CN207360328U - Spacious top formula railway freight-car and its protection head cover - Google Patents
Spacious top formula railway freight-car and its protection head cover Download PDFInfo
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- CN207360328U CN207360328U CN201721310669.6U CN201721310669U CN207360328U CN 207360328 U CN207360328 U CN 207360328U CN 201721310669 U CN201721310669 U CN 201721310669U CN 207360328 U CN207360328 U CN 207360328U
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- roller shutter
- head cover
- car
- reel
- protection head
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Abstract
The utility model provides a kind of spacious top formula railway freight-car and its protection head cover, and protection head cover includes the roller shutter box that the top side rail of car body is arranged on along the length over ends of body direction of spacious top formula railway freight-car；The reel being rotatably arranged in roller shutter box；The flexible roller shutter of car body top can be covered during stretching, flexible roller shutter is on reel；It is arranged on when flexible roller shutter is stretched out with the returning spring for making restoring force of the flexible roller shutter winding in reel, returning spring one end on reel, the other end is arranged on roller shutter box；By rotating roller shutter can be driven to be covered in the drive rod of car body top, the end of drive rod and car body is hinged, and its swinging end is connected with flexibility roller shutter head end.The flexible roller shutter dead weight of the utility model is smaller, directly drives drive rod and rotates the opening and closing that flexible roller shutter can be achieved, without supporting special purpose crane tool, the activity duration for protecting head cover opening and closing is shortened, so as to improve operating efficiency.
Description
Technical field
Railway transportation technology field is the utility model is related to, more specifically to a kind of the anti-of spacious top formula railway freight-car
Head cover is protected, the utility model further relates to a kind of spacious top formula railway freight-car with above-mentioned protection head cover.
Background technology
Spacious top formula railway freight-car is that have end wall, side wall and the vehicle without roof, be mainly used for transport be not afraid of be subjected to drenching with rain,
Avenge the bulk supply tariffs such as the coal soaked, ore, building materials, timber, steel.Due to no roof (or head cover), top formula railway freight-car is opened
When transporting coal when loose goods, under the effect of transportational process apoplexy power, coal dust is easily blown from roof to be spread, and not only influences railway
Transportation safety, causes the wasting of resources and economic loss, and brings serious pollution caused by coal dust to Along Railway environment.
, can be by covering lid canvas at the top of the formula railway freight-car of spacious top or adding protection to realize coal railway Environmental-protection transporting
Head cover suppresses coal dust.Vehicle roof, which adds protection head cover, a variety of patterns, one of them is to use lift-on/lift-off type head cover, this kind of head cover
For overall hard rigid head cover, dead weight is larger, and head cover opening and closing need to be hung and installed by special purpose crane tool, during operation
Between it is longer, have impact on operating efficiency.
It is current this area skill to improve operating efficiency in conclusion how to shorten the activity duration of protection head cover opening and closing
Art personnel technical problem urgently to be resolved hurrily.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of protection head cover of spacious top formula railway freight-car, to shorten
The activity duration of head cover opening and closing is protected, so as to improve operating efficiency.
The another object of the utility model is to provide a kind of spacious top formula railway freight-car with above-mentioned protection head cover, with contracting
The activity duration of short protection head cover opening and closing, so as to improve operating efficiency.
In order to achieve the above object, the utility model provides following technical solution：
A kind of protection head cover of spacious top formula railway freight-car, including：
The roller shutter box of the top side rail of the car body is arranged on along the length over ends of body direction of spacious top formula railway freight-car；
The reel being rotatably arranged in the roller shutter box；
The flexible roller shutter of the car body top can be covered during stretching, the flexibility roller shutter is on the reel；
When the flexible roller shutter is stretched out with the reply bullet for making restoring force of the flexible roller shutter winding in the reel
Spring, described returning spring one end are arranged on the reel, and the other end is arranged on the roller shutter box；
By rotating the drive rod that the roller shutter can be driven to be covered in the car body top, the drive rod and the car
The end of body is hinged, and its swinging end is connected with the flexible roller shutter head end.
Preferably, in above-mentioned protection head cover, the flexibility roller shutter includes flexible curtain body and is arranged on the flexible curtain sheet
The elastic tightening portion at body both ends.
