CA3140932C - Locking device and hopper car - Google Patents
Locking device and hopper car Download PDFInfo
- Publication number
- CA3140932C CA3140932C CA3140932A CA3140932A CA3140932C CA 3140932 C CA3140932 C CA 3140932C CA 3140932 A CA3140932 A CA 3140932A CA 3140932 A CA3140932 A CA 3140932A CA 3140932 C CA3140932 C CA 3140932C
- Authority
- CA
- Canada
- Prior art keywords
- guide plate
- driving
- crank
- rotatably connected
- locking device
- 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.)
- Active
Links
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
- B61D7/28—Opening or closing means hydraulic or pneumatic
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Lock And Its Accessories (AREA)
Abstract
The present disclosure discloses a locking device and a hopper car. A first end of a driving handle of the locking device is fixedly sleeved on a driving shaft (9); a driving fork (17) is fixedly arranged on an output end of a driving piece (16), and a second end of the driving handle (15) is rotatably arranged in a kidney-shaped hole (24) on the driving fork (17); a first guide plate (19) is arranged on the driving fork (17), and one end of a lock block (18) is arranged in a rotatable manner; a bulge (20) and a stop (21) are sequentially arranged on the lock block (18), and the end of the bulge (20) facing the first guide plate (19) is connected with the lock block (18) through a second guide plate (22); a second side surface of the first guide plate (19) can be arranged in a sliding manner with the second guide plate (22), and at least one of the second side surface of the first guide plate (19) and the second guide plate (22) is an inclined surface; the other end of the lock block (18) is provided with a third guide plate (23), and a first side surface of the first guide plate (19) and the third guide plate (23) are arranged in a sliding manner; at least one of the first side surface of the first guide plate (19) and the third guide plate (23) is an inclined surface. The present disclosure can reduce the manufacturing difficulty and manufacturing cost under the premise of ensuring the reliability of the opening/closing mechanism when the opening/closing mechanism is in a closed state.
Description
LOCKING DEVICE AND HOPPER CAR
CROSS-REFERENCES TO RELATED APPLICATIONS
[0001] The application claims the priority of the Chinese patent application filed on December 25, 2019, with an application number of 201911357557X and a title of "locking device and hopper car".
TECHNICAL FIELD
CROSS-REFERENCES TO RELATED APPLICATIONS
[0001] The application claims the priority of the Chinese patent application filed on December 25, 2019, with an application number of 201911357557X and a title of "locking device and hopper car".
TECHNICAL FIELD
[0002] The disclosure relates to the technical field of railway wagons, and in particular, to a locking device and a hopper car.
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION
[0003] A hopper car with a bottom door is mainly used to transport bulk cargo on railway lines.
After the hopper car arrives at a destination, the bulk cargo are unloaded onto a conveyor belt or into a pit in a manner of bottom unloading.
After the hopper car arrives at a destination, the bulk cargo are unloaded onto a conveyor belt or into a pit in a manner of bottom unloading.
[0004] In the existing technique, an unloading door (referred to as bottom door) at a bottom of the hopper car is generally opened and closed by an opening and closing mechanism.
The opening and closing mechanism serves as a key component of the railway hopper car, and its security and reliability directly affect the operation safety of the car. During a driving process of the car, generally a locking device is provided to prevent a driving shaft of the opening and closing mechanism from rotating, so as to prevent the opening and closing mechanism from self-opening, which leads to self-unloading of cargo. In this way, the reliability of the opening and closing mechanism in a closed state may be improved.
The opening and closing mechanism serves as a key component of the railway hopper car, and its security and reliability directly affect the operation safety of the car. During a driving process of the car, generally a locking device is provided to prevent a driving shaft of the opening and closing mechanism from rotating, so as to prevent the opening and closing mechanism from self-opening, which leads to self-unloading of cargo. In this way, the reliability of the opening and closing mechanism in a closed state may be improved.
[0005] The applicant finds that at least the following defects in the existing technique:
[0006] In the existing technique, since the locking device is complex in structure and high in assembly precision requirements, the reliability of the opening and closing mechanism is difficult to guarantee, meanwhile the production and manufacturing difficulty is increased and the manufacturing cost is increased.
[0007] Therefore, the existing techniques need to be improved so as to solve the technical problem in the existing technique that the reliability is difficult to guarantee due to the fact that the locking device is complex in structure and high in assembly precision requirements.
Date recue/Date received 2023-03-10 SUMMARY OF THE INVENTION
Date recue/Date received 2023-03-10 SUMMARY OF THE INVENTION
[0008] In view of the defects in the existing techniques, the disclosure provides a locking device and a hopper car. The locking device and the hopper car are simple and reliable, and assembly precision requirements are low. On the premise of ensuring the reliability of the opening and closing mechanism in the closed state, the production manufacturing difficulty and manufacturing cost can be reduced, so as to solve the technical problem in the existing technique that the reliability is difficult to guarantee due to the fact that the locking device is complex in structure and high in assembly precision requirements.
[0009] In an aspect of the disclosure, a locking device is provided. The locking device may comprise:
a driving shaft, being disposed to be rotatable, and a rotation of the driving shaft drives an opening and closing mechanism to operate so as to open and close a bottom door; a driving handle, having a first end and a second end; the first end of the driving handle is fixedly sleeved on the driving shaft, and the second end of the driving handle is arranged away from the driving shaft; a driving member, an output end of the driving member can move along a straight line, and a direction of a straight line movement is perpendicular to a central axis of the driving shaft; a driving fork, being fixedly arranged on the output end of the driving member, and a waist-shaped hole is formed in the driving fork; a length direction of the waist-shaped hole is the direction of the straight line movement, and the second end of the driving handle is disposed to be rotatable in the waist-shaped hole; a first guide plate is provided on a side of a peripheral face of the driving fork facing away from the driving shaft, and the first guide plate has a first side and a second side; the first side is a side of the first guide plate facing away from a fixed end of the driving member, and the second side is a side of the first guide plate facing the fixed end of the driving member; and a locking block, being arranged on a side of the driving fork facing away from the driving shaft, and an end of the locking block is disposed to be rotatable; a protrusion and a stop are sequentially provided on a side of a peripheral face of the locking block facing the driving fork, and the protrusion and the stop are sequentially arranged away from the first guide plate; the second end of the driving handle is operatively located between the protrusion and the stop, and an end of the protrusion facing the first guide plate is connected to the locking block by means of a second guide plate; the second side of the first guide plate and the second guide plate are arranged in a sliding manner, and at least one of the second side of the first guide plate and the second guide plate is a slope; an other end of the locking block is provided with a third guide plate; the first side of the first guide plate and the third guide plate are Date Recue/Date Received 202 1-1 1-17 arranged in a sliding manner, and at least one of the first side of the first guide plate and the third guide plate is a slope.
