Broken chain detection device for light escalator chain

Abstract

The utility model relates to the technical field of escalators, and discloses a light escalator chain breakage detection device which comprises a bottom plate, a first sliding plate is slidably arranged on the upper surface of the bottom plate, four guide rods are fixedly connected to the upper surface of the first sliding plate, and a support slidably sleeves the outer circumferential surfaces of the four guide rods. The top end of the support is fixedly connected with a camera. According to the chain breakage detection device for the light escalator chain, by arranging the camera, the controller with the built-in image analysis and processing module and the built-in communication module and the detection sensor, the running state of the chain can be monitored, information such as deformation and damage of the chain can be obtained in time, the chain is maintained in time, the chain breakage condition is effectively prevented, and the service life of the chain is prolonged. The continuous normal operation of the escalator is guaranteed, shutdown protection is carried out in time when a chain is broken accidentally, the positions and heights of the camera and the detection sensor are convenient to adjust by arranging a lead screw, an adjusting rod, a positioning ring, a sliding groove and a sliding block, and then the device is convenient to install.

Description

Technical Field

[0001] This application relates to the field of escalator technology, specifically to a chain breakage detection device for lightweight escalator chains. Background Technology

[0002] An escalator is a stationary, electrically driven device with circulating steps used to transport passengers upwards or downwards at an incline.

[0003] An existing patent (publication number: CN101643178A) discloses an escalator with a broken chain detection device. This escalator can promptly control the main unit to stop when the step chain breaks, preventing personal injury and damage to escalator components. The device includes a step chain track, in which the step chain is arranged, and a detection sensor is also arranged in the step chain track, positioned below the step chain.

[0004] The aforementioned escalator uses sensors to detect the chain, aiming to stop the escalator's main unit when the chain breaks. However, the sensors can only provide protection when the chain breaks; they cannot monitor the chain's operating status or promptly detect chain deformation or damage. Consequently, they cannot perform timely maintenance on the chain before it breaks, thus failing to prevent chain breakage and leaving room for improvement. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a lightweight escalator chain breakage detection device. This device monitors the chain's operational status, promptly acquires information on chain deformation and damage, and allows for timely chain maintenance, effectively preventing chain breakage and ensuring the escalator's continuous normal operation. This solves the problem that existing escalators can only provide stop protection when a chain breaks, failing to monitor the chain's operational status, acquire information on chain deformation and damage, and thus fail to perform timely chain maintenance before a breakage occurs, preventing its prevention.

[0006] To achieve the above objectives, this application provides the following technical solution: a chain breakage detection device for a lightweight escalator chain, comprising a base plate, a first sliding plate slidably disposed on the upper surface of the base plate, four guide rods fixedly connected to the upper surface of the first sliding plate, a bracket slidably sleeved on the outer circumferential surface of the four guide rods, a camera fixedly connected to the top of the bracket, a controller fixedly connected to the upper surface of the bracket, the controller having a built-in image analysis and processing module and a communication module, the controller being electrically connected to the escalator main unit, and a lead screw rotatably connected inside the first sliding plate, the outer circumferential surface of the lead screw being threadedly connected to the inside of the bracket.

[0007] A second sliding plate is slidably disposed on the upper surface of the base plate. An adjusting rod is fixedly connected to the upper surface of the second sliding plate. An installation ring is slidably sleeved on the outer circumference of the adjusting rod. A connecting plate is fixedly connected to the outer circumference of the installation ring. A detection sensor is fixedly connected to the end of the connecting plate away from the installation ring. Two positioning rings are threadedly connected to the outer circumference of the adjusting rod. A sliding groove is formed inside the base plate. A slider is fixedly connected to the bottom surface of both the first and second sliding plates. The slider is slidably connected to the base plate through the sliding groove. Two positioning bolts are threadedly connected to the inside of both the first and second sliding plates.

