An isolation device, a remote isolation system and a remote isolation method

Abstract

The application discloses an isolation device, a remote isolation system and a remote isolation method. The isolation device comprises a remote isolation mechanism, the remote isolation mechanism comprises a bottom plate, a dial plate switch, a remote isolation switch, a lock hook shaft and a locking device which are installed on the bottom plate; the locking device is used for locking the lock hook and the dial plate in a locking position, the lock hook and the dial plate can be pushed by a driving part after being unlocked; in the locking position, the dial plate switch and the remote isolation switch are limited to be released; in an isolation position, the lock hook part of the lock hook can restrict the Y direction position of the driving part, the dial plate makes the dial plate switch release, and a phase difference space allowing the remote isolation switch to release is formed between the lock hook and the dial plate. The application distinguishes the isolation state through the release of the dial plate switch and the remote isolation switch, prevents the problem of false isolation, eliminates the problem of remote isolation failure caused by the adoption of a lock-to-position switch assembly and a close-to-position switch assembly, and improves the adaptability of remote isolation.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, specifically to an isolation device, a remote isolation system, and a remote isolation method. Background Technology

[0002] Subway vehicle door systems are used very frequently, and malfunctions are inevitable during subway vehicle operation. When a door malfunctions and isolation is necessary, the driver (on manned lines) or inspector (on driverless lines) must personally go to the malfunctioning door, manually close it, and isolate it using a local isolation device, thus taking the door system out of service. Manual isolation operations can easily cause train delays and affect operational efficiency, making the need for remote isolation devices increasingly urgent.

[0003] The urban rail transit dead-point locking plug door system has a smaller X-axis (vehicle length direction) dimension for its load-bearing drive mechanism than conventional mechanisms, essentially shortened to within the movable top cover, facilitating inspection and maintenance. Its lower cost also contributes to its increasing popularity. However, due to limitations such as the narrower X-axis space in the middle of the mechanism and the locking method, there is currently no remote isolation device for this door system.

[0004] For example, the remote isolation device involved in the patent application with publication number CN102815312B occupies a large size in the length and width of the vehicle, which cannot meet the more stringent space requirements of the dead-point locking plug door system. More seriously, it adopts the form of series judgment of the closed position switch and the locked position switch, which is prone to problems such as failure of the closed and locked position switches leading to the inability to remotely isolate. Summary of the Invention

[0005] The purpose of this invention is to provide an isolation device, a remote isolation system, and a remote isolation method to solve the problem of low adaptability of remote isolation in the prior art.

[0006] To achieve the above objectives, the present invention is implemented using the following technical solution:

[0007] In a first aspect, the present invention discloses an isolation device, including a remote isolation mechanism. The remote isolation mechanism includes a base plate, a toggle switch mounted on the base plate, a remote isolation switch, a locking hook shaft, and a locking device. The locking hook and the toggle switch are rotatably connected to the locking hook shaft by elastic elements.

[0008] The locking device is used to lock the locking hook and the lever in the locked position. After the locking hook and the lever are unlocked, the locking hook and the lever can be pushed to the isolation position by the driving member.

[0009] In the locked position, the toggle switch and the remote disconnect switch are restricted from release; in the disconnected position, the hook portion of the lock hook has a constraint space that constrains the Y-axis position of the drive member, the toggle switch releases the toggle switch, and a phase difference space is formed between the lock hook and the toggle switch that allows the remote disconnect switch to be released.

[0010] Furthermore, the lock hook is provided with a lock hook sidewall one, and the lever plate is provided with a lever plate sidewall two and a lever plate sidewall one, and the phase difference space is formed between the lock hook sidewall one and the lever plate sidewall two;

[0011] In the locked position, the first sidewall of the locking hook and / or the second sidewall of the toggle switch contact the remote disconnect switch roller on the remote disconnect switch to restrict the release of the remote disconnect switch; the first sidewall of the toggle switch contacts the toggle switch roller of the toggle switch to restrict the release of the toggle switch.

[0012] In the isolation position, the phase difference space reaches a set value, and the remote isolation switch roller falls into the phase difference space formed by the first locking hook sidewall and the second toggle sidewall, and the remote isolation switch is released; from the locked position to the isolation position, the toggle switch roller is pushed by the first toggle sidewall at a certain angle so that the toggle switch is released.

