CN209891598U - Light prefabricated assembled stair - Google Patents
Light prefabricated assembled stair Download PDFInfo
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- CN209891598U CN209891598U CN201920410760.8U CN201920410760U CN209891598U CN 209891598 U CN209891598 U CN 209891598U CN 201920410760 U CN201920410760 U CN 201920410760U CN 209891598 U CN209891598 U CN 209891598U
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Abstract
The utility model relates to a light prefabricated assembled stair, which comprises a plurality of prefabricated step plate unit components, two ladder beam components, an embedded part A and an embedded part B; the two ladder beam components are arranged at left and right intervals, the lower end of each ladder beam component is fixed through an embedded part A, and the upper end of each ladder beam component is fixed through an embedded part B. An object of the utility model is to provide a can effectively improve light-duty prefabricated assembled stair of prefabricated rate and assembly rate. The utility model has the advantages that: the utility model discloses disassemble into a plurality of prefabricated step board unit components with whole bench to it is fixed to support through two ladder roof beam components, makes each component parts miniaturization, light-dutyization, the standardization of prefabricated assembled stair.
Description
Technical Field
The utility model relates to a construction field, especially a light-duty prefabricated assembled stair.
Background
In recent years, the building industrialization is rapidly developed, and the application of the prefabricated stair component is more and more extensive besides the traditional beam-slab-column component. However, the standard atlas of the traditional reinforced concrete prefabricated assembled stairway is that one stair section is prefabricated as one component, taking the net width of a stair room as 2.5 meters and the layer height as 2.9 meters as an example, the weight of one stair section of the double-run stairway is 1.92 tons, the weight of a scissor ladder is 4.64 tons, the stair is generally the heaviest component in the components in the PC prefabricated building, the requirement on tower crane equipment is high, the rent share of the stair is higher in construction cost, the moulds of the stair sections are a complete set, and the mould cost is also high.
Traditional reinforced concrete prefabricated assembly type stair component is from great, and transportation and installation are comparatively difficult, are unfavorable for promoting in three four lines cities.
Disclosure of Invention
An object of the utility model is to provide a can effectively improve light-duty prefabricated assembled stair of prefabricated rate and assembly rate.
The purpose of the utility model is realized through the following technical scheme: a light prefabricated assembled stair comprises a plurality of prefabricated step plate unit components, two ladder beam components, an embedded part A and an embedded part B; the two ladder beam components are arranged at left and right intervals, the lower end of each ladder beam component is fixed through an embedded part A, and the upper end of each ladder beam component is fixed through an embedded part B; the ladder beam components comprise vertical side plates and transverse bottom plates arranged at the bottoms of the vertical side plates, and the transverse bottom plates of the two ladder beam components are oppositely arranged to form supporting parts for supporting the left end and the right end of the prefabricated step plate unit component; the cross section of each prefabricated step plate unit component is a right-angled triangle, the inclined plane of each prefabricated step plate unit component is overlapped on the transverse bottom plate of the ladder beam component, and each prefabricated step plate unit component is sequentially overlapped along the extension direction of the ladder beam component; and locking plates which are in one-to-one correspondence with the front side surfaces of the prefabricated step plate unit components are arranged on the vertical side plates of the ladder beam components and are fixedly connected with the prefabricated step plate unit components through bolt fasteners.
Compare prior art, the utility model has the advantages of:
1. the utility model discloses disassemble into a plurality of prefabricated step board unit components with whole bench to it is fixed to support through two ladder roof beam components, makes each component parts miniaturization, light-dutyization, the standardization of prefabricated assembled stair.
2. The prefabricated step plate unit component is used as a reinforced concrete standard prefabricated unit, and the reuse rate of the component and the mould is high; and the prefabricated step plate unit component adopts the design of hollow triangle-shaped step plate, extrudes through the mould, has effectively alleviateed the weight of prefabricated unit.
3. The ladder beam component is a steel ladder beam with a Z-shaped section, the stability and the rigidity are higher than those of a steel plate beam with the same weight, and the lower flange of the Z-shaped steel ladder beam can support the prefabricated step plate unit component, so that the installation is convenient and safe, and the step plate unit component is not required to be temporarily fixed or suspended for waiting for the step plate unit component to be fixed.
4. In order to prevent the water leakage of the step plate, the lap joint end of the prefabricated step plate unit component is provided with a reversed opening structure and a matched rubber water stop strip.
5. The step protective sleeve is formed by extrusion of wear-resistant engineering plastics, the cross section of the step protective sleeve is matched with the surface shape of the prefabricated step plate unit component, and the corner of the prefabricated step plate unit component is coated, so that the prefabricated step plate unit component can be comprehensively protected.