[0008] The above solution addresses the limitation of existing escalators, which can only stop the escalator when the chain breaks. They cannot monitor the chain's operational status, nor can they promptly detect chain deformation or damage. Consequently, they cannot perform timely maintenance before a chain break occurs, preventing such incidents. By installing a controller and detection sensors with cameras, built-in image analysis and processing modules, and communication modules, the solution enables monitoring of the chain's operational status, timely acquisition of information on chain deformation and damage, and prompt maintenance. This effectively prevents chain breaks, ensures the escalator's continuous normal operation, and provides timely stop protection in the event of an accidental chain break.

[0009] Furthermore, a collar is fixedly fitted onto the outer circumferential surface of each guide rod, and the collar is disposed at the top end of the guide rod.

[0010] The above solution allows the collar to limit the support as it rises, preventing it from rising excessively and detaching from the guide rod.

[0011] Furthermore, the camera is electrically connected to the controller, and the detection sensor is electrically connected to the controller.

[0012] Through the above scheme, the camera can perform real-time imaging monitoring of the chain and feed the imaging data back to the controller. The controller analyzes and processes the image information of the chain through its built-in image analysis and processing module, and sends it to an external safety monitoring platform through the communication module, so that staff can obtain the chain's operating status in a timely manner. When the controller's built-in image analysis and processing module detects deformation, damage, or other issues with the chain, it will promptly send a warning message through the communication module. At the same time, the controller will stop the escalator's main unit, allowing staff to receive the warning message and maintain the chain in a timely manner, effectively preventing chain breakage. If the chain breaks accidentally during normal operation, the broken chain will come into contact with the detection sensor, which will then feed the chain breakage information back to the controller. The controller will also send a chain breakage warning message through the communication module and shut down the escalator's main unit, ensuring the escalator's safe operation.

[0013] Furthermore, the camera and detection sensor are located at the curved section at the bottom of the escalator.

[0014] The above solution identifies the curved section as an area where escalator chains are prone to problems. Placing a camera in this section can more effectively monitor the chain's condition. When the chain breaks, it will gather towards the curved section at the bottom of the escalator under the influence of gravity, thereby triggering the detection sensor and ensuring the reliability of the sensor's activation when the chain breaks.

[0015] Furthermore, a mounting plate is fixedly connected to the outer circumference of the camera, and the outer surface of the mounting plate is provided with equally spaced lighting lamps.

[0016] The above solution provides sufficient light, enabling the camera to clearly capture the chain's condition even in low-light conditions.

[0017] Furthermore, a column is fixedly connected to the upper surface of the second slide plate, and the outer circumferential surface of the column is slidably inserted into the interior of the connecting plate.

[0018] The above scheme restricts the installation ring, preventing it from rotating. This ensures that the connecting plate and the detection sensor always move vertically, preventing the detection sensor from easily rotating and shifting, which could cause a misalignment in its relative position with the chain and improve the stability of the detection sensor during operation.

[0019] Furthermore, the slide groove has a T-shaped structure, and the slider has a T-shaped structure adapted to the slide groove.

[0020] The above solution provides a stable sliding guide for the T-shaped groove and slider, and prevents the slider from easily falling out of the groove, thereby improving the stability of the first and second skateboard movements.

[0021] Furthermore, the base plate has equidistant mounting holes inside, which are symmetrically arranged at both ends of the base plate.

[0022] The above method allows the base plate to be fixed to the appropriate position on the escalator structure using bolts through the mounting holes, facilitating the installation of the base plate and thus the installation of the device.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This lightweight escalator chain breakage detection device, through a controller and detection sensors equipped with a camera, a built-in image analysis and processing module, and a communication module, can monitor the chain's operating status, promptly acquire information such as chain deformation and damage, and perform timely chain maintenance to effectively prevent chain breakage and ensure the continuous normal operation of the escalator. It also provides timely shutdown protection in the event of an accidental chain breakage. The device incorporates a lead screw, adjusting rod, positioning ring, slide groove, and slider to facilitate adjustment of the camera and detection sensor's position and height, thereby simplifying installation and improving the device's flexibility. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0026] Figure 2 This is a structural diagram of the base plate of this application;

[0027] Figure 3 This is a diagram of the slider structure of this application;

[0028] Figure 4 This is a structural diagram of the support structure in this application;

[0029] Figure 5 This is a structural diagram of the adjusting rod in this application.

