CN111038534A - Bottom door opening and closing mechanism and hopper car - Google Patents
Bottom door opening and closing mechanism and hopper car Download PDFInfo
- Publication number
- CN111038534A CN111038534A CN201911357647.9A CN201911357647A CN111038534A CN 111038534 A CN111038534 A CN 111038534A CN 201911357647 A CN201911357647 A CN 201911357647A CN 111038534 A CN111038534 A CN 111038534A
- Authority
- CN
- China
- Prior art keywords
- bottom door
- crank
- rotatably connected
- closing mechanism
- door opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D7/00—Hopper cars
- B61D7/14—Adaptations of hopper elements to railways
- B61D7/16—Closure elements for discharge openings
- B61D7/24—Opening or closing means
- B61D7/26—Opening or closing means mechanical
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Abstract
The invention relates to a bottom door opening and closing mechanism and a hopper car. The bottom door of the hopper car is arranged at the bottom of a car body in an openable and closable manner through a bottom door opening and closing mechanism, the first end of a first connecting rod of the bottom door opening and closing mechanism is rotatably connected to the bottom of the car body, the first end of a second connecting rod is rotatably connected with the second end of the first connecting rod, the second end of the second connecting rod is rotatably connected to the first end of a crank, the second end of the crank is rotatably connected to the bottom of the car body, the middle of the crank is rotatably connected with the first end of a pull rod, the second end of the crank is arranged opposite to the first end of the first connecting rod, the first end of the crank and the second end of the crank are both positioned at the same side of the middle of the crank, the second end of the pull rod is rotatably connected with the bottom of the bottom door, the top of the bottom door is rotatably connected with the car body, a stop. The invention can prevent the problem of reliability caused by self-unloading of goods due to self-opening of the bottom door in the running process of the vehicle.
Description
Technical Field
The invention belongs to the technical field of railway wagons, and particularly relates to a bottom door opening and closing mechanism and a hopper wagon.
Background
Hopper cars with bottom doors are mainly used for transporting bulk goods on railway lines, and after the cars arrive at the destination, the bulk goods are unloaded onto a conveyor belt or into a pit in a bottom unloading manner.
In the prior art, an unloading door (called a bottom door) at the bottom of a hopper car is generally opened and closed by a bottom door opening and closing mechanism. The bottom door opening and closing mechanism is used as a key part of the railway hopper car, and the safety and the reliability of the bottom door opening and closing mechanism directly influence the running safety of the car. At present, the bottom door opening and closing mechanism of the hopper car in China has a complex structure, the self-opening of the bottom door and the bottom door opening and closing mechanism occurs in the running process of the car to cause the self-unloading of goods, in order to prevent the self-unloading of the goods, a manufacturer can only improve the assembly precision to ensure the reliability of the bottom door opening and closing mechanism, the manufacturing cost is increased, and meanwhile, due to the complexity of the structure, the reliability is difficult to improve again, so that the transportation safety of the goods and the safe operation of the car cannot be ensured.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a hopper car to solve the technical problem of insufficient reliability of the hopper car in the prior art caused by the complicated structure of a bottom door opening and closing mechanism.
The technical scheme of the invention is as follows:
in one aspect, the present invention provides a bottom door opening and closing mechanism, comprising a first link, a second link, a crank, and a pull rod, each having a first end and a second end, wherein:
the first end of the first connecting rod is rotatably connected to the bottom of the vehicle body, the first end of the second connecting rod is rotatably connected to the second end of the first connecting rod, the second end of the second connecting rod is rotatably connected to the first end of the crank, the second end of the crank is rotatably connected to the bottom of the vehicle body, the middle of the crank is rotatably connected to the first end of the pull rod, the second end of the crank is opposite to the first end of the first connecting rod, the first end of the crank and the second end of the crank are both located on the same side of the middle of the crank, the second end of the pull rod is rotatably connected to the bottom of the bottom door, the top of the bottom door is rotatably connected to the vehicle body, the second end of the pull rod is rotatably connected to the bottom of the bottom door, and the top of the bottom door is located between the first end of the first connecting rod and the second end of the crank together with the vehicle body, the joint of the second end of the pull rod and the bottom of the bottom door is positioned below the second end of the crank;
the bottom door opening and closing mechanism further comprises a stop block, the stop block is fixedly arranged on the vehicle body, and the stop block is positioned on the lower side when the crank is positioned far away from the dead point.
