Protection device for preventing front door lift car of inclined elevator from accidentally moving
By combining guide shoes, brake blocks, electromagnets, and elastic components, the problem of unexpected movement of the inclined elevator car during stopping is solved, achieving stable braking and safe stopping, and improving the service life and safety of the elevator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGNAN ELEVATOR
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-28
AI Technical Summary
The existing inclined elevators lack a complete UCMP system, which leads to unexpected movement of the car when it stops, affecting the safety of use and the life of the elevator.
The design employs a combination of guide shoes, brake blocks, electromagnets, and elastic elements. The clamping and releasing of the brake blocks are controlled by the magnetic connection of the electromagnets and the elastic force of the elastic elements, thereby achieving stable braking of the car.
It achieves stable braking of the car when stopping at each floor, avoids accidental movement, improves the safety and lifespan of the elevator, and prevents accidental collisions between the landing doors and the car doors.
Smart Images
Figure CN224172257U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator technology, specifically a protective device for preventing the accidental movement of the front door car of a diagonal elevator. Background Technology
[0002] Inclined elevators serve designated floors and are used to transport passengers and goods. Suspended by steel cables or chains, they run along a defined path on guide rails at an angle of 15° to 75° to the horizontal. Inclined elevators are primarily used for lifting objects on sloping surfaces. They are more labor-saving and energy-efficient than vertical traction elevators, and are compact, safe, and reliable, meeting the needs of elevator operation in certain special application scenarios.
[0003] Current inclined elevators mainly rely on compression buffers at the upper and lower landings to prevent accidental collisions between the landing doors and the car doors. However, they lack protection against accidental movement in the upward direction at the lower landing, the downward direction at the upper landing, and the upward and downward directions at intermediate landings. Therefore, existing inclined elevators do not have a complete UCMP (Unintended Car Movement Protection) system, which makes it possible for the car to move unexpectedly when it stops, thus reducing safety and elevator lifespan. Utility Model Content
[0004] The purpose of this utility model is to provide a protective device to prevent the accidental movement of the front door car of an inclined elevator, in order to solve the problem that existing inclined elevators do not have a complete UCMP system, which leads to the accidental movement of the car when it stops, thus reducing the safety and service life of the elevator.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a protective device for preventing accidental movement of the front door car of a slanted elevator, comprising:
[0006] The guide shoe is installed at the bottom of the elevator car, and the top of the inclined guide rail is slidably inserted into the connecting groove of the guide shoe;
[0007] Braking blocks are laterally slidably arranged on both sides of the connecting groove and the inclined guide rail, and guide posts on them are slidably disposed on guide holes extending from the side of the connecting groove.
[0008] An electromagnet is fitted into a first mounting groove extending from the side of the connecting groove and is magnetically connected to the brake block.
[0009] An elastic element is assembled in a second mounting groove extending from the side of the connecting groove, and its ends respectively abut against or are positioned on the brake block and the second mounting groove.
[0010] As a further description of the above technical solution:
[0011] The brake block is provided with a wear-resistant pad layer on its inner side.
[0012] As a further description of the above technical solution:
[0013] A limiting block is provided at the outer end of the guide post.
[0014] As a further description of the above technical solution:
[0015] The brake block and the guide post are respectively provided with a first assembly hole and a second assembly hole that are laterally connected to each other, and the fasteners are positioned on the first assembly hole and the second assembly hole.
[0016] As a further description of the above technical solution:
[0017] The fastener is a bolt or pin, which is screwed or interference-fitted and positioned on the first mounting hole and the second mounting hole.
[0018] As a further description of the above technical solution:
[0019] The elastic element is a compression spring.
[0020] In summary, by adopting the above technical solution, this utility model has the following advantages over the prior art:
[0021] Beneficial effects:
[0022] When this utility model's protective device for preventing accidental movement of the car in a slanted elevator's front door is in use, the elevator control system detects that the car has stopped at a level position, the car brake is engaged, and the front door is open. The electromagnet is de-energized, and the elastic element pushes the brake block towards the slanted guide rail, clamping the brake block against the guide rail and braking the car, thus preventing accidental car movement. When the car needs to move, the electromagnet is energized, and the resulting electromagnetic field exerts an outward magnetic attraction on the brake block, causing it to overcome the elastic force of the elastic element and move outward, releasing the slanted guide rail and allowing the car to continue moving. This design ensures stable braking of the car at each floor, preventing accidental movement, making the elevator's UCMP system more complete and safer, preventing accidental collisions between the landing door and car door, and extending the elevator's service life. Attached Figure Description
[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a bottom cross-sectional view of a protective device for preventing accidental movement of the car in the front door of an inclined elevator.
[0025] Figure 2 This is a side cross-sectional view of a protective device for preventing accidental movement of the car in the front door of an inclined elevator.