Preferably, in above-mentioned protection head cover, the flexibility roller shutter head end is connected with the connection being arranged in parallel with the reel
Part, the connector are connected with the drive rod.
Preferably, in above-mentioned protection head cover, the connector is sleeve；
The drive rod is U-shaped bar, and the U-shaped bar includes the longitudinal rod set along the length over ends of body direction and vertically sets
Two oscillating rods at the longitudinal rod both ends are put, the sleeve is rotationally set on the longitudinal rod, the oscillating rod
It is hinged with the end of the car body.
Preferably, in above-mentioned protection head cover, the fixed seat for being arranged on the body end portion is further included, the oscillating rod passes through
Axis pin is hinged with the fixed seat.
Preferably, in above-mentioned protection head cover, the driving device for driving the oscillating rod to rotate, the driving device are further included
It is connected with the axis pin, the axis pin and the oscillating rod key connection.
Preferably, in above-mentioned protection head cover, the driving device includes two gas motors, the gas motor and the swing
Bar, which corresponds, to be set.
Preferably, in above-mentioned protection head cover, the roller shutter box is arranged on the inner side of the top side rail；The reel with it is described
Connected between roller shutter box using bearing.
Preferably, in above-mentioned protection head cover, manual opening and closing device is further included, the manual opening and closing device includes：
It is hinged on the handle of the body end portion；
The connecting rod of the handle and the drive rod is connected, the handle drives the connecting rod to drive the drive by rotating
Lever rotates.
It can be seen from the above technical scheme that the protection head cover of spacious top formula railway freight-car provided by the utility model includes
Roller shutter box, reel, flexible roller shutter, returning spring and drive rod, wherein, length over ends of body side of the roller shutter box along spacious top formula railway freight-car
To the top side rail for being arranged on car body；Reel is rotatably arranged in roller shutter box；Flexible roller shutter can cover car body top when stretching out
Portion, flexible roller shutter is on reel；When flexible roller shutter stretches out, returning spring, which has, makes flexible roller shutter winding returning in reel
Multiple power, returning spring one end are arranged on reel, and the other end is arranged on roller shutter box；Drive rod can drive roller shutter by rotating
It is covered in car body top, the end of drive rod and car body is hinged, and its swinging end is connected with flexible roller shutter head end.
It should be noted that flexible roller shutter uses flexible material, the cloth material such as fiber weaving cloth, canvas specifically can be selected, but should
With performances such as waterproof, resistance to mould, acid and alkali-resistance, UV resistant irradiations.
In application, roller shutter box is arranged on the top side rail of car body along the length over ends of body direction of spacious top formula railway freight-car, and make
The end of drive rod and car body is hinged.When canopy-protected is not required in car body top, restoring force of the flexible roller shutter in returning spring
For the lower winding of effect on reel, protection head cover is in open mode.When car body top needs canopy-protected, rotation of drive rod is driven
The head end of flexible roller shutter is set to be stretched out from roller shutter box, until covering whole car body top；In drive rod drawing force and returning spring
Act under the restoring force effect on reel, flexible roller shutter tensioning spreader is covered on car body top, is formed complete roof and is prevented
Sheath.
The flexible roller shutter dead weight of the utility model is smaller, directly drives drive rod rotation and opening for flexible roller shutter can be achieved
Close, without supporting special purpose crane tool, the activity duration that protection head cover is opened and closed is shortened, so as to improve operating efficiency.
The utility model uses the roller shutter type flexible protective layer along cross-car, that is, width opening and closing at the same time, realizes and covers
The roof of spacious top formula railway freight-car, can effectively prevent bulk goods especially coal from blowing from roof to spread in transportational process, keep away
Exempt from loss of goods, also help the Environmental-protection transporting of Railway Coal.In addition, above-mentioned protection head cover on cargo amount influence compared with
It is small, do not interfere with the economic benefits of transportation efficiency of vehicle.
The utility model additionally provides a kind of spacious top formula railway freight-car, including car body and the protection that is arranged on the car body
Head cover, the protection head cover is any of the above-described kind of protection head cover, since above-mentioned protection head cover has the effect above, is had above-mentioned anti-
The spacious top formula railway freight-car of shield head cover has same effect, therefore repeats no more herein.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to these attached drawings.
