A rope breakage detection device for a platform lift safety gate arrangement

Abstract

The utility model relates to urban rail transit platform safety protection technical field discloses a kind of rope break detection device for platform lifting safety door device, comprising: first lifting structure, second lifting structure, sliding connection structure, rope and rope break detection sensor, first lifting structure and second lifting structure are oppositely arranged, sliding connection structure is installed in the side of first lifting structure close to second lifting structure, the side wall of sliding connection structure is fixedly installed with sensing metal sheet, one end of rope is installed on sliding connection structure, other end is connected with second lifting structure, and rope break detection sensor is installed on first lifting structure corresponding sliding connection structure;Rope break detection sensor is used to detect the position of sensing metal sheet. Through the above setting, the automatic monitoring of the rope state is realized, and an alarm can be sent immediately once the rope breaks or is severely sagging, greatly improving the detection rate of the platform safety system, and the required wiring harness can be greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of urban rail transit platform safety protection technology, specifically to a broken rope detection device for platform lifting safety door devices. Background Technology

[0002] With the rapid development of urban rail transit, platform screen door systems have become a core facility for ensuring passenger safety. Relevant train platforms are equipped with platform screen door devices to ensure the safety of passengers waiting on the platform, and the tensioning mechanism allows for rapid tightening of the ropes.

[0003] However, the safety performance of such advanced rope safety gate systems, and even traditional rope protection devices, is highly dependent on the integrity and tension of the rope itself. During long-term use, ropes may sag or even break due to fatigue, wear, accidental pulling, or environmental corrosion.

[0004] Currently, rope condition checks mostly rely on regular manual inspections, which is not only inefficient but also fails to enable timely detection and early warning of faults, making it difficult to eliminate safety risks caused by rope breakage in a timely manner. Utility Model Content

[0005] In view of this, the present invention provides a rope breakage detection device for platform lifting safety door devices, in order to solve the problem that the inspection of rope condition mostly relies on manual periodic inspection, which is not only inefficient, but also unable to achieve timely detection and early warning of faults, and difficult to eliminate the safety risks caused by rope breakage in a timely manner.

[0006] This utility model provides a rope breakage detection device for platform lifting safety door devices, comprising: A first lifting structure and a second lifting structure are arranged opposite to each other; A sliding connection structure is installed on the side of the first lifting structure near the second lifting structure; an inductive metal sheet is fixedly installed on the side wall of the sliding connection structure. A rope, one end of which is mounted on the sliding connection structure and the other end of which is connected to the second lifting structure; the sliding connection structure can be tightened by the rope to drive the sensing metal plate to move to a first position; the rope breaks to reset the sliding connection structure and push the sensing metal plate to move to a second position. A rope breakage detection sensor is installed on the first lifting structure corresponding to the sliding connection structure; the rope breakage detection sensor is used to detect the position of the sensing metal plate.

[0007] Beneficial effects: It enables automatic monitoring of rope status, and can immediately issue an alarm in the event of rope breakage or severe sagging, greatly improving the detection rate of the platform safety system. Furthermore, through the combination of inductive metal plates and rope breakage detection sensors, there is no need for telescopic spring cables or cable chains, which can greatly reduce the required wiring harness.

[0008] In one optional implementation, the sliding connection structure includes: A fixing member is installed at the end of the rope away from the second lifting structure, and a receiving cavity is provided inside the fixing member; A support member, one end of which is connected to the first lifting structure, and the other end of which passes through the fixing member and is located in the receiving cavity; An elastic element is installed between the support and the fixing element, and the elastic element is adapted to provide an elastic force to the fixing element in a direction away from the rope; The sensing metal sheet is fixed to the side of the fixing member near the rope breakage detection sensor.