Further, the bottom of automobile body is provided with the roof beam body, the middle part of roof beam body is provided with the slotted hole along its length direction, the bottom of roof beam body is provided with first connecting seat and second connecting seat respectively, first connecting seat with the second connecting seat sets up respectively the length direction both sides of slotted hole, the first end of first connecting rod rotationally connects on the first connecting seat, the second connecting rod passes the slotted hole, articulate second end rotationally comes your family to be in on the second connecting seat.
Furthermore, a connecting rod shaft is rotatably arranged on the first connecting seat, and the first end of the first connecting rod is fixedly connected to the connecting rod shaft.
Further, both ends of the connecting rod shaft are provided with driving blocks.
Further, the axial direction of the link shaft is the longitudinal direction of the vehicle body.
Further, the crank includes two relative splint, two is relative the first end of both sides that the splint deviate from mutually all is provided with first pivot, two first pivot can be respectively with two the second of second connecting rod holds rotatable coupling, and the second of the both sides that two relative splint back on the back all is provided with the second pivot, two the second pivot is rotationally connected on the second connecting seat, the first end of pull rod is located two between the splint, the first end of pull rod passes through the third pivot and two the middle part rotatable coupling of splint.
Furthermore, the part between the first end and the second end of the two clamping plates can be provided with a gap
Further, the length of the pull rod is adjustable.
On the other hand, the invention also provides the hopper car, which comprises a car body and the bottom door, wherein the bottom door is arranged at the bottom of the car body in an openable and closable manner through the bottom door opening and closing mechanism.
The invention has the beneficial effects that:
the hopper car provided by the invention has the advantages that the bottom door is arranged at the bottom of the car body in an openable and closable manner through the bottom door opening and closing mechanism, the crank can be driven to rotate around the second end of the crank within a certain angle through the second connecting rod by controlling the first connecting rod to rotate clockwise or anticlockwise, so that the height of the middle part of the crank can be adjusted.
In addition, the vehicle body is also provided with a stop block which is positioned at the lower side when the crank is positioned at the dead point position, when the crank rotates to the dead point position, the crank is driven by external force, and the rotation of the crank is prevented due to the limitation of the stop block, so that the problem of reliability caused by self-unloading of goods due to self-opening of the bottom door in the running process of the vehicle can be prevented, and the transportation safety of the goods and the safe operation of the vehicle can be ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view showing the arrangement of a bottom door opening/closing mechanism on a vehicle body in an embodiment of the invention;
FIG. 2 is a schematic view of the bottom door in a closed position;
FIG. 3 is a schematic view of the bottom door in an open position;
FIG. 4 is a schematic transmission diagram of the bottom door of the embodiment of the present invention from a closed state to an open state;
FIG. 5 is a schematic transmission diagram of the bottom door of the embodiment of the present invention from the open state to the closed state;
FIG. 6 is a schematic structural view of the crank of FIG. 1;
fig. 7 is a schematic structural view of the drawbar of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a hopper wagon, which comprises a wagon body and a bottom door, wherein the bottom door is arranged at the bottom of the wagon body in an openable and closable manner through a bottom door opening and closing mechanism so as to realize the opening and closing actions of the bottom door.
Fig. 1 is a schematic view showing the arrangement of a bottom door opening and closing mechanism in an embodiment of the present invention on a vehicle body, fig. 2 is a schematic view showing a state where a bottom door is closed, and fig. 3 is a schematic view showing a state where the bottom door is opened, and in conjunction with fig. 1 to 3, the bottom door opening and closing mechanism in an embodiment of the present invention includes a uniform stopper 10, and a first link 2 having a first end and a second end, a second link 3, a crank 5, and a pull rod 6.
Referring to fig. 1 to 3, in the embodiment of the present invention, the first end of the first link 2 is rotatably connected to the bottom of the vehicle body 8, the first end of the second link 3 is rotatably connected to the second end of the first link 2, the second end of the second link 3 is rotatably connected to the first end of the crank 5, the second end of the crank 5 is rotatably connected to the bottom of the vehicle body 8, the middle of the crank 5 is rotatably connected to the first end of the pull rod 6, the second end of the crank 5 is opposite to the first end of the first link 2, the first end of the crank 5 and the second end of the crank 5 are both located on the same side of the middle of the crank 5, i.e., the crank 5 is U-shaped as a whole, the second end of the pull rod 6 is rotatably connected to the bottom of the bottom door 4, the top of the bottom door 4 is rotatably connected to the vehicle body 8, the second end of the pull rod 6 is connected to the bottom of the bottom door 4, and the top of the bottom door 4 is located between the first end of, the junction of the second end of the pull rod 6 and the bottom of the bottom door 4 is located below the second end of the crank 5, and a stopper 10 is fixedly provided on the vehicle body 8, the stopper 10 being located on the lower side when the crank 5 is located at the dead point position.
As can be seen from the above description, in the embodiment of the present invention, the vehicle body 8, the first link 2, the second link 3, and the crank 5 may form one four-bar linkage, and the vehicle body 8, the crank 5, the pull rod 6, and the bottom door 4 may form another four-bar linkage.
Fig. 4 is a schematic transmission diagram of the bottom door in an embodiment of the present invention from a closed state to an open state, and with reference to fig. 2 and fig. 4, the first connecting rod 2 is controlled to rotate clockwise, so that the second connecting rod 3 drives the crank 5 to rotate clockwise, the crank 5 rotates counterclockwise, the middle portion of the crank 5 is raised, and the pull rod 6 drives the bottom door 4 to rotate clockwise, so as to achieve an opening action of the bottom door 4, when the bottom door opening and closing mechanism crosses a dotted line position (i.e., a "dead point" position of the bottom door opening and closing mechanism) in fig. 4, due to the self weight of the bottom door 4 and the pressure of the goods on the bottom door 4, the bottom door 4 will be opened quickly, so as to achieve quick unloading of.
Fig. 5 is a schematic transmission diagram of the bottom door in an open state to a closed state according to an embodiment of the present invention, and with reference to fig. 3 and 5, the first connecting rod 2 is controlled to rotate counterclockwise, so that the second connecting rod 3 drives the crank 5 to rotate clockwise, the crank 5 rotates clockwise, the middle portion of the crank 5 is lowered, and the pull rod 6 drives the bottom door 4 to rotate counterclockwise, so as to achieve a closing action of the bottom door 4, when the bottom door opening and closing mechanism crosses a dotted line position (i.e. a "dead point" position of the bottom door opening and closing mechanism) in fig. 5, due to the self weight of the bottom door 4 and the continuous counterclockwise rotation of the first connecting rod 2, the crank 5 will continue to rotate clockwise, in order to ensure that the bottom door is in the closed state, the stop 10 can stop the clockwise rotation tendency of the crank 5, so as to ensure that the bottom door 4 always remains in the closed state, and due to the, the crank 5 can only generate clockwise rotation trend, but can not clockwise rotate, thereby ensuring the reliability of the closing state of the bottom door, in addition, when the crank 5 rotates to a dead point position, namely, the crank is driven by external force, and the crank 5 is prevented from rotating due to the limitation of the stop block 10, thereby preventing the problem of reliability caused by self-unloading of goods due to the fact that the bottom door is opened automatically in the running process of the vehicle, and ensuring the transportation safety of the goods and the safe operation of the vehicle.