100101 In some embodiments of the disclosure, both the second guide plate and the third guide plate are slopes.
100111 In some embodiments of the disclosure, the first side of the first guide plate is a slope, and the second side of the first guide plate is a vertical face.
[0012] In some embodiments of the disclosure, the second side of the first guide plate and an end of the first guide plate away from the driving fork are transitioned through a chamfer.
[0013] In some embodiments of the disclosure, the locking device may further include a compression spring; and an end of the compression spring is disposed to be rotatable, and an other end of the compression spring is rotatably connected to an other end of the locking block.
[0014] In some embodiments of the disclosure, the driving member may include an air cylinder, a driving support, a driving plate seat and an adjusting nut; the driving plate seat is connected to the driving support by means of the adjusting nut; and a fixed end of the air cylinder is fixedly connected to the driving support, and an output end of the air cylinder is the output end of the driving member.
[0015] In another aspect of the disclosure, a hopper car is provided. The hopper car may comprise a bottom door, an opening and closing mechanism controlling the bottom door to open, and a locking device mentioned above; and the operation of the opening and closing mechanism can be controlled by means of the locking device.
[0016] In some embodiments of the disclosure, the opening and closing mechanism includes: a first connecting rod, a second connecting rod, a crank and a pull rod, each of which has a first end and a second end; the first end of the first connecting rod is rotatably connected to the driving shaft, and 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, and the second end of the crank is rotatably connected to a bottom of a car body; a middle portion of the crank is rotatably connected to the first end of the pull rod, and the second end of the crank and the first end of the first connecting rod are oppositely arranged;
the first end of the crank and the second end of the crank are both located at a same side of the middle portion of the crank, and the second end of the pull rod is rotatably connected to a bottom of a bottom door; a top of the bottom door is rotatably connected to the car body, and a joint of the second end of the pull rod and the bottom of the bottom door and a joint of the top of the bottom door and the car body are both Date Recue/Date Received 202 1-1 1-17 located between the first end of the first connecting rod and the second end of the crank; the joint of the second end of the pull rod and the bottom of the bottom door is located below the second end of the crank; and the opening and closing mechanism further includes a stop block; the stop block is fixedly arranged on the car body, and the stop block is located on a lower side of the crank when the crank is located at a dead center position.
[0017] In some embodiments of the disclosure, the crank may include two opposite clamping plates;
first ends of two opposite sides of the two opposite clamping plates are both provided with a first rotating shaft, and two first rotating shafts are rotatably connected to two second ends of the second connecting rods respectively; second ends of the two opposite sides of the two opposite clamping plates are both arranged with a second rotating shaft, and two second rotating shafts are rotatably connected to the second connecting seat; and the first end of the pull rod is located between the two clamping plates, and the first end of the pull rod is rotatably connected to a middle portion of the two clamping plates by means of a third rotating shaft.
[0018] In some embodiments of the disclosure, the pull rod includes a first rod body and a second rod body, each of which has a first end and a second end; the first end of the first rod body is rotatably connected to the middle portion of the crank; and the second end of the first rod body is threadedly connected in the first end of the second rod body, and the second end of the second rod body is rotatably connected to the bottom of the bottom door.
[0019] The disclosure at least has the following advantageous effects:
100201 First of all, with the locking device provided by the disclosure, when the bottom door and the opening and closing mechanism are in a closed state, the output end of the driving member is not started, while the second end of the driving handle may be located between the stop and the protrusion of the locking block, and the rotation of the driving handle is limited by means of the stop.
Therefore, the objective of controlling the operation of the opening and closing mechanism may be achieved, and further the reliability of the opening and closing mechanism in a closed state may be improved. When the bottom door needs to be opened, the locking device needs to be controlled to be unlocked. Under such working conditions, the output end of the driving member extends out. Since the waist-shaped hole is provided on the driving fork and the length direction of the waist-shaped hole is the extension direction of the output end of the driving member, the second end of the driving member can be disposed to be rotatable in the waist-shaped hole. Therefore, the output end of the driving member drives the driving fork to move for an idle stroke. During the idle stroke, the second side of the first guide plate on the peripheral face of the driving fork is in sliding fit with the second Date Recue/Date Received 202 1-1 1-17 guide plate on the locking block, pushing the locking block to rotate around an end of the locking block. Thus, the limitation of the stop of the locking block on the driving handle is eliminated, and enabling the opening and closing mechanism to operate normally. When the bottom door needs to be switched from the open state to the closed state, the output end of the driving member is retracted, and the bottom door returns along a path opposite to the opening. The first side of the first guide plate of the driving fork is in sliding fit with the third guide plate on the locking block, and the locking block reversely rotates around an end of the locking block under the action of gravity, so that the driving fork may be retracted along the same path. When the bottom door is in the closed state, under the action of gravity, the stop of the peripheral face of the locking block locks the second end of the driving handle, thereby the driving handle is hindered, so that the reliability of the opening and closing mechanism in the closed state is improved. Therefore, the locking device provided by the disclosure is simple and reliable in structure, and low in assembly precision requirements. On the premise of ensuring the reliability of the opening and closing mechanism in the closed state, the production manufacturing difficulty and manufacturing cost can be reduced, so as to solve the technical problem in the existing technique that the reliability is difficult to guarantee due to the fact that the locking device is complex in structure and high in assembly precision requirements.
[0021] Secondly, the hopper car provided by the disclosure includes a bottom door, an opening and closing mechanism controlling the bottom door to open and the locking device.
The locking device is simple and reliable in structure, and low in assembly precision requirements. The operation of the opening and closing mechanism may be controlled by means of the locking device, so that the objective of controlling the operation of the opening and closing mechanism is achieved. Therefore, the reliability of the opening and closing mechanism in the closed state is improved. Furthermore, on the premise of ensuring the reliability of the opening and closing mechanism in the closed state, the production manufacturing difficulty and manufacturing cost can be reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to illustrate technical solutions in the embodiments of the disclosure more clearly, a brief description is made below to the drawings used in the description of the embodiments.
Apparently, the drawings to be described below are merely some embodiments of the disclosure.
Those of ordinary skill in the art may further obtain other drawings according to these drawings without creative effort.
