Protective structure of elevator maintenance frame

Abstract

The utility model discloses a protection structure of an elevator maintenance frame, and belongs to the technical field of maintenance frame protection. The protection structure of the elevator maintenance frame comprises a supporting plate, a pair of extending mechanisms is arranged in the supporting plate and used for supporting the elevator maintenance frame, a top strip is arranged on one side of each extending mechanism, and an anti-falling mechanism for preventing tools from falling is arranged below the top strips. The extension mechanism comprises racks which are located in the supporting plate and distributed in a staggered mode, the two ends of the top strips can extend out, and in a small elevator overhaul scene, the problems that the space is narrow, and other people lack to assist in supporting the maintenance frame are often caused are solved, the racks move, the top strips are expanded to abut against the inner wall of an elevator room to support the maintenance frame, and the maintenance frame is convenient to maintain. The stability of the maintenance frame during placement is greatly improved, so that the problem of toppling caused by difficulty in stabilizing the maintenance frame due to unmanned assistance and small space of the lift car is solved, a safe and reliable operation platform is created for maintenance personnel, and stable development of maintenance work is ensured.

Description

Technical Field

[0001] This application relates to the field of maintenance rack protection technology, and more specifically, to a protective structure for an elevator maintenance rack. Background Technology

[0002] The protective structure of an elevator maintenance rack is a device installed on the maintenance rack to ensure the safety of maintenance personnel. It includes components such as guardrails and safety nets to prevent maintenance personnel from falling or being hit by moving parts during the operation.

[0003] In the field of elevator maintenance, traditional elevator maintenance racks are designed primarily to fit the spaces of conventional large elevators, resulting in relatively simple structures. They often rely solely on manual placement and simple securing by maintenance personnel to ensure stability within the elevator car. However, in the confined environment of small elevators, maintenance racks lack effective self-support and stabilization mechanisms. Inevitably, personnel will touch and shake the racks during operation, leading to imbalances and tipping, seriously threatening the personal safety of maintenance personnel, causing frequent interruptions to maintenance work, reducing maintenance efficiency, and potentially causing secondary damage to the elevator due to the rack tipping over and colliding with delicate components inside the car. This increases maintenance and time costs, affects the elevator's normal operating time, and causes inconvenience for residents using the elevator daily.

[0004] In view of this, this application proposes a protective structure for an elevator maintenance rack. Utility Model Content

[0005] The purpose of this application is to provide a protective structure for an elevator maintenance rack, which solves the technical problems mentioned in the background art.

[0006] This application provides a protective structure for an elevator maintenance rack, including a support plate. The support plate has a pair of extension mechanisms inside, which support the elevator maintenance rack. One side of each extension mechanism has a top bar, and below the top bar is an anti-fall mechanism to prevent tools from falling. Each extension mechanism includes staggered racks located inside the support plate, with the ends of the two racks being fixedly connected to the top bar. The anti-fall mechanism includes a retractable anti-fall net located below the racks, and the anti-fall net is fan-shaped.

[0007] Optionally, the support plate has an internal mounting groove, and both sides of the mounting groove have interconnected extension grooves.

[0008] Optionally, a rotating shaft is rotatably connected inside the mounting groove, and a gear block is fixedly connected to the outer wall of the rotating shaft. The rack is located inside the extension groove, and the rack and the gear block mesh with each other.

[0009] Optionally, mounting strips are fixedly connected to both sides of the upper surface of the support plate, and a fixed motor is fixedly connected to the bottom of the support plate, with the output end of the fixed motor fixedly connected to the rotating shaft.

[0010] Optionally, a through groove is provided inside the top bar, a pair of fixing blocks are fixedly connected to the lower end face of the top bar, a fixing shaft is fixedly connected between the two fixing blocks, and a rotating sleeve is sleeved around the fixing shaft.

[0011] Optionally, a torsion spring is sleeved on the outer wall of the fixed shaft, one end of the torsion spring is fixedly connected to the fixed shaft, and the other end of the torsion spring is fixedly connected to the rotating sleeve.

[0012] Optionally, a pair of connecting strips are fixedly connected to the lower end face of the support plate, and the fall protection net is fixedly connected between the connecting strips and the rotating sleeve.

