CN219011757U - Prefabricated staircase based on supplementary pre-buried connecting piece - Google Patents
Prefabricated staircase based on supplementary pre-buried connecting piece Download PDFInfo
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- CN219011757U CN219011757U CN202223094397.4U CN202223094397U CN219011757U CN 219011757 U CN219011757 U CN 219011757U CN 202223094397 U CN202223094397 U CN 202223094397U CN 219011757 U CN219011757 U CN 219011757U
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Abstract
The utility model discloses a prefabricated staircase based on auxiliary pre-buried connecting pieces, which comprises a base body, an initial platform, a floor platform and a plurality of steps, wherein the steps comprise a kicking surface and a tread, grooves are formed in the initial platform, the floor platform and the tread corresponding to a handrail support column and close to one end of the tread, the auxiliary pre-buried connecting pieces are arranged in the grooves, and the auxiliary pre-buried connecting pieces are connected with upper and lower distribution ribs arranged in the base body. The prefabricated staircase based on the auxiliary pre-buried connecting piece can quickly complete connection of the prefabricated staircase and the railing handrail, and meanwhile, adverse effects caused by inaccurate paying-off when the traditional prefabricated staircase is connected with the railing handrail are effectively overcome.
Description
Technical Field
The utility model belongs to the technical field of building prefabricated stairways, and particularly relates to a prefabricated stairway based on auxiliary pre-buried connecting pieces.
Background
In the assembled prefabricated components, the prefabricated stairway has the advantages of cast-in-situ plates and prefabricated plates, namely, the prefabricated stairway has the advantages of good integrity, good anti-seismic performance, no environmental influence, good component forming effect, high construction speed, less field wet operation and the like, and stands out from the components such as the prefabricated shear wall, the prefabricated bay window, the prefabricated beam, the prefabricated column and the like.
However, the conventional prefabricated stairway has the following disadvantages when connected to the handrail: the detailed design of the fixing piece when the railing handrail is connected is not fully considered in the design; firstly paying off is adopted in a construction site, punching and installing are carried out according to the positions of the sprung fixing pieces, each fixing piece is fixed by two expansion bolts with the diameter of 10mm, and the influence of punching on the strength of concrete is not fully considered; after the position spacing, the perpendicularity and the straightness are confirmed to meet the requirements, the welding railing is polished, and the working procedure is complex; when the welding seam is inspected, the welding spot is not easy to be firm, and the uniformity degree of the welding wave on the metal surface of the welding seam is not easy to meet the requirement. The traditional connection mode seriously affects the construction efficiency and reduces the strength of the prefabricated staircase steel bars, and the punching, welding, polishing and checking of the welding part inevitably increases extra workload, so that the engineering construction cost is increased and the construction efficiency is reduced.
Disclosure of Invention
The utility model aims to provide a prefabricated staircase based on auxiliary pre-buried connecting pieces, which can quickly finish the connection between the prefabricated staircase and a railing handrail and does not damage the strength of the prefabricated staircase.
The technical scheme includes that the prefabricated staircase based on the auxiliary pre-buried connecting piece comprises a base body, an initial platform, a floor platform and a plurality of steps, wherein the steps comprise a kicking surface and a tread, grooves are formed in the initial platform, the floor platform and the tread corresponding to a handrail support column and close to one end of the tread, the auxiliary pre-buried connecting piece is arranged in the grooves, and the auxiliary pre-buried connecting piece is connected with upper and lower distribution ribs arranged in the base body.
The present utility model is also characterized in that,
the auxiliary embedded connecting piece comprises a flange plate, the flange plate is arranged in the groove, a through hole is formed in the center of the flange plate, a prefabricated member bolt penetrates through the through hole, the prefabricated member bolt is connected with the flange plate through a nut, and the prefabricated member bolt is connected with the upper distribution rib and the lower distribution rib.
The prefabricated member bolt is J-shaped.
A plurality of symmetrical threaded holes which are opposite in edge are formed in the flange plate, and bolts penetrate through the threaded holes.
At least 4 threaded holes are formed.
