CN209704254U - A kind of railcar manually operated door rotary locking mechanism - Google Patents
A kind of railcar manually operated door rotary locking mechanism Download PDFInfo
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- CN209704254U CN209704254U CN201921800506.5U CN201921800506U CN209704254U CN 209704254 U CN209704254 U CN 209704254U CN 201921800506 U CN201921800506 U CN 201921800506U CN 209704254 U CN209704254 U CN 209704254U
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- shift fork
- axis
- rotation lock
- railcar
- manually operated
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Abstract
The utility model relates to technical field of rail traffic, specially a kind of railcar manually operated door rotary locking mechanism, including rotation lock support, shift fork shaft is connected on the rotation lock support, axis A and the axis B through rotation lock support and shift fork shaft are provided on the rotation lock support, there are upper shift fork and lower shift fork by self lubrication bearing switching at the top of the lateral wall of the axis A and axis B, the one side of the upper shift fork has been disposed proximate to ratchet slot A and ratchet slot B, and the one side of the lower shift fork is provided with pawl.The railcar manually operated door rotary locking mechanism, by the mechanical structure form for changing drivers' cab door lock, telescopic lock bolt structure before is changed to rotary type locking, upper shift fork, the ratchet slot of lower shift fork, pawl structures realize 2 grades of lockings of car door, to improve the safety of vehicle operation, and compact-sized, it is simple and practical, it is easy to maintenance, tests prove that being a kind of reliable and stable mechanical structure, application range is than wide.
Description
Technical field
The utility model relates to technical field of rail traffic, specially a kind of railcar manually operated door rotary locking mechanism.
Background technique
With the quickening of Urbanization in China, urban population increases year by year, and the pressure of urban public transport increases increasingly.
In recent years, subterranean railway and railway transportation equipment achieved significant progress, and subway has become during each megapolitans go on a journey
The important vehicles achieve huge economic benefit and social benefit.When increasing, stop with railcar rate of traffic flow
Between shorten, hypotelorism of dispatching a car, the speed of service are speeded, transport objective quantity increased significantly so that being mentioned to vehicle driving safety in operation
Higher requirement is gone out.Drivers' cab is the core position of entire vehicle control system part, the operational safety concerning entire vehicle.
It is known that all car doors must be closed and be locking, and wherein can cab door reliable in subway traveling
Locking directly affects the driver even personal safety of all passengers.After how research guarantees that cab door is closed, door lock is enough
Safe and reliable, it has a very important significance.
Existing cab door lock structure is extension type lock bolt structure, realizes vehicle by lock tongue, spring, door knob component
The locking of door.The shortcoming of such structure has two o'clock: for the door closing force of 1 manually operated door because of people, door closing force is excessive to cause lock tongue
It is very big with the impact of door knob component, it is easy to lock tongue be caused to be broken；2 are limited to reasons in structure, and such structure is only able to achieve driver
The single-stage locking of room door, if locking failure occurs in running vehicle cab door, it will the safety for jeopardizing permutation vehicle is deposited
In certain hidden danger.Therefore a kind of drivers' cab door lock that 2 grades of lockings can be achieved, can be with the peace for improving vehicle operation of highly significant
Quan Xing.
Utility model content
The purpose of this utility model is to provide a kind of railcar manually operated door rotary locking mechanisms, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of railcar manually operated door rotary locking
Mechanism, including rotation lock support are connected with fork shaft on the rotation lock support, are provided with and run through on the rotation lock support
It is transferred at the top of the lateral wall of the axis A and axis B, the axis A and axis B of rotation lock support and fork shaft by self lubrication bearing on having
Shift fork and lower shift fork, the upper shift fork and lower shift fork pass through left-handed spring respectively and dextrorotation spring is connected with fork shaft, described
The one side of upper shift fork has been disposed proximate to ratchet slot A and ratchet slot B, and the one side of the lower shift fork is provided with pawl, the spine
Pawl is matched with ratchet slot A and ratchet slot B, and upper shift fork one end is provided with block on the rotation lock support, described above to dial
Fork is matched with block.
Preferably, axle sleeve is provided between lower shift fork and dextrorotation spring between the upper shift fork and left-handed spring.
Preferably, the two sides of the block close to upper shift fork is provided with rubber mat.
Compared with prior art, the utility model has the beneficial effects that the railcar manually operated door rotary locking mechanism, leads to
Cross the mechanical structure form for changing drivers' cab door lock, telescopic lock bolt structure before be changed to rotary type locking, upper shift fork, under
Ratchet slot, the pawl structures of shift fork realize 2 grades of lockings of car door, to improve the safety of vehicle operation, and structure
It is compact, it is simple and practical, it is easy to maintenance, tests prove that being a kind of reliable and stable mechanical structure, application range is than wide.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the car door unlocked state location drawing of the utility model；
Fig. 3 is the location drawing of realization 1 grade of locking states of car door of the utility model；
Fig. 4 is the location drawing of realization 2 grades of locking states of car door of the utility model.
In figure: 1, rotation lock support, 2, shift fork shaft, 3, left-handed spring, 4, upper shift fork, 5, axis A, 6, lower shift fork, 7, axis
B, 8, self lubrication bearing, 9, axle sleeve, 10, dextrorotation spring, 11, rubber mat, 12, ratchet slot A, 13, ratchet slot B, 14, pawl, 15, gear
Block.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of railcar manually operated door rotary locking machine
Structure, including rotation lock support 1 are connected with fork shaft 2 on rotation lock support 1, use the fixed fork shaft 2 of sunk screw, rotation
Axis A5 and the axis B7 through rotation lock support 1 and fork shaft 2, the lateral wall top of axis A5 and axis B7 are provided on twist lock support 1
There are upper shift fork 4 and lower shift fork 6 in portion by the switching of self lubrication bearing 8, and self lubrication bearing 8 and shift fork shaft 2 are hole axle clearance fit,
Self lubrication bearing 8 and upper shift fork 4, lower shift fork 6 are hole axle tight fit, and the end of axis A5 and axis B7 are provided with washer and locking screw
Mother, to limit the axial float of upper shift fork 4, lower shift fork 6, upper shift fork 4 and lower shift fork 6 pass through left-handed spring 3 and dextrorotation respectively
Spring 10 is connected with fork shaft 2, is provided between lower shift fork 6 and dextrorotation spring 10 between upper shift fork 4 and left-handed spring 3
Axle sleeve 9, axle sleeve 9 are non-metallic material, are placed between left-handed spring 3 and dextrorotation spring 10 and upper shift fork 4, lower shift fork 6 and avoid a left side
It revolves spring 3 and dextrorotation spring 10 is worn, be clearance fit with shift fork shaft 12, the one side of upper shift fork 4 has been disposed proximate to ratchet
Slot A12 and ratchet slot B13, the one side of lower shift fork 6 is provided with pawl 14, pawl 14 and ratchet slot A12 and ratchet slot B13 matches
Close, rotation direction when ratchet slot and pawl work it is identical, it can be achieved that cab door locking, close to upper group on rotation lock support 1
It pitches 4 one end and is provided with block 15, upper shift fork 4 is matched with block 15, and the two sides of block 15 close to upper shift fork 4 is provided with rubber mat
11, rubber mat 11 plays noise reduction, buffer function.
Working principle:
Referring to attached drawing 2, upper shift fork 4, lower shift fork 6 are rotated, left-handed spring 3, dextrorotation spring 10 are completed to pre-tighten, by rubber mat 11
It is bonded on block 15；
Shutdown act when, door-plate hit upper shift fork 4, upper shift fork 4, lower shift fork 6 under the action of door closing force, spring torsion,
It rotates counterclockwise, pawl 14, which is caught in ratchet slot B13, completes 1 grade of locking；Continue at closing time in shutdown action process
Upper shift fork 4, lower shift fork 6 rotate under the action of the power of generation, and pawl 14, which is caught in ratchet slot A12, completes 2 grades of lockings.Door opening action
When, external force is rotated clockwise under external force, spring torsion effect in lower shift fork 6, upper shift fork 4, lower shift fork 6, is completed
Unlock.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (3)
1. a kind of railcar manually operated door rotary locking mechanism, it is characterised in that: including rotation lock support (1), the rotation lock
It is connected on support (1) fork shaft (2), is provided on the rotation lock support (1) and turns through rotation lock support (1) and fork
The axis A(5 of axis (2)) and axis B(7), the axis A(5) and axis B(7) lateral wall at the top of by self lubrication bearing (8) switching have on
Shift fork (4) and lower shift fork (6), the upper shift fork (4) and lower shift fork (6) pass through left-handed spring (3) and dextrorotation spring (10) respectively
It is connected with fork shaft (2), the one side of the upper shift fork (4) has been disposed proximate to ratchet slot A(12) and ratchet slot B(13), institute
The one side for stating lower shift fork (6) is provided with pawl (14), the pawl (14) and ratchet slot A(12) and ratchet slot B(13) match
It closes, is provided with block (15) on the rotation lock support (1) close to upper shift fork (4) one end, the upper shift fork (4) and block (15)
It matches.
2. a kind of railcar manually operated door rotary locking mechanism according to claim 1, it is characterised in that: the upper shift fork
(4) axle sleeve (9) are provided between lower shift fork (6) and dextrorotation spring (10) between left-handed spring (3).
3. a kind of railcar manually operated door rotary locking mechanism according to claim 1, it is characterised in that: the block
(15) rubber mat (11) are provided with close to the two sides of upper shift fork (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921800506.5U CN209704254U (en) | 2019-10-25 | 2019-10-25 | A kind of railcar manually operated door rotary locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921800506.5U CN209704254U (en) | 2019-10-25 | 2019-10-25 | A kind of railcar manually operated door rotary locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209704254U true CN209704254U (en) | 2019-11-29 |
Family
ID=68651894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921800506.5U Active CN209704254U (en) | 2019-10-25 | 2019-10-25 | A kind of railcar manually operated door rotary locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209704254U (en) |
-
2019
- 2019-10-25 CN CN201921800506.5U patent/CN209704254U/en active Active
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