CN202023437U

CN202023437U - Door locking device for railway freight open wagon

Info

Publication number: CN202023437U
Application number: CN2011201180060U
Authority: CN
Inventors: 刘兵; 杨春雷; 江明星; 谷美娜; 冯创友; 杨兴
Original assignee: CSR Meishan Rolling Stock Co Ltd
Current assignee: CRRC Meishan Co Ltd
Priority date: 2011-04-20
Filing date: 2011-04-20
Publication date: 2011-11-02
Anticipated expiration: 2021-04-20

Abstract

The utility model belongs to the field of machinery, and relates to a door locking device for a railway freight open wagon, in particular to a side-opening door lock for the railway freight open wagon. The door locking device comprises a lock box assembly, a lock lever assembly and a handle clamping seat, wherein the lock box assembly is mounted on the outside edge of a side door panel; the handle clamping seat is mounted at the lower right corner of the side door panel; and an upper door beam is arranged above the side door panel. The utility model adopts the key technology that a vertical shaft is fixed on the upper door beam; a sleeve pipe is sleeved on the vertical shaft; the lock box assembly is provided with a lock box; an upper supporting plate, a lower supporting plate and an inner supporting plate, all provided with round holes, are respectively arranged at two ends and the inner chamber of the lock box; the lock lever assembly comprises a lock shaft; a round tube is sleeved outside the lock shaft, and passes through the round holes in the upper supporting plate, the lower supporting plate and the inner supporting plate; the upper end of the round tube is positioned on the upper supporting plate; the lower end of the round tube is positioned in the lock box; a lock hook is mounted at the upper end of the lock shaft; a handle is mounted at the lower end of the lock shaft through a connecting shaft; and the lower end of the connecting shaft is supported on the outer side of the side door panel. The door locking device is safe, reliable, and simpler to operate.

Description

A kind of railway freight gondola car door lock assembly

Technical field

The utility model belongs to mechanical field, relates to a kind of railway freight gondola car door lock assembly, particularly relates to a kind of railway freight gondola car side lock that opens the door.

Background technology

Railway freight gondola car is mainly used in shipment coal, ore, building materials, plant equipment, steel and timber and other items.The most railway freight gondola cars of China all are provided with outside car body the side of side flat open and open the door, the side top of opening the door is overhead very high, operating personnel stand in ground can't carry out lock operation, existing way is to adopt the bolt-type locking device, adopts connecting rod that the operating grip of locking device is dropped to the position that the handled easily personnel stand in ground controlling.Its principle is in the side door plate outside locking bar that can vertically slide, also can horizontally rotate to be installed, the locking bar upper end is provided with an oblate tapered end, the fixedly connected operating grip in lower end perpendicular to the locking bar axial line, locking bar is installed in the side door plate outside by spring and gripper shoe; In addition, be provided with a rectangular lockhole on the curb girder above side is opened the door.At unlock position, the long limit of oblate tapered end is parallel with the long limit of lockhole, during locking, hold handle and vertically lift locking bar, make tapered end insert lockhole, in horizontal plane, spend to the direction rotating rod lock of close railway carriage about 90, the arc surface of tapered end is pressed on the long limit of lockhole, realizes the open the door locking on top of side.Backward rotation locking bar 90 degree when unblanking, the long limit of tapered end is parallel with the long limit of lockhole, makes tapered end release lock bore edges, spurs locking bar then straight down, and this moment, tapered end broke away from lockhole, release.

When this locking device is worked, need spur, horizontally rotate two kinds of actions of locking bar up and down.Owing to close behind the door, under the effect of goods lateral pressure, tapered end bears pressure all the time, adds the not fully constraint of lock shaft of tapered end bottom, and tapered end is bigger than normal to the distance of supporting seat, forfeiture is stable easily under pressure for tapered end, produce bigger additional torque and moment of flexure, increased the stress of locking bar, tapered end can fracture when serious, the effect of forfeiture locking jeopardizes traffic safety.In addition, after the locking bar upper end produces flexural deformation, may cause the locking bar clamping stagnation, be difficult to rotate or pulling, cause the difficulty of unblanking at the supporting seat place, even the consequence that can't unblank.

