A mechanical lock based platform door door operator system

Abstract

The application discloses a kind of platform door door machine systems based on mechanical lock, including girder, drive assembly and mechanical lock component, drive assembly is located on girder, mechanical lock component includes left door hanging plate component and right door hanging plate component, left door hanging plate component and right door hanging plate component are movably connected on drive assembly, left door hanging plate component is used to connect left platform door, right door hanging plate component is used to connect right platform door, drive assembly controls left door hanging plate component and right door hanging plate component move towards or away from each other, to complete the unlocking and locking of mechanical lock component work.The application designs mechanical lock component and drive assembly, realizes the synchronism and integrated control of action, completely gives up traditional electromagnetic lock and its supporting circuit system;From the source, reduce the risk of abnormal operation caused by circuit failure, electromagnetic interference or lock out of synchronization, system reliability is essentially improved, due to the reduction of components and structural simplification, significantly reduce production cost and long-term maintenance cost.

Description

Technical Field

[0001] This invention belongs to the field of rail transit platform screen door technology, specifically relating to a platform screen door operator system based on mechanical locks. Background Technology

[0002] Currently, the platform screen door operator system serves as the control and drive device for platform screen door equipment, as shown in the attached... Figure 1 As shown, the platform screen door is typically driven by a motor and belt. It usually consists of a gantry beam, a motor drive unit 54, a driven pulley 55, a belt 56, a pulley assembly 57, an electromagnetic lock 58, and a belt connecting device. The electromagnetic lock serves as the locking mechanism for the left and right sliding doors, preventing unauthorized personnel from opening the platform screen door in public areas and causing safety accidents. The electromagnetic lock consists of an electromagnet, a coil, and a locking hook. When the door is closed, the left and right sliding doors are locked by the locking mechanism. When the door is opened, the electromagnetic lock first receives an unlocking signal from the control unit, and then releases the unlocking mechanism through the engagement of the electromagnetic coil, allowing the left and right sliding doors to open.

[0003] Electromagnetic locks, as independent components, increase the structural complexity and assembly difficulty of the system; their electrical components are susceptible to environmental influences and may malfunction, leading to unlocking failure or response delay; at the same time, electromagnetic locks require additional control circuits and power supplies, which not only increases manufacturing costs but also increases the difficulty of system maintenance and potential failure points; in addition, the lifespan and reliability of electromagnetic locks are limited by the performance of electrical components, and aging and wear may occur during long-term use, affecting the overall stability and safety of the platform screen door operation. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned technical problems existing in the prior art and to provide a platform door operator system based on mechanical locks. By simplifying the structure of the platform door operator and eliminating the electromagnetic lock device, the door can be automatically unlocked by the motor driving the platform door through the command of the control unit. Since the electromagnetic unlocking mechanism is simplified, the failure points of the platform door system are reduced, and the equipment cost is also reduced.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A platform door operator system based on mechanical locks includes a beam, a drive assembly, and a mechanical lock assembly. The drive assembly is mounted on the beam. The mechanical lock assembly includes a left door mounting plate assembly and a right door mounting plate assembly, both movably connected to the drive assembly. The left door mounting plate assembly connects to the left platform door, and the right door mounting plate assembly connects to the right platform door. The drive assembly controls the left and right door mounting plate assemblies to move towards or away from each other, thereby unlocking and locking the mechanical lock assembly. This invention achieves synchronous and integrated control of the actions by designing the mechanical lock assembly and drive assembly, completely eliminating the need for traditional electromagnetic locks and their associated circuit systems. This not only significantly reduces the number of electrical contacts and independent lock parts, reducing the risk of operational anomalies caused by circuit failures, electromagnetic interference, or lock asynchrony, but also simplifies the overall assembly and debugging process. The system reliability is fundamentally improved, and the reduction in components and simplification of the structure significantly reduces production and long-term maintenance costs, making it particularly suitable for high-frequency, high-reliability rail transit platform environments.

[0006] Furthermore, the drive assembly includes a drive wheel assembly, a driven wheel assembly, and an annular transmission belt. The drive wheel assembly and the driven wheel assembly are respectively fixedly connected to both ends of the machine beam. An annular transmission belt is rotatably connected between the drive wheel assembly and the driven wheel assembly, and the drive wheel assembly drives the annular transmission belt to rotate.

[0007] Furthermore, the drive wheel assembly includes a motor bracket, an electric motor, and a drive wheel. The machine beam is provided with a mounting groove. The motor bracket is fixedly connected to the mounting groove by a screw. The electric motor is fixedly connected to the motor bracket. The output end of the electric motor is rotatably connected to the drive wheel.

[0008] Furthermore, the driven wheel assembly includes a driven wheel mounting bracket and a driven wheel. The machine beam is provided with a second mounting groove. The driven wheel mounting bracket is fixedly connected to the second mounting groove by a screw, and the driven wheel is rotatably connected to the driven wheel mounting bracket.

[0009] Furthermore, the left door panel assembly includes a first hanging wheel component, a left lock hook, a left clamping plate, and a left drive plate. Guide rails are fixedly connected to both ends of the bottom of the machine beam. The first hanging wheel component is movably connected to the guide rails. A shaft plate is fixedly connected to the end of the first hanging wheel component near the right door panel assembly. An adjusting shaft is fixedly connected to the top of the shaft plate. Limiting rings are provided at both ends of the adjusting shaft. The left clamping plate and the left drive plate are clamped and fixed to the transmission belt. A drive ring is provided at the bottom of the left drive plate. The drive ring is movably connected to the adjusting shaft. The limiting ring limits the drive ring. A lock plate is fixedly connected to the shaft plate. A left lock hook is rotatably connected to the lock plate. A left latching ratchet is rotatably connected to the left lock hook. A stop is provided on the left drive plate corresponding to the left latching ratchet. The transmission drives the left drive plate to slide, causing the stop to move the left lock hook, thereby controlling the unlocking and locking of the mechanical lock assembly.

[0010] Furthermore, a limiting hook is provided at one end of the left lock hook near the right door panel assembly, and the end face of the limiting hook is provided with an inclined guide surface. The left latch ratchet is rotatably connected in the rotating groove at the other end of the left lock hook. A toggle block is provided at the top of the left latch ratchet, and an inclined surface is provided at the end of the toggle block away from the right door panel assembly. The bottom of the left latch ratchet away from the right door panel assembly extends downward to form a limiting stop, which abuts against the left lock hook.

[0011] Furthermore, a manual unlocking lever is fixedly connected to the bottom of the left locking hook near the limit hook. In the event of a power failure, the mechanical lock assembly can be unlocked by manually pushing the manual unlocking lever. Furthermore, the right door hanging plate assembly includes a second hanging wheel component, a hook, a right clamping plate, and a right drive plate. The second hanging wheel component is movably connected to the guide rail. A second shaft plate is fixedly connected to one end of the second hanging wheel component near the left door hanging plate assembly. An adjusting shaft is fixedly connected to the top of the second shaft plate. Limiting rings are provided at both ends of the adjusting shaft. The right clamping plate and the right drive plate are clamped and fixed on the transmission belt. A second drive ring is provided at the bottom of the right drive plate. The second drive ring is movably connected to the adjusting shaft. The limiting ring limits the second drive ring. A right hook is fixedly connected to the second shaft plate. The right hook is matched with the left lock hook. The transmission drives the left drive plate and the right drive plate to move in opposite directions or away from each other, thereby controlling the unlocking and locking of the mechanical lock assembly.

[0012] Furthermore, it also includes a left guide wheel assembly and a right guide wheel assembly. The left guide wheel assembly and the right guide wheel assembly are movably connected to both ends of the guide rail, corresponding to the left door mounting plate assembly and the right door mounting plate assembly, respectively. The left guide wheel assembly and the left door mounting plate assembly are fixedly connected to both ends of the left platform door, and the right guide wheel assembly and the right door mounting plate assembly are fixedly connected to both ends of the right platform door.

