Steel wire rope breakage detection device
By using a mechanical linkage structure of the rope head plate, mounting bracket, and sensing plate, the problem of complex structure and high cost of existing wire rope breakage detection devices is solved, enabling timely detection of small strand breaks and improving the safety and adaptability of elevator operation.
Patent Information
- Application Number
- CN202520555670.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing wire rope breakage detection devices are complex in structure, difficult to detect small strand breaks in a timely manner, and costly, making them unsuitable for the diverse needs of different elevator models.
It adopts a mechanical linkage structure of rope end plate, mounting bracket, induction plate and induction switch. The spring rebound pushes the induction plate to trigger the induction switch, so as to realize the timely detection of wire rope breakage.
The simplified structure of the detection device reduces installation and maintenance costs, improves detection sensitivity and reliability, adapts to different elevator models, and ensures safe elevator operation.
Smart Images
Figure CN223792718U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator testing technology, specifically to a wire rope breakage detection device. Background Technology
[0002] In the field of elevator inspection, the safety of wire rope, as a core component for load-bearing and transmission, is paramount. Current technologies for wire rope breakage detection primarily employ tension sensors, vibration sensors, or visual inspection systems. For example, some devices detect breakage by monitoring changes in wire rope tension; however, such methods lack sensitivity for small-strand breaks or scenarios with insignificant tension changes, easily leading to missed detections. Furthermore, traditional mechanical detection devices are complex in structure, have high installation and maintenance costs, and are susceptible to environmental vibrations or dust interference, posing a risk of false alarms. Other solutions rely on electronic sensor arrays, which can improve accuracy, but their circuit design is complex and costly, and they have stringent installation requirements, making them difficult to adapt to the diverse needs of different elevator models. Utility Model Content
[0003] The present invention aims to provide a wire rope breakage detection device to solve the problems of existing wire rope breakage detection devices having complex installation structures and being unable to detect abnormal situations such as small strand breakage in wire ropes in a timely manner.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a wire rope breakage detection device, including a rope end plate, a mounting bracket connected to the top of the rope end plate, the mounting bracket being located on the side of the rope end plate connected to the spring, an induction switch connected to one side of the top of the mounting bracket, and an induction plate connected to the other side of the top of the mounting bracket, one end of the induction plate being located at the top of the spring, and the other end of the induction plate being located at the top of the sensor of the induction switch.
[0005] The working principle of this invention is as follows: When the steel wire rope breaks or a small strand breaks during elevator operation, the spring of the rope end device will rebound, pushing one end of the sensing plate upward. The other end of the sensing plate will trigger the induction switch, sending a signal to indicate that the steel wire rope has malfunctioned. The entire process is achieved through mechanical linkage, with a simple structure, convenient installation, and no interference with other elevator structures. It can detect the breakage of the steel wire rope in a timely and accurate manner, ensuring the safe operation of the elevator.
[0006] The beneficial effects of this utility model are as follows: 1. The mechanical linkage structure of "mounting bracket + induction plate" simplifies the complex design of traditional electronic detection systems and solves the problem of structural redundancy in existing technologies. 2. The direct connection between the mounting bracket and the rope head plate is compatible with various elevator models, reducing modification costs; the design of the induction plate and induction switch reduces environmental interference and improves reliability. 3. This utility model can detect small strand fractures in real time, filling the gap in existing technologies for detecting minute fractures and significantly improving elevator operation safety. 4. This utility model has a simple structure and is easy to maintain, making it suitable for large-scale promotion and meeting the elevator industry's demand for efficient and low-cost detection devices.
[0007] Furthermore, the mounting bracket is U-shaped. This U-shaped bracket design enhances structural stability, facilitates installation in confined spaces, and adapts to different elevator layouts.
[0008] Furthermore, the end of the mounting bracket connected to the sensing plate is higher than the other end. This height difference design optimizes the lever effect of the sensing plate, amplifies the minute displacement of the spring, and improves detection sensitivity.
