Elevator hoist rope detection system
By installing image acquisition and monitoring devices in elevators, the status and spacing of traction ropes can be monitored in real time, solving the safety hazards caused by traction rope elongation and enabling safe operation and timely early warning of elevators.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUSN KOYO ELEVATOR
- Filing Date
- 2025-04-09
- Publication Date
- 2026-04-14
AI Technical Summary
In existing technologies, the elevator traction rope may elongate during use, reducing the buffer distance and potentially causing elevator accidents that could affect passenger safety. There is a lack of effective monitoring and early warning methods.
Image acquisition and monitoring devices are used to monitor the status of the traction rope and the distance between the counterweight frame and the counterweight buffer in real time. The traction rope status image is captured by a camera device, the distance is monitored by an infrared detector, and the elevator stops and alarms are triggered when the distance exceeds a preset threshold.
This improves the accuracy of traction rope condition assessment and elevator operation safety, ensuring timely elevator stop when the traction rope is stretched, thus preventing accidents.
Smart Images
Figure CN224118541U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of elevators, and particularly relates to an elevator traction rope detection system. Background Technology
[0002] With the rapid development of the construction industry, buildings are getting taller and taller, making elevators increasingly important in people's daily lives, especially in low-rise residential buildings and office buildings.
[0003] In the current technology, as the number of runs and the running time increase, the traction steel wire rope of the traction passenger elevator inevitably experiences phenomena such as elongation.
[0004] Elongation of elevator wire ropes is mainly divided into structural elongation and creep elongation. Elevator wire ropes themselves have a helical structure, similar to a large spring. With the increase in the number of uses and time, structural elongation will occur. In addition, with the occurrence of fretting wear on the surface of the wire, the diameter of the wire becomes smaller and smaller, and the lay pitch becomes larger and larger, which will cause creep elongation of the elevator wire rope.
[0005] In the above situation, the elongation of the traction steel wire rope will inevitably extend entirely to the counterweight side, causing the buffer distance on the counterweight side to become smaller and smaller, and eventually, it may exceed the tolerance due to the buffer distance being too small. Furthermore, in severe cases, the counterweight may even have tipped onto the buffer before the elevator reaches the floor level, causing an elevator accident, endangering passenger safety or causing personal injury. Therefore, we must pay attention to the problem of steel wire rope elongation.
[0006] There is currently no effective solution to the above problems.
[0007] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content
[0008] The purpose of this application is to provide an elevator traction rope detection system to solve the problem of monitoring the elongation (stretching) of the steel wire rope.
[0009] This application provides an elevator traction rope detection system, comprising:
[0010] A counterweight device, the counterweight device including a counterweight frame and a counterweight buffer, the counterweight frame being connected to the car via a traction rope, and the counterweight buffer being located below at least a portion of the counterweight frame;
[0011] An image acquisition device is positioned near the traction rope. The image acquisition device includes a camera and an image output unit. The camera and the image output unit are electrically connected. The camera is used to acquire the state of the traction rope.
[0012] A monitoring device is installed at the bottom of the counterweight frame. The monitoring device is used to monitor the distance between the counterweight frame and the counterweight buffer. The monitoring device is electrically connected to the control device.
[0013] Preferably, the control device stops the car after the monitoring device detects that the distance between the counterweight frame and the counterweight buffer exceeds a preset threshold.
[0014] Preferably, the image output unit is connected to the camera device via a network cable, and the image output unit is used to output the image of the traction rope and the traction rope image acquired by the image acquisition device.
[0015] Preferably, the monitoring device includes a detector, which is an infrared detector.
[0016] Preferably, the device further includes a power supply unit, which is electrically connected to both the image acquisition device and the monitoring device, such that the image acquisition device and the monitoring device are connected in parallel.
[0017] Preferably, the control device is electrically connected to the alarm, so that the control device can trigger an alarm through the alarm.
[0018] Preferably, the image acquisition device includes two camera devices and two image output units, the two camera devices and the two image output units are respectively signal connected, and the two camera devices are connected in parallel.
[0019] Preferably, the monitoring device includes two detectors, both of which are electrically connected to the control device, and the two detectors are connected in parallel.
[0020] Preferably, the alarm is an audible and visual alarm.
[0021] Preferably, the network cable is a Category 6a network cable.
[0022] Compared with the prior art, the beneficial effects of this utility model are:
[0023] 1. This utility model uses an image acquisition device to acquire images of the traction rope's state and a monitoring device to monitor the distance between the counterweight frame and the counterweight buffer, thereby increasing the accuracy of judging whether the traction rope is stretched and thus improving the safety of elevator operation.
[0024] 2. This utility model, by setting up an image acquisition device including an image output unit and a camera device, can accurately acquire and display images of the traction rope status, thereby improving the accuracy of traction rope status inspection and significantly improving the safety of elevator operation.
[0025] 3. This utility model improves the accuracy of monitoring by setting a detector in the detection device to monitor the distance between the counterweight frame and the counterweight buffer, and by using infrared light to monitor the distance between the counterweight frame and the counterweight buffer.
[0026] 4. This utility model provides a power supply device that is electrically connected to both the image acquisition device and the monitoring device, enabling them to operate in parallel. This parallel connection allows the image acquisition device and the monitoring device to work independently, ensuring that at least one of them remains operational, or simultaneously acquires images and monitors the distance to a specific state of the traction rope. This significantly improves the stability of the image acquisition device and the monitoring device. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is an overall structural diagram of an elevator traction rope detection system provided in an embodiment of this application.
[0029] In the diagram: 1. Traction rope; 2. Image output unit; 3. Camera device; 4. Detector; 5. Control device; 6. Power supply device; 7. Alarm; 8. Network cable. Detailed Implementation
[0030] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.
[0031] In the description of this utility model, it should be noted that the terms "upper," "middle," "lower," "inner," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component 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. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The implementation methods of this utility model will now be described based on its overall structure.
[0032] Reference Figure 1 As shown, this application embodiment provides an elevator traction rope detection system, including:
[0033] The counterweight device includes a counterweight frame and a counterweight buffer. The counterweight frame is connected to the car via traction rope 1, and the counterweight buffer is arranged opposite to the counterweight frame.
[0034] An image acquisition device is placed near the traction rope 1, and the image acquisition device is used to acquire the state of the traction rope 1;
[0035] A monitoring device is installed near the counterweight frame. The monitoring device is electrically connected to the control device 5. The monitoring device is used to monitor the distance between the counterweight frame and the counterweight buffer, and the monitoring device compares the distance with a standard value.
[0036] If the distance exceeds the preset threshold, the control device 5 will sound an alarm and the car will stop working.
[0037] according to Figure 1 With the aforementioned structure, those skilled in the art can set up an image acquisition device and a monitoring device to collect and monitor the state of the elevator's traction rope 1 and the distance between the counterweight frame and the counterweight buffer.
[0038] It is understandable that those skilled in the art can monitor the distance between the counterweight frame and the counterweight buffer, compare this distance with a standard value, and if the distance exceeds a preset threshold, the traction rope 1 is in a stretched state, and the elevator needs to be repaired.
[0039] Specifically, those skilled in the art would configure the counterweight frame and the car to be connected by a traction rope 1, and the counterweight buffer to be disposed opposite to the counterweight frame, with the counterweight buffer located below at least a portion of the counterweight frame.
[0040] Furthermore, those skilled in the art can position the image acquisition device close to the traction rope 1, thereby enabling the image acquisition device to acquire state images of the traction rope 1. Those skilled in the art can also position the monitoring device close to the counterweight frame, thereby enabling the monitoring of the distance between the counterweight frame and the counterweight buffer.
[0041] Furthermore, those skilled in the art can electrically connect the monitoring device and the control device 5, so that the distance between the counterweight frame and the counterweight buffer monitored by the monitoring device can be transmitted to the control device 5 for analysis. During the analysis, the monitoring device compares the distance between the counterweight frame and the counterweight buffer with a standard value. If the distance between the counterweight frame and the counterweight buffer exceeds a preset threshold, an alarm can be triggered by the control device 5, and at the same time, the elevator stops working and personnel carry out maintenance.
