Stair structure with fabricated stair railing embedded parts

Abstract

The utility model provides a stair structure with an assembly type stair railing embedded part, which comprises a reinforced concrete stair and a railing, the side face of the reinforced concrete stair is provided with the railing, the embedded part is arranged between the reinforced concrete stair and the railing, and the embedded part comprises a steel bar, a ribbed steel plate, a transition plate and a connecting plate which are sequentially welded pairwise. The reinforcing steel bars and the ribbed steel plates are arranged in the reinforced concrete stairs, and the transition plates and the connecting plates are located outside the sides of the reinforced concrete stairs. The fabricated stair railing embedded part is partially embedded into a stair, and the exposed part is located on the side of the stair and does not occupy the stepping stair section area of the stair; the through holes are formed in the connecting plates, so that the handrail and the connecting plates are convenient to disassemble, field drilling is not needed in the whole mounting process, and the construction period is greatly shortened; the transition plate can be protected and decorated through the protective decorative cover; and the ribbed steel plates can be connected into a whole, so that the structural strength between the handrail and the reinforced concrete stair can be enhanced.

Description

Technical Field

[0001] The utility model relates to stairs, handrails and the like, and in particular to a staircase structure with assembled staircase handrail embedded parts. Background Art

[0002] In existing construction projects, the handrails of stairs are usually installed on the top surface of the steps, and there are two major problems with this setting method: one is that the effective use area of ​​the stair steps is reduced, and the other is that the installation of the handrail posts requires on-site drilling of holes on the stair steps. The handrail posts are set on the stair steps and are a certain distance away from the edge of the stair steps, which will reduce the effective width of the stair steps and compress the effective use area of ​​the stair steps. In addition, the installation of current handrails usually requires using a tile hole opener to drill holes at the layout position, then using an impact drill to deepen the hole, and then using expansion bolts to fix the handrail posts to the stair steps. The installation of handrails increases a lot of on-site work, and it is difficult to meet the need for handrail replacement in the later stage.

[0003] Therefore, it is urgent to provide a novel staircase structure. Utility Model Content

[0004] The main purpose of the utility model is to provide a staircase structure with assembled staircase railing embedded parts, hoping to effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A staircase structure with prefabricated staircase railing embedded parts, characterized in that it includes reinforced concrete stairs and railings, characterized in that: the side of the reinforced concrete stairs is provided with a railing, and embedded parts are provided between the reinforced concrete stairs and the railings, the embedded parts include steel bars, ribbed steel plates, transition plates, and connecting plates, and are welded in pairs in sequence, the steel bars and ribbed steel plates are arranged in the reinforced concrete stairs, and the transition plates and connecting plates are located outside the side of the reinforced concrete stairs.

[0007] While adopting the above technical solutions, the present invention can also adopt or combine the following technical solutions:

[0008] As a preferred technical solution of the utility model: each run of reinforced concrete stairs is provided with at least three embedded parts.

[0009] As a preferred technical solution of the utility model: each embedded part is provided with at least two steel bars.

[0010] As a preferred technical solution of the utility model: the connecting plate is provided with a through hole, and the railing is fixed to the through hole on the connecting plate by bolts.

[0011] As a preferred technical solution of the utility model: a protective decorative cover is provided on the transition plate; the protective decorative cover is composed of an upper protective cover plate, a lower protective cover plate and a fixed plate, the fixed plate is arranged above the V-groove of the transition plate, the upper protective cover plate and the lower protective cover plate are respectively arranged above and below the transition plate, and the upper protective cover plate and the lower protective cover plate are fixed by bolts.

[0012] As a preferred technical solution of the utility model: the ribbed steel plate in each run of reinforced concrete stairs is an integral whole, a second connecting plate is provided on the connecting plate of the embedded part, a first adjusting plate and a second adjusting plate are provided between the second connecting plate and the connecting plate, and the first adjusting plate and the second adjusting plate are used to adjust the second connecting plate to be horizontal.

