A device for in-building mechanical elevator shaft protection
By using rigid protective components connected to the gearbox and rack of the limit assembly in the elevator shaft, the problem of unstable protective facilities during elevator shaft construction was solved, thus improving safety and economic benefits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE THIRD CONSTR OF CHINA CONSTR EIGHTH ENG BUREAU
- Filing Date
- 2025-07-29
- Publication Date
- 2026-08-04
AI Technical Summary
During the construction of existing elevator shafts, the edge protection facilities are unstable, posing safety hazards and failing to effectively prevent falls from heights. Furthermore, the protection facilities are easily dismantled during construction, affecting construction safety.
The system combines rigid protective components with limiting components, and uses a sliding connection between a gearbox and a rack to ensure that the protective components are stably connected to the elevator shaft doorway. The meshing transmission of the gears and racks enables the controllable movement of the protective components, thereby improving the stability and compliance of the protection.
It significantly reduces the risk of falls during construction, ensures that protective facilities are not easily dismantled, improves construction safety and economic efficiency, and enhances the stability and compliance of protective facilities.
Smart Images
Figure CN224591842U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator shaft protection technology, specifically a device for the protection of mechanical elevator shafts within a building. Background Technology
[0002] During building construction, elevator shafts gradually rise along with the main structure. Due to elevator installation or the construction of infill walls, there are safety hazards such as the arbitrary removal of edge protection. Securely fixing edge protection is a key measure to prevent falls from heights.
[0003] Unsafe conditions of protective equipment directly weaken the effectiveness of edge protection and can even turn it into a safety hazard. Strict control must be exercised throughout the entire process, from design and material selection to installation, inspection, and maintenance, to ensure that protective facilities are always in a safe and reliable state in order to truly prevent falls and ensure safety. However, if the protective facilities themselves are unsafe (such as damaged, loose, or made of substandard materials), they will not only fail to provide effective protection but may also increase the risk of accidents. Utility Model Content
[0004] In view of the above-mentioned prior art, this utility model proposes a device for the protection of mechanical elevator shafts within a building.
[0005] This utility model provides a device for protecting mechanical elevator shafts within a building, comprising a rigid protective component. Both sides of the rigid protective component are connected to the elevator shaft doorway via limiting components. The limiting components include an upper gearbox and a lower gearbox disposed at the top and bottom of both sides of the rigid protective component. The top and bottom of the elevator shaft doorway are respectively provided with an upper limiting groove and a lower limiting groove. The upper gearbox and the lower gearbox are slidably connected to the upper limiting groove and the lower limiting groove, respectively. An upper gear is disposed on the upper gearbox, and a lower gear is disposed on the lower gearbox. An upper rack and a lower rack are respectively disposed at the top and bottom of the elevator shaft doorway, and the upper gear and the lower gear are meshed with the upper rack and the lower rack, respectively.
[0006] Preferably, both the upper limit slide and the lower limit slide are connected to the elevator shaft door opening by a number of expansion bolts.
[0007] Preferably, the upper gearbox is slidably connected to the upper limit groove via two upper pulleys, and the lower gearbox is slidably connected to the lower limit groove via two lower pulleys.
[0008] Preferably, the upper gearbox and the lower gearbox are respectively provided with an upper rocker handle and a lower rocker handle, the upper rocker handle being used to rotate the upper gear and the lower rocker handle being used to rotate the lower gear.
[0009] Compared to existing technologies, the beneficial effects of this utility model are as follows: This utility model proposes a device for protecting mechanical elevator shafts within a building. Through physical barriers, it significantly reduces the risk of falls, ensures that vertical edge openings are not easily dismantled by construction workers, and simultaneously improves compliance, efficiency, and economic benefits. This utility model ensures the stability of the edge protection components while also leveraging their reusability to achieve better economic benefits. Attached Figure Description
[0010] Figure 1 This is a plan view of a device for protecting mechanical elevator shafts within a floor, as described in an embodiment of this utility model.