[0009] In one optional embodiment, the support member is a T-shaped pin, and the support member includes a first support portion and a second support portion; One end of the first support is mounted on the first lifting structure, and the other end of the first support passes through the fixing member and is located in the receiving cavity; The second support portion is located within the receiving cavity and is connected to the first support portion; One end of the elastic element abuts against the side of the second support near the first lifting structure, and the other end abuts against the inner wall of the receiving cavity near the first lifting structure.

[0010] Beneficial effects: When the rope is in its normal state, the rope tensions the sliding connection structure, generating a pulling force on the fixing member towards the second lifting structure. The fixing member overcomes the elastic force applied by the spring, driving it to slide along the support member towards the second lifting structure. As the fixing member moves, it cooperates with the second support to compress the spring until the sensing metal plate reaches the first position. At this position, the sensing metal plate is misaligned with the rope breakage detection sensor, moving out of the effective sensing range of the rope breakage detection sensor, and the rope breakage detection sensor determines that the rope is in a normal state.

[0011] When the rope is in a faulty state of breakage, wear, or sagging, the tension of the rope on the fixing member rapidly decreases until it disappears. The elastic force stored in the compressed spring is released, pushing the fixing member to slide back to its original position along the support member away from the second lifting structure. The fixing member also moves the sensing metal plate to the second position. In the second position, the sensing metal plate enters the effective sensing range of the rope breakage detection sensor, the sensor is triggered, and a fault signal is output.

[0012] With the above configuration, the first support penetrates the fixing member, providing guidance for the sliding of the fixing member and effectively preventing it from deflecting, jamming, or shaking during movement. This ensures the linearity and repeatability of the displacement of the sensing metal sheet, thereby greatly improving the accuracy of detection.

[0013] In one alternative implementation, the elastic element is a spring.

[0014] In one optional implementation, the first lifting structure includes: First lifting device; The first linear guide rail is vertically mounted on the first lifting structure; A first slider is mounted on the first linear guide rail; The fixing member is installed on the first slider.

[0015] In one optional embodiment, the second lifting structure includes: Second lifting device; The second linear guide rail is vertically mounted on the second lifting structure; The second slider is mounted on the second linear guide rail.

[0016] In one alternative embodiment, the second lifting structure further includes a tensioning rope structure, which is mounted on the second slider, and one end of the rope is connected to the tensioning rope structure.

[0017] In one alternative embodiment, the tensioning rope structure includes: A tensioning frame, which is mounted on the second slider; A rope tensioning rod is rotatably mounted on the rope tensioning frame and is connected to the rope.

[0018] In one alternative embodiment, the tensioning structure further includes a locking component connected to the tensioning rod for securing the tensioning rod.

[0019] In one alternative implementation, the rope breakage detection sensor is a non-contact metal sensor. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the sliding connection structure of this utility model driving the sensing metal sheet to the first position; Figure 2 This is a schematic diagram of the sliding connection structure of this utility model driving the sensing metal sheet to the second position; Explanation of reference numerals in the attached figures: 1. First lifting structure; 11. First lifting device; 12. First linear guide rail; 13. First slider; 2. Second lifting structure; 21. Second lifting device; 22. Second linear guide rail; 23. Second slider; 3. Sliding connection structure; 31. Fixing component; 32. Supporting component; 321. First supporting part; 322. Second supporting part; 33. Elastic component; 4. Induction metal sheet; 5. Rope; 6. Rope breakage detection sensor; 7. Tightening rope structure; 71. Tightening rope frame; 72. Tightening rope rod; 73. Locking assembly. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] With the rapid development of urban rail transit, platform screen door systems have become a core facility for ensuring passenger safety. Relevant train platforms are equipped with screen door devices to ensure the safety of passengers waiting on the platform, and the cable tensioning mechanism allows for rapid cable tightening.

[0024] However, the safety performance of such advanced rope-type safety gate systems, and even traditional rope-type safety devices, is highly dependent on the integrity and tension of the rope itself. During long-term use, the rope may sag or even break due to fatigue, wear, accidental pulling, or environmental corrosion.