Fig. 1 is the structure diagram of the protection head cover for the spacious top formula railway freight-car that the utility model embodiment provides；
Fig. 2 is in Fig. 1 I partial enlargement structure chart；
Fig. 3 is in Fig. 1 I front view；
Fig. 4 is the structure diagram of flexible roller shutter and roller shutter box that the utility model embodiment provides；
Fig. 5 is the structure diagram for the drive rod that the utility model embodiment provides；
Fig. 6 is the structural representation of the protection head cover open mode for the spacious top formula railway freight-car that the utility model embodiment provides
Figure；
Fig. 7 is the high schematic shapes of coal heap for the spacious top formula railway freight-car that the utility model embodiment provides；
Fig. 8 is the centre position of the protection head cover closing process for the spacious top formula railway freight-car that the utility model embodiment provides
Structure diagram；
Fig. 9 is the structural representation of the protection head cover closed mode for the spacious top formula railway freight-car that the utility model embodiment provides
Figure；
Figure 10 is the three-dimensional knot of the protection head cover closed mode for the spacious top formula railway freight-car that the utility model embodiment provides
Structure schematic diagram.
Embodiment
The utility model embodiment provides a kind of protection head cover of spacious top formula railway freight-car, shortens protection head cover opening and closing
Activity duration, so as to improve operating efficiency.
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, those of ordinary skill in the art's all other embodiments obtained without making creative work, belongs to
The scope of the utility model protection.
Attached drawing 1-10 is refer to, the protection head cover for the spacious top formula railway freight-car that the utility model embodiment provides includes roller shutter
Box 1, reel 9, flexible roller shutter 2, returning spring and drive rod 5, wherein, length over ends of body of the roller shutter box 1 along spacious top formula railway freight-car
Direction is arranged on the top side rail 01 of car body；Reel 9 is rotatably arranged in roller shutter box 1；Flexible roller shutter 2 can cover when stretching out
Car body top, flexible roller shutter 2 is on reel 9；When flexible roller shutter 2 stretches out, returning spring, which has, winds flexible roller shutter 2
In the restoring force of reel 9, returning spring one end is arranged on reel 9, and the other end is arranged on roller shutter box 1；Drive rod 5 is by turning
Kinetic energy enough drives roller shutter to be covered in car body top, and drive rod 5 and the end of car body are hinged, and its swinging end and flexible roller shutter 2
End (the circumferential outer end of i.e. flexible roller shutter 2) connection.
It should be noted that flexible roller shutter 2 uses flexible material, the cloth materials such as fiber weaving cloth, canvas specifically can be selected, but should
With performances such as waterproof, resistance to mould, acid and alkali-resistance, UV resistant irradiations.
In application, the length over ends of body direction of roller shutter box 1 along spacious top formula railway freight-car is arranged on to the top side rail 01 of car body, and
It is hinged drive rod 5 and the end of car body.When canopy-protected is not required in car body top, flexible roller shutter 2 is returned returning spring
In on reel 9, protection head cover is in open mode for the multiple lower winding of power effect.When car body top needs canopy-protected, rotate and drive
Lever 5 drives the head end of flexible roller shutter 2 to be stretched out from roller shutter box 1, until covering whole car body top；In 5 drawing force of drive rod
Acted on returning spring under the restoring force effect on reel 9, flexible 2 tensioning spreader of roller shutter is covered on car body top, is formed
Complete roof protective layer.
The flexible roller shutter 2 of the utility model is conducted oneself with dignity smaller, is directly driven drive rod 5 and is rotated flexibility roller shutter 2 can be achieved
Opening and closing, without supporting special purpose crane tool, shortens the activity duration that protection head cover is opened and closed, so as to improve operating efficiency.
The utility model uses the roller shutter type flexible protective layer along cross-car, that is, width opening and closing at the same time, realizes and covers
The roof of spacious top formula railway freight-car, can effectively prevent bulk goods especially coal from blowing from roof to spread in transportational process, keep away
Exempt from loss of goods, also help the Environmental-protection transporting of Railway Coal.In addition, above-mentioned protection head cover on cargo amount influence compared with
It is small, do not interfere with the economic benefits of transportation efficiency of vehicle.