[0030] In the picture:

[0031] 1. Base plate; 2. First slide plate; 3. Guide rod; 4. Bracket; 5. Camera; 6. Controller; 7. Lead screw; 8. Second slide plate; 9. Adjusting rod; 10. Mounting ring; 11. Connecting plate; 12. Detection sensor; 13. Positioning ring; 14. Slide groove; 15. Slider; 16. Positioning bolt; 17. Collar; 18. Mounting plate; 19. Lighting lamp; 20. Column; 21. Mounting hole. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] Please see Figure 1 , Figure 2 and Figure 4This embodiment of a lightweight escalator chain breakage detection device includes a base plate 1, a first slide plate 2 slidably disposed on the upper surface of the base plate 1, four guide rods 3 fixedly connected to the upper surface of the first slide plate 2, a bracket 4 slidably sleeved on the outer circumferential surface of the four guide rods 3, a camera 5 fixedly connected to the top of the bracket 4, a controller 6 fixedly connected to the upper surface of the bracket 4, the controller 6 having a built-in image analysis and processing module and a communication module, the controller 6 being electrically connected to the escalator main unit, and a lead screw 7 rotatably connected inside the first slide plate 2, the outer circumferential surface of the lead screw 7 being threadedly connected to the inside of the bracket 4.

[0034] Please see Figure 1 , Figure 2 and Figure 5 A second sliding plate 8 is slidably disposed on the upper surface of the base plate 1. An adjusting rod 9 is fixedly connected to the upper surface of the second sliding plate 8. An installation ring 10 is slidably sleeved on the outer circumference of the adjusting rod 9. A connecting plate 11 is fixedly connected to the outer circumference of the installation ring 10. A detection sensor 12 is fixedly connected to the end of the connecting plate 11 away from the installation ring 10. Two positioning rings 13 are threadedly connected to the outer circumference of the adjusting rod 9. A sliding groove 14 is opened inside the base plate 1. A slider 15 is fixedly connected to the bottom surface of both the first sliding plate 2 and the second sliding plate 8. The slider 15 is slidably connected to the base plate 1 through the sliding groove 14. Two positioning bolts 16 are threadedly connected inside both the first sliding plate 2 and the second sliding plate 8.

[0035] Please see Figure 1 , Figure 2 and Figure 3 Each guide rod 3 has a collar 17 fixedly fitted on its outer circumference. The collar 17 is located at the top of the guide rod 3 and can limit the support 4 when it rises to prevent the support 4 from rising too much and detaching from the guide rod 3.

[0036] Please see Figure 1 , Figure 2 and Figure 4Camera 5 is electrically connected to controller 6, and detection sensor 12 is also electrically connected to controller 6. Camera 5 can perform real-time imaging monitoring of the chain and feed the imaging data back to controller 6. Controller 6 analyzes and processes the image information of the chain through its built-in image analysis and processing module, and sends it to an external safety monitoring platform through the communication module, so that staff can obtain the chain's operating status in a timely manner. When the built-in image analysis and processing module of controller 6 detects deformation, damage, or other issues with the chain, it will promptly send a warning message through the communication module. At the same time, controller 6 will stop the escalator host, allowing staff to receive the warning message and maintain the chain in a timely manner, effectively preventing chain breakage. If the chain breaks accidentally during normal operation, the broken chain will come into contact with detection sensor 12, which will then feed the chain breakage information back to controller 6. Controller 6 will also send a chain breakage warning message through the communication module and simultaneously shut down the escalator host, ensuring the safe operation of the escalator.

