Remote isolation device for rail transit vehicle door system

Abstract

The utility model relates to the technical field of isolation devices, and particularly discloses a remote isolation device for a rail transit vehicle door system, which comprises a positioning assembly, a mechanical isolation assembly, an electrical isolation assembly, a trigger assembly and an electric control assembly, the remote isolation device is connected with the mechanical isolation assembly and the electrical isolation assembly synchronously, mechanical isolation and electrical isolation are achieved synchronously, remote operation is more convenient, normal running of a vehicle does not need to be delayed, the whole remote isolation device is installed at the tail end of the lead screw, the device is prevented from directly bearing bounce in the isolation process of a door system, the lead screw is prevented from being abraded, and the service life of the device is prolonged. And meanwhile, the device is far away from other parts, and installation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of isolation devices, in particular to a remote isolation device for a rail transit vehicle door system. Background Art

[0002] At present, the vehicle door system is an indispensable and important part of various train vehicles in the field of rail transportation. As an important subsystem in the daily operation of subway vehicles, the vehicle door system is used very frequently, which means that during the long-term operation of subway vehicles, the vehicle door system will inevitably have some abnormal failures. For subway vehicles with extremely stringent safety performance requirements, it is absolutely unacceptable for the vehicle door system to lose control and open during driving. Once an abnormal failure occurs in the vehicle door system, it must be immediately isolated and taken out of service to ensure that the failure of a single vehicle door system will not affect the operation of the entire subway vehicle. This is to avoid safety accidents during train operation. Therefore, an isolation device is usually installed in the vehicle door system, and the isolation device is used to mechanically and electrically lock the door system.

[0003] In the prior art, the isolation device is usually technically designed at the bottom of the door leaf. After rotating the four-corner key 90 degrees, the lock tongue inside the device will extend horizontally a certain distance, locking the lock tongue and triggering the isolation switch on the side of the door column. The triggering of the isolation switch will cause the core EDCU integrated electrical control unit of the vehicle door system to quickly cut off the control of the vehicle door system, thereby isolating the vehicle door system. Once the vehicle door system enters the isolation state, it cannot be opened by manual or electric means. However, it requires professional personnel to carry the four-corner key to the faulty vehicle door system to perform the isolation operation, which will affect the normal operation of subway vehicles and their punctuality during operation. Summary of the Invention

[0004] The present utility model is made in consideration of the above-mentioned problems. The purpose of the utility model is to provide a remote isolation device for a rail transit vehicle door system, which can realize remote control of the vehicle door system and synchronously perform mechanical isolation and electrical isolation. It is easy to operate and is installed as a whole at the end of the screw rod, reducing the occupied space and reducing screw rod wear.

[0005] To achieve the above-mentioned object, the present invention provides a remote isolation device for a rail transit vehicle door system, wherein the door system includes a door body and a screw rod for driving the door body to open or close, and the remote isolation device includes a positioning assembly, a mechanical isolation assembly, a trigger assembly, and an electronic control assembly. The positioning assembly includes a bracket, and the trigger assembly and the electronic control assembly are both fixed to the bracket;

[0006] The mechanical isolation assembly includes a locking disc fixed to the tail end of the screw rod;

[0007] The trigger assembly includes a trigger plate rotatably disposed on the bracket, the trigger plate having a first position and a second position. When the trigger plate is in the second position, the trigger plate can be connected to the locking disk to lock the screw rod;

[0008] The electric control assembly includes an electric control unit, which can abut against one side of the trigger plate to keep the trigger plate in the first position. When the electric control unit is powered, the electric control unit can be separated from the trigger plate.

[0009] According to the above-mentioned remote isolation device for a rail transit vehicle door system, the positioning assembly also includes a support seat, a connecting bearing is provided in the middle of the support seat, the bracket is fixed on the support seat, the tail end of the screw rod is passed through the connecting bearing, and can be rotatably connected to the support seat through the connecting bearing.

[0010] According to the above-mentioned remote isolation device for a rail transit vehicle door system, the trigger assembly also includes a torsion spring, which is connected to the trigger plate and is used to provide an elastic driving force for the trigger plate. When the electronic control unit is disengaged from the trigger plate, the torsion spring can drive the trigger plate to rotate from the first position to the second position.

[0011] According to the above-mentioned remote isolation device for a rail transit vehicle door system, a first locking portion is provided on the trigger plate, and a second locking portion is provided on the locking plate. When the trigger plate is located at the second position, the first locking portion can be connected to the second locking portion.

[0012] According to the above-mentioned remote isolation device for a rail transit vehicle door system, the first locking portion is configured as a positioning protrusion protruding from one side of the trigger plate, a locking plate is provided on the locking disk, and the second locking portion is configured as a positioning recess recessed on one side of the locking plate, and the positioning protrusion can extend into the positioning recess.

[0013] According to the above-mentioned remote isolation device for a rail transit vehicle door system, the trigger assembly also includes an operating handle and a limit rod. The operating handle is fixed to the upper part of the trigger plate and is used to drive the trigger plate to move from the second position to the first position. The limit rod is fixed to the lower part of the trigger plate. When the trigger plate rotates to the second position, the limit rod can abut against the bracket.

[0014] According to the above-mentioned remote isolation device for a rail transit vehicle door system, the electric control unit includes an electromagnet and a metal rod, one end of the metal rod is connected to the electromagnet, and the other end of the metal rod can abut against one side of the trigger plate;

[0015] When the electromagnet is energized, the metal rod contracts and separates from the trigger plate.

[0016] According to the above-mentioned remote isolation device for a rail transit vehicle door system, a limiting protrusion is provided on the end of the metal rod away from the electromagnet, the maximum diameter of the limiting protrusion is smaller than the diameter of the metal rod, and the limiting protrusion can abut against one side of the trigger plate.

[0017] According to the above-mentioned remote isolation device for a rail transit vehicle door system, it also includes an electrical isolation component, which includes a trigger switch. The trigger switch is fixed on the bracket and connected to the control system of the vehicle door system. A trigger member is provided on the trigger plate. When the trigger plate is in the second position, the trigger member can abut against the trigger switch.

[0018] The utility model has the following beneficial effects:

[0019] 1. By energizing the remote control electromagnet, the trigger plate can be released. After the trigger plate rotates to the second position, the trigger plate can contact the locking disk and the trigger switch at the same time. The locking disk mechanically locks the screw rod to achieve mechanical isolation of the door system. At the same time, the trigger switch achieves electrical isolation of the door system, realizing remote control. Its operation does not require on-site operation, which is more convenient.

[0020] 2. The remote isolation device is installed as a whole at the end of the screw rod to prevent the device from directly bearing the rebound force during the door system isolation process and to avoid wear on the screw rod. At the same time, it also keeps the device away from other components for easy installation.

[0021] 3. A protrusion is provided at one end of the metal rod to abut against one side of the trigger plate. After resetting the trigger plate by using the handle, the electromagnet is powered off to make the protrusion abut against one side of the trigger plate. No alignment is required, and resetting is faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 1 is a schematic diagram of the overall structure of the embodiment;

[0023] Figure 2 2 is a schematic diagram of the overall back structure of the embodiment;

[0024] Figure 3 Schematic diagram of the assembly structure of the remote isolation device and the lead screw in the embodiment.

[0025] In the picture:

[0026] 1. Positioning assembly; 11. Bracket; 12. Support seat; 121. Connecting bearing;

[0027] 2. Mechanical isolation assembly; 21. Locking disc; 211. Locking plate; 211a. Positioning recess;

[0028] 3. Trigger assembly; 31. Trigger plate; 311. Positioning protrusion; 32. Torsion spring; 33. Operating handle; 34. Limit rod;

[0029] 4. Electric control assembly; 41. Electromagnet; 42. Metal rod; 421. Limiting protrusion;

[0030] 5. Electrical isolation component; 51. Trigger switch;

[0031] 6. Screw. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0033] like Figure 1-3 As shown, a remote isolation device for a rail transit vehicle door system includes a positioning component 1, a mechanical isolation component 2, an electrical isolation component 5, a trigger component 3 and an electronic control component 4. The electronic control component 4 is used to remotely control the trigger component 3 to perform an action, so as to synchronously connect with the mechanical isolation component 2 and the electrical isolation component 5 to synchronously realize mechanical isolation and electrical isolation, which is more convenient to operate and does not need to delay the normal driving of the vehicle.

[0034] Among them, the vehicle door system includes a door body and a screw rod 6 for driving the door body to open or close. The screw rod 6 is rotated by a motor, and the door body is opened or closed by the rotation of the screw rod 6. When the screw rod 6 is locked, the door body is also mechanically locked and cannot move.

[0035] Specifically, the positioning assembly 1 includes a bracket 11, the trigger assembly 3 and the electronic control assembly 4 are fixed to the bracket 11, the mechanical isolation assembly 2 includes a locking plate 21 fixed to the tail end of the screw rod 6, the trigger assembly 3 includes a trigger plate 31 rotatably arranged on the bracket 11, the trigger plate 31 has a first position and a second position, and the trigger plate 31 can rotate between the first position and the second position. The electronic control assembly 4 includes an electronic control unit, which can abut against one side of the trigger plate 31 to keep the trigger plate 31 in the first position. In this embodiment, the trigger When the plate 31 is in the first position, the trigger plate 31 is separated from the locking plate 21. At this time, the locking plate 21 can rotate with the screw rod 6. When the electronic control unit is energized, the electronic control unit can be separated from the trigger plate 31, releasing the restriction on the trigger plate 31, and the trigger plate 31 can be rotated to the second position. At this time, the trigger plate 31 can be connected with the locking plate 21 to limit the rotation of the locking plate 21, so as to achieve locking of the screw rod 6, thereby achieving mechanical isolation of the door system. Since it only needs to control whether the electronic control unit is energized or not, remote control can be achieved, the operation is relatively convenient, and the normal operation of the vehicle will not be delayed.

[0036] In order to support the isolation device as a whole and the screw rod 6, the positioning assembly 1 also includes a support seat 12, a connecting bearing 121 is provided in the middle of the support seat 12, the bracket 11 is fixed on the support seat 12, the tail end of the screw rod 6 is passed through the connecting bearing 121, and can be rotatably connected to the support seat 12 through the connecting bearing 121. The support seat 12 is used to provide support for the bracket 11, and the connecting bearing 121 is used to provide rotation support for the end of the screw rod 6 to prevent it from breaking due to the isolation device being located at its tail end.

[0037] In order to realize the automatic locking action after the trigger plate 31 is unlocked, the trigger assembly 3 also includes a torsion spring 32, which is connected to the trigger plate 31 and is used to provide an elastic driving force for the trigger plate 31. When the electronic control unit is disengaged from the trigger plate 31, the torsion spring 32 can drive the trigger plate 31 to rotate from the first position to the second position. At this time, the trigger plate 31 is connected to the locking plate 21, locking the locking plate 21, thereby realizing automatic locking of the screw rod 6.

[0038] Specifically, a first locking portion is provided on the trigger plate 31, and a second locking portion is provided on the locking disk 21. When the trigger plate 31 is in the second position, the first locking portion can be connected with the second locking portion. In this embodiment, the first locking portion is configured as a positioning protrusion 311 protruding from one side of the trigger plate 31, and a locking plate 211 is provided on the locking disk 21. The second locking portion is configured as a positioning recess 211a recessed on one side of the locking plate 211. The positioning protrusion 311 can extend into the positioning recess 211a, and the positioning protrusion 311 and the positioning recess 211a are used to cooperate to achieve the positioning of the locking disk 21.

[0039] In order to facilitate resetting and limit the movement distance of the trigger plate 31, the trigger assembly 3 also includes an operating handle 33 and a limit rod 34. The operating handle 33 is fixed to the upper part of the trigger plate 31 and is used to drive the trigger plate 31 to move from the second position to the first position. During the resetting process, the trigger plate 31 can be rotated by the operating handle 33 to move it to the first position. At this time, the electronic control unit is powered off and reset, which plays a role in abutting and limiting the trigger plate 31, so that the trigger plate 31 can be completely reset. At the same time, when the trigger plate 31 rotates to the second position, the limit rod 34 can abut against the bracket 11 to limit the trigger plate 31 from continuing to rotate. Under the action of the torsion spring 32, the trigger plate 31 can be maintained in the second position, keeping the screw rod 6 locked.

[0040] Specifically, the electronic control unit includes an electromagnet 41 and a metal rod 42. One end of the metal rod 42 is connected to the electromagnet 41, and the side of the other end of the metal rod 42 can abut against one side of the trigger plate 31. When the electromagnet 41 is energized, it can drive the metal rod 42 to contract, thereby separating the metal rod 42 from the trigger plate 31. At this time, the restriction on the trigger plate 31 can be released. When the electromagnet 41 is de-energized, the metal rod 42 can be extended and reset. In this embodiment, a limiting protrusion 421 is provided on the end of the metal rod 42 away from the electromagnet 41. The maximum diameter of the limiting protrusion 421 is smaller than the diameter of the metal rod 42, and the limiting protrusion 421 can abut against one side of the trigger plate 31.

