Elevator horizontal vibration monitoring device

Abstract

The application discloses an elevator horizontal vibration monitoring device, which comprises a shell, a guide chute is arranged in the shell, and an inertia body is arranged in the guide chute and can slide along the guide chute; at least one first trigger hole and at least one second trigger hole are arranged in the side wall of the shell and are communicated with the guide chute; a signal transmitter and a signal receiver are arranged on the shell and correspond to each first trigger hole and second trigger hole; the first trigger hole and the second trigger hole are located on the light path between the signal transmitter and the signal receiver; the mechanical displacement of a steel ball in the guide chute is used to grade the light path, so that passive grading monitoring and response of the horizontal vibration degree of the elevator are realized in a mechanical sensing and photoelectric switch combination mode; the device has the advantages of simple structure, anti-interference and convenient maintenance.

Description

Technical Field

[0001] This invention relates to the field of elevator safety monitoring technology, specifically to an elevator horizontal vibration monitoring device. Background Technology

[0002] As an indispensable vertical transportation tool in modern buildings, the safety of elevator operation is directly related to the personal safety of passengers. With the continuous increase in the number of high-rise buildings and the continuous improvement of elevator operating speed, the vibration problem of elevators during operation has received increasing attention from the industry.

[0003] Horizontal vibration generated during elevator operation is a significant factor affecting passenger comfort and safety. Currently, most methods for monitoring elevator horizontal vibration rely on electronic accelerometers or displacement sensors. These sensors are susceptible to electromagnetic interference, temperature and humidity changes, and mechanical fatigue over long-term use, potentially leading to a decrease in measurement accuracy and reliability. Furthermore, some existing monitoring devices are structurally complex, inconvenient to install and maintain, and present challenges when deployed in space-constrained environments such as the elevator car or shaft. Moreover, there is still room for simplification and improvement in response speed in existing solutions for classifying and responding to vibration levels, such as distinguishing between general vibration exceeding limits and severe abnormal vibration conditions.

[0004] Therefore, an elevator horizontal vibration monitoring device is proposed to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide an elevator horizontal vibration monitoring device to solve the problems mentioned in the background art, such as the current elevator horizontal vibration monitoring mainly relies on electronic sensors that are susceptible to environmental and fatigue effects, resulting in decreased accuracy and reliability, complex structure and inconvenience for installation and maintenance in confined spaces, and the lack of room for simplification and improvement in vibration classification identification and response methods.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an elevator horizontal vibration monitoring device, comprising a housing, wherein a guide groove is provided inside the housing, and an inertial body that can slide along the guide groove is contained therein; The side wall of the housing is provided with at least one first trigger hole and at least one second trigger hole that communicate with the guide groove; The housing is also provided with a signal transmitter and a signal receiver corresponding to each of the first trigger hole and the second trigger hole, and the first trigger hole and the second trigger hole are both located on the optical path between the corresponding signal transmitter and the signal receiver.

[0007] Preferably, the inner walls of both the first trigger hole and the second trigger hole have a slope, and the inner walls slope downward from the end near the guide groove to the end away from the guide groove; both the first trigger hole and the second trigger hole are embedded with permanent magnets.

[0008] Preferably, there are two first trigger holes, symmetrically arranged with the center of the housing as a reference; there are two second trigger holes, respectively located on the side of the two first trigger holes away from the center of the housing.

[0009] Preferably, the signal transmitter is disposed on one side of the inner diameter of the housing, and the signal receiver is disposed on one side of the outer diameter of the housing, with the signal transmitter and the signal receiver respectively located on both sides of the corresponding trigger hole along its radial direction.

[0010] Preferably, both the signal transmitter and the signal receiver are fixedly connected to the housing via a self-locking assembly; the self-locking assembly includes a guide sleeve fixedly connected to the housing, the guide sleeve having at least three evenly distributed elastic strips integrally formed inside, a return spring being provided on the bottom side inside the guide sleeve, one end of the return spring abutting against a locking rod, and the end of the locking rod away from the return spring being fixedly connected to the signal transmitter and / or the signal receiver; the end of the locking rod near the return spring has a boss, and the boss and the end of the elastic strip form a limiting engagement.

[0011] Preferably, a cover is snapped onto the upper surface of the housing.