[0013] Furthermore, the left guide wheel assembly, the right guide wheel assembly, and the first and second hanging wheel components all include a mounting base plate, a fixing plate, guide rollers, and limit rollers. The fixing plate includes a connecting part and a fixing part. The connecting part is fixedly connected to the bottom of the fixing part. The fixing plate has an L-shaped structure. The fixing part is fixedly connected to the mounting base plate. The fixing part is used to connect the corresponding left platform door and right platform door. The top of the mounting base plate is bent to form a fixing block 1. The top of the fixing plate is bent to form a fixing block 2. A fastening screw is fixedly connected between fixing block 1 and fixing block 2. A fastening nut is screwed into the bottom of the fastening screw. The fastening nut is tightened on fixing block 2. The mounting base plate has a connecting hole and an elongated hole. The elongated hole is a stepped hole. The guide roller is rotatably connected to shaft 1. Shaft 1 is fixedly connected to the connecting hole. The limit roller is rotatably connected to shaft 2. Shaft 2 is fixedly connected to the elongated hole. The limit roller and the guide roller are respectively rotatably connected to both ends of the guide rail.

[0014] The present invention, by adopting the above-described technical solution, has the following beneficial effects: 1. This invention completely abandons the electromagnetic lock and its complex circuitry relied upon in traditional solutions, and instead adopts a purely mechanical linkage locking and unlocking mechanism; it eliminates the risk of lock malfunction or failure caused by circuit faults, oxidation of electrical contacts, electromagnetic interference or software logic errors from the source; the forced sequential action between mechanical components ensures the determinism and consistency of the locking process, and avoids the asynchronous problems that may occur when multiple locks are driven independently, thereby making the system more stable and durable in the high-frequency, high-load operation environment of rail transit.

[0015] 2. This invention significantly reduces the number of individual lock parts, electrical components, and related cables through integrated mechanical lock components and a unified drive layout. This not only reduces material procurement and production costs but also makes overall assembly and wiring simpler and more efficient. In long-term operation, the reduction in the number of parts directly translates into a lower probability of failure, simpler maintenance processes, and less spare parts inventory requirements, thereby effectively reducing maintenance and total cost of ownership over the product's lifecycle, bringing significant economic benefits to the operating unit.

[0016] 3. This invention utilizes a single motor in conjunction with a ring-shaped transmission belt to directly and synchronously drive the left and right door panel assemblies. The triggering of the mechanical lock is seamlessly integrated into the linear movement of the door panels. This design enforces a reliable sequence of actions: "unlock before moving" or "lock upon reaching the position," without the need for additional control logic or sensor intervention. The power transmission path is clear and efficient, ensuring absolute symmetry and consistency of the left and right door panel movements from a mechanical perspective, completely eliminating potential speed deviations, jamming, or uneven wear issues that may occur with dual-drive systems.

[0017] 4. This invention features a manually operated unlocking lever on the left locking hook. In emergency situations such as power outages or main drive failures, on-site personnel can directly operate the lever to forcibly release the lock using mechanical leverage, without the need for any external tools or power. This purely mechanical emergency unlocking solution provides crucial backup for passenger evacuation and emergency response, avoiding the risk of platform doors failing to open due to power outages, and significantly enhancing the system's public safety attributes and operational flexibility. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings: Figure 1 A schematic diagram of the existing platform door operator system with electromagnetic lock; Figure 2 This is a schematic diagram of the structure of a platform door operator system based on a mechanical lock according to the present invention; Figure 3 This is a schematic diagram of the active wheel assembly in this invention; Figure 4 This is a schematic diagram of the driven wheel assembly in this invention; Figure 5 This is a schematic diagram of the structure of the left door hanging panel assembly in this invention; Figure 6 This is a schematic diagram of the right door mounting plate assembly in this invention; Figure 7 This is a schematic diagram of the structure of the first lifting wheel component, the second lifting wheel component, the left guide wheel assembly, and the right guide wheel assembly in this invention; Figure 8 for Figure 8 A structural diagram of the back side; Figure 9 for Figure 5 Enlarged structural diagram at point A; Figure 10 This is a schematic diagram of the locking structure of the mechanical lock assembly in this invention; Figure 11 This is a schematic diagram of the opening structure of the mechanical lock assembly in this invention.

