A middle restraint device and a sliding plug door system

Abstract

The application discloses a restraint device and a plug door system in the field of rail transit vehicle door systems, and the restraint device comprises a fixed mounting seat, a middle rotating arm and a lock hook; a power rod is rotationally arranged on the mounting seat; the middle rotating arm is fixedly connected with the power rod; the lock hook is rotationally arranged on the mounting seat, and the middle rotating arm rotationally contacts the lock hook; wherein the middle rotating arm and the lock hook are configured to rotate the lock hook to couple the door leaf, in use, the power rod is rotated to drive the middle rotating arm to extrude and contact the lock hook, the lock hook is moved to couple the door leaf, the middle part of the door leaf is locked, the dynamic sealing performance of the middle part of the door leaf is improved, the power rod is drivingly connected with a movable cross beam in the door system in actual installation, the movable cross beam drives the power rod to rotate power when the door leaf is subjected to plug door movement, the middle restraint device operates, and external power supply is avoided and energy consumption is reduced.

Description

Technical Field

[0001] This application relates to the field of rail transit vehicle door system technology, specifically to a central restraint device and a sliding door system. Background Technology

[0002] With the increase in operating speed of urban rail and intercity trains, the increase in train formation length, and the reduction in tunnel cross-section, the air pressure fluctuation inside the carriages has increased significantly, placing higher demands on the sealing performance of the door system. The sealing performance of sliding doors is closely related to the door leaf constraint stiffness, and reliable constraints should be installed at the front and sides (rear) of the door leaf.

[0003] In existing technologies, the side of a sliding door is generally constrained by two points (upper and lower) or three points (upper, lower, and middle).

[0004] When the side of the door is constrained only at the top and bottom, the door itself has limited rigidity, and the middle of the rear section of the door is prone to deformation under aerodynamic load, which affects the sealing and reduces passenger comfort.

[0005] When the door leaf is constrained by three points—upper, lower, and middle—the middle section typically employs an auxiliary lock or a fixed central locking hook structure. With a fixed central locking hook, the gap between the hook and the door leaf in the Y-direction (vehicle width direction) is relatively large, resulting in poor dynamic sealing performance under pneumatic loads. While auxiliary locks offer better dynamic sealing, they generally require additional power, leading to additional energy loss in the vehicle. Furthermore, they occupy more space and are heavier, making them difficult to widely adopt in general urban rail and intercity vehicles.

[0006] When restraining the middle part of the side of the sliding door, the use of existing locks results in a technical problem of poor sealing. Utility Model Content

[0007] The purpose of this application is to provide a central restraint device and a sliding door system to solve the defect of poor sealing performance of the central lock structure on the side of the sliding door in the prior art.

[0008] To achieve the above objectives, this application employs the following technical solution:

[0009] Firstly, this application discloses a central restraint device, which includes...

[0010] A fixed mounting base, on which a power rod is rotatably mounted;

[0011] A central rotating arm, which is fixedly connected to the power rod;

[0012] A locking hook is rotatably mounted on the mounting base, and the central rotating arm is mechanically coupled to the locking hook.

[0013] The central rotating arm and the locking hook are configured such that the central rotating arm rotates, causing the locking hook to rotate and couple with the door leaf.

[0014] In a further embodiment of this application, a driving component is provided on the central rotating arm, and a movable groove is provided on the locking hook. The driving component is placed in the movable groove, and the driving component moves to contact the groove arm of the movable groove, causing the locking hook to rotate.

[0015] In a further embodiment, the movable slot includes a first slot and a second slot, which are connected. The area of ​​the first slot covers the path of the driving component moving within the first slot, while the area of ​​the second slot does not cover the path of the driving component moving within the second slot.

[0016] In a further embodiment, the groove is an arc-shaped groove, and the arc diameter of the arc-shaped groove is equal to the motion arc of the driving component.

[0017] In a further embodiment, the lock hook is provided with a hook-shaped part, the driving member moves to the end of the two-section groove, the hook-shaped part is coupled to the door leaf, and the force exerted by the hook-shaped part on the door leaf is directed towards the rotation center of the lock hook.

[0018] In a further embodiment of this application, the axis of the power rod is fixedly positioned.

[0019] Secondly, this application also discloses a sliding door system, which includes the aforementioned restraint device and an upper rotating arm assembly. One end of the upper rotating arm assembly is rotatably connected to a crossbeam, and the other end is fixedly connected to the power rod. The upper rotating arm assembly is configured such that the crossbeam moves, causing the power rod to rotate about its axis.

[0020] In a further embodiment of this application, the upper rotating arm assembly includes a connecting rod and an upper rotating arm. One end of the connecting rod is rotatably connected to the upper rotating arm, and the other end is rotatably connected to a crossbeam. The upper rotating arm is fixedly connected to the power rod.

[0021] The beneficial effects of this application are as follows:

[0022] This application designs a central rotating arm and a locking hook. The central rotating arm is fixed to a rotatable power rod. During use, the rotation of the power rod drives the central rotating arm to press against the locking hook, thereby rotating the locking hook to couple the door leaf and lock the middle of the door leaf, thus improving the dynamic sealing performance of the middle of the door leaf rear section. In actual installation, the power rod is connected to the movable crossbeam in the door system. When the door leaf moves in a sliding motion, the movable crossbeam serves as the power source for the rotation of the power rod, enabling the operation of the central restraint device, thus avoiding the need for an external power source and reducing energy consumption.

[0023] The movable groove on the lock hook is divided into a first groove and a second groove that are connected. The second groove is in contact with the middle rotating arm. When the door leaf slides into the tail section, the lock hook locks, ensuring the consistency and coordination of the door leaf closing and locking. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the side restraint system of the urban rail door system in the embodiments of this application;

[0025] Figure 2 This is a schematic diagram of the upper rotating arm assembly in an embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the central restraint device structure in an embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the initial state of the central rotating arm in an embodiment of this application;

[0028] Figure 5 This is a schematic diagram of the pre-locking motion state of the locking hook in an embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the state after the door leaf is locked by the lock hook in an embodiment of this application.

[0030] in:

[0031] 1. Central restraint device; 2. Upper swing arm assembly; 3. Swing arm assembly; 4. Door leaf; 5. Crossbeam; 6. Fork-shaped component;

[0032] 201. Upper swing arm; 202. Connecting rod; 101. Mounting base; 102. Middle swing arm; 103. Locking hook; 104. Power rod; 102-1. Drive component; 103-1. Movable groove; 100. First-stage groove; 200. Second-stage groove; 103-2. Hook-shaped part; O1. Shaft; O2. Rotating shaft. Detailed Implementation

[0033] 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.

[0034] like Figure 3As shown, this application discloses an embodiment of a central restraint device, which includes a fixedly mounted mounting base 101, a central rotating arm 102, and a locking hook 103; a power rod 104 is rotatably mounted on the mounting base 101, and the axis of the power rod 104 is fixedly positioned; the central rotating arm 102 is fixedly connected to the power rod 104; the locking hook 103 is rotatably mounted on the mounting base 101, and the rotation of the central rotating arm 102 drives the locking hook 103 to rotate.

[0035] The central rotating arm 102 and the locking hook 103 are configured such that the central rotating arm 102 rotates, causing the locking hook 103 to rotate and couple with the door leaf 4.

[0036] When using it, it is worth noting that the power rod 104 rotates in conjunction with the attached... Figure 2 The power source for the rotation of the power rod 104 here comes from the displacement energy of the crossbeam 5 in the vehicle width direction during the sliding action of the door leaf 4, avoiding the need for additional power sources. That is, the rotation of the power rod 104 is completed by measuring the displacement in the Y direction. At the same time, the power rod 104 drives the central rotating arm 102 to rotate and contact the pressing hook 103 to move until the hook 103 completes the constraint and locking of the door leaf 4.

[0037] In some embodiments, the specific design of a central restraint device 1 is as follows:

[0038] As attached Figures 4 to 6 As shown, in this embodiment, a driving member 102-1 is provided on the central rotating arm 102, and a movable groove 103-1 is provided on the locking hook 103. The driving member 102-1 is placed in the movable groove 103-1, and the driving member 102-1 moves to contact the groove arm of the movable groove 103-1, causing the locking hook 103 to rotate. This embodiment is applied to a train door. During the opening and closing process, the door leaf 4 undergoes a sliding motion. To ensure that the locking action of the locking hook 103 is completed simultaneously with the closing of the door leaf 4 at the end of the sliding motion, i.e., when the door leaf 4 closes, the following is provided: Figure 4 As shown, in this embodiment, the movable slot 103-1 is provided with a first slot 100 and a second slot 200. The first slot 100 and the second slot 200 are connected. The first slot 100 is the AB segment in the movable slot 103-1, and the second slot 200 is the BC segment in the movable slot 103-1.

[0039] A section of groove 100 covers the path of the drive component 102-1 moving within the section of groove 100. Specifically, the section of groove 100 is an arc-shaped groove, and the arc diameter of the arc-shaped groove is equal to the arc-shaped trajectory of the drive component 102-1. That is, when the drive component 102-1 moves within the section of groove 100, the locking hook 103 does not rotate.

[0040] The area of ​​the second-stage groove 200 does not cover the path of the drive component 102-1 moving within the second-stage groove 200. That is, when the drive component 102-1 moves within the second-stage groove 200, the locking hook 103 rotates to achieve the unlocking or locking action.

[0041] It should be mentioned here that the lock hook 103 is provided with a hook-shaped part. When the drive member 102-1 moves to the end of the two-section groove 200, that is, at point C of the movable groove 103-1, the hook-shaped part is coupled and contacted with the door leaf 4, and the force exerted by the hook-shaped part on the door leaf 4 is directed towards the rotation arc center of the lock hook 103.

[0042] The central rotating arm 102 can rotate with the power rod 104 and drive the locking hook 103 to rotate. When the locking hook is in place, it can lock the door leaf 4 and the Y-direction gap between it and the door leaf 4 is small, thereby forming a reliable constraint on the middle of the rear section of the door system to improve the dynamic sealing performance of the middle of the rear section of the door leaf 4.

[0043] Compared to the central auxiliary lock, the central restraint device 1 here is directly driven by the power rod 104, which eliminates the need for an additional power source, reduces the energy consumption of the entire vehicle, and has a simpler structure, occupies less space, and is lighter.

[0044] As attached Figure 1 and Figure 2 As shown, this application also provides an embodiment of a sliding door system, which includes the constraint device and upper swing arm assembly 2 of the above embodiment. One end of the upper swing arm assembly 2 is rotatably connected to the crossbeam 5, and the other end is fixedly connected to the power rod 104. The upper swing arm assembly 2 is configured such that the crossbeam 5 moves, causing the power rod 104 to rotate around its axis O1. Typically, the upper swing arm assembly 2 includes a connecting rod 202 and an upper swing arm 201. One end of the connecting rod 202 is rotatably connected to the upper swing arm 201, and the other end is rotatably connected to the crossbeam 5. The upper swing arm 201 is fixedly connected to the power rod 104. It also includes a bottom swing arm assembly 3, wherein the swing arm assembly 3 reliably constrains the vehicle width (Y direction) and vehicle length (X direction) below the side of the door system. For details, please refer to patent CN118008075A.

[0045] The following section provides a detailed explanation of the use of the central restraint device in conjunction with a door system:

[0046] (1) Closing process:

[0047] After the door closes and enters the Serra section, the crossbeam 5 moves in the Y direction (a conventional technique in train door systems, omitted here), causing the upper swing arm 201 and the power rod 104 to rotate. The power rod 104 then causes the middle swing arm 102 in the middle restraint device 1 to move clockwise around the axis O1. Figure 6 (As shown).

[0048] When the drive component 102-1 moves from point A to point B in the movable slot 103-1, the locking hook 103 begins to rotate clockwise around the pivot O2. When the door leaf 4 is pulled into place, the drive component 102-1 moves to point C, and the hook-shaped part 103-2 of the locking hook 103 couples with the door leaf 4 to form a certain overlap, and the direction of their interaction force points towards the pivot O2, forming a reliable Y-direction constraint on the middle of the rear section of the door leaf 4.

[0049] Meanwhile, when the door system is pulled into place, the end of the crossbeam 5 is constrained by the fork-shaped part 6 rotatably connected to the vehicle body, and the upper swing arm 201 exerts a force on the door leaf 4 in the direction of the crossbeam 5, thereby forming a Y-direction constraint on the upper part of the rear door leaf 4; the swing arm assembly 3 reliably constrains the lower side of the door system in the X and Y directions.

[0050] (2) Door opening process

[0051] When the door opens, the crossbeam 5 moves in the opposite direction of the Y-axis, causing the upper rotating arm 201 and the power rod 104 to rotate in the opposite direction. The power rod 104 then causes the middle rotating arm 102 in the middle restraint device 1 to move counterclockwise. Figure 5 (The directions shown are opposite). When the drive component 102-1 of the middle rotating arm 102 moves from point C to point A of the movable slot 103-1, the locking hook 103 rotates counterclockwise, the door leaf 4 separates from the locking hook 103, and at the same time, the upper rotating arm 201 and the swing arm assembly 3 separate from the upper and lower sides of the door system, and the side of the door system loses its constraint.

[0052] When the door system leaves the septa section, the crossbeam 5 stops moving, the power rod 104 stops rotating, and the upper swing arm 201, the middle swing arm 102, the lock hook 103, and the swing arm assembly 3 stop rotating. The middle swing arm 102 restricts the free rotation of the lock hook 103.

[0053] 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.

[0054] 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. A restraint device, characterized in that, include A fixed mounting base, on which a power rod is rotatably mounted; A central rotating arm, which is fixedly connected to the power rod; A locking hook is rotatably mounted on the mounting base, and the central rotating arm is mechanically coupled to the locking hook. The central rotating arm and the locking hook are configured such that the central rotating arm rotates, causing the locking hook to rotate and couple with the door leaf.

2. The restraint device according to claim 1, characterized in that, The central rotating arm is provided with a driving component, and the lock hook is provided with a movable groove. The driving component is placed in the movable groove, and the driving component moves to contact the movable groove arm, causing the lock hook to rotate.

3. The restraint device according to claim 2, characterized in that, The movable slot includes a first slot and a second slot, which are connected. The area of ​​the first slot covers the path of the driving component moving within the first slot, while the area of ​​the second slot does not cover the path of the driving component moving within the second slot.

4. The restraint device according to claim 3, characterized in that, The groove is an arc-shaped groove, and the arc diameter of the arc-shaped groove is equal to the motion arc of the driving component.

5. The restraint device according to claim 3, characterized in that, The lock hook is provided with a hook-shaped part. The driving member moves to the end of the two-section groove. The hook-shaped part is coupled and contacts the door leaf, and the force exerted by the hook-shaped part on the door leaf is directed towards the rotation center of the lock hook.

6. The restraint device according to claim 1, characterized in that, The axis of the power rod is fixedly positioned.

7. A sliding door system, characterized in that, The device includes the constraint device and upper rotating arm assembly as described in any one of claims 1 to 6, wherein one end of the upper rotating arm assembly is rotatably connected to the crossbeam and the other end is fixedly connected to the power rod, and the upper rotating arm assembly is configured such that the crossbeam moves, causing the power rod to rotate about its axis.

8. The sliding door system according to claim 7, characterized in that, The upper rotating arm assembly includes a connecting rod and an upper rotating arm. One end of the connecting rod is rotatably connected to the upper rotating arm, and the other end is rotatably connected to the crossbeam. The upper rotating arm is fixedly connected to the power rod.

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