[0025] Currently, the inspection of rope condition 5 mostly relies on regular manual inspections, which is not only inefficient but also unable to achieve timely detection and early warning of faults, making it difficult to eliminate safety risks caused by rope breakage in a timely manner.

[0026] To solve the above technical problems, the following will be combined with... Figures 1 to 2 The following describes embodiments of the present invention.

[0027] According to an embodiment of the present invention, a rope breakage detection device for a platform lifting safety door device is provided, comprising: a first lifting structure 1, a second lifting structure 2, a sliding connection structure 3, and a rope 5.

[0028] The first lifting structure 1 and the second lifting structure 2 are positioned opposite each other at the edge of the platform, such as Figure 1 and Figure 2 As shown, the first lifting structure 1 is located on the left side, and the second lifting structure 2 is located on the right side. A sliding connection structure 3 is installed on the side of the first lifting structure 1 closest to the second lifting structure 2, and a sensing metal plate 4 is fixedly installed on the side wall of the sliding connection structure 3. One end of a rope 5 is installed on the sliding connection structure 3, and the other end of the rope 5 is connected to the second lifting structure 2. A rope breakage detection sensor 6 is installed on the first lifting structure 1 corresponding to the sliding connection structure 3.

[0029] The control system controls the operation of the first lifting structure 1 and the second lifting structure 2, driving the sliding connection structure 3 and the rope 5 to rise and fall to the preset protective position. During the protective process, the tension of the rope 5 acts on the sliding connection structure 3, which is driven to move the sensing metal plate 4 on it to the first position. The sensing metal plate 4 is misaligned with the rope breakage detection sensor 6, moving out of the effective sensing range of the rope breakage detection sensor 6. The rope breakage detection sensor 6 then determines that the rope 5 is in a normal state.

[0030] When rope 5 breaks, wears, or loosens and loses tension, the tension on sliding connection structure 3 decreases or even disappears. Sliding connection structure 3 resets and drives sensing metal plate 4 to move to the second position, entering the effective sensing range of rope breakage detection sensor 6, thus determining that rope 5 is in a fault state.

[0031] Through the above settings, automatic monitoring of the status of rope 5 is achieved. Once a rope breaks or becomes severely slack, an alarm can be issued immediately, greatly improving the detection rate of the platform safety system. Furthermore, through the cooperation of the sensing metal plate 4 and the rope breakage detection sensor 6, there is no need for telescopic spring cables or cable chains, which can greatly reduce the required wiring harness.

[0032] In one embodiment, such as Figure 1 and Figure 2As shown, the sliding connection structure 3 includes: a fixing member 31, a support member 32, and an elastic member 33. The fixing member 31 is a block-shaped or cylindrical component with an internal receiving cavity. One end of the rope 5 is fixedly installed on one end of the fixing member 31 by means of crimping, locking nuts, or rope buckles.

[0033] Support member 32 provides guidance and support. Support member 32 is specifically a T-shaped pin. It consists of a first support portion 321 and a second support portion 322. One end of the first support portion 321 is fixedly mounted on the first lifting structure 1, and the other end passes through the receiving cavity of the fixing member 31. The second support portion 322 is located inside the receiving cavity. The outer diameter of the second support portion 322 is equal to the inner diameter of the receiving cavity, allowing the second support portion 322 to slide relative to the inner wall of the receiving cavity. The outer diameter of the second support portion 322 is larger than the inner diameter of the through hole of the first support portion 321 through the fixing member 31, to prevent the support member 32 from detaching from the receiving cavity. Elastic member 33 is specifically a spring, sleeved on the first support portion 321, with its two ends abutting against the side of the second support portion 322 and the corresponding inner wall of the receiving cavity, respectively.

[0034] The sensing metal plate 4 and the fixing member 31 are placed close to the outer wall of the rope breakage detection sensor 6 to ensure that it can move synchronously and accurately with the fixing member 31.

