), a water dripping line (8) is formed at the top of the stair steps (6), and the water dripping line (8) is positioned on one side of the water dripping edge (7), be provided with prefabricated stair antislip strip (9) between drip line (8), be provided with handrail mounting groove (701) on manger plate edge (7) the centre of handrail mounting groove (701) is provided with handrail mounting hole (702), buried stair railing built-in fitting (4) underground in handrail mounting groove (701), first reinforcing bar inserted bar hole (201) has been seted up on last flier (2) second reinforcing bar jack (301) has been seted up on lower flier (3), with the stair of last flier (2) interval stair step (6) and with vertical the opening all is equipped with first hydrophobic hole (11) on the stair step (6) of lower flier (3) interval stair step (6).
2. The prefabricated reinforced concrete slab stair of claim 1, wherein the stair body (1) is provided with a second water drainage hole (12) perpendicular to the installation wall surface, and the second water drainage hole (12) is perpendicular to and communicated with the first water drainage hole (11).
3. The prefabricated reinforced concrete slab stair as claimed in claim 1, wherein the stair steps (6) provided with the handrail installation grooves (701) are spaced by one stair step (6) without the handrail installation groove (701).
4. The prefabricated reinforced concrete stair of claim 3, wherein the upper step plate (2), the stair body (1), the stair steps (6) and the lower step plate (3) are prefabricated and formed into a whole at one time.
5. The prefabricated reinforced concrete slab stair of claim 1, wherein the water retaining rim (7), the water dripping line (8) and the prefabricated stair anti-slip strip (9) are prefabricated and formed at one time.
6. The prefabricated reinforced concrete slab stair of claim 1, wherein the stair handrail embedded part (4) comprises a fixing plate (401), embedded ribs (402) are welded on the lower side surface of the fixing plate (401), and a positioning hole (403) corresponding to the handrail mounting hole (702) is formed in the middle of the fixing plate (401).
7. The prefabricated reinforced concrete stair of claim 1, wherein the number of the wedge-shaped openings (10) is four, and the four wedge-shaped openings are symmetrically arranged at the ends of the upper step plate (2) and the lower step plate (3).
8. The prefabricated reinforced concrete slab stair of claim 1, wherein the number of the hoisting holes (5) is four, and the first steel bar inserting holes (201) on the upper tread plate (2) and the second steel bar inserting holes (301) on the lower tread plate (3) are symmetrically arranged at one side close to the stair body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921251801.XU CN211172776U (en) | 2019-08-02 | 2019-08-02 | Prefabricated reinforced concrete slab stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921251801.XU CN211172776U (en) | 2019-08-02 | 2019-08-02 | Prefabricated reinforced concrete slab stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211172776U true CN211172776U (en) | 2020-08-04 |
Family
ID=71802285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921251801.XU Expired - Fee Related CN211172776U (en) | 2019-08-02 | 2019-08-02 | Prefabricated reinforced concrete slab stair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211172776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663882A (en) * | 2020-12-08 | 2021-04-16 | 中建西部建设股份有限公司 | Light and thin type beam type prefabricated staircase made of ultra-high performance concrete and forming process thereof |
-
2019
- 2019-08-02 CN CN201921251801.XU patent/CN211172776U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663882A (en) * | 2020-12-08 | 2021-04-16 | 中建西部建设股份有限公司 | Light and thin type beam type prefabricated staircase made of ultra-high performance concrete and forming process thereof |
| CN112663882B (en) * | 2020-12-08 | 2022-05-10 | 中建西部建设股份有限公司 | Light and thin type beam type prefabricated staircase made of ultra-high performance concrete and forming process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 Termination date: 20210802 |