6. The bottom surface of the stepping protective sleeve is provided with a plurality of anti-sliding raised lines, and the anti-sliding raised lines are embedded into the anti-sliding grooves on the upper side surface of the prefabricated stepping plate unit component during installation, so that the resistance can be increased to resist the force of sliding down or sliding out generated when the user goes down stairs.
7. The front side corner of prefabricated step plate unit component sets up the arc flange that extends forward, and the protective sheath of marking time designs into full parcel, can catch on the arc flange, and the protective sheath of marking time is turned over and is raised the perk on the skirting drives when preventing to go upstairs.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the light prefabricated staircase of the present invention.
Figure 2 is a front view of the assembled prefabricated step plate unit components.
Figure 3 is a top plan view of the prefabricated step panel unit components after assembly.
Fig. 4 is a schematic view of a connection structure of prefabricated step plate unit members and ladder beam members.
Fig. 5 is a schematic view of the connection structure of the side screw sleeve of the ladder beam member and the prefabricated step plate unit member.
FIG. 6 is an installation schematic of the stepping protective casing.
FIG. 7 is a schematic view of the stepping protective sleeve.
Description of reference numerals: the prefabricated step plate comprises 1 prefabricated step plate unit component, 11 evacuation structures, 12 anti-skid grooves, 13 threaded sleeves, 14 arc-shaped flanges, 15 reverse-opening slots, 16 reverse-opening insertion parts, 17 side threaded sleeves, 2 step beam components, 21 vertical side plates, 22 transverse bottom plates, 23 transverse top plates, 3 embedded parts A, 31 embedded steel bars A, 32 connecting supports A, 4 embedded parts B, 41 embedded steel bars B, 42 connecting supports B, 5 locking plates, 6 step protective sleeves, 61 step sections, 62 bending sections, 63 locking sections, 64 anti-skid convex strips and 65 anti-skid grains.
Detailed Description
The invention is described in detail below with reference to the drawings and examples of the specification:
fig. 1 to 7 are schematic views illustrating an embodiment of a light prefabricated staircase according to the present invention.
A light prefabricated assembled stair comprises a plurality of prefabricated step plate unit components 1, two ladder beam components 2, an embedded part A3 and an embedded part B4;
the two ladder beam components 2 are arranged at left and right intervals, the lower end of each ladder beam component 2 is fixed through an embedded part A3, and the upper end is fixed through an embedded part B4;
the ladder beam components 2 comprise vertical side plates 21 and transverse bottom plates 22 arranged at the bottoms of the vertical side plates 21, and the transverse bottom plates 22 of the two ladder beam components 2 are oppositely arranged to form supporting parts for supporting the left end and the right end of the prefabricated step plate unit component 1;
the cross section of the prefabricated step plate unit components 1 is a right-angled triangle, the inclined plane of the prefabricated step plate unit components 1 is overlapped on the transverse bottom plate 22 of the ladder beam component 2, and the prefabricated step plate unit components 1 are sequentially overlapped along the extension direction of the ladder beam component 2;
and the vertical side plate 21 of the ladder beam component 2 is provided with locking plates 5 which are in one-to-one correspondence with the front side surfaces of the prefabricated step plate unit components 1, and the locking plates 5 are fixedly connected with the prefabricated step plate unit components 1 through bolt fasteners.
The locking plate 5 is fixed to the vertical side plate 21 of the ladder beam member 2 by welding.
In one embodiment, in order to further increase the rigidity of the staircase, side threaded sleeves 17 may be embedded in the left and right ends of the prefabricated tread board unit members 1, and the prefabricated tread board unit members 1 are fixedly connected to the vertical side plates 21 through bolts.
An evacuation structure 11 is provided in the middle of the prefabricated footboard unit members 1.
The evacuation structure 11 penetrates the prefabricated step panel unit members 1 from left to right.
The prefabricated step plate unit component 1 is prefabricated by reinforced concrete; the ladder beam component 2 is a steel plate beam.
The adjacent prefabricated step plate unit components 1 are mutually overlapped, and the overlapped part of the prefabricated step plate unit components 1 is provided with a reversed opening structure.
In this embodiment, the bottom of the front side of the prefabricated step plate unit member 1 is provided with a reverse slot 15, and the top of the rear side of the prefabricated step plate unit member 1 is provided with a reverse insertion part 16 matching with the reverse slot 15.
The reverse opening structure of the two prefabricated step plate unit components 1 is provided with a rubber water stop strip in a matching way.
The ladder beam member 2 further comprises a transverse top plate 23 arranged at the upper end of the vertical side plate 21, the transverse top plate 23 is used for fixing the guard rail, and the transverse top plate 23, the vertical side plate 21 and the transverse bottom plate 22 form a Z shape.
