Vertical operation outer layer door of elevator
By adding racks and motor-driven driving gears to the hanging cage door of the construction elevator, the electric opening of the hanging cage door is achieved, solving the problem of insufficient manual operation of the hanging cage door and limit switch sensing distance in the prior art, improving the safety and stability of the elevator, and reducing the failure rate and cost.
Patent Information
- Application Number
- CN202421844920.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-01
AI Technical Summary
The cage doors of existing construction elevators mainly rely on manual operation, and the induction distance of the limit switch exists, which leads to insufficient reaction when clamping foreign objects when closing the door, which reduces the safety of the elevator, and at the same time, the failure rate is high and the cost is high.
A lift vertically running outer door is designed, and the electric opening of the hanging cage door is achieved by adding racks to the hanging cage door and using a motor to drive the driving gear to mesh with the rack. The design includes a limit wheel, rack, back-to-back wheel and drive mechanism to ensure stable lifting and lowering of the cage door, and provides timeout protection and overcurrent protection through encoder and electronic control systems.
The electric opening of the cage door is realized, with a simple structure and reliable operation, reducing the failure rate and cost, and improving the safety and stability of the elevator.
Smart Images
Figure CN222877418U_ABST
Abstract
Description
Technical Field
[0001] The utility model mainly relates to the field of elevators, in particular to a vertically running outer door of an elevator. Background Art
[0002] Construction machinery such as construction elevators are beginning to play a huge role in more and more construction fields, especially for large projects and high-rise buildings. The use of construction elevators is particularly important. It can greatly improve productivity and save labor time. At present, the operation and door opening of construction elevators are mostly manual, and the door opening is only detected and fed back by a limit switch set in the elevator cage. The sensing distance of the limit switch exists within a range, and it cannot react well to foreign objects being caught when closing the door, thereby reducing the safety of the elevator.
[0003] The conventional electric door of the cage needs to change many mechanisms, and the manufacturing needs to spend a lot of manpower and a lot of accessories to add some unnecessary devices, such as chains, sprockets, bearings, high-power motors, motor bases, bearing bases, sprocket guards, changing the position of the counterweight slot, a large number of secondary lines and control lines, and the number of limit switches is large, up to more than 30 for one elevator. As long as there is a problem with one limit switch, some insects and mud on the building will cause the elevator to stop running. The failure rate is too high, which will cause psychological distress to the passengers. And the cost is high, which is a huge burden for both the enterprise and the user. Utility Model Content
[0004] In order to solve the deficiencies of the prior art, the utility model provides a vertically running outer door for an elevator, which has a simple structure and reliable operation and can realize the electric opening of the elevator cage door.
[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:
[0006] A vertically running outer door of an elevator comprises an elevator cage, the front side of the elevator cage is provided with an entrance, a cage door is arranged at the entrance, at least one pair of limiting wheels are arranged on both sides of the top of the entrance, the limiting wheels are grooved wheels, the cage door is adapted to the grooves of the limiting wheels, a rack is vertically arranged in the middle of the cage door, a backing wheel and a driving mechanism are arranged on the top of the elevator cage, the backing wheel is abutted against the back of the rack, the driving mechanism comprises a driving motor and a driving gear, and the driving gear is meshed with the rack.
[0007] An encoder is installed at the tail of the driving motor.
[0008] An anti-collision block is arranged at the bottom of the cage door.
[0009] An array of long holes is arranged on the top of the cage door.
[0010] Slide grooves are arranged on both sides of the inlet, and counterweights are slidably arranged in the slide grooves. A traction rope is connected between the counterweight and the bottom of the cage door, and the traction rope passes through a limiting wheel.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model has a simple structure. The cage door can be modified to open electrically by adding a rack to the cage door and driving it with a motor. The overall modification cost is low, and very few mechanisms are added, so the modification cost is low.
[0013] The utility model has a stable structure, fewer additional sensor elements, more stable operation, and will not cause the device to get stuck due to dirt during operation, thereby reducing the overall failure rate of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Attached Figure 1 This is a schematic diagram of the three-dimensional viewing angle structure of the utility model;
[0015] Attached Figure 2 This is a schematic diagram of the structure of the utility model from a top view;
[0016] Attached Figure 3 This is a schematic diagram of the main viewing angle structure of the utility model;
[0017] Attached Figure 4 This utility model Figure 3 Schematic diagram of the cross-sectional structure from the EE perspective;
[0018] Attached Figure 5 This utility model Figure 1 A partial enlarged structural diagram of the middle part;
[0019] Attached Figure 6 This utility model Figure 1 A schematic diagram of the partially enlarged structure of the middle B part;
[0020] Attached Figure 7 This utility model Figure 2 A schematic diagram of the partially enlarged structure of the middle C part;
[0021] Attached Figure 8 This utility model Figure 3 The schematic diagram of the partial enlarged structure of the middle D part;
[0022] The numbers shown in the accompanying drawings are: 1. elevator cage; 2. cage door; 3. limiting wheel; 4. rack; 5. backing wheel; 6. driving mechanism; 7. counterweight; 11. inlet; 12. slide; 21. anti-collision block; 22. long hole; 61. driving motor; 62. driving gear. DETAILED DESCRIPTION
[0023] The utility model is further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by this application.
[0024] like Figure 1-8 As shown, the vertically running outer door of an elevator described in the utility model comprises an elevator cage 1, and an operation panel is arranged inside the elevator cage 1 for controlling the lifting and lowering of the elevator cage 1 and the opening and closing of the cage door 2. The elevator cage 1 has an inlet 11 at the front side, and the cage door 2 is arranged at the inlet 11, and the cage door 2 can move up and down at the inlet 11 of the elevator cage 1.
[0025] Specifically, at least one pair of limiting wheels 3 are arranged on both sides of the top of the entrance 11. The limiting wheels 3 are grooved wheels. The cage door 2 cooperates with the grooves of the limiting wheels 3. The cage door 2 is limited by the grooves so that the cage door 2 can be stably lifted up and down.
[0026] A rack 4 is vertically arranged in the middle of the cage door 2, and a backing wheel 5 and a driving mechanism 6 are arranged on the top of the elevator cage 1, and the backing wheel 5 is in contact with the back of the rack 4. The driving mechanism 6 includes a driving motor 61 and a driving gear 62, and the driving gear 62 is meshed with the rack 4. Specifically, the driving mechanism 6 is fixed to an iron plate through a tripod, and the iron plate is fixed on the top of the elevator cage 1. Driven by the driving motor 61, the meshing of the driving gear 62 and the rack 4 can be utilized to drive the cage door 2 to be stably lifted and lowered. A light curtain sensor is provided on the inner side of the cage door, and the sensor is used to limit the displacement of the cage door to ensure that the cage door does not run beyond the limit and cause danger.
[0027] Furthermore, an encoder is installed at the tail of the driving motor 61. The encoder monitors the position, and the electric control system in the elevator cage 1 is connected to the driving motor 61 through wires. When it is detected that the cage door 2 runs for more than the set time, the power is immediately cut off to stop the cage door. When it is detected that the running current of the cage door 2 exceeds the set current intensity, the power is immediately cut off to stop the cage door. Through the control of the electric control system, when the driving motor 61 drives the cage door 2, timeout protection and overcurrent protection are provided.
[0028] Furthermore, an anti-collision block 21 is provided at the bottom of the cage door 2, and the anti-collision block 21 buffers the cage door 2 to prevent the cage door 2 from making hard contact with the bottom of the elevator cage 1, and to prevent the cage door 2 from being deformed due to collision.
[0029] Furthermore, an array of long holes 22 is provided on the top of the cage door 2, and the long holes 22 are used as observation holes and ventilation holes.
[0030] Furthermore, slide grooves 12 are provided on both sides of the inlet 11, and a counterweight 7 is slidably provided in the slide grooves 12. A traction rope is connected between the counterweight 7 and the bottom of the cage door 2, and the traction rope passes through the limiting wheel 3. The limiting wheel 3 changes direction so that the counterweight 7 can be linked with the cage door 2. When the cage door 2 is pulled up, the counterweight 7 drops, and when the cage door 2 drops, the counterweight 7 rises, thereby reducing the driving force of the counterweight 7 balancing drive motor 61 to drive the cage door 2, and ensuring the stable lifting and lowering of the cage door 2. Specifically, the frames on both sides of the cage door 2 are square tubes, and the traction rope passes through the square tubes.
Claims
1. A vertically operating outer door for an elevator, comprising an elevator cage (1), characterized in that: The elevator cage (1) has an entrance (11) on the front side, a cage door (2) is arranged at the entrance (11), at least one pair of limiting wheels (3) are arranged on both sides of the top of the entrance (11), the limiting wheels (3) are grooved wheels, the cage door (2) is adapted to the grooves of the limiting wheels (3), a rack (4) is vertically arranged in the middle of the cage door (2), a backing wheel (5) and a driving mechanism (6) are arranged on the top of the elevator cage (1), the backing wheel (5) is in contact with the back of the rack (4), the driving mechanism (6) comprises a driving motor (61) and a driving gear (62), and the driving gear (62) is meshed with the rack (4).
2. The vertically running outer door of an elevator according to claim 1, characterized in that: An encoder is installed at the tail of the driving motor (61).
3. The vertically running outer door of an elevator according to claim 1, characterized in that: An anti-collision block (21) is arranged at the bottom of the cage door (2).
4. The vertically operating outer door of an elevator according to claim 1, characterized in that: The top of the cage door (2) is provided with an array of long holes (22).
5. The vertically operating outer door of an elevator according to claim 1, characterized in that: Slide grooves (12) are arranged on both sides of the inlet (11), a counterweight (7) is slidably arranged in the slide groove (12), a traction rope is connected between the counterweight (7) and the bottom of the cage door (2), and the traction rope passes through the limiting wheel (3).