[0023] FIG. 1 shows a schematic view of an arrangement of an opening and closing mechanism on a car body according to the embodiments of the disclosure;
Date Recue/Date Received 202 1-1 1-17 [0024] FIG. 2 shows a schematic view of a state when the bottom door is closed;
[0025] FIG. 3 shows a schematic view of a state when the bottom door is opened;
[0026] FIG. 4 shows a schematic view of a transmission of the bottom door from a closed state to an open state according to the embodiments of the disclosure;
[0027] FIG. 5 shows a schematic view of a transmission of the bottom door from an open state to a closed state according to the embodiments of the disclosure;
[0028] FIG. 6 shows a structural schematic view of the crank in FIG. 1;
[0029] FIG. 7 shows a structural schematic view of the pull rod in FIG. 1;
[0030] FIG. 8 shows a structural schematic view of the bottom door in FIG. 1;
[0031] FIG. 9 shows a structural schematic view of the hopper car with the locking device according to the embodiments of the disclosure;
[0032] FIG. 10 shows a schematic view of a cooperation of the locking device and the opening and closing mechanism in FIG. 9;
[0033] FIG. 11 shows a structural schematic view of the locking device in FIG.
9; and [0034] FIG. 12 shows a schematic view of an installation of the driving member in FIG. 9.
DETAILED DESCRIPTION OF THE INVENTION
[0035] Technical solutions in the embodiments of the disclosure will be clearly and completely described in conjunction with the drawings in the embodiments of the disclosure. Obviously, the embodiments to be described are only a portion of rather than all of the embodiments of the disclosure. Based on the embodiments of the disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the disclosure.
[0036] The embodiments of the disclosure provide a hopper car. The hopper car includes a car body and a bottom door, wherein the bottom door is disposed at a bottom of the car body in an openable and closable manner by means of an opening and closing mechanism, so as to realize opening and closing actions of the bottom door.
[0037] FIG. 1 is a schematic view of an arrangement of the opening and closing mechanism on the car body according to the embodiments of the disclosure. FIG. 2 is a schematic view of a state when the bottom door is closed. FIG. 3 is a schematic view of a state when the bottom door is open. With reference to FIG. 1 to FIG. 3, the opening and closing mechanism of the embodiments of the disclosure may include a stop block 10, and a first connecting rod 2, a second connecting rod 3, a rank 5 and a pull rod 6, each of which has a first end and a second end.
Date Recue/Date Received 202 1-1 1-17 [0038] With reference to FIG. 1 to FIG. 3, in some embodiments of the disclosure, the first end of the first connecting rod 2 is rotatably connected to a bottom of a car 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 car body 8; a middle portion of the crank 5 is rotatably connected to the first end of the pull rod 6; the second end of the crank 5 is disposed opposite 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 at a same side of the middle portion of the crank 5, i.e., the crank 5 can be in a U-shape as a whole. The second end of the pull rod 6 is rotatably connected to the bottom of a bottom door 4; a top of the bottom door 4 is rotatably connected to the car body 8;
a joint of the second end of the pull rod 6 and the bottom of the bottom door 4 and a joint of the top of the bottom door 4 and the car body 8 are both located between the first end of the first connecting rod 2 and the second end of the crank 5; the joint 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 the stop block 10 may be fixedly disposed on the car body 8, and the stop block 10 may be located on a lower side of the crank when the crank 5 is located at a dead center position.
[0039] In some embodiments of the disclosure, the car body 8, the first connecting rod 2, the second connecting rod 3 and the crank 5 may form a four-bar linkage mechanism, while the car body 8, the crank 5, the pull rod 6 and the bottom door 4 may form another four-bar linkage mechanism. The opening and closing mechanism provided by the disclosure utilizes two four-bar linkage mechanisms to realize the opening and closing of the bottom door, with characteristics of a simple structure and low manufacturing and maintenance costs.
[0040] FIG. 4 is a schematic view of a transmission of the bottom door from a closed state to an open state according to the embodiments of the disclosure. With reference to FIG. 2 and FIG. 4, in some embodiments of the disclosure, the first connecting rod 2 is controlled to rotate clockwise, so that the crank 5 can be driven to rotate counterclockwise by means of the second connecting rod 3;
the counterclockwise rotation of the crank 5 may cause the middle portion of the crank 5 to be raised, and then the bottom door 4 can be driven to rotate clockwise by means of the pull rod 6, so that an opening action of the bottom door 4 can be realized. When the opening and closing mechanism crosses the dotted line position (i.e., the "dead center" position of the opening and closing mechanism) in FIG. 4, the bottom door 4 will quickly be opened due to the dead weight of the Date Recue/Date Received 202 1-1 1-17 bottom door 4 and the pressure of cargo on the bottom door 4, so as to realize the fast unloading of cargo.
[0041] FIG. 5 is a schematic view of a transmission of the bottom door from an open state to a closed state according to the embodiments of the disclosure. With reference to FIG. 3 and FIG. 5, the first connecting rod 2 is controlled to rotate counterclockwise, so that the crank 5 is driven to rotate clockwise by means of the second connecting rod 3; the clockwise rotation of the crank 5 may cause the middle portion of the crank 5 to be lowered, and then the bottom door 4 can be driven to rotate counterlockwise by means of the pull rod 6, so that a closing action of the bottom door 4 can be realized. When the opening and closing mechanism crosses the dotted line position (i.e., the "dead center" position of the opening and closing mechanism) in FIG. 5, the crank 5 will continue to rotate clockwise due to the dead weight of the bottom door 4 and the continuous counterclockwise rotation of the first connecting rod 2. In order to ensure that the bottom door is in a closed state, a clockwise rotation trend of the crank 5 can be prevented by the stop block 10, so as to ensure that the bottom door 4 is always kept in the closed state; due to the fact that the opening and closing mechanism crosses the "dead center", the crank 5 can only produce a clockwise rotation trend rather than a clockwise rotation, thus ensuring the reliability of the closed state of the bottom door. In addition, when the crank 5 rotates to the dead center position, even if the crank is driven by an external force, the crank 5 is prevented from rotating due to a limitation of the stop block
a driving shaft, being disposed to be rotatable, and a rotation of the driving shaft drives an opening and closing mechanism to operate so as to open and close a bottom door; a driving handle, having a first end and a second end; the first end of the driving handle is fixedly sleeved on the driving shaft, and the second end of the driving handle is arranged away from the driving shaft; a driving member, an output end of the driving member can move along a straight line, and a direction of a straight line movement is perpendicular to a central axis of the driving shaft; a driving fork, being fixedly arranged on the output end of the driving member, and a waist-shaped hole is formed in the driving fork; a length direction of the waist-shaped hole is the direction of the straight line movement, and the second end of the driving handle is disposed to be rotatable in the waist-shaped hole; a first guide plate is provided on a side of a peripheral face of the driving fork facing away from the driving shaft, and the first guide plate has a first side and a second side; the first side is a side of the first guide plate facing away from a fixed end of the driving member, and the second side is a side of the first guide plate facing the fixed end of the driving member; and a locking block, being arranged on a side of the driving fork facing away from the driving shaft, and an end of the locking block is disposed to be rotatable; a protrusion and a stop are sequentially provided on a side of a peripheral face of the locking block facing the driving fork, and the protrusion and the stop are sequentially arranged away from the first guide plate; the second end of the driving handle is operatively located between the protrusion and the stop, and an end of the protrusion facing the first guide plate is connected to the locking block by means of a second guide plate; the second side of the first guide plate and the second guide plate are arranged in a sliding manner, and at least one of the second side of the first guide plate and the second guide plate is a slope; an other end of the locking block is provided with a third guide plate; the first side of the first guide plate and the third guide plate are Date Recue/Date Received 202 1-1 1-17 arranged in a sliding manner, and at least one of the first side of the first guide plate and the third guide plate is a slope.
