CN109249952A - Pneumatic dual-use manual roof system - Google Patents
Pneumatic dual-use manual roof system Download PDFInfo
- Publication number
- CN109249952A CN109249952A CN201811039146.1A CN201811039146A CN109249952A CN 109249952 A CN109249952 A CN 109249952A CN 201811039146 A CN201811039146 A CN 201811039146A CN 109249952 A CN109249952 A CN 109249952A
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- China
- Prior art keywords
- manual
- top cover
- toggle linkage
- roof system
- pneumatic
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- 230000005540 biological transmission Effects 0.000 claims abstract description 68
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 230000008878 coupling Effects 0.000 claims abstract description 16
- 238000010168 coupling process Methods 0.000 claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 claims abstract description 16
- 238000010276 construction Methods 0.000 claims abstract description 12
- 230000003447 ipsilateral effect Effects 0.000 claims description 12
- 230000033001 locomotion Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000032258 transport Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D39/00—Wagon or like covers; Tarpaulins; Movable or foldable roofs
- B61D39/006—Opening and closing means
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of pneumatic dual-use manual roof systems, comprising: top cover, top cover include left top cover and right top cover；Support construction, support construction are set on car body, are used to support top cover；Coupling structure, coupling structure are symmetrically disposed on car body rear and front end, and top cover is connected to transmission shaft by link mechanism；Driving structure, driving structure are connected to transmission shaft, for driving transmission shaft to make canopy switch by coupling structure.The top cover open and close system realizes the function of pneumatic dual-use manual, manual retarder is set in the middle part of vehicle, solve the problems, such as top cover both ends discontinuity when the opening and closing of existing mechanism manual by combining man-operated mechanism with air operated mechanism.
Description
Technical field
The invention belongs to equipment of railway transportation fields, more particularly, to a kind of pneumatic dual-use manual roof system.
Background technique
Railway Freight Transportation is one of modern transportation major way, and constitutes two basic transports of land cargo transport
One of mode, its main feature is that upwards of movement is big, speed is fast, and cost is relatively low, and general climate condition limits again, be suitable for it is large,
The long-distance transport of bulky goods.It occupies an important position in entire transport field, and plays more and more important role.
Railway transportation is since climate and effect of natural conditions are smaller, and transport capacity and bicycle useful load are significantly, in the frequent of transport
Property and low cost occupy advantage, can carry any commodity along with it there are many vehicle of type, is made almost, almost can be with
It is not limited by weight and volume, and what these Dou Shi highways and air transportation mode cannot compare.In equipment of railway transportation
In, railway hopper car is one of common vehicle, the existing elongated top cover switching mechanism of railway hopper car, generally all at vehicle both ends point
Not She Zhi two sets of cylinders, two sets of cylinder synchronization actions are when being opened and closed top cover to guarantee top cover both ends uniform force, and when being opened and closed manually
Since one can not manipulate simultaneously at vehicle both ends, so often manual switching mechanism can only be arranged in vehicle one end, push up at this time
Lid both ends switching mechanism synchronism is poor, will receive distortion power during top cover opening and closing, be easy to cause top cover after long-time use
Torsional deformation, and then influence the functions such as sealing.
Therefore, it is necessary to research and develop a kind of pneumatic dual-use manual roof system, make top cover both ends uniform force in open and close,
The case where avoiding top cover from deforming in opening process due to both ends discontinuity, and there are a variety of opening and closing forms, make
The open and close of top cover is convenient and efficient.
Summary of the invention
The object of the present invention is to provide a kind of pneumatic dual-use manual roof systems, solve existing switching mechanism and are easy to make top cover
Unbalance stress the problem of deforming, provides pneumatic and manual two kinds of opening and closing forms, keeps the opening and closing mode of top cover flexible and varied.
To achieve the goals above, the present invention provides a kind of pneumatic dual-use manual roof system and includes:
Top cover, the top cover include left top cover and right top cover；
Support construction, the support construction are set on car body, are used to support the top cover；
Coupling structure, the coupling structure are symmetrically disposed on the car body rear and front end, and the top cover is passed through connecting rod knot
Structure is connected to transmission shaft；
Driving structure, the driving structure are connected to the transmission shaft, for driving the transmission shaft to pass through coupling structure
So that the canopy switch.
