A prefabricated staircase

Abstract

This application discloses a prefabricated staircase, comprising: a platform stage; and two overlapping sections connected to both ends of the platform stage. Each overlapping section has a first inclined surface, a second inclined surface, and a third inclined surface. The first inclined surface is located at the end of the overlapping section opposite to the platform stage. The second and third inclined surfaces are opposite each other and perpendicular to the vertical plane of each step of the platform stage. The first, second, and third inclined surfaces gradually slope inward from top to bottom. Multiple first anchoring holes are provided on the top surface of the overlapping sections. The resting platform and platform beam are each provided with a fourth, fifth, and sixth inclined surface, respectively adapted to the first, second, and third inclined surfaces, as well as multiple second anchoring holes corresponding to the positions of the first anchoring holes. This prefabricated staircase enables rapid and precise positioning on the construction site, reducing manual intervention and error accumulation, and improving assembly efficiency and structural stability.

Description

Technical Field

[0001] This application relates to the field of staircase technology, and more particularly to a prefabricated assembled staircase. Background Technology

[0002] In prefabricated building systems, prefabricated stairs are a key element in improving construction efficiency and standardization. Currently, traditional prefabricated stairs mostly use grouting installation, where high-strength cement mortar or non-shrink grout is injected through pre-reserved grouting channels after the components are in place, achieving a tight connection between the stair components and the platform slab or floor structure. This method can ensure the load-bearing capacity and integrity of the structure to a certain extent.

[0003] However, most existing prefabricated staircases are poorly designed in terms of their guide and positioning structures, often relying on manual alignment or using only unidirectional limiting measures. This makes it difficult to guarantee installation accuracy and efficiency, especially when the staircase components are heavy or the installation space is limited. Utility Model Content

[0004] This application provides a prefabricated staircase, which solves the technical problem that existing prefabricated staircases only use unidirectional limiting measures or rely on manual alignment during installation.

[0005] This application provides an assembly-type prefabricated staircase, comprising: a platform stage; and two overlapping sections, the two overlapping sections being respectively connected to both ends of the platform stage. Each overlapping section has a first inclined surface, a second inclined surface, and a third inclined surface. The first inclined surface is located at the end of the overlapping section opposite to the platform stage. The second and third inclined surfaces are opposite to each other and perpendicular to the vertical surface of each step of the platform stage. The first, second, and third inclined surfaces gradually slope inward from top to bottom. The top surface of the overlapping section has multiple first anchoring holes. The resting platform and platform beam are each provided with a fourth, fifth, and sixth inclined surface respectively adapted to the first, second, and third inclined surfaces, as well as multiple second anchoring holes corresponding to the positions of the multiple first anchoring holes.

[0006] In one possible implementation, the overlapping section is provided with a first grouting hole, which is arranged in a horizontal direction, and the two ends of the first grouting hole are located on the second inclined plane and the third inclined plane, respectively; wherein, the rest platform and the platform beam are provided with a second grouting hole and a third grouting hole corresponding to the two ends of the first grouting hole.

[0007] In one possible implementation, the second grouting hole and the third grouting hole are elongated holes, and the length direction of the elongated holes is the horizontal movement direction of the overlapping section during the installation process.

[0008] In one possible implementation, the inner walls of the first grouting hole, the second grouting hole, and the third grouting hole are all provided with threads.

[0009] In one possible implementation, the inclination angles of the first inclined plane, the second inclined plane, and the third inclined plane are 45°.

[0010] In one possible implementation, the two overlapping segments are integrally connected to both ends of the stage.

[0011] The technical solutions provided in this application embodiment have at least the following technical effects: This application provides a prefabricated staircase, which includes a landing platform and two overlapping sections. The first, second, and third inclined surfaces of the overlapping sections guide the installation process of the prefabricated staircase. Through three sets of mating relationships—the first and fourth inclined surfaces, the second and fifth inclined surfaces, and the third and sixth inclined surfaces—the prefabricated staircase is limited in three directions. After the two overlapping sections are respectively attached to the landing platform and the platform beam, anchor rods are used to pass through the first and second anchor holes to fix the prefabricated staircase to the landing platform and the platform beam. Therefore, this prefabricated staircase can achieve rapid and precise positioning on the construction site, reducing manual intervention and error accumulation, and improving assembly efficiency and structural stability. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments of this application or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A structural schematic diagram of the prefabricated staircase, rest platform, and platform beam provided in an embodiment of this application; Figure 2 A schematic diagram of a prefabricated staircase installed on a rest platform and platform beam, as provided in an embodiment of this application.

[0014] Figure reference numerals: 10 - Platform stage; 20 - Overlap section; 21 - First inclined plane; 22 - Second inclined plane; 23 - Third inclined plane; 24 - First anchor hole; 25 - First grouting hole; 30a - Resting platform; 30b - Platform beam; 31 - Fourth inclined plane; 32 - Fifth inclined plane; 33 - Sixth inclined plane; 34 - Second anchor hole; 35 - Second grouting hole; 36 - Third grouting hole. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. The term "multiple" refers to a quantity of two or more. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0017] This application provides a prefabricated assembled staircase, such as... Figure 1 and Figure 2 As shown, the prefabricated staircase includes a platform stage 10 and two overlapping sections 20.

[0018] Two overlapping sections 20 are respectively connected to the two ends of the platform stage 10. The overlapping section 20 has a first inclined surface 21, a second inclined surface 22, and a third inclined surface 23. The first inclined surface 21 is located at the end of the overlapping section 20 away from the platform stage 10. The second inclined surface 22 and the third inclined surface 23 are arranged opposite each other and perpendicular to the vertical surface of each step of the platform stage 10. The first inclined surface 21, the second inclined surface 22, and the third inclined surface 23 gradually slope inward from top to bottom. A plurality of first anchoring holes 24 are provided on the top surface of the overlapping section 20. The rest platform 30a and the platform beam 30b are each provided with a fourth inclined surface 31, a fifth inclined surface 32, and a sixth inclined surface 33 respectively adapted to the first inclined surface 21, the second inclined surface 22, and the third inclined surface 23, as well as a plurality of second anchoring holes 34 corresponding to the positions of the plurality of first anchoring holes 24.

[0019] When installing the prefabricated staircase, the two overlapping sections 20 are aligned with the rest platform 30a and the platform beam 30b, respectively. The first inclined surface 21, the second inclined surface 22, and the third inclined surface 23 are used to guide the placement of the overlapping sections 20, so that the overlapping sections 20 can be accurately placed in the preset installation position. At this time, the first inclined surface 21 is close to the fourth inclined surface 31, the second inclined surface 22 is close to the fifth inclined surface 32, the third inclined surface 23 is close to the sixth inclined surface 33, and the multiple first anchor holes 24 correspond one-to-one with the multiple second anchor holes 34. Anchor bolts and nuts are used to fix the two overlapping sections 20 to the rest platform 30a and the platform beam 30b, respectively.

[0020] The first inclined surface 21, the second inclined surface 22, and the third inclined surface 23 of the overlapping section 20 are used to guide the installation process of the prefabricated staircase. The three sets of cooperation relationships between the first inclined surface 21 and the fourth inclined surface 31, the second inclined surface 22 and the fifth inclined surface 32, and the third inclined surface 23 and the sixth inclined surface 33 limit the prefabricated staircase in three directions. Therefore, the prefabricated staircase can quickly achieve precise positioning on the construction site, reduce manual intervention and error accumulation, and improve the overall assembly efficiency and structural stability.

[0021] For example, the inclination angles of the first inclined plane 21, the second inclined plane 22 and the third inclined plane 23 are 45°, and correspondingly, the inclination angles of the fourth inclined plane 31, the fifth inclined plane 32 and the sixth inclined plane 33 are 45°.

[0022] Continue to refer to Figure 1 The overlapping section 20 is provided with a first grouting hole 25, which is set in the horizontal direction, and the two ends of the first grouting hole 25 are located on the second inclined surface 22 and the third inclined surface 23, respectively; wherein, the rest platform 30a and the platform beam 30b are provided with a second grouting hole 35 and a third grouting hole 36 corresponding to the two ends of the first grouting hole 25.

[0023] After the prefabricated staircase is placed, the two overlapping sections 20 form three-way limiting relationships with the platform beam 30b and the rest platform 30a, respectively, allowing the two ends of the first grouting hole 25 to be more accurately aligned with the second grouting hole 35 and the third grouting hole 36. High-strength, non-shrink grout is injected through the second grouting hole 35 or the third grouting hole 36. After the grout solidifies, the two overlapping sections 20 form a stable connection with the platform beam 30b and the rest platform 30a, respectively.

[0024] like Figure 1 and Figure 2As shown, the second grouting hole 35 and the third grouting hole 36 are elongated holes, with the length direction of the elongated holes corresponding to the horizontal movement direction of the overlapping section 20 during installation. Setting the second grouting hole 35 and the third grouting hole 36 as elongated holes compensates for errors in the horizontal movement direction of the prefabricated staircase during installation, ensuring that the two ends of the first grouting hole 25 can be aligned with the second grouting hole 35 and the third grouting hole 36, thus ensuring that the grout can be injected smoothly.

[0025] Specifically, the inner walls of the first grouting hole 25, the second grouting hole 35, and the third grouting hole 36 are all provided with threads.

[0026] After high-strength, non-shrink grout is injected into the first grouting hole 25, the second grouting hole 35, and the third grouting hole 36, the threads enable a more secure connection between the grout and the overlapping section 20, between the grout and the platform beam 30b, and between the grout and the rest platform 30a, thereby ensuring that the two overlapping sections 20 can form a more stable connection with the rest platform 30a and the platform beam 30b.

[0027] Furthermore, the two overlapping sections 20 are integrally connected to both ends of the platform stage 10, making the connection between the two overlapping sections 20 and the platform stage 10 relatively firm. During the production of this prefabricated staircase, the platform stage 10 and the two overlapping sections 20 are cast and formed simultaneously.

[0028] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.

[0029] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. A fabricated precast stair, characterized by, include: Taiwan stage; as well as Two overlapping sections are respectively connected to both ends of the platform stage, and the overlapping sections have a first inclined surface, a second inclined surface, and a third inclined surface; Wherein, the first inclined surface is located at the end of the overlapping section away from the platform stage, the second inclined surface and the third inclined surface are arranged opposite to each other and perpendicular to the vertical surface of each step of the platform stage, and the first inclined surface, the second inclined surface and the third inclined surface gradually slope inward from top to bottom; The top surface of the overlapping section is provided with multiple first anchoring holes; The rest platform and platform beam are each provided with a fourth, fifth, and sixth inclined plane that are adapted to the first, second, and third inclined planes, respectively, as well as a plurality of second anchor holes corresponding to the positions of the plurality of first anchor holes.

2. The prefabricated staircase according to claim 1, characterized in that, The overlapping section is provided with a first grouting hole, which is arranged in a horizontal direction, and the two ports of the first grouting hole are located on the second inclined surface and the third inclined surface, respectively. The rest platform and the platform beam are both provided with second and third grouting holes corresponding to the two ends of the first grouting hole.

3. The prefabricated staircase according to claim 2, characterized in that, The second grouting hole and the third grouting hole are elongated holes, and the length direction of the elongated holes is the horizontal movement direction of the overlapping section during the installation process.

4. The prefabricated staircase according to claim 2 or 3, characterized in that, The inner walls of the first grouting hole, the second grouting hole, and the third grouting hole are all threaded.

5. The prefabricated staircase according to claim 1, characterized in that, The inclination angles of the first inclined plane, the second inclined plane, and the third inclined plane are 45°.

6. The prefabricated staircase according to claim 1, characterized in that, The two overlapping sections are integrally connected to both ends of the platform stage.

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