The embedded part A3 comprises embedded steel bars A31 and a connecting support A32 fixed with the embedded steel bars A31, and the connecting support A32 is fixed with the ladder beam member 2 through bolt fasteners;
the embedded part B4 includes embedded steel bar B41 and with embedded steel bar B41 fixed linking bridge B42, linking bridge B42 passes through bolt fastener and is fixed with ladder beam component 2.
The utility model also comprises a stepping protective sleeve 6 made of wear-resistant plastics, wherein the stepping protective sleeve 6 comprises a stepping section 61 for covering the upper side surface of the prefabricated stepping plate unit component 1, a bending section 62 which is arranged at the front side of the stepping section 61 and is used for protecting the corners of the prefabricated stepping plate unit component 1, and a locking section 63 which is arranged at the lower side of the bending section 62 and is used for being fixed at the front side surface of the prefabricated stepping plate unit component 1;
the front side surface of the prefabricated step plate unit component 1 is pre-embedded with a threaded sleeve 13, and the locking section 63 is fixed on the threaded sleeve 13 through a screw;
a plurality of left and right extending anti-slip grooves 12 are preset on the upper side surface of the prefabricated step plate unit component 1, and a plurality of anti-slip convex strips 64 matched with the anti-slip grooves 12 are arranged on the bottom surface of the step section 61.
The upper side surface of the step section 61 is also provided with anti-skid grains 65.
The front side corner of the prefabricated step plate unit component 1 is provided with an arc-shaped flange 14 extending forwards, and the bending section 62 is an arc-shaped section matched with the arc-shaped flange 14.
The installation process of the light prefabricated assembled stair is as follows:
1. pre-burying an embedded part A3 and an embedded part B4 according to the designed elevation and the plane position;
2. installing two ladder beam members 2, wherein the upper end and the lower end of a transverse bottom plate 22 of each ladder beam member 2 are respectively fixed on a connecting bracket A32 and a connecting bracket B42 through bolts;
3. mounting the prefabricated step plate unit components 1, starting from the first step of the lowest end, and firstly placing the left end and the right end of the prefabricated step plate unit components 1 on the transverse bottom plates 22 of the two ladder beam components 2;
4. welding a locking plate 5 on a vertical side plate 21 of the ladder beam member 2, enabling the locking plate 5 to be attached to the front side surface of the prefabricated step plate unit member 1 in an attached mode, arranging bolt holes in the locking plate 5, and fixing the locking plate 5 and the prefabricated step plate unit member 1 through bolts;
5. installing a second-step prefabricated step plate unit component 1 upwards, aligning a reverse slot 15 at the lower side of the second-step prefabricated step plate unit component 1 with a reverse insertion part 16 at the upper side of the first-step prefabricated step plate unit component 1, installing a water stop strip, and repeating the step 4;
6. after finishing the installation of the prefabricated step plate unit component 1 of the last step, installing the step protective sleeve 6 again, aligning the anti-sliding convex strip 64 of the step protective sleeve 6 with the anti-sliding groove 12 on the prefabricated step plate unit component 1, fixing the locking section 63 in the pre-buried threaded sleeve by adopting two M5 screws, and repeatedly installing each step.
Claims (10)
1. The utility model provides a light-duty prefabricated assembled stair which characterized in that: the prefabricated step plate unit comprises a plurality of prefabricated step plate unit components (1), two ladder beam components (2), an embedded part A (3) and an embedded part B (4);
the two ladder beam components (2) are arranged at left and right intervals, the lower end of each ladder beam component (2) is fixed through an embedded part A (3), and the upper end of each ladder beam component is fixed through an embedded part B (4);
the ladder beam components (2) comprise vertical side plates (21) and transverse bottom plates (22) arranged at the bottoms of the vertical side plates (21), and the transverse bottom plates (22) of the two ladder beam components (2) are oppositely arranged to form supporting parts for supporting the left end and the right end of the prefabricated step plate unit component (1);
the cross section of each prefabricated step plate unit component (1) is a right-angled triangle, the inclined surface of each prefabricated step plate unit component is overlapped on the transverse bottom plate (22) of the ladder beam component (2), and each prefabricated step plate unit component (1) is sequentially overlapped along the extension direction of the ladder beam component (2);
and locking plates (5) which are in one-to-one correspondence with the front side surfaces of the prefabricated step plate unit components (1) are arranged on vertical side plates (21) of the ladder beam components (2), and the locking plates (5) are fixedly connected with the prefabricated step plate unit components (1) through bolt fasteners.
2. The lightweight prefabricated stairway according to claim 1, characterized in that: and an evacuation structure (11) is arranged in the middle of the prefabricated step plate unit component (1).
