CN212716243U

CN212716243U - Two-stage locking device for lower side door of railway vehicle open wagon

Info

Publication number: CN212716243U
Application number: CN202021347777.2U
Authority: CN
Inventors: 李志洪
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-03-16
Anticipated expiration: 2030-07-10

Abstract

The utility model discloses a two-stage locking device for a side door of a railway vehicle gondola car, which comprises a buckle seat, a buckle iron and a buckle groove, wherein a first pillar and a second pillar are arranged on the buckle seat at a certain interval; the fastening grooves comprise a first fastening groove arranged in the first support and a second fastening groove arranged in the second support, the fixed ends of the fastening irons are hinged in the first fastening groove, and the free ends of the fastening irons can extend into the second fastening groove through rotation; a hollow cavity is formed among the first support column, the second support column, the button iron and the button seat, a first limiting flange is arranged at the mouth of the first button groove in an inward extending and inclining mode, and a second limiting flange is arranged at the mouth of the second button groove in an inward extending and inclining mode; the first limit flange and the second limit flange of the utility model have a limit function on the button iron in the button groove, so that the button iron can be prevented from jumping out of the button groove, two-stage locking of the button iron is realized, the cost and the labor intensity are greatly reduced, and the efficiency is improved; and the structure is simpler and the operation is simpler.

Description

Two-stage locking device for lower side door of railway vehicle open wagon

Technical Field

The utility model belongs to the technical field of the railway transportation technique and specifically relates to a railway vehicle gondola car lower side door two-stage locking device.

Background

In recent years, in the application process of a railway freight car open wagon, the lower side door is not tightly matched with the hasp, so that the problems of hasp limiting failure, overlarge matching gap and the like are easily caused, the hasp device is automatically unlocked, then goods damage or line-crossing accidents are caused, and relatively large economic loss and safety accidents are brought to railway transportation. In order to prevent similar accidents, the railway transportation department uses iron wires to bind the hasp iron and the door hinge after the open wagon is loaded, or prevents driving safety accidents caused by automatic unlocking of the lower side door of the open wagon in the transportation process by adding a wood wedge, thereby ensuring the safety of transported goods. The iron wire cost required by the binding mode is 2.5 billion yuan RMB each year according to the existing nearly 60 ten thousand open cars on the whole road. It can be seen that the binding not only increases the cost of transportation, but also must be bound and released by a specially-assigned person, thereby affecting the efficiency of the cargo handling process.

In the prior art, chinese patent CN201264609 discloses a dual self-locking buckle, which includes a buckle seat and a buckle iron, where the buckle seat includes a plate-shaped base, and a first pillar and a second pillar that are separated from each other and extend perpendicular to the base, one end of the buckle iron is pivotally connected to the first pillar, and the other free end of the buckle iron is detachably connected to the second pillar, where the second pillar is further provided with a self-locking device to lock the free end of the buckle iron with the second pillar. The spring is adopted as a double self-locking buckle, and the buckle is easy to corrode and damage due to the fact that the buckle is in a severe working environment, so that the service life of the buckle is short; in addition, the corresponding structure for installing the spring is complex, the operation is inconvenient, and the maintenance frequency is high.

SUMMERY OF THE UTILITY MODEL

The utility model provides a railway vehicle gondola car lower side door two-stage locking device for solving the technical problems of short service life and complex structure of the hasp in the prior art.

The utility model adopts the technical proposal that: the two-stage locking device for the lower side door of the railway vehicle gondola car comprises a buckle seat, a buckle iron and a buckle groove, wherein a first support column and a second support column are arranged on the buckle seat at a certain interval, and a first through hole is formed in the first support column; the fastening grooves comprise a first fastening groove arranged in the first support and a second fastening groove arranged in the second support, the second fastening groove is arranged in the extending direction of the first fastening groove, the fixed end of the fastening iron is hinged in the first fastening groove, and the free end of the fastening iron can extend into the second fastening groove through rotation; a hollow cavity is formed among the first support column, the second support column, the button iron and the button seat, a first limiting flange is arranged at the mouth of the first button groove in an extending and inclining mode, and a second limiting flange is arranged at the mouth of the second button groove in an extending and inclining mode.

