CN213921007U

CN213921007U - Locking mechanism for through passage

Info

Publication number: CN213921007U
Application number: CN202022810123.5U
Authority: CN
Inventors: 李鸿; 刘理智; 梁志伟
Original assignee: ZHUZHOU JIUFANG BRAKE EQUIPMENT CO Ltd
Current assignee: ZHUZHOU JIUFANG BRAKE EQUIPMENT CO Ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-08-10
Anticipated expiration: 2030-11-26

Abstract

The invention relates to the technical field of vehicle accessories and discloses a locking mechanism for a through passage, which comprises a butt-joint frame, a lock rod connecting block and a lock handle, wherein the lock handle comprises a handle part, a lock middle section and a lock head part; the butt joint frame is provided with a limiting seat at a position corresponding to the middle locking section, the limiting seat is provided with a hole, and the middle locking section is provided with a locking piece matched with the hole on the limiting seat; the lock head part is also connected with a connecting piece through a revolute pair, a sliding groove for the lock rod connecting block to extend out is arranged on the butt joint frame, and the other end of the connecting piece is connected with the revolute pair of the lock rod connecting block. Each revolute pair of the locking mechanism moves flexibly and reliably, no movement dead point exists, structural self-locking of the locking mechanism can be realized at the relative position, mechanical self-locking of the locking member and the limiting seat under the matching action is additionally arranged, the locking mechanism is enabled to be self-locked reliably, and the vehicle operation safety is guaranteed while quick coupling and disassembly of the butt-joint type through passage are realized.

Description

Locking mechanism for through passage

Technical Field

The invention relates to the technical field of vehicle accessories, in particular to a locking mechanism for a through passage.

Background

The through passage is generally a component which is arranged between adjacent carriages of the railway vehicle and is used for preventing wind and rain from invading and protecting passengers from passing through, and the locking mechanism is a component for realizing quick connection and disconnection of the through passage. At present, through passages of rail vehicles are mostly of a butt-joint type structure, and the structure is favorable for quick connection and disconnection of vehicles during vehicle grouping; the reliable locking mechanism is the basis for ensuring the quick connection and disconnection of the through passage, but the traditional locking mechanism can only be self-locked by a butt joint type structure, a handle cover needs to be designed to be prevented from falling off, the locking mechanism does not have a self-locking structural design, the phenomenon of accidental opening due to misoperation can exist, the fault is difficult to find, and the maintenance is difficult.

Disclosure of Invention

The invention solves the technical problem of overcoming the defects of the prior art and provides a locking mechanism for a through passage, which has a simple structure and is reliable in self-locking.

The purpose of the invention is realized by the following technical scheme:

a locking mechanism for a through passage comprises a butt-joint frame, a lock rod connecting block and a lock handle, wherein the lock handle comprises a handle part, a lock middle section and a lock head part, a handle seat is arranged at the tail end of the lock head part of the butt-joint frame, and the lock head part is connected with a handle seat revolute pair; the butt joint frame is provided with a limiting seat at a position corresponding to the middle locking section, the limiting seat is provided with a hole, and the middle locking section is provided with a locking piece matched with the hole on the limiting seat; the lock head part is also connected with a connecting piece through a revolute pair, a sliding groove for the lock rod connecting block to extend out is arranged on the butt joint frame, and the other end of the connecting piece is connected with the revolute pair of the lock rod connecting block.

Further, the locking member is an indexing pin.

Furthermore, the middle lock section and the head lock section are integrally arranged in a Y-shaped structure, and the handle seat is positioned between fork openings of the Y-shaped structure.

Furthermore, the number of the connecting pieces is two, and the two connecting pieces are respectively positioned on two sides of the fork opening of the Y-shaped structure.

Furthermore, the limiting seat is welded on the butt-joint frame.

Further, the handle seat is welded on the butt-joint frame.

Compared with the prior art, the invention has the following beneficial effects:

each revolute pair of the locking mechanism moves flexibly and reliably, movement dead points do not exist, structural self-locking of the locking mechanism can be realized at relative positions, mechanical self-locking of the locking mechanism under the matching action of the locking piece and the limiting seat is additionally arranged, so that the locking mechanism is reliable in self-locking, superior in performance, simple and labor-saving in overall operation, safe in vehicle operation is guaranteed while quick coupling and disassembly of the butt-joint type through passage are realized, and misoperation in installation or operation of the butt-joint type through passage is effectively avoided.

Drawings

Fig. 1 is a front view of a through passage locking mechanism according to embodiment 1;

fig. 2 is a plan view of the through passage locking mechanism according to embodiment 1.

Detailed Description

The present invention will be further described with reference to the following detailed description, wherein the drawings are provided for illustrative purposes only and are not intended to be limiting; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

A kind of locking mechanism used for through passage as shown in fig. 1 and 2, including butt-joint frame 1, lock rod connecting block 2 and lock handle 3, the lock handle 3 includes integrally formed handle portion 31, locks middle section 32 and lock head portion 33, butt-joint frame 1 welds the handle seat 4 in the end of lock head portion, the lock head portion 33 is connected with handle seat 4 revolute pair; the butt joint frame 1 is further welded with a limiting seat 5 at the position corresponding to the middle locking section, a hole is formed in the limiting seat 5, a locking piece 6 matched with the hole in the limiting seat 5 is installed on the middle locking section 32, and the locking piece 6 is preferably an indexing pin; the lock head part 33 is also connected with a connecting piece 7 through a revolute pair, a chute 11 for the lock rod connecting block 2 to extend out is arranged on the butt joint frame 1, and the other end of the connecting piece 7 is connected with the revolute pair of the lock rod connecting block 2.

And a distance is reserved between the revolute pair connecting point of the lock head part 33 and the handle seat 4 and the revolute pair connecting point of the lock head part 33 and the connecting piece 7 along the length extending direction of the butt joint frame, and the revolute pair connecting point of the lock head part 33 and the connecting piece 7 is positioned between the limiting seat 5 and the revolute pair connecting point of the lock head part 33 and the connecting piece 7.

In order to increase the structural strength of the locking mechanism and to make the locking mechanism more flexible to operate, the middle lock section 32 and the lock head 33 are integrally arranged in a Y-shaped structure, the handle seat 4 is located between the fork openings of the Y-shaped structure, and correspondingly, the two connecting pieces 7 connected with the rotating pair of the lock head 33 are located on two sides of the fork openings of the Y-shaped structure respectively.

The locking mechanism works as follows: the index pin is pulled open, the pin shaft of the index pin is contracted to be separated from the hole of the limiting seat 5, the lock handle 3 is driven to move upwards to the limit, in the process, the lock handle 3 drives the connecting piece 7 to move, the lock rod connecting block 2 connected with the connecting piece 7 moves along the sliding groove 11 on the butt-joint frame, and therefore the lock rods of the adjacent butt-joint frames are separated, and the rapid de-knitting of the butt-joint through channel is achieved.

When the through passage needs to be hung, the butt-joint type through passage is well butted, the lock handle 3 is driven to move downwards by reverse hand, when the indexing pin is close to the limiting seat 5, the indexing pin is pulled, the pin shaft of the indexing pin is contracted to be aligned with the hole of the limiting seat 5, the indexing pin is loosened, the pin shaft of the indexing pin extends out to be matched with the hole of the limiting seat 5, and the hanging operation is finished.

Each revolute pair of the locking mechanism is flexible and reliable in movement, free of movement dead points, simple and labor-saving in operation, and capable of achieving structural self-locking of the locking mechanism at relative positions, and the additionally arranged locking piece is matched with the limiting seat to achieve mechanical self-locking, so that the locking mechanism is reliable in self-locking, the vehicle operation safety is guaranteed while quick connection and disassembly of the butt-joint through passage are achieved, misoperation in installation or operation of the butt-joint through passage is effectively avoided, and meanwhile, the locking mechanism is simple in structure, small in occupied space and high in operation reliability and cost performance.

The locking mechanism is not only applied to the railway vehicle, but also can be used for linkage and disassembly as long as the vehicle is provided with a through passage.

It should be understood that the above examples are only for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A locking mechanism for a through passage is characterized by comprising a butt-joint frame, a lock rod connecting block and a lock handle, wherein the lock handle comprises a handle part, a lock middle section and a lock head part; the butt joint frame is provided with a limiting seat at a position corresponding to the middle locking section, the limiting seat is provided with a hole, and the middle locking section is provided with a locking piece matched with the hole on the limiting seat; the lock head part is also connected with a connecting piece through a revolute pair, a sliding groove for the lock rod connecting block to extend out is arranged on the butt joint frame, and the other end of the connecting piece is connected with the revolute pair of the lock rod connecting block.

2. The locking mechanism for a through passage of claim 1, wherein the locking member is an indexing pin.

3. The locking mechanism for a through passage according to claim 1 or 2, wherein the lock middle section and the lock head section are integrally provided in a Y-shaped configuration, and the handle holder is located between the fork openings of the Y-shaped configuration.

4. The locking mechanism for a through passage of claim 3, wherein there are two connectors located on either side of the mouth of the Y-shaped structure.

5. The locking mechanism for a through passage according to claim 1, wherein the stopper seat is welded to the docking frame.

6. The locking mechanism for a through passage of claim 1, wherein the handle housing is welded to the docking frame.