CN204279495U - Railway switch outer device - Google Patents
Railway switch outer device Download PDFInfo
- Publication number
- CN204279495U CN204279495U CN201420808788.4U CN201420808788U CN204279495U CN 204279495 U CN204279495 U CN 204279495U CN 201420808788 U CN201420808788 U CN 201420808788U CN 204279495 U CN204279495 U CN 204279495U
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- China
- Prior art keywords
- latch hook
- locking
- accommodating hole
- boss structure
- hook
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Abstract
The utility model relates to a kind of railway switch outer device, comprise latch hook, latch hook front end forms boss structure, the inner side of this boss structure is inclined-plane, and latch hook rear end is formed to the bending hook formation of upper inner, and boss structure inside, latch hook front end has accommodating hole, the aperture, front end of accommodating hole is opened on latch hook medial slope, accommodating hole is built with butterfly spring, and butterfly spring front end connects push rod, and push rod end connects roller.Friction of rolling is changed into by cliding friction between latch hook and locking iron, reduce the friction of latch hook and locking iron, for ensureing the unblock of external lock and the smooth and easy of locking, reducing the work capacity of field service personnel, can also ensure that supplementary effect is played in the adjustment of switch closure power.
Description
Technical field
The utility model relates to the latch hook in a kind of railway switch outer device, particularly outer locking device.
Background technology
Outer locking device domestic at present, keystone configuration is made up of locking rod, latch hook, locking iron, locking frame.It is the boss on inclined-plane that locking rod upper surface is formed with a front end, and latch hook bottom surface has the groove that the front end corresponding with the boss on locking rod is inclined-plane.Latch hook front end forms boss structure, and the inner side of this boss structure is inclined-plane, and latch hook rear end is formed to the bending hook formation of upper inner.Stock rail both sides have tongue to have and locking frame respectively, and the hook formation of latch hook rear end withstands tongue waist, with locking iron interior side contacts bottom locking frame, with latch hook leading inside contact of incline plane outside locking iron.During locking, locking rod is under switch machine drives, and by the boss band moveable lock hook on locking rod and tongue to left movement, after tongue and stock rail are closely connected, moveable lock hook upward movement is with in continuation, latch hook inclined-plane and locking iron contact of incline plane locked.During unblock, locking rod moves right, and because gravity makes latch hook inclined-plane separate with locking iron inclined-plane, is continued to move right make stock rail separate releasing process with tongue after latch hook moves downward by locking rod.
Latch hook directly contacts with locking iron, the distortion that the factors such as the abrasion between locking iron and latch hook, the temperature difference cause, and outer locking device can be caused to unlock or the jam of locking.Constantly can only carry out the oiling work of external lock for solving the service personnel at jam problem scene, can ensure that outer locking device unlocks and locking smooth and easy, the labour intensity of field service personnel is large on schedule.In addition, closely connected intensity (closely connected power) the bad grasp of external lock track switch, adjustment power great Yi causes not unlocking of external lock, and adjustment power is little just easily causes the not closely connected of track switch.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of railway switch outer device avoiding unblock and locking jam between latch hook and locking iron.
For solving above technical matters, the utility model has done further improvement on the basis of existing technology.
A kind of railway switch outer device of the utility model, comprise latch hook, latch hook front end forms boss structure, the inner side of this boss structure is inclined-plane, and latch hook rear end is formed to the bending hook formation of upper inner, and boss structure inside, latch hook front end has accommodating hole, the aperture, front end of accommodating hole is opened on latch hook medial slope, accommodating hole is built with butterfly spring, and butterfly spring front end connects push rod, and push rod end connects roller.
By above improvement, between latch hook and locking iron, change friction of rolling into by cliding friction.During locking, locking rod under switch machine drives, by the boss band moveable lock hook on locking rod and tongue to left movement, when tongue and stock rail closely connected after, continue band moveable lock hook upward movement, roller scrolls up on locking iron along inclined-plane, latch hook inclined-plane and locking iron contact of incline plane locked.During unblock, locking rod moves right, and roller still rolls along inclined-plane, and latch hook inclined-plane is separated with locking iron inclined-plane, is continued to move right to make stock rail separate releasing process with tongue after latch hook moves downward by locking rod.
As the preferred technical scheme of one, screw plug is equipped with in the aperture, front end of described accommodating hole, and the front support of butterfly spring is in screw plug end.The through hole of to be accommodating hole be on the basis of this structure lateral surface in a through latch hook boss structure, screw plug is contained in aperture, accommodating hole front end, can change, and is also convenient to change butterfly spring and push rod.
The utility model is according to the operation characteristic of railway switch outer device, design the external lock latch hook of band roller, (1) reducing the friction of latch hook and locking iron, for ensureing the unblock of external lock and the smooth and easy of locking, avoiding the unblock because the temperature difference and wearing and tearing cause and locking difficulty.(2) butterfly spring can ensure suitable switch closure power, ensures that the gap between stock rail and tongue meets the requirements.(3) do not need to use lubricating oil in a large number, decrease the work capacity of field service personnel.(4) due to the buffer action of butterfly spring, the wearing and tearing of copper sheathing in pin-and-hole on the hook formation of latch hook rear end are decreased.(5) ensure that the normal work of indication notch.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of locking rod front end.
In figure, 1-latch hook, 2-butterfly spring, 3-push rod, 4-roller, 5-screw plug, 6-locking rod, 7-stock rail, 8-tongue, 9-locking frame, 10-locking iron, 11-tab, 12-adjusting pad.
Detailed description of the invention
In order to make those skilled in the art better understand the utility model, below in conjunction with accompanying drawing, explanation clear, complete is further done to the utility model.
Railway switch outer device as shown in Figure 1, it is the boss on inclined-plane that locking rod 6 upper surface is formed with a front end, and latch hook 1 bottom surface has the groove that the front end corresponding with the boss on locking rod 6 is inclined-plane.Latch hook 1 front end forms boss structure, and the inner side of this boss structure is inclined-plane, and latch hook 1 rear end is formed to the bending hook formation of upper inner.Stock rail 7 both sides have tongue 8 to have and locking frame 9 respectively, and the hook formation of latch hook 1 rear end withstands tongue 8 waist, with locking iron 10 interior side contacts bottom locking frame 9, with latch hook 1 leading inside contact of incline plane outside locking iron 10.Locking frame 9 contact surface with locking iron 10 is provided with tab 11, the contact surface of tongue 8 waist and latch hook 1 rear portion hook-shape structure is provided with adjusting pad 12.
As shown in Figure 2, boss structure inside, latch hook 1 front end has accommodating hole, the aperture, front end of accommodating hole is opened on latch hook 1 medial slope, aperture, front end is expanding structures relative to other parts of accommodating hole, this expanding structure should be enough to hold roller 4, the driving surface of roller 4 exceeds latch hook 1 medial slope 2mm, and that is the stroke of roller 4 is 2mm.Accommodating hole is built with butterfly spring 2, and butterfly spring 2 front end connects push rod 3, and push rod 3 end connects roller 4.Roller on latch hook 1 with move on locking iron 10 along inclined-plane, roller 4 under the effect of butterfly spring 2 all the time with the contact of incline plane of locking iron, switch closure power is regulated simultaneously.
When accommodating hole is through hole, screw plug 5 is equipped with in the aperture, front end of accommodating hole, and the front support of butterfly spring 2 is in screw plug 5 end.
The claimed scope of the utility model is not limited to above detailed description of the invention; to those skilled in the art; the utility model can have various deformation and change, all in design of the present utility model and any amendment, the improvement done within principle be equal to replacement and all should be included within protection domain of the present utility model.
Claims (2)
1. a railway switch outer device, comprise latch hook (1), latch hook front end forms boss structure, the inner side of this boss structure is inclined-plane, and latch hook (1) rear end is formed to the bending hook formation of upper inner, it is characterized in that: boss structure inside, latch hook (1) front end has accommodating hole, the aperture, front end of accommodating hole is opened on latch hook (1) medial slope, accommodating hole is built with butterfly spring (2), and butterfly spring (2) front end connects push rod (3), and push rod (3) end connects roller (4).
2. railway switch outer device according to claim 1, body characteristics is: screw plug (5) is equipped with in the aperture, front end of described accommodating hole, and the front support of butterfly spring (2) is in screw plug (5) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420808788.4U CN204279495U (en) | 2014-12-19 | 2014-12-19 | Railway switch outer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420808788.4U CN204279495U (en) | 2014-12-19 | 2014-12-19 | Railway switch outer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204279495U true CN204279495U (en) | 2015-04-22 |
Family
ID=52862682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420808788.4U Active CN204279495U (en) | 2014-12-19 | 2014-12-19 | Railway switch outer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204279495U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016465A (en) * | 2016-11-03 | 2018-05-11 | 西门子信号有限公司 | External locking device |
| CN110160679A (en) * | 2019-05-08 | 2019-08-23 | 北京全路通信信号研究设计院集团有限公司 | A kind of railroad switch point closure power detection method and system |
| CN110588716A (en) * | 2019-09-12 | 2019-12-20 | 太原市京丰铁路电务器材制造有限公司 | Rail pillow type outer locking device and mounting device matched with same |
-
2014
- 2014-12-19 CN CN201420808788.4U patent/CN204279495U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016465A (en) * | 2016-11-03 | 2018-05-11 | 西门子信号有限公司 | External locking device |
| CN110160679A (en) * | 2019-05-08 | 2019-08-23 | 北京全路通信信号研究设计院集团有限公司 | A kind of railroad switch point closure power detection method and system |
| CN110588716A (en) * | 2019-09-12 | 2019-12-20 | 太原市京丰铁路电务器材制造有限公司 | Rail pillow type outer locking device and mounting device matched with same |
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant |