装配式楼梯销键预埋及精准调平一体化装置
By pre-embedding adjusting screws and key bolts on prefabricated stairs, and combining this with a laser level for elevation adjustment, the problems of leveling accuracy and efficiency in prefabricated stairs were solved, achieving highly efficient construction results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG DEJIAN GRP CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-17
AI Technical Summary
Quality control of leveling during the installation of prefabricated stairs is difficult, and conventional methods suffer from low efficiency, poor accuracy, and inconvenience.
The system adopts a prefabricated stair pin and key pre-embedded and precision leveling integrated device. By pre-embedding adjusting screws and pin bolts on the support platform, high-precision leveling is achieved by using threaded connections and rotating adjusting plates, and elevation adjustment is carried out in conjunction with a laser level.
It enables high-precision and rapid leveling operations, improves construction efficiency, reduces material and labor costs, and ensures construction quality.
Smart Images
Figure CN224514683U_ABST
Abstract
Claims
1. An assembled stair pin key pre-burying and precise leveling integrated device, characterized in that, include: A prefabricated staircase includes a tread section, a first platform section, and a second platform section. The two ends of the tread section are fixedly connected to one end of the first platform section and one end of the second platform section, respectively. The first platform section and the second platform section are provided with a plurality of key holes, which are respectively arranged along the vertical direction of the top surface of the first platform section or the second platform section. A leveling assembly includes adjusting screws and key bolts. Several adjusting screws are pre-embedded on two support platforms that cooperate with the first and second platform sections. The adjusting screws are perpendicular to the support platforms. Threaded holes are provided inside the adjusting screws along their extension direction. Several wing plates are fixedly installed on the outer wall of the adjusting screws. The top surface of the adjusting screws mates with the top surface of the support platforms. An adjusting plate is fixedly installed in the middle of the key bolts. The adjusting plate is perpendicular to the key bolts. The key bolts on both sides of the adjusting plate have threaded portions and key portions, respectively. The threaded portions are threaded into the threaded holes, and the key portions are inserted into the key holes. The bottom surfaces of the first and second platform sections abut against the top surfaces of the several adjusting plates.
2. The assembled stair pin key pre-burying and precision leveling integrated device of claim 1, wherein, The bottom of the adjusting screw is provided with a fixing plate, which is vertically fixed to the adjusting screw. The top edge of the fixing plate is provided with several fixing holes, which are fixedly connected to the bottom template of the support platform by screws.
3. The assembled stair pin key pre-burying and precision leveling integrated device according to claim 1, characterized in that, Several of the aforementioned wing plates are respectively fixedly and perpendicularly to the outer wall of the adjusting spool.
4. The assembled stair pin key pre-burying and precision leveling integrated device of claim 3, wherein, The number of the wing plates is 2 to 5, and several of the wing plates are evenly distributed on the adjusting spool.
5. The assembled stair pin key pre-burying and precision leveling integrated device according to claim 1, characterized in that, The adjusting plate has a welding hole in the middle, and the key bolt passes through the welding hole and is welded to the adjusting plate.
6. The assembled stair pin key pre-burying and precision leveling integrated device of claim 5, wherein, The upper and lower sides of the welding hole are respectively fixedly connected to the key bolt by a weld, and the height of the weld is not less than 4mm.
7. The assembled stair pin key pre-burying and precision leveling integrated device of claim 1, wherein, The number of adjusting wire bobs is matched with the number of key holes, and the positions of several adjusting wire bobs are respectively matched with the positions of several key holes.
8. The assembled stair pin key pre-burying and precision leveling integrated device of claim 1, wherein, The diameter of the key hole matches the diameter of the key portion. The adjusting plate is square, and the difference between the side length of the adjusting plate and the diameter of the key hole is not less than 30mm.
9. The assembled stair pin key pre-burying and precision leveling integrated device of claim 1, wherein, The steps of the tread section are provided with several hoisting holes, and one side of the steps of the tread section is provided with several handrail reserved holes.