The starting platform and the floor platform are respectively provided with a pair of connecting holes for connecting the floor or the rest platform.
The utility model has the advantages that,
(1) The prefabricated stair structure is connected with the railing handrail through the flange plate, so that the railing is convenient to install, other operations are not needed, the connection between the prefabricated stair and the railing handrail can be completed only through the nuts, the prefabricated stair structure is convenient to detach in the later period, the operation is simple and convenient, and manpower and materials are saved.
(2) The prefabricated staircase is provided with the grooves on the stair surface, and the flange plate is arranged in the grooves, so that the connection of the stair railing can be simplified, the labor cost is reduced, the backing plate of the railing is flush with the stair surface after the connection of the flange plate, and the appearance attractiveness is enhanced.
(3) When the prefabricated staircase is connected with the railing handrail, perforating operation is not needed to be carried out on the prefabricated staircase, so that the mounting steps are simplified, and meanwhile, the risks of cracks and gaps generated by the staircase are reduced.
Drawings
FIG. 1 is a schematic view of a prefabricated staircase based on auxiliary pre-buried connectors according to the present utility model;
FIG. 2 is a top view of a prefabricated staircase based on auxiliary pre-buried connectors according to the present utility model;
FIG. 3 is a schematic view of an auxiliary pre-buried connector in a prefabricated staircase based on the auxiliary pre-buried connector.
In the figure, 101, prefabricated part bolts, 102, flange plates, 103, bolts, 104, nuts, 105, upper longitudinal ribs, 106, upper and lower distribution ribs, 107, reinforcing ribs, 108, grooves, 109, treads, 110, connecting holes, 111, starting platforms, and 112.
Detailed Description
The utility model will be described in detail below with reference to the drawings and the detailed description.
The structure of the prefabricated staircase based on the auxiliary pre-buried connecting piece is shown in fig. 1, and the prefabricated staircase comprises a base body, an initial platform 111, a floor platform 112 and a plurality of steps, wherein the steps comprise a kicking surface and a tread 109, grooves 108 are formed in the initial platform 111, the floor platform 112 and the tread 109 corresponding to a handrail support column of a railing, the grooves 108 are formed near the edge of one end of the whole staircase, the auxiliary pre-buried connecting piece is arranged in the grooves 108, and the auxiliary pre-buried connecting piece is connected with the railing, so that the welding or steel pipe fastener type connection mode of the existing railing is omitted, the railing can be conveniently and rapidly installed, the construction efficiency is improved, and the labor cost is reduced.
The tread 109 is embedded with the strengthening rib 107 down, is connected with upper portion between initial platform 111 and the floor platform 112 and indulges muscle 105 and upper and lower distribution muscle 106, and upper portion indulges muscle 105 and upper and lower distribution muscle 106 are located the base member, and supplementary pre-buried connecting piece passes upper portion indulges muscle 105 and upper and lower distribution muscle 106 to be connected, provides pretension for supplementary pre-buried connecting piece. A pair of connection holes 110 are formed in the starting platform 111 and the landing platform 112, respectively, and the connection holes 110 can be connected with a floor slab or a rest platform through the connection holes 110 when the post-stage prefabricated stairway is assembled.
As shown in fig. 2, the starting platform 111 and the floor platform 112 are provided with grooves 108, the grooves 108 formed in the grooves 108 are equidistant from two adjacent grooves 108, the tread 109 is provided with at least one groove 108, so that the stability of the railing handrail can be ensured in the later stage when the railing handrail is installed, and the tread 109 is connected with the railing handrail after being provided with the grooves 108, and the pad and the tread at the lower end of the railing handrail are flush, so that the overall aesthetic property of the stair is enhanced.