The hasp seat can be fixed on the vehicle body through the bolt, and when the lower side door needs to be locked, the cavity is opened through the rotary button iron, and the door hinge on the lower side door is locked into the cavity; rotating the button iron to ensure that the button iron extends into the button groove to realize the locking of the door hinge; because the mouth parts of the first buckle groove and the second buckle groove are inwards extended and obliquely provided with the first limiting flange and the second limiting flange, the iron buckles are extruded in the buckle grooves by utilizing the reaction force of the lower side door in a closed state; in addition, first limit flange and second limit flange play limiting displacement to the button iron in the catching groove, can avoid the button iron to scurry out the catching groove, realize the two-stage locking to the button iron. Compared with the traditional hasp, the utility model avoids the use of auxiliary equipment such as iron wires or wood wedges, greatly reduces the cost and the labor intensity, and improves the transportation efficiency; compared with the hasp in the prior art, the utility model discloses a two-stage locking device makes to be connected between side door and the hasp inseparabler, firm down, and the structure is more simple, the operation is more simple and convenient, and non-maintaining.

Furthermore, the included angle between the first limiting flange and the vertical direction is 20-30 degrees, so that smooth clamping of the button iron into the button groove can be guaranteed, the first limiting flange can be guaranteed to limit the button iron in the button groove, and the button iron is prevented from escaping.

Further, the included angle between the first limiting flange and the vertical direction is 25 degrees.

Furthermore, a movable sleeve is movably arranged in the first buckling groove, a buckling iron is fixedly connected with the outer wall of the movable sleeve, and a bolt penetrates through the movable sleeve. The button iron is hinged with the first support column through the movable sleeve, so that the abrasion of the button iron in the rotating process is reduced, the contact area of the button iron and the first support column is increased, and the connection stability of the button iron and the first support column is further ensured.

Furthermore, a rib plate is arranged between the second support column and the buckle seat, so that the stability of the second support column and the buckle seat is ensured.

Furthermore, a second through hole is formed in the buckle seat, and a rivet is arranged in the second through hole. The rivet is further fixed to the hasp seat and the vehicle body through the second through hole, and the stability of the hasp seat is enhanced.

The utility model has the advantages that:

1. the first limit flange and the second limit flange of the utility model have a limit function on the button iron in the button groove, so that the button iron can be prevented from jumping out of the button groove, two-stage locking of the button iron is realized, the transportation cost and the labor intensity are greatly reduced, and the transportation efficiency is improved; and the structure is simpler, the operation is simpler and more convenient, and the maintenance is free.

2. The utility model discloses a detain the iron and pass through the movable sleeve and articulate with first pillar, reduced the wearing and tearing of knot iron at rotatory in-process, increased the area of contact of knot iron with first pillar, and then guarantee the stability of both connections.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the buckle holder.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a left side view of fig. 2.

Labeled as:

1. a buckle seat; 2. buckling iron; 3. a first support; 4. a second support; 5. a chamber; 6. a rib plate; 7. a vehicle body; 11. a second through hole; 31. a first through hole; 32. a bolt; 33. a movable sleeve; 41. a first catching groove; 42. a second catching groove; 401. a first stop flange; 402. a second position-defining flange; alpha, the included angle between the first limiting flange and the vertical direction.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Example one

Referring to fig. 1, 2, 3 and 4, the two-stage locking device for the side door of the railway vehicle gondola car of the present invention comprises a buckle seat 1, a buckle 2 and a buckle slot, wherein a first pillar 3 and a second pillar 4 are arranged on the buckle seat 1 at a certain distance, the first pillar 3 is provided with a first through hole 31, and a bolt 32 is arranged in the first through hole 31; the buckle slot comprises a first buckle slot 41 arranged in the first support 3 and a second buckle slot 42 arranged in the second support 4, the second buckle slot 42 is arranged in the extending direction of the first buckle slot 41, the fixed end of the buckle iron 2 is hinged in the first buckle slot 41, and the free end of the buckle iron 2 can extend into the second buckle slot 42 through rotation; a hollow cavity 5 is formed among the first support 3, the second support 4, the button iron 2 and the button seat 1, a first limit flange 401 is arranged at the mouth of the first button groove 41 in an extending and inclining mode, and a second limit flange 402 is arranged at the mouth of the second button groove 42 in an extending and inclining mode. The first limit flange and the second limit flange of the utility model have a limit function on the button iron in the button groove, so that the button iron can be prevented from jumping out of the button groove, two-stage locking of the button iron is realized, the transportation cost and the labor intensity are greatly reduced, and the transportation efficiency is improved; and the structure is simpler and the operation is simpler.