[0013] The utility model provides a staircase structure with pre-embedded parts of assembled staircase railings, which has the following beneficial effects: by arranging the pre-embedded parts of the assembled staircase railings, parts of the pre-embedded parts of the assembled staircase railings are pre-embedded in the reinforced concrete staircase, and the parts exposed to the outside are on the side of the reinforced concrete staircase, for example, in the position of the stairwell, so that the step area of ​​the staircase will not be occupied; in addition, by arranging perforations on the connecting plates, the railings and the connecting plates can be disassembled conveniently, and the whole installation process does not require on-site drilling, which greatly shortens the construction period; further, the transition plate can be protected and decorated by a protective decorative cover; in addition, the ribbed steel plates can be connected into a whole, for example, a whole steel plate, so that the structural strength between the railings and the reinforced concrete staircase can be enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A cross-sectional view of a staircase structure with a single embedded part of an assembled staircase railing provided by the utility model;

[0015] Figure 2 It is a top view of a staircase structure with a single embedded part of an assembled staircase railing;

[0016] Figure 3 A top view of an embedded part of a staircase structure having a single embedded part of an assembled staircase railing;

[0017] Figure 4 A three-dimensional diagram of a transition plate and a connection plate of a staircase structure having a single embedded part of an assembled staircase railing;

[0018] Figure 5 A cross-sectional view of the connection to protect the decorative cover;

[0019] Figure 6 A top view of the connection to protect the decorative cover;

[0020] Figure 7A cross-sectional view of a staircase structure with integral embedded parts of assembled staircase railings provided by the utility model;

[0021] Figure 8 A top view of a staircase structure having integral embedded parts of assembled staircase railings;

[0022] Fig. 9 A top view of an embedded part of a staircase structure having an integral embedded part of an assembled staircase railing;

[0023] Fig.10 A three-dimensional diagram of a transition plate and a connection plate of a staircase structure with integral embedded parts of an assembled staircase railing;

[0024] In the figure: 1-reinforced concrete staircase; 2-handrail; 3-embedded parts; 4-protective decorative cover; 31-rebar; 32-ribbed steel plate; 33-transition plate; 34-connecting plate; 35-integral ribbed steel plate; 41-lower protective decorative cover; 42-upper protective decorative cover; 43-fixing plate; 51-screw; 52-first nut; 53-second nut; 341-lower connecting plate; 342-upper connecting plate; 343-first adjustment plate; 344-second adjustment plate. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

[0026] Example 1: Single embedded part

[0027] like Figure 1-6 As shown, the installation process of the single embedded parts of the stair railing:

[0028] Embedding of embedded parts 3: The embedded parts 3 are positioned by the steel bars 31 on the embedded parts 3, and the steel bars 31 are welded or tied to the steel bars in the reinforced concrete staircase 1 to fix the embedded parts 3 in the reinforced concrete staircase 1.

[0029] At least three embedded parts 3 are embedded in each flight of stairs. The embedded steel plates of the embedded parts 3 are ribbed steel plates 32, which not only provide a large bearing capacity for the railing columns, but the ribs can also enhance the anchoring force of the embedded parts 3 in the reinforced concrete stairs 1. At least two steel bars 31 are arranged in each embedded part 3, and hooks can be arranged as needed. The steel bars 31 play two roles of positioning and anti-pullout.

[0030] Connection between the stair railing 2 and the embedded part 3: a hole is opened on the connecting plate 34 of the embedded part 3, and the main rod of the stair railing 2 is connected to the connecting plate 34 of the embedded part 3 by bolts to achieve rapid positioning and installation, and then the railing brushed plate (tube) is assembled and the handrail plate (tube) is installed to form a stable railing device.

[0031] Installation of the protective decorative cover 4: After the railing 2 and the embedded part 3 are installed and fixed, install the protective decorative cover 4, first install the lower protective decorative cover 41, fix the lower protective decorative cover 41 to the V-shaped groove on the transition plate 33 through the screw 51, the fixing plate 43 and the first nut 52, and then install the upper protective decorative cover 42, and finally fix it through the second nut 53.

[0032] Example 2: Integral embedded parts

[0033] like Figure 7-10 As shown in the figure, the installation process of the integral embedded parts of the stair railing:

[0034] Embedding of embedded parts 3: The embedded parts 3 are fixed in the reinforced concrete staircase 1 by welding or binding the steel bars 31 on the embedded parts 3 to the steel bars in the reinforced concrete staircase 1 .

[0035] The main difference between the integral embedded parts of the stair railing and the single embedded parts of the stair railing is that the integral ribbed steel plate 35 in the integral embedded parts of the stair railing connects the multiple embedded parts in each reinforced concrete staircase 1 to form a whole, while the ribbed steel plate 33 in the single embedded parts of the stair railing only needs to consider its own structural strength. The embedded steel plate of the embedded part 3 uses the integral ribbed steel plate 35, which not only provides a larger bearing capacity for the railing column, but also the ribs can enhance the anchoring force of the embedded part 3 in the reinforced concrete staircase 1.

[0036] The connecting plate 34 has a π-shaped cross-section and is composed of a lower connecting plate 341 (also known as a connecting plate), an upper connecting plate 342 (also known as a second connecting plate), a first adjustment plate 343, and a second adjustment plate 344. Holes are provided on the upper connecting plate 342 to facilitate the positioning and installation of the railing 2 columns. Since the embedded parts 3 have the same slope as the reinforced concrete staircase 1, the upper connecting plate 342 needs to be leveled through the cooperation of the first adjustment plate 343 and the second adjustment plate 344 to provide a flat working surface for the installation of the railing 2 columns.

[0037] Typically, the height of prefabricated stairs is adjusted in the factory according to the design dimensions of the stairs (ie, the height of the first adjustment plate 343 and / or the second adjustment plate 344 is adjusted), while cast-in-place floors usually need to be adjusted on site.

[0038] Connection between the stair railing 2 and the embedded part 3: a hole is opened on the connecting plate 34 of the embedded part 3, and the main rod of the stair railing 2 is connected to the connecting plate 34 of the embedded part 3 by bolts to achieve rapid positioning and installation, and then the railing brushed plate (tube) is assembled and the handrail plate (tube) is installed to form a stable railing device.

[0039] Installation of the protective decorative cover 4: After the railing 2 and the embedded part 3 are installed and fixed, install the protective decorative cover 4, first install the lower protective decorative cover 41, fix the lower protective decorative cover 41 to the V-shaped groove on the transition plate 33 through the screw 51, the fixing plate 43 and the first nut 52, and then install the upper protective decorative cover 42, and finally fix it through the second nut 53.

[0040] The above-mentioned specific implementation methods are used to explain the present invention and are only preferred embodiments of the present invention, rather than limiting the present invention. Any modifications, equivalent substitutions, improvements, etc. made to the present invention within the spirit of the present invention and the protection scope of the claims shall fall within the protection scope of the present invention.

Claims

1. A staircase structure with pre-embedded parts for assembled staircase railings, comprising reinforced concrete stairs and railings, characterized in that: The side of the reinforced concrete staircase is provided with a handrail, and an embedded part is provided between the reinforced concrete staircase and the handrail. The embedded parts include steel bars, ribbed steel plates, transition plates, and connecting plates, which are welded in pairs in sequence. The steel bars and ribbed steel plates are arranged in the reinforced concrete staircase, and the transition plates and connecting plates are located outside the side of the reinforced concrete staircase.

2. The staircase structure with prefabricated staircase railing embedded parts according to claim 1, characterized in that: Each run of reinforced concrete stairs is equipped with at least three embedded parts.

3. The staircase structure with prefabricated staircase railing embedded parts according to claim 1, characterized in that: Each embedded part is provided with at least two steel bars.

4. The staircase structure with prefabricated staircase railing embedded parts according to claim 1, characterized in that: The connecting plate is provided with a through hole, and the railing is fixed to the through hole on the connecting plate by bolts.

5. The staircase structure with prefabricated staircase railing embedded parts according to claim 1, characterized in that: The transition plate is provided with a protective decorative cover; The protective decorative cover consists of an upper protective cover plate, a lower protective cover plate and a fixed plate. The fixed plate is arranged above the V-shaped groove of the transition plate. The upper protective cover plate and the lower protective cover plate are respectively arranged above and below the transition plate. The upper protective cover plate and the lower protective cover plate are fixed by bolts.

6. The staircase structure with prefabricated staircase railing embedded parts according to claim 1, characterized in that: The ribbed steel plate in each reinforced concrete staircase is a whole, a second connecting plate is provided on the connecting plate of the embedded part, a first adjusting plate and a second adjusting plate are provided between the second connecting plate and the connecting plate, and the first adjusting plate and the second adjusting plate are used to adjust the second connecting plate to be horizontal.

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