Door lock device for sliding doors

A door lock and lock frame technology, applied in the field of mechanical components, can solve the problems of impact kinetic energy roller, lock fork and its connecting mechanism damage, unstable operation of lock and connecting mechanism, etc., achieves fast reset speed, simple structure, and prevents jamming effect of the phenomenon

Active Publication Date: 2018-05-18
南京海龙电气科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A Chinese patent document with the publication number CN201546535U has now been retrieved for the automatic lock of the sliding door. It is recorded in the patent document that the lock fork is not provided with a deceleration buffer mechanism in the middle of its rotation, resulting in a large impact on the kinetic energy rollers of the lock fork when it is rotating, which is easy to use. The lock fork and its connecting mechanism cause damage, resulting in unstable operation of the lock and connecting mechanism

Method used

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  • Door lock device for sliding doors
  • Door lock device for sliding doors
  • Door lock device for sliding doors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment one, refer to figure 1 and figure 2 , the lock fork 2, the lock fork 2 is rotatably connected to the lock frame 1 through the rotating shaft 3. Figure 5 and Figure 7 , the rotating shaft 3 is plugged into the lock hole 24 of the lock fork 2, and a bearing 25 is installed in the lock hole 24. The number of the bearings 25 is two, and the two ends of the lock fork 24 are clamped, so that the lock fork 2 is reduced. Frictional resistance to rotation. Figure 5 and Figure 6 Among them, the left end of the lock fork 2 is provided with a cutout that matches the roller 8, and by rotating the lock fork 2 upward, the roller 8 in the lock fork 2 rotates upward to realize locking; and after the lock fork 2 resets downward, unlocking is realized . A cylinder 55 is arranged below the lock fork 2, and the push rod of the cylinder 55 is hinged with the lock fork 2 through a connecting shaft; 1 on the frame, and the rod cavity of the cylinder 55 is provided with a ...

Embodiment 3

[0058] Embodiment three, refer to figure 1 , image 3 and Figure 10 , the automatic unlocking mechanism 6 includes a piston cylinder 61, the piston cylinder 61 fixes the cylinder 61 on the cover plate position of the lock frame 1 through two screws, the piston rod 63 of the piston cylinder 61 faces downward, and the first square shaft 411 is sleeved Connecting plate 62 is arranged, and when piston rod 63 is ejected, its end connects connecting plate 62, makes connecting plate 62, bearing shaft 41 and dial 431 rotate synchronously, and it makes dial 431 spin out lock groove 22, reaches the purpose of unblanking. If the piston rod 63 and the connecting plate 62 are hinged, the resistance when the bearing torsion spring 42 is reset will increase, reducing the sensitivity when the bearing shaft 41 is reset, and the gap between the piston rod 63 and the connecting plate 62 effectively solves the above-mentioned problem. Technical issues with low sensitivity.

Embodiment 4

[0059] Embodiment four, refer to image 3 and Figure 4 , the manual unlocking mechanism 7 includes a swivel frame 71, the swivel frame 71 is installed on the lock frame 1 through a rotating shaft, the swivel frame 71 is fixed with a paddle 72, the connecting plate 62 is extended with a long arm plate 73, and the long arm plate 73 is larger than The length of the connecting plate 62 makes the arm of the manual operation longer and the manual unlocking easier;

[0060] The upper surface of the plectrum 72 is provided with a first slope 74, and the long arm plate 73 is provided with a second slope 75, the first slope 74 can fit the second slope 75, the design of the first slope 74 and the second slope 75 The contact area between the plectrum 72 and the long-arm plate 73 is increased, so that the force of the long-arm rod is more stable during the collision process, and the rotation accuracy of the bearing shaft 41 is higher.

[0061] Manual unlocking steps: the pick 72 and the...

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Abstract

The invention discloses a door lock device for a sliding plug door and solves the technical problem of poor operation stability of door lock devices. According to the key point of the technical scheme, the door lock device comprises a lock carrier, a bearing shaft and a push rod, and is characterized in that the lock carrier is in pin joint with a lock fork with a buffer slot and a lock slot, the bearing shaft is provided with bearing torsional springs and a shifting claw, the number of the bearing torsional springs is an even number, the bearing torsional springs are arranged at two sides of the shifting claw, the shifting claw props against the lock fork by the bearing torsional spring; under the driving of the push rod, the lock fork rotates around a pin joint point and the shifting claw is sequentially clamped into the buffer slot and the lock slot; the bearing shaft is provided with a manual unlocking mechanism and an automatic unlocking mechanism for driving the shifting claw to be screwed out of the lock slot; the shifting claw is fixed on a reset disc; the rest disc is arranged at the square shaft of the bearing shaft; and the bearing shaft is sleeved with a self-lubricating shaft sleeve fixed on the lock carrier, and therefore, connection of internal components of the door lock devices is steady and component transmission is steady.

Description

technical field [0001] The present invention relates to the mechanical component of rail car and bus, more specifically, it relates to a kind of door lock mechanism of rail car and bus. Background technique [0002] Compared with the inner swing door and the sliding door, the sliding door for the vehicle is opened from the inside of the compartment to the outside of the compartment, and the door will not be blocked due to the crowding of passengers in the compartment. It is more and more widely used in subway light rail and public transport vehicles. [0003] A Chinese patent document with the publication number CN201546535U has now been retrieved for the automatic lock of the sliding door. It is recorded in the patent document that the lock fork is not provided with a deceleration buffer mechanism in the middle of its rotation, resulting in a large impact on the kinetic energy rollers of the lock fork when it rotates. The lock fork and its connecting mechanism cause damage...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05B77/38E05B77/42
CPCE05B77/38E05B77/42
Inventor 罗联国
Owner 南京海龙电气科技有限公司
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