[0013] Furthermore, the locking hook and the lever also have an intermediate position;

[0014] In the intermediate position, the first sidewall of the locking hook and / or the second sidewall of the toggle switch are in contact with the remote disconnect switch roller on the remote disconnect switch, and the phase difference space formed between the first sidewall of the locking hook and the sidewall of the toggle switch is less than a set value to restrict the release of the remote disconnect switch; the first sidewall of the toggle switch is in contact with the toggle switch roller of the toggle switch to restrict the release of the toggle switch.

[0015] Furthermore, the locking device includes a pawl, which is fixed on a pawl shaft, and the pawl shaft is rotatably connected to the base plate; the base plate is provided with a driving member, and the output end of the driving member is connected to the pawl shaft through a connecting rod;

[0016] In the locked position, the pawl engages the locking hook, and the elastic element is compressed.

[0017] Furthermore, the elastic element includes a locking hook spring and a torsion spring.

[0018] The two ends of the locking hook spring are respectively connected to the locking hook and the base plate;

[0019] One end of the torsion spring is connected to the torsion plate, and the other end is connected to the base plate or the locking hook.

[0020] Furthermore, the locking hook is provided with a limiting pin, which is located on the side of the toggle plate away from the toggle switch.

[0021] In a second aspect, the present invention discloses a remote isolation system, including a safety interlock circuit and an isolation device as described in any one of the first aspects;

[0022] The toggle switch and the remote disconnect switch are connected in series between one end of the safety circuit and the other end of the safety circuit in the safety interlock circuit. When the toggle switch and the remote disconnect switch are released, the safety interlock circuit is connected.

[0023] In this scheme, the toggle switch and the remote disconnect switch are connected in series to the safety interlock circuit, instead of a single remote disconnect switch being connected to the safety interlock circuit. This avoids the problem of the interlock circuit being incorrectly closed due to the remote disconnect switch always giving a false isolation signal because of its own body. This reduces the safety risks caused by starting the train without isolation or starting the train without closing the door.

[0024] Furthermore, it also includes a load-bearing drive mechanism, which includes a central support, a latch, and a motor;

[0025] The base plate is connected to the central support. When the motor is started, it realizes the door closing action. The latch is used to drive the lock hook and the lever to move when the door is closed and to be hooked by the lock hook to form a Y-direction constraint.

[0026] Thirdly, the present invention discloses a remote isolation method, implemented based on the remote isolation system of any one of the second aspects, the method comprising:

[0027] In response to a remote isolation failure, a first control signal is sent, which is used to control the locking device to release the locking of the locking hook and the lever.

[0028] After a preset time has elapsed since the first control signal was sent, a second control signal is sent, which is used to control the system to perform the door closing action.

[0029] Within a preset time after the door closing action is executed, determine whether the toggle switch and the remote isolation switch have been released, determine whether the remote isolation is successful, and whether the isolation indicator light is on.

[0030] In response to the release of the toggle switch and the remote disconnect switch, the safety interlock circuit is activated, and the vehicle departs.

[0031] According to the above technical solution, the beneficial effects of the present invention are as follows:

[0032] This invention is designed so that the toggle switch and the remote isolating switch can only be released when the switch is in the isolated position, and cannot be released when the switch is locked. The release of the toggle switch and the remote isolating switch is used to determine the isolation status, which prevents false isolation and eliminates the problem of remote isolation failure due to lock-in switch failure caused by the use of lock-in switch assembly and lock-out switch assembly for determination, thus improving the adaptability of remote isolation.

[0033] When the device is in the isolated position, the locking hook portion of the lock hook can form a Y-direction constraint on the latch. If the mechanical lock of the door fails due to a malfunction, the locking hook portion constrains the latch to ensure the locking effect of the isolation device on the door, ensuring that the door cannot be opened, thus providing high security. Attached Figure Description

[0034] Figure 1 This is a front view of the remote isolation system of the present invention;

[0035] Figure 2 This is a side view of the remote isolation system of the present invention;

[0036] Figure 3 This is a schematic diagram of the isolation device of the present invention in the isolation state;

[0037] Figure 4 This is a partial schematic diagram of the isolation state of the isolation device in this invention;

[0038] Figure 5 This is a schematic diagram of the switch release in the isolation state of the isolation device in this invention;

[0039] Figure 6 This is a schematic diagram of the switch triggering in the reset state of the isolation device in this invention;

[0040] Figure 7 This is a schematic diagram of the installation of the isolation device in this invention;

[0041] Figure 8 This is a partial schematic diagram of the intermediate state during the isolation process of the isolation device in this invention;

[0042] Figure 9 This is a partial schematic diagram of the safety interlock circuit of a remote isolation system;

[0043] Figure 10 This is a control logic diagram of the remote isolation method of the present invention.

[0044] The components are as follows: 1-Remote isolation mechanism; 2-Bearing drive mechanism; 3-Screw; 4-Closed position switch assembly; 5-Transmission frame; 6-Locked position switch assembly; 7-Long guide column; 8-Upper slide rail; 9-Frame body; 10-Slide cylinder assembly; 11-Lock; 12-Middle support; 13-Lock movement path; 14-Motor; 15-Nut assembly; 16-Hinge seat; 101-Base plate; 102-Lock hook shaft; 103-Lock hook; 104-Pulley; 105-Pawl shaft; 106-Pawl; 107-Pulley switch; 108-Remote isolation switch; 109-Lock hook spring; 110-Pulley torsion spring; 111-Pawl torsion spring; 112-Electromagnet; 113-Connecting rod; 114-Manual reset handle; 116-Hook sidewall one; 117-Toggle sidewall two; 118-Toggle sidewall one; 119-Toggle switch roller; 120-Remote disconnect switch roller; 121-Limit pin; 123-Safety circuit one end; 124-Safety circuit two end; 125-Toggle switch roller movement trajectory; 126-Remote disconnect switch roller movement trajectory. Detailed Implementation

[0045] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0046] It should be noted that in the description of this invention, the terms "front," "rear," "left," "right," "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "front," "rear," "left," "right," "upper," and "lower" used in the description of this invention refer to the directions shown in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0047] The isolation device of the present invention, such as Figures 3-8 As shown, the isolation device includes a remote isolation mechanism 1, which includes a base plate 101. In this invention, the base plate 101 mainly serves to support the installation. A remote isolation switch 108, a toggle switch 107, and a locking hook shaft 102 are installed on the base plate 101. The locking hook shaft 102 is fixedly connected to the base plate 101. The remote isolation switch 108 and the toggle switch 107 are rotatably connected to the locking hook shaft 102. The base plate 101 is also provided with a locking device for locking the positions of the remote isolation switch 108 and the toggle switch 107.

[0048] The locking hook 103 and the toggle plate 104 in the isolation device of the present invention have a locking position and an isolation position. The locking position is the position where the locking device engages the locking hook 103 and / or the toggle plate 104. At this time, due to the action of the locking device, the positions of the locking hook and the toggle plate are fixed; the toggle switch 107 and the remote isolation switch 108 cannot be released.

[0049] When the locking device releases the locking hook 103 and the toggle plate 104, the positions of the locking hook 103 and the toggle plate 104 can be changed. At this time, the positions of the locking hook 103 and the toggle plate 104 can be pushed to the isolation position. In the isolation position, the toggle switch 107 is released. The locking hook portion of the locking hook 103 can form a Y-direction constraint on the driving member. A phase difference space is formed between the locking hook 103 and the toggle plate 104 to allow the remote isolation switch 108 to be released.

[0050] This invention is designed so that the toggle switch and the remote isolating switch can only be released when the switch is in the isolated position, and cannot be released when the switch is locked. The release of the toggle switch and the remote isolating switch is used to determine the isolation status, which prevents false isolation and eliminates the problem of failure to remotely isolate caused by using a locked-in switch assembly and a closed-in switch assembly for determination, thus improving the adaptability of remote isolation.

[0051] In a further embodiment, the locking hook 103 and the lever 104 in the isolation device have intermediate states in addition to the locked position and the isolation position. Since there are many intermediate states, this invention describes one of the positions, namely, the position reached by the locking hook 103 and the lever 104 under the action of the elastic element after the locking device releases the locking hook 103 and the lever 104. This is denoted as the intermediate position. In the intermediate position, the phase difference space formed by the locking hook 103 and the lever 104 is less than a set value, which is insufficient to cause the roller of the remote isolation switch 108 to fall in, thus restricting the release of the remote isolation switch 108.

[0052] In a further embodiment, the locking hook 103 includes a first main body and a locking hook portion connected to the first main body, the first main body having a locking hook sidewall 116. The lever 104 includes a second main body and a lever portion connected to the second main body, the second main body having a lever sidewall 118 and a lever sidewall 117.