Referring to fig. 1, a bottom of a vehicle body 8 according to an embodiment of the present invention may be provided with a beam 11, a long circular hole 12 is formed in a middle portion of the beam 11 along a length direction of the beam, a first connecting seat 12 and a second connecting seat 13 are respectively formed at a bottom of the beam 11, the first connecting seat 12 and the second connecting seat 13 are respectively disposed at two sides of the long circular hole 12 in the length direction, a first end of a first connecting rod 2 is rotatably connected to the first connecting seat 12, a second connecting rod 3 passes through the long circular hole 12, and a second end of a crank 5 is rotatably connected to the second connecting seat 13. The embodiment of the invention can provide an installation space for the bottom door opening and closing mechanism through the design of the long round hole 12.
Referring to fig. 1, in the embodiment of the present invention, the first connecting base 12 is rotatably provided with the connecting rod shaft 9, the first end of the first connecting rod 2 is fixedly connected to the connecting rod shaft 9, and the first connecting rod 2 can be driven to rotate clockwise or counterclockwise by driving the connecting rod shaft 9 to rotate.
In the embodiment of the present invention, the axial direction of the link shaft 9 may be the width direction of the vehicle body 8, that is, in the embodiment of the present invention, the bottom door is opened in the width direction of the vehicle body 8.
In the case where the bottom door is opened in the width direction of the vehicle body 8, the oblong hole 12 may be provided in the center sill 1 at the bottom of the vehicle body 8, and the first and second connecting seats 12 and 13 are also provided in the center sill.
Of course, the axial direction of the link shaft 9 may also be the length direction of the vehicle body 8, that is, in the embodiment of the present invention, the bottom door is appropriately deformed in the operating condition shown in fig. 1, so as to open along the length direction of the vehicle body 8, which is not limited in the embodiment of the present invention.
Referring to fig. 1, in the embodiment of the present invention, both ends of the link shaft 9 may be provided with driving blocks 1, and the driving blocks 1 are used for being connected with a component for driving the link shaft 9 to rotate, such as a rotating motor fixed on a vehicle body, or a manual wrench, etc., so as to implement manual operation.
In the embodiment of the invention, the section of the driving block 1 can be in a regular polygon shape, and the driving block can be matched with a manual wrench so as to facilitate manual operation.
In the embodiment of the invention, the second connecting rod 3 can be of a split structure so as to facilitate the installation of the bottom door opening and closing mechanism, when the bottom door opening and closing mechanism is installed, the rest parts of the bottom door opening and closing mechanism are installed firstly, the second connecting rod 3 is installed finally, and the second connecting rod 3 of the split structure is fixedly connected into a whole through bolts or rivets.
Fig. 6 is a schematic structural diagram of the crank shown in fig. 1, and with reference to fig. 1 and fig. 6, the crank 5 in the embodiment of the present invention includes two opposite clamping plates 5.1, first ends of two sides of the two opposite clamping plates 5.1 facing away from each other are respectively provided with a first rotating shaft 5.2, the two first rotating shafts 5.2 can be respectively rotatably connected with second ends of two second connecting rods 3, and accordingly, the first connecting rod 2 can be rotatably connected between the two third connecting rods 3, and the crank 5 is driven to rotate by one first connecting rod 2 and the two third connecting rods 3.
In addition, referring to fig. 1 and fig. 6, in the embodiment of the present invention, second rotating shafts 5.3 are respectively disposed at second ends of two opposite sides of the two opposite clamping plates 5.1, and the two second rotating shafts 5.3 are rotatably connected to the second connecting seat 13, so as to rotatably connect the crank 5 and the second connecting seat 13.
Referring to fig. 1 and 6, in the embodiment of the present invention, the first end of the pull rod 6 is located between the two clamping plates 5.1, and the first end of the pull rod 6 is rotatably connected to the middle portions of the two clamping plates 5.1 through the third rotating shaft 17, so as to rotatably connect the first end of the pull rod 6 to the crank 5.
In addition, in the embodiment of the present invention, the two clamping plates 5.1 may be provided with a gap at a position between the first end and the second end, and the gap may be a pull rod which is installed in the crank 5 in an embedded manner.
In the embodiment of the invention, the length of the pull rod 6 is adjustable, and the opening degree of the bottom door 4 can be adjusted through the pull rod with the adjustable length 6, so that the maintenance of the bottom door opening and closing mechanism is convenient.
Fig. 7 is a schematic structural diagram of the pull rod in fig. 1, and with reference to fig. 7, in an embodiment of the present invention, the pull rod 6 includes a first rod body 6.1 and a second rod body 6.2, each of which has a first end and a second end, the first end of the first rod body 6.1 is rotatably connected to the middle of the rocking handle 5, the second end of the first rod body 6.1 is screwed into the first end of the second rod body 6.2, the second end of the second rod body 6.2 is rotatably connected to the bottom of the bottom door 4, and the length of the pull rod 6 can be conveniently adjusted through the first rod body 6.1 and the second rod body 6.2 which are screwed together.
Further, referring to fig. 7, in the embodiment of the present invention, a first end of the first rod 6.1 is provided with a first connecting ring 6.3, and the first connecting ring 6.3 is rotatably connected to the two clamping plates 5.1 through a third rotating shaft 5.3; and a second end of the second rod 6.2 is provided with a second connecting ring 6.4, and the second connecting ring 6.4 is rotatably connected with the bottom of the bottom door 4 through a fourth rotating shaft 7.
The following embodiments are provided for the purpose of illustrating the present invention and are not to be construed as limiting the present invention in any way, and it will be apparent to those skilled in the art that the technical features of the present invention can be modified or changed in some ways without departing from the scope of the present invention.
Claims (9)
1. A bottom door opening and closing mechanism, comprising a first link (2), a second link (3), a crank (5), and a pull rod (6) each having a first end and a second end, wherein:
the first end of the first connecting rod (2) is rotatably connected to the bottom of the vehicle body (8), the first end of the second connecting rod (3) is rotatably connected to the second end of the first connecting rod (2), the second end of the second connecting rod (3) is rotatably connected to the first end of the crank (5), the second end of the crank (5) is rotatably connected to the bottom of the vehicle body (8), the middle of the crank (5) is rotatably connected to the first end of the pull rod (6), the second end of the crank (5) is oppositely arranged to the first end of the first connecting rod (2), the first end of the crank (5) and the second end of the crank (5) are both located on the same side of the middle of the crank (5), the second end of the pull rod (6) is rotatably connected to the bottom of the bottom door (4), the top of the bottom door (4) is rotatably connected to the vehicle body (8), the joint of the second end of the pull rod (6) and the bottom of the bottom door (4), and the joint of the top of the bottom door (4) and the vehicle body (8) are both positioned between the first end of the first connecting rod (2) and the second end of the crank (5), and the joint of the second end of the pull rod (6) and the bottom of the bottom door (4) is positioned below the second end of the crank (5);
the bottom door opening and closing mechanism further comprises a stop block (10), the stop block (10) is fixedly arranged on the vehicle body (8), and the stop block (10) is located on the lower side when the crank (5) is located at the dead point position.
2. The bottom door opening and closing mechanism according to claim 1, wherein a beam body (11) is arranged at the bottom of the vehicle body (8), a long circular hole (12) is formed in the middle of the beam body (11) along the length direction of the beam body, a first connecting seat (12) and a second connecting seat (13) are respectively arranged at the bottom of the beam body (11), the first connecting seat (12) and the second connecting seat (13) are respectively arranged at two sides of the long circular hole (12) in the length direction, a first end of the first connecting rod (2) is rotatably connected to the first connecting seat (12), the second connecting rod (3) penetrates through the long circular hole (12), and a second end of the crank (5) is rotatably connected to the second connecting seat (13).
3. A bottom door opening and closing mechanism according to claim 2, wherein a link shaft (9) is rotatably provided on the first connecting seat (12), and the first end of the first link (2) is fixedly connected to the link shaft (9).
4. The bottom door opening and closing mechanism according to claim 3, wherein both ends of the link shaft (9) are provided with driving blocks (1).
5. The bottom door opening and closing mechanism according to claim 3, wherein the axial direction of the link shaft (9) is the longitudinal direction of the vehicle body (8).