The protection head cover of the utility model is suitable for KM98, KM100 KM _, is also applied for other kinds of spacious
Top formula open-top car, hopper wagon.
In preferable technical solution, flexible roller shutter 2 includes flexible curtain body 21 and is arranged on 21 both ends of flexible curtain body
Elastic tightening portion 22.The use Traditional flexible material of flexible curtain body 21 of center section, such as fiber weaving cloth, canvas, both ends
Elastic tightening portion 22 uses highly elastic material, has higher elasticity；Specifically, between flexible curtain body 21 and elastic tightening portion 22
Sewing connection, as shown in Figure 4.When flexible roller shutter 2 reaches close stance, elastic tightening portion 22 is automatic in the presence of a tensile force to receive
Tightly, the surface of end cargo is covered on, protection effect is preferable.It is understood that above-mentioned flexibility roller shutter 2 can also use other
Structure type, such as uses flexible material, adds gravity briquetting in flexible 2 end of roller shutter, by gravity, realize same
Flexible 2 end of roller shutter is set to be covered on the effect of end cargo surfaces.
In order to make flexible roller shutter 2 reach preferable flattening effect when stretching out, flexible 2 head end of roller shutter is connected with and reel 9
The connector being arranged in parallel, connector are connected with drive rod 5.So under the action of connector, flexible 2 head end of roller shutter all the time with
Reel 9 is parallel, can better adapt to reel 9 and rotate the flexible roller shutter 2 outwards released.Certainly, the utility model can not also
Above-mentioned connector is set, and it is hard rigid end to make flexible 2 head end of roller shutter, is directly connected with drive rod 5.
In above-described embodiment, connector is sleeve 10；Drive rod 5 is U-shaped bar, and U-shaped bar includes setting along length over ends of body direction
The longitudinal rod 51 put and two oscillating rods 52 for being vertically set on 51 both ends of longitudinal rod, as shown in figure 5, sleeve 10 rotationally covers
Loaded on longitudinal rod 51, oscillating rod 52 and the end of car body are hinged., can be opposite to be flexibly connected between sleeve 10 and longitudinal rod 51
Rotate.In this way, in 5 rotation process of drive rod, the sleeve 10 being connected with flexible 2 head end of roller shutter can be rotated relative to drive rod 5,
So that flexible roller shutter 2 better adapts to the top shape of cargo vehicle, avoid flexible roller shutter 2 that fold occurs, ensure that protection
Effect.Interchangeable, connector can also be connecting shaft, and drive rod 5 only includes oscillating rod 52 at this time, makes the end of oscillating rod 52
It is hinged and connected with the end of connecting shaft.
For the ease of installing oscillating rod 52, protection head cover further includes the fixed seat 4 for being arranged on body end portion, and oscillating rod 52 is logical
It is hinged with fixed seat 4 to cross axis pin 6.The utility model in body end portion mounting-fixing base 4, then makes oscillating rod 52 pass through pin first
Axis 6 is hinged with fixed seat 4, is hinged so as to fulfill oscillating rod 52 and the end of car body, so without directly being punched on car body, and
And fixed seat 4 is preferable to the support strength of oscillating rod 52.Certainly, the utility model can not also the above-mentioned fixed seat 4 of society, will put
Lever 52 is directly hinged with body end portion.
The protection head cover of the utility model has following three kinds of states：
(1) head cover open mode (roller shutter withdrawal) is protected
When canopy-protected is not required in vehicle roof, flexible roller shutter 2 is wound under the action of returning spring on reel 9,
Protect head cover in opened condition, as shown in Figure 6.
(2) intermediateness for protecting head cover to close
After existing loading goods train coal, generally having certain heap height, (i.e. coal exceeds car body top and is in tetragonous
Taper, as shown in Figure 7).In head cover closing process is protected, drive rod 5 is rotated around axis pin 6, and the longitudinal rod 51 at the top of it drives
Sleeve 10 is moved along away from the arc-shaped track on top coal surface, and 2 head end of flexible roller shutter being connected with sleeve 10 is from roller shutter box 1
Middle stretching；In any time of protection head cover closing process, become since the lower flexible roller shutter 2 of returning spring effect is stored back to volume all the time
Gesture, flexible roller shutter 2 should be in tensioning spreader state under two active forces of roller shutter head end and reel 9, but since coal heap is high,
Pulling out the centre position of flexible roller shutter 2 may contact with coal, and actual roller shutter is in broken line state, as shown in Figure 8.
