预制楼梯安装结构
By using an adjustable nut structure and matching components, the problem of misalignment between the nut and the mounting hole during the installation of prefabricated stairs was solved, achieving an efficient and stable installation process and improving construction efficiency and structural stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA FIRST HIGHWAY ENGINEERING CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-17
AI Technical Summary
In the installation of existing precast stairs, the nuts and mounting holes are prone to misalignment, which increases the number of construction steps and makes the structure unstable, affecting the construction cycle and safety.
It adopts an adjustable nut structure and matching adjustment components, support platform and reinforcement components. Through the cooperation of bidirectional lead screw, threaded block and knob, the nut position can be flexibly adjusted and precisely adapted, enhancing the connection strength and stability.
It improves the adaptability and efficiency of prefabricated staircase installation, reduces on-site secondary processing procedures, enhances operational convenience and overall stability, and strengthens the durability and load-bearing capacity of the structure.
Smart Images
Figure CN224514610U_ABST
Abstract
Claims
1. A prefabricated stair mounting structure, comprising a main plate (1), two sets of adjusting assemblies (3) and two sets of reinforcing assemblies (5), two sets of supporting platforms (2) and a stair body (6), characterized in that: The stair body (6) is located on one side of the main board (1), the two sets of support platforms (2) are located on both sides of the stair body (6), the two sets of adjustment components (3) are located on the top of the two sets of support platforms (2), the two sets of reinforcement components (5) are located on the bottom of the stair body (6), and the two sets of support platforms (2) are fixedly connected to one side of the main board (1).
2. The pre-fabricated stair installation structure according to claim 1, characterized in that: The adjustment component (3) includes a mounting plate (301). Two sets of mounting plates (301) are fixedly connected to the bottom of both sides of the stair body (6). Grooves (302) are provided on both sides of the inner wall of the mounting plate (301). A bidirectional screw rod (303) is provided in one set of the grooves (302) through a rotating shaft. Two sets of threaded blocks (304) are threadedly connected to the surface of the bidirectional screw rod (303). Nuts (307) are fixedly connected to one side of each set of threaded blocks (304). A knob (310) is provided at the shaft end of the bidirectional screw rod (303).
3. The pre-fabricated stair installation structure according to claim 2, characterized in that: The bottom of the support platform (2) is provided with two sets of mounting holes (201), and each set of mounting holes (201) is threaded with a first stud (202). The first stud (202) is adapted to a nut (307). The stair body (6) is fixedly installed on the top of the support platform (2) by the first stud (202) and the nut (307).
4. The pre-fabricated stair installation structure according to claim 1, characterized in that: Both sets of adjustment components (3) are provided with a fixing plate (4) at the top, and both sets of fixing plates (4) are provided with a fixing groove (401) at the bottom, and the fixing groove (401) is provided with anti-slip texture.
5. The pre-fabricated stair installation structure according to claim 1, wherein: The reinforcement component (5) includes a fixing frame (501). Both sides of the inner wall of the fixing frame (501) are provided with screw holes (503). A second stud (502) is threaded into the screw hole (503). One end of the second stud (502) passes through the screw hole (503) and is threaded to the support platform (2). The fixing frame (501) is in contact with the stair body (6) and the first stud (202) respectively. The fixing frame (501) is fixedly installed at the bottom of the stair body (6) through the second stud (502).
6. The pre-fabricated stair installation structure according to claim 2, wherein: A set of grooves (302) have sliding grooves (306) on both sides of the inner wall. A slider (305) is slidably connected in the sliding groove (306). The slider (305) is fixedly connected to one side of the threaded block (304).
7. The pre-fabricated stair installation structure according to claim 2, wherein: Another set of grooves (302) is provided with a slide rod (308), and a slide plate (309) is slidably connected to the surface of the slide rod (308), and the slide plate (309) is fixedly connected to the surface of the nut (307).
8. The pre-fabricated stair installation structure according to claim 1, wherein: The surface of the stair body (6) is provided with a wear-resistant coating (7), which is a rubber material.
9. The pre-fabricated stair installation structure according to claim 2, wherein: A protective groove (312) is provided on one side of the mounting plate (301), and the knob (310) is located in the protective groove (312). A cover plate (311) is movably connected to the surface of the protective groove (312) via a hinge.