Summary of the invention

Problem to be solved in the utility model is exactly to provide at above deficiency a kind of safe and reliable railway freight gondola car side top locking device that opens the door.Its technical scheme is as follows:

It comprises lock box composition, locking bar composition and handgrip deck, and lock box is formed the outer ledge that is installed in the side door plate, and the handgrip deck is installed in the side door plate lower right corner, and side door plate top is the beam of calling.Its key technology is a fixing vertical shaft on beam to the doorstep, is with sleeve pipe on vertical shaft; Lock box is formed and to be had lock box, at the lock box two ends and the lock box inner chamber be welded with upper backup pad, lower supporting plate and the interior gripper shoe of band circular hole respectively; Locking bar is formed and is comprised lock shaft, lock shaft is with pipe outward, after pipe passes the circular hole of upper backup pad, lower supporting plate and interior gripper shoe, the pipe upper end is positioned on the upper backup pad, the pipe lower end is positioned at lock box, latch hook is installed in the lock shaft upper end, and handle is installed by connecting axle in the lower end, and the connecting axle lower end is bearing in the side door plate outside.

The utility model compared with prior art has following beneficial effect:

1, the utility model is applicable to remote locking open-top car side door, but turning handle 3.5 switch lock does not just need the action that spurs up and down, operates simpler;

2, latch hook 3.1 tension all the time during locking, the locking force position is constant, has good locking stability, and lock box 4.1, upper backup pad 4.2 provide sufficient rotational restraint for locking bar, and very near from latch hook 3.1, have reduced the flexural deformation of locking bar;

3, be provided with sleeve pipe 2 on vertical shaft 1, sleeve pipe 2 can reduce frictional resistance around vertical shaft 1 rotation, and sleeve pipe 2 can be dismantled, and is convenient to maintain and replace after the wearing and tearing;

4, adopt the integral catch 3.5 of variable cross-section, handle head and afterbody are crooked in opposite directions, have avoided stress to concentrate, and have improved the intensity and the reliability of handle;

5, the utility model also can be used for having other plant equipment of similar locking demand.

Description of drawings

Fig. 1 is the scheme of installation of the utility model on the open-top car side is opened the door;

Fig. 2 is the partial view on the utility model top;

Fig. 3 is for the utility model locking bar is formed structural representation;

Fig. 4 is the utility model connecting axle structural representation;

Fig. 5 is for the utility model lock box is formed structural representation.

The specific embodiment

Referring to Fig. 1 to Fig. 5, the utility model comprises lock box composition 4, locking bar composition 3 and handgrip deck 5, lock box composition 4 in right side door-plate 6 outsides, is installed handgrip deck 5 near side door plate 6 edges, vertical welded and installed in side door plate 6 lower right corner, side door plate 6 tops are the beams 7 of calling.Its key technology is a fixing vertical shaft 1 on beam 7 to the doorstep, vertical shaft 1 upper end is provided with external screw thread, passing side opens the door and fixes with nut behind the circular hole of beam 7 to the doorstep, the vertical shaft lower end is positioned at beam 7 belows to the doorstep, and vertical shaft 1 increases from top to bottom gradually, and the lower end has annular boss, support sleeve pipe 2 on annular boss, sleeve pipe 2 is a pipe, two chamfers or rounding, and sleeve pipe 2 can be around vertical shaft 1 rotation.Lock box is formed 4 and is had lock box 4.1, at lock box 4.1 two ends and the lock box inner chamber be welded with respectively the band circular hole upper backup pad 4.2, lower supporting plate 4.4 and interior gripper shoe 4.3, lock box 4.1 is that the cross section is trapezoidal crimping plate, upper backup pad 4.2, lower supporting plate 4.4 and interior gripper shoe 4.3 are the trapezoidal flat board of band circular hole, interior gripper shoe 4.3 evenly is welded on lock box 4.1 inner chambers, lower supporting plate 4.4 following vertical 1 set square 4.5 that connects, strengthening the structural strength of lock box, vertical shaft 1 lower end is positioned at upper backup pad 4.2 tops but not on upper backup pad 4.2.Locking bar is formed 3 and is comprised lock shaft 3.2, is with pipe 3.3 outside the lock shaft 3.2, and after pipe 3.3 passed the circular hole of upper backup pad, lower supporting plate and interior gripper shoe, the pipe upper end was positioned on the upper backup pad, and the pipe lower end is positioned at lock box; Crescent latch hook 3.1 is installed in the lock shaft upper end, and there is one section arc surface in the inboard stage casing of latch hook, and the latch hook root has a circular hole, is convenient to be enclosed within the lock shaft upper end, and the circle at arc surface place is concentric with the circular hole of latch hook root, and arc surface contacts with the sleeve pipe 2 outer wall faces of cylinder; Handle 3.5 is installed by connecting axle 3.4 in the lock shaft lower end, and pipe 3.3 lower ends are inserted and be welded in connecting axle 3.4 upper ends, and the connecting axle middle part is the rectangular pyramid body, and the connecting axle lower end is a screw-rod structure, is bearing in side door plate 6 outsides; Handle 3.5 heads have a square hole that mates with connecting axle 3.4 middle part rectangular pyramid bodies, the handle head is enclosed within the connecting axle middle part, uses nut, cottor pin to fix, the I-shaped structure that reduces gradually for the cross section in the middle of the handle, the handle afterbody is the circular shaft shape, and head and afterbody are crooked in opposite directions.