[0035] When rope 5 is in its normal state, it tightens the sliding connection structure 3, generating a pulling force on the fixing member 31 towards the second lifting structure 2. The fixing member 31 overcomes the elastic force applied by the spring, causing it to slide along the support member 32 towards the second lifting structure 2. As the fixing member 31 moves, it cooperates with the second support part 322 to compress the spring until the sensing metal plate 4 reaches the first position. At this position, the sensing metal plate 4 is misaligned with the rope breakage detection sensor 6, moving out of the effective sensing range of the rope breakage detection sensor 6, and the rope breakage detection sensor 6 determines that rope 5 is in its normal state.

[0036] When rope 5 is in a faulty state of breakage, wear, or sagging, the tension of rope 5 on fixing member 31 rapidly decreases until it disappears. The elastic force stored in the compressed spring is released, pushing fixing member 31 to slide back along support member 32 away from the second lifting structure 2. Fixing member 31 moves the sensing metal plate 4 to the second position. In the second position, sensing metal plate 4 enters the effective sensing range of rope breakage detection sensor 6, triggering the sensor and outputting a fault signal.

[0037] With the above configuration, the first support 321 penetrates the fixing member 31, providing guidance for the sliding of the fixing member 31 and effectively preventing it from deflecting, jamming, or shaking during movement. This ensures the linearity and repeatability of the displacement of the sensing metal sheet 4, thereby greatly improving the accuracy of detection.

[0038] In one embodiment, such as Figure 1 and Figure 2 As shown, the first lifting structure 1 includes: a first lifting device 11, a first linear guide rail 12, and a first slider 13. The first lifting device 11 can be a motor-driven screw jack or a cylinder. A first linear guide rail 12 is vertically fixed on the lifting device, and a first slider 13 is nested on the first linear guide rail 12 and can slide up and down along the first linear guide rail 12. The sliding connection structure 3 and the rope breakage detection sensor 6 are both installed on this first slider 13. When the first lifting device 11 is running, the sliding connection structure 3 and the rope breakage detection sensor 6 rise and fall together.

[0039] The second lifting structure 2 is symmetrically arranged with the first lifting structure 1, and includes a second lifting device 21, a second linear guide rail 22, and a second slider 23. The second lifting device 21 can be a motor-driven screw jack or a cylinder. A second linear guide rail 22 is vertically fixed on the lifting device, and a second slider 23 is nested on the second linear guide rail 22 and can slide up and down along the second linear guide rail 22.

[0040] A tensioning structure 7 is installed on the second slider 23, including a tensioning frame 71, a tensioning rod 72, and a locking assembly 73. The tensioning frame 71 is fixed to the second slider 23, and a tensioning rod 72 is rotatably mounted on the tensioning frame 71 via a bearing or bushing. The end of the rope 5 is fixedly wound around the tensioning rod 72. The rope 5 can be tightened or loosened by rotating the tensioning rod 72. The locking assembly 73 can be a ratchet and pawl structure, with a ratchet installed at one end of the tensioning rod 72. A mating pawl is mounted on the tensioning frame 71 via a pin. When the tensioning rod 72 is rotated in the direction of tensioning, the pawl slides on the ratchet teeth. After tensioning is complete, the pawl engages in the ratchet, preventing it from reversing, thereby maintaining the tension of the rope 5.

[0041] The rope breakage detection sensor 6 is a non-contact metal sensor, such as an inductive proximity switch. It determines its operation by detecting the energy change caused when the sensing metal piece 4 enters its electromagnetic field, without requiring physical contact.

[0042] The specific working process of the platform lifting safety gate device is as follows: The operator fixes one end of rope 5 to the fixing part 31 of the first lifting structure 1, and fixes the other end of rope 5 to the tensioning rod 72 of the tensioning structure 7 of the second lifting structure 2. Using a tool, the tensioning rod 72 is rotated to wind rope 5 and tighten it. During this process, the ratchet and pawl mechanism prevents it from rotating back. The lifting device is started, so that the first lifting structure 1 and the second lifting structure 2 are simultaneously raised and lowered to the preset position for protection.