[0009] Furthermore, the inductive switch is connected to the mounting bracket via a miniature bracket. Fixing the inductive switch with the miniature bracket ensures stable signal transmission and prevents false triggering due to vibration.
[0010] Furthermore, the sensing plate is seamlessly fitted to the top of the spring. This seamless fit eliminates mechanical gaps, reduces errors, ensures accurate and reliable detection, and avoids missed or false alarms.
[0011] Furthermore, a gap is left between the sensing plate and the sensor of the inductive switch. This gap further improves the accuracy of the detection. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of a wire rope breakage detection device according to the present invention. Detailed Implementation
[0013] The following detailed description illustrates the specific implementation method:
[0014] The reference numerals in the accompanying drawings include: 1. Induction plate; 2. Miniature bracket; 3. Rope end plate; 4. Induction switch; 5. Mounting bracket.
[0015] The basic implementation examples are as follows: Figure 1As shown: A wire rope breakage detection device includes a rope end plate 3, a sensing plate 1, and a mounting bracket 5. The mounting bracket 5 is U-shaped, with its left end higher than its right end. The mounting bracket 5 is fixedly connected to the top of the rope end plate 3 by bolts. The mounting bracket 5 is located on the right side of the rope end plate 3 where a spring is provided. A miniature bracket 2 is connected to the bottom of the top right end of the mounting bracket 5. A sensor of the induction switch 4 is fixedly connected to the miniature bracket 2. The sensor of the induction switch 4 is located at the top right end of the mounting bracket 5. The middle part of the sensing plate 1 is fixedly connected to the top left end of the mounting bracket 5 by bolts. The left end of the sensing plate 1 is located at the top of the spring, and the sensing plate 1 fits seamlessly with the top of the spring. The right end of the sensing plate 1 is located at the top of the sensor of the induction switch 4, and there is a gap between the sensing plate 1 and the sensor of the induction switch 4.
[0016] The specific implementation process is as follows: When the wire rope is in a normal state, the spring maintains a certain amount of compression, so that one end of the induction plate 1 is tightly attached to the top of the spring, and the other end is located at the top of the sensor of the induction switch 4. At this time, the induction switch 4 is not triggered, and the elevator operates normally. When the elevator wire rope breaks or a small strand breaks, the spring of the rope end device will rebound upward due to the change in tension. When the spring rebounds, it pushes the induction plate 1 installed above it to move upward. The other end of the induction plate 1 is connected to the induction switch 4. When the induction plate 1 is pushed up by the spring, its other end will trigger the induction switch 4, causing the induction switch 4 to send an electrical signal. This signal can immediately notify the elevator control system of the abnormality of the wire rope, thereby realizing a rapid alarm or shutdown. The entire device is fixed with bolts, which is easy to install. The distance between the induction switch 4 and the induction plate 1 is adjustable to ensure sensitive and reliable detection, while not interfering with the normal operation of other elevator structures.
[0017] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A wire rope break detection device comprising a tail plate, characterised in that: The top end of the rope head plate is connected with a mounting bracket, the mounting bracket is located on the side of the rope head plate connected with the spring, the top end of the mounting bracket is connected with a sensing switch on one side, and the top end of the mounting bracket is connected with a sensing plate on the other side, one end of the sensing plate is located at the top end of the spring, and the other end of the sensing plate is located at the top end of the sensor of the sensing switch.
2. A broken wire detection device for a steel wire rope according to claim 1, characterized in that The mounting bracket is "U"-shaped.
3. A broken wire detection device for a steel wire rope according to claim 2, characterized in that The end of the mounting bracket connected with the sensing plate is higher than the other end.
4. A broken wire detection device for a steel wire rope according to claim 3, characterized in that: The sensing switch is connected on the mounting bracket through a micro bracket.
5. A broken wire detection device for a steel wire rope as defined in claim 4, characterized in that The sensing plate is seamlessly attached to the top end of the spring.
6. A broken wire detection device for a steel wire rope according to claim 5, characterized in that The sensing plate and the sensor of the sensing switch leave a gap.