CN111827596A - Detachable prefabricated staircase and production and installation method thereof - Google Patents

Abstract

The invention discloses a detachable prefabricated staircase and a production and installation method thereof, wherein the staircase comprises a separated type step plate and a step structure, at least two bolt holes are reserved on the surface of the step plate, angle steel is arranged at the bottom of the step structure and is fixed on the step plate through bolts arranged in the bolt holes, and the step structure is clamped in the angle steel along the surface of the step plate; the step plate and the step structure are prefabricated separately, so that the using amount of the die is greatly reduced, the using turnover times of the die are improved, and the using cost of the die is greatly reduced; and because the structure of marking time has the function of dismantling, consequently in the use afterwards, even the structure of marking time has the damage, also can be to its pointed substitution, can not cause the influence to whole stair, also can save the later maintenance cost of stair.

Description

Detachable prefabricated staircase and production and installation method thereof

Technical Field

The invention relates to the technical field of building structures, in particular to a detachable prefabricated staircase and a production and installation method thereof.

Background

In the prefabricated building, prefabricated staircase is a very common component, and the stair is prefabricated than cast in situ convenient and fast, and the prefabricated effect of stair is better than cast in situ, and the cost is also lower than cast in situ. However, the existing mould for producing the prefabricated staircase in the component factory is very complex, the mould needs to make the shape of the whole staircase, especially the step structure of the staircase needs a large number of steel moulds for splicing, and the number of the required moulds is very large if the staircase is of a plurality of types. And some projects have low standardization degree, the stairs have more types and less quantity, the mould sales volume is very large, the mould is completely wasted after use, and the cost is greatly wasted.

Disclosure of Invention

The invention aims to provide a detachable prefabricated staircase and a production and installation method thereof, which are used for solving the problems in the prior art, saving a large number of moulds, ensuring that the step structure of the detachable prefabricated staircase has high standardization degree, and ensuring that the moulds can be repeatedly used.

The invention provides a detachable prefabricated staircase which comprises a separated stair board (1) and a step structure (2), wherein at least two bolt holes are reserved in the surface of the stair board (1), angle steel (4) is arranged at the bottom of the step structure (2), the angle steel (4) is fixed on the stair board (1) through bolts (3) arranged in the bolt holes, and the step structure (2) is clamped in the angle steel (4) along the surface of the stair board (1).

It can also be preferred that both ends of the ladder plate (1) are respectively provided with a horizontal section (4), and the horizontal sections (4) are erected on the ear-picking structures (6) of the cast-in-situ ladder beam (5).

It is also preferred that the distance between the centre points of the bolt holes in each row is equal to the length of the ramp surface of the tread structure (2).

It is also preferred that the centre axis of the bolt hole is perpendicular to the plate surface of the step plate (1).

It may also be preferred that the length of the tread structure (2) is equal to the width of the tread (1).

It is also preferable that the two sides of the fixed position of the angle steel (4) on the step structure (2) are respectively provided with a tongue-and-groove (7).

It is also preferable that the length and width of the tongue-and-groove (7) are equal to the thickness and length of the angle iron (4), respectively.

It is also preferable that operation holes are reserved on two sides of the fixed position of the angle steel (4) on the ladder plate (1).

In another aspect, the present invention provides a method for manufacturing and installing a detachable prefabricated staircase, comprising the steps of,

the step (1) is transported to a construction site and lifted;

then the step structures (2) are sequentially installed from bottom to top;

when the step structure (2) is installed, the angle steel (4) is fixed on the step plate (1) through the bolts (3) arranged in the bolt holes, and then the step structure (2) is clamped in the angle steel (4) along the plate surface of the step plate (1).

The invention has the following advantages:

according to the detachable prefabricated staircase and the production and installation method thereof, the stair plates and the step structures are prefabricated separately, so that the using amount of the mould is greatly reduced, the using turnover times of the mould are improved, and the using cost of the mould is greatly reduced; and because the structure of marking time has the function of dismantling, consequently in the use afterwards, even the structure of marking time has the damage, also can be to its pointed substitution, can not cause the influence to whole stair, also can save the later maintenance cost of stair.

Drawings

Fig. 1 is a schematic structural view of the detachable prefabricated staircase of the invention.

Fig. 2 is a schematic view of the step structure of the detachable prefabricated staircase of the invention.

Fig. 3 is a schematic structural view of a reserved bolt hole of the detachable prefabricated staircase.

In the figure, 1 is a ladder plate, 2 is a step structure, 3 is a bolt, 4 is angle steel, 5 is a cast-in-place ladder beam, 6 is a lug structure, and 7 is a tongue-and-groove.

Detailed Description

The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Example 1

The utility model provides a can dismantle prefabricated staircase, as shown in fig. 1 to 3, including the step 1 of disconnect-type and mark time structure 2, reserve on the face of step 1 and have two at least bolt holes, mark time the bottom of structure 2 and be provided with angle steel 4, angle steel 4 is through setting up bolt 3 in the bolt hole is fixed on step 1, and mark time structure 2 establishes in angle steel 4 along the face card of step 1.