Preferably, the driving structure includes Pneumatic part and manual part, and the Pneumatic part is cylinder driving, described
Part passes through manual shaft and Tiebar structure cooperation driving manually.
Preferably, the hand-operated point includes manual shaft, manual toggle linkage, transmission toggle linkage, the first pull rod, second
Pull rod, the manual toggle linkage are installed on the manual shaft both ends, and the transmission toggle linkage is installed on the transmission shaft,
First pull rod, the second pull rod are articulated between the manual toggle linkage and the transmission toggle linkage both ends.
Preferably, the manual part further includes retarder, and the retarder is located in the middle part of the manual shaft, the deceleration
The input shaft end of device is equipped with handwheel, and the output shaft of the retarder drives the manual shaft.
Preferably, the Pneumatic part is set to the rear and front end of the car body, including crank throw and cylinder, the crank throw one
End is installed on the transmission shaft, and the piston rod of the other end and the cylinder is hinged.
Preferably, the link mechanism includes connecting rod base, connecting rod, toggle linkage, the first push rod, the second push rod, the company
Pole socket is set to the body end portion two sides, and described connecting rod one end is articulated with the connecting rod base, and the other end is articulated with ipsilateral described
Top cover, the toggle linkage are fixedly installed on the transmission shaft, and first push rod, the second push rod are hingedly connected to described double
Join the both ends of lever, first push rod, the second push rod other end are hingedly connected to the ipsilateral connecting rod.
Preferably, the support construction includes multiple support rods and support base, and the support base is set to the car body
Side, described support rod one end are articulated with the support base, and the other end is articulated on the outside of the top cover.
Preferably, the support base is equipped with limited block, for limiting the rotation angle of the support rod while playing
Supporting role.
Preferably, the transmission shaft and the manual shaft pass through bearing block and are installed on the car body.
Preferably, the cylinder has cylinder block.
The beneficial effects of the present invention are: the rear and front end of top cover is connected to by coupling structure and transmission shaft same
In driving mechanism, the both ends of top cover synchronous stress during open and close keeps top cover opening and closing process convenient smoothly, avoids that shape occurs
Become.By combining man-operated mechanism with air operated mechanism, the function of wind dual-use manual is realized, keeps the opening and closing form of top cover more
Sample, and when an opening and closing structure breaks down, another can be used, not influence to use.Top cover both ends are passed through into duplex thick stick
Bar and pull rod are connected to the both ends of the same manual shaft, and manual retarder is set to the middle part of manual shaft, is driven by retarder
Moving axis of starting realizes top cover opening and closing, solves the problems, such as top cover both ends discontinuity when the opening and closing of existing mechanism manual.By cylinder
It is connected to transmission shaft by crank throw, starts the cylinder of one end, crank throw drives transmission shaft to drive the top cover of one end, while passing through transmission
Transmission between axis and manual shaft drives the top cover of the other end, keeps the movement at top cover both ends synchronous.
Other features and advantages of the present invention will then part of the detailed description can be specified.
Detailed description of the invention
Exemplary embodiment of the invention is described in more detail in conjunction with the accompanying drawings, it is of the invention above-mentioned and its
Its purpose, feature and advantage will be apparent, wherein in exemplary embodiment of the invention, identical reference label
Typically represent same parts.
Fig. 1 show pneumatic dual-use manual roof system according to an embodiment of the invention in top cover closed state
When schematic diagram.
Fig. 2 shows pneumatic dual-use manual roof systems according to an embodiment of the invention in top cover open state
When schematic diagram.
Fig. 3 shows the partial schematic diagram of pneumatic dual-use manual roof system according to an embodiment of the invention.
Description of symbols
1, right top cover；2, left top cover；3, support rod；4, support base；5, connecting rod；6, connecting rod base；7, the first push rod；8, second
Push rod；9, toggle linkage；10, it is driven toggle linkage；11, crank throw；12, cylinder；13, cylinder block；14, the first pull rod；15, second
Pull rod；16, manual toggle linkage；17, bearing block；18, manual shaft；19, retarder；20, handwheel；21, transmission shaft.