100101 In some embodiments of the disclosure, both the second guide plate and the third guide plate are slopes.
100111 In some embodiments of the disclosure, the first side of the first guide plate is a slope, and the second side of the first guide plate is a vertical face.
[0012] In some embodiments of the disclosure, the second side of the first guide plate and an end of the first guide plate away from the driving fork are transitioned through a chamfer.
[0013] In some embodiments of the disclosure, the locking device may further include a compression spring; and an end of the compression spring is disposed to be rotatable, and an other end of the compression spring is rotatably connected to an other end of the locking block.
[0014] In some embodiments of the disclosure, the driving member may include an air cylinder, a driving support, a driving plate seat and an adjusting nut; the driving plate seat is connected to the driving support by means of the adjusting nut; and a fixed end of the air cylinder is fixedly connected to the driving support, and an output end of the air cylinder is the output end of the driving member.
[0015] In another aspect of the disclosure, a hopper car is provided. The hopper car may comprise a bottom door, an opening and closing mechanism controlling the bottom door to open, and a locking device mentioned above; and the operation of the opening and closing mechanism can be controlled by means of the locking device.
[0016] In some embodiments of the disclosure, the opening and closing mechanism includes: a first connecting rod, a second connecting rod, a crank and a pull rod, each of which has a first end and a second end; the first end of the first connecting rod is rotatably connected to the driving shaft, and 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, and the second end of the crank is rotatably connected to a bottom of a car body; a middle portion of the crank is rotatably connected to the first end of the pull rod, and the second end of the crank and the first end of the first connecting rod are oppositely arranged;
the first end of the crank and the second end of the crank are both located at a same side of the middle portion of the crank, and the second end of the pull rod is rotatably connected to a bottom of a bottom door; a top of the bottom door is rotatably connected to the car body, and a joint of the second end of the pull rod and the bottom of the bottom door and a joint of the top of the bottom door and the car body are both Date Recue/Date Received 202 1-1 1-17 located between the first end of the first connecting rod and the second end of the crank; the joint of the second end of the pull rod and the bottom of the bottom door is located below the second end of the crank; and the opening and closing mechanism further includes a stop block; the stop block is fixedly arranged on the car body, and the stop block is located on a lower side of the crank when the crank is located at a dead center position.
[0017] In some embodiments of the disclosure, the crank may include two opposite clamping plates;
first ends of two opposite sides of the two opposite clamping plates are both provided with a first rotating shaft, and two first rotating shafts are rotatably connected to two second ends of the second connecting rods respectively; second ends of the two opposite sides of the two opposite clamping plates are both arranged with a second rotating shaft, and two second rotating shafts are rotatably connected to the second connecting seat; and the first end of the pull rod is located between the two clamping plates, and the first end of the pull rod is rotatably connected to a middle portion of the two clamping plates by means of a third rotating shaft.
[0018] In some embodiments of the disclosure, the pull rod includes a first rod body and a second rod body, each of which has a first end and a second end; the first end of the first rod body is rotatably connected to the middle portion of the crank; and the second end of the first rod body is threadedly connected in the first end of the second rod body, and the second end of the second rod body is rotatably connected to the bottom of the bottom door.
[0019] The disclosure at least has the following advantageous effects:
100201 First of all, with the locking device provided by the disclosure, when the bottom door and the opening and closing mechanism are in a closed state, the output end of the driving member is not started, while the second end of the driving handle may be located between the stop and the protrusion of the locking block, and the rotation of the driving handle is limited by means of the stop.
Therefore, the objective of controlling the operation of the opening and closing mechanism may be achieved, and further the reliability of the opening and closing mechanism in a closed state may be improved. When the bottom door needs to be opened, the locking device needs to be controlled to be unlocked. Under such working conditions, the output end of the driving member extends out. Since the waist-shaped hole is provided on the driving fork and the length direction of the waist-shaped hole is the extension direction of the output end of the driving member, the second end of the driving member can be disposed to be rotatable in the waist-shaped hole. Therefore, the output end of the driving member drives the driving fork to move for an idle stroke. During the idle stroke, the second side of the first guide plate on the peripheral face of the driving fork is in sliding fit with the second Date Recue/Date Received 202 1-1 1-17 guide plate on the locking block, pushing the locking block to rotate around an end of the locking block. Thus, the limitation of the stop of the locking block on the driving handle is eliminated, and enabling the opening and closing mechanism to operate normally. When the bottom door needs to be switched from the open state to the closed state, the output end of the driving member is retracted, and the bottom door returns along a path opposite to the opening. The first side of the first guide plate of the driving fork is in sliding fit with the third guide plate on the locking block, and the locking block reversely rotates around an end of the locking block under the action of gravity, so that the driving fork may be retracted along the same path. When the bottom door is in the closed state, under the action of gravity, the stop of the peripheral face of the locking block locks the second end of the driving handle, thereby the driving handle is hindered, so that the reliability of the opening and closing mechanism in the closed state is improved. Therefore, the locking device provided by the disclosure is simple and reliable in structure, and low in assembly precision requirements. On the premise of ensuring the reliability of the opening and closing mechanism in the closed state, the production manufacturing difficulty and manufacturing cost can be reduced, so as to solve the technical problem in the existing technique that the reliability is difficult to guarantee due to the fact that the locking device is complex in structure and high in assembly precision requirements.