[0037] Please see Figure 1 , Figure 2 and Figure 3 The camera 5 and the detection sensor 12 are set at the arc section at the bottom of the escalator. The arc section is an area where the escalator chain is prone to problems. Setting the camera 5 here can more effectively monitor the chain status. When the chain breaks, it will gather at the arc section at the bottom of the escalator under the action of gravity, thereby triggering the detection sensor 12, ensuring the reliability of the detection sensor 12 when the chain breaks.

[0038] Please see Figure 1 , Figure 2 and Figure 4 A mounting plate 18 is fixedly connected to the outer circumference of the camera 5. The outer surface of the mounting plate 18 is provided with equally spaced lighting lamps 19. The lighting lamps 19 can provide sufficient light so that the camera 5 can clearly capture the chain status even in low light conditions.

[0039] Please see Figure 2 and Figure 5 The upper surface of the second slide plate 8 is fixedly connected to a column 20. The outer circumferential surface of the column 20 is slidably inserted into the interior of the connecting plate 11 to restrict the mounting ring 10 and prevent the mounting ring 10 from rotating. This causes the connecting plate 11 and the detection sensor 12 to always move vertically, preventing the detection sensor 12 from easily rotating and shifting, which would cause the relative position with the chain to shift, thus improving the stability of the detection sensor 12 during operation.

[0040] Please see Figure 1 , Figure 2 and Figure 3The slide groove 14 has a T-shaped structure, and the slider 15 has a T-shaped structure that is adapted to the slide groove 14. The T-shaped slide groove 14 and slider 15 can provide stable sliding guidance and prevent the slider 15 from easily falling out of the slide groove 14, thereby improving the stability of the movement of the first slide plate 2 and the second slide plate 8.

[0041] Please see Figure 1 and Figure 2 The base plate 1 has equidistant mounting holes 21 inside. The mounting holes 21 are symmetrically arranged at both ends of the base plate 1. The base plate 1 can be fixed to the appropriate position of the escalator structure with bolts through the mounting holes 21, which facilitates the installation of the base plate 1 and thus facilitates the installation of the device.

[0042] This embodiment of a lightweight escalator chain breakage detection device, through the installation of a camera 5, a controller 6 with a built-in image analysis and processing module and a communication module, and a detection sensor 12, can monitor the chain's operating status, promptly acquire information such as chain deformation and damage, and perform timely chain maintenance to effectively prevent chain breakage, ensuring the continuous normal operation of the escalator. It also provides timely shutdown protection in the event of an accidental chain breakage. The device incorporates a lead screw 7, an adjusting rod 9, a positioning ring 13, a sliding groove 14, and a slider 15, facilitating the adjustment of the position and height of the camera 5 and the detection sensor 12, thereby simplifying installation and improving the device's flexibility.

[0043] It should be noted that a handwheel is provided at the top of the lead screw 7, which facilitates the rotation of the lead screw 7. The two positioning rings 13 are located above and below the mounting ring 10, respectively, and play the roles of limiting and supporting the mounting ring 10, so that the mounting ring 10 stays at a certain height, thereby adjusting the height of the detection sensor 12. The bottom surface of the positioning bolt 16 contacts the upper surface of the base plate 1, and the positioning bolt 16 can be tightened to position the first slide plate 2 or the second slide plate 8 through frictional resistance.

[0044] The working principle of the above embodiments is as follows:

[0045] The detection device can be installed at an appropriate position on the curved section at the bottom of the escalator, with the detection sensor 12 positioned below the chain and the camera 5 aimed at the chain to capture images. The camera 5 can monitor the chain in real time and feed the image data back to the controller 6. The controller 6 analyzes and processes the chain image information through its built-in image analysis and processing module and sends it to an external safety monitoring platform via a communication module, allowing staff to promptly obtain the chain's operating status. When the controller 6's built-in image analysis and processing module detects deformation or damage to the chain, it will promptly send a warning message via the communication module. Simultaneously, the controller 6 will stop the escalator's main unit, allowing staff to receive the warning message and promptly maintain the chain, effectively preventing chain breakage. If the chain breaks accidentally during normal operation... When the chain breaks, it will contact the detection sensor 12. The detection sensor 12 will then send the chain break information back to the controller 6. The controller 6 will also send a chain break warning message through the communication module, and at the same time shut down the escalator host to wait for maintenance, ensuring the safe operation of the escalator. The height of the mounting ring 10 on the adjusting rod 9 can be adjusted by the positioning ring 13, thereby adjusting the height of the detection sensor 12. The position of the detection sensor 12 can be adjusted by sliding the second slide plate 8, and the second slide plate 8 can be positioned by the positioning bolt 16. The screw rod 7 can be rotated to drive the bracket 4 to rise and fall, thereby adjusting the height of the camera 5. The position of the camera 5 can be adjusted by sliding the first slide plate 2, and the first slide plate 2 can be positioned by the positioning bolt 16. The whole device is easy to adjust and install.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightweight escalator chain breakage detection device, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is slidably provided with a first slide plate (2), and four guide rods (3) are fixedly connected to the upper surface of the first slide plate (2). A bracket (4) is slidably sleeved on the outer circumferential surface of the four guide rods (3). A camera (5) is fixedly connected to the top of the bracket (4). A controller (6) is fixedly connected to the upper surface of the bracket (4). The controller (6) has a built-in image analysis and processing module and a communication module. The controller (6) is electrically connected to the escalator main unit. A lead screw (7) is rotatably connected inside the first slide plate (2). The outer circumferential surface of the lead screw (7) is threadedly connected to the inside of the bracket (4). The upper surface of the base plate (1) is slidably provided with a second sliding plate (8), and the upper surface of the second sliding plate (8) is fixedly connected with an adjusting rod (9). The outer circumferential surface of the adjusting rod (9) is slidably sleeved with an installation ring (10), and the outer circumferential surface of the installation ring (10) is fixedly connected with a connecting plate (11). The end of the connecting plate (11) away from the installation ring (10) is fixedly connected with a detection sensor (12). The outer circumferential surface of the adjusting rod (9) is threaded with two positioning rings (13). The interior of the base plate (1) is provided with a sliding groove (14). The bottom surfaces of the first sliding plate (2) and the second sliding plate (8) are both fixedly connected with sliders (15). The sliders (15) are slidably connected to the base plate (1) through the sliding grooves (14). The interiors of the first sliding plate (2) and the second sliding plate (8) are both threaded with two positioning bolts (16).

2. The chain breakage detection device for a lightweight escalator chain according to claim 1, characterized in that: Each of the guide rods (3) has a collar (17) fixedly sleeved on its outer circumference, and the collar (17) is located at the top of the guide rod (3).

3. The lightweight escalator chain breakage detection device according to claim 1, characterized in that: The camera (5) is electrically connected to the controller (6), and the detection sensor (12) is electrically connected to the controller (6).

4. The chain breakage detection device for a lightweight escalator chain according to claim 1, characterized in that: The camera (5) and the detection sensor (12) are located at the arc-shaped section at the bottom of the escalator.

5. The chain breakage detection device for a lightweight escalator chain according to claim 1, characterized in that: The outer circumferential surface of the camera (5) is fixedly connected to a mounting plate (18), and the outer surface of the mounting plate (18) is provided with equally spaced lighting lamps (19).

6. The chain breakage detection device for a lightweight escalator chain according to claim 1, characterized in that: The upper surface of the second slide plate (8) is fixedly connected to a column (20), and the outer circumferential surface of the column (20) is slidably inserted into the interior of the connecting plate (11).

7. The chain breakage detection device for a lightweight escalator chain according to claim 1, characterized in that: The groove (14) is a T-shaped structure, and the slider (15) is a T-shaped structure adapted to the groove (14).

8. The chain breakage detection device for a lightweight escalator chain according to claim 1, characterized in that: The base plate (1) has equidistant mounting holes (21) inside, and the mounting holes (21) are symmetrically arranged at both ends of the base plate (1).

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