[0053] The first and second main body portions are provided with shaft holes, which are fitted onto the locking hook shaft 102 to form a rotatable connection with the locking hook shaft 102. The driving member causes the first and second main body portions to rotate by acting on the locking hook portion and the lever portion, that is, the locking hook 103 and the lever 104 rotate.

[0054] In this invention, the release of the toggle switch 107 and the remote disconnect switch 108 means that the rollers on them are pushed a distance greater than 2.8 mm (in the length direction of the switch body).

[0055] In the locked position, the locking hook sidewall 116 and / or the toggle sidewall 117 contact the remote disconnect switch roller 120 on the remote disconnect switch 108 to restrict the release of the remote disconnect switch 108; the toggle sidewall 118 contacts the toggle switch roller 119 on the toggle switch 107 to restrict the release of the toggle switch 107.

[0056] In the intermediate position, the locking hook sidewall 116 and / or the toggle sidewall 117 contact the remote disconnect switch roller 120 on the remote disconnect switch 108, with the phase difference space being less than a set value, to restrict the release of the remote disconnect switch 108.

[0057] In the isolated position, when the phase difference space reaches or exceeds the set value, the remote isolation switch roller 120 falls into the phase difference space formed by the lock hook side wall 116 and the toggle side wall 117, and the remote isolation switch 108 is released; the toggle switch roller 119 is pushed by the toggle side wall 118 at a certain angle so that the toggle switch 107 is released.

[0058] Furthermore, the phase difference is set to approximately 15°.

[0059] like Figure 5 , Figure 6 and Figure 8 The diagram shows the movement trajectory 125 of the toggle switch wheel and the movement trajectory 126 of the remote disconnect switch wheel when the toggle switch and the remote disconnect switch are in motion.

[0060] When the toggle switch 104 moves to the isolation position, the toggle switch sidewall 118 pushes the toggle switch 107 to the release state. When the locking hook 103 and the toggle switch 104 rotate to the isolation position, a phase difference space is formed between the locking hook sidewall 116 and the toggle switch sidewall 117. This phase difference space reaches a set value, which can accommodate the remote isolation switch roller 120 on the remote isolation switch 108. At this time, the remote isolation switch 108 is released. At the same time, the locking hook part of the locking hook 103 can form a Y-direction constraint on the latch.

[0061] This design allows the disconnecting switch of this invention to generate a phase difference between the locking hook and the toggle switch as they move along with the latch (driving component) during isolation. When the mechanical door is locked in place, the locking hook forms a Y-axis constraint on the latch, and the phase difference between the locking hook and the toggle switch allows the remote disconnecting switch roller to fall in, thus releasing the remote disconnecting switch. At the same time, the toggle switch is also designed to be released during this process. This dual-switch release reduces the risk of "false isolation" and solves the problem of easy failure of traditional closed and locked switches.

[0062] In one embodiment, the locking device is in the form of a prime mover driving a pawl 106. Specifically, the pawl 106 is fixed on the pawl shaft 102, which is rotatably connected to the base plate 101. The base plate 101 is provided with a prime mover, one end of the connecting rod 113 is fixedly connected to the pawl shaft 102, and the other end is provided with a waist-shaped groove to connect to the output end of the prime mover.

[0063] In the locked position, the pawl 106 engages the first main body of the locking hook 103 and / or the second main body of the lever 104, at which point the elastic element is compressed. The driving element rotates the pawl 106, releasing it from engagement with the first and / or second main bodies. At this point, the locking hook 103 and the lever 104 are unlocked, and under the action of the elastic element, the locking hook 103 and the lever 104 move to the intermediate position.

[0064] Furthermore, the driving element is an electromagnet 112, which is fixedly connected to the base plate 101. The output end of the electromagnet 112 is connected to the connecting rod 113. The use of the electromagnet 112 facilitates automatic control. By sending a control signal to the electromagnet 112, the locking of the hook 103 and the lever 104 can be released.

[0065] Furthermore, the pawl 106 is also provided with a pawl torsion spring 111 so that the pawl 106 can be reset to the locked state.