[0021] Secondly, the hopper car provided by the disclosure includes a bottom door, an opening and closing mechanism controlling the bottom door to open and the locking device.
The locking device is simple and reliable in structure, and low in assembly precision requirements. The operation of the opening and closing mechanism may be controlled by means of the locking device, so that the objective of controlling the operation of the opening and closing mechanism is achieved. Therefore, the reliability of the opening and closing mechanism in the closed state is improved. Furthermore, on the premise of ensuring the reliability of the opening and closing mechanism in the closed state, the production manufacturing difficulty and manufacturing cost can be reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to illustrate technical solutions in the embodiments of the disclosure more clearly, a brief description is made below to the drawings used in the description of the embodiments.
Apparently, the drawings to be described below are merely some embodiments of the disclosure.
Those of ordinary skill in the art may further obtain other drawings according to these drawings without creative effort.
[0023] FIG. 1 shows a schematic view of an arrangement of an opening and closing mechanism on a car body according to the embodiments of the disclosure;
Date Recue/Date Received 202 1-1 1-17 [0024] FIG. 2 shows a schematic view of a state when the bottom door is closed;
[0025] FIG. 3 shows a schematic view of a state when the bottom door is opened;
[0026] FIG. 4 shows a schematic view of a transmission of the bottom door from a closed state to an open state according to the embodiments of the disclosure;
[0027] FIG. 5 shows a schematic view of a transmission of the bottom door from an open state to a closed state according to the embodiments of the disclosure;
[0028] FIG. 6 shows a structural schematic view of the crank in FIG. 1;
[0029] FIG. 7 shows a structural schematic view of the pull rod in FIG. 1;
[0030] FIG. 8 shows a structural schematic view of the bottom door in FIG. 1;
[0031] FIG. 9 shows a structural schematic view of the hopper car with the locking device according to the embodiments of the disclosure;
[0032] FIG. 10 shows a schematic view of a cooperation of the locking device and the opening and closing mechanism in FIG. 9;
[0033] FIG. 11 shows a structural schematic view of the locking device in FIG.
9; and [0034] FIG. 12 shows a schematic view of an installation of the driving member in FIG. 9.
DETAILED DESCRIPTION OF THE INVENTION
[0035] Technical solutions in the embodiments of the disclosure will be clearly and completely described in conjunction with the drawings in the embodiments of the disclosure. Obviously, the embodiments to be described are only a portion of rather than all of the embodiments of the disclosure. Based on the embodiments of the disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the disclosure.
[0036] The embodiments of the disclosure provide a hopper car. The hopper car includes a car body and a bottom door, wherein the bottom door is disposed at a bottom of the car body in an openable and closable manner by means of an opening and closing mechanism, so as to realize opening and closing actions of the bottom door.
[0037] FIG. 1 is a schematic view of an arrangement of the opening and closing mechanism on the car body according to the embodiments of the disclosure. FIG. 2 is a schematic view of a state when the bottom door is closed. FIG. 3 is a schematic view of a state when the bottom door is open. With reference to FIG. 1 to FIG. 3, the opening and closing mechanism of the embodiments of the disclosure may include a stop block 10, and a first connecting rod 2, a second connecting rod 3, a rank 5 and a pull rod 6, each of which has a first end and a second end.
Date Recue/Date Received 202 1-1 1-17 [0038] With reference to FIG. 1 to FIG. 3, in some embodiments of the disclosure, the first end of the first connecting rod 2 is rotatably connected to a bottom of a car 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 car body 8; a middle portion of the crank 5 is rotatably connected to the first end of the pull rod 6; the second end of the crank 5 is disposed opposite 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 at a same side of the middle portion of the crank 5, i.e., the crank 5 can be in a U-shape as a whole. The second end of the pull rod 6 is rotatably connected to the bottom of a bottom door 4; a top of the bottom door 4 is rotatably connected to the car body 8;
a joint of the second end of the pull rod 6 and the bottom of the bottom door 4 and a joint of the top of the bottom door 4 and the car body 8 are both located between the first end of the first connecting rod 2 and the second end of the crank 5; the joint 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 the stop block 10 may be fixedly disposed on the car body 8, and the stop block 10 may be located on a lower side of the crank when the crank 5 is located at a dead center position.
[0039] In some embodiments of the disclosure, the car body 8, the first connecting rod 2, the second connecting rod 3 and the crank 5 may form a four-bar linkage mechanism, while the car body 8, the crank 5, the pull rod 6 and the bottom door 4 may form another four-bar linkage mechanism. The opening and closing mechanism provided by the disclosure utilizes two four-bar linkage mechanisms to realize the opening and closing of the bottom door, with characteristics of a simple structure and low manufacturing and maintenance costs.
[0040] FIG. 4 is a schematic view of a transmission of the bottom door from a closed state to an open state according to the embodiments of the disclosure. With reference to FIG. 2 and FIG. 4, in some embodiments of the disclosure, the first connecting rod 2 is controlled to rotate clockwise, so that the crank 5 can be driven to rotate counterclockwise by means of the second connecting rod 3;
the counterclockwise rotation of the crank 5 may cause the middle portion of the crank 5 to be raised, and then the bottom door 4 can be driven to rotate clockwise by means of the pull rod 6, so that an opening action of the bottom door 4 can be realized. When the opening and closing mechanism crosses the dotted line position (i.e., the "dead center" position of the opening and closing mechanism) in FIG. 4, the bottom door 4 will quickly be opened due to the dead weight of the Date Recue/Date Received 202 1-1 1-17 bottom door 4 and the pressure of cargo on the bottom door 4, so as to realize the fast unloading of cargo.