[0019] In the diagram, 1-machine beam; 2-left door hanging plate assembly; 3-right door hanging plate assembly; 4-drive wheel assembly; 5-driven wheel assembly; 6-ring transmission belt; 7-motor bracket; 8-electric motor; 9-drive wheel; 10-mounting slot one; 11-driven wheel mounting bracket; 12-driven wheel; 13-mounting slot two; 14-hanging wheel component one; 15-left lock hook; 16-left clamping plate; 17-left drive plate; 18-guide slide rail; 19-shaft plate one; 20-adjusting shaft one; 21-limiting ring one; 22-drive ring one; 23-locking plate one; 24-left collision lock ratchet; 25-stop block; 26-limiting hook part; 27-inclined guide surface; 28-rotating groove; 29-toggle block 30- Inclined surface; 31- Limiting block; 32- Manual unlocking rod; 33- Second hanging wheel assembly; 34- Right hook; 35- Right clamping plate; 36- Right drive plate; 37- Second shaft plate; 38- Second adjusting shaft; 39- Second limiting ring; 40- Second drive ring; 41- Left guide wheel assembly; 42- Right guide wheel assembly; 43- Mounting base plate; 44- Fixing plate; 45- Guide roller; 46- Limiting wheel; 47- Connecting part; 48- Fixing part; 49- First fixing block; 50- Second fixing block; 51- Fastening screw; 52- Fastening nut; 53- Oblong hole; 54- Motor drive device; 55- Driven wheel; 56- Belt; 57- Hanging wheel assembly; 58- Electromagnetic lock. Detailed Implementation

[0020] like Figures 1 to 11As shown, this invention discloses a platform door operator system based on mechanical locks, comprising a machine beam 1, a drive assembly, and a mechanical lock assembly. The drive assembly is mounted on the machine beam 1. The mechanical lock assembly includes a left door mounting plate assembly 2 and a right door mounting plate assembly 3, both of which are movably connected to the drive assembly. The left door mounting plate assembly 2 is used to connect to the left platform door, and the right door mounting plate assembly 3 is used to connect to the right platform door. The drive assembly controls the left door mounting plate assembly 2 and the right door mounting plate assembly 3 to move towards or away from each other, thereby completing the unlocking and locking of the mechanical lock assembly.

[0021] The drive assembly includes a drive wheel assembly 4, a driven wheel assembly 5, and an annular transmission belt 6. The drive wheel assembly 4 and the driven wheel assembly 5 are respectively fixedly connected to the two ends of the machine beam 1. The annular transmission belt 6 is rotatably connected between the drive wheel assembly 4 and the driven wheel assembly 5. The drive wheel assembly 4 drives the annular transmission belt 6 to rotate.

[0022] The drive layout employs a combination of a driving wheel, a driven wheel, and a ring-shaped transmission belt, resulting in a compact structure and a clear, efficient power transmission path. The ring-shaped transmission belt 6 smoothly and synchronously transmits power to the door panel assemblies on both sides, ensuring the symmetry and consistency of the left and right door panel movements and avoiding jamming or wear that may be caused by asynchronous dual drives. This layout concentrates the drive mechanism on the machine beam 1, saving installation space, and the adjustable belt tension facilitates installation and maintenance.

[0023] The drive wheel assembly 4 includes a motor bracket 7, an electric motor 8, and a drive wheel 9. The machine beam 1 is provided with a mounting groove 10. The motor bracket 7 is fixedly connected to the mounting groove 10 by a screw. The electric motor 8 is fixedly connected to the motor bracket 7. The output end of the electric motor 8 is rotatably connected to the drive wheel 9.

[0024] The motor bracket 7 is fixed in the mounting slot 10 by screws, which makes the installation and subsequent disassembly and replacement of the motor more convenient, and at the same time, it is easy to adjust the installation position of the motor.

