Elevator guide rail deformation detection device

Abstract

The utility model is suitable for the technical field of elevator guide rail detection, and provides an elevator guide rail deformation detection device which comprises a detection frame and a detection structure. The detection structure comprises two assembly seats; the detection roller slides on the two assembly seats; the sides, away from each other, of the two detection rollers are provided with reset springs, and the two detection cavities are symmetrically formed in the outer side of the detection frame. The buzzing alarm is arranged on the inner wall of the detection cavity; the ends, extending to the detection cavity, of the two reset springs are each provided with a proximity sensor. The device has high-precision and high-speed real-time monitoring capacity, accurate measurement of deformation of the elevator guide rail is ensured, the design of the guide rod and the guide plate allows flexible adjustment so as to adapt to guide rails with different sizes, the universality and the application range of the device are enhanced, the guide plate with the semi-arc-shaped section is ensured to be tightly attached to the guide rail, abrasion is reduced, and the service life of the guide rail is prolonged. And on the whole, powerful technical guarantee is provided for safe operation of the elevator.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator guide rail detection, and in particular relates to an elevator guide rail deformation detection device. Background Art

[0002] With the acceleration of urbanization and the continuous emergence of high-rise buildings, elevators have become an indispensable vertical transportation tool in people's daily lives. However, the issue of elevator safety has also surfaced, attracting great attention from the general public and relevant departments. Elevator guide rails, as the core components of elevator operation, are responsible for supporting and guiding the up and down movement of the elevator car. Their stability and safety are directly related to the overall performance and safety of the elevator.

[0003] During long-term use, the guide rails of elevators not only have to bear the weight of the elevator car and passengers, but also face the impact and vibration during starting, braking and emergency situations. These external factors can easily cause deformation, wear or fatigue damage to the guide rails. Once these problems occur in the guide rails, it will not only affect the smooth operation of the elevator, but may also cause serious safety accidents.

[0004] Traditional methods for detecting elevator guide rail deformation mostly rely on manual measurement and visual inspection. This method is not only inefficient, but also difficult to ensure measurement accuracy. Due to the limitations of the human eye and manual measurement, it is often difficult to accurately capture the slight deformation and wear of the guide rail; therefore, it is difficult to detect and deal with potential safety hazards in a timely manner. Utility Model Content

[0005] The utility model provides an elevator guide rail deformation detection device, aiming to solve the problem that traditional elevator guide rail deformation detection methods mostly rely on manual measurement and visual inspection, which is not only inefficient, but also difficult to ensure measurement accuracy and accurately capture the slight deformation and wear of the guide rail; therefore, it is difficult to timely discover and deal with potential safety hazards.

[0006] The utility model is implemented as follows: an elevator guide rail deformation detection device comprises a detection frame, which is arranged in a T shape; a detection structure arranged at the lower position of the detection frame; wherein the detection structure comprises: two assembly seats symmetrically arranged on the inner wall of the detection frame; detection rollers sliding on the two assembly seats; a reset spring is arranged on the side of the two detection rollers away from each other, and a damper is arranged in the two reset springs; two detection cavities are symmetrically arranged on the outer side of the detection frame, and the two detection cavities are respectively connected with the corresponding assembly seats; a buzzer alarm is arranged on the inner wall of the two detection cavities; and a proximity sensor is arranged on one end of the two reset springs extending to the detection cavity.

[0007] Preferably, a limiting channel for the guide rail to slide is provided in the middle of the detection frame, guide rods are threadedly fitted on both sides of the detection frame, and guide plates are provided on opposite sides of the two guide rods.

[0008] Preferably, a magnet is disposed on the inner wall of the guide plate, and the cross section of the guide plate is arranged in a semi-arc shape.

[0009] Preferably, a laser distance measuring sensor is arranged above the detection frame, and a light target is arranged on the guide rail, and the light target is electrically connected to the laser distance measuring sensor.

[0010] Preferably, a fastening ring is threadedly fitted on one side of the guide rod away from the guide plate.

[0011] Preferably, the cross section of the limiting channel is U-shaped.

[0012] Preferably, a controller is provided on the outer side of the assembly seat, and the controller is electrically connected to the laser ranging sensor, the buzzer alarm and the proximity sensor.

[0013] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0014] First, this device has high real-time and accuracy. By combining laser ranging sensors and proximity sensors, it can realize real-time and accurate monitoring of the deformation of elevator guide rails. The high precision and high speed characteristics of the laser ranging sensor enable it to provide real-time data on the deformation of the guide rails, while the proximity sensor can sense the slight changes between the guide rails and the rollers, and trigger an alarm when the preset threshold is exceeded. This real-time and accuracy helps to detect deformation problems of elevator guide rails in a timely manner and take corresponding measures to ensure the safe operation of the elevator.

[0015] Second: The device has high adaptability and adjustability. The guide rod and guide plate in the device are designed with adjustment function, which can adapt to elevator guide rails of different diameters. This adjustability not only improves the versatility and flexibility of the detection device, but also expands its application range, making it suitable for elevator guide rails of various specifications. In addition, the semi-arc cross-section design of the guide plate can better adapt to the shape of the elevator guide rail, ensure a close fit, reduce wear and friction, and increase stability and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the back three-dimensional structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the detection frame and guide rail position structure of the utility model;

[0019] Figure 4 It is a front structural schematic diagram of the utility model;

[0020] In the figure: 1. detection frame; 201. assembly seat; 202. proximity sensor; 203. detection roller; 204. reset spring; 205. detection chamber; 206. buzzer alarm; 3. limit channel; 4. guide rod; 5. guide plate; 6. magnet; 7. laser ranging sensor; 8. fastening ring; 9. controller; 10. guide rail. DETAILED DESCRIPTION

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0022] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] The utility model provides a device for detecting the deformation of an elevator guide rail. Figure 1-4 As shown, it includes a detection frame 1, which is arranged in a T shape; a detection structure is arranged at the lower position of the detection frame 1; wherein the detection structure includes: two assembly seats 201 symmetrically arranged on the inner wall of the detection frame 1; a detection roller 203 sliding on the two assembly seats 201; a reset spring 204 is arranged on the side of the two detection rollers 203 away from each other, and a damper is arranged in the two reset springs 204; two detection cavities 205 symmetrically arranged on the outer side of the detection frame 1, and the two detection cavities 205 are respectively connected to the corresponding assembly seats 201; a buzzer alarm 206 is arranged on the inner wall of the two detection cavities 205; and a proximity sensor 202 is arranged on one end of the two reset springs 204 extending to the detection cavity 205.

[0024] It should be noted that, since the traditional method of detecting the deformation of the elevator guide rail 10 mostly relies on manual measurement and visual inspection, this method is not only inefficient, but also difficult to ensure the measurement accuracy, and it is difficult to accurately capture the slight deformation and wear of the guide rail 10; therefore, it is difficult to timely discover and deal with potential safety hazards. The present solution can monitor the deformation of the guide rail 10 in real time and issue an alarm in time when an abnormality is found; at the same time, through the processing of software algorithms, it can realize automatic analysis and processing of measurement data, greatly improving the detection efficiency and accuracy; in addition, it also has the characteristics of strong adaptability and adjustability, and can adapt to elevator guide rails 10 of different specifications and sizes. Through simple adjustment and operation, it can realize the detection of guide rails 10 of different sizes, which greatly improves the versatility and flexibility of the device.