[0041] FIG. 5 is a schematic view of a transmission of the bottom door from an open state to a closed state according to the embodiments of the disclosure. With reference to FIG. 3 and FIG. 5, the first connecting rod 2 is controlled to rotate counterclockwise, so that the crank 5 is driven to rotate clockwise by means of the second connecting rod 3; the clockwise rotation of the crank 5 may cause the middle portion of the crank 5 to be lowered, and then the bottom door 4 can be driven to rotate counterlockwise by means of the pull rod 6, so that a closing action of the bottom door 4 can be realized. When the opening and closing mechanism crosses the dotted line position (i.e., the "dead center" position of the opening and closing mechanism) in FIG. 5, the crank 5 will continue to rotate clockwise due to the dead weight of the bottom door 4 and the continuous counterclockwise rotation of the first connecting rod 2. In order to ensure that the bottom door is in a closed state, a clockwise rotation trend of the crank 5 can be prevented by the stop block 10, so as to ensure that the bottom door 4 is always kept in the closed state; due to the fact that the opening and closing mechanism crosses the "dead center", the crank 5 can only produce a clockwise rotation trend rather than a clockwise rotation, thus ensuring the reliability of the closed state of the bottom door. In addition, when the crank 5 rotates to the dead center position, even if the crank is driven by an external force, the crank 5 is prevented from rotating due to a limitation of the stop block
10, thereby preventing the car from self-unloading due to a self-opening of the bottom door during a driving process. As such, the reliability of the car can be improved in order to ensure safe transportation of cargo and the safe operation of the car.
[0042] With reference to FIG. 1, in some embodiments of the disclosure, the bottom of the car body 8 may be provided with a beam body 11. A middle portion of the beam body 11 may be provided with a slotted hole 12 along a length direction of the beam body 11, and a main shaft support and a crank support 13 may be respectively provided at a bottom of the beam body 11.
The main shaft support and the crank support 13 may be respectively arranged on two sides of a length direction of the slotted hole 12. The first end of the first connecting rod 2 is rotatably connected to the main shaft support. The second connecting rod 3 may pass by means of the slotted hole 12.
The second end of the crank 5 is rotatably connected to the crank support 13. In some embodiments of the disclosure, with a design of the slotted hole 12, mounting space may be provided for the opening and closing mechanism.
Date Recue/Date Received 202 1-1 1-17 [0043] As shown in FIG. 1, in some embodiments of the disclosure, a driving shaft 9 may be disposed to be rotatable on the main shaft support, and the first end of the first connecting rod 2 may be fixedly connected to the driving shaft 9. By driving the driving shaft 9 to rotate, the first connecting rod 2 may be driven to rotate clockwise or counterclockwise.
[0044] In some embodiments of the disclosure, an axial direction of the driving shaft 9 can be a width direction of the car body 8. In some embodiments of the disclosure, the bottom door may be opened along the width direction of the car body 8.
[0045] In some embodiments of the disclosure, when the bottom door is opened along the width direction of the car body 8, the slotted hole 12 may be arranged on a middle beam 1 at the bottom of the car body 8, and the main shaft support and the crank support 13 may also be arranged on the middle beam.
[0046] In some embodiments of the disclosure, the axial direction of the driving shaft 9 may also be a length direction of the car body 8. In some embodiments of the disclosure, proper deformation may be made under working conditions shown in FIG. 1, so that the bottom door may be opened along the length direction of the car body 8, and the disclosure is not limited thereto.
[0047] As shown in FIG. 1, in some embodiments of the disclosure, two ends of the driving shaft 9 may be both provided with a driving block 1. The driving block 1 is used to connect with a component that drives the driving shaft 9 to rotate, such as a rotating motor fixed on the car body, or a wrench tool capable of realizing manual operation and the like, and the disclosure is not limited thereto.
[0048] In some embodiments of the disclosure, a cross section of the driving block 1 may be a regular polygon, which may be matched with a wrench tool to facilitate manual operation.
[0049] In some embodiments of the disclosure, the second connecting rod 3 may be a split structure to facilitate the installation of the opening and closing mechanism. During installation, remaining components of the opening and closing mechanism are firstly installed, the second connecting rod 3 is finally installed, and the second connecting rod 3 of the split structure is fixedly connected into a whole by means of bolts or rivets.
[0050] FIG. 6 is a structural schematic view of the crank in FIG. 1. With reference to FIG. 1 and FIG. 6, in some embodiments of the disclosure, the crank 5 may include two opposite clamping plates 5.1. First ends of two opposite sides of the two opposite clamping plates 5.1 may be both provided with a first rotating shaft 5.2. Two first rotating shafts 5.2 may be rotatably connected to two second ends of the second connecting rods 3 respectively. In some embodiments of the Date Recue/Date Received 202 1-1 1-17 disclosure, the first connecting rod 2 may be disposed to be rotatable between two third connecting rods 3, and the crank 5 is driven to rotate by means of one first connecting rod 2 and two third connecting rods 3.
[0051] With reference to FIG. 1 and FIG. 6, in some embodiments of the disclosure, second ends of the two opposite sides of the two opposite clamping plates 5.1 may be both provided with a second rotating shaft 5.3. Two second rotating shafts 5.3 are rotatably connected to the second connecting seat 13 to realize the rotatable connection of the crank 5 and the second connecting seat 13.
[0052] With reference to FIG. 1 and FIG. 6, in some embodiments of the disclosure, the first end of the pull rod 6 may be located between the two clamping plates 5.1. The first end of the pull rod 6 may be rotatably connected with a middle portion of the two clamping plates 5.1 by means of a third rotating shaft 14, so as to realize the a rotatable connection of the first end of the pull rod 6 and the crank 5.
[0053] In some embodiments of the disclosure, parts between the first end and the second end of the two clamping plates 5.1 may be both provided with a notch. The notch enables the pull rod to be mounted in the crank 5 in an embedded form.
[0054] In some embodiments of the disclosure, a length of the pull rod 6 is adjustable. Through the length-adjustable pull rod 6, an opening degree of the bottom door 4 can be adjusted to facilitate the maintenance of the opening and closing mechanism.
[0055] FIG. 7 is a structural schematic view of the pull rod in FIG. 1. With reference to FIG. 7, in some embodiments of the disclosure, the pull rod 6 may include a first rod body 6.1 and a second rod body 6.2, each of which having a first end and a second end. The first end of the first rod body 6.1 is rotatably connected to a middle portion of a rocking handle 5. The second end of the first rod body 6.1 may be threadedly connected in 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. Through a threaded connection of the first rod body 6.1 and the second rod body 6.2, the length of the pull rod 6 may be adjusted conveniently.
[0056] With reference to FIG. 7, in some embodiments of the disclosure, the first end of the first rod body 6.1 may be provided with a first connecting ring 6.3, the first connecting ring 6.3 may be rotatably connected to the two clamping plates 5.1 by means of a third rotating shaft. The second end of the second rod body 6.2 may be provided with a second connecting ring 6.4, the second connecting ring 6.4 is rotatably connected to the bottom of the bottom door 4 by means of a fourth rotating shaft 7.