[0025] Driven wheel assembly 5 includes driven wheel mounting bracket 11 and driven wheel 12. The machine beam 1 is provided with mounting groove 2 13. Driven wheel mounting bracket 11 is fixedly connected to mounting groove 2 13 by screws. Driven wheel 12 is rotatably connected to driven wheel mounting bracket 11.

[0026] The driven pulley bracket 11 is fixedly connected to the mounting groove 13 by a screw, which makes the installation and subsequent disassembly and replacement of the driven pulley more convenient, facilitates the adjustment of the installation position of the driven pulley, and facilitates the adjustment of the tension of the transmission belt to compensate for wear after long-term operation and maintain the best transmission condition.

[0027] The left door hanging plate assembly 2 includes a hanging wheel component 14, a left locking hook 15, a left clamping plate 16, and a left drive plate 17. Guide rails 18 are fixedly connected to both ends of the bottom of the machine beam 1. The hanging wheel component 14 is movably connected to the guide rails 18. A shaft plate 19 is fixedly connected to one end of the hanging wheel component 14 near the right door hanging plate assembly 3. An adjusting shaft 20 is fixedly connected to the top of the shaft plate 19. Limiting rings 21 are provided at both ends of the adjusting shaft 20. The left clamping plate 16 and the left drive plate 17 are clamped and fixed to the transmission belt. The left drive plate 1... The bottom of 7 is provided with a drive ring 22, which is movably connected to the adjusting shaft 20. The limiting ring 21 limits the drive ring 22. The shaft plate 19 is fixedly connected with a locking plate 23. The locking plate 23 is rotatably connected with a left locking hook 15. The left locking hook 15 is rotatably connected with a left locking ratchet 24. The left drive plate 17 is provided with a stop block 25 corresponding to the left locking ratchet 24. The transmission drives the left drive plate 17 to slide, so that the stop block 25 moves the left locking hook 15, thereby controlling the unlocking and locking of the mechanical lock assembly.

[0028] By fixing the clamp plate and drive plate to the transmission belt, the linear motion of the belt is directly converted into the movement of the door leaf. At the same time, the linkage between the stop block on the drive plate and the left latch ratchet and left lock hook, through the drive ring, adjustment shaft and limit ring structure, realizes the automatic triggering of the locking action when the door leaf reaches the closed position, or the unlocking before movement when opening. This mechanical linkage eliminates the need for a separate locking drive source, and the action sequence is reliable and accurate. It ensures smooth power transmission and accurate execution of the locking action, greatly improving the system integration and operation reliability.

[0029] The left lock hook 15 is provided with a limiting hook 26 at one end near the right door hanging plate assembly 3. The end face of the limiting hook 26 is provided with an inclined guide surface 27. The left latch ratchet 24 is rotatably connected in the rotating groove 28 at the other end of the left lock hook 15. The top of the left latch ratchet 24 is provided with a toggle block 29. The end of the toggle block 29 away from the right door hanging plate assembly 3 is provided with an inclined surface 30. The bottom of the left latch ratchet 24 away from the right door hanging plate assembly 3 extends downward to form a limiting stop 31. The limiting stop 31 abuts against the left lock hook 15.

[0030] The inclined guide surface 27 of the limiting hook 26 cooperates with the inclined surface 30 of the latching ratchet actuating block 29, allowing for smooth engagement even with slight misalignment between the left and right door panels during locking, achieving self-adaptive alignment and improving the success rate and fault tolerance of locking. The design of the limiting stop 31 limits the swing range of the latching ratchet, ensuring its positional accuracy and stability when in contact with the drive plate stop 25, preventing failure or wear caused by excessive swing. This refined geometry and limiting design makes the mechanical locking action both smooth and precise, enhancing the durability and reliability of the lock.

[0031] The bottom of the left locking hook 15 near the limit hook 26 is fixedly connected to a manual unlocking rod 32. In the event of power failure, the mechanical lock assembly can be unlocked by manually pushing the manual unlocking rod 32.

