Rope-type platform-lifting safety door
Patent Information
- Application Number
- CN202521448589.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-11
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-07-11
AI Technical Summary
[0004]本申请提供一种能够简化绳索拆装步骤、提升维护便捷性的新型绳索式站台升降安全门结构，用以解决现有绳索式站台升降安全门在对阻拦绳索进行拆装维护时操作繁琐、效率低的问题
通过拉杆、连接杆与连接转筒的联动设计手段，配合限位组件与调节组件的协同作用，实现绳索的快速拆装及维护便捷性效果。具体过程为：工作人员拉动拉杆使其在滑块内滑动，拉杆通过连接杆带动连接转筒同步移动，连接转筒推动滑板在壳体内滑动；当滑板滑动至预定位置时，夹持块脱离限位组件（锁止调节锥）的约束，调节组件中的调节弹簧释放弹力，推动滑台在滑道内滑动，从而带动夹持块张开，此时可轻松将待更换的阻拦绳索取出或装入；随后转动拉杆，通过连接杆带动连接转筒旋转，使连接转筒上的凸台抵接壳体上的限位横杆，形成锁止状态，确保拆装过程中连接转筒与夹持块不会意外滑移；完成绳索更换后，反向转动拉杆使凸台脱离限位横杆，连接转筒解除锁止，推动拉杆复位滑板，夹持块在锁止调节锥的约束下重新闭合，调节弹簧被压缩产生夹持力，最终将绳索牢固固定。此过程通过多部件联动简化了绳索拆装步骤，提升了安全门的维护效率与便捷性。
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Figure CN224752473U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of safety doors, and specifically relates to a rope-type platform lifting safety door. Background Technology
[0002] Platform screen doors, as safety isolation devices between rail transit platforms and tracks, play a crucial role in ensuring passenger safety while waiting for trains and preventing accidental falls. Traditional rope-operated platform screen doors typically use mechanical structures such as bolts and clamps to secure the barrier ropes, maintaining the door's lifting and isolating function. However, because the barrier ropes are constantly exposed to the external environment, they are susceptible to changes in temperature and humidity, mechanical wear, and other factors. Therefore, regular checks of their tension and wear are necessary, and timely replacement is required to ensure the reliability of the platform screen doors.
[0003] In existing technologies, the disassembly and maintenance of ropes have the following drawbacks: Firstly, bolt tightening or clamping methods require repeated disassembly using tools, which is cumbersome and time-consuming, affecting maintenance efficiency and the stability of the safety gate. Therefore, there is an urgent need for a new type of rope-type platform lifting safety gate structure that can simplify the rope disassembly and assembly process and improve maintenance convenience. Utility Model Content
[0004] This application provides a novel rope-type platform lifting safety gate structure that simplifies the rope disassembly and assembly process and improves maintenance convenience, in order to solve the problems of cumbersome operation and low efficiency in the disassembly and maintenance of the barrier ropes in existing rope-type platform lifting safety gates.
[0005] To achieve the above objectives, this application provides a rope-type platform lifting safety gate, including a fixed base column, with sliding grooves extending through both sides of the fixed base column. A lifting control mechanism is slidably installed within the fixed base column through the sliding grooves. Multiple rope fasteners are installed on both sides of the lifting control mechanism, and the rope fasteners are used for assembling and disassembling the ropes. The rope fixing device includes a housing, which is set inside the lifting control mechanism. A slide plate is slidably set inside the housing, and a connecting drum is rotatably set on the slide plate. Two clamping blocks are movably installed at the end of the connecting drum away from the slide plate through an adjustment component. A connecting rod is fixedly set at the end of the connecting drum near the clamping blocks, and a pull rod is fixedly connected to the other end of the connecting rod. The pull rod is movably set inside the slider, and the slider is slidably set inside the lifting control mechanism and slides along the slide groove. The rope fixing device also includes a limiting assembly, which includes a limiting crossbar, a boss, and a locking adjusting cone. The limiting crossbar is fixedly mounted on the top of the housing, the boss is fixedly mounted on the connecting drum, and the locking adjusting cone is fixedly mounted on the end of the housing near the pull rod. The diameter of the locking adjusting cone gradually increases towards the pull rod.
[0006] In one embodiment, the adjustment assembly includes two slides symmetrically located at the ends of the connecting drum. A slide table is slidably disposed in each slide, and the slide table is also fixedly connected to a clamping block. An adjustment spring is connected between the slide and the slide table.
[0007] In one embodiment, a compression spring is fixedly connected to one end of the slide plate near the clamping block, and the other end of the compression spring is fixed to the side of the housing near the pull rod.
[0008] In one embodiment, a plurality of jaws are fixedly provided on the sides of the two clamping blocks that are close to each other.
[0009] In one embodiment, the lifting control mechanism includes a slide chamber, which is slidably mounted on a fixed base column via a limiting slide table and a slide groove, and the limiting slide table is fixedly mounted on the slide chamber; an adjustment chamber is fixedly mounted on the central axis of the slide chamber, and a telescopic limiting frame is provided inside the adjustment chamber; the housing is slidably mounted on the adjustment chamber and is connected to the telescopic limiting frame via a base.
[0010] In one embodiment, an electric telescopic rod is also provided inside the slide chamber. The top of the electric telescopic rod is fixedly installed inside the slide chamber, and the bottom is fixedly installed at the bottom of the fixed base column.
[0011] In one embodiment, a transmission component is also provided on the side wall of the lifting and regulating mechanism. The transmission component includes a pulley, a lifting rod, and a pull rope. The pulley is rotatably mounted on the wall of the slide chamber. Slide rails are also provided through the walls on both sides of the regulating chamber. The lifting rod is slidably mounted in the slide rails and connected to the bottom end of the telescopic limit frame. The pull rope is sleeved on the surface of the pulley, with one end connected to the lifting rod and the other end fixedly mounted on the bottom of the fixed base column.
[0012] Compared with the prior art, the beneficial effects of this application are: By using a linkage design of the pull rod, connecting rod, and connecting drum, along with the synergistic effect of the limiting and adjusting components, the rope can be quickly disassembled and easily maintained. The specific process is as follows: The operator pulls the lever, causing it to slide within the slider. The lever, via the connecting rod, drives the connecting drum to move synchronously, pushing the slide plate within the housing. When the slide plate reaches the predetermined position, the clamping block disengages from the limiting component (locking adjustment cone), releasing the adjusting spring in the adjusting component and pushing the slide table within the track, thus opening the clamping block. At this point, the barrier rope to be replaced can be easily removed or inserted. Then, the lever is rotated, causing the connecting drum to rotate via the connecting rod, so that the protrusion on the connecting drum abuts against the limiting crossbar on the housing, forming a locking state. This ensures that the connecting drum and clamping block will not accidentally slip during disassembly and assembly. After the rope replacement is completed, the lever is rotated in the opposite direction to disengage the protrusion from the limiting crossbar, releasing the locking of the connecting drum. The lever is then pushed back to the slide plate, and the clamping block re-closes under the constraint of the locking adjustment cone. The adjusting spring is compressed, generating clamping force, ultimately securing the rope firmly. This process simplifies the rope disassembly and assembly steps through multi-component linkage, improving the maintenance efficiency and convenience of the safety gate. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 A schematic diagram of the overall cable-operated platform lift safety door provided in this application; Figure 2 A partial sectional side view of the rope-type platform lift safety door provided in this application; Figure 3 A schematic diagram of the connection and control structure of the rope-type platform lifting safety door provided in this application; Figure 4 A schematic diagram of the cable-type platform lifting safety door telescopic fixing device provided in this application; Figure 5 A schematic diagram of the cable-type platform lifting safety door telescopic fixing device provided in this application; Figure 6 A schematic diagram of the connection of the rope-type platform lifting safety door adjustment assembly provided in this application; Figure 7 An enlarged schematic diagram of point A of the rope-type platform lift safety door provided in this application; Figure 8 This is an enlarged schematic diagram of section B of the rope-type platform lift safety door provided in this application.