Date Recue/Date Received 202 1-1 1-17 [0057] FIG. 8 is a structural schematic view of the bottom door in FIG. 1. As shown in FIG. 8, in some embodiments of the disclosure, the bottom door 4 may include a door plate 4.1, a hinge 4.2, a pull rod support 4.3 and a connecting beam 4.4. In some embodiments, two the door plates 4.1 may be arranged opposite to each other and may be connected in to a whole by means of the connecting beam 4.4. An avoidance space may be arranged between the two door plates 4.1 so as to avoid the middle beam. The two door plates 4.1 may be respectively provided with a plurality of hinges 4.2, so as to be rotatably connected to the car body 8. The pull rod support 4.3 may be fixedly arranged on the connecting beam 4.4 between the two door plates 4.1 so as to be connected to the pull rod 6.
[0058] In some embodiments of the disclosure, to prevent the opening and closing mechanism from being self-opening and occurrence of cargo self-unloading, a locking device can be generally provided to prevent the driving shaft 9 of the opening and closing mechanism from rotating, so as to improve the reliability of the opening and closing mechanism in a closed state.
[0059] FIG. 9 is a structural schematic view of the hopper car with the locking device. FIG. 10 is a schematic view of a cooperation of the locking device and the opening and closing mechanism in FIG. 9. FIG. 11 is a structural schematic view of the locking device in FIG.
9. With reference to FIG.
9 to FIG. 11, in some embodiments of the disclosure, the locking device may include a driving shaft 9, a driving handle 15, a driving member 16, a driving fork 17 and a locking block 18. in some embodiments, the driving shaft 9 can be disposed to be rotatable, and a rotation of the driving shaft 9 may drive the opening and closing mechanism to operate so as to open and close the bottom door.
[0060] With reference to FIG. 9 to FIG. 11, in some embodiments of the disclosure, the driving handle 15 may have a first end and a second end. The first end of the driving handle 15 may be fixedly sleeved on the driving shaft 9, and the second end of the driving handle 15 may be arranged away from the driving shaft 9. By controlling a rotation of the driving handle 15, the driving shaft 9 may be driven to rotate, and thereby further controlling the operation of the opening and closing mechanism.
[0061] With reference to FIG. 9 to FIG. 11, in some embodiments of the disclosure, an output end of the driving member 16 may move along a straight line, a the direction of a straight line movement may be perpendicular to a central axis of the driving shaft 9. The driving fork 17 may be fixedly arranged on the output end of the driving member 16. A waist-shaped hole 24 may be formed in the driving fork 17. A length direction of the waist-shaped hole 24 may be the direction of the straight line movement. The second end of the driving handle 15 is disposed to be rotatable in the waist-shaped hole 24. A first guide plate 19 may be provided on a side of a peripheral face of the driving
[0042] With reference to FIG. 1, in some embodiments of the disclosure, the bottom of the car body 8 may be provided with a beam body 11. A middle portion of the beam body 11 may be provided with a slotted hole 12 along a length direction of the beam body 11, and a main shaft support and a crank support 13 may be respectively provided at a bottom of the beam body 11.
The main shaft support and the crank support 13 may be respectively arranged on two sides of a length direction of the slotted hole 12. The first end of the first connecting rod 2 is rotatably connected to the main shaft support. The second connecting rod 3 may pass by means of the slotted hole 12.
The second end of the crank 5 is rotatably connected to the crank support 13. In some embodiments of the disclosure, with a design of the slotted hole 12, mounting space may be provided for the opening and closing mechanism.
Date Recue/Date Received 202 1-1 1-17 [0043] As shown in FIG. 1, in some embodiments of the disclosure, a driving shaft 9 may be disposed to be rotatable on the main shaft support, and the first end of the first connecting rod 2 may be fixedly connected to the driving shaft 9. By driving the driving shaft 9 to rotate, the first connecting rod 2 may be driven to rotate clockwise or counterclockwise.
[0044] In some embodiments of the disclosure, an axial direction of the driving shaft 9 can be a width direction of the car body 8. In some embodiments of the disclosure, the bottom door may be opened along the width direction of the car body 8.
[0045] In some embodiments of the disclosure, when the bottom door is opened along the width direction of the car body 8, the slotted hole 12 may be arranged on a middle beam 1 at the bottom of the car body 8, and the main shaft support and the crank support 13 may also be arranged on the middle beam.
[0046] In some embodiments of the disclosure, the axial direction of the driving shaft 9 may also be a length direction of the car body 8. In some embodiments of the disclosure, proper deformation may be made under working conditions shown in FIG. 1, so that the bottom door may be opened along the length direction of the car body 8, and the disclosure is not limited thereto.
[0047] As shown in FIG. 1, in some embodiments of the disclosure, two ends of the driving shaft 9 may be both provided with a driving block 1. The driving block 1 is used to connect with a component that drives the driving shaft 9 to rotate, such as a rotating motor fixed on the car body, or a wrench tool capable of realizing manual operation and the like, and the disclosure is not limited thereto.
[0048] In some embodiments of the disclosure, a cross section of the driving block 1 may be a regular polygon, which may be matched with a wrench tool to facilitate manual operation.
[0049] In some embodiments of the disclosure, the second connecting rod 3 may be a split structure to facilitate the installation of the opening and closing mechanism. During installation, remaining components of the opening and closing mechanism are firstly installed, the second connecting rod 3 is finally installed, and the second connecting rod 3 of the split structure is fixedly connected into a whole by means of bolts or rivets.
[0050] FIG. 6 is a structural schematic view of the crank in FIG. 1. With reference to FIG. 1 and FIG. 6, in some embodiments of the disclosure, the crank 5 may include two opposite clamping plates 5.1. First ends of two opposite sides of the two opposite clamping plates 5.1 may be both provided with a first rotating shaft 5.2. Two first rotating shafts 5.2 may be rotatably connected to two second ends of the second connecting rods 3 respectively. In some embodiments of the Date Recue/Date Received 202 1-1 1-17 disclosure, the first connecting rod 2 may be disposed to be rotatable between two third connecting rods 3, and the crank 5 is driven to rotate by means of one first connecting rod 2 and two third connecting rods 3.
[0051] With reference to FIG. 1 and FIG. 6, in some embodiments of the disclosure, second ends of the two opposite sides of the two opposite clamping plates 5.1 may be both provided with a second rotating shaft 5.3. Two second rotating shafts 5.3 are rotatably connected to the second connecting seat 13 to realize the rotatable connection of the crank 5 and the second connecting seat 13.
[0052] With reference to FIG. 1 and FIG. 6, in some embodiments of the disclosure, the first end of the pull rod 6 may be located between the two clamping plates 5.1. The first end of the pull rod 6 may be rotatably connected with a middle portion of the two clamping plates 5.1 by means of a third rotating shaft 14, so as to realize the a rotatable connection of the first end of the pull rod 6 and the crank 5.
[0053] In some embodiments of the disclosure, parts between the first end and the second end of the two clamping plates 5.1 may be both provided with a notch. The notch enables the pull rod to be mounted in the crank 5 in an embedded form.
[0054] In some embodiments of the disclosure, a length of the pull rod 6 is adjustable. Through the length-adjustable pull rod 6, an opening degree of the bottom door 4 can be adjusted to facilitate the maintenance of the opening and closing mechanism.
[0055] FIG. 7 is a structural schematic view of the pull rod in FIG. 1. With reference to FIG. 7, in some embodiments of the disclosure, the pull rod 6 may include a first rod body 6.1 and a second rod body 6.2, each of which having a first end and a second end. The first end of the first rod body 6.1 is rotatably connected to a middle portion of a rocking handle 5. The second end of the first rod body 6.1 may be threadedly connected in 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. Through a threaded connection of the first rod body 6.1 and the second rod body 6.2, the length of the pull rod 6 may be adjusted conveniently.
[0056] With reference to FIG. 7, in some embodiments of the disclosure, the first end of the first rod body 6.1 may be provided with a first connecting ring 6.3, the first connecting ring 6.3 may be rotatably connected to the two clamping plates 5.1 by means of a third rotating shaft. The second end of the second rod body 6.2 may be provided with a second connecting ring 6.4, the second connecting ring 6.4 is rotatably connected to the bottom of the bottom door 4 by means of a fourth rotating shaft 7.
Date Recue/Date Received 202 1-1 1-17 [0057] FIG. 8 is a structural schematic view of the bottom door in FIG. 1. As shown in FIG. 8, in some embodiments of the disclosure, the bottom door 4 may include a door plate 4.1, a hinge 4.2, a pull rod support 4.3 and a connecting beam 4.4. In some embodiments, two the door plates 4.1 may be arranged opposite to each other and may be connected in to a whole by means of the connecting beam 4.4. An avoidance space may be arranged between the two door plates 4.1 so as to avoid the middle beam. The two door plates 4.1 may be respectively provided with a plurality of hinges 4.2, so as to be rotatably connected to the car body 8. The pull rod support 4.3 may be fixedly arranged on the connecting beam 4.4 between the two door plates 4.1 so as to be connected to the pull rod 6.
[0058] In some embodiments of the disclosure, to prevent the opening and closing mechanism from being self-opening and occurrence of cargo self-unloading, a locking device can be generally provided to prevent the driving shaft 9 of the opening and closing mechanism from rotating, so as to improve the reliability of the opening and closing mechanism in a closed state.
[0059] FIG. 9 is a structural schematic view of the hopper car with the locking device. FIG. 10 is a schematic view of a cooperation of the locking device and the opening and closing mechanism in FIG. 9. FIG. 11 is a structural schematic view of the locking device in FIG.
9. With reference to FIG.
9 to FIG. 11, in some embodiments of the disclosure, the locking device may include a driving shaft 9, a driving handle 15, a driving member 16, a driving fork 17 and a locking block 18. in some embodiments, the driving shaft 9 can be disposed to be rotatable, and a rotation of the driving shaft 9 may drive the opening and closing mechanism to operate so as to open and close the bottom door.
[0060] With reference to FIG. 9 to FIG. 11, in some embodiments of the disclosure, the driving handle 15 may have a first end and a second end. The first end of the driving handle 15 may be fixedly sleeved on the driving shaft 9, and the second end of the driving handle 15 may be arranged away from the driving shaft 9. By controlling a rotation of the driving handle 15, the driving shaft 9 may be driven to rotate, and thereby further controlling the operation of the opening and closing mechanism.
[0061] With reference to FIG. 9 to FIG. 11, in some embodiments of the disclosure, an output end of the driving member 16 may move along a straight line, a the direction of a straight line movement may be perpendicular to a central axis of the driving shaft 9. The driving fork 17 may be fixedly arranged on the output end of the driving member 16. A waist-shaped hole 24 may be formed in the driving fork 17. A length direction of the waist-shaped hole 24 may be the direction of the straight line movement. The second end of the driving handle 15 is disposed to be rotatable in the waist-shaped hole 24. A first guide plate 19 may be provided on a side of a peripheral face of the driving
-11 -Date Recue/Date Received 202 1-1 1-17 fork 17 facing away from the driving shaft 9, and the first guide plate 19 may have a first side and a second side. The first side may be a side of the first guide plate 19 facing away from a fixed end of the driving member 16, and the second side may be a side of the first guide plate 19 facing the fixed end of the driving member 16.
100621 With reference to FIG. 9 to FIG. 11, in some embodiments of the disclosure, the locking block 18 may be arranged on a side of the driving fork 17 facing away from the driving shaft 9. An end of the locking block 18 may be disposed to be rotatable, and a protrusion 20 and a stop 21 may be sequentially provided on a side of the peripheral face of the locking block 18 facing the driving fork 17. The protrusion 20 and the stop 21 may be sequentially arranged away from the first guide plate 19. An other end of the driving handle 15 may be operatively located between the protrusion 20 and the stop 21. An end of the protrusion 20 facing the first guide plate 19 may be connected to the locking block 18 by means of a second guide plate 22. The second side of the first guide plate 19 and the second guide plate 22 are operatively arranged in a sliding manner. At least one of the second side of the first guide plate 19 and the second guide plate 22 may be a slope.
An other end of the locking block 18 may be provided with a third guide plate 23, and the first side of the first guide plate 19 and the third guide plate 23 are operatively arranged in a sliding manner. At least one of the first side of the first guide plate 19 and the third guide plate 23 may be a slope.
100631 In some embodiments of the disclosure, the locking device may be used to control the operation of the opening and closing mechanism. The working principles are as below:
100641 When the bottom door 4 and the opening and closing mechanism are in a closed state, the output end of the driving member 16 is not started; the second end of the driving handle 15 may be located between the stop 21 and the protrusion 20 of the locking block 18. By means of the stop 21, a rotation of the driving handle 15 may be limited, so that an objective of controlling the operation of the opening and closing mechanism may be achieved, and further the reliability of the opening and closing mechanism in a closed state may be improved.
100651 When the bottom door 4 needs to be opened, the locking device needs to be controlled to be unlocked. Under such working conditions