The first limit flange of this embodiment is 25 with the contained angle alpha of vertical direction, and the contained angle of second limit flange and vertical direction is the same with first limit flange, can guarantee that the smooth card of knot iron is gone into to the catching groove in, can guarantee again that first limit flange and second limit flange play limiting displacement to the knot iron in the catching groove, avoids the knot iron to scurry out.

Referring to fig. 1, in the present embodiment, a rib plate 6 is disposed between the second pillar 4 and the buckle seat 1 to ensure stability of the second pillar and the buckle seat.

Referring to fig. 2, in the present embodiment, a second through hole 11 is formed in the buckle holder 1, and a rivet (not shown) is disposed in the second through hole 11. The rivet is further fixed to the hasp seat and the vehicle body through the second through hole, and the stability of the hasp seat is enhanced.

Example two

Referring to fig. 1, on the basis of the first embodiment, the movable sleeve 33 is movably arranged in the first buckle slot 41, the buckle 2 is fixedly connected with the outer wall of the movable sleeve 33, and the bolt 32 penetrates through the movable sleeve 33. The button iron is hinged with the first support column through the movable sleeve, so that the abrasion of the button iron in the rotating process is reduced, the contact area of the button iron and the first support column is increased, and the connection stability of the button iron and the first support column is further ensured.

The working principle is as follows: fix the hasp seat on the automobile body chassis boundary beam of door foldout lower extreme earlier, specifically do: the bolt sequentially passes through the first through hole and the side beam of the vehicle body underframe to be connected with the nut, and the rivet passes through the second through hole to be connected with the side beam of the vehicle body underframe; when the door hinge needs to be locked, the cavity is opened through the rotary button iron, and the door hinge can fall into the cavity and then enter the button groove through the rotary button iron. Because the opening part of the buckle groove is inwards extended and obliquely provided with the first limiting flange and the second limiting flange, the buckle iron is extruded in the buckle groove by utilizing the reaction force of the lower side door in a closed state; meanwhile, the first limiting flange and the second limiting flange limit the button iron in the button slot, so that the button iron can be prevented from jumping out of the button slot, and two-stage locking of the button iron is realized; the transportation cost and the labor intensity are greatly reduced, and the transportation efficiency is improved; and the structure is simpler, the operation is simpler and more convenient, and the maintenance is free.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The two-stage locking device for the lower side door of the railway vehicle open wagon comprises a buckle seat (1), a buckle iron (2) and a buckle groove, wherein a first support column (3) and a second support column (4) are arranged on the buckle seat (1) at a certain interval, a first through hole (31) is formed in the first support column (3), and a bolt (32) is arranged in the first through hole (31); the buckle slot comprises a first buckle slot (41) arranged in the first support column (3) and a second buckle slot (42) arranged in the second support column (4), the second buckle slot (42) is arranged in the extending direction of the first buckle slot (41), the fixed end of the buckle iron (2) is hinged in the first buckle slot (41), and the free end of the buckle iron (2) can extend into the second buckle slot (42) through rotation; a hollow cavity (5) is formed among the first support column (3), the second support column (4), the button iron (2) and the button seat (1), and the buckle is characterized in that a first limiting flange (401) is arranged at the mouth of the first buckle groove (41) in an inward extending and inclining mode, and a second limiting flange (402) is arranged at the mouth of the second buckle groove (42) in an inward extending and inclining mode.

2. A railway vehicle gondola car lower side door two-stage locking device as claimed in claim 1, wherein the angle α of the first position-defining flange to the vertical is 20 ° to 30 °.

3. A railway vehicle gondola car lower side door two stage locking arrangement as claimed in claim 2, wherein the first position defining flange has an angle α of 25 ° to the vertical.

4. Two-stage locking device for a railway vehicle gondola lower side door according to claim 1, characterized in that a movable sleeve (33) is movably arranged in the first catching groove (41), the latch (2) is fixedly connected with the outer wall of the movable sleeve (33), and the bolt (32) penetrates through the movable sleeve (33).

5. A railway vehicle gondola lower side door two-stage locking arrangement according to claim 1, characterized in that a rib (6) is arranged between the second pillar (4) and the hasp holder (1).

6. A railway vehicle gondola lower side door two-stage locking device as claimed in claim 1, characterized in that the hasp holder (1) is provided with a second through hole (11), and the second through hole (11) is provided with a rivet.