The production and installation method of the detachable prefabricated staircase comprises the following steps,

conveying the step plate 1 to a construction site and completing hoisting;

then the step structures 2 are sequentially installed from bottom to top;

when the stepping structure 2 is installed, the angle steel 4 is fixed on the step plate 1 through the bolts 3 arranged in the bolt holes, and then the stepping structure 2 is clamped in the angle steel 4 along the surface of the step plate 1.

According to the detachable prefabricated staircase and the production and installation method thereof, the step structure 2 and the step plate 1 are prefabricated separately, and the step plate 1 is prefabricated and can be directly used as a flat die, so that a large number of dies can be saved, and the dies cannot be wasted. Meanwhile, the step structure 2 is prefabricated separately, and as the standardization degree of the step structure 2 is very high, the size of the step structure 2 is basically fixed as a common residential project, a set of moulds can be reused basically and continuously until the moulds are damaged. After the step 1 and the structure 2 of marking time produced like this, can fix the structure 2 of marking time on step 1 through an angle steel 4 mounting, then realized the whole function of stair.

Example 2

The utility model provides a can dismantle prefabricated staircase, is similar with embodiment 1, and the difference is that 1 both ends of step are provided with a horizontal segment 4 respectively, and horizontal segment 4 sets up on the ear structure 6 of choosing of cast-in-place ladder beam 5. The bolt holes on the ladder plate 1 are uniformly distributed in at least two rows, and the number of the bolt holes in each row is at least three. The distance between the center points of the bolt holes in each row is equal to the length of the inclined surface of the step structure 2. The central axis of the bolt hole is vertical to the plate surface of the step plate 1. The length of the tread structure 2 is equal to the width of the step 1. The two sides of the fixed position of the angle steel 4 on the stepping structure 2 are respectively provided with a rabbet 7. The length and width of the tongue-and-groove 7 are respectively equal to the thickness and length of the angle iron 4. Operation holes are reserved on two sides of the fixed position of the step plate 1 and the angle steel 4.

It can also be specific that the length of the horizontal section 4 is not less than 120mm, and the thickness of the step plate 1 is not less than 120 mm. The depth of the bolt hole is not less than 50 mm. The cross section of the stepping structure 2 is in the shape of a right triangle. The included angle degree formed by two sides of the angle steel 4 is equal to the included angle degree of the two rabbet 7 positions of the step structure 2, the operation hole can be a round hole, the depth of the round hole is equal to 1/2 of the thickness of the angle steel 4, and the depth of the round hole is equal to the thickness of the bolt head of the bolt 3, so that the bolt head does not protrude and is exposed out of the operation hole.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (9)

1. The utility model provides a can dismantle prefabricated staircase, includes disconnect-type step (1) and mark time structure (2), its characterized in that, has two at least bolt holes on the face of step (1) in advance, and the bottom of marking time structure (2) is provided with angle steel (4), and angle steel (4) are in through setting up bolt (3) in the bolt hole are fixed on step (1), and mark time structure (2) are established in angle steel (4) along the face card of step (1).

2. A dismountable prefabricated staircase according to claim 1, characterized in that two ends of the ladder plate (1) are respectively provided with a horizontal section (4), and the horizontal sections (4) are erected on the ear-picking structures (6) of the cast-in-situ ladder beam (5).

3. The collapsible prefabricated staircase of claim 1, characterized in that the distance between the centre points of the bolt holes of each row is equal to the length of the slope of the tread structure (2).

4. Demountable prefabricated staircase according to claim 1, wherein the central axis of said bolt holes is perpendicular to the plate surface of the tread (1).

5. A demountable prefabricated staircase according to claim 1, wherein the length of the tread structure (2) is equal to the width of the tread (1).

6. The detachable prefabricated staircase according to claim 1, characterized in that the two sides of the fixed position of the angle iron (4) on the step structure (2) are respectively provided with a rabbet (7).

7. Detachable prefabricated staircase according to claim 6, characterised in that the length and width of the tongue-and-groove (7) are equal to the thickness and length of the angle iron (4), respectively.

8. A detachable prefabricated staircase according to claim 1, characterised in that the ladder boards (1) are provided with operating holes on both sides at the positions where they are fixed to the angle steel (4).

9. A method for producing and installing a detachable prefabricated staircase according to any one of the claims 1-8, characterized in that it comprises the following steps,

the step (1) is transported to a construction site and lifted;

then the step structures (2) are sequentially installed from bottom to top;

when the step structure (2) is installed, the angle steel (4) is fixed on the step plate (1) through the bolts (3) arranged in the bolt holes, and then the step structure (2) is clamped in the angle steel (4) along the plate surface of the step plate (1).

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