[0011] Figure 2 This is a partial structural schematic diagram of the device for protecting mechanical elevator shafts within a floor, as described in an embodiment of this utility model.
[0012] Figure 3 This is a schematic diagram of the upper limit slide and the lower limit slide in an embodiment of the present invention.
[0013] In the diagram, 1 is a rigid protective component; 2 is an upper gearbox; 3 is an upper limit slide groove; 4 is a lower limit slide groove; 5 is an upper pulley; 6 is an upper gear; 7 is an upper rack; 8 is an upper crank handle; and 9 is an expansion bolt. Detailed Implementation
[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0015] Example: Figure 1-3 The device shown is for the protection of a mechanical elevator shaft in a floor, including a rigid protective component 1. Both sides of the rigid protective component 1 are connected to the elevator shaft door opening through limiting components. The limiting components include an upper gearbox 2 and a lower gearbox disposed at the top and bottom of both sides of the rigid protective component 1.
[0016] Furthermore, the top and bottom of the elevator shaft doorway are respectively provided with an upper limit slide groove 3 and a lower limit slide groove 4. Both the upper limit slide groove 3 and the lower limit slide groove 4 are connected to the elevator shaft doorway by several expansion bolts 9, which are spaced 1500mm apart. The upper gearbox 2 is slidably connected to the upper limit slide groove 3 by two upper pulleys 5, and the lower gearbox is slidably connected to the lower limit slide groove 4 by two lower pulleys.
[0017] Furthermore, the upper gearbox 2 is equipped with an upper gear 6, and the lower gearbox is equipped with a lower gear. The top and bottom of the elevator shaft doorway are respectively equipped with an upper rack 7 and a lower rack, with the upper gear 6 and lower gear meshing with the upper rack 7 and lower rack, respectively. The upper gearbox 2 and lower gearbox are respectively equipped with an upper crank handle 8 and a lower crank handle. The upper crank handle 8 is used to rotate the upper gear 6, and the lower crank handle is used to rotate the lower gear.
[0018] In this embodiment, by operating the upper rocker 8 and the lower rocker, the transmission between the gear and the rack can drive the rigid protective component 1 to slide along the limiting slide groove and brake the rigid protective component 1, thus providing effective protection for the elevator shaft.
[0019] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent solutions made using the contents of this utility model specification, whether directly or indirectly applied to other related technical fields, are also within the patent protection scope of this utility model.
Claims
1. A device for in-building mechanical elevator shaft protection, characterized in that, The system includes a rigid protective component, both sides of which are connected to the elevator shaft door opening via limiting components. The limiting components include an upper gearbox and a lower gearbox located at the top and bottom of both sides of the rigid protective component. The top and bottom of the elevator shaft door opening are respectively provided with an upper limiting groove and a lower limiting groove. The upper gearbox and the lower gearbox are slidably connected to the upper limiting groove and the lower limiting groove, respectively. An upper gear is provided on the upper gearbox, and a lower gear is provided on the lower gearbox. An upper rack and a lower rack are respectively provided at the top and bottom of the elevator shaft door opening, and the upper gear and the lower gear are meshed with the upper rack and the lower rack, respectively.
2. A device for an in-floor mechanical elevator shaft guard as defined in claim 1, characterized in that, Both the upper limit slide and the lower limit slide are connected to the elevator shaft door opening by several expansion bolts.
3. A device for an in-building mechanical elevator shaft protection according to claim 1 or 2, characterized in that, The upper gearbox is slidably connected to the upper limit groove via two upper pulleys, and the lower gearbox is slidably connected to the lower limit groove via two lower pulleys.
4. A device for an in-building mechanical elevator shaft protection according to claim 1 or 2, characterized in that, The upper gearbox and the lower gearbox are respectively provided with an upper rocker handle and a lower rocker handle. The upper rocker handle is used to rotate the upper gear, and the lower rocker handle is used to rotate the lower gear.