[0012] Preferably, the inertial body is a steel ball.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This elevator horizontal vibration monitoring device utilizes the mechanical displacement of steel balls in the slide groove to progressively block the light path, and achieves passive progressive monitoring and response to the degree of elevator horizontal vibration by combining mechanical sensing and photoelectric switching. It has a simple structure, is anti-interference, and is easy to maintain. The specific details are as follows: Firstly, this device, through the cooperation of the housing, guide rails, and inertial body, converts the elevator's horizontal vibration into the displacement of the inertial body along the rails. By utilizing the graded settings of the first and second trigger holes corresponding to different vibration amplitudes, it achieves the sensing and graded identification of the degree of horizontal vibration. This helps reduce reliance on electronic accelerometers or displacement sensors, thereby mitigating the potential impact of electromagnetic interference, temperature and humidity changes, and mechanical fatigue on monitoring reliability. Simultaneously, the optical path coordination between the trigger holes and the signal transmitter and receiver allows the inertial body to change the optical path state and generate a trigger signal upon entering the corresponding trigger hole. The structure is relatively simple, and the response process is direct, making it suitable for deployment in space-constrained environments such as elevator cars or shafts.

[0014] Secondly, by symmetrically distributing two first trigger holes and two second trigger holes on the housing, the device can respectively address general vibration exceeding limits and severe vibration anomalies, facilitating graded responses. For example, in cases of general vibration exceeding limits, it can alert maintenance personnel to make adjustments, while in cases of severe anomalies, it can trigger measures such as opening the nearest door, stopping operation, or automatically notifying maintenance personnel. This provides a structural foundation for improving elevator safety and the timeliness of fault handling. Simultaneously, the self-locking component facilitates the fixing and replacement of the signal transmitter and receiver, the cover structure helps protect internal components, and the steel ball, as an inertial body, has the characteristics of simple structure and direct motion response, which overall helps reduce the difficulty of installation and maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the internal structure of the middle shell; Figure 3 For the present invention Figure 2 A schematic diagram of the disassembled structure of the signal receiver and signal transmitter. Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a three-dimensional structural diagram of the guide sleeve in this invention; Figure 6 This is a cross-sectional structural diagram of the guide sleeve in this invention.

[0016] In the figure: 1. Housing; 2. Guide groove; 3. First trigger hole; 4. Second trigger hole; 5. Permanent magnet; 6. Signal receiver; 7. Signal transmitter; 8. Self-locking assembly; 801. Guide sleeve; 802. Elastic strip; 803. Return spring; 804. Locking rod; 9. Inertial body; 10. Cover. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-6 The present invention provides a technical solution: an elevator horizontal vibration monitoring device, which is mainly used for detecting, classifying and identifying and warning of abnormalities in the horizontal vibration amplitude during elevator operation.

[0019] The overall structure of this invention includes a housing 1, which serves as the main support and mounting base for the device, providing a foundation for the installation and positioning of the other functional components. A horizontally arranged guide groove 2 is formed inside the housing 1, and an inertial body 9, which can slide freely along its length, is housed within the guide groove 2. In this embodiment, the inertial body 9 is made of steel balls. Steel balls have a smooth surface, low coefficient of friction, and sensitive motion response, enabling them to generate corresponding inertial displacements following the horizontal vibrations of the elevator. This provides a relatively intuitive and accurate feedback on the amplitude of the elevator's horizontal vibrations, meeting the dynamic response requirements of vibration monitoring.

[0020] The side wall of the housing 1 is provided with a set of trigger holes that communicate with the guide groove 2. The set of trigger holes includes at least one first trigger hole 3 and at least one second trigger hole 4. In this embodiment, there are two first trigger holes 3, which are symmetrically arranged with the central axis of the housing 1 as a reference. Similarly, there are two second trigger holes 4, which are arranged one-to-one on the side of each first trigger hole 3 away from the center of the housing 1. Through the above-mentioned layered and symmetrical hole layout, the first trigger holes 3 can be used to deal with small-amplitude vibration exceeding the standard condition of the elevator, and the second trigger holes 4 can be used to deal with large-amplitude vibration abnormal condition of the elevator, thereby realizing the graded identification and monitoring of the horizontal vibration amplitude of the elevator.