(3) head cover closed mode is protected
When drive rod 5 reaches protection head cover close stance, under above-mentioned 5 drawing force of drive rod and the effect of 9 restoring force of reel,
Flexible roller shutter 2 is tightened and successively contacted on length over ends of body direction with vehicle roof coal surface A, B, C, flexible 2 end of roller shutter
The automatic tightening under the resilient force in elastic tightening portion 22, is covered on end coal D, E surface, after protection head cover is closed in place
Complete roof protective layer is formed, as shown in Figure 9, Figure 10.
In further technical solution, protection head cover further includes the driving device that driving oscillating rod 52 rotates, driving device
It is connected with axis pin 6, axis pin 6 and 52 key connection of oscillating rod.The utility model provides rotatory force by driving device, passes through axis pin 6
It is driven with key to oscillating rod 52, so that oscillating rod 52 is rotated around the axis of axis pin 6, realizes that automatic shutter protects head cover, drop
Low hand labor intensity, improves operating efficiency.
Preferably, driving device includes two gas motors 3, and gas motor 3 is corresponded with oscillating rod 52 and set.The present embodiment
A set of gas motor 3 is respectively provided with vehicle both ends, two gas motors 3 rotate synchronously, and drive the oscillating rod 52 of one end to rotate respectively, keep away
Exempt from one end and use larger active force, work smoothness are preferable.Certainly, above-mentioned driving device can also include motor or other
It is capable of providing the transmission device of rotatory force.
In one specific embodiment of the utility model, roller shutter box 1 is arranged on the inner side of top side rail 01；The technical program is implemented
When, as Figure 2-3, roller shutter box 1 is installed on the top side rail 01 of car body side, and specific location is loaded on the top side rail 01 in car body
Inner side, makes protection head cover opening larger, is more suitable for the needs that large coal high-efficiency loads.Certainly, roller shutter box 1 is also mountable to
The top of top side rail 01.
Connected between reel 9 and roller shutter box 1 using bearing, reel 9 is rotated around along its axis in roller shutter box 1, reel 9
The frictional force being subject to is smaller, is more convenient for being opened and closed flexible roller shutter 2.It can also pass through clearance fit between above-mentioned reel 9 and roller shutter box 1
Or the mode of coating lubricating oil, realize the effect of same rotation connection.
In order to further optimize above-mentioned technical proposal, protection head cover further includes manual opening and closing device, manual opening and closing device bag
Include the handle 7 for being hinged on body end portion；The connecting rod 8 of handle 7 and drive rod 5 is connected, handle 7 drives connecting rod 8 to drive by rotating
Drive rod 5 rotates.The utility model is respectively provided with a set of manual opening and closing device at vehicle both ends, and gas motor 3 and handle 7 can be independent
Promote drive rod 5 to complete flexible roller shutter 2 to be opened and closed.Either end handle 7 is only driven during opening and closing manually, is driven and driven by connecting rod 8
5 rotary motion of lever.Certainly, the utility model can also only include manual opening and closing device or driving device.
The utility model embodiment additionally provides a kind of spacious top formula railway freight-car, including car body and is arranged on anti-on car body
Head cover is protected, which is the protection head cover that any of the above-described embodiment provides, when shortening the operation of protection head cover opening and closing
Between, so as to improve operating efficiency, its advantage is brought by protection head cover, specifically refer to relevant in above-described embodiment
Part, just repeats no more herein.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (10)
- A kind of 1. protection head cover of spacious top formula railway freight-car, it is characterised in that including：The roller shutter box (1) of the top side rail (01) of the car body is arranged on along the length over ends of body direction of spacious top formula railway freight-car；The reel (9) being rotatably arranged in the roller shutter box (1)；The flexible roller shutter (2) of the car body top can be covered during stretching, the flexibility roller shutter (2) is wound on the reel (9) On；There is returning for the restoring force for making flexible roller shutter (2) winding in the reel (9) when the flexible roller shutter (2) is stretched out Multiple spring, described returning spring one end are arranged on the reel (9), and the other end is arranged on the roller shutter box (1)；By rotating the roller shutter can be driven to be covered in the drive rod (5) of the car body top, the drive rod (5) with it is described The end of car body is hinged, and its swinging end is connected with described flexible roller shutter (2) head end.