As shown in fig. 3, the auxiliary pre-buried connecting piece comprises a flange plate 102, the flange plate 102 is arranged in a groove 108, the flange plate 102 is rectangular, the four sides do not extend out of a tread 109, handrail backing plates with corresponding sizes can be directly customized according to the sizes of the groove 108, during construction and installation, the placement positions of the handrail backing plates can be accurately positioned without paying off, a through hole is formed in the center of the flange plate 102, a prefabricated member bolt 101 penetrates through the through hole, the prefabricated member bolt 101 is connected with the flange plate 102 through a nut 104, the prefabricated member bolt 101 is integrally J-shaped, and the lower ends of the prefabricated member bolt are hooked on an upper distribution rib 106 and a lower distribution rib 106, so that the prefabricated member bolt is connected with the upper distribution rib 106 and the lower distribution rib 106.
The flange plate 102 is provided with a plurality of symmetrical opposite side threaded holes, bolts 103 penetrate through the threaded holes, and at least 4 threaded holes are formed. The flange plate 102 and the prefabricate member bolts 101 are pre-embedded into the stairs in advance to strengthen the connection between the handrail and the precast stair concrete slab; the bolts 103 on the flange plate 102 are connected with the base plate at the lower end of the railing armrest, namely welding is not needed, the influence caused by the traditional paying-off error is also solved, and the size of the flange plate 102 can be processed and set according to the size of the groove 108.
When the prefabricated staircase is constructed and the railing handrail is installed, the lower end of the railing post is fixedly connected with the base plate, the base plate is provided with the through holes corresponding to the bolts 103, the base plate of the railing handrail is slowly placed into the bolts 103 from the upper part in a vertical placement mode, the bolts 103 are screwed down to fasten the base plate and the flange plate 102 together, then the railing handrail structure is installed from the bottom to the top in sequence, the whole installation is very simple and convenient, the installation accuracy can be ensured without paying off and positioning, and the railing handrail can be replaced only by disassembling the bolts 103 when the railing handrail is required to be replaced in the later stage.
Claims (6)
1. Prefabricated staircase based on supplementary pre-buried connecting piece, including base member, initial platform (111), floor platform (112) and a plurality of step, the step includes play face and tread (109), its characterized in that, be close to one end position on initial platform (111), floor platform (112) and tread (109) that corresponds with railing handrail support column and all open fluted (108), be provided with supplementary pre-buried connecting piece in recess (108), supplementary pre-buried connecting piece is connected with upper and lower distribution muscle (106) that set up in the base member.
2. The prefabricated staircase based on auxiliary pre-buried connecting piece according to claim 1, characterized in that the auxiliary pre-buried connecting piece comprises a flange plate (102), the flange plate (102) is arranged in a groove (108), a through hole is formed in the center of the flange plate (102), a prefabricated member bolt (101) penetrates through the through hole, the prefabricated member bolt (101) is connected with the flange plate (102) through a nut (104), and the prefabricated member bolt (101) is connected with an upper distribution rib (106).
3. A prefabricated staircase based on auxiliary pre-buried connectors according to claim 2, characterized in that the prefabricated member bolts (101) are J-shaped.
4. The prefabricated staircase based on auxiliary pre-buried connecting pieces according to claim 2, characterized in that the flange plate (102) is provided with a plurality of symmetrical opposite side threaded holes, and bolts (103) are penetrated in the threaded holes.
5. The prefabricated staircase based on auxiliary pre-buried connectors according to claim 4, wherein at least 4 threaded holes are provided.
6. A prefabricated stairway based on auxiliary pre-buried connection according to claim 1, wherein a pair of connection holes (110) for connecting a floor or a rest platform are formed on the starting platform (111) and the landing (112), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223094397.4U CN219011757U (en) | 2022-11-17 | 2022-11-17 | Prefabricated staircase based on supplementary pre-buried connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223094397.4U CN219011757U (en) | 2022-11-17 | 2022-11-17 | Prefabricated staircase based on supplementary pre-buried connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219011757U true CN219011757U (en) | 2023-05-12 |
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ID=86245871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223094397.4U Active CN219011757U (en) | 2022-11-17 | 2022-11-17 | Prefabricated staircase based on supplementary pre-buried connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219011757U (en) |
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2022
- 2022-11-17 CN CN202223094397.4U patent/CN219011757U/en active Active
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