[0021] Furthermore, the inner walls of both the first trigger hole 3 and the second trigger hole 4 are provided with an inclined slope structure, with the inner wall of each trigger hole inclined downwards from the end closer to the guide groove 2 to the end farther away from the guide groove 2. Simultaneously, a permanent magnet 5 is embedded and fixed inside each of the first trigger hole 3 and the second trigger hole 4. The inclined slope structure reduces the resistance to the inertial body 9 sliding into the trigger hole, facilitating the smooth entry of the inertial body 9 into the hole when the vibration amplitude reaches the corresponding threshold. The permanent magnet 5 embedded in the hole provides a moderate magnetic attraction and restraint effect on the inertial body 9 sliding into the trigger hole, effectively preventing the inertial body 9 from rebounding and detaching from the hole due to slight vibration disturbances, thus improving the stability and accuracy of vibration signal acquisition.

[0022] For each set of first trigger holes 3 and second trigger holes 4, the housing 1 is equipped with a signal transmitter 7 and a signal receiver 6. The signal transmitter 7 is located on the inner diameter side of the housing 1, and the signal receiver 6 is located on the outer diameter side of the housing 1, so that the signal transmitter 7 and signal receiver 6 are respectively positioned on the radial sides of the corresponding trigger holes, and the channel of the trigger hole is correspondingly located on the sensing light path formed by the signal transmitter 7 and signal receiver 6. When the device is normally stationary and the elevator vibration is within the normal range, the detection beam emitted by the signal transmitter 7 can penetrate the trigger hole channel and be stably received by the corresponding signal receiver 6, and the device does not output any abnormal trigger signal. When the inertial body 9 slides into the trigger hole due to vibration displacement, it can block the light path transmission, preventing the signal receiver 6 from receiving the detection beam normally, and thus outputting the corresponding vibration monitoring trigger signal to complete the vibration state identification and feedback.

[0023] Both the signal transmitter 7 and the signal receiver 6 are detachably and fixedly connected to the housing 1 via a self-locking assembly 8, facilitating subsequent inspection, replacement, and maintenance of components and effectively reducing equipment operation and maintenance costs. Specifically, the self-locking assembly 8 includes a guide sleeve 801 fixedly mounted on the housing 1. The guide sleeve 801 has at least three elastic strips 802 integrally formed inside, evenly distributed circumferentially. A return spring 803 is mounted on the bottom side inside the guide sleeve 801. A locking rod 804 abuts against the top of the return spring 803. The end of the locking rod 804 away from the return spring 803 is fixedly connected to the signal transmitter 7 and the signal receiver 6.

[0024] The locking rod 804 has an annular boss at one end near the return spring 803, which can form an axial limiting fit with the end of the elastic strip 802. During actual assembly, pressing the locking rod 804 compresses the return spring 803, while the boss at the end of the locking rod 804 presses against each elastic strip 802, causing the elastic strip 802 to expand outwards slightly. When the boss completely passes through the limiting position of the elastic strip 802, the elastic strip 802 returns to its original position due to its own elasticity, forming a reverse limiting fit on the locking rod 804. Combined with the elastic pressing action of the return spring 803, this achieves stable locking and fixing of the locking rod 804, thus completing the reliable assembly of the signal transmitter 7 and the signal receiver 6. When disassembly and maintenance are required, simply pulling the locking rod 804 again releases the limiting fit. The disassembly and assembly operations are simple, and the overall assembly stability is good.

[0025] A cover 10 is fitted onto the upper end face of the housing 1. The cover 10 can seal and protect the core motion and detection structures inside the housing 1, such as the guide groove 2 and the inertial body 9. The cover 10 can reduce the intrusion of external dust, moisture, and debris into the housing 1, reduce the probability of internal parts jamming, corrosion, and damage, effectively ensure the long-term stability of the device, and extend the service life of the equipment.

[0026] Working principle: Under the stable and normal operation of the elevator, the horizontal vibration amplitude of the elevator is small. The inertial body 9 only sways slightly at the initial center position of the guide slide 2 and will not enter the interior of the first trigger hole 3 and the second trigger hole 4. The optical path corresponding to each trigger hole remains unobstructed, the device has no abnormal signal output, and the elevator maintains normal operation.

[0027] When the elevator experiences a general horizontal vibration exceeding the standard during operation, the continuous horizontal vibration causes the inertial body 9 to slide along the guide rail 2, causing it to slide into the first trigger hole 3 on the corresponding side. At this time, the permanent magnet 5 temporarily attracts and limits the inertial body 9, which blocks the detection optical path corresponding to the first trigger hole 3. The signal receiver 6 cannot receive the beam signal and outputs a first-level vibration exceeding standard detection signal. After receiving this signal, the elevator control system can record the corresponding fault information and push maintenance reminder information to the maintenance terminal, reminding staff to adjust and correct the elevator vibration parameters in a timely manner. Under this condition, the elevator can maintain normal operation. After the maintenance personnel complete the adjustment and manually reset the device, the inertial body 9 returns to the initial center position of the guide rail 2, and the device re-enters the normal monitoring state.

[0028] When the elevator experiences significant horizontal vibration or vibration exceeding the standard, the large vibration amplitude can drive the inertial body 9 to slide further outward from the housing 1, eventually entering the second trigger hole 4. This blocks the detection optical path corresponding to the second trigger hole 4, causing the signal receiver 6 to output a level two severe vibration anomaly signal. Upon receiving this signal, the elevator control system can trigger preset safety protection logic, controlling the elevator to perform the nearest floor leveling and door opening action to evacuate passengers from the car. Subsequently, it locks the elevator's operating permissions, terminates elevator operation, and automatically pushes fault alarms and repair information to the maintenance terminal, avoiding safety hazards caused by abnormal vibration. The elevator can only resume normal operation after staff have investigated and eliminated the vibration fault and manually reset the device.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An elevator horizontal vibration monitoring device, comprising a housing (1), characterized in that: The housing (1) has a guide groove (2) inside, and the guide groove (2) contains an inertial body (9) that can slide along the guide groove (2). The side wall of the housing (1) is provided with at least one first trigger hole (3) and at least one second trigger hole (4) that communicate with the guide groove (2). The housing (1) is also provided with a signal transmitter (7) and a signal receiver (6) corresponding to each of the first trigger hole (3) and the second trigger hole (4). The first trigger hole (3) and the second trigger hole (4) are both located on the optical path between the corresponding signal transmitter (7) and the signal receiver (6).

2. The elevator horizontal vibration monitoring device according to claim 1, characterized in that: The inner walls of the first trigger hole (3) and the second trigger hole (4) are both sloped, and the inner walls slope downward from the end near the guide groove (2) to the end away from the guide groove (2); a permanent magnet (5) is embedded in the first trigger hole (3) and the second trigger hole (4).

3. The elevator horizontal vibration monitoring device according to claim 1, characterized in that: Two first trigger holes (3) are provided, symmetrically arranged with the center position of the housing (1) as a reference; two second trigger holes (4) are provided, respectively located on the side of the two first trigger holes (3) away from the center of the housing (1).

4. The elevator horizontal vibration monitoring device according to claim 1, characterized in that: The signal transmitter (7) is disposed on one side of the inner diameter of the housing (1), and the signal receiver (6) is disposed on one side of the outer diameter of the housing (1). The signal transmitter (7) and the signal receiver (6) are respectively located on both sides of the corresponding trigger hole along its radial direction.

5. The elevator horizontal vibration monitoring device according to claim 1, characterized in that: The signal transmitter (7) and the signal receiver (6) are both fixedly connected to the housing (1) via a self-locking assembly (8); the self-locking assembly (8) includes a guide sleeve (801) fixedly connected to the housing (1), the guide sleeve (801) has at least three evenly distributed elastic strips (802) integrally formed inside, a return spring (803) is provided on the bottom side inside the guide sleeve (801), one end of the return spring (803) abuts against a locking rod (804), the end of the locking rod (804) away from the return spring (803) is fixedly connected to the signal transmitter (7) and / or the signal receiver (6); the end of the locking rod (804) near the return spring (803) has a boss, the boss and the end of the elastic strip (802) form a limiting fit.

6. The elevator horizontal vibration monitoring device according to claim 1, characterized in that: The upper surface of the housing (1) is fitted with a cover (10).

7. The elevator horizontal vibration monitoring device according to claim 1, characterized in that: The inertial body (9) is a steel ball.

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