- 2. protection head cover according to claim 1, it is characterised in that the flexibility roller shutter (2) includes flexible curtain body (21) and it is arranged on the elastic tightening portion (22) at flexible curtain body (21) both ends.
- 3. protection head cover according to claim 1, it is characterised in that it is described flexibility roller shutter (2) head end be connected with it is described The connector that reel (9) is arranged in parallel, the connector are connected with the drive rod (5).
- 4. protection head cover according to claim 3, it is characterised in that the connector is sleeve (10)；The drive rod (5) is U-shaped bar, and the U-shaped bar includes the longitudinal rod (51) set along the length over ends of body direction and hangs down Two oscillating rods (52) at the longitudinal rod (51) both ends are directly arranged on, the sleeve (10) is rotationally set in the longitudinal direction On bar (51), the oscillating rod (52) and the end of the car body are hinged.
- 5. protection head cover according to claim 4, it is characterised in that further include the fixed seat for being arranged on the body end portion (4), the oscillating rod (52) is hinged by axis pin (6) and the fixed seat (4).
- 6. protection head cover according to claim 5, it is characterised in that further include the drive for driving the oscillating rod (52) to rotate Dynamic device, the driving device are connected with the axis pin (6), the axis pin (6) and the oscillating rod (52) key connection.
- 7. protection head cover according to claim 6, it is characterised in that the driving device includes two gas motors (3), institute State gas motor (3) and correspond setting with the oscillating rod (52).
- 8. protection head cover according to claim 1, it is characterised in that the roller shutter box (1) is arranged on the top side rail (01) inner side；It is connected between the reel (9) and the roller shutter box (1) using bearing.
- 9. head cover is protected according to claim 1-8 any one of them, it is characterised in that manual opening and closing device is further included, it is described Manual opening and closing device includes：It is hinged on the handle (7) of the body end portion；The connecting rod (8) of the handle (7) and the drive rod (5) is connected, the handle (7) drives the connecting rod by rotating (8) drive rod (5) is driven to rotate.
- 10. a kind of spacious top formula railway freight-car, including car body and the protection head cover that is arranged on the car body, it is characterised in that institute It is that claim 1-9 any one of them such as protects head cover to state protection head cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721310669.6U CN207360328U (en) | 2017-10-11 | 2017-10-11 | Spacious top formula railway freight-car and its protection head cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721310669.6U CN207360328U (en) | 2017-10-11 | 2017-10-11 | Spacious top formula railway freight-car and its protection head cover |
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| Publication Number | Publication Date |
|---|---|
| CN207360328U true CN207360328U (en) | 2018-05-15 |
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|---|---|---|---|
| CN201721310669.6U Active CN207360328U (en) | 2017-10-11 | 2017-10-11 | Spacious top formula railway freight-car and its protection head cover |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217253A (en) * | 2019-06-25 | 2019-09-10 | 神华铁路货车运输有限责任公司 | For the self-locking mechanism of lorry unloading and with its railway freight-car |
| CN110386158A (en) * | 2019-07-31 | 2019-10-29 | 株洲华盛实业有限公司 | A kind of the swing arm spring type top cover opening and closing device and method for opening and closing of shipping opening vehicle |
-
2017
- 2017-10-11 CN CN201721310669.6U patent/CN207360328U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217253A (en) * | 2019-06-25 | 2019-09-10 | 神华铁路货车运输有限责任公司 | For the self-locking mechanism of lorry unloading and with its railway freight-car |
| CN110386158A (en) * | 2019-07-31 | 2019-10-29 | 株洲华盛实业有限公司 | A kind of the swing arm spring type top cover opening and closing device and method for opening and closing of shipping opening vehicle |
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