A kind of unlocking device

Abstract

The application discloses a kind of unlocking device of urban rail transit vehicle door system, it includes rotationally arranged left unlocking unit and right unlocking unit, operating assembly;Reset member is provided between left unlocking unit and right unlocking unit;Operating assembly side connects left unlocking unit and right unlocking unit;Wherein, left unlocking unit and right unlocking unit rotate around same rotation axis, operating assembly drives left unlocking unit and right unlocking unit to rotate towards each other;When using, left unlocking unit, right unlocking unit is rotated towards each other by the pulling of operating assembly, change the disadvantage that linear motion needs large space in prior art, when actually using, the nut assembly of rotating left unlocking unit, right unlocking unit two sides rotates towards each other, makes transmission frame overturn control door system open, in addition, when operating assembly loses power, under the action of reset member, two unlocking units are reset, facilitate next operation.

Description

Technical Field

[0001] This application relates to the field of door systems for urban rail transit vehicles, and specifically to an unlocking device. Background Technology

[0002] Unlocking devices are crucial safety components in rail transit vehicle operation. In emergencies, they can be activated to open the vehicle doors, allowing passengers to escape. Currently, existing unlocking devices for rail transit vehicle doors have the following shortcomings: they are mostly located at the ends of the door system, outside the entrance area, making maintenance inconvenient; some unlocking devices located in the middle of the load-bearing drive mechanism, such as the plug door unlocking structure mentioned in patent CN215291949U, occupy a large vertical space, resulting in poor spatial compatibility. When the nut assemblies on both sides are asymmetrical, the unlocking components cannot be evenly loaded, resulting in high unlocking resistance; existing technologies design the unlocking plate to move linearly up and down, requiring a large longitudinal movement space, leading to poor spatial compatibility. Utility Model Content

[0003] The purpose of this application is to provide an unlocking device to solve the problem of poor spatial compatibility of unlocking devices in the prior art.

[0004] To achieve the above objectives, this application employs the following technical solution: This application discloses an unlocking device, which includes The mounting bracket is provided with a first limiting part and a second limiting part; A left unlocking unit and a right unlocking unit are provided, both of which are rotatably mounted on a mounting bracket, and a reset component is provided between the left unlocking unit and the right unlocking unit; An operating component, wherein the operating component is connected to the left unlocking unit and the right unlocking unit; The left and right unlocking units rotate around the rotation center, and the operating component drives the left and right unlocking units to rotate towards each other and contact the first limiting part; the left and right unlocking units then reset and contact the second limiting part.

[0005] In a further embodiment of this application, the mounting bracket is provided with a central shaft, and the left unlocking unit and the right unlocking unit are rotatably mounted on the central shaft.

[0006] In a further embodiment, the left unlocking unit and the right unlocking unit are symmetrically rotated and mounted at both ends of the central axis.

[0007] In a further embodiment of this application, the left unlocking unit and the right unlocking unit are respectively provided with a left lever and a right lever on opposite sides.

[0008] In a further embodiment, the left lever is detachably mounted on the left unlocking unit; the right lever is detachably mounted on the right unlocking unit.

[0009] In a further embodiment of this application, the reset element is a reset spring.

[0010] A further embodiment of this application also includes an unlocking switch, wherein a trigger plate is fixed on the left unlocking unit and / or the right unlocking unit, and the trigger plate rotates to contact and press the unlocking switch.

[0011] In a further embodiment of this application, the operating component includes two operating parts arranged in parallel, wherein the first and second operating parts move through the right unlocking unit and are fixedly connected to the left unlocking unit.

[0012] The beneficial effects of this application are as follows: This application designs two rotating unlocking units. In use, the left and right unlocking units are rotated in opposite directions by pulling the operating components. This overcomes the drawback of the existing technology that requires a large space for longitudinal movement. In actual use, the nut assemblies on both sides of the rotating left and right unlocking units rotate in opposite directions, causing the transmission frame to flip and control the door system to open. In addition, when the operating components lose force, the two unlocking units are reset by the reset component, which facilitates the next operation. The left and right unlocking units can move sequentially during actual use, making contact with the corresponding nuts to unlock the device. Each unlocking unit can independently accept the load, reducing unlocking resistance. In addition, a trigger plate and an unlocking switch have been added to the device. When in use, the left or right unlocking unit is rotated to complete the unlocking process, which triggers the unlocking switch to provide an unlocking signal to the door control system and remind the driver. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the unlocking device after installation in an embodiment of this application; Figure 2 This is a schematic diagram of the unlocking device in an embodiment of this application; Figure 3 This is a schematic diagram of the unlocking process of the unlocking device in an embodiment of this application; Figure 4 This is a schematic diagram of the nut assembly during the unlocking process of the unlocking device in the embodiments of this application; Figure 5 This is a schematic diagram of the unlocking device after unlocking in an embodiment of this application. Figure 6 This is a schematic diagram of the nut assembly after the unlocking process of the unlocking device in the embodiments of this application.

[0014] in: 1. Unlocking device; 2. Mechanism frame; 3. Right nut assembly; 4. Lead screw; 5. Left nut assembly; 101. Left unlocking unit; 102. Right unlocking unit; 103. Mounting bracket; 104. Operating component one; 105. Operating component two; 106. Trigger plate; 107. Unlocking switch; 108. Central shaft; 109. Left lever; 110. Right lever; 111. Rotating shaft one; 112. Rotating shaft two; 113. Reset component; 114a. Left protrusion; 114b. Right protrusion; 103a. Second limiting part; 103b. First limiting part. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use.

[0016] like Figure 1 and Figure 2 As shown, this application discloses an embodiment of an unlocking device, which includes a left unlocking unit 101 and a right unlocking unit 102 rotatably disposed therebetween, and an operating component; a reset member 113 is provided between the left unlocking unit 101 and the right unlocking unit 102; one side of the operating component is connected to the left unlocking unit 101 and the right unlocking unit 102; wherein, the left unlocking unit 101 and the right unlocking unit 102 rotate around the same rotation axis, and the operating component drives the left unlocking unit 101 and the right unlocking unit 102 to rotate toward each other.

[0017] In use, the operating component is connected to the door system operating device (existing technology, structural description omitted here). The operating device drives the operating component to rotate the left unlocking unit 101 and the right unlocking unit 102, thereby driving the left nut assembly 5 and the right nut assembly 3 and unlocking the door system.

[0018] The unlocking device 1 will be explained in detail below with reference to the structure of the door system: As attached Figure 2The unlocking device 1 in this embodiment further includes a mounting bracket 103, which is fixed on the mechanism frame 2. A central shaft 108 is mounted on the mounting bracket 103. Normally, the central shaft 108 is fixed on the mounting base of the mounting bracket 103, at which time the left unlocking unit 101 and the right unlocking unit 102 are rotatably mounted on the central shaft 108. It is worth noting that when installing the unlocking units, the left unlocking unit 101 and the right unlocking unit 102 are symmetrically rotated at both ends of the central shaft 108. Furthermore, both unlocking units can rotate freely within the unlocking range. The reset element 113 is a reset spring, which is sleeved on the central shaft 108, and the two sides of the reset spring (torsion spring) correspondingly contact the surfaces of the left unlocking unit 101 and the right unlocking unit 102. (See attached diagram.) Figure 1 The mounting bracket 103 here is equipped with a first limiting part 103b and a second limiting part 103a at different heights. When unlocking, the operating component is pulled to make the left unlocking unit 101 and the right unlocking unit 102 rotate towards each other and are finally limited by the first limiting part 103b. After unlocking, the left unlocking unit 101 and the right unlocking unit 102 are reset by the reset component and move in the opposite direction, and are finally limited by the second limiting part 103a.

[0019] To facilitate the unlocking unit's contact with the nut assembly in the door system, left lever 109 and right lever 110 are respectively provided on opposite sides of the left unlocking unit 101 and right unlocking unit 102, ensuring that the left lever 109 and right lever 110 can contact the corresponding nut assembly when rotated. Here, the left lever 109 is detachably installed on the left unlocking unit 101; the right lever 110 is set in the same way. In a general design, taking the left unlocking unit 101 as an example, a mounting hole is provided on the left unlocking unit 101, and the left lever 109 is interference-fitted into the mounting hole.

[0020] A trigger plate 106 is fixed on the left unlocking unit 101, and a pressure unlocking switch 107 is fixed on the mechanism frame 2 on one side of the left unlocking unit 101. Rotation of the left unlocking unit 101 causes the trigger plate 106 to rotate and contact the pressure unlocking switch 107, which then sends an unlocking signal to the door system. The operating components include two parallel operating parts: a first operating part 104 and a second operating part 105. The first and second operating parts 104 and 105 movably pass through the right unlocking unit 102 and are fixedly connected to the left unlocking unit 101. A rotating shaft 111 is rotatably connected to the left unlocking unit 101, and similarly, a rotating shaft 112 is rotatably connected to the right unlocking unit 102. The first and second operating parts 104 and 105 have the same structure, consisting of a steel wire rope and conduit, similar to a bicycle brake cable. The steel wire rope passes through the second rotating shaft 112 and is fixed to the first rotating shaft 111. Pulling the steel wire rope enables the rotation of each unlocking unit.

[0021] Combined with appendix Figures 3 to 6 The usage process of the device will be explained in detail. (1) Unlocking: The door system operating device pulls the operating part 104 or the operating part 2 105, so that the left unlocking unit 101 and the right unlocking unit 102 move clockwise and counterclockwise respectively, and the left lever 109 and the right lever 110 are raised. As a result, the left nut assembly 3 and the right nut assembly 5 rotate around the lead screw 4, and the transmission frame 8 (the left rotating frame is not shown) is flipped. After the door system operating device is operated in place, the left lever 109 and the right lever 110 are raised by δ=D2-D1, the load-bearing drive mechanism is removed from the dead point position, and the door system is unlocked. At the same time, the trigger plate 106 is raised, so that the unlocking switch 107 is compressed and triggered, providing an unlocking signal to the door control system.

[0022] (2) Unlocking and Resetting: When the directional control door system operating device, operating part 104 or operating part 2105 is released, the reset spring 113 will press the raised left lever 109 and right lever 110 back to their initial positions to facilitate subsequent unlocking operations.

[0023] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

Claims

1. An unlocking device, characterized in that, include The mounting bracket is provided with a first limiting part and a second limiting part; A left unlocking unit and a right unlocking unit are provided, both of which are rotatably mounted on a mounting bracket, and a reset component is provided between the left unlocking unit and the right unlocking unit; An operating component, wherein the operating component is connected to the left unlocking unit and the right unlocking unit; The left and right unlocking units rotate around the rotation center, and the operating component drives the left and right unlocking units to rotate towards each other and contact the first limiting part; the left and right unlocking units then reset and rotate to contact the second limiting part.

2. The unlocking device according to claim 1, characterized in that, The mounting bracket is provided with a central shaft, and the left unlocking unit and the right unlocking unit are rotatably mounted on the central shaft.

3. The unlocking device according to claim 2, characterized in that, The left and right unlocking units are symmetrically rotated and mounted at both ends of the central shaft.

4. The unlocking device according to claim 1, characterized in that, The left and right unlocking units are respectively equipped with left levers and right levers on opposite sides.

5. The unlocking device according to claim 4, characterized in that, The left lever is mounted on the left unlocking unit; the right lever is mounted on the right unlocking unit.

6. The unlocking device according to claim 1, characterized in that, The reset component is a reset spring.

7. The unlocking device according to claim 1, characterized in that, It also includes an unlocking switch, and a trigger plate is fixed on the left unlocking unit and / or the right unlocking unit. The trigger plate rotates to contact and press the unlocking switch.

8. The unlocking device according to claim 1, characterized in that, The operating components include two parallel operating parts, namely, operating part one and operating part two, which are movably connected to the left unlocking unit through the right unlocking unit.

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