Elevator counterweight steel wire rope groove disengaging detection device

By designing a detection device in the elevator that includes a base plate, a contact plate, and a tension spring, the contact plate extends elastically to trigger a switch to stop the elevator, thus solving the problem of the counterweight wire rope derailing and ensuring the safe operation of the elevator.

CN223823120UActive Publication Date: 2026-01-23GUANGDONG XIZI ELEVATOR CO LTD
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Patent Information

Application Number
CN202520148038.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-01-23
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

The lack of an effective detection device for counterweight wire rope derailment in existing elevators leads to abnormal elevator operation and poses safety hazards.

Method used

Design a detection device including a base plate, a contact plate, a tension spring, and a cover plate. The YF-1375 switch is triggered by the elastic extension of the contact plate to stop the elevator and prevent the counterweight wire rope from derailing.

Benefits of technology

It enables timely detection and stopping of heavy steel wire rope derailment, avoiding safety accidents, and is easy to install and highly reliable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an elevator counterweight steel wire rope out-of-groove detection device, which comprises a bottom plate, a touch plate and a tension spring are arranged on the bottom plate, two ends of the touch plate are fixed on the bottom plate through bolts, one end of the tension spring is fixedly connected onto the bottom plate, and the other end of the tension spring is fixedly connected onto the touch plate. The bottom plate is fixedly connected with a cover plate, and the touch plate is arranged between the bottom plate and the cover plate. Safety risks caused by the fact that the elevator counterweight steel wire rope is disengaged from the groove are effectively avoided. The counter-weight switch device is convenient to install, the counter-weight switch device is installed on a counter-weight wheel cover, the YF-1375 switch is installed on a car roof for a rear counter-weight shaft, and the YF-1375 switch is installed on a support for a side counter-weight shaft. When the counterweight steel wire rope is disengaged from the groove, the device can be triggered, and the touch plate of the device can extend out to trigger the YF-1375 switch to stop the elevator, so that the protection effect is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of detection device technology, specifically to a detection device for elevator counterweight steel wire rope derailment. Background Technology

[0002] Elevators are widely used in modern buildings, and the counterweight wire rope is a key component of the elevator system. It connects to the car via a traction sheave, enabling smooth elevator movement. However, during long-term elevator operation, due to factors such as wire rope wear, sheave failure, and installation errors, the counterweight wire rope may derail. Once derailment occurs, it not only leads to abnormal elevator operation but can also cause serious safety accidents, such as car falls or overshooting, posing a significant threat to the lives and property of passengers. Currently, there is no effective detection device for elevator counterweight wire rope derailment. Therefore, it is necessary to develop a simple, accurate, and highly reliable elevator counterweight wire rope derailment detection device. Utility Model Content

[0003] This invention provides a device for detecting the derailment of elevator counterweight steel wire rope, in order to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the solution of this utility model is as follows:

[0005] An elevator counterweight wire rope derailment detection device includes a base plate, a contact plate and a tension spring are provided on the base plate, the two ends of the contact plate are fixed to the base plate by bolts, one end of the tension spring is fixedly connected to the base plate and the other end is fixedly connected to the contact plate, a cover plate is fixedly connected to the base plate, and the contact plate is placed between the base plate and the cover plate.

[0006] Preferably, the touch plate has a sliding groove.

[0007] Preferably, a limit hook is fixedly provided on the contact plate.

[0008] Preferably, the base plate, contact plate, and cover plate are all made of stainless steel.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. To avoid the safety risks caused by the elevator counterweight steel wire rope derailing;

[0011] 2. Easy installation: This utility model is installed on the counterweight wheel cover. For rear counterweight shafts, the YF-1375 switch is installed on the car top. For side counterweight shafts, the YF-1375 switch is installed on the bracket.

[0012] 3. If the counterweight wire rope derails: This will trigger the present invention, and the contact plate of the present invention will extend, triggering the YF-1375 switch to stop the elevator and play a protective role. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the triggering state of this utility model;

[0014] Figure 2 This is a schematic diagram of the normal state of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of this utility model after the cover plate has been removed;

[0016] Figure 4 This is a schematic diagram of the normal state of the present invention installed on the rear counterweight shaft layout plan;

[0017] Figure 5 This is a schematic diagram of the trigger state of the present invention installed on the rear counterweight shaft layout plan;

[0018] Figure 6 This is a schematic diagram of the normal state of the present invention installed on the side-mounted counterweight shaft layout plan;

[0019] Figure 7 This is a schematic diagram of the trigger state of the present invention installed on the side-mounted counterweight shaft layout plan. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] Reference Figure 1-3 An elevator counterweight wire rope derailment detection device includes a base plate 1, a contact plate 2 and a tension spring 3 on the base plate 1, the two ends of the contact plate 2 are fixed to the base plate 1 by bolts, one end of the tension spring 3 is fixedly connected to the base plate 1 and the other end is fixedly connected to the contact plate 2, a cover plate 4 is fixedly connected to the base plate 1, and the contact plate 2 is placed between the base plate 1 and the cover plate 4.

[0022] Specifically, the contact plate 2 is provided with a sliding groove 201. This allows the fixing bolt to pop out and reset through the circuit inside the sliding groove 201.

[0023] Furthermore, a limiting hook 5 is fixedly provided on the contact plate 2. The limiting hook 5 is used to limit the distance the contact plate 2 extends.

[0024] Furthermore, the base plate 1, the contact plate 2, and the cover plate 4 are all made of stainless steel.

[0025] The installation plan view of this utility model installed on the rear counterweight shaft is as follows: Figure 4 As shown, under normal conditions, it does not trigger contact plate 2. When the wire rope derails, it will touch contact plate 2. Contact plate 2 will spring out along the slide groove 201 due to the elastic force of the tension spring 3 set on the base plate 1 and contact plate 2. The extension distance of contact plate 2 is controlled by the limit hook, triggering the YF-1375 switch to stop the elevator and play a protective role (e.g., Figure 5 (As shown).

[0026] The installation plan view of this utility model installed on the side-mounted counterweight shaft is as follows: Figure 6 As shown, under normal conditions, it does not trigger contact plate 2. When the wire rope derails, it will touch contact plate 2. Contact plate 2 will spring out along the slide groove 201 due to the elastic force of the tension spring 3 set on the base plate 1 and contact plate 2. The extension distance of contact plate 2 is controlled by the limit hook, triggering the YF-1375 switch to stop the elevator and play a protective role (e.g., Figure 7 (As shown).

[0027] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. An elevator counterweight steel wire rope off-tracking detection device, characterized by: Includes a base plate (1), on which a contact plate (2) and a tension spring (3) are provided. The two ends of the contact plate (2) are fixed to the base plate (1) by bolts. One end of the tension spring (3) is fixedly connected to the base plate (1), and the other end is fixedly connected to the contact plate (2). A cover plate (4) is fixedly connected to the base plate (1), and the contact plate (2) is placed between the base plate (1) and the cover plate (4).

2. The elevator counterweight wire rope derailment detection device according to claim 1, characterized in that: The touch plate (2) is provided with a sliding groove (201).

3. The elevator counterweight wire rope derailment detection device according to claim 2, characterized in that: A limit hook (5) is fixedly provided on the contact plate (2).

4. The elevator counterweight wire rope derailment detection device according to claim 1, characterized in that: The base plate (1), the contact plate (2), and the cover plate (4) are all made of stainless steel.