3. The lightweight prefabricated stairway according to claim 2, wherein: the prefabricated step plate unit component (1) is prefabricated by reinforced concrete; the ladder beam component (2) is a steel plate beam.
4. The lightweight prefabricated stairway according to claim 1, characterized in that: the adjacent prefabricated step plate unit components (1) are mutually overlapped, and the overlapped part of the prefabricated step plate unit components (1) is provided with a reversed opening structure.
5. The lightweight prefabricated stairway according to claim 4, wherein: the reverse opening structures of the two prefabricated step plate unit components (1) are provided with rubber water stop strips in a matching way.
6. The lightweight prefabricated stairway according to claim 1, characterized in that: the ladder beam component (2) further comprises a transverse top plate (23) arranged at the upper end of the vertical side plate (21), the transverse top plate (23) is used for fixing the guard rail, and a Z shape is formed among the transverse top plate (23), the vertical side plate (21) and the transverse bottom plate (22).
7. The lightweight prefabricated stairway according to claim 1, characterized in that: the embedded part A (3) comprises an embedded steel bar A (31) and a connecting support A (32) fixed with the embedded steel bar A (31), and the connecting support A (32) is fixed with the ladder beam component (2) through a bolt fastener;
the embedded part B (4) comprises embedded steel bars B (41) and a connecting support B (42) fixed with the embedded steel bars B (41), and the connecting support B (42) is fixed with the ladder beam component (2) through a bolt fastener.
8. The lightweight prefabricated staircase of any one of claims 1 to 7, wherein: the protective cover (6) comprises a stepping section (61) used for covering the upper side surface of the prefabricated stepping plate unit component (1), a bending section (62) arranged on the front side of the stepping section (61) and used for protecting the corners of the prefabricated stepping plate unit component (1), and a locking section (63) arranged on the lower side of the bending section (62) and used for being fixed on the front side surface of the prefabricated stepping plate unit component (1);
the front side surface of the prefabricated step plate unit component (1) is embedded with a threaded sleeve (13), and the locking section (63) is fixed on the threaded sleeve (13) through a screw;
a plurality of left and right extending anti-slip grooves (12) are preset on the upper side surface of the prefabricated step plate unit component (1), and a plurality of anti-slip convex strips (64) matched with the anti-slip grooves (12) are arranged on the bottom surface of the step section (61).
9. The lightweight prefabricated stairway according to claim 8, further comprising: the upper side surface of the step section (61) is also provided with anti-skid grains (65).
10. The lightweight prefabricated stairway according to claim 9, further comprising: the front side corner of the prefabricated step plate unit component (1) is provided with an arc-shaped flange (14) extending forwards, and the bending section (62) is an arc-shaped section matched with the arc-shaped flange (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920410760.8U CN209891598U (en) | 2019-03-28 | 2019-03-28 | Light prefabricated assembled stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920410760.8U CN209891598U (en) | 2019-03-28 | 2019-03-28 | Light prefabricated assembled stair |
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| Publication Number | Publication Date |
|---|---|
| CN209891598U true CN209891598U (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920410760.8U Active CN209891598U (en) | 2019-03-28 | 2019-03-28 | Light prefabricated assembled stair |
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| CN (1) | CN209891598U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395669A (en) * | 2020-03-20 | 2020-07-10 | 中国水利水电第八工程局有限公司 | Assembled shock insulation stair structure |
| CN112458887A (en) * | 2020-12-18 | 2021-03-09 | 南南铝工程有限责任公司 | Aluminum alloy pedestrian overpass ladder way connection structure |
| CN113089949A (en) * | 2021-04-12 | 2021-07-09 | 陕西省建筑设计研究院(集团)有限公司 | Construction method of concrete main body structure assembled sliding steel stair |
| CN113789923A (en) * | 2021-09-02 | 2021-12-14 | 台州普立德建筑科技有限公司 | Light prefabricated staircase and manufacturing method thereof |
-
2019
- 2019-03-28 CN CN201920410760.8U patent/CN209891598U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395669A (en) * | 2020-03-20 | 2020-07-10 | 中国水利水电第八工程局有限公司 | Assembled shock insulation stair structure |
| CN112458887A (en) * | 2020-12-18 | 2021-03-09 | 南南铝工程有限责任公司 | Aluminum alloy pedestrian overpass ladder way connection structure |
| CN113089949A (en) * | 2021-04-12 | 2021-07-09 | 陕西省建筑设计研究院(集团)有限公司 | Construction method of concrete main body structure assembled sliding steel stair |
| CN113789923A (en) * | 2021-09-02 | 2021-12-14 | 台州普立德建筑科技有限公司 | Light prefabricated staircase and manufacturing method thereof |
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