Specific embodiment
The preferred embodiment of the present invention is described in more detail below.Although the following describe preferred implementations of the invention
Mode, however, it is to be appreciated that may be realized in various forms the present invention without that should be limited by the embodiments set forth herein.Phase
Instead, these embodiments are provided so that the present invention is more thorough and complete, and can be by the scope of the present invention completely
It is communicated to those skilled in the art.
Pneumatic dual-use manual roof system according to the present invention, comprising:
Top cover, top cover include left top cover and right top cover；
Support construction, support construction are set on car body, are used to support top cover；
Coupling structure, coupling structure are symmetrically disposed on car body rear and front end, and top cover is connected to transmission by link mechanism
Axis；
Driving structure, driving structure are connected to transmission shaft, for driving transmission shaft to make canopy switch by coupling structure.
Specifically, driving structure drives transmission shaft rotation, and the rotation of transmission shaft is passed to top cover, makes top cover by coupling structure
Two sides are opened to the left and right respectively under the cooperation of support construction, realize the unlatching of top cover, and when closing top cover, driving structure, which drives, to be passed
Moving axis rotates backward, similar with opening process, the rear and front end of top cover is connected to by coupling structure and transmission shaft same
In driving mechanism, the both ends of top cover synchronous stress during open and close keeps top cover opening and closing process convenient smoothly.
Preferably, driving structure includes Pneumatic part and manual part, and Pneumatic part is cylinder driving, hand-operated
Divide through manual shaft and Tiebar structure cooperation driving.
Specifically, man-operated mechanism is combined with air operated mechanism, realizes the function of wind dual-use manual, make the opening and closing of top cover
Various informative property, opening and closing process is convenient and efficient, and when an opening and closing structure breaks down, can use another, not influence
It uses.
Preferably, hand-operated point includes manual shaft, manual toggle linkage, transmission toggle linkage, the first pull rod, the
Two pull rods, manual toggle linkage are installed on manual shaft both ends, and transmission toggle linkage is installed on transmission shaft, the first pull rod, second
Pull rod is articulated between manual toggle linkage and transmission toggle linkage both ends.
Specifically, manual shaft rotates counterclockwise, and drives the manual toggle linkage at its both ends to rotate counterclockwise, due to manual
Toggle linkage, the both ends for being driven toggle linkage are connected by the first pull rod, the second pull rod, so transmission toggle linkage is also inverse therewith
Hour hands rotation, since transmission toggle linkage is set on transmission shaft, so transmission toggle linkage drives transmission shaft to walk around counterclockwise
Dynamic, transmission shaft drives top cover to open by coupling structure.When closing top cover, manual shaft is rotated clockwise.
It preferably, manually partially further include retarder, retarder is located in the middle part of manual shaft, the input shaft of retarder
End is equipped with handwheel, and the output shaft of retarder drives manual shaft.
Specifically, top cover both ends are connected to the both ends of the same manual shaft by toggle linkage and pull rod, will be subtracted manually
Fast device is set to the middle part of manual shaft, by hand wheel rotating input shaft, so that the output shaft of retarder is driven manual shaft rotation, solves
When the opening and closing of existing mechanism manual the problem of top cover both ends discontinuity.
Preferably, Pneumatic part is set to the rear and front end of car body, including crank throw and cylinder, the installation of crank throw one end
In on transmission shaft, the piston rod of the other end and cylinder is hinged.
Specifically, cylinder is connected to transmission shaft by crank throw, starts the cylinder of one end, crank throw drives transmission shaft driving one
The top cover at end, while by the top cover of the transmission drive other end between transmission shaft and manual shaft driving, make the fortune at top cover both ends
It is dynamic to synchronize.
Preferably, link mechanism includes connecting rod base, connecting rod, toggle linkage, the first push rod, the second push rod, connecting rod
Seat is set to body end portion two sides, and connecting rod one end is articulated with connecting rod base, and the other end is articulated with ipsilateral top cover, the fixed peace of toggle linkage
Loaded on transmission shaft, the first push rod, the second push rod are hingedly connected to the both ends of toggle linkage, and the first push rod, the second push rod are another
End is hingedly connected to ipsilateral connecting rod.
