CN102278021B

CN102278021B - Door lock device of railway freight open wagon

Info

Publication number: CN102278021B
Application number: CN 201110099698
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: 2013-10-30
Anticipated expiration: 2031-04-20
Also published as: CN102278021A

Abstract

The invention belongs to the machinery field and relates to a door lock device of a railway freight open wagon, and in particular relates to a side-opening door of the railway freight open wagon. The door lock device of the railway freight open wagon comprises a lock box assembly, a lock rod assembly and a handle holder, wherein the lock box assembly is mounted on the outer side edge of a side door plate, while the handle holder is mounted at the bottom right corner of the side door plate; and an upper door beam is arranged above the side door plate. The door lock device is characterized in that a vertical shaft is fixed to the upper door beam and a sleeve is nested to the vertical shaft; the lock box assembly includes a lock box; an upper supporting plate, a lower supporting plate and an internal supporting plate each having a circular hole are welded to the two ends of the lock box and the inner space of the lock box, respectively; besides, the lock rod assembly comprises a lock shaft, wherein a circular tube is sleeved outside the lock shaft; after the circular tube penetrates through the circular holes of the upper supporting plate, the lower supporting plate and the internal supporting plate, the upper end of the circular tube is located on the upper supporting plate, while the lower end of the circular tube is located in the lock box; a lock hook is mounted on the upper end of the lock shaft, while a handle is mounted on the lower end of the lock shaft through a connecting shaft; and the lower end of the connecting shaft is supported outside the side door plate. The door lock in the invention is safe, reliable, and easier to operate.

Description

A kind of door lock device of railway freight open wagon

Technical field

The invention belongs to mechanical field, relate to a kind of door lock device of railway freight open wagon, particularly relate to a kind of railway freight gondola car side lock that opens the door.

Background technology

Railway freight gondola car is mainly used in loading and transporting 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 arranges an oblate tapered end, the lower end is fixedly connected with one perpendicular to the operating grip of locking bar axial line, and locking bar is installed in the side door plate outside by spring and gripper shoe; In addition, the curb girder above side is opened the door is provided with a rectangular lockhole.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, then spurs straight down locking bar, and this moment, tapered end broke away from lockhole, release.

During this locking device work, need to spur up and down, horizontally rotate two kinds of actions of locking bar.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 larger 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 at the supporting seat place, be difficult to rotate or pulling, cause the difficulty of unblanking, even the consequence that can't unblank.

Summary of the invention

The problem to be solved in the present invention is exactly to provide for 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 that lock box composition, locking bar form and the handgrip deck, and lock box forms the outer ledge that is installed in side door plate, and the handgrip deck is installed in the side door plate lower right corner, and the side door plate top is the beam of calling.Its key technology is at the fixedly vertical shaft of beam of calling, and at the vertical shaft cover sleeve pipe is arranged; Lock box forms and to have lock box, at the lock box two ends and the lock box inner chamber be welded with respectively upper backup pad, lower supporting plate and inner support plate with circular hole; Locking bar forms and comprises lock shaft, the lock shaft overcoat has pipe, after pipe passes the circular hole of upper backup pad, lower supporting plate and inner support plate, 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 the lower end is by the connecting axle mounting handle, and the connecting axle lower end is bearing in the side door plate outside.

The present invention compared with prior art has following beneficial effect:

1, the present invention 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, lock box 4.1, upper backup pad 4.2 provide sufficient rotational restraint for locking bar, and from latch hook 3.1 very close to, reduced the flexural deformation of locking bar;

3, be provided with sleeve pipe 2 at 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 intensity and the reliability of handle;

5, the present invention 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 present invention on opening door at open vehicle side;

Fig. 2 is the partial view on top of the present invention;

Fig. 3 is for locking bar of the present invention forms structural representation;

Fig. 4 is connecting axle structure schematic diagram of the present invention;

Fig. 5 is for lock box of the present invention forms structural representation;

The specific embodiment

Referring to Fig. 1 to Fig. 5, the present invention includes 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 at the fixedly vertical shaft 1 of beam 7 of calling, 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 to the doorstep beam 7 belows, 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 pipe, two chamfers or rounding, and sleeve pipe 2 can be around vertical shaft 1 rotation.Lock box forms 4 and has lock box 4.1, at lock box 4.1 two ends and the lock box inner chamber be welded with respectively upper backup pad 4.2, lower supporting plate 4.4 and inner support plate 4.3 with circular hole, lock box 4.1 is that the cross section is trapezoidal crimping plate, upper backup pad 4.2, lower supporting plate 4.4 and inner support plate 4.3 are the trapezoidal flat board with circular hole, inner support plate 4.3 uniform weldings are at 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 forms 3 and comprises lock shaft 3.2, and lock shaft 3.2 overcoats have pipe 3.3, and after pipe 3.3 passed the circular hole of upper backup pad, lower supporting plate and inner support plate, 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, arc surface and sleeve pipe 2 outer wall Cylindrical Surfaces Contacts; The lock shaft lower end is by connecting axle 3.4 mounting handles 3.5, 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 rectangular pyramid, and the connecting axle lower end is 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 pyramids, 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 invention 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, until handle end enters handgrip deck 5, 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 vehicle 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 band moveable lock hook 3.1 sideway swivels outside the compartment by locking bar, and turn to the position that latch hook can not run into sleeve pipe 2 when opening the door, discharge side door plate 6 to the rotational freedom in the outside, compartment, the realization car door is unblanked.

Claims

1. door lock device of railway freight open wagon, comprise that lock box forms (4), locking bar forms (3) and handgrip deck (5), lock box forms 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 at the fixedly vertical shaft (1) of beam (7) of calling, at vertical shaft (1) cover sleeve pipe (2) is arranged, 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, sleeve pipe (2) is pipe, sleeve pipe (2) two chamfer or roundings; Lock box forms (4) and has lock box (4.1), at lock box (4.1) two ends and the lock box inner chamber be welded with respectively upper backup pad (4.2), lower supporting plate (4.4) and inner support plate (4.3) with circular hole, lock box (4.1) is that cross section is trapezoidal crimping plate, upper backup pad (4.2), lower supporting plate (4.4) and inner support plate (4.3) are the trapezoidal flat board with circular hole, following vertical 1 set square (4.5) that connects of lower supporting plate (4.4), inner support plate (4.3) uniform welding is at lock box (4.1) inner chamber; Locking bar forms (3) and comprises lock shaft (3.2), lock shaft (3.2) overcoat has pipe (3.3), pipe (3.3) passes upper backup pad, the circular hole of lower supporting plate and inner support plate, 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, latch hook (3.1) is crescent, there is one section arc surface in the inboard stage casing of latch hook, the latch hook root has a circular hole, and the circle at arc surface place is concentric with circular hole, arc surface and sleeve pipe (2) outer wall Cylindrical Surfaces Contact, the lower end is by connecting axle (3.4) mounting handle (3.5), connecting axle (3.4) upper end is inserted and is welded on pipe (3.3) lower end, and the middle part is rectangular pyramid, and the lower end is screw-rod structure, be bearing in side door plate (6) outside, handle (3.5) head has a square hole that mates with connecting axle (3.4) middle part rectangular pyramid, and the handle head is enclosed within 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.