[0042] With the above-described configuration, those skilled in the art can acquire images of the traction rope 1 using an image acquisition device and monitor the distance between the counterweight frame and the counterweight buffer using a monitoring device. This can increase the accuracy of the judgment on whether the traction rope 1 is stretched, thereby improving the safety of elevator operation.
[0043] In the above configuration, those skilled in the art will set up an image acquisition device to acquire images of the state of the traction rope 1. Preferably, the image acquisition device acquires images of the state of the traction rope 1 through a camera device 3. That is, those skilled in the art can set the camera device 3 close to the traction rope 1, and the portion of the image acquired by the camera device 3 faces the traction rope 1.
[0044] The aforementioned structure allows the image acquisition device to capture a more accurate and clearer image of the traction rope 1, thereby further improving the safety of the elevator operation.
[0045] In one optional embodiment, the image acquisition device further includes an image output unit 2, which is connected to the camera device 3 via a network cable 8. The image output unit 2 is used to output the image of the traction rope 1 acquired by the camera device. More preferably, the network cable 8 can be a Cat6e cable, thereby improving the stability of image signal transmission.
[0046] With the above structure, after the camera device 3 acquires the state image of the traction rope 1, the signal of the state image of the traction rope 1 can be transmitted to the image output unit 2 through the network cable 8, thereby completing the display of the state image of the traction rope 1.
[0047] In summary, those skilled in the art can configure the image acquisition device to include an image output unit 2 and a camera device 3, thereby enabling accurate acquisition and display of the traction rope 1 status image, improving the accuracy of the traction rope 1 status inspection, and significantly enhancing the safety of elevator operation.
[0048] Preferably, the monitoring device includes a detector 4, which is an infrared detector. In this embodiment, those skilled in the art can configure the detection device to include a detector 4, and use the detector 4 to monitor the distance between the counterweight frame and the counterweight buffer.
[0049] In this embodiment, those skilled in the art can set detector 4 as an infrared detector, and monitor the distance between the counterweight frame and the counterweight buffer by infrared light, which can significantly improve the accuracy of monitoring.
[0050] Preferably, the connection between the image acquisition device, the monitoring device, and the control device also includes a power supply device 6, which is electrically connected to the image acquisition device and the monitoring device respectively, so that the image acquisition device and the monitoring device are connected in parallel.
[0051] In other words, the image acquisition device, monitoring device, and control device can be powered by the power supply device 6. The power supply device 6 is electrically connected to both the image acquisition device and the monitoring device, allowing them to operate in parallel. This parallel connection enables the image acquisition device and the monitoring device to work independently, ensuring that at least one of them remains operational, or simultaneously performs image acquisition and spacing monitoring of a single state of the traction rope 1. This significantly improves the stability of the image acquisition device and the monitoring device.
[0052] It is understood that those skilled in the art can configure the power supply device 6 as a DC24V / DC12V switching power supply. The 12V circuit of the DC24V / DC12V switching power supply is used to power the camera device 3 in the image acquisition device. The 24V circuit of the DC24V / DC12V switching power supply can be used to power the image output unit 2 and the monitoring device.
[0053] In the above embodiments, during the analysis process, the monitoring device compares the distance between the counterweight frame and the counterweight buffer with a standard value. If the distance between the counterweight frame and the counterweight buffer exceeds a preset threshold, an alarm can be triggered by the control device 5. Simultaneously, the elevator stops operating, and personnel perform maintenance. Preferably, the control device 5 is electrically connected to the alarm 7, enabling the control device 5 to trigger an alarm via the alarm 7.
[0054] Specifically, after the monitoring device analyzes that the distance between the counterweight frame and the counterweight buffer exceeds the preset threshold, the contact NC and COM on the detector 4 are activated, and the contact activation signal is transmitted to the control device 5, so that the alarm can be activated by the control device 5.
[0055] More preferably, the alarm 7 is a sound and light alarm, which can be controlled by the control device 5 to emit a buzzing sound and flashing light to sound an alarm.
[0056] In one optional embodiment, the image acquisition device includes two camera devices 3 and two image output units 2, the two camera devices 3 and the two image output units 2 are respectively signal connected, and the two camera devices 3 are connected in parallel.
[0057] Specifically, those skilled in the art can set up two camera devices 3 and two image output units 2, wherein one camera device 3 and one image output unit 2 are used to collect images of the state of the traction rope 1 at the top floor, and the other camera device 3 and the other image output unit 2 are used to collect images of the traction rope 1 at the ground floor.
[0058] In other words, two camera devices 3 and two image output units 2 can simultaneously capture images of the state of the traction rope 1 at the top floor and the bottom floor. Furthermore, the two camera devices 3 are connected in parallel, allowing for independent capture of images of the traction rope 1 at the top floor and the bottom floor.
[0059] In one optional embodiment, the monitoring device includes two detectors 4, both of which are electrically connected to the control device 5, and the two detectors 4 are connected in parallel.
[0060] In this embodiment, those skilled in the art can set up two detectors 4 to monitor the distance between the counterweight frame and the counterweight buffer at the top floor and the bottom floor, respectively. The two detectors 4 are connected in parallel and are both electrically connected to the control device 5. That is, if either detector 4 detects that the distance between the counterweight frame and the counterweight buffer exceeds a preset threshold, the control device 5 can control the alarm 7 to sound an alarm.
[0061] Although different specific embodiments are mentioned in this application, this application is not limited to the situations described in industry standards or embodiments. Slightly modified implementations based on certain industry standards or custom methods or embodiments can also achieve the same, equivalent, or similar, or predictable, implementation effects as the above embodiments. Embodiments applying these modified or modified data acquisition, processing, output, and judgment methods still fall within the scope of optional implementations of this application.
[0062] Although this application has been described by way of examples, those skilled in the art will know that this application has many modifications and variations without departing from the spirit of this application, and it is intended that the appended embodiments include these modifications and variations without departing from this application.
Claims
1. An elevator traction rope detection system, characterized in that, include: A counterweight device, the counterweight device including a counterweight frame and a counterweight buffer, the counterweight frame being connected to the car via a traction rope, and the counterweight buffer being located below at least a portion of the counterweight frame; An image acquisition device is positioned near the traction rope. The image acquisition device includes a camera and an image output unit. The camera and the image output unit are electrically connected. The camera is used to acquire the state of the traction rope. A monitoring device is installed at the bottom of the counterweight frame. The monitoring device is used to monitor the distance between the counterweight frame and the counterweight buffer. The monitoring device is electrically connected to the control device.
2. The elevator traction rope detection system according to claim 1, characterized in that, The control device stops the car after the monitoring device detects that the distance between the counterweight frame and the counterweight buffer exceeds a preset threshold.
3. The elevator traction rope detection system according to claim 2, characterized in that, The image output unit is connected to the camera device via a network cable, and the image output unit is used to output the image of the traction rope and the traction rope image captured by the camera device.
4. The elevator traction rope detection system according to claim 3, characterized in that, The monitoring device includes a detector, which is an infrared detector.
5. The elevator traction rope detection system according to claim 1, characterized in that, It also includes a power supply device, which is electrically connected to both the image acquisition device and the monitoring device, so that the image acquisition device and the monitoring device are connected in parallel.
6. The elevator traction rope detection system according to claim 1, characterized in that, The control device is electrically connected to the alarm, and is used to enable the control device to trigger an alarm through the alarm.
7. The elevator traction rope detection system according to claim 5, characterized in that, The image acquisition device includes two camera devices and two image output units. The two camera devices and the two image output units are respectively signal-connected, and the two camera devices are connected in parallel.
8. The elevator traction rope detection system according to claim 5, characterized in that, The monitoring device includes two detectors, both of which are electrically connected to the control device and are connected in parallel.
9. The elevator traction rope detection system according to claim 6, characterized in that, The alarm is set as an audible and visual alarm.
10. The elevator traction rope detection system according to claim 3, characterized in that, The network cable is a Cat6e cable.