A pit buffer compression detection and video monitoring device

Abstract

The application relates to an elevator pit buffer compression detection and video monitoring device, which comprises compression detection mechanism one, compression detection mechanism two, a video recorder, a video control system and a cloud server; the compression detection mechanism one and the compression detection mechanism two both comprise a vertical sliding assembly and a contactor, the contactor is connected with the vertical sliding assembly in wiring, the contactor is connected with the video control system in communication, and the video control system is connected with the video recorder and the cloud server in communication. The device is simple and ingenious in structure, is convenient for detection personnel to detect the elevator, does not need the detection personnel to be located in the elevator pit, can more safely and conveniently observe the buffer compression condition in the elevator pit, can guarantee the safety of the detection personnel while guaranteeing the accuracy and reliability of the detection result, can enhance the use experience of the detection personnel, and is favorable for the promotion and application of the elevator pit buffer compression detection and video monitoring device in the elevator detection equipment technical field.

Description

Technical Field

[0001] This invention relates to the field of elevator testing equipment technology, specifically a device for detecting and monitoring the compression of a buffer in an elevator pit. Background Technology

[0002] An elevator is a permanent transportation device that serves several specific floors within a building. Its car moves on at least two rigid tracks that are perpendicular to the horizontal plane or have an angle of inclination of less than 15° to the vertical. There are also escalator types, where the steps are mounted on a continuous track and run continuously. These are commonly known as escalators or moving walkways.

[0003] A vertical elevator has a car that runs between at least two vertical or inclined rigid guide rails with an angle of less than 15°. The size and structure of the car facilitate passenger entry and exit or loading and unloading of goods. Conventionally, regardless of its drive method, elevators are considered a general term for vertical transportation tools within buildings. Based on speed, they can be divided into low-speed elevators (below 4 m / s), fast elevators (4–12 m / s), and high-speed elevators (above 12 m / s). The use of elevators greatly enhances the vertical passage efficiency of high-rise buildings and has advantages such as low energy consumption, high energy efficiency, and fast lifting speed, greatly promoting the development of real estate towards super high-rise buildings.

[0004] According to the "Rules for Supervision and Periodic Inspection of Elevators" (TSG T7001—2023):

[0005] When inspecting the buffer, the limit switch (if any) and over-limit switch should be short-circuited. Run the unloaded car at the inspection speed to fully compress the buffer, and then observe whether there are any signs of breakage, plastic deformation, peeling, or damage.

[0006] When testing the traction force of an elevator under no-load conditions, the upper limit switch (if any), limit switch, and buffer plunger reset switch (if any) need to be short-circuited. The unloaded car is lifted at the inspection speed. After the counterweight is pressed on the buffer, the traction machine continues to rotate in the upward direction. Observe whether there is relative slippage between the traction sheave and the traction rope, or whether the traction machine stops rotating.

[0007] When inspecting the guide rail travel, the car or counterweight needs to be fully compressed to compress the buffer, and then the further guide travel of the guide rail to the counterweight or car needs to be measured.

[0008] When inspecting the limit position limiting device, it is necessary to check whether the limit position limiting device can function before the car or counterweight contact buffer, and whether it maintains its operational state during the compression of the buffer.

[0009] The above four items are mandatory inspection items during elevator supervision and periodic inspections. During the inspection, personnel must be arranged in the elevator pit to observe the compression of the buffer, which poses a significant risk to the personal safety of the inspection personnel in the pit. In addition, human inspection is easily affected by external interference, making it difficult to guarantee the efficiency and accuracy of the inspection results, thus affecting the user's use of the elevator. Summary of the Invention

[0010] To overcome the shortcomings of the prior art, the present invention aims to provide a device for detecting and monitoring the compression of a buffer in an elevator pit. This device has a simple and ingenious structure, which facilitates the inspection of elevators by inspectors. It also eliminates the need for inspectors to be located in the elevator pit, allowing for safer and more convenient observation of the buffer compression situation. This ensures accurate and reliable test results while protecting the safety of inspectors, enhancing their user experience, and promoting the application of the device in the field of elevator inspection equipment technology.