[0015] Explanation of reference numerals in the attached drawings: 1. Fixed base column; 2. Lifting and adjusting mechanism; 21. Slide chamber; 22. Adjusting chamber; 23. Limiting slide; 24. Telescopic limiting frame; 25. Slide rail; 3. Slide groove; 4. Rope fixing device; 41. Housing; 42. Base; 43. Slide plate; 44. Compression spring; 45. Connecting drum; 46. Limiting crossbar; 47. Locking adjusting cone; 48. Connecting rod; 49. Pull rod; 410. Slider; 411. Clamping block; 412. Boss; 413. Slide rail; 414. Adjusting spring; 5. Transmission assembly; 51. Pulley; 52. Lifting rod; 53. Pull rope; 6. Electric telescopic rod. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.
[0017] See Figures 1 to 8 As shown, the rope-type platform lifting safety door provided in this application includes a fixed base column 1, with sliding grooves 3 extending through both sides of the fixed base column 1. A lifting control mechanism 2 is slidably installed in the fixed base column 1 through the sliding grooves 3. Multiple rope fasteners 4 are installed on both sides of the lifting control mechanism 2, and the rope fasteners 4 are used for assembling and disassembling the ropes.
[0018] The rope fixing device 4 includes a housing 41, which is disposed within the lifting control mechanism 2. A slide plate 43 is slidably disposed within the housing 41. A connecting drum 45 is rotatably disposed on the slide plate 43. Two clamping blocks 411 are movably mounted on one end of the connecting drum 45 away from the slide plate 43 via an adjustment component. A connecting rod 48 is fixedly disposed on one end of the connecting drum 45 near the clamping blocks 411. A pull rod 49 is fixedly connected to the other end of the connecting rod 48. The pull rod 49 is movably disposed within a slider 410. The slider 410 is slidably disposed within the lifting control mechanism 2 and slides along the slide groove 3.
[0019] The rope fixing device 4 also includes a limiting component, which includes a limiting crossbar 46, a boss 412, and a locking adjusting cone 47. The limiting crossbar 46 is fixedly installed on the top of the housing 41, the boss 412 is fixedly installed on the connecting rotating cylinder 45, and the locking adjusting cone 47 is fixedly installed on the end of the housing 41 near the pull rod 49. The diameter of the locking adjusting cone 47 gradually increases towards the pull rod 49.
[0020] The rope fixing device 4 is equipped with ropes, and the ropes installed on multiple rope fixing devices 4 form a rope-type safety gate from top to bottom. During use, the lifting and adjusting mechanism 2 controls the movement of multiple rope fixing devices 4 along the slide groove 3, thereby opening or closing the rope-type safety gate. Because the barrier ropes are affected by the external environment over a long period of time, it is necessary to regularly check the wear and tension of the barrier ropes, and replace them in time when they exceed their service life to ensure the stable operation of the safety gate.
[0021] In this embodiment, during the installation and disassembly of the barrier rope, the worker first pulls the lever 49, causing it to move away from the housing 41 within the slider 410. During this movement, the lever 49 drives the connecting drum 45 via the connecting rod 48. The connecting drum 45 slides stably within the housing 41 via the sliding plate 43. When the connecting drum 45 reaches a predetermined position (i.e., the boss 412 moves to the side of the limiting crossbar 46 near the lever 49), the lever 49 is rotated. The lever 49 drives the connecting drum 45 to rotate via the connecting rod 48. The connecting drum 45 then drives the boss 412 to rotate. When the boss 412 rotates to the top, it abuts against the side of the limiting crossbar 46 near the lever 49, thereby limiting the connecting drum 45. In other words, at this time, the boss 412 cooperates with the limiting crossbar 46 to form a limit, preventing the connecting drum 45 from slipping and ensuring stability during the installation and disassembly process. Furthermore, during the movement of the connecting drum 45, the two clamping blocks 411 on the connecting drum 45 gradually move towards the pull rod 49 within the locking adjusting cone 47. As the diameter of the locking adjusting cone 47 gradually increases during this process, the constraint force of the locking adjusting cone 47 on the two clamping blocks 411 gradually decreases. When the diameter of the locking adjusting cone 47 is larger, the two clamping blocks 411 move further apart under the action of the adjusting component; when the diameter of the locking adjusting cone 47 is smaller, the two clamping blocks 411 move closer together under the action of the adjusting component. When the locking adjusting cone 47 exerts no constraint force on the two clamping blocks 411, the two clamping blocks 411 break free from the constraint of the locking adjusting cone 47 and thus open under the action of the adjusting component, allowing the barrier rope to be easily inserted or removed between the two clamping blocks 411. Optionally, the end of the clamping block 411 that contacts the locking adjusting cone 47 is chamfered to improve the smoothness of the movement of the clamping block 411 along the inner conical surface of the locking adjusting cone 47.
[0022] After locking the connecting drum 45, the worker removes the replacement barrier rope from the two clamping blocks 411. The new barrier rope is then passed through the hollow cavity of the pull rod 49 and inserted between the two clamping blocks 411. Once the barrier rope is in place, the pull rod 49 is rotated in the opposite direction, causing the connecting drum 45 to rotate in the opposite direction via the connecting rod 48. This causes the boss 412 to rotate in the opposite direction, disengaging it from the limiting crossbar 46 and freeing the connecting drum 45 from the constraint of the limiting assembly. Simultaneously, pushing the pull rod 49 resets the connecting drum 45 and the sliding plate 43. During this reset process, the clamping blocks 411 move backward, causing them to gradually close under the action of the locking adjusting cone 47, ultimately securing the barrier rope firmly and ensuring it is in optimal working condition. The entire process is simple and efficient, improving the convenience of maintenance and reliability of the safety gate, and increasing work efficiency.
[0023] Optionally, the adjustment assembly includes two slides 413, which are symmetrically opened at the end of the connecting drum 45. A slide table is slidably arranged in each slide 413, and the slide table is also fixedly connected to the clamping block 411. An adjustment spring 414 is connected between the slide 413 and the slide table.
[0024] In this embodiment, when the connecting drum 45 slides to the predetermined position, the clamping block 411 disengages from the constraint of the locking adjusting cone 47, allowing the slide to move within the slide rail 413 under the action of the adjusting spring 414. This, in turn, causes the clamping block 411 to open, releasing the fixed clamping of the blocking rope. At this time, the operator can easily perform the rope replacement operation.
[0025] After the barrier rope replacement is completed, the connecting drum 45 slides back to its original position, thereby re-constraining the clamping block 411 under the locking adjusting cone 47. Under the constraint of the locking adjusting cone 47, the clamping block 411 gradually closes to re-secure the barrier rope, ensuring its stability and safety. Furthermore, during the closing process of the clamping block 411, the elastic force of the adjusting spring 414 gradually increases, ensuring that the clamping block 411 can quickly open when the clamping rope is replaced in the next operation, improving operational efficiency. At the same time, the design of the adjusting spring 414 also optimizes the clamping force of the clamping block 411, preventing loosening due to external factors, ensuring that the barrier rope remains stable under any circumstances, and further improving the overall reliability and service life of the safety gate system.
[0026] Optionally, one end of a compression spring 44 is fixedly connected to the side of the slide plate 43 near the clamping block 411, and the other end of the compression spring 44 is fixed to the side of the housing 41 near the rotating rod 49.