[0066] Furthermore, the isolation device is equipped with a manual reset handle 114, which is fixedly connected to the locking hook 103 and moves in the groove of the base plate 101. It is used to limit the rotation of the locking hook 103 and can also be used for manual unlocking and reset of the remote isolation mechanism 1. When the electromagnet 112 is de-energized, manually operating the manual reset handle 114 causes the locking hook 103 and the toggle plate 104 to rotate clockwise (towards...). Figure 3 (Example direction opposite) Turn back to a certain position, the pawl 106 moves to the locking position under the action of the pawl torsion spring 111, enters the locking hook 103, and the toggle switch 107 and the remote isolation switch 108 are triggered, then the reset operation is completed.

[0067] In one embodiment, the elastic element includes a locking hook spring 109 and a torsion spring 110. The two ends of the locking hook spring 109 are connected to the locking hook 103 and the base plate 101, respectively. One end of the torsion spring 110 is connected to the torsion plate 104, and the other end is connected to either the base plate 101 or the locking hook 103. This ensures that the locking hook 103 and the torsion plate 104 automatically return to the intermediate position after being unlocked.

[0068] In one embodiment, the locking hook 103 is provided with a limiting pin 121, which is located on the side of the toggle switch 107 away from the toggle plate 104. The limiting pin 121 can prevent the toggle plate 104 from rotating counterclockwise around the locking hook shaft 102. Figure 3 (As shown by the rotating arrow in the illustration) rotate past the lock hook 103.

[0069] The present invention also provides a remote isolation system, which includes a safety interlock circuit and an isolation device according to any embodiment of the present invention. The remote isolation switch 108 and the toggle switch 107 are connected in series between one end 123 and the other end 124 of the safety interlock circuit, so that the safety interlock circuit is connected when the remote isolation switch 108 and the toggle switch 107 are released.

[0070] Remote disconnect switches and toggle switches are used infrequently and have high reliability. Instead of a single remote disconnect switch being connected in series to the safety interlock circuit, two switches (remote disconnect switch 108 and toggle switch 107) are used. This avoids the problem of the interlock circuit malfunctioning due to the remote disconnect switch consistently providing a false disconnect signal, thus reducing the safety risks caused by starting the train without disconnection or without closing the doors.

[0071] Furthermore, the remote isolation system includes a load-bearing drive mechanism 2, which comprises a central support 101, a lead screw 3, a nut assembly 15, a long guide column 7, an upper slide rail 8, a frame body 9, a slide cylinder assembly 10, a latch 11, a motor 14, a closed-position switch assembly 4, a transmission frame 5, and a locked-position switch assembly 6. The base plate 101 of the remote isolation device 1 is fixedly connected to the central support 101. The lead screw 3 is rotatably connected to the frame body 9 of the load-bearing drive mechanism 2. The motor 14 drives the lead screw 3 to rotate. The nut assembly 4 converts the rotation of the lead screw 3 into translation through the lead screw and nut pair. The long guide column 7 is used for supporting the door system, and the upper slide rail 8 is used for guiding the movement of the door system. The slide cylinder assembly 10 is rotatably connected to the long guide column 7. The hinge seat 16 is fixedly connected to the slide cylinder assembly 10. The transmission frame 5 connects the hinge seat 16 and the nut assembly 4 to transmit power. During its movement, it passes through a dead point, thereby locking the load-bearing drive mechanism 2 of the urban rail dead-point locking plug door system. The closed position switch assembly 4 and the locked position switch assembly 6 are used to provide the door controller with electrical signals indicating the closed and locked states of the door system.

[0072] The latch 11 is fixedly connected to the slide cylinder assembly 10 or the hinge seat 16, and cooperates with the latch 103 on the remote isolation device 1 to form a mechanical isolation lock on the load-bearing drive mechanism 2. When performing the door closing operation, the latch 11 moves inward along the latch movement path 13 (depending on the upper slide rail 8) to drive the latch 103 and the lever 104 to move. Since the locking device unlocks the latch 103 and the lever 104 when performing the door closing operation, the latch 103 and the lever 104 can be pushed when the door is closed.

[0073] The isolation device and remote isolation system of the present invention will be described below through a specific embodiment.

[0074] The remote isolation mechanism 1 mainly consists of a base plate 101, a locking hook shaft 102, a locking hook 103, a lever plate 104, a pawl shaft 105, a pawl 106, a lever switch 107, and a remote isolation switch 108. The locking hook shaft 102 is fixedly connected to the base plate 101, and the pawl shaft 105 is rotatably connected to the base plate 101. The locking hook 103 and the lever plate 104 are rotatably connected to the locking hook shaft 102. A limit pin 121 is fixedly connected to the locking hook 103, preventing the lever plate 104 from rotating counterclockwise around the locking hook shaft 102. Figure 3 (As shown by the rotating arrow in the diagram) it rotates past the locking hook 103. The locking hook spring 109 connects the locking hook 103 and the base plate 101, and the lever torsion spring 110 connects the lever 104 and the base plate 101 (or the locking hook 103).

[0075] Toggle switch 107 and remote disconnect switch 108 are fixedly connected to base plate 101. The release of remote disconnect switch 108 depends on the differential action of toggle 104 and locking hook 103, and the triggering of remote disconnect switch 108 depends on locking hook 103. The release and triggering of toggle switch 107 depend on toggle 104.

[0076] The manual reset handle 114 is fixedly connected to the lock hook 103 and moves in the groove of the base plate 101. It is used to limit the rotation of the lock hook 103 and can also be used for manual unlocking and reset of the remote isolation device 1.

[0077] Electromagnet 112 is fixedly connected to base plate 101. One end of connecting rod 113 is fixedly connected to pawl shaft 102, and the other end is provided with waist-shaped groove to connect to electromagnet 112. Pawl 106 is fixedly connected to pawl shaft 102.

[0078] The base plate 101 of the remote isolation mechanism 1 is fixedly connected to the middle support 101 on the load-bearing drive mechanism 2. The load-bearing drive mechanism 2 mainly consists of a lead screw 3, a nut assembly 15, a long guide column 7, an upper slide rail 8, a frame body 9, a slide cylinder assembly 10, a motor 14, a closed position switch assembly 4, a transmission frame 5, and a locked position switch assembly 6. The lead screw 3 is rotatably connected to the frame body 9 of the load-bearing drive mechanism 2. The motor 14 drives the lead screw 3 to rotate. The nut assembly 4 converts the rotation of the lead screw 3 into translation through the lead screw and nut pair. The long guide column 7 is used for door system support, and the upper slide rail 8 is used for door system movement guidance. The slide cylinder assembly 10 is rotatably connected to the long guide column 7. The hinge seat 16 is fixedly connected to the slide cylinder assembly 10. The transmission frame 5 connects the hinge seat 16 and the nut assembly 4 to transmit power. During its movement, it passes through the dead point, thereby locking the load-bearing drive mechanism 2 of the urban rail dead point locking plug door system. The closed position switch assembly 4 and the locked position switch assembly 6 are used to provide the door controller with electrical signals indicating the closed and locked states of the door system.

[0079] The latch 11 is fixedly connected to the slide cylinder assembly 10 or the hinge seat 16, and cooperates with the locking hook 103 on the remote isolation device 1 to form a mechanical isolation lock on the load-bearing drive mechanism 2.

[0080] In the safety interlock circuit, a remote disconnect switch 108 and a toggle switch 107 are added in series between one end of the safety circuit 123 and the other end of the safety circuit 124.

[0081] The isolation process is as follows:

[0082] Electric remote isolation: When a door malfunctions, the door system initiates a remote isolation operation. First, electromagnet 112 engages, driving linkage 113 and pawl shaft 105 to rotate. Pawl 106, fixedly connected to pawl shaft 105, rotates synchronously, disengaging from the locking hook 103. Lock hook 103 and lever 104, driven by lock hook spring 109 and lever torsion spring 110, rotate synchronously around lock hook shaft 102 to a certain defined state. After a delay following the engagement of electromagnet 112, motor 14 is driven to rotate, performing a door closing operation. Lock latch 11 moves inward along latch movement path 13 (depending on upper slide rail 8), and lever 104 and lock hook 103 follow suit, gradually creating a phase difference between them. The phase difference between the lever 104 and the locking hook 103 gradually increases until the groove formed by the locking hook sidewall 116 and the lever sidewall 117 can accommodate the remote disconnect switch roller 120 falling in. The remote disconnect switch 108 is then released, and simultaneously, the locking hook 103 forms a Y-direction constraint on the latch 11. Additionally, the lever switch 107 is released under the action of the lever sidewall 118. At this point, the safety interlock circuit where the lever switch 107 and the remote disconnect switch 108 are connected in series is closed, the isolation indicator light (not shown) illuminates, and the train departs. If either the remote disconnect switch 108 or the lever switch 117 fails to release, the safety interlock circuit cannot be bypassed, and manual isolation is required.

[0083] Manual Reset: To reset the remote isolation device 1, open the top cover of the mechanism; the electromagnet 112 will be de-energized. Manually operate the manual reset handle 114, turning the locking hook 103 and the toggle plate 104 clockwise (towards...). Figure 3 (Example direction opposite) Turn back to a certain position, pawl 106 enters hook 103 under the action of pawl torsion spring, and toggle switch 107 and remote isolation switch 108 are triggered, then the reset operation is completed.

[0084] Based on the remote isolation system of the present invention, the present invention also discloses a remote isolation method, such as... Figure 10 As shown, the method includes: in response to a remote isolation failure, sending a first control signal, the first control signal being used to control the locking device to release the locking of the locking hook 103 and the lever 104.

[0085] In this step, a first signal can be sent to electromagnet 112. The output of electromagnet 112 retracts, thus releasing the lock on hook 103 and lever 104. Figure 4 and Figure 5 As shown.

[0086] After a preset time has elapsed since the first control signal was sent, a second control signal is sent. The second control signal is used to control the system to perform the door closing action.

[0087] The preset time in this step can be set to 0.5-2s. After a control signal is sent for 0.5-2s, the locking state of the hook 103 and the lever 104 can be released. At this time, sending the second control signal to execute the door closing action can prevent the isolation device from failing to function or the hook 103 or lever 104 on the isolation device from being damaged due to misoperation.

[0088] Within a preset time after the door closing action is performed, it is determined whether the toggle switch 107 and the remote isolation switch 108 have been released. If both the toggle switch 107 and the remote isolation switch 108 are released, the safety interlock circuit is connected.

[0089] The preset time in this step is set according to the time required for the door to close.

[0090] In response to the safety interlock circuit being connected, a successful isolation signal is sent.

[0091] In this step, if the safety interlock circuit is connected, it indicates successful isolation. At this time, the toggle switch 107 and the remote disconnect switch 108 must be in the released state. If the safety interlock circuit is not connected, the released state of the toggle switch 107 and the remote disconnect switch 108 can be used to determine whether the isolation device or other parts of the safety interlock circuit are faulty.

[0092] like Figure 10 As shown, the isolation method also includes determining whether the isolation is successful by the position of the remote isolation switch 108, the toggle switch 107 and the motor 14. If both the toggle switch 107 and the remote isolation switch 108 are released, and the position sensor of the motor 14 determines that it is within the specified range of the closed door, then the remote isolation is successful.

[0093] In summary, the isolation device, remote isolation system, and remote isolation method provided by this invention have the following advantages:

[0094] During isolation, the lock hook and the lever create a phase difference as they follow the movement of the latch. When the mechanical door is locked in place, the lock hook forms a Y-axis constraint on the latch, and the phase difference between the lock hook and the lever allows the remote isolation switch roller to fall in, thus releasing the remote isolation switch and reducing the risk of "false isolation".

[0095] The remote isolation device is equipped with dual switches. The remote isolation switch and the toggle switch are used infrequently and have high reliability. The dual switches are connected in series to the safety interlock circuit, rather than a single remote isolation switch. This avoids the problem of the interlock circuit closing incorrectly due to the remote isolation switch constantly giving a false isolation signal, thereby reducing the safety risks caused by starting the train without isolation or without closing the doors.

[0096] The remote isolation device itself is equipped with two switches, connected in series to the interlock circuit and in parallel to the door control system. When the door control system determines whether the door is fully closed during remote isolation, it uses the remote isolation switch signal from the remote isolation device (or checks whether the remote isolation switch and the toggle switch are released simultaneously). Furthermore, no lock-in switch (or close-in switch) is connected in series in the safety interlock circuit. Therefore, this device can isolate the more frequent fault of "the lock / close-in switch assembly failing to trigger," significantly improving the applicability of the remote isolation device and preventing train delays or even passenger evacuations caused by problems with the lock / close-in switches.

[0097] The force distribution of the electromagnet has been optimized, so that the electromagnet is subjected to axial force as much as possible, resulting in a good force distribution state. Moreover, the remote isolation device has a compact structure and regular layout, which can adapt to the narrower central space of the door system of the dead-point locking plug door system.

[0098] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. An isolation device, characterized in that, The system includes a remote isolation mechanism (1), which includes a base plate (101), a toggle switch (107) mounted on the base plate (101), a remote isolation switch (108), a lock hook shaft (102), and a locking device. The lock hook (103) and the toggle switch (104) are rotatably connected to the lock hook shaft (102) via elastic elements. The locking device is used to lock the lock hook (103) and the toggle switch (104) in the locked position. After the lock hook (103) and the toggle switch (104) are unlocked, the lock hook (103) and the toggle switch (104) can be pushed to the isolation position by a driving element. In the locked position, the toggle switch (107) and the remote disconnect switch (108) are restricted from release; in the disconnected position, the hook portion of the lock hook (103) can constrain the Y-direction position of the drive member, the toggle switch (104) releases the toggle switch (107), and a phase difference space is formed between the lock hook (103) and the toggle switch (104) to allow the remote disconnect switch (108) to be released; the lock hook (103) is provided with a first lock hook sidewall (116), the toggle switch (104) is provided with a second toggle sidewall (117) and a first toggle sidewall (118), and the phase difference space is formed between the first lock hook sidewall (116) and the second toggle sidewall (117); In the locked position, the first locking hook sidewall (116) and / or the second toggle sidewall (117) contact the remote disconnect switch roller (120) on the remote disconnect switch (108) to restrict the release of the remote disconnect switch (108); the first toggle sidewall (118) contacts the toggle switch roller (119) of the toggle switch (107) to restrict the release of the toggle switch (107); in the disconnected position, the phase difference space reaches a set value, the remote disconnect switch roller (120) falls into the phase difference space formed by the first locking hook sidewall (116) and the second toggle sidewall (117), and the remote disconnect switch (108) is released; from the locked position to the disconnected position, the toggle switch roller (119) is pushed by the first toggle sidewall (118) at a certain angle so that the toggle switch (107) is released.

2. The isolation device according to claim 1, characterized in that, The locking hook (103) and the lever (104) also have an intermediate position; in the intermediate position, the first sidewall of the locking hook (116) and / or the second sidewall of the lever (117) are in contact with the remote disconnect switch roller (120) on the remote disconnect switch (108), and the phase difference space formed between the first sidewall of the locking hook (116) and the second sidewall of the lever (117) is less than a set value to restrict the release of the remote disconnect switch (108).

3. The isolation device according to claim 1, characterized in that, The locking device includes a pawl (106), which is fixed on a pawl shaft (102), and the pawl shaft (102) is rotatably connected to the base plate (101). The base plate (101) is provided with a driving member, and the output end of the driving member is connected to the pawl shaft (102) through a connecting rod (113). In the locked position, the pawl (106) engages the locking hook (103), and the elastic member is compressed.

4. The isolation device according to claim 1, characterized in that, The elastic element includes a hook spring (109) and a torsion spring (110); the two ends of the hook spring (101) are respectively connected to the hook (103) and the base plate (101); one end of the torsion spring (110) is connected to the torsion plate (104), and the other end is connected to the base plate (101) or the hook (103).

5. The isolation device according to claim 1, characterized in that, The locking hook (103) is provided with a limiting pin (121), which is located on the side of the dial (104) away from the dial switch (107).

6. A remote isolation system, characterized in that, Includes a safety interlock circuit and the isolation device as described in any one of claims 1-5; the toggle switch (107) and the remote isolation switch (108) are connected in series between one end (123) and the other end (124) of the safety circuit of the safety interlock circuit, and the safety interlock circuit is turned on when the toggle switch (107) and the remote isolation switch (108) are released.

7. The remote isolation system according to claim 6, characterized in that, It also includes a load-bearing drive mechanism (2), which includes a central support (101), a latch (11) and a motor (14); the base plate (101) is connected to the central support (101), and the motor (14) is started to realize the door closing action. The latch (11) is used to drive the lock hook (103) and the lever (104) to move and be hooked by the lock hook to form a Y-direction constraint when the door is closed.

8. A remote isolation method, implemented based on the remote isolation system according to any one of claims 6-7, the method comprising: In response to a remote isolation fault, a first control signal is sent, which is used to control the locking device to release the lock hook (103) and the lever (104); after a preset time after the first control signal is sent, a second control signal is sent, which is used to control the system to perform a door closing action; within a preset time after the door closing action is performed, it is determined whether the lever switch (107) and the remote isolation switch (108) are released, whether the remote isolation is successful, and whether the isolation indicator light is lit; in response to the release of the lever switch (107) and the remote isolation switch (108), the safety interlock circuit is connected, and the vehicle departs.

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