[0011] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: a compression detection and video monitoring device for a buffer in an elevator pit, comprising a compression detection mechanism one for detecting the car buffer, a compression detection mechanism two for detecting the counterweight buffer, a video recorder, a video control system, and a cloud server; both the compression detection mechanism one and the compression detection mechanism two include a vertical sliding component and a contactor, the contactor being wiredly connected to the vertical sliding component; the contactor being communicatively connected to the video control system, and the video control system being communicatively connected to the video recorder and the cloud server.

[0012] In a preferred embodiment of the present invention, the vertical sliding assembly includes a movable column, an elastic element, a sleeve, and a contact spring. The movable column is installed on the top of the sleeve, the elastic element is fitted onto the movable column, and the contact spring is fixed to the bottom of the movable column and connected to the contactor via a wire.

[0013] In a preferred embodiment of the present invention, the movable column and the sleeve are connected by a vertical slide rail.

[0014] In a preferred embodiment of the present invention, the upper end of the elastic element is fixedly connected to the movable column, and the lower end is fixedly connected to the sleeve.

[0015] In a preferred embodiment of the present invention, the contact spring is normally closed.

[0016] In a preferred embodiment of the present invention, the elastic element is a spring.

[0017] In a preferred embodiment of the present invention, the top of the movable column is higher than the top of the car buffer and the counterweight buffer.

[0018] As a preferred embodiment of the present invention, the video recorder is located on the shaft wall on one side of the counterweight buffer.

[0019] As a preferred embodiment of the present invention, the compression detection mechanism is disposed near the car buffer.

[0020] As a preferred embodiment of the present invention, the compression detection mechanism 2 is positioned close to the counterweight buffer.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: The elevator pit buffer compression detection and video monitoring device of the present invention has a simple and ingenious structure, low cost, and convenient operation. By setting up compression detection mechanism one and compression detection mechanism two, the compression status of the car buffer and counterweight buffer located in the elevator pit can be accurately detected. By establishing communication connection between compression detection mechanism one and compression detection mechanism two and video recorder and video control system, when the counterweight contacts the counterweight buffer or the car contacts the car buffer, the compression status of the buffer is reliably triggered by the video monitoring system and video recorder. The compression status of the buffer in the elevator pit can be observed safely and conveniently. The video monitoring recording can also be uploaded to the cloud server for easy inspection by inspectors. The inspectors do not need to be in the elevator pit, which can effectively ensure the personal safety of the inspectors and enhance the user experience of the inspectors. This is conducive to the promotion and application of the above device in the field of elevator inspection equipment technology.

[0022] Furthermore, the vertical sliding component in this invention includes a movable column, an elastic element, a sleeve, and a contact spring. The components are simple, easy to install, and are basically mechanical, which can effectively ensure the accuracy of the test results.

[0023] Furthermore, the elastic element in this invention is a spring with a simple structure and high economic practicality, which reduces the manufacturing cost of the device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a buffer compression detection and video monitoring device in an elevator pit according to an embodiment;

[0025] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0026] Figure 3 This is a schematic diagram of the structure of a buffer compression detection and video monitoring device in an elevator pit according to an embodiment;

[0027] Figure 4 This is a schematic diagram illustrating the control principle of a buffer compression detection and video monitoring device in an elevator pit, as described in this embodiment.

[0028] Reference numerals: 1. Counterweight buffer; 2. Video recorder; 3. Counterweight; 4. Car; 5. Car buffer; 6. Compression detection mechanism one; 7. Compression detection mechanism two; 8. Movable column; 9. Elastic element; 10. Vertical slide rail; 11. Contact spring; 12. Wire; 13. Contactor; 14. Hoistway wall; 15. Sleeve. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0030] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element 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 invention.

[0031] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0032] Example 1: As Figures 1 to 4 As shown, an elevator pit buffer compression detection and video monitoring device mainly consists of a compression detection mechanism 6, a compression detection mechanism 7, a video recorder 2, a video control system, and a cloud server. The compression detection mechanism 6 is used to detect the car buffer 5, and the compression detection mechanism 7 is used to detect the counterweight buffer 1. The compression detection mechanism 6 and the compression detection mechanism 7 have the same structure, both of which have a vertical sliding component and a contactor 13. The contactor 13 is connected to the vertical sliding component through a wire 12. The contactor 13 is communicatively connected to the video control system, and the video control system is communicatively connected to the video recorder 2 and the cloud server.