[0025] Specifically, in this embodiment, the scheme mainly includes a detection frame 1 and a detection structure; the device is installed on the elevator guide rail 10 to ensure that the detection frame 1 can be closely attached to the side of the elevator guide rail 10; in the initial state, the two detection rollers 203 are preloaded by the reset spring 204, so that the detection rollers 203 and the elevator guide rail 10 maintain a certain gap and do not directly contact; the purpose of this design is to avoid false triggering caused by normal vibration of the elevator guide rail 10; the damper is used to adjust the elastic force of the reset spring 204 to ensure that the rollers 203 do not move frequently when the elevator guide rail 10 vibrates slightly;

[0026] When the elevator is running normally, the elevator guide rail 10 remains relatively stable without obvious deformation; at this time, the detection roller 203 does not contact the elevator guide rail 10 due to the preload force, and therefore does not transmit any signal;

[0027] If the elevator guide rail 10 is deformed, the surface of the deformed portion of the guide rail 10 will be close to the detection roller 203; due to the deformation, the contact force between the guide rail 10 and the detection roller 203 will change, and this change will be transmitted to the proximity sensor 202 through the reset spring 204;

[0028] The proximity sensor 202 can sense small changes transmitted by the return spring 204, such as changes in force or displacement; when the sensed changes exceed a preset threshold, it indicates that the deformation of the elevator guide rail 10 has exceeded the allowable range;

[0029] Once the proximity sensor 202 detects a change exceeding the threshold, it will send a signal to the buzzer alarm 206; after receiving the signal, the buzzer alarm 206 will immediately sound an audible alarm to remind the staff that the elevator guide rail 10 may be deformed;

[0030] After hearing the alarm, the staff will conduct corresponding inspections and maintenance; if it is found that the elevator guide rail 10 is indeed deformed, it can be adjusted or replaced according to the situation to ensure the safe operation of the elevator;

[0031] By means of the elevator guide rail 10 deformation detection device, the state of the elevator guide rail 10 can be monitored in real time, and an alarm can be issued in time when deformation occurs, thereby ensuring the safe operation of the elevator.

[0032] In a further preferred embodiment of the present invention, Figure 1-2 As shown, a limiting channel 3 for the guide rail 10 to slide is provided in the middle of the detection frame 1, guide rods 4 are threadedly fitted on both sides of the detection frame 1, and guide plates 5 are provided on the opposite sides of the two guide rods 4.

[0033] In this embodiment, the guide rail 10 is placed in the limit channel 3 to ensure that the elevator guide rail 10 can stably and smoothly pass through the detection frame 1 during the detection process. The real-time spacing between the guide plate 5 and the elevator guide rail 10 is adjusted by rotating the guide rod 4. This adjustment function enables the detection device to adapt to guide rails 10 of different sizes, thereby expanding its application range.

[0034] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a magnet 6 is disposed on the inner wall of the guide plate 5 , and the cross section of the guide plate 5 is arranged in a semi-arc shape.

[0035] In this embodiment, the semi-arc-shaped cross-section of the guide plate 5 can better adapt to the shape of the elevator guide rail 10, ensuring that the guide plate 5 can fit tightly on the side of the guide rail 10, and at the same time help to disperse the contact pressure between the guide plate 5 and the guide rail 10, reduce wear and friction, and increase the stability between the guide plate 5 and the elevator guide rail 10; the magnetic force generated by the magnet 6 helps to adsorb on the metal surface of the elevator guide rail 10, and this magnetic force can reduce the gap between the guide plate 5 and the elevator guide rail 10, thereby improving the detection accuracy.

[0036] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a laser distance measuring sensor 7 is arranged above the detection frame 1 , and a light target is arranged on the guide rail 10 , and the light target and the laser distance measuring sensor 7 are electrically connected.

[0037] In this embodiment, the laser distance sensor 7 is installed above the detection frame 1. It uses laser technology to measure the distance to the target object. Since laser distance measurement has the characteristics of high precision and high speed, it can provide data on the deformation of the guide rail 10 in real time and accurately. The light target is set on the elevator guide rail 10, usually a reflecting surface or a specific mark. Its function is to reflect the laser beam emitted by the laser distance sensor 7 so that the reflected laser distance sensor 7 can receive the reflected signal. By measuring the time difference between the emission and reception of the laser, the laser distance sensor 7 can calculate the distance to the light target. Since the light target is closely connected to the guide rail 10, the deformation of the guide rail 10 will directly affect the distance between the light target and the sensor.

[0038] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a fastening ring 8 is threadedly engaged with a side of the guide rod 4 away from the guide plate 5 .

[0039] In this embodiment, the fastening ring 8 effectively prevents the guide rod 4 from loosening or displacement during operation, thereby maintaining stable contact between the guide plate 5 and the elevator guide rail 10, which helps to reduce errors and improve measurement accuracy.

[0040] In a further preferred embodiment of the present invention, Figure 1-2 As shown, the cross section of the limiting channel 3 is U-shaped.

[0041] In this embodiment, the U-shaped design provides two parallel side walls, which can fit tightly against the outer wall of the guide rod 4, thereby effectively limiting the lateral movement of the guide rod 4 in the limiting channel 3. This stability is essential for maintaining accurate alignment between the guide plate 5 and the elevator guide rail 10, and helps to improve the measurement accuracy.

[0042] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a controller 9 is disposed outside the assembly seat 201 , and the controller 9 is electrically connected to the laser ranging sensor 7 , the buzzer alarm 206 and the proximity sensor 202 .

[0043] In this embodiment, the controller 9 has preset corresponding control logic for determining whether the deformation of the elevator guide rail 10 exceeds a safety threshold. When the distance data measured by the laser ranging sensor (HCS-Q) 7 changes beyond the preset threshold compared with the preset reference data, the controller 9 will determine that the guide rail 10 has been deformed. At the same time, if the proximity sensor (E3Z-R31) 202 detects abnormal changes on the surface of the guide rail 10, it will also trigger the alarm logic of the controller 9. Once the controller (STM32F103) 9 determines that an abnormal situation has occurred, it will immediately start the buzzer alarm (12085) 206 and sound an alarm to remind the operator to pay attention and take corresponding measures.

[0044] Working principle: Place the guide rail 10 in the limit channel 3 to ensure that the elevator guide rail 10 can stably and smoothly pass through the detection frame 1 during the detection process. The real-time spacing between the guide plate 5 and the elevator guide rail 10 is adjusted by rotating the guide rod 4. This adjustment function enables the detection device to adapt to guide rails 10 of different diameters, thereby expanding its application range; the semi-arc-shaped cross-section of the guide plate 5 can better adapt to the shape of the elevator guide rail 10, ensuring that the guide plate 5 can fit tightly on the side of the guide rail 10, and at the same time help to disperse the contact pressure between the guide plate 5 and the guide rail 10, reduce wear and friction, and increase the stability between the guide plate 5 and the elevator guide rail 10; the magnetic force generated by the magnet 6 helps to adsorb on the metal surface of the elevator guide rail 10. This magnetic force can reduce the gap between the guide plate 5 and the elevator guide rail 10 and improve the detection accuracy; the fastening ring 8 effectively prevents the guide rod 4 from loosening or displacement during the working process, thereby maintaining a stable contact between the guide plate 5 and the elevator guide rail 10;

[0045] The device is installed on the elevator guide rail 10 to ensure that the detection frame 1 can fit tightly on the side of the elevator guide rail 10; the detection frame 1 slides from top to bottom under the influence of gravity. In the initial state, the two detection rollers 203 are preloaded by the reset spring 204, so that the detection rollers 203 maintain a certain gap with the elevator guide rail 10 and do not directly contact; the purpose of this design is to avoid false triggering caused by normal vibration of the elevator guide rail 10; the damper is used to adjust the elastic force of the reset spring 204 to ensure that the rollers 203 do not move frequently when the elevator guide rail 10 vibrates slightly;

[0046] When the elevator is running normally, the elevator guide rail 10 remains relatively stable without obvious deformation; at this time, the detection roller 203 does not contact the elevator guide rail 10 due to the preload force, and therefore does not transmit any signal;

[0047] If the elevator guide rail 10 is deformed, the surface of the deformed portion of the guide rail 10 will be close to the detection roller 203; due to the deformation, the contact force between the guide rail 10 and the detection roller 203 will change, and this change will be transmitted to the proximity sensor 202 through the reset spring 204;

[0048] The proximity sensor 202 can sense small changes transmitted by the return spring 204, such as changes in force or displacement; when the sensed changes exceed a preset threshold, it indicates that the deformation of the elevator guide rail 10 has exceeded the allowable range;

[0049] Once the proximity sensor 202 detects a change exceeding the threshold, it will send a signal to the buzzer alarm 206; after receiving the signal, the buzzer alarm 206 will immediately sound an audible alarm to remind the staff that the elevator guide rail 10 may be deformed;

[0050] After hearing the alarm, the staff will conduct corresponding inspections and maintenance; if it is found that the elevator guide rail 10 is indeed deformed, it can be adjusted or replaced according to the situation to ensure the safe operation of the elevator;

[0051] By means of the elevator guide rail 10 deformation detection device, the state of the elevator guide rail 10 can be monitored in real time, and an alarm can be issued in time when deformation occurs, thereby ensuring the safe operation of the elevator;

[0052] The laser distance sensor 7 is installed above the detection frame 1. It uses laser technology to measure the distance to the target object. Since laser distance measurement has the characteristics of high precision and high speed, it can provide real-time and accurate data on the deformation of the guide rail 10; the light target is set on the elevator guide rail 10, usually a reflective surface or a specific mark. Its function is to reflect the laser beam emitted by the laser distance sensor 7 so that the reflected laser distance sensor 7 can receive the reflected signal. By measuring the time difference between the emission and reception of the laser, the laser distance sensor 7 can calculate the distance to the light target. Since the light target is closely connected to the guide rail 10, the deformation of the guide rail 10 will directly affect the distance between the light target and the sensor.

[0053] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0054] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0055] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0056] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. An elevator guide rail deformation detection device, characterized in that: include: A detection frame, wherein the detection frame is arranged in a T shape; A detection structure disposed at the lower portion of the detection frame; Wherein, the detection structure comprises: Two assembly seats symmetrically arranged on the inner wall of the detection frame; A detection roller sliding on the two assembly seats; A return spring is provided on the side of the two detection rollers that are away from each other, and a damper is provided inside the two return springs; Two detection cavities are symmetrically arranged on the outside of the detection frame, and the two detection cavities are respectively connected to the corresponding assembly seats; A buzzer alarm provided on the inner walls of the two detection chambers; One end of the two return springs extending to the detection cavity is provided with a proximity sensor.

2. An elevator guide rail deformation detection device as claimed in claim 1, characterized in that: A limiting channel for the guide rail to slide is provided in the middle of the detection frame. Guide rods are threadedly fitted on both sides of the detection frame. Guide plates are provided on opposite sides of the two guide rods.

3. An elevator guide rail deformation detection device as claimed in claim 2, characterized in that: The inner wall of the guide plate is provided with a magnet, and the cross section of the guide plate is arranged in a semi-arc shape.

4. An elevator guide rail deformation detection device as claimed in claim 2, characterized in that: A laser distance measuring sensor is arranged above the detection frame, and a light target is arranged on the guide rail. The light target and the laser distance measuring sensor are electrically connected.

5. An elevator guide rail deformation detection device as claimed in claim 3, characterized in that: A fastening ring is threadedly matched on one side of the guide rod away from the guide plate.

6. An elevator guide rail deformation detection device as claimed in claim 2, characterized in that: The cross section of the limiting channel is U-shaped.

7. An elevator guide rail deformation detection device as claimed in claim 4, characterized in that: A controller is arranged on the outer side of the assembly seat, and the controller is electrically connected to the laser distance measuring sensor, the buzzer alarm and the proximity sensor.

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