[0027] In this embodiment, the compression spring 44 first provides stable elastic potential energy during the assembly and disassembly of the barrier rope. This elastic potential energy not only contributes to the stability of the limiting position of the boss 412 and the limiting crossbar 46, but also provides auxiliary force when the slide plate 43 resets, ensuring that the slide plate 43 can quickly reset. This allows the two clamping blocks 411 to close quickly and firmly under the action of the locking adjusting cone 47, further enhancing the fixing effect of the barrier rope. At the same time, the compression spring 44 can compensate for the slight displacement of the barrier rope due to tension, maintaining the overall balance of the system and effectively preventing accidental loosening. It can also dynamically adjust the tension of the barrier rope to prevent overload or slack, ensuring that it maintains a good working condition under various working conditions, thereby improving the comprehensive performance and long-term stability of the safety gate system.
[0028] Optionally, multiple jaws are fixedly provided on the sides of the two clamping blocks 411 that are close to each other. The jaws can provide additional biting force when the clamping blocks 411 are closed, thereby enhancing the fixing effect of the blocking rope.
[0029] Optionally, the lifting and adjusting mechanism 2 includes a slide chamber 21, which is slidably mounted on the fixed base column 1 via a limiting slide table 23 and a slide groove 3. The limiting slide table 23 is fixedly mounted on the slide chamber 21. An adjusting chamber 22 is fixedly mounted on the central axis of the slide chamber 21, and a telescopic limiting frame 24 is provided inside the adjusting chamber 22. The housing 41 is slidably mounted on the adjusting chamber 22 and is connected to the telescopic limiting frame 24 via a base 42.
[0030] In this embodiment, when the safety door needs to be opened, the control slide 21 gradually moves upward relative to the fixed base column 1, while the limiting slide 23 moves upward along the slide groove 3 to ensure that the slide 21 moves upward smoothly, thereby driving the entire device to move upward. At the same time, the control telescopic limiting frame 24 retracts within the adjustment chamber 24. When the telescopic limiting frame 24 retracts, it drives the housing 41 to slide upward along the adjustment chamber 22 through the base 42. The rise of the housing 41 drives the barrier rope to rise synchronously until the safety door is fully opened.
[0031] Optionally, an electric telescopic rod 6 is also provided inside the slide chamber 21. The top of the electric telescopic rod 6 is fixedly installed inside the slide chamber 21, and the bottom is fixedly installed at the bottom of the fixed base column 1. The electric telescopic rod 6 drives the slide chamber 21 to gradually move upward relative to the fixed base column 1.
[0032] Optionally, a transmission component 5 is also provided on the side wall of the lifting and regulating mechanism 2. The transmission component 5 includes a pulley 51, a lifting rod 52, and a pull rope 53. The pulley 51 is rotatably mounted on the wall of the slide chamber 21. A slide rail 25 is also provided through the walls on both sides of the regulating chamber 22. The lifting rod 52 is slidably mounted in the slide rail 25 and connected to the bottom end of the telescopic limit frame 24. The pull rope 53 is sleeved on the surface of the pulley 51, with one end connected to the lifting rod 52 and the other end fixedly mounted on the bottom of the fixed base column 1.
[0033] In this embodiment, as the slide 21 moves upward, the pull rope 53 tightens accordingly, passing around the pulley 51 and driving the lifting rod 52 to slide upward within the slide rail 25. During this upward sliding, the lifting rod 52 pushes the telescopic limit frame 24 to retract, thereby causing the housing 41 to slide upward along the adjusting chamber 22. The upward movement of the housing 41 causes the barrier rope to rise synchronously until the safety door is fully opened. The lifting rod 52 can abut against the bottom end of the telescopic limit frame 24, or the bottom end of the telescopic limit frame 24 can be slidably connected to the lifting rod 52, or the bottom end of the telescopic limit frame 24 can be rotatably connected to the lifting rod 52.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A rope-type platform lifting safety door, characterized in that: Includes a fixed base column (1), with sliding grooves (3) extending through both sides of the fixed base column (1). A lifting control mechanism (2) is slidably installed in the fixed base column (1) through the sliding grooves (3). Multiple rope fasteners (4) are installed on both sides of the lifting control mechanism (2). The rope fasteners (4) are used for assembling and disassembling ropes. The rope fixing device (4) includes a housing (41), which is disposed within the lifting control mechanism (2). A sliding plate (43) is slidably disposed within the housing (41), and a connecting drum (45) is rotatably disposed on the sliding plate (43). Two clamping blocks (411) are movably mounted on one end of the connecting drum (45) away from the sliding plate (43) via an adjustment component. A connecting rod (48) is fixedly disposed at one end of the connecting drum (45) near the clamping blocks (411), and a pull rod (49) is fixedly connected to the other end of the connecting rod (48). The pull rod (49) is movably disposed within a slider (410), and the slider (410) is slidably disposed within the lifting control mechanism (2) and slides along the groove (3). The rope fastener (4) also includes a limiting component, which includes a limiting crossbar (46), a boss (412), and a locking adjusting cone (47). The limiting crossbar (46) is fixedly disposed on the top of the housing (41), the boss (412) is fixedly disposed on the connecting drum (45), and the locking adjusting cone (47) is fixedly disposed on one end of the housing (41) near the pull rod (49). The diameter of the locking adjusting cone (47) gradually increases in the direction toward the pull rod (49).
2. The rope-type platform lifting safety door according to claim 1, characterized in that: The adjustment assembly includes two slides (413), which are symmetrically opened at the ends of the connecting drum (45). A slide table is slidably arranged in each slide (413), and the slide table is also fixedly connected to the clamping block (411). An adjustment spring (414) is connected between the slide (413) and the slide table.
3. The rope-type platform lifting safety door according to claim 1, characterized in that: One end of a compression spring (44) is fixedly connected to the side of the slide plate (43) near the clamping block (411), and the other end of the compression spring (44) is fixed to the side of the housing (41) near the pull rod (49).
4. The rope-type platform lifting safety door according to claim 1, characterized in that: Multiple jaws are fixedly provided on the sides of the two clamping blocks (411) that are close to each other.
5. The rope-type platform lifting safety door according to any one of claims 1-4, characterized in that: The lifting and adjusting mechanism (2) includes a slide (21), which is slidably mounted on the fixed base column (1) through a limiting slide (23) in cooperation with the slide groove (3). The limiting slide (23) is fixedly mounted on the slide (21). An adjusting chamber (22) is fixedly mounted on the central axis of the slide (21), and a telescopic limiting frame (24) is provided in the adjusting chamber (22). The housing (41) is slidably mounted on the adjusting chamber (22) and is connected to the telescopic limiting frame (24) through a base (42).
6. The rope-type platform lifting safety door according to claim 5, characterized in that: An electric telescopic rod (6) is also provided inside the slide (21). The top of the electric telescopic rod (6) is fixedly installed inside the slide (21), and the bottom is fixedly installed at the bottom of the fixed base column (1).
7. The rope-type platform lifting safety door according to claim 5, characterized in that: The lifting and adjusting mechanism (2) is also provided with a transmission component (5) on its side wall. The transmission component (5) includes a pulley (51), a lifting rod (52), and a pull rope (53). The pulley (51) is rotatably mounted on the wall of the slide chamber (21). A slide rail (25) is also provided through the walls on both sides of the adjusting chamber (22). The lifting rod (52) is slidably mounted in the slide rail (25) and connected to the bottom end of the telescopic limiting frame (24). The pull rope (53) is sleeved on the surface of the pulley (51), and one end is connected to the lifting rod (52), while the other end is fixedly mounted on the bottom of the fixed base column (1).