[0033] Specifically, to simplify the structure of the device and make it easy to install and operate, the vertical sliding assembly in this embodiment mainly consists of a movable column 8, an elastic element 9, a sleeve 15, and a contact spring 11. A mounting hole is provided at the center of the top of the sleeve 15, and the movable column 8 can be slidably installed in the mounting hole. The elastic element 9 is a simple, economical, and practical spring. By using the spring, the device can achieve self-resetting without compression, allowing for repeated use of the device. This eliminates the need for inspection personnel to enter the elevator pit for adjustment, further preventing the inspection personnel in the pit from being struck or crushed by the car 4 and counterweight 3, thus protecting their personal safety. Specifically, the spring is fitted onto the movable column 8. To ensure the effectiveness and performance of the spring and prevent it from slipping during use, in this embodiment, the upper end of the spring is fixed to the top of the movable column 8 by welding or other means. Similarly, the lower end of the spring is fixed to the top of the sleeve 15 by welding or other means, thus completing the spring installation. Then, the contact spring 11 is fixed to the bottom of the movable column 8 and connected to the contactor 13 via wire 12. The contact spring 11 is normally closed.

[0034] Since the operation of the aforementioned compression detection mechanism 6 and compression detection mechanism 7 requires time, and the transmission of their signals to the video recorder 2 and the video control system, as well as the start of recording, also requires time, in order to ensure the accuracy of the detection results, the top of the aforementioned movable column 8 in this embodiment is slightly higher than the top of the buffer of the detection mechanism. Specifically, the top of compression detection mechanism 6 is slightly higher than the top of the aforementioned car buffer 5, and the top of the aforementioned compression detection mechanism 7 is slightly higher than the top of the aforementioned counterweight buffer 1. Therefore, during the detection process, the aforementioned compression detection mechanism 6 and compression detection mechanism 7 are first compressed by the car or the counterweight, that is, the operation first triggers the video recorder 2, the video control system, and the cloud server, and then compresses the car buffer 5 or the counterweight buffer 6 to ensure the integrity of the data.

[0035] To reduce wear and tear on the car 4 and counterweight 3, ensure their service life, and reduce user operating costs, anti-collision plates are usually installed at the bottom of the car 4 and counterweight 3.

[0036] To ensure the stability of the video recorder 2, it is fixed to the shaft wall 14 on one side of the counterweight buffer 1, and installed close to the counterweight buffer 1 and the car buffer 5. The compression detection mechanism 1 6 is positioned close to the car buffer 5. The compression detection mechanism 2 7 is positioned close to the counterweight buffer 1.

[0037] To prevent the movable column 8 from getting stuck or obstructed during its vertical sliding, thus affecting the detection effect, this embodiment provides a vertical slide rail 10 between the movable column 8 and the sleeve 15. Specifically, a slider can be installed on the sleeve 15, and the vertical slide rail 10 is slidably mounted on the slider. The movable column 8 is then fixedly connected to the vertical slide rail 10, and the movement of the vertical slide rail 10 drives the movable column 8 to move up and down. The centerline of the movable column 8 and the centerline of the sleeve 15 are on the same straight line, further ensuring the stability of the movable column 8's movement on the sleeve 15.

[0038] Before the car 4 moves downward and contacts the car buffer 5, the car 4 or its bottom anti-collision plate first contacts the compression detection mechanism 6, causing the movable column 8 in the compression detection mechanism 6 to move downward along the vertical guide rail 10 in the compression detection mechanism 6, compressing the spring in the compression detection mechanism 6. At the same time, the contact spring 11 of the compression detection mechanism 6 disengages from the normally closed circuit, triggering the contactor 13 in the compression detection mechanism 6. Through the communication connection, the video recorder 2 is controlled to start working. After the above actions are completed or the spring is compressed to the appropriate position, the car 4 returns to the normal position. Under the elastic action of the spring, the movable column 8 of the compression detection mechanism 6 moves upward along the vertical guide rail 10 in the compression detection mechanism 6. The contact spring 11 in the compression detection mechanism 6 opens the normally closed circuit, triggering the contactor 13 in the compression detection mechanism 6, ending the recording work of the video recorder 2, and uploading the relevant video recording to the cloud server. The inspection personnel can view the inspection data through the cloud server without being located in the elevator pit, thus ensuring the personal safety of the inspection personnel.