6. The bottom door opening and closing mechanism according to claim 2, wherein the crank (5) comprises two opposite clamping plates (5.1), first ends of two opposite sides of the two opposite clamping plates (5.1) are respectively provided with a first rotating shaft (5.2), the two first rotating shafts (5.2) can be respectively rotatably connected with second ends of the two second connecting rods (3), second ends of two opposite sides of the two opposite clamping plates (5.1) are respectively provided with a second rotating shaft (5.3), the two second rotating shafts (5.3) are rotatably connected on the second connecting seat (13), a first end of the pull rod (6) is located between the two clamping plates (5.1), and a first end of the pull rod (6) is rotatably connected with the middle parts of the two clamping plates (5.1) through a third rotating shaft (17).
7. A bottom door opening and closing mechanism according to claim 7, characterized in that the area between the first and second ends of both clamping plates (5.1) can be provided with a gap.
8. Bottom door opening and closing mechanism according to claim 2, characterized in that the length of the pull rod (6) is adjustable.
9. A hopper wagon, characterized in that the hopper wagon comprises a wagon body (8) and a bottom door (4), wherein the bottom door (4) is openably and closably arranged at the bottom of the wagon body (8) through the bottom door opening and closing mechanism of any one of claims 1 to 8.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911357647.9A CN111038534B (en) | 2019-12-25 | 2019-12-25 | Bottom door opening and closing mechanism and hopper car |
| MX2022006942A MX2022006942A (en) | 2019-12-25 | 2020-07-01 | Bottom door opening and closing mechanism and hopper car. |
| CA3140930A CA3140930C (en) | 2019-12-25 | 2020-07-01 | Bottom door opening and closing mechanism and hopper car |
| PCT/CN2020/099703 WO2021128790A1 (en) | 2019-12-25 | 2020-07-01 | Bottom door opening and closing mechanism and hopper car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911357647.9A CN111038534B (en) | 2019-12-25 | 2019-12-25 | Bottom door opening and closing mechanism and hopper car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111038534A true CN111038534A (en) | 2020-04-21 |
| CN111038534B CN111038534B (en) | 2023-06-27 |
Family
ID=70239600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911357647.9A Active CN111038534B (en) | 2019-12-25 | 2019-12-25 | Bottom door opening and closing mechanism and hopper car |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN111038534B (en) |
| CA (1) | CA3140930C (en) |
| MX (1) | MX2022006942A (en) |
| WO (1) | WO2021128790A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021128790A1 (en) * | 2019-12-25 | 2021-07-01 | 中车长江车辆有限公司 | Bottom door opening and closing mechanism and hopper car |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114620080B (en) * | 2022-03-18 | 2023-09-08 | 中车太原机车车辆有限公司 | Railway hopper car unloading mechanism for unloading in and out of track and hopper car |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085823A (en) * | 2011-10-28 | 2013-05-08 | 齐齐哈尔轨道交通装备有限责任公司 | Bottom door handling mechanism, bottom door device and bottom-door hopper car |
| CN103552567A (en) * | 2013-11-15 | 2014-02-05 | 南车长江车辆有限公司 | Locking devices and vehicle bottom doors |
| CN204150041U (en) * | 2014-10-15 | 2015-02-11 | 南车眉山车辆有限公司 | A kind of unidirectional automatic unloading hopper car |
| CN106926850A (en) * | 2017-04-24 | 2017-07-07 | 中车眉山车辆有限公司 | A kind of automobile-used rail mounted list fan bottom door independent control easing gear of railroad hopper |
| CN109625010A (en) * | 2018-11-20 | 2019-04-16 | 中车太原机车车辆有限公司 | Hopper wagon bottom door switching mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106627609B (en) * | 2016-11-23 | 2018-11-16 | 晋西铁路车辆有限责任公司 | A kind of hopper wagon that locking bottom is opened the door |
| US10648217B2 (en) * | 2017-04-19 | 2020-05-12 | National Steel Car Limited | Railroad hopper car body fittings |
| CN111038535B (en) * | 2019-12-25 | 2021-04-13 | 中车长江车辆有限公司 | Locking device and hopper car |
| CN111038534B (en) * | 2019-12-25 | 2023-06-27 | 中车长江车辆有限公司 | Bottom door opening and closing mechanism and hopper car |
| CN111038533B (en) * | 2019-12-25 | 2021-03-23 | 中车长江车辆有限公司 | Auxiliary opening device for bottom door and hopper car |
-
2019
- 2019-12-25 CN CN201911357647.9A patent/CN111038534B/en active Active
-
2020
- 2020-07-01 WO PCT/CN2020/099703 patent/WO2021128790A1/en active Application Filing
- 2020-07-01 MX MX2022006942A patent/MX2022006942A/en unknown
- 2020-07-01 CA CA3140930A patent/CA3140930C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085823A (en) * | 2011-10-28 | 2013-05-08 | 齐齐哈尔轨道交通装备有限责任公司 | Bottom door handling mechanism, bottom door device and bottom-door hopper car |
| CN103552567A (en) * | 2013-11-15 | 2014-02-05 | 南车长江车辆有限公司 | Locking devices and vehicle bottom doors |
| CN204150041U (en) * | 2014-10-15 | 2015-02-11 | 南车眉山车辆有限公司 | A kind of unidirectional automatic unloading hopper car |
| CN106926850A (en) * | 2017-04-24 | 2017-07-07 | 中车眉山车辆有限公司 | A kind of automobile-used rail mounted list fan bottom door independent control easing gear of railroad hopper |
| CN109625010A (en) * | 2018-11-20 | 2019-04-16 | 中车太原机车车辆有限公司 | Hopper wagon bottom door switching mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021128790A1 (en) * | 2019-12-25 | 2021-07-01 | 中车长江车辆有限公司 | Bottom door opening and closing mechanism and hopper car |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021128790A1 (en) | 2021-07-01 |
| CN111038534B (en) | 2023-06-27 |
| CA3140930C (en) | 2023-07-18 |
| CA3140930A1 (en) | 2021-07-01 |
| MX2022006942A (en) | 2022-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6955127B2 (en) | Manual railroad hopper car door actuating mechanism | |
| US8939088B2 (en) | Bottom door opening-closing mechanism, bottom door device and drop-bottom hopper car | |
| CN105151056B (en) | A kind of railway freight-car and its bodywork assembly | |
| CN111038534A (en) | Bottom door opening and closing mechanism and hopper car | |
| CN111038535B (en) | Locking device and hopper car | |
| AU2016378241A1 (en) | Hopper car body and hopper car for railway coal transportation | |
| CN103552565B (en) | A kind of link-type secondary latch closes device, hopper wagon bottom door and hopper wagon | |
| CN203698060U (en) | Hinge opening and closing mechanism of dumper cargo compartment board | |
| CN111038533B (en) | Auxiliary opening device for bottom door and hopper car | |
| CN211731365U (en) | Hopper car with bottom door limiting function | |
| CN106627609B (en) | A kind of hopper wagon that locking bottom is opened the door | |
| US3385231A (en) | Sequentially actuated mating hopper doors | |
| CN209274594U (en) | A kind of hopper wagon side door open and close system | |
| CN109398381A (en) | A kind of hopper wagon side door open and close system | |
| CN113665604B (en) | Bottom door opening device of railway wagon | |
| CN113665603B (en) | Railway hopper car track inboard unloading bottom door closing mechanism | |
| CN201646499U (en) | Efficient back door opening and closing mechanism for mine engineering self-unloading vehicle | |
| US3440761A (en) | Hopper door operating mechanism | |
| CN109484272B (en) | Rear compartment door auxiliary locking mechanism of dump truck | |
| CN111038536B (en) | Single-opening pressure bar type bottom door opening and closing mechanism and hopper car | |
| KR100498128B1 (en) | Freight car for railroad | |
| CN208429079U (en) | Vehicle bottom door open-close device and compartment and lorry | |
| CN109625015A (en) | A kind of slide-lifting door box car and application | |
| CN212738312U (en) | Rear door locking device of dumper | |
| CN208021457U (en) | A kind of safe blocking means of railway transportation bottom door hopper car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |