Novel unlocking device

Abstract

The utility model discloses a novel unlocking device which comprises an unlocking seat and an unlocking rod, the end portion of the unlocking rod is connected with a chuck, two limiting sleeves are arranged on the unlocking rod, and the unlocking rod is connected with an unlocking plate. The unlocking plate is connected with a pressure spring for resetting, a friction block is arranged at the side part of the unlocking plate, and a buffer rubber pad is arranged at the end part of the unlocking plate. Different from an end unlocking device in the prior art, the middle unlocking device of a brand new structure is adopted and is independent of a transmission part, and single-point faults are avoided; no screw connection is adopted, so that the screw loosening phenomenon is avoided, and the component failure rate is reduced; and the unlocking noise is reduced.

Description

Technical Field

[0001] The utility model relates to a door system of urban rail transit vehicles, in particular to a novel unlocking device. Background Art

[0002] The existing unlocking device used for rail transit vehicle doors is an end unlocking device. During use, it is found that the end unlocking device is prone to problems such as screw loosening and large unlocking noise.

[0003] Therefore, it is necessary to develop a novel unlocking device targeted to solve the above problems. Summary of the Utility Model

[0004] Purpose of the utility model: Aiming at the deficiencies and defects of the prior art, the utility model provides a novel unlocking device, which is different from the existing end unlocking device of the prior art. It adopts an intermediate unlocking device with a brand-new structure and is independent of the transmission component, avoiding single-point failures; there is no screw connection, avoiding screw loosening phenomena, reducing the failure rate of components; and reducing unlocking noise.

[0005] Technical solution: A novel unlocking device of the utility model is characterized in that: it includes an unlocking seat and an unlocking rod. The end of the unlocking rod is connected to a chuck, and there are 2 limit sleeves on the unlocking rod. The unlocking rod is connected to an unlocking plate; the unlocking plate is connected to a compression spring for resetting, there is a friction block on the side of the unlocking plate, and a buffer rubber pad is provided at the end of the unlocking plate.

[0006] Among them, the unlocking seat is fixedly connected to an external mechanism.

[0007] Among them, retaining rings are provided on the sides of both of the 2 limit sleeves.

[0008] Among them, the connection part between the unlocking rod and the unlocking plate is a stepped structure.

[0009] Among them, the chuck is connected to an external steel wire rope.

[0010] Among them, the steel wire rope is connected to an external wire drawing disc.

[0011] Among them, the unlocking seat is arranged on the door of the urban rail transit vehicle.

[0012] Advantageous effects: Compared with the prior art, the utility model has the following remarkable advantages: The utility model provides a brand-new intermediate unlocking method; the novel unlocking device and the transmission component are independent of each other, avoiding single-point failures; the novel unlocking device has no screw connection, avoiding screw loosening phenomena, reducing the failure rate of components; the novel unlocking device can effectively reduce unlocking noise. Description of the Drawings

[0013] Figure 1The usage state of the present utility model Figure 1 ;

[0014] Figure 2 is the structural schematic diagram of the present utility model;

[0015] Figure 3 is the structural schematic diagram of the unlocking seat of the present utility model;

[0016] Figure 4 is the structural schematic diagram of the unlocking rod of the present utility model;

[0017] Figure 5 is the structural schematic diagram of the limiting sleeve of the present utility model;

[0018] Figure 6 is the appearance of the present utility model Figure 1 ;

[0019] Figure 7 is the appearance of the present utility model Figure 2 ;

[0020] Figure 8 is the usage state of the present utility model Figure 2 ;

[0021] Figure 9 is the usage state of the present utility model Figure 3 ;

[0022] In the figure, 1 is the unlocking seat; 2 is the unlocking rod; 3 is the limiting sleeve; 4 is the retaining ring; 5 is the compression spring; 6 is the unlocking plate; 7 is the buffer rubber pad; 8 is the friction block; 9 is the chuck; 10 is the wire drawing disc; 11 is the steel wire rope. Detailed implementation manners

[0023] The technical solution of the present utility model will be further described below in conjunction with the attached drawings and specific implementation manners.

[0024] The novel unlocking device of the present utility model includes an unlocking seat 1 and an unlocking rod 2. The end of the unlocking rod 2 is connected to a chuck 9. There are 2 limiting sleeves 3 provided on the unlocking rod 2. The unlocking rod 2 is connected to an unlocking plate 6. The unlocking plate 6 is connected to a compression spring 5 for reset. A friction block 8 is provided on the side of the unlocking plate 6, and a buffer rubber pad 7 is provided at the end of the unlocking plate 6. Among them, the unlocking seat 1 is fixedly connected to an external mechanism. Retaining rings 4 are provided on the sides of both limiting sleeves 3. The connection between the unlocking rod 2 and the unlocking plate 6 is a stepped structure. The chuck 9 is connected to an external steel wire rope 11. The steel wire rope 11 is connected to an external wire drawing disc 10. The unlocking seat 1 is arranged on the door of an urban rail transit vehicle.

[0025] During use, by operating an external device, the wire drawing disc 10 is rotated, and the steel wire rope 11 is pulled upward. Since the end of the steel wire rope 11 is clamped and fixed by the chuck 9, the chuck 9 is driven to move upward; the end of the unlocking rod 2 is lapped with the chuck 9, and as the chuck 9 moves upward, the unlocking rod 2 is pushed to move upward; the unlocking seat 1 is fixed to the external device, the unlocking rod 2 and the limiting sleeve 3 are in clearance fit, and the connection between the unlocking rod 2 and the unlocking plate 6 is a stepped structure. Thus, as the unlocking rod 2 moves upward, the unlocking plate 6 is pushed to move upward, so that the unlocking plate 6 triggers external unlocking. It has a self-resetting function. Under the action of the compression spring 5, after the unlocking plate 6 triggers external unlocking, it can self-reset. The buffer rubber pad 7 can effectively reduce the impact noise when the unlocking plate 6 triggers the external unlocking device.

[0026] The utility model provides a brand-new intermediate unlocking method; the unlocking device and the transmission components of the present invention are independent of each other, avoiding single-point failures; the unlocking device of the present invention has no screw connection, avoiding the phenomenon of screw loosening and reducing the failure rate of components; the unlocking device of the present invention can effectively reduce the unlocking noise.

Claims

1. A new unlocking device, characterized in that: The invention comprises an unlocking seat (1) and an unlocking rod (2), the end of the unlocking rod (2) is connected to a clamp (9), two limiting sleeves (3) are arranged on the unlocking rod (2), and the unlocking rod (2) is connected to an unlocking plate (6); the unlocking plate (6) is connected to a resetting compression spring (5), a friction block (8) is arranged on the side of the unlocking plate (6), and a buffer rubber pad (7) is arranged at the end of the unlocking plate (6).

2. The novel unlocking device according to claim 1 is characterized in that: The unlocking seat (1) is fixedly connected to an external mechanism.

3. The novel unlocking device according to claim 1 is characterized in that: The sides of the two limiting sleeves (3) are both provided with retaining rings (4).

4. The novel unlocking device according to claim 1 is characterized in that: The connection between the unlocking rod (2) and the unlocking plate (6) is a stepped structure.

5. The novel unlocking device according to claim 1 is characterized in that: The clamp (9) is connected to an external steel wire rope (11).

6. The novel unlocking device according to claim 5 is characterized in that: The steel wire rope (11) is connected to an external cable drum (10).

7. The novel unlocking device according to claim 1 is characterized in that: The unlocking seat (1) is arranged on a door of an urban rail transit vehicle.

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