CN2361663Y - Locking device for external locking board notch - Google Patents

Abstract

The utility model relates to a locking device for an external locking board notch, which comprises a dovetail rail which is connected with a tongue, the tongue, a basic rail and a locking board. A hook locking device which can be locked and unlocked is arranged at the notch position of the locking board. Elements of the hook locking device are filled and leveled up or projected out of the notch of the locking board. The device makes the tight sticking state of the tongue and the basic rail of an accelerating switch kept under the condition of the failure of an interlocked relationship, which ensures the safety transportation of a high-speed train.

Description

A kind of exterior lock plate breach locking device

The utility model belongs to the railway equipment therefor, relates in particular to outer locking track switch.

Old railroad turnout adopts manually with the firm mode of screw and makes tongue and stock rail closely connected, but at present because the quickening of train speed, adopted acclerating road switch, the structure of this acclerating road switch and old railroad turnout is inequality, adopt outer locking track switch more, therefore also do not have on the acclerating road switch a kind of reliable way to prevent that track switch from causing the danger of tongue opening because of the interlock connection inefficacy at present.

The purpose of this utility model then provides and a kind ofly makes outer locking track switch under the situation that interlock connection lost efficacy, tongue and the also retainable exterior lock plate breach of stock rail close-fitting state locking device.

The present invention seeks to be achieved through the following technical solutions.In locking plate indentation, there the hook lock device of an energy locking and open-type is arranged, locking plate breach is filled and led up or protruded in to the parts of hook lock device.

Even outside the indentation, there of locking track switch shape locking plate installed additional can locking and the external lock hook lock device of open-type after track switch place interlock connection lost efficacy, as long as with this hook lock device locking, when locking plate during to counteragent, dovetail iron can not fall in the breach of locking plate, therefore external lock can not release, make tongue and stock rail close-fitting state to keep, what make that train can safety passes through track switch, when the track switch interlock connection just often, open hook lock device, and take out from locking plate indentation, there, the locking plate at track switch place can be transferred the position again on request under the effect of pulling motor, therefore this track switch has advantage both easy to adjust, safe in utilization again.

Be described further below in conjunction with accompanying drawing and embodiment.

Fig. 1 is the vertical view of embodiment 1;

Fig. 2 is added the hook lock device front view by exterior lock plate indentation, there among the embodiment 1:

Fig. 3 be among Fig. 2 A-A to half sectional view;

Fig. 4 is the vertical view of embodiment 2;

Fig. 5 is the front view of exterior lock plate hook lock device that indentation, there adds among the embodiment 2;

Fig. 6 be among Fig. 5 B-B to sectional view;

Fig. 7 is the vertical view of the active block stop of hook lock device among the embodiment 2.

Embodiment 1: in the present embodiment, the coattail board 4 that is positioned at stock rail 2 outsides is connected with tongue 1 with locking plate 3, has located a hook lock device 5 at the breach 3 ' of locking plate 3.The end of hook lock device 5 middle shell 5-4 has protecgulum 5-2, and the other end has the block 5-5 that is connected as a single entity with housing, and its last plane is higher than 1/2 of housing 5-4 height.There is cover plate 5-1 in housing bottom, in the middle of the housing latch hook block 5-9 is arranged, and respectively there is a latch hook 5-10 on its both sides, and this two latch hook 5-10 is a symmetry with the center line of latch hook block 5-9 respectively.Each latch hook 5-10 sidepiece has a spring 5-11 to join with it, cover plate 5-1 center fixed has hook 5-12, the position of this hook 5-12 in housing should make the center line of its center line and latch hook block 5-9 coincide, that matches with hook lock device has a key, have on the protecgulum 5-2 of hook lock device 5 one with the corresponding keyhole in latch hook block 5-9 position.When locking states, place above the housing 5-4 of hook lock device 5 on the last plane of the locking plate 3 that breach 3 ' locates, front shroud 5-2 is positioned at a side of locking plate 3, block 5-5 is positioned at the opposite side of locking plate 3, and it locates breach 3 ' to fill and lead up, and the hook 5-12 of cover plate packs between the two latch hook 5-10.And hooked by latch hook 5-10, at this moment tongue 1 will keep making dovetail iron 4 can not enter breach 3 ' with the close-fitting state of stock rail 2, when needing to adjust track switch, insert in the keyhole with key, hook 5-12 is deviate from from latch hook, remove cover plate 5-1, take off hook lock device and get final product.

Embodiment 2: in the present embodiment, it is identical with embodiment 1 that hook lock device 5 is contained in the position of locking plate.

But the block of this hook lock device 5 is made up of fixed stop 5-5a and active block stop 5-5b, fixed stop 5-5a and housing 5-4 are fixed together, double-screw bolt 5-7 passes fixed stop 5-5a and is fixed on the housing 5-4, porose in the middle of the active block stop 5-5b, for the ease of adjusting the position of active block stop 5-5b, this hole can be made microscler, active block stop 5-5b passes bolt and by nut 5-6 it and fixed stop 5-5a is fixed together, there is the profile of tooth that can work in coordination active block stop 5-5b and fixed stop 5-5a intersection, so that they are in conjunction with firm, active block stop 5-5b has inclined-plane M, and the spring 5-11 that joins with latch hook 5-10 squeezes spring as shown in Figure 6.Other structure is identical with embodiment 1.The hook lock device of this structure is behind locking, and block protrudes in block 5-5 inclined-plane can more fully be contacted with the inclined-plane of groove, has stoped the action of coattail board.

Block can be made and face directly or have a plurality of inclined-planes in the utility model, all can play the effect that stops the coattail board action, and hook lock device also can adopt electronic lock or other can play the structure of locking, and these are all at the row of protection.

Claims (3)

1. exterior lock plate breach locking device, comprise dovetail iron and locking plate that tongue, stock rail link to each other with tongue, it is characterized in that: in the indentation, there of locking plate the hook lock device of an energy locking and unlatching is arranged, locking plate breach is filled and led up or protruded in to the parts of hook lock device during locking.

2. exterior lock plate breach locking device according to claim 1, it is characterized in that: an end of described hook lock device housing is the front shroud that has keyhole, the other end is a block, bottom is the cover plate that is fixed with hook, two latch hooks that occupy latch hook block both sides respectively are housed in the housing, each latch hook side has a spring, and cover plate is positioned at below the locking plate during locking, and the hook that cover plate is fixed together places between two latch hooks.

3. exterior lock plate breach locking device according to claim 2, it is characterized in that: described block is made up of fixed stop and active block stop, and there is the profile of tooth that can work in coordination together both intersections, and the inclined-plane is arranged on the active block stop, and this inclined-plane contacts with inclined-plane in the dovetail iron during locking.

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