[0043] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A rope breakage detection device for a platform lifting safety door system, characterized in that, include: A first lifting structure (1) and a second lifting structure (2) are arranged opposite to each other. A sliding connection structure (3) is installed on the side of the first lifting structure (1) near the second lifting structure (2); an induction metal sheet (4) is fixedly installed on the side wall of the sliding connection structure (3). A rope (5), one end of which is mounted on the sliding connection structure (3) and the other end is connected to the second lifting structure (2); the sliding connection structure (3) can be tightened by the rope (5) to drive the sensing metal plate (4) to move to a first position; the rope (5) breaks to reset the sliding connection structure (3) and push the sensing metal plate (4) to move to a second position; A broken rope detection sensor (6) is installed on the first lifting structure (1) corresponding to the sliding connection structure (3); the broken rope detection sensor (6) is used to detect the position of the sensing metal sheet (4).

2. The rope breakage detection device for a platform lifting safety door device according to claim 1, characterized in that, The sliding connection structure (3) includes: A fixing member (31) is installed at one end of the rope (5) away from the second lifting structure (2), and a receiving cavity is provided inside the fixing member (31); Support member (32), one end of which is connected to the first lifting structure (1), and the other end passes through the fixing member (31) and is located in the receiving cavity; An elastic element (33) is installed between the support (32) and the fixing element (31), and the elastic element (33) is adapted to provide the fixing element (31) with an elastic force in a direction away from the rope (5); The sensing metal sheet (4) is fixed to the side of the fixing member (31) near the broken rope detection sensor (6).

3. The rope breakage detection device for a platform lifting safety door device according to claim 2, characterized in that, The support member (32) is a T-shaped pin, and the support member (32) includes a first support part (321) and a second support part (322). One end of the first support (321) is mounted on the first lifting structure (1), and the other end of the first support (321) passes through the fixing member (31) and is located in the receiving cavity; The second support portion (322) is located within the receiving cavity and is connected to the first support portion (321); One end of the elastic element (33) abuts against the side of the second support part (322) near the first lifting structure (1), and the other end abuts against the inner wall of the receiving cavity near the first lifting structure (1).

4. The rope breakage detection device for a platform lifting safety door device according to claim 2, characterized in that, The elastic element (33) is a spring.

5. The rope breakage detection device for a platform lifting safety door device according to claim 2, characterized in that, The first lifting structure (1) includes: First lifting device (11); The first linear guide rail (12) is vertically mounted on the first lifting structure (1); The first slider (13) is mounted on the first linear guide (12); The fixing member (31) is installed on the first slider (13).

6. The rope breakage detection device for a platform lifting safety door device according to claim 2, characterized in that, The second lifting structure (2) includes: Second lifting device (21); The second linear guide (22) is vertically mounted on the second lifting structure (2); The second slider (23) is mounted on the second linear guide (22).

7. The rope breakage detection device for a platform lifting safety door device according to claim 6, characterized in that, The second lifting structure (2) further includes a tensioning structure (7), which is installed on the second slider (23), and one end of the rope (5) is connected to the tensioning structure (7).

8. The rope breakage detection device for a platform lifting safety door device according to claim 7, characterized in that, The tensioning structure (7) includes: A tensioning frame (71) is mounted on the second slider (23); A rope tensioning rod (72) is rotatably mounted on the rope tensioning frame (71) and is connected to the rope (5).

9. The rope breakage detection device for a platform lifting safety door device according to claim 8, characterized in that, The tensioning structure (7) further includes a locking component (73), which is connected to the tensioning rod (72) for securing the tensioning rod (72).

10. The rope breakage detection device for a platform lifting safety door device according to claim 1, characterized in that, The rope breakage detection sensor (6) is a non-contact metal sensor.

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