Specifically, when manually opened, operator, which rotates handwheel, makes reducer output shaft drive manual shaft rotation, manual shaft
Manual toggle linkage is driven to rotate counterclockwise while rotation, manual toggle linkage pulls the first pull rod to move downward, and first
It drives transmission toggle linkage to rotate counterclockwise when pull rod moves downward, is driven toggle linkage at this time and drives transmission shaft rotation, pass
Moving axis rotates while toggle linkage being driven to rotate counterclockwise, and pushes the first push rod and the second push rod respectively to fortune on the outside of car body
Dynamic, when the first push rod and the second pushrod movement, pushes connecting rod to do rotary motion centered on connecting rod base, and top cover is opened at this time.
When pneumatic unlatching, the piston motion of cylinder drives crank throw to rotate counterclockwise, and crank throw drives transmission shaft rotation at this time,
Transmission shaft rotates while toggle linkage being driven to rotate counterclockwise, and pushes the first push rod and the second push rod respectively to fortune on the outside of car body
Dynamic, when the first push rod and the second pushrod movement, pushes connecting rod to do rotary motion centered on connecting rod base, and top cover is opened at this time.
Preferably, support construction includes multiple support rods and support base, and support base is set to the side of car body, branch
Strut one end is articulated with support base, and the other end is articulated on the outside of top cover.
Preferably, support base is equipped with limited block, for limiting the rotation angle of support rod while playing branch
Support effect.
Preferably, transmission shaft and manual shaft pass through bearing block and are installed on car body.
Preferably, cylinder has cylinder block.
Embodiment
Fig. 1 show pneumatic dual-use manual roof system according to an embodiment of the invention in top cover closed state
When schematic diagram；Fig. 2 shows opening in top cover for pneumatic dual-use manual roof system according to an embodiment of the invention
Schematic diagram when state；The part that Fig. 3 shows pneumatic dual-use manual roof system according to an embodiment of the invention shows
It is intended to.It is as shown in Figure 1 to Figure 3:
Pneumatic dual-use manual roof system includes:
Left top cover 2 and right top cover 1 are set to the top of car body, and connecting rod base 6 is set to body end portion two sides, and support base 4 is set
It is placed in the side of car body, 3 one end of support rod is articulated with the outside of ipsilateral top cover, and the other end is articulated with ipsilateral corresponding support base 4,
Support base 4 is equipped with limited block, for limiting the rotation angle of support rod 3 while playing a supporting role；5 one end of connecting rod is hinged
In the end of ipsilateral top cover, the other end is articulated with corresponding connecting rod base 6, and transmission shaft 21 is fixedly installed in car body by bearing block 17
Rear and front end, toggle linkage 9 are fixedly installed on transmission shaft 21, and the first push rod 7, the second push rod 8 are hingedly connected to toggle linkage 9
Both ends, the first push rod 7,8 other end of the second push rod are hingedly connected to ipsilateral connecting rod 5.
Transmission shaft 21 is connected to driving structure, and driving structure includes Pneumatic part and manual part, and hand-operated point includes hand
Moving axis 18, manual toggle linkage 16, transmission toggle linkage 10, the first pull rod 14, the second pull rod 15, manual shaft 18 pass through bearing block
17 are installed on vehicle bottom, and manual toggle linkage 16 is installed on 18 both ends of manual shaft, and transmission toggle linkage 10 is installed on transmission shaft
On 21, the first pull rod 14, the second pull rod 15 are articulated between manual toggle linkage 16 and transmission 10 both ends of toggle linkage, retarder
19 are located at 18 middle part of manual shaft, and the input shaft end of retarder 19 is equipped with handwheel 20, and the output shaft of retarder 19 drives manual shaft
18；Pneumatic part is cylinder driving, is set to the rear and front end of car body, including crank throw 11 and cylinder 12, cylinder 12 are installed on gas
In cylinder seat 13,11 one end of crank throw is installed on transmission shaft 21, and the piston rod of the other end and cylinder 12 is hinged.