[0032] The manual unlocking lever 32 provides crucial fail-safe and emergency protection. In the event of a power outage or main drive failure, on-site personnel can directly operate the lever to forcibly release the locked state via mechanical leverage, enabling the platform doors to open in an emergency, without relying on any external power or special tools. This design significantly enhances the system's safety redundancy, complies with rail transit emergency evacuation safety regulations, avoids the potential risk of doors failing to open due to power outages, and ensures passenger safety and operational emergency response capabilities.

[0033] The right door hanging plate assembly 3 includes a second hanging wheel 33, a hook 34, a right clamping plate 35, and a right drive plate 36. The second hanging wheel 33 is movably connected to the guide rail 18. The end of the second hanging wheel 33 near the left door hanging plate assembly 2 is fixedly connected to a shaft plate 37. The top of the shaft plate 37 is fixedly connected to an adjusting shaft 38. The two ends of the adjusting shaft 38 are provided with limiting rings 39. The right clamping plate 35 and the right drive plate 36 are clamped and fixed on the transmission belt. The bottom of the right drive plate 36 is provided with a drive ring 40, which is movably connected to the adjusting shaft 38. The limiting ring 39 limits the drive ring 40. The right hook 34 is fixedly connected to the shaft plate 37. The right hook 34 is matched with the left lock hook 15. The transmission drives the left drive plate 17 and the right drive plate 36 to move towards or away from each other, thereby controlling the unlocking and locking of the mechanical lock assembly.

[0034] The right hook 34 serves as the receiving component for locking and precisely engages with the limiting hook 26 of the left locking hook 15. The left and right drive plates are driven to move synchronously in opposite directions or in opposite directions via the same annular transmission belt 6, ensuring strict synchronization and coordination of the left and right door leaf movements during locking and unlocking, thus achieving true mechanical interlocking.

[0035] It also includes a left guide wheel assembly 41 and a right guide wheel assembly 42. The left guide wheel assembly 41 and the right guide wheel assembly 42 are movably connected to the two ends of the guide rail 18, respectively, corresponding to the left door hanging plate assembly 2 and the right door hanging plate assembly 3. The left guide wheel assembly 41 and the left door hanging plate assembly 2 are fixedly connected to the two ends of the left platform door, and the right guide wheel assembly 42 and the right door hanging plate assembly 3 are fixedly connected to the two ends of the right platform door.

[0036] By setting independent left and right guide wheel assemblies and placing them at the upper and lower ends of the platform gate along with the door hanging plate assembly, a double-point support and guiding structure is formed. This layout greatly enhances the stability and rigidity of the door leaf during operation, preventing door leaf swaying, tilting, or jamming that may be caused by single-point suspension. The synchronous upper and lower guidance ensures that the door leaf always moves smoothly along the predetermined trajectory, reducing the torsional load on the hinge point of the door hanging plate assembly and improving the service life of all moving parts. At the same time, it distributes the door leaf load more evenly on the machine beam 1, improving the structural load-bearing capacity and operational stability of the entire gantry crane system.

[0037] The left guide wheel assembly 41, the right guide wheel assembly 42, the first hanging wheel component 14, and the second hanging wheel component 33 all include a mounting base plate 43, a fixing plate 44, a guide roller 45, and a limiting wheel 46. The fixing plate 44 includes a connecting part 47 and a fixing part 48. The connecting part 47 is fixedly connected to the bottom of the fixing part 48. The fixing plate 44 has an L-shaped structure. The fixing part 48 is fixedly connected to the mounting base plate 43. The fixing part 48 is used to connect the corresponding left platform door and right platform door. The top of the mounting base plate 43 is bent to form a fixing block 49, and the top of the fixing plate 44 is correspondingly bent to form a fixing block. A fastening screw 51 is fixedly connected between the fixing block 49 and the fixing block 50. A fastening nut 52 is screwed into the bottom of the fastening screw 51 and tightened onto the fixing block 50. The mounting base plate 43 has a connecting hole and an oblong hole 53 through it. The oblong hole 53 is a stepped hole. The guide roller 45 is rotatably connected to the shaft 1, which is fixedly connected to the connecting hole. The limiting roller 46 is rotatably connected to the shaft 2, which is fixedly connected to the oblong hole 53. The limiting roller 46 and the guide roller 45 are respectively rotatably connected to the two ends of the guide slide rail 18.