Switching process of the present utility model is: before shutting, handle 3.5 should be in the position vertical with side door plate 6, to guarantee that latch hook 3.1 is in unlock position, when shutting in the compartment side direction promote side door plate 6, make it near the compartment, then side direction turning handle 3.5 in the compartment, enter handgrip deck 5 up to handle end, this moment, latch hook 3.1 inner arc faces were pressed on the face of cylinder, sleeve pipe 2 outside, and the degree of freedom that constraint side door plate 6 rotates to the outside, compartment realizes the car door locking.When unblanking, from handgrip deck 5, take out handle 3.5, then to compartment lateral direction turning handle 3.5 about 90 degree, form 3 by locking bar and drive latch hook 3.1 sideway swivel outside the compartment, and turn to the position that latch hook can not run into sleeve pipe 2 when opening the door, discharge the rotational freedom of side door plate 6 to the outside, compartment, the realization car door is unblanked.

Claims

1. railway freight gondola car door lock assembly, comprise lock box composition (4), locking bar is formed (3) and handgrip deck (5), lock box is formed the outer ledge that (4) are installed in side door plate (6), handgrip deck (5) is installed in side door plate (6) lower right corner, side door plate (6) top is the beam (7) of calling, it is characterized in that going up fixedly vertical shaft (1) at the beam (7) of calling, on vertical shaft (1), be with sleeve pipe (2), lock box is formed (4) and is had lock box (4.1), at lock box (4.1) two ends and the lock box inner chamber be welded with the upper backup pad (4.2) of band circular hole respectively, lower supporting plate (4.4) and interior gripper shoe (4.3); Locking bar is formed (3) and is comprised lock shaft (3.2), the outer pipe (3.3) that is with of lock shaft (3.2), pipe (3.3) passes the circular hole of upper backup pad, lower supporting plate and interior gripper shoe, the pipe upper end is positioned on the upper backup pad, the pipe lower end is positioned at lock box, latch hook (3.1) is installed in the lock shaft upper end, and handle (3.5) is installed by connecting axle (3.4) in the lower end, and connecting axle (3.4) lower end is bearing in side door plate (6) outside.

2. according to the described railway freight gondola car door lock assembly of claim 1, it is characterized in that vertical shaft (1) increases from top to bottom gradually, the lower end has annular boss, and sleeve pipe (2) support is provided with external screw thread in vertical shaft (1) upper end on annular boss.

3. according to the described railway freight gondola car door lock assembly of claim 1, it is characterized in that sleeve pipe (2) is a pipe, sleeve pipe (2) two chamfer or roundings.

4. according to the described railway freight gondola car door lock assembly of claim 1, it is characterized in that lock box (4.1) is that the cross section is trapezoidal crimping plate, upper backup pad (4.2), lower supporting plate (4.4) and interior gripper shoe (4.3) are the trapezoidal flat board of band circular hole, following vertical 1 set square (4.5) that connects of lower supporting plate (4.4), interior gripper shoe (4.3) evenly is welded on lock box (4.1) inner chamber.

5. according to the described railway freight gondola car door lock assembly of claim 1, it is characterized in that latch hook (3.1) is crescent, there is one section arc surface in the inboard stage casing of latch hook, and the latch hook root has a circular hole, the circle at arc surface place is concentric with circular hole, and arc surface contacts with sleeve pipe (2) the outer wall face of cylinder.

6. according to the described railway freight gondola car door lock assembly of claim 1, it is characterized in that the insertion of connecting axle (3.4) upper end and be welded on pipe (3.3) lower end that the middle part is the rectangular pyramid body, the lower end is a screw-rod structure, is bearing in side door plate (6) outside.

7. according to the described railway freight gondola car door lock assembly of claim 1, it is characterized in that handle (3.5) head has a square hole that mates with connecting axle (3.4) middle part rectangular pyramid body, the handle head is enclosed within the connecting axle middle part, the I-shaped structure that reduces gradually for the cross section in the middle of the handle, the handle afterbody is the circular shaft shape, and head and afterbody are crooked in opposite directions.