Novel middle unlocking anti-locking stop structure of driving mechanism
By adopting a combined structure of a single anti-lock stop and buffer head in the rail transit vehicle door system, the problems of large space occupied by the existing technology, low material utilization rate and poor maintenance are solved, and safety and low-cost maintenance in the emergency unlocking state are achieved.
Patent Information
- Application Number
- CN202422686244.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-11-05
AI Technical Summary
The anti-locking stop structure of the existing rail transit vehicle door system requires two stops, which occupy a large space, low material utilization, and poor maintenance, making it easy to deform under violent closing.
A single anti-locking stop and buffer head is adopted to prevent the door from closing through the collision between the buffer head and the stop, reduce material use and reduce stiffness requirements, and use the collision buffer of the buffer head to avoid stop deformation.
It realizes that the door will not be locked in an emergency unlocking state, ensuring safety, taking up less space, better maintenance, higher material utilization and lower cost.
Smart Images
Figure CN223293544U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of vehicle door systems, in particular to a novel intermediate unlocking and anti-locking stop structure of a driving mechanism. Background Art
[0002] The anti-lock stop of the intermediate release assembly is a key component in controlling the locking of the door system. It affects the locking function of rail transit vehicle door systems after emergency unlocking. Its main function in the door system is as follows: when the door leaf is in the emergency unlock state (after the emergency unlock switch is operated), the intermediate release assembly rotates, the door is opened in an emergency, and the door can now be opened manually. To prevent the door from closing due to accidental operation, the anti-lock stop limits the movement of the nut assembly in the closing direction, preventing the door from closing and preventing passengers from escaping in an emergency.
[0003] Existing anti-locking stop structures for rail vehicle door systems have the following shortcomings: 1. Two stops are required to lock the door system, with one stop installed on each of the intermediate unlocking device and the nut assembly. Due to space constraints, the stop shapes are rather unusual, requiring significant bending and machining, resulting in low material utilization. 2. The material properties of the anti-locking stop are demanding, and if the door system is violently closed, the stop can easily deform, requiring high rigidity. Furthermore, maintenance is difficult, requiring both stops to be removed and replaced.
[0004] Therefore, it is necessary to develop a new type of intermediate unlocking and anti-locking stop structure for the drive mechanism to improve maintainability, increase material utilization and reduce costs. Utility Model Content
[0005] Purpose of the utility model: In response to the shortcomings and defects of the existing technology, the utility model provides a new intermediate unlocking and anti-locking stop structure of the drive mechanism, which can prevent the door from being locked in the emergency unlocking state, ensure safety, occupy less space, operate more reliably, have better maintainability, higher material utilization rate and lower cost.
[0006] Technical solution: The utility model is a new type of intermediate unlocking anti-locking stop structure of a driving mechanism, which is characterized by: including an intermediate unlocking component, the intermediate unlocking component is installed on the middle bracket, the intermediate unlocking component and the nut component are connected by a screw rod, and the intermediate unlocking component is fixedly provided with an anti-locking stop; the nut assembly is provided with a buffer head.
[0007] Wherein, the intermediate unlocking component is provided with a mounting hole for mounting an anti-locking stop.
[0008] Wherein, the intermediate unlocking assembly is mounted on the middle bracket via bolts.
[0009] Wherein, the nut assembly is provided with a mounting hole for mounting the buffer head.
[0010] Wherein, the screw rod is connected to the external door leaf.
[0011] Wherein, the screw rod is located on the driving mechanism of the vehicle door system of rail transportation.
[0012] Wherein, the mounting hole is a threaded mounting hole.
[0013] Beneficial effects: Compared with the existing technology, the utility model has the following significant advantages: the utility model can ensure that the door will not be locked in the emergency unlocking state, ensuring safety, taking up less space and operating more reliably, better maintainability, higher material utilization rate and lower cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural diagram of the utility model;
[0015] Figure 2 This is a schematic structural diagram of the anti-locking stopper of the present utility model;
[0016] In the figure, 1 is the middle unlocking assembly; 2 is the anti-locking stopper; 3 is the buffer head; 4 is the nut assembly; 5 is the screw rod; and 6 is the middle bracket. DETAILED DESCRIPTION
[0017] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.
[0018] The novel intermediate unlocking and anti-locking stop structure of the drive mechanism of the present utility model includes an intermediate unlocking assembly 1, which is mounted on a center bracket 6 and connected to a nut assembly 4 via a screw rod 5. An anti-locking stop 2 is fixedly mounted on the intermediate unlocking assembly 1, and rotates with the intermediate unlocking assembly 1. A buffer head 3 is provided on the nut assembly 4. In the emergency unlocking state, if the door moves in the closing direction, the buffer head 3 will collide with the anti-locking stop 2, preventing the door system from closing. Locking and unlocking are achieved by operating the emergency unlocking device, causing the intermediate unlocking assembly 1 to rotate, and the nut assembly 4 rotates and moves with the screw rod 5 to achieve movement of the door leaf.
[0019] The intermediate unlocking assembly 1 of the present invention is provided with a mounting hole for mounting the anti-locking stop 2. The intermediate unlocking assembly 1 is mounted on the middle bracket 6 by bolts. The nut assembly 4 is provided with a mounting hole for mounting the buffer head 3. The screw rod 5 is connected to the external door leaf. The door leaf is located on the drive mechanism of the vehicle door system of rail transit. The mounting hole is a threaded mounting hole. The anti-locking stop 2 and the buffer head 3 have a relative motion relationship, that is, the two do not affect each other when the door system is normally opened and closed. After emergency unlocking, the anti-locking stop 2 and the buffer head 3 collide with each other when the door moves in the closing direction, preventing the door from closing.
[0020] When the door system is operating normally, the intermediate unlocking assembly 1 is in a locked state, and the anti-locking stop 2 is at another angle position. When closing the door, it does not interfere with the nut assembly 4 and the buffer head 3, and does not affect the opening and closing of the door.
[0021] When the door system is in the emergency unlocking state (after operating the emergency unlocking device), the intermediate unlocking component 1 is in the unlocking state and the anti-locking stop 2 is in the Figure 1 At the angular position in the middle, after emergency unlocking, the door can be manually opened and moved, and the nut assembly 4 moves on the screw rod 5 following the movement direction of the door. When the door moves in the closing direction and moves a certain distance, the buffer head 3 will collide with the anti-locking stop before the nut assembly 4, preventing the door from being closed again and affecting the escape of passengers.
[0022] like Figure 1 As shown, the anti-locking stop structure of the utility model adopts a single stop and a buffer head, and the buffer head is squeezed against the stop to prevent the door from being closed. Compared with the double stop structure type on the existing products, the use of materials is reduced, and the new stop material utilization rate is higher, and the processing amount is reduced. At the same time, this anti-locking function has high requirements on the rigidity of the material of the stop. The double stop structure will use materials with better rigidity to prevent the deformation of the stop when the door is closed by mistake. The stop structure of the utility model can effectively avoid the deformation of the stop by means of collision buffering between the buffer head and the stop plane, thereby extending the service life. At the same time, the rigidity requirements for the stop are reduced, the material grade is reduced in terms of material, and the cost is reduced. The anti-locking stop structure of the utility model occupies less space, is more conducive to repair and replacement, and has better maintainability.
Claims
1. A novel intermediate unlocking anti-locking stop structure for a drive mechanism, characterized by: The invention comprises an intermediate unlocking assembly (1), the intermediate unlocking assembly (1) being mounted on a middle bracket (6), the intermediate unlocking assembly (1) being connected to a nut assembly (4) via a screw rod (5), an anti-locking stopper (2) being fixedly provided on the intermediate unlocking assembly (1), and a buffer head (3) being provided on the nut assembly (4).
2. The novel intermediate unlocking anti-locking stop structure of the drive mechanism according to claim 1 is characterized in that: The intermediate unlocking component (1) is provided with a mounting hole for mounting the anti-locking stopper (2).
3. The novel intermediate unlocking anti-locking stop structure of the drive mechanism according to claim 1 is characterized in that: The intermediate unlocking assembly (1) is mounted on the middle bracket (6) via bolts.
4. The novel intermediate unlocking and anti-locking stop structure of the drive mechanism according to claim 1 is characterized in that: The nut assembly (4) is provided with a mounting hole for mounting the buffer head (3).
5. The novel intermediate unlocking and anti-locking stop structure of the driving mechanism according to claim 1 is characterized in that: The screw rod (5) is connected to the external door leaf.
6. The novel intermediate unlocking and anti-locking stop structure of the driving mechanism according to claim 5 is characterized in that: The screw rod (5) is located on a driving mechanism of a vehicle door system of rail transportation.
7. The novel intermediate unlocking and anti-locking stop structure of a drive mechanism according to claim 2 or 4, characterized in that: The mounting hole is a threaded mounting hole.