CN208730993U - A kind of bus door anti-drop device - Google Patents
A kind of bus door anti-drop device Download PDFInfo
- Publication number
- CN208730993U CN208730993U CN201821377329.XU CN201821377329U CN208730993U CN 208730993 U CN208730993 U CN 208730993U CN 201821377329 U CN201821377329 U CN 201821377329U CN 208730993 U CN208730993 U CN 208730993U
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- Prior art keywords
- pulley
- anticreep backstop
- anticreep
- backstop
- drop device
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Abstract
A kind of bus door anti-drop device, belongs to railway freight-car technical field, and in particular to a kind of anti-drop device of car door.It has pedestal, and key technology is to install the square that the cross sectional shape in the middle part of anticreep backstop anticreep backstop is four rounding of angle by gusset on pedestal, and end uses variable section structure, and section is gradually reduced from centre toward both ends, constitutes the anticreep backstop of fusiformis shape.The edge of gusset is globoidal structure.The middle part of the anticreep backstop is equipped with confined planes, and end is equipped with guide surface.The utility model has the beneficial effect that the cross sectional shape in the middle part of anticreep backstop is the square of four rounding of angle, assumes diamond in shape and is placed on the V-type face of pulley, and the two cooperation is close；The confined planes and pulley V-type face contact of anticreep backstop, the vertical and transverse shifting of limitation car door is realized by limitation pulley, improves pulley service life, guarantees vehicle operational safety.
Description
Technical field
A kind of bus door anti-drop device, belongs to railway freight-car technical field, and in particular to a kind of anti-drop device of car door.
Background technique
Existing railway freight box wagon mainly uses cliding door, installs pulley in bottom of door, installs on chassis curb girder
Guide rail is rolled by pulley on guide rail to realize that car door is mobile.In vehicle operation, due to guideway irregularity, vehicle
Vibration etc. factors influence, pulley can on guide rail vertical vibration, easily cause car door to fall off when amplitude is bigger than normal.Currently, solving this
The major way of problem is the vertical relative motion for limiting car door and guide rail by installing anti-off board on car door.But the structure
Structural strength is weaker, easily-deformable, poor reliability.
Summary of the invention
It is good that problem to be solved in the utility model provides a kind of structural strength aiming above insufficient, high reliablity,
It can guarantee vehicle operational safety, improve the car door anti-drop device of pulley service life.Its technical solution is as follows:
It has pedestal, and key technology is to install anticreep backstop by gusset on pedestal.
Cross sectional shape in the middle part of the anticreep backstop is the square of four rounding of angle, and end uses variable section structure, section
It is gradually reduced from centre toward both ends, constitutes the anticreep backstop of fusiformis shape.
The edge of the gusset is globoidal structure.
The middle part of the anticreep backstop is equipped with confined planes, and end is equipped with guide surface.
Compared with prior art, the utility model has the beneficial effect that
1, the cross sectional shape in the middle part of the utility model anticreep backstop is the square of four rounding of angle, assumes diamond in shape and is placed on pulley
V-type face on, the two cooperation is close；The confined planes and pulley V-type face contact of anticreep backstop, limitation is realized by limitation pulley
The vertical and transverse shifting of car door, car door beats, even falls off when preventing vehicle from running, and improves pulley service life, guarantees vehicle
Operational safety.
2, the guide surface of fusiformis shape anticreep backstop and pulley V-type face contact, during closing of the door, due to gravity etc.
When car door being caused to tilt, pulley center line is not overlapped with anticreep backstop center line, can be modified by the guide surface to it,
So that pulley is smoothly moved to limit body.
Detailed description of the invention
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model main view；
Fig. 3 is the A-A cross-sectional view of Fig. 2；
Fig. 4 is the utility model usage state diagram；
Fig. 5 is Fig. 4 left view.
It is identified in figure:
1a- pedestal, 1b- gusset, 1c- anticreep backstop, 1d- confined planes, 1e- guide surface.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawings and examples, but is not used to limit
The scope of the utility model processed.
As shown in fig. 1~fig. 5, the utility model has pedestal 1a, and key technology is on pedestal 1a by gusset 1b
Anticreep backstop 1c is installed.
Cross sectional shape in the middle part of the anticreep backstop 1c is the square of four rounding of angle, and end uses variable section structure, is cut
Face is gradually reduced from centre toward both ends, constitutes the anticreep backstop of fusiformis shape.
The edge of the gusset 1b is globoidal structure, to guarantee its structural strength.
The middle part of the anticreep backstop 1c is equipped with confined planes 1d, and end is equipped with guide surface 1e.
In use, car door anti-drop device is mounted on bottom side rail 2, pedestal 1a is contacted with bottom side rail, anticreep backstop 1c and vehicle
The pulley 3 of door contacts, and the cross sectional shape in the middle part of anticreep backstop 1c is the square of four rounding of angle, assumes diamond in shape in the middle part of anticreep backstop 1c
It is placed on the V-type face of pulley 3, so that anti-drop device is located at the surface of pulley when closing of the door.When work, anticreep backstop
Confined planes 1d and pulley V-type face contact limit the vertical and transverse shifting of car door by limitation pulley, when preventing vehicle from running
Car door bounce even falls off, and improves pulley service life, guarantees vehicle operational safety；The guide surface 1e of the anticreep backstop with
Pulley V-type face contact during closing of the door, causes car door to tilt due to gravity etc., pulley center line and anticreep backstop
Center line is not overlapped, and can be modified by the guide surface 1e to it, so that pulley is smoothly moved to limit body.
Claims (4)
1. a kind of bus door anti-drop device has pedestal (1a), it is characterized in that being installed on pedestal (1a) by gusset (1b)
Anticreep backstop (1c).
2. a kind of bus door anti-drop device according to claim 1, it is characterised in that cutting in the middle part of anticreep backstop (1c)
Face shape is the square of four rounding of angle, and end uses variable section structure, and section is gradually reduced from centre toward both ends, constitutes shuttle shape
The anticreep backstop of shape.
3. a kind of bus door anti-drop device according to claim 1, it is characterised in that the edge of the gusset (1b) is
Globoidal structure.
4. a kind of bus door anti-drop device according to claim 1, it is characterised in that in the anticreep backstop (1c)
Portion is equipped with confined planes (1d), and end is equipped with guide surface (1e).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821377329.XU CN208730993U (en) | 2018-08-26 | 2018-08-26 | A kind of bus door anti-drop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821377329.XU CN208730993U (en) | 2018-08-26 | 2018-08-26 | A kind of bus door anti-drop device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208730993U true CN208730993U (en) | 2019-04-12 |
Family
ID=66031096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821377329.XU Active CN208730993U (en) | 2018-08-26 | 2018-08-26 | A kind of bus door anti-drop device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208730993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109131394A (en) * | 2018-08-26 | 2019-01-04 | 中车眉山车辆有限公司 | A kind of bus door anti-drop device |
-
2018
- 2018-08-26 CN CN201821377329.XU patent/CN208730993U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109131394A (en) * | 2018-08-26 | 2019-01-04 | 中车眉山车辆有限公司 | A kind of bus door anti-drop device |
| CN109131394B (en) * | 2018-08-26 | 2024-03-19 | 中车眉山车辆有限公司 | Novel car door anti-drop device |
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