Lift car balance identification balance system

By installing cameras and compensation systems inside the elevator car, AI technology is used to identify uneven loads and adjust the counterweight position, thus solving the problem of unbalanced elevator loads and improving the elevator's balance and operational stability.

CN223936023UActive Publication Date: 2026-02-24上海富士电梯有限公司
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Patent Information

Application Number
CN202520137089.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-02-24
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

When the load on a passenger or freight elevator is unbalanced, it can lead to poor elevator operation or even prevent the elevator from operating.

Method used

The elevator adopts a car balance recognition system, which includes a camera fixed inside the elevator car and a compensation system. The camera uses AI technology to identify uneven loads and drives the motor to adjust the counterweight position to restore balance.

Benefits of technology

It enables automatic adjustment of the counterweight position when the load is uneven, improving the elevator's balance and operational stability, and reducing the computational burden on the elevator control system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of elevators. A car balance recognition balance system comprises a camera fixed in an elevator car, the camera is connected with an elevator control system, the car balance recognition balance system further comprises a compensation system, the compensation system comprises a guide rail fixed to the bottom of the elevator car, the guide rail is in a circular ring shape, and a balance weight is hung on the guide rail; the compensation system further comprises a driving motor for driving the counter weight to rotate along the guide rail, and the driving motor is connected with the elevator control system. The compensation system is additionally arranged, when the load of the passenger elevator or the load of the goods elevator is unbalanced, the position of the balance weight can be adjusted through the compensation system, and therefore the balance condition of the elevator can be recovered or improved.
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Description

Technical Field

[0001] This utility model relates to the field of elevators, specifically to a car balancing system. Background Technology

[0002] When the load on a passenger elevator or freight elevator is unbalanced, such as when passengers are all leaning to one side or when goods are unevenly distributed, the elevator's operating quality will become poor, or it may even become unable to operate. Utility Model Content

[0003] The purpose of this invention is to provide a car balance recognition and balancing system to solve the above-mentioned technical problems.

[0004] The technical problem solved by this utility model can be achieved by the following technical solution:

[0005] The elevator car balance recognition and balancing system includes a camera fixed inside the elevator car, the camera being connected to the elevator control system. The system is characterized by further including a compensation system, which includes a guide rail fixed to the bottom of the elevator car. The guide rail is circular in shape, and a counterweight is suspended on the guide rail.

[0006] The compensation system also includes a drive motor that drives the counterweight to rotate along the guide rail, and the drive motor is connected to the elevator control system.

[0007] Preferably, the camera is an AI camera.

[0008] Preferably, the guide rail consists of two semi-circular sub-rails, with upward-extending support frames at both ends of the sub-rails. The top of the support frames is fixedly connected to the bottom of the elevator car, and two counterweights are hung on the two sub-rails respectively.

[0009] Preferably, the upper surface of the sub-track is provided with a first tooth; the counterweight is provided with a notch above it, and a rotating shaft is provided at the notch. The rotating shaft passes through the gap between the sub-track and the bottom of the elevator car, and a second tooth is provided on the rotating shaft to match the first tooth, and the first tooth engages with the second tooth.

[0010] Preferably, the counterweight has a horizontally oriented cutout, and the drive motor is fixed in the cutout.

[0011] Preferably, the motor shaft of the drive motor extends toward the central axis of the elevator car, the motor shaft of the drive motor is provided with a first gear, the shaft is provided with an extension on the side near the center of the elevator car, the extension is provided with a second gear that matches the first gear, and the first gear and the second gear are connected by a transmission chain.

[0012] Beneficial effects: 1. This utility model incorporates a compensation system. When the load on the passenger or freight elevator is unbalanced, the position of the counterweight can be adjusted through the compensation system to restore or improve the elevator's balance. 2. This utility model uses an AI camera, which can predict imbalances and activate the compensation system in advance. 3. This utility model optimizes the guide rail structure. When the elevator car is balanced, two symmetrically arranged counterweights can effectively solve the imbalance caused by a single counterweight. Attached Figure Description

[0013] Figure 1 This is a reference diagram showing the usage state of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the utility model will be further described below in conjunction with the accompanying drawings.

[0016] Reference Figure 1 and Figure 2 An elevator car balance recognition system includes a recognition system comprising a camera 3 fixed inside the elevator car 1. The camera 3 is connected to the elevator control system. The elevator control system determines the distribution of passengers or goods inside the car based on the images captured by the camera 3. This can be done by manually judging the images or by a built-in program. The elevator control system's method of determining the distribution of passengers or goods inside the car based on images captured by the camera 3 is existing technology and will not be described in detail here. Preferably, the camera 3 is an AI camera. An AI intelligent camera refers to a network intelligent camera with a built-in artificial intelligence algorithm chip that performs speech recognition and image recognition on the video data captured by the front-end lens. The camera in this invention uses the latest AI camera, which can improve the accuracy of the judgment and reduce the computational requirements of the elevator control system.

[0017] A car balance recognition and balancing system further includes a compensation system 2. The compensation system 2 includes a guide rail fixed to the bottom of the elevator car 1, the guide rail being circular in shape, and a counterweight 24 suspended on the guide rail. The compensation system 2 also includes a drive motor that drives the counterweight 24 to rotate along the guide rail. The drive motor is connected to the elevator control system. When the elevator control system detects uneven distribution of passengers or goods, or an unbalanced load, the elevator control system controls the drive motor to rotate, causing the counterweight 24 to move towards the side with fewer passengers or goods. This utility model uses a circular track, which, compared to a cross track or a square track, allows the counterweight 24 to reach a wider area, thus making the elevator more balanced.

[0018] Preferably, the guide rail consists of two semi-circular sub-rails 23. Each sub-rail 23 has an upwardly extending support frame 21 at both ends, with the top of the support frame 21 fixedly connected to the bottom of the elevator car 1. A first tooth is provided on the upper surface of the sub-rail 23. A notch is provided above the counterweight 24, and a rotating shaft 22 is located at the notch. The rotating shaft 22 has a second tooth that matches the first tooth. The rotating shaft can be driven by the motor shaft of the drive motor, or it can be directly used as the rotating shaft. The two rotating shafts of the two counterweights 24 pass through the gaps between the two sub-rails 23 and the bottom of the elevator car 1. This invention, through the semi-circular sub-rails 23 and the two counterweights 24, shortens the movable distance of the counterweights 24, thereby accelerating the time it takes for the counterweights 24 to move to the designated position. Furthermore, when the elevator car 1 is balanced, the symmetrical arrangement of the two counterweights 24 effectively solves the imbalance caused by a single counterweight 24 when there are no passengers. In the case of two counterweights 24, the elevator control system controls both counterweights 24 to move towards a location with fewer passengers and less cargo, until they reach the designated position or touch the support frame 21. The support frame 21 is preferably covered with a rubber layer to absorb shock and prevent the rotating shaft from rigidly colliding with the support frame 21.

[0019] The drive motor is preferably fixed to the counterweight 24, thereby increasing the weight of the counterweight 24. More preferably, the counterweight 24 has a horizontally oriented cutout, and the drive motor is fixed to the cutout. Preferably, the motor shaft 25 of the drive motor extends towards the central axis of the elevator car 1. The motor shaft 25 of the drive motor is provided with a first gear, and an extension is provided on the side of the shaft near the center of the elevator car 1. A second gear 26, matching the first gear, is provided on the extension, and the first gear and the second gear 26 are connected by a transmission chain. This invention optimizes the position and orientation of the drive motor, making its fixing more convenient, and more importantly, ensuring stable operation and minimal external interference.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A car balance recognition and balancing system, comprising a camera fixed inside an elevator car, the camera being connected to an elevator control system, characterized in that, It also includes a compensation system, which includes a guide rail fixed to the bottom of the elevator car. The guide rail is circular in shape and a counterweight is hung on the guide rail. The compensation system also includes a drive motor that drives the counterweight to rotate along the guide rail, and the drive motor is connected to the elevator control system.

2. The car balance recognition and balancing system according to claim 1, characterized in that, The camera in question is an AI camera.

3. The car balance recognition and balancing system according to claim 1, characterized in that, The guide rail consists of two semi-circular sub-rails. Each sub-rail has an upwardly extending support frame at both ends. The top of the support frame is fixedly connected to the bottom of the elevator car. Two counterweights are hung on each of the two sub-rails.

4. The car balance recognition and balancing system according to claim 3, characterized in that, The upper end face of the sub-track is provided with a first tooth; The counterweight has a notch above it, and a rotating shaft is provided at the notch. The rotating shaft passes through the gap between the sub-track and the bottom of the elevator car. The rotating shaft is provided with a second tooth that matches the first tooth, and the first tooth engages with the second tooth.

5. The car balance recognition and balancing system according to claim 4, characterized in that, The counterweight has a horizontally oriented cutout, and the drive motor is fixed in the cutout.

6. The car balance recognition and balancing system according to claim 5, characterized in that, The motor shaft of the drive motor extends toward the central axis of the elevator car. A first gear is provided on the motor shaft of the drive motor. An extension is provided on the side of the shaft near the center of the elevator car. A second gear matching the first gear is provided on the extension. The first gear and the second gear are connected by a transmission chain.