[0039] Before the counterweight 3 moves downward and contacts the counterweight buffer 1, the counterweight 3 or the anti-collision plate at the bottom of the counterweight 3 first contacts the compression detection mechanism 7, causing the movable column 8 in the compression detection mechanism 7 to move downward along the vertical guide rail 10 in the compression detection mechanism 7, compressing the spring in the compression detection mechanism 7. At the same time, the contact spring 11 in the compression detection mechanism 7 disengages from the normally closed circuit, triggering the contactor 13 in the compression detection mechanism 7. Through the communication connection, the video recorder 2 is controlled to start working. After the above actions are completed or the spring is compressed to the appropriate position, the counterweight 3 returns to its normal position. Under the elastic action of the spring in the compression detection mechanism 7, the movable column 8 in the compression detection mechanism 7 moves upward along the vertical guide rail 10 in the compression detection mechanism 7. The contact spring 11 in the compression detection mechanism 7 opens the normally closed circuit, triggering the contactor 13 in the compression detection mechanism 7, ending the recording work of the video recorder 2, and uploading the relevant video recording to the cloud server. Similarly, the inspection personnel can view the inspection data through the cloud server without being located in the elevator pit, thus ensuring the personal safety of the inspection personnel.

[0040] Example 2: The difference between this example and Example 1 lies in that: the elevator pit buffer compression detection and video monitoring device in this example uses spring seats installed at the top of the movable column 8 and the top of the sleeve 15. The spring seats have a lock-like structure, allowing one end of the spring to be fastened to the spring seat at the top of the movable column 8 and the other end to be fastened to the spring seat at the top of the sleeve 15, thus achieving a detachable connection of the spring. When the spring is damaged, it can be replaced individually. Compared with replacing the entire detection device, the replacement cost is lower, while extending the overall service life of the detection device and reducing detection costs, which is beneficial for the promotion and application of the above device in the market.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention; therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0042] Although this document frequently uses the following reference numerals from the figures: 1. Counterweight buffer; 2. Video recorder; 3. Counterweight; 4. Car; 5. Car buffer; 6. Compression detection mechanism one; 7. Compression detection mechanism two; 8. Movable column; 9. Elastic element; 10. Vertical slide rail; 11. Contact spring; 12. Wire; 13. Contactor; 14. Hoistway wall; 15. Sleeve, etc., the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A device for detecting and monitoring the compression of a buffer in an elevator pit, characterized in that: The system includes a compression detection mechanism one (6) for detecting the car buffer (5), a compression detection mechanism two (7) for detecting the counterweight buffer (1), a video recorder (2), a video control system, and a cloud server; both the compression detection mechanism one (6) and the compression detection mechanism two (7) include a vertical sliding assembly and a contactor (13), and the contactor (13) is wiredly connected to the vertical sliding assembly; the vertical sliding assembly includes a movable column (8), an elastic element (9), a sleeve (15), and a contact spring (11), and the movable column (8) is installed on the sleeve (15). 5) At the top, the elastic element (9) is fitted onto the movable column (8), the contact spring (11) is fixed to the bottom of the movable column (8) and connected to the contactor (13) via a wire (12), the movable column (8) and the sleeve (15) are connected via a vertical slide rail (10), the top of the movable column (8) is higher than the top of the car buffer (5) and the counterweight buffer (1), the contactor (13) is communicatively connected to the video control system, and the video control system is communicatively connected to the video recorder (2) and the cloud server.

2. The elevator pit buffer compression detection and video monitoring device according to claim 1, characterized in that: The upper end of the elastic element (9) is fixedly connected to the movable column (8), and the lower end is fixedly connected to the sleeve (15).

3. The elevator pit buffer compression detection and video monitoring device according to claim 2, characterized in that: The contact spring (11) is normally closed.

4. The elevator pit buffer compression detection and video monitoring device according to claim 1, characterized in that: The elastic element (9) is a spring.

5. The elevator pit buffer compression detection and video monitoring device according to claim 1, characterized in that: The video recorder (2) is located on the shaft wall (14) on one side of the counterweight buffer (1).

6. The elevator pit buffer compression detection and video monitoring device according to claim 1, characterized in that: The compression detection mechanism (6) is positioned near the car buffer (5).

7. The elevator pit buffer compression detection and video monitoring device according to claim 1, characterized in that: The compression detection mechanism 2 (7) is positioned close to the counterweight buffer (1).

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