[0038] The design of the left guide wheel assembly 41, right guide wheel assembly 42, hanging wheel component 14, and hanging wheel component 33 offers high adjustability and adaptability. The rollers are mounted via a shaft using an elongated hole 53 and a stepped hole, allowing for fine-tuning of the guide rollers and limit wheels to precisely accommodate the gaps in the guide rails, ensuring smooth rolling without excessive wobbling, while also compensating for installation errors and long-term wear. The connection between the L-shaped fixing plate 44 and the fastening screws 51 and nut 52 facilitates adjustment of the connection height and flatness with the door leaf, achieving precise leveling of the door leaf. The guide rollers 45 bear the main weight and provide movement guidance, while the limit wheels 46 prevent the components from detaching from the rails, providing double protection for operational safety.

[0039] This invention achieves synchronous and integrated control of actions by designing mechanical lock components and drive components, completely eliminating the need for traditional electromagnetic locks and their associated circuit systems. This not only significantly reduces the number of electrical contacts and independent lock parts, thereby reducing the risk of operational abnormalities caused by circuit failures, electromagnetic interference, or lock asynchrony, but also simplifies the overall assembly and debugging process. The system reliability is substantially improved, and the reduction in components and simplification of structure significantly reduces production and long-term maintenance costs, making it particularly suitable for high-frequency, high-reliability rail transit station environments.

[0040] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A platform door operator system based on mechanical locks, characterized in that: The system includes a machine beam, a drive assembly, and a mechanical lock assembly. The drive assembly is mounted on the machine beam. The mechanical lock assembly includes a left door mounting plate assembly and a right door mounting plate assembly, both of which are movably connected to the drive assembly. The left door mounting plate assembly is used to connect to the left platform door, and the right door mounting plate assembly is used to connect to the right platform door. The drive assembly controls the left door mounting plate assembly and the right door mounting plate assembly to move towards or away from each other, thereby completing the unlocking and locking of the mechanical lock assembly.

2. The platform door operator system based on mechanical locks according to claim 1, characterized in that: The drive assembly includes a drive wheel assembly, a driven wheel assembly, and an annular transmission belt. The drive wheel assembly and the driven wheel assembly are respectively fixedly connected to both ends of the machine beam. An annular transmission belt is rotatably connected between the drive wheel assembly and the driven wheel assembly, and the drive wheel assembly drives the annular transmission belt to rotate.

3. A platform door operator system based on a mechanical lock according to claim 2, characterized in that: The drive wheel assembly includes a motor bracket, an electric motor, and a drive wheel. The machine beam is provided with a mounting groove. The motor bracket is fixedly connected to the mounting groove by a screw. The electric motor is fixedly connected to the motor bracket. The output end of the electric motor is rotatably connected to the drive wheel.

4. A platform door operator system based on a mechanical lock according to claim 2, characterized in that: The driven wheel assembly includes a driven wheel mounting bracket and a driven wheel. The machine beam is provided with a second mounting groove. The driven wheel mounting bracket is fixedly connected to the second mounting groove by a screw. The driven wheel is rotatably connected to the driven wheel mounting bracket.

5. A platform door operator system based on a mechanical lock according to claim 2, characterized in that: The left door hanging plate assembly includes a first hanging wheel component, a left lock hook, a left clamping plate, and a left drive plate. Guide rails are fixedly connected to both ends of the bottom of the machine beam. The first hanging wheel component is movably connected to the guide rails. A shaft plate is fixedly connected to one end of the first hanging wheel component near the right door hanging plate assembly. An adjusting shaft is fixedly connected to the top of the first shaft plate. Limiting rings are provided at both ends of the adjusting shaft. The left clamping plate and the left drive plate are clamped and fixed to the transmission belt. A drive ring is provided at the bottom of the left drive plate. The drive ring is movably connected to the adjusting shaft. The limiting rings limit the drive ring. A locking plate is fixedly connected to the first shaft plate. A left lock hook is rotatably connected to the first locking plate. A left latching ratchet is rotatably connected to the left lock hook. A stop is provided on the left drive plate corresponding to the left latching ratchet. The transmission drives and controls the sliding of the left drive plate, causing the stop to move the left lock hook, thereby controlling the unlocking and locking of the mechanical lock assembly.

