Liftable elevator shaft horizontal protective door
By designing a liftable guide rail and limiting component structure in the elevator shaft, the problem of cumbersome lifting and lowering of the existing horizontal protective door in the elevator shaft is solved, and the stable lifting and lowering of the protective door is achieved, improving construction efficiency and safety.
Patent Information
- Application Number
- CN202520654441.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-09
AI Technical Summary
The existing elevator shaft horizontal safety door has a cumbersome and inefficient lifting process, which cannot meet the needs of frequent lifting during building construction.
Design a liftable elevator shaft horizontal safety door, which adopts a guide rail and limit component structure. The door is raised and lowered by a slider and limit hole. It is fixed to the wall with expansion bolts to ensure the stability and flexibility of the safety door.
This technology enables flexible raising and lowering of the protective door, preventing displacement and detachment, and improving construction efficiency and safety.
Smart Images

Figure CN223866147U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of elevator construction technology, specifically referring to a liftable horizontal protective door for elevator shafts. Background Technology
[0002] In the field of modern building construction, elevator shafts, as vital vertical transport channels for passengers and goods within buildings, are of paramount importance for construction safety. An elevator shaft is a space reserved within a building that vertically connects different floors. It is typically enclosed by reinforced concrete walls and is used to install elevator equipment, ensuring the safe and smooth operation of the elevator car between different floors.
[0003] During elevator shaft construction, to prevent accidental falls of personnel or objects and ensure the safety of workers on site, horizontal safety doors must be installed at the elevator shaft openings on each floor. However, the horizontal safety doors commonly found in the market have many inconveniences. Due to the large number of floors and varying construction schedules, the safety doors need to be frequently raised and lowered to meet construction demands. However, existing safety doors mostly use fixed or simple mechanical structures, resulting in a cumbersome and inefficient raising and lowering process. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes a liftable horizontal protective door for elevator shafts.
[0005] The technical solution adopted by this utility model is as follows: This utility model provides a liftable elevator shaft horizontal protective door, including a guide rail, a slider is slidably provided in the guide rail, a protective door is fixedly connected to one side of the slider, and multiple limiting holes are opened on the side wall of the guide rail, and limiting components can be detachably installed in the limiting holes.
[0006] Furthermore, a fixing plate is fixedly provided on one side of the guide rail, and an expansion bolt can be detachably installed on the fixing plate.
[0007] Furthermore, the limiting element is a steel nail.
[0008] The beneficial effects of this utility model by adopting the above structure are as follows:
[0009] The protective door is designed with a slot-type mechanism and guide rails are installed on the structural wall. When it needs to be opened, the protective door is raised and inserted into the limiting piece for fixation. When it is not needed, the limiting piece is removed and lowered to form protection. Guide rails are installed on both sides of the elevator shaft opening to prevent the protective door from shifting or falling off when it is raised or lowered. Attached Figure Description
[0010] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 This is a front view of a liftable elevator shaft horizontal protective door according to this utility model;
[0012] Figure 2 This is a schematic diagram of a liftable elevator shaft horizontal protective door structure according to the present invention;
[0013] Figure 3 for Figure 2 Enlarged view of part A in the middle.
[0014] The components include: 1. guide rail, 2. protective door, 3. slider, 4. limiting hole, 5. limiting component, 6. fixing plate, and 7. expansion bolt. Detailed Implementation
[0015] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.
[0016] like Figures 1-3 As shown, this utility model proposes a liftable elevator shaft horizontal protective door, including a guide rail 1, a fixing plate 6 fixedly provided on one side of the guide rail 1, an expansion bolt 7 detachably installed on the fixing plate 6, a slider 3 slidably provided inside the guide rail 1, a protective door 2 fixedly connected to one side of the slider 3, and multiple limiting holes 4 opened on the side wall of the guide rail 1, a limiting component 5 detachably installed in the limiting hole 4, the limiting component 5 being a steel nail.
[0017] In practical use, mark the positions of the fixing pieces 6 on the wall according to the design dimensions of the protective door 2 and the guide rail 1. Then, use an impact drill to drill holes in the wall and use expansion bolts 7 to fix the guide rail 1 to both sides of the elevator shaft opening. There are multiple limiting holes 4 on the guide rail. Install the limiting piece 5 through the limiting hole 4 to effectively position the protective door 2 and adjust the height of the protective door 2. Finally, confirm that the manual lifting and lowering of the protective door 2 is smooth and there is no derailment or jamming. At the same time, ensure that the limiting piece 5 can withstand the impact when the protective door 2 falls and effectively play its limiting role. The above is the overall working process of this utility model. Repeat this step next time you use it.
[0018] As can be seen from the above embodiments, the beneficial effects of this utility model are as follows:
[0019] The protective door is designed with a slot-type mechanism and guide rails are installed on the structural wall. When it needs to be opened, the protective door is raised and inserted into the limiting piece for fixation. When it is not needed, the limiting piece is removed and lowered to form protection. Guide rails are installed on both sides of the elevator shaft opening to prevent the protective door from shifting or falling off when it is raised or lowered.
[0020] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A liftable horizontal safety door for elevator shafts, characterized in that: Includes a guide rail (1), a slider (3) is slidably provided in the guide rail (1), a protective door (2) is fixedly connected to one side of the slider (3), and multiple limiting holes (4) are opened on the side wall of the guide rail (1), and limiting components (5) can be detachably installed in the limiting holes (4).
2. The liftable elevator shaft horizontal protective door according to claim 1, characterized in that: A fixing plate (6) is fixedly provided on one side of the guide rail (1), and an expansion bolt (7) can be detachably installed on the fixing plate (6).
3. A liftable elevator shaft horizontal protective door according to claim 2, characterized in that: The limiting component (5) is a steel nail.