Fabricated prefabricated stair

Abstract

The utility model discloses an assembly type prefabricated stair. The assembly type prefabricated stair comprises a stair base body, a stair platform, a connecting base and a guardrail. The connecting mechanisms are arranged between the stair base body and the halfpace and between the stair base body and the connecting base and used for fixing the stair base body; a fixing mechanism; the detachable guardrail is arranged between the guardrail and the stair base bodies and used for installing the guardrail on the stair base bodies, the detachable guardrail is reasonable in structure, the safety of the stair can be improved, meanwhile, a plurality of stair base bodies can be spliced together according to actual needs, the overall length of the stair is increased, and the use requirements can be better met.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated staircase technology, specifically to an assembled prefabricated staircase. Background Technology

[0002] As part of prefabricated frame structures, precast concrete staircases serve as a primary escape route. During factory construction, elongated holes are pre-drilled at the bottom of the staircase, and reinforcing bars are pre-installed at the top. During on-site installation, the pre-drilled reinforcing bars are poured together with the stair landing slab, and the pre-drilled reinforcing bars in the lower stair beams are inserted into the elongated holes at the bottom of the staircase. This achieves a sliding connection between the precast staircase and the main structure. The precast staircase does not participate in the overall structural load-bearing, ensuring a smooth escape route. However, existing precast staircases are relatively cumbersome to produce, have low strength, and are inconvenient to install.

[0003] To address the aforementioned issues, a utility model patent with authorization announcement number CN208668816U discloses a novel prefabricated assembly staircase. This device improves the stability of the connection between the upper and lower pouring layers and the trapezoidal steel plate by welding second vertical ribs to both the upper and lower sides of the trapezoidal steel plate and providing anti-slip textures on both sides.

[0004] However, in actual use, the prefabricated staircase does not have a guardrail, which poses certain safety hazards. Furthermore, it can only be assembled into a staircase of a specified length, which reduces the practicality of the device and fails to meet the usage requirements. Summary of the Invention

[0005] The purpose of this utility model is to provide a prefabricated assembled staircase to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A prefabricated staircase includes: a staircase base, a tread, a connecting seat, and a handrail; a connecting mechanism disposed between the staircase base and the tread and between the staircase base and the connecting seat, for fixing the staircase base; and a fixing mechanism disposed between the handrail and the staircase base, for installing the handrail onto the staircase base.

[0008] As a preferred embodiment, the connecting mechanism includes a connecting block extending from the lower end of the stair base, connecting grooves being provided at corresponding positions of the stair platform and the connecting seat, the connecting block being inserted into the corresponding connecting groove, and a connecting rod being provided between the connecting block and the stair platform, with a connecting nut threaded onto the end of the connecting rod.

[0009] As a preferred embodiment, a connecting rod is also provided between the connecting plug and the connecting seat, and the end of the connecting rod passes through the connecting seat and the connecting plug and is screwed with a connecting nut.

[0010] As a preferred embodiment, the lower end of the connecting plug is provided with a connecting chamfer.

[0011] As a preferred embodiment, the lower end of the connecting seat is further provided with a support mechanism, the support mechanism including a support frame fixed to the lower end of the connecting seat, and a plurality of reinforcing rods are installed on the support frame.

[0012] As a preferred embodiment, the fixing mechanism includes several fixing slots opened on the stair base, and fixing holes are also opened on the stair base corresponding to the fixing slots. A connecting rod is provided at the lower end of the railing, and a fixing block is provided at the lower end of the connecting rod corresponding to the fixing slot. The fixing block is inserted into the fixing slot, and a fixing pin is inserted into the fixing hole. The end of the fixing pin extends into the fixing block.

[0013] As a preferred embodiment, the fixing slot is vertically arranged and the fixing hole is horizontally arranged.

[0014] Compared with existing technologies, the advantages of this utility model are: by setting a connecting mechanism, the stair base can be fixed to the stair tread, and the stair base can also be fixed to the connecting seat, thereby increasing the length of the staircase and better meeting actual installation needs. Simultaneously, by installing the handrail onto the stair base through the fixing mechanism, the safety of the staircase can be improved. This utility model has a reasonable structure, with detachable and installable handrails, which improves the safety of the staircase. Furthermore, multiple stair bases can be spliced ​​together according to actual needs, increasing the overall length of the staircase and better meeting usage requirements. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall three-dimensional structure of a prefabricated staircase;

[0016] Figure 2 This is a three-dimensional structural diagram of the base of a prefabricated staircase.

[0017] Figure 3 This is a first-view exploded structural diagram of the base of a prefabricated staircase.

[0018] Figure 4 This is a second-view exploded structural diagram of the base of a prefabricated staircase.

[0019] Figure 5 This is a three-dimensional structural diagram of the support mechanism of a prefabricated staircase.

[0020] In the diagram: 1. Staircase base; 11. Ladder; 12. Handrail; 13. Connecting rod; 14. Connecting seat; 2. Connecting mechanism; 21. Connecting block; 211. Connecting chamfer; 22. Connecting groove; 23. Connecting rod; 24. Connecting nut; 3. Fixing mechanism; 31. Fixing block; 32. Fixing pin; 33. Fixing slot; 34. Fixing hole; 4. Supporting mechanism; 41. Support frame; 42. Reinforcing rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Please refer to Figures 1-5 A prefabricated staircase includes: a staircase base 1, a stair tread 11, a connecting seat 14, and a handrail 12; a connecting mechanism 2, disposed between the staircase base 1 and the stair tread 11 and between the staircase base 1 and the connecting seat 14, for fixing the staircase base 1; and a fixing mechanism 3, disposed between the handrail 12 and the staircase base 1, for installing the handrail 12 on the staircase base 1.