[0013] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0014] 1. This application addresses the common problem of limited space and lack of assistance in supporting the maintenance frame in small elevator maintenance scenarios by setting up top bars that can extend from both ends. The movement of the rack allows the top bars to open and support the maintenance frame against the inner wall of the elevator car, greatly improving the stability of the maintenance frame when it is placed. This solves the problem of tipping over caused by the lack of assistance and the small car space, creating a safe and reliable working platform for maintenance personnel and ensuring the smooth progress of maintenance work.

[0015] 2. This application utilizes a top bar movement to synchronously drive the fixed block and rotating sleeve to deploy the fall protection net, with a torsion spring assisting in deformation energy storage. The deployed fall protection net effectively catches falling tools, preventing them from damaging the car equipment, the bottom components of the elevator, or being lost and difficult to find, allowing workers to retrieve them promptly and continue work. After maintenance is completed, the torsion spring rebounds and retracts the fall protection net using a gear block reversal winding mechanism, saving space and maintaining a clean and orderly site. This makes the protective equipment both practical and convenient, allowing for repeated and efficient use to ensure efficient and safe elevator maintenance operations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the protective structure of the elevator maintenance rack disclosed in the embodiments of this application;

[0017] Figure 2 This is a schematic diagram of the internal structure of the protective support plate of the elevator maintenance rack disclosed in an embodiment of this application;

[0018] Figure 3 This is a partial cross-sectional view of the protective structure of the elevator maintenance rack disclosed in an embodiment of this application;

[0019] The following are the labels in the diagram: 1. Support plate; 2. Mounting groove; 3. Extension groove; 4. Gear block; 5. Rack; 6. Mounting strip; 7. Fixed motor; 8. Top strip; 9. Connecting groove; 10. Fixing block; 11. Fixing shaft; 12. Rotating sleeve; 13. Rotating shaft; 14. Connecting strip; 15. Fall protection net; 16. Torsion spring. Detailed Implementation

[0020] The present application will be further described in detail below with reference to the accompanying drawings.

[0021] Reference Figures 1-3 This application provides a protective structure for an elevator maintenance rack, including a support plate 1. The support plate 1 has a pair of extension mechanisms inside, which support the elevator maintenance rack. One side of the extension mechanism has a top bar 8, and below the top bar 8 is an anti-fall mechanism to prevent tools from falling. The extension mechanism includes racks 5 that are staggered inside the support plate 1. The ends of the two racks 5 that are far apart from each other are fixedly connected to the top bar 8. In small elevator maintenance scenarios, there are often problems such as limited space and lack of assistance from others to support the maintenance rack. The movement of the racks 5 allows the top bar 8 to open and abut against the inner wall of the elevator car to support the maintenance rack, which greatly improves the stability of the maintenance rack when it is placed. This solves the problem of tipping over caused by the lack of assistance and the small space in the car, creating a safe and reliable working platform for maintenance personnel and ensuring the smooth progress of maintenance work.

[0022] The support plate 1 has an internal mounting groove 2, and two connected extension grooves 3 are provided on both sides of the mounting groove 2. A rotating shaft 13 is rotatably connected inside the mounting groove 2. A gear block 4 is fixedly connected to the outer wall of the rotating shaft 13. A rack 5 is located in the extension groove 3 and meshes with the gear block 4. Mounting strips 6 are fixedly connected to both sides of the upper surface of the support plate 1. A fixed motor 7 is fixedly connected to the bottom of the support plate 1. The output end of the fixed motor 7 is fixedly connected to the rotating shaft 13. When the fixed motor 7 is working, it drives the rotating shaft 13 to rotate the gear block 4, which in turn causes the meshing rack 5 to move, thereby opening the top bar 8. The operation is simple and very convenient to use.

[0023] The top bar 8 has a through groove 9 for receiving and recycling another rack 5. A pair of fixing blocks 10 are fixedly connected to the lower end of the top bar 8. A fixing shaft 11 is fixedly connected between the two fixing blocks 10. A rotating sleeve 12 is sleeved around the fixing shaft 11. The anti-fall mechanism includes an anti-fall net 15 located below the rack 5 that can be rolled up. The anti-fall net 15 is fan-shaped. A pair of connecting strips 14 are fixedly connected to the lower end of the support plate 1. The anti-fall net 15 is fixedly connected between the connecting strips 14 and the rotating sleeve 12. The movement of the top bar 8 synchronously drives the fixing blocks 10 and the rotating sleeve 12 to unfold the anti-fall net 15. The unfolded anti-fall net 15 can effectively catch falling tools, preventing them from falling and damaging the car equipment, damaging the bottom parts of the elevator, or being lost and difficult to find. It is convenient for staff to pick up the tools in time and continue working.

[0024] Reference Figure 3 A torsion spring 16 is sleeved on the outer wall of the fixed shaft 11. One end of the torsion spring 16 is fixedly connected to the fixed shaft 11, and the other end of the torsion spring 16 is fixedly connected to the rotating sleeve 12. After maintenance is completed, the torsion spring 16 rebounds to store the fall protection net 15 by means of the reverse winding mechanism of the gear block 4, saving space and keeping the site clean and orderly. This makes the protective equipment both practical and convenient, and allows for repeated and efficient use to ensure that elevator maintenance work is carried out efficiently and safely.

[0025] Working principle: Workers install two protective structures crosswise onto the bottom of the elevator maintenance frame using mounting strips 6. The elevator maintenance frame is then placed inside the elevator shaft. Since some small elevators are not suitable for multiple people to inspect inside the shaft, when no one else is available to assist in supporting the elevator maintenance frame, the fixed motor 7 is activated. The output end of the fixed motor 7 rotates, driving the rotating shaft 13 to rotate. The rotating shaft 13 then drives the gear block 4 to rotate, which in turn moves the two meshing racks 5. The movement of the two racks 5 causes the two top bars 8 to move away from each other until the two top bars 8 contact the inner wall of the elevator shaft, thus supporting the elevator maintenance frame and preventing it from tipping over during use.

[0026] During the movement of the top bar 8, the movement of the top bar 8 will drive the fixed block 10 and the rotating sleeve 12 below to move synchronously. As the rotating sleeve 12 moves, it will unfold the wound fall protection net 15, and the torsion spring 16 will deform. The unfolded fall protection net 15 will lie flat under the rack 5, and the fall protection net 15 can catch fallen tools, making it convenient for workers to pick them up. When not in use, the gear block 4 will reverse, the rack 5 will retract, the top bar 8 will return to its initial position, and the torsion spring 16 will rebound, driving the rotating sleeve 12 to rotate, thereby rolling up the fall protection net 15, achieving a good storage effect.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A protective structure for an elevator maintenance rack, comprising a support plate (1), characterized in that: The support plate (1) is provided with a pair of extension mechanisms inside, and the extension mechanisms are used to support the elevator maintenance frame. A top bar (8) is provided on one side of the extension mechanism, and a fall prevention mechanism to prevent tools from falling is provided below the top bar (8). The extension mechanism includes racks (5) arranged in an alternating pattern inside the support plate (1), and the end faces of the two racks (5) that are far apart from each other are fixedly connected to the top bar (8). The fall protection mechanism includes a fall protection net (15) located below the rack (5) that can be rolled up, and the fall protection net (15) is fan-shaped.

2. A protective structure for an elevator maintenance platform according to claim 1, characterized in that: The support plate (1) has an installation groove (2) inside, and the two sides of the installation groove (2) have interconnected extension grooves (3).

3. The protective structure for an elevator maintenance shelf according to claim 2, characterized in that: The mounting groove (2) is rotatably connected to a rotating shaft (13), and a gear block (4) is fixedly connected to the outer wall of the rotating shaft (13). The rack (5) is located in the extension groove (3), and the rack (5) and the gear block (4) mesh with each other.

4. The protective structure for an elevator maintenance shelf according to claim 3, characterized in that: Mounting strips (6) are fixedly connected to both sides of the upper surface of the support plate (1), and a fixed motor (7) is fixedly connected to the bottom of the support plate (1). The output end of the fixed motor (7) is fixedly connected to the rotating shaft (13).

5. The protective structure of the elevator maintenance rack according to claim 1, characterized in that: The top bar (8) has a through groove (9) inside. A pair of fixing blocks (10) are fixedly connected to the lower end face of the top bar (8). A fixing shaft (11) is fixedly connected between the two fixing blocks (10). A rotating sleeve (12) is sleeved around the fixing shaft (11).

6. The protective structure for an elevator maintenance shelf according to claim 5, characterized in that: A torsion spring (16) is fitted on the outer wall of the fixed shaft (11). One end of the torsion spring (16) is fixedly connected to the fixed shaft (11), and the other end of the torsion spring (16) is fixedly connected to the rotating sleeve (12).

7. The protective structure for an elevator service cart according to claim 1, wherein: A pair of connecting strips (14) are fixedly connected to the lower end face of the support plate (1), and the fall protection net (15) is fixedly connected between the connecting strips (14) and the rotating sleeve (12).

Images