6. A platform door operator system based on a mechanical lock according to claim 5, characterized in that: The left lock hook has a limiting hook at one end near the right door panel assembly. The end face of the limiting hook has an inclined guide surface. The left latch ratchet is rotatably connected to the rotating groove at the other end of the left lock hook. The top of the left latch ratchet has a toggle block. The toggle block has an inclined surface at the end away from the right door panel assembly. The bottom of the left latch ratchet extends downward to form a limiting stop at the end away from the right door panel assembly. The limiting stop abuts against the left lock hook.

7. A platform door operator system based on a mechanical lock according to claim 6, characterized in that: The left locking hook is fixedly connected to a manual unlocking rod at its bottom near the limiting hook. In the event of a power failure, the mechanical lock assembly can be unlocked by manually pushing the manual unlocking rod.

8. A platform door operator system based on a mechanical lock according to claim 5, characterized in that: The right door hanging plate assembly includes a second hanging wheel component, a right hook, a right clamping plate, and a right drive plate. The second hanging wheel component is movably connected to the guide slide rail. A second shaft plate is fixedly connected to one end of the second hanging wheel component near the left door hanging plate assembly. An adjusting shaft is fixedly connected to the top of the second shaft plate. Limiting rings are provided at both ends of the adjusting shaft. The right clamping plate and the right drive plate are clamped and fixed to the transmission belt. A second drive ring is provided at the bottom of the right drive plate. The second drive ring is movably connected to the second adjusting shaft. The limiting ring limits the second drive ring. A right hook is fixedly connected to the second shaft plate. The right hook is matched with the left lock hook. The transmission drives the left drive plate and the right drive plate to move towards or away from each other, thereby controlling the unlocking and locking of the mechanical lock assembly.

9. A platform door operator system based on a mechanical lock according to claim 8, characterized in that: It also includes a left guide wheel assembly and a right guide wheel assembly, the left guide wheel assembly and the right guide wheel assembly being movably connected to both ends of the guide rail, respectively, corresponding to the left door hanging plate assembly and the right door hanging plate assembly. The left guide wheel assembly and the left door hanging plate assembly are respectively fixedly connected to both ends of the left platform door, and the right guide wheel assembly and the right door hanging plate assembly are respectively fixedly connected to both ends of the right platform door.

10. A platform door operator system based on a mechanical lock according to claim 9, characterized in that: The left guide wheel assembly, the right guide wheel assembly, the first hanging wheel component, and the second hanging wheel component all include a mounting base plate, a fixing plate, guide rollers, and limiting wheels. The fixing plate includes a connecting part and a fixing part. The connecting part is fixedly connected to the bottom of the fixing part. The fixing plate has an L-shaped structure. The fixing part is fixedly connected to the mounting base plate and is used to connect the corresponding left and right platform doors. The top of the mounting base plate is bent to form a fixing block one, and the top of the fixing plate is correspondingly bent to form a fixing block two. A fastening screw is fixedly connected between Block 1 and the fixing block 2. A fastening nut is screwed into the bottom of the fastening screw and tightened onto the fixing block 2. The mounting base plate has a connecting hole and an oblong hole through it. The oblong hole is a stepped hole. The guide roller is rotatably connected to the shaft 1 and the shaft 1 is fixedly connected to the connecting hole. The limiting roller is rotatably connected to the shaft 2 and the shaft 2 is fixedly connected to the oblong hole. The limiting roller and the guide roller are respectively rolledly connected to both ends of the guide rail.

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