When manually opened, operator, which rotates handwheel 20, makes 19 output shaft of retarder that manual shaft 18 be driven to rotate, manual shaft
Manual toggle linkage 16 is driven to rotate counterclockwise while 18 rotation, manual toggle linkage 16 pulls the first pull rod 14 fortune downwards
It is dynamic, it drives transmission toggle linkage 10 to rotate counterclockwise when the first pull rod 14 moves downward, is driven toggle linkage 10 at this time and drives
Transmission shaft 21 rotates, and transmission shaft 21 rotates while toggle linkage 9 being driven to rotate counterclockwise, and pushes the first push rod 7, the second push rod
8 respectively to car body movement outside, and the first push rod 7, the second push rod 8 push ipsilateral connecting rod 5 to return centered on connecting rod base 6 when moving
Transhipment is dynamic, and top cover is opened at this time.
When pneumatic unlatching, the piston rod of cylinder 12 is released upwards, and crank throw 11 is pushed to rotate, and transmission shaft 21 is driven to rotate, and is passed
Moving axis 21 rotates while toggle linkage 9 being driven to rotate counterclockwise, and pushes the first push rod 7, the second push rod 8 respectively to car body outside
Movement, the first push rod 7, the second push rod 8 push ipsilateral connecting rod 5 to do rotary motion centered on connecting rod base 6 when moving, at this time top cover
It opens.
The closing process and opening process of top cover are reverse motions.
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes are obvious for the those of ordinary skill in art field.
Claims (10)
1. a kind of pneumatic dual-use manual roof system, which is characterized in that the pneumatic dual-use manual roof system includes:
Top cover, the top cover include left top cover and right top cover；
Support construction, the support construction are set on car body, are used to support the top cover；
Coupling structure, the coupling structure are symmetrically disposed on the car body rear and front end, and the top cover is connected by link mechanism
It is connected to transmission shaft；
Driving structure, the driving structure are connected to the transmission shaft, for driving the transmission shaft to make by coupling structure
The canopy switch.
2. pneumatic dual-use manual roof system according to claim 1, which is characterized in that the driving structure includes pneumatic
Part and manual part, the Pneumatic part are cylinder driving, and the manual part is driven by manual shaft and Tiebar structure cooperation
It is dynamic.
3. pneumatic dual-use manual roof system according to claim 2, which is characterized in that the hand-operated point includes manual
Axis, manual toggle linkage, transmission toggle linkage, the first pull rod, the second pull rod, the manual toggle linkage are installed on described manual
Axis both ends, the transmission toggle linkage are installed on the transmission shaft, and first pull rod, the second pull rod are articulated with described manual
Between toggle linkage and the transmission toggle linkage both ends.
4. pneumatic dual-use manual roof system according to claim 3, which is characterized in that the manual part further includes subtracting
Fast device, the retarder are located in the middle part of the manual shaft, and the input shaft end of the retarder is equipped with handwheel, the retarder
Output shaft drives the manual shaft.
5. pneumatic dual-use manual roof system according to claim 2, which is characterized in that the Pneumatic part is set to institute
The rear and front end of car body, including crank throw and cylinder are stated, described crank throw one end is installed on the transmission shaft, the other end and the gas
The piston rod of cylinder is hinged.
6. pneumatic dual-use manual roof system according to claim 1, which is characterized in that the link mechanism includes connecting rod
Seat, connecting rod, toggle linkage, the first push rod, the second push rod, the connecting rod base are set to the body end portion two sides, the connecting rod
One end is articulated with the connecting rod base, and the other end is articulated with the ipsilateral top cover, and the toggle linkage is fixedly installed in the transmission
On axis, first push rod, the second push rod are hingedly connected to the both ends of the toggle linkage, first push rod, the second push rod
The other end is hingedly connected to the ipsilateral connecting rod.
7. pneumatic dual-use manual roof system according to claim 1, which is characterized in that the support construction includes multiple
Support rod and support base, the support base are set to the side of the car body, and described support rod one end is articulated with the support base,
The other end is articulated on the outside of the top cover.
8. pneumatic dual-use manual roof system according to claim 7, which is characterized in that the support base is equipped with limit
Block, for limiting the rotation angle of the support rod while playing a supporting role.
