CN216429321U - Side-opening door locking mechanism - Google Patents

Abstract

The utility model discloses a flat car side door, which comprises a stop iron, a lock iron, a stop block, a first round pin, a second round pin and a third round pin; the first round pin penetrates through the folding seat, and two ends of the first round pin are respectively and fixedly connected with the stop iron and the side door; the stop iron is provided with a first stop part; the first stopping part is matched with the second round pin; the folding seat is provided with a first guide hole, a third guide hole and a stop block; the first guide hole is arranged corresponding to the first stopping part; the second round pin is positioned in the first guide hole; a second stopping part is arranged on the lock iron, and a third stopping part is arranged on the stopping part; the second stopping part is contacted with the third stopping part and moves along the third stopping part; the second round pin is contacted with the second stopping part and the first stopping part, and the side-opening door locking mechanism is locked. The utility model discloses can realize the locking of the different angles of side door.

Description

Side-opening door locking mechanism

Technical Field

The utility model relates to a locking mechanism opens door inclines belongs to the locking mechanism technical field that opens door that inclines.

Background

In conventional transportation vehicles, vehicles having a side door are used in large quantities because of convenience in loading goods, and the side door is required to be freely opened and safely closed in order to ensure safety during transportation and convenience during loading and unloading. However, in the prior art, the free opening and closing and locking of the side door of the railway flatcar adopts two sets of actuating mechanisms, namely a stop pawl with an eccentric hole and a ratchet at the edge of a hinge hole, to perform locking under the same action, so that the structure is complex.

SUMMERY OF THE UTILITY MODEL

The utility model provides a locking mechanism opens door inclines has solved the more complicated technical problem of locking structure among the prior art, adopts simple actuating mechanism can realize the locking of the different angles of the side door of opening.

In order to achieve the above purpose, the utility model adopts the technical proposal that: the locking mechanism comprises a stop iron, a locking iron, a stop block, a first round pin, a second round pin and a third round pin; the first round pin penetrates through the folding seat, and two ends of the first round pin are respectively and fixedly connected with the stop iron and the side door; the stop iron is provided with a first stop part; the first stopping part is matched with the second round pin; the folding seat is provided with a first guide hole, a third guide hole and a stop block; the first guide hole is arranged corresponding to the first stopping part; the second round pin is positioned in the first guide hole; a second guide hole is formed in the lock iron, and the third round pin is positioned in the second guide hole and the third guide hole; a second stopping part is arranged on the lock iron, and a third stopping part is arranged on the stopping block; the second stopping part is contacted with the third stopping part and moves along the third stopping part; the second round pin is in contact with both the second stopping part and the first stopping part, and the side-opening door locking mechanism is locked.

Preferably, a fourth stopping portion is arranged on the stopping iron, and an angle between the first stopping portion and the fourth stopping portion is a rotation angle formed by the side door. Therefore, the requirement of the rotating angles of different side doors can be met, and the device is more widely applicable.

Preferably, the angle between the first stopping portion and the fourth stopping portion is 180 degrees, which can meet the requirement of the side door rotation angle of the railway flat car.

Preferably, the second round pin is in contact with both the second stop and the fourth stop, and the side-door locking mechanism is locked.

Preferably, a gasket is assembled and welded in the first guide hole.

Preferably, the stop block is wedge-shaped, the contact surface of the stop block and the lock iron is an inclined surface, and the inclined surface and the second guide hole limit the horizontal and vertical displacement of the lock iron together.

Preferably, the second guide hole corresponds to the third guide hole in position and is matched in shape.

The utility model discloses with the stop iron, the side is opened the door and is constituteed and the seat of folding paper rotates to be connected to set up backstop portion on the stop iron, through lock iron and dog with the contact of second round pin and backstop portion, accomplish the locking of side door locking mechanism simultaneously. The stop part on the stop iron is arranged at different positions, so that the locking device can be suitable for different locking angles of the side door.

The utility model discloses be provided with first backstop portion and fourth backstop portion on suspending the stop iron, relative position between first backstop portion and the fourth backstop portion sets up according to the rotation angle that the side was opened the door and is constituteed to can make the side open the door just found the homoenergetic locking when standing upside down.

Drawings

FIG. 1 is a schematic view of the middle side door of the present invention locking when it is upright;

fig. 2 is a schematic view of the free rotation of the middle side door of the present invention when it is upright;

FIG. 3 is a schematic view of the present invention showing the free rotation of the middle side door when the door is inverted;

fig. 4 is a schematic view of the locking mechanism when the middle side door is opened upside down;

FIG. 5 is a schematic view of the stop of the present invention;

fig. 6 is a schematic structural view of the lock iron of the present invention;

fig. 7 is a schematic structural view of the middle stop of the present invention.

Wherein: 1-stop iron, 101-first stop part, 102-fourth stop part, 2-lock iron, 201-second stop part, 3-stop block, 301-third stop part, 4-side opening door, 5-folding seat, 6-first round pin, 7-second round pin, 8-third round pin, 9-first guide hole and 10-second guide hole.

Detailed Description

For a better understanding of the nature of the present invention, its further description is provided below with reference to the following detailed description and the accompanying drawings.

The utility model particularly relates to a locking mechanism is opened to flatcar side, the locking that is particularly useful for flatcar side to open door in the railway transportation, as shown in fig. 1 to 7, including stop iron 1, lock iron 2 and dog 3. The stop iron 1 is provided with a first round pin hole. After the first round pin 6 penetrates through the folding seat 5 and the first round pin hole, two ends of the first round pin are respectively welded with the stop iron 1 and the side door assembly 4. The side-opening door assembly 4 can freely rotate along the first round pin hole relative to the folding seat 5. The stopper iron 1 is provided with a first stopper portion 101. As a preferred aspect of the present invention, the stopper 1 is provided with a first stopper 101 and a fourth stopper 102. The relative position between the first blocking portion 101 and the fourth blocking portion 102 is set according to the rotation angle of the side door assembly 4, so that the requirements of different locking angles of the side door can be met. The angle between the first stop 101 and the fourth stop is 180 °.

The folding seat 5 is provided with a first guide hole 9, a gasket is welded in the first guide hole 9, and the second round pin 7 penetrates into the first guide hole 9, so that the second round pin 7 can only move along the first guide hole 9. The position of the first guide hole 9 corresponds to the position of the first stopping portion 101, and the first stopping portion 101 is matched with the second round pin 7 and used for limiting the rotation of the stop iron 1.

The lock iron 2 is provided with a second guide hole 10, the folding seat 5 is provided with a third guide hole, and the second guide hole 10 corresponds to the third guide hole in position and is matched with the third guide hole in shape. The third round pin 8 passes through the second guide hole 10 and the third guide hole, so that the lock iron 2 can only move along the second guide hole 10.

The stop 3 is welded on the folding seat 5. The stop block 3 is wedge-shaped, the contact surface of the stop block with the lock iron 2 is an inclined surface, and the stop block and the second guide hole 10 jointly limit the movement of the lock iron 2 in the horizontal direction and the vertical direction.

The lock iron 2 is provided with a second stopping portion 201, and the stopper 3 is provided with a third stopping portion 301. When the lock iron 2 moves to the third stopper portion 301 along the inclined plane and the second guide hole 10, the second stopper portion 201 pushes the second round pin 7 to the first stopper portion 101 or the fourth stopper portion 102 along the first guide hole 9, and at this time, the locking mechanism is in a locking state, so that the side door does not rotate when standing upright or standing upside down.

The utility model discloses a theory of operation:

as shown in fig. 1, when the lock iron 2 moves downward to the third stopping portion 301 of the stopping block 3 along the inclined plane and the second guiding hole 10, the second stopping portion 201 on the lock iron 2 pushes the second round pin 7 to the first stopping portion 101 on the stopping iron 1 along the first guiding hole 9, and at this time, the second round pin 7 contacts with the first stopping portion 101 and the second stopping portion 201 and limits the rotation of the stopping iron 1 together, so that the side door assembly 4 does not rotate when kept upright.

Fig. 2 and 3 are schematic views showing the opened state of the locking mechanism. When the lock iron 2 is pushed to move upwards along the inclined plane and the second guide hole 10 to be far away from the third stopping portion 301, the second round pin 7 moves along the first guide hole 9 under the action of gravity to be far away from the first stopping portion 101, then the lock iron 2 is loosened to be in contact with the second round pin 7 under the action of gravity, and at the moment, the side door can rotate downwards by 180 degrees.

Fig. 4 is a schematic view of a side-opening door inverted lock. After the side door rotates 180 degrees downwards, the lock iron 2 is firstly pushed upwards to a certain position, then the second round pin 7 is pushed to the stop iron 1, and then the lock iron 2 is loosened, so that the second round pin 7 can move downwards under the action of gravity until the second round pin 7 is contacted with the second stop portion 201 and the fourth stop portion 102 and is locked, and finally the side door cannot rotate, so that the locking purpose is achieved.

When the side door is opened vertically and locked, the goods can be prevented from spilling, and when the side door is opened to a station for unloading, the side door can be rotated by 180 degrees and fixed in an inverted manner, so that the goods can be conveniently unloaded.

It should be noted that, although the present invention has been described by the above embodiments, the present invention may have other various embodiments. Various modifications and changes may be made by those skilled in the art without departing from the spirit and scope of the invention, and it is intended that all such modifications and changes fall within the scope of the appended claims and their equivalents.

Claims (8)

1. A side door locking mechanism characterized in that: comprises a stop iron (1), a lock iron (2), a stop block (3) and a second round pin (7); the stop iron (1) is fixedly connected with the side door assembly (4) and is rotatably connected with the folding seat (5); a first stopping part (101) is arranged on the stopping iron (1); the first stopping part (101) is matched with the second round pin (7); the folding seat (5) is provided with a first guide hole (9) and a stop block (3); the first guide hole (9) is arranged corresponding to the first stopping part (101); the second round pin (7) is positioned in the first guide hole (9); the lock iron (2) is rotationally connected with the folding seat (5); a second stopping part (201) is arranged on the lock iron (2), and a third stopping part (301) is arranged on the stop block (3); the second stopping part (201) is in contact with the third stopping part (301), and the second stopping part (201) moves along the third stopping part (301); the second round pin (7) is in contact with both the first stopping part (101) and the second stopping part (201), and the side-opening door locking mechanism is locked.

2. The side door locking mechanism of claim 1, wherein: the stop iron (1) is provided with a fourth stop part (102), and the angle between the first stop part (101) and the fourth stop part (102) is the rotating angle of the side door assembly (4).

3. A side door locking mechanism as set forth in claim 2 wherein: the angle between the first stop (101) and the fourth stop (102) is 180 °.

4. The side door latch mechanism of claim 2 or 3, wherein: the second round pin (7) is in contact with both the second stopping part (201) and the fourth stopping part (102), and the side-opening door locking mechanism is locked.

5. A side door locking mechanism as set forth in claim 1 wherein: a first round pin hole is formed in the stop iron (1), and after the first round pin (6) penetrates through the folding seat (5) and the first round pin hole, two ends of the first round pin are fixedly connected with the stop iron (1) and the side door assembly (4) respectively.

6. A side door locking mechanism as set forth in claim 1 wherein: a second guide hole (10) is formed in the lock iron (2), and a third guide hole is formed in the folding seat (5); the second guide hole (10) corresponds to the third guide hole in position and is matched with the third guide hole in shape; and the third round pin (8) is positioned in the second guide hole (10) and the third guide hole.

7. The side door locking mechanism of claim 1, wherein: the stop block (3) is wedge-shaped, the contact surface of the stop block (3) and the lock iron (2) is an inclined surface, and the second stop part (201) of the lock iron (2) moves to the third stop part (301) of the stop block (3) along the inclined surface.

8. The side door locking mechanism of claim 1, wherein: and a gasket is arranged in the first guide hole (9).

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