[0041] In order to achieve electrical isolation, the electrical isolation component 5 includes a trigger switch 51, which is fixed on the bracket 11 and connected to the control system of the vehicle door system. A trigger member is provided on the trigger plate 31. When the trigger plate 31 is in the second position, the trigger member can abut against the trigger switch 51. When the trigger switch 51 senses a contact signal, it can transmit the signal and achieve electrical isolation through the control system. That is, when the trigger plate 31 moves to the second position, the trigger plate 31 can be connected to the trigger switch 51 and the locking plate 21 at the same time, thereby achieving mechanical isolation and electrical isolation synchronously, with high safety performance.

[0042] The technical solution of the present invention has been described in detail above with reference to the accompanying drawings, and the embodiments described are intended to help understand the concept of the present invention. The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention may make various modifications or additions to the described specific embodiments, or adopt similar methods to replace them, without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0043] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, terms such as "first," "second," and "an" in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0045] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0046] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

Claims

1. A remote isolation device for a rail transit vehicle door system, wherein the door system comprises a door body and a screw rod for driving the door body to open or close, characterized in that: The remote isolation device includes a positioning component, a mechanical isolation component, a trigger component and an electric control component. The positioning component includes a bracket, and the trigger component and the electric control component are both fixed on the bracket; The mechanical isolation assembly includes a locking disc fixed to the tail end of the screw rod; The trigger assembly includes a trigger plate rotatably disposed on the bracket, the trigger plate having a first position and a second position. When the trigger plate is in the second position, the trigger plate can be connected to the locking disk to lock the screw rod; The electric control assembly includes an electric control unit, which can abut against one side of the trigger plate to keep the trigger plate in the first position. When the electric control unit is powered, the electric control unit can be separated from the trigger plate.

2. A remote isolation device for a rail transit vehicle door system according to claim 1, characterized in that: The positioning assembly also includes a support seat, a connecting bearing is provided in the middle of the support seat, the bracket is fixed on the support seat, the tail end of the screw rod is passed through the connecting bearing, and can be rotatably connected to the support seat through the connecting bearing.

3. The remote isolation device for a rail transit vehicle door system according to claim 1, characterized in that: The trigger assembly also includes a torsion spring, which is connected to the trigger plate and is used to provide an elastic driving force for the trigger plate. When the electronic control unit is disengaged from the trigger plate, the torsion spring can drive the trigger plate to rotate from the first position to the second position.

4. A remote isolation device for a rail transit vehicle door system according to claim 1 or 3, characterized in that: The trigger plate is provided with a first locking portion, and the locking plate is provided with a second locking portion. When the trigger plate is located at the second position, the first locking portion can be connected to the second locking portion.

5. The remote isolation device for a rail transit vehicle door system according to claim 4, characterized in that: The first locking portion is configured as a positioning protrusion protruding from one side of the trigger plate, a locking plate is provided on the locking disk, and the second locking portion is configured as a positioning recess recessed on one side of the locking plate, and the positioning protrusion can extend into the positioning recess.

6. The remote isolation device for a rail transit vehicle door system according to claim 1, characterized in that: The trigger assembly also includes an operating handle and a limit rod. The operating handle is fixed to the upper part of the trigger plate and is used to drive the trigger plate to move from the second position to the first position. The limit rod is fixed to the lower part of the trigger plate. When the trigger plate rotates to the second position, the limit rod can abut against the bracket.

7. The remote isolation device for a rail transit vehicle door system according to claim 1, characterized in that: The electronic control unit includes an electromagnet and a metal rod, one end of the metal rod is connected to the electromagnet, and the other end of the metal rod can abut against one side of the trigger plate; When the electromagnet is energized, the metal rod contracts and separates from the trigger plate.

8. The remote isolation device for a rail transit vehicle door system according to claim 7, characterized in that: A limiting protrusion is provided on one end of the metal rod away from the electromagnet, the maximum diameter of the limiting protrusion is smaller than the diameter of the metal rod, and the limiting protrusion can abut against one side of the trigger plate.

9. The remote isolation device for a rail transit vehicle door system according to claim 1, characterized in that: It also includes an electrical isolation component, which includes a trigger switch. The trigger switch is fixed on the bracket and connected to the control system of the vehicle door system. A trigger member is provided on the trigger plate. When the trigger plate is in the second position, the trigger member can abut against the trigger switch.

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