[0026] Legend:
[0027] 1. Guide shoe; 2. Connecting groove; 3. Braking block; 4. Guide post; 5. Guide hole; 6. Electromagnet; 7. First mounting groove; 8. Elastic element; 9. Second mounting groove; 10. Wear-resistant pad; 11. Limiting block; 12. First assembly hole; 13. Second assembly hole; 14. Fastener; 100. Elevator car; 200. Inclined guide rail. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] Please see Figure 1-2 This utility model provides a technical solution: a protective device for preventing accidental movement of the front door car of a slanted elevator, comprising:
[0031] The guide shoe 1 is installed at the bottom of the elevator car 100, and the top of the inclined guide rail 200 is slidably inserted into the connecting groove 2 of the guide shoe 1.
[0032] Braking block 3 is laterally slidably arranged on both sides of the connecting groove 2 and the inclined guide rail 200, and the guide post 4 on it is slidably arranged on the guide hole 5 extending from the side of the connecting groove 2.
[0033] Electromagnet 6 is assembled in the first mounting groove 7 extending from the side of the connecting groove 2 and is magnetically connected to the brake block 3.
[0034] The elastic element 8 is assembled in the second mounting groove 9 extending from the side of the connecting groove 2, and its ends abut or are positioned on the brake block 3 and the second mounting groove 9, respectively.
[0035] The inner side of the brake block 3 is provided with a wear-resistant pad 10, which has a high coefficient of friction. While ensuring that the brake block 3 clamps the inclined guide rail 200 and realizes the car braking, it reduces the wear of the brake block 3 and improves its service life.
[0036] A limiting block 11 is provided at the outer end of the guide post 4 to limit the range of motion of the brake block 3 and the guide post 4, thereby ensuring the stability of braking and the switching of the brake block 3's release state.
[0037] The brake block 3 and guide post 4 are respectively provided with a first mounting hole 12 and a second mounting hole 13 that are laterally connected. Fasteners 14 are positioned in the first mounting hole 12 and the second mounting hole 13. The fasteners 14 are bolts or pins, which are screwed in or positioned in the first mounting hole 12 and the second mounting hole 13 by an interference fit with an elastic fitting. This allows the brake block 3 and guide post 4 to be disassembled, so that the brake block 3 can be removed for maintenance and replacement, improving the protective effect and braking performance of this protective device.
[0038] The elastic element 8 is a compression spring.
[0039] The working principle of the protective device for preventing accidental movement of the car in a inclined elevator according to this embodiment includes: During use, when the elevator control system detects that the car has stopped at a level position, the car brake is in a braking state, and the car front door is open, the electromagnet 6 is de-energized. The elastic element 8 pushes the brake block 3 towards the inclined guide rail 200, clamping the brake block 3 against the inclined guide rail 200, thus braking the car and achieving the protection function against accidental car movement. When the car needs to move, the electromagnet 6 is energized, and the resulting electromagnetic field exerts an outward magnetic attraction force on the brake block 3, causing the brake block 3 to overcome the elastic force of the elastic element 8 and move outward, releasing the inclined guide rail 200, allowing the car to continue moving. This design ensures stable braking of the car at each floor stop, preventing accidental movement, making the elevator UCMP system more complete and safer to use, preventing accidental collisions between the landing door and the car door, and extending the elevator's service life.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A protective device for preventing accidental movement of the car at the front door of a inclined elevator, characterized in that, include: The guide shoe is installed at the bottom of the elevator car, and the top of the inclined guide rail is slidably inserted into the connecting groove of the guide shoe; Braking blocks are laterally slidably arranged on both sides of the connecting groove and the inclined guide rail, and guide posts on them are slidably disposed on guide holes extending from the side of the connecting groove. An electromagnet is fitted into a first mounting groove extending from the side of the connecting groove and is magnetically connected to the brake block. An elastic element is assembled in a second mounting groove extending from the side of the connecting groove, and its ends respectively abut against or are positioned on the brake block and the second mounting groove.
2. The protective device for preventing accidental movement of the front door car of an inclined elevator according to claim 1, characterized in that, The brake block is provided with a wear-resistant pad layer on its inner side.
3. The protective device for preventing accidental movement of the front door car of an inclined elevator according to claim 1, characterized in that, A limiting block is provided at the outer end of the guide post.
4. The protective device for preventing accidental movement of the front door car of an inclined elevator according to claim 1, characterized in that, The brake block and the guide post are respectively provided with a first assembly hole and a second assembly hole that are laterally connected to each other, and the fasteners are positioned on the first assembly hole and the second assembly hole.
5. A protective device for preventing accidental movement of the front door car of an inclined elevator according to claim 4, characterized in that, The fastener is a bolt or pin, which is screwed or interference-fitted and positioned on the first mounting hole and the second mounting hole.
6. A protective device for preventing accidental movement of the front door car of an inclined elevator according to claim 1, characterized in that, The elastic element is a compression spring.