9. pneumatic dual-use manual roof system according to claim 2, which is characterized in that the transmission shaft and it is described manually
Axis passes through bearing block and is installed on the car body.
10. pneumatic dual-use manual roof system according to claim 5, which is characterized in that the cylinder has cylinder
Seat.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811039146.1A CN109249952B (en) | 2018-09-06 | 2018-09-06 | Pneumatic and manual dual-purpose top cover system |
| ARP190102547A AR116371A1 (en) | 2018-09-06 | 2019-09-06 | PNEUMATIC AND MANUAL ROOF SYSTEM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811039146.1A CN109249952B (en) | 2018-09-06 | 2018-09-06 | Pneumatic and manual dual-purpose top cover system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109249952A true CN109249952A (en) | 2019-01-22 |
| CN109249952B CN109249952B (en) | 2024-07-09 |
Family
ID=65046971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811039146.1A Active CN109249952B (en) | 2018-09-06 | 2018-09-06 | Pneumatic and manual dual-purpose top cover system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109249952B (en) |
| AR (1) | AR116371A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370070A (en) * | 2019-07-11 | 2019-10-25 | 九江七所精密机电科技有限公司 | A kind of shield of manual-automatic integral linkage opening-closing structure |
| CN110667625A (en) * | 2019-10-08 | 2020-01-10 | 中车太原机车车辆有限公司 | Manual opening and closing device for top cover of railway wagon and railway wagon |
| CN114013464A (en) * | 2021-11-25 | 2022-02-08 | 中车眉山车辆有限公司 | Large-volume grain hopper wagon suitable for low-loading hopper |
| CN114590280A (en) * | 2022-03-30 | 2022-06-07 | 常州市新创智能科技有限公司 | Jacking side-turning door-opening structure for double-open type car body top cover |
| CN115027519A (en) * | 2022-04-25 | 2022-09-09 | 中车株洲车辆有限公司 | Top cover opening and closing device and railway wagon |
| WO2023093518A1 (en) * | 2021-11-25 | 2023-06-01 | 中车眉山车辆有限公司 | Translation type grain hopper car top cover |
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| CN106515775A (en) * | 2016-12-21 | 2017-03-22 | 包头北方创业股份有限公司 | Bulk grain goods transport funnel type rail wagon with automatic top covers |
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| CN208931342U (en) * | 2018-09-06 | 2019-06-04 | 中车太原机车车辆有限公司 | Pneumatic dual-use manual roof system |
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| GB1123638A (en) * | 1966-03-09 | 1968-08-14 | Rheinstahl Seigener Eisenbahnb | An improvement in or relating to goods wagons |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370070A (en) * | 2019-07-11 | 2019-10-25 | 九江七所精密机电科技有限公司 | A kind of shield of manual-automatic integral linkage opening-closing structure |
| CN110667625A (en) * | 2019-10-08 | 2020-01-10 | 中车太原机车车辆有限公司 | Manual opening and closing device for top cover of railway wagon and railway wagon |
| CN114013464A (en) * | 2021-11-25 | 2022-02-08 | 中车眉山车辆有限公司 | Large-volume grain hopper wagon suitable for low-loading hopper |
| CN114013464B (en) * | 2021-11-25 | 2023-03-14 | 中车眉山车辆有限公司 | Large-volume grain hopper wagon suitable for low-loading hopper |
| WO2023093518A1 (en) * | 2021-11-25 | 2023-06-01 | 中车眉山车辆有限公司 | Translation type grain hopper car top cover |
| WO2023093522A1 (en) * | 2021-11-25 | 2023-06-01 | 中车眉山车辆有限公司 | Large-volume grain hopper car suitable for low-loading hopper bin |
| CN114590280A (en) * | 2022-03-30 | 2022-06-07 | 常州市新创智能科技有限公司 | Jacking side-turning door-opening structure for double-open type car body top cover |
| CN115027519A (en) * | 2022-04-25 | 2022-09-09 | 中车株洲车辆有限公司 | Top cover opening and closing device and railway wagon |
Also Published As
| Publication number | Publication date |
|---|---|
| AR116371A1 (en) | 2021-04-28 |
| CN109249952B (en) | 2024-07-09 |
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