Prefabricated stair structure

Abstract

The utility model discloses a prefabricated stair structure which comprises a prefabricated stair mechanism, the prefabricated stair mechanism comprises a steel bar keel, a first bottom plate is arranged at one end of the steel bar keel, a side plate is arranged at the other end of the steel bar keel, and a plurality of pedals are arranged at the top end of the steel bar keel; the supporting mechanism comprises a top seat, the top end of the top seat is fixedly connected with the bottom end of the steel bar keel, and a supporting column is rotationally arranged at the bottom end of the top seat; and the number of the limiting mechanisms is two, each limiting mechanism comprises two lug seats, the side faces of the two lug seats are fixedly connected with the top seat, a rotating plate is jointly and rotationally connected between the two lug seats, a second rotating shaft is arranged at the top end of the rotating plate, and a limiting rod extending into the supporting column is slidably installed at the bottom end of the rotating plate. The prefabricated stair has the advantages of being fast to install and high in stability, and the problem that when an existing prefabricated stair is installed, a crane is occupied all the time, and consequently the installation efficiency of the prefabricated stair is reduced is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to prefabricated stair technology field, concretely is a prefabricated stair structure. BACKGROUND

[0002] With the advancement of building industrialization, prefabricated stair structure emerges as the times require. Prefabricated stairs are processed and manufactured in advance in the factory and then transported to the construction site for installation. This mode greatly shortens the on-site construction time, reduces the amount of high-altitude work, and effectively reduces the safety risk. Standardized production in the factory can strictly control quality, ensure stair size precision and appearance quality, and reduce the influence of human factors on quality. At the same time, prefabricated stairs are conducive to realizing standardized and large-scale production of building components, conform to the development trend of modern building industrialization, and provide strong support for the transformation and upgrading of the building industry.

[0003] The existing prefabricated stairs need to be lifted by a crane when installing, and then the prefabricated stairs are fixed. However, when using this installation method, the crane cannot be removed until the prefabricated stairs are installed, which occupies the use time of the crane and reduces the installation efficiency of the prefabricated stairs. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a prefabricated stair structure, which has the advantages of quick installation and high stability, and solves the problem that the current prefabricated stairs occupy the crane during installation, resulting in reduced installation efficiency of the prefabricated stairs.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a prefabricated stair structure, comprising: a prefabricated stair mechanism, the prefabricated stair mechanism comprises a steel bar keel, one end of the steel bar keel is provided with a bottom plate one, the other end is provided with a side plate, and the top end of the steel bar keel is provided with a plurality of stepping plates;

[0006] a supporting mechanism, the supporting mechanism comprises a top seat, the top end of the top seat is fixedly connected with the bottom end of the steel bar keel, and the bottom end of the top seat is rotatably provided with a support column;

[0007] a limiting mechanism, the limiting mechanism is provided with two, and each limiting mechanism comprises two ear seats, the side surfaces of the two ear seats are fixedly connected with the top seat, and the two ear seats are rotatably connected with a rotating plate between them, the top end of the rotating plate is provided with a rotating shaft two, and the bottom end is slidably installed with a limiting rod extending into the support column.

[0008] Preferably, the steel bar keel is inclined, the bottom plate one is arranged at the inclined bottom end of the steel bar keel and is horizontally arranged, and the side plate is arranged at the inclined top end of the steel bar keel and is vertically arranged. Each of the stepping plates is horizontally arranged.

[0009] Preferably, the top end of the top base is arranged at two-thirds of the distance from the bottom end of the steel reinforcement keel to the ground, and the inside of the top base is provided with a rotating shaft I rotatably connected with the support.

[0010] Preferably, the top end of the support is provided with a bevel towards one side of the inside of the top base, and the bottom end of the support is provided with a bottom plate II.

[0011] Preferably, the limiting rod is extended out of the outside of the rotating plate and is provided with a round plate, the outer edge surface of the round plate is provided with a plurality of convex columns, and the outer edge surface of the limiting rod between the rotating plate and the round plate is provided with a spring.

[0012] Preferably, the end of the limiting rod away from the round plate is extended into the support and is provided with two limiting strips, and the end of the limiting rod provided with the limiting strips is provided with a limiting disc, the upper and lower sides of the limiting disc are provided with through grooves for the limiting strips to pass through, and the side of the limiting strip away from the round plate is symmetrically provided with two blind grooves for the limiting strips to fit into.

[0013] Compared with the prior art, the utility model has the beneficial effects as follows:

[0014] 1、The utility model discloses a prefabricated stair mechanism, a top base, a support, a rotating shaft I, a bevel, a bottom plate II and a limiting mechanism are arranged, one end of the steel reinforcement keel is lifted by a crane, then the support is rotated around the rotating shaft I, the top base and the support are fixed through the limiting mechanism, the ground is supported through the bottom plate II at the bottom end of the support, the steel reinforcement keel is supported, and meanwhile, the crane can be removed, other prefabricated stairs are hoisted conveniently, and the installation efficiency of the prefabricated stairs is improved.

[0015] 2、The utility model discloses an ear seat, a rotating plate, a rotating shaft II, a limiting rod, a round plate, a convex column, a spring, a limiting strip and a limiting disc are arranged, the rotating plate is rotated around the rotating shaft II, the limiting rod at the bottom end of the rotating plate is slid, the limiting strip at the end of the limiting strip is passed through the through groove at the upper and lower ends of the limiting strip, then the round plate is rotated, the limiting strip is rotated and fit into the blind groove at the side of the limiting strip, the limiting rod is embedded in the limiting disc through the convex column and the round plate, the limiting of the top base and the support can be quickly completed, and the installation efficiency of the prefabricated stairs is improved. DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the utility model;

[0017] Figure 2 It is a front view structural schematic diagram of the utility model Figure 1 It is a front view structural schematic diagram of the utility model

[0018] Figure 3 It is an enlarged schematic diagram of the structure at A of the utility model Figure 2

[0019] Figure 4 It is an enlarged schematic diagram of the structure at A of the utility model​Figure 3 Structure diagram of the middle limiting mechanism.

[0020] The reference signs and names in the drawings are as follows:

[0021] 1, prefabricated stair mechanism; 11, steel keel; 12, bottom plate one; 13, side plate; 14, tread plate; 2, supporting mechanism; 21, top seat; 22, support column; 23, pivot one; 24, bevel; 25, bottom plate two; 3, limiting mechanism; 31, ear seat; 32, turning plate; 33, pivot two; 34, limiting rod; 35, round plate; 36, convex column; 37, spring; 38, limiting strip; 39, limiting disc. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0024] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0025] Referring to Figures 1 to 4 The utility model provides a kind of embodiment: a prefabricated stair structure, comprising: prefabricated stair mechanism 1, prefabricated stair mechanism 1 includes reinforcing bar keel 11, reinforcing bar keel 11 one end is provided with bottom plate one 12, the other end is provided with side plate 13, and reinforcing bar keel 11 top end is provided with several tread plate 14;Support mechanism 2, support mechanism 2 includes top seat 21, and top seat 21 top end is fixedly connected with reinforcing bar keel 11 bottom end, and top seat 21 bottom end is rotatably provided with support column 22;Limiting mechanism 3, limiting mechanism 3 is provided with two, and each limiting mechanism 3 includes two lug seat 31, the side of two lug seat 31 is fixedly connected with top seat 21, and two lug seat 31 are rotatably connected with the rotating plate 32 between two lug seat 31, and rotating plate 32 top end is provided with pivot two 33, and bottom end is slidably installed with the limiting rod 34 extending into support column 22.

[0026] Reinforcing bar keel 11 is obliquely arranged, bottom plate one 12 is arranged at the oblique bottom end of reinforcing bar keel 11, and is horizontally arranged, side plate 13 is arranged at the oblique top end of reinforcing bar keel 11, and is vertically arranged, each tread plate 14 is horizontally arranged, top seat 21 top end is placed at reinforcing bar keel 11 bottom end two-thirds from ground, and top seat 21 is internally provided with pivot one 23 rotatably connected with support column 22, and the side of support column 22 top end towards the interior of top seat 21 is provided with bevel angle 24, and support column 22 bottom end is provided with bottom plate two 25, limiting rod 34 one segment extends outside rotating plate 32, and is structured with round plate 35, the outer edge surface of round plate 35 is provided with several convex columns 36, the outer edge surface of limiting rod 34 between rotating plate 32 and round plate 35 is provided with spring 37, and the end of limiting rod 34 away from round plate 35 extends into support column 22, and is provided with two limiting strips 38, and the end of limiting rod 34 provided with limiting strip 38 is provided with limiting disc 39, and the upper and lower sides of limiting disc 39 are provided with the through slot for limiting strip 38 to pass through, and the side of limiting strip 38 away from round plate 35 is provided with two blind grooves for embedding limiting strip 38 left and right symmetrically.

[0027] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure reference in the claims should not be regarded as limiting the involved claims.

Claims

1. A prefabricated staircase structure, characterized in that, include: A prefabricated staircase mechanism (1) includes a steel keel (11), one end of which is provided with a base plate (12) and the other end is provided with a side plate (13), and the top of the steel keel (11) is provided with several foot pedals (14). Support mechanism (2), the support mechanism (2) includes a top seat (21), the top end of the top seat (21) is fixedly connected to the bottom end of the steel keel (11), and a support column (22) is rotatably provided at the bottom end of the top seat (21); The limiting mechanism (3) is provided in two parts, and each limiting mechanism (3) includes two ear seats (31). The sides of the two ear seats (31) are fixedly connected to the top seat (21), and the two ear seats (31) are rotatably connected to a rotating plate (32). The top of the rotating plate (32) is provided with a rotating shaft (33), and the bottom is slidably installed with a limiting rod (34) extending into the support column (22).

2. The prefabricated staircase structure according to claim 1, characterized in that: The steel keel (11) is inclined, the bottom plate (12) is set at the inclined bottom end of the steel keel (11) and is set horizontally, the side plate (13) is set at the inclined top end of the steel keel (11) and is set vertically, and each foot pedal (14) is set horizontally.

3. A prefabricated staircase structure according to claim 1, characterized in that: The top of the top seat (21) is placed at two-thirds of the distance from the bottom of the steel keel (11) to the ground, and the top seat (21) is provided with a rotating shaft (23) that is rotatably connected to the support column (22).

4. A prefabricated staircase structure according to claim 1, characterized in that: The top of the support column (22) is provided with a chamfer (24) on the side facing the inside of the top seat (21), and a base plate (25) is provided at the bottom of the support column (22).

5. A prefabricated staircase structure according to claim 1, characterized in that: One end of the limiting rod (34) extends out of the outside of the rotating plate (32) and is constructed with a circular plate (35). The outer edge of the circular plate (35) is provided with a plurality of protrusions (36). A spring (37) is provided on the outer edge of the limiting rod (34) located between the rotating plate (32) and the circular plate (35).

6. A prefabricated staircase structure according to claim 5, characterized in that: The end of the limiting rod (34) away from the circular plate (35) extends into the support column (22) and is provided with two limiting strips (38). The end of the limiting rod (34) with the limiting strips (38) is provided with a limiting plate (39). The upper and lower sides of the limiting plate (39) are provided with through grooves for the limiting strips (38) to pass through. The side of the limiting strips (38) away from the circular plate (35) is symmetrically provided with two blind grooves for the limiting strips (38) to fit into.

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