[0023] The working principle of this utility model is as follows: By setting the connecting mechanism 2, the stair base 1 can be fixed on the stair platform 11, and the stair base 1 can also be fixed to the connecting seat 14, thereby increasing the length of the stair and better meeting the actual installation requirements. At the same time, by installing the guardrail 12 onto the stair base 1 through the fixing mechanism 3, the safety of the stair can be improved.

[0024] As a further embodiment, the connecting mechanism 2 includes a connecting block 21 extending from the lower end of the stair base 1. Connecting grooves 22 are provided at corresponding positions on the stair platform 11 and the connecting seat 14. The connecting block 21 is inserted into the corresponding connecting groove 22. A connecting rod 23 is also provided between the connecting block 21 and the stair platform 11, and a connecting nut 24 is threaded onto the end of the connecting rod 23. In this embodiment, one stair platform 11 is fixed to the ground, and the other stair platform 11 is fixed to the building.

[0025] The working principle of the connecting mechanism 2 is as follows: When connecting, insert the connecting block 21 at the lower end of the stair base 1 into the connecting groove 22 of the stair platform 11, then insert the connecting rod 23 through the stair platform 11 and the connecting block 21, and then screw the connecting nut 24 on the end of the connecting rod 23 to complete the connection.

[0026] As a further embodiment, a connecting rod 23 is also provided between the connecting plug 21 and the connecting seat 14. The end of the connecting rod 23 passes through the connecting seat 14 and the connecting plug 21 and is screwed with a connecting nut 24. A connecting chamfer 211 is provided at the lower end of the connecting plug 21.

[0027] By setting the connecting chamfer 211, the square tube connecting block 21 is inserted into the connecting groove 22. When it is necessary to splice and fix the adjacent stair base 1, the connecting block 21 at the lower end of the adjacent stair base 1 is inserted into the corresponding connecting groove 22. Then, the connecting rod 23 passes through the connecting seat 14 and the corresponding connecting block 21. Finally, the connecting nut 24 is screwed on to complete the installation.

[0028] As a further embodiment, a support mechanism 4 is also provided at the lower end of the connecting seat 14. The support mechanism 4 includes a support frame 41 fixed to the lower end of the connecting seat 14, and several reinforcing rods 42 are installed on the support frame 41. By setting the support frame 41, the connecting seat 14 can be supported, thereby improving the support strength at the stair joint.

[0029] As a further embodiment, the fixing mechanism 3 includes several fixing slots 33 opened on the stair base 1, and fixing holes 34 are also opened on the stair base 1 at the positions corresponding to the fixing slots 33. A connecting rod 23 is provided at the lower end of the guardrail 12, and a fixing block 31 is provided at the lower end of the connecting rod 23 at the position corresponding to the fixing slot 33. The fixing block 31 is inserted into the fixing slot 33, and a fixing pin 32 is inserted into the fixing hole 34. The end of the fixing pin 32 extends into the fixing block 31. The fixing slot 33 is set vertically, and the fixing hole 34 is set horizontally.

[0030] The working principle of the fixing mechanism 3 is as follows: When fixing, the fixing block 31 is inserted into the corresponding fixing slot 33, and then the fixing pin 32 is inserted into the fixing hole 34, and the end of the fixing pin 32 extends into the fixing block 31, thus completing the installation and fixing work, which facilitates the installation of the guardrail 12 and can improve the safety of the stairs.

[0031] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

Claims

1. A prefabricated, assembled staircase, characterized in that, include: Staircase base (1), stair platform (11), connecting seat (14) and handrail (12); The connecting mechanism (2) is set between the stair base (1) and the stair platform (11) and between the stair base (1) and the connecting seat (14) to fix the stair base (1); Fixing mechanism (3); set between the guardrail (12) and the stair base (1), for installing the guardrail (12) on the stair base (1).

2. The prefabricated staircase according to claim 1, characterized in that: The connecting mechanism (2) includes a connecting plug (21) extending from the lower end of the stair base (1), and connecting grooves (22) are provided at corresponding positions of the stair platform (11) and the connecting seat (14). The connecting plug (21) is inserted into the corresponding connecting groove (22). A connecting rod (23) is also provided between the connecting plug (21) and the stair platform (11). A connecting nut (24) is threaded onto the end of the connecting rod (23).

3. A prefabricated staircase according to claim 2, characterized in that: A connecting rod (23) is also provided between the connecting plug (21) and the connecting seat (14). The end of the connecting rod (23) passes through the connecting seat (14) and the connecting plug (21) and is screwed with a connecting nut (24).

4. A prefabricated staircase according to claim 3, characterized in that: The lower end of the connecting plug (21) is provided with a connecting chamfer (211).

5. A prefabricated staircase according to claim 4, characterized in that: The lower end of the connecting seat (14) is also provided with a support mechanism (4), which includes a support frame (41) fixed to the lower end of the connecting seat (14) and a number of reinforcing rods (42) are installed on the support frame (41).

6. A prefabricated staircase according to claim 5, characterized in that: The fixing mechanism (3) includes several fixing slots (33) opened on the stair base (1). The stair base (1) is also provided with fixing holes (34) at the positions corresponding to the fixing slots (33). A connecting rod (23) is provided at the lower end of the railing (12). A fixing block (31) is provided at the lower end of the connecting rod (23) at the position corresponding to the fixing slot (33). The fixing block (31) is inserted into the fixing slot (33). A fixing pin (32) is inserted into the fixing hole (34). The end of the fixing pin (32) extends into the fixing block (31).

7. A prefabricated staircase according to claim 6, characterized in that: The fixing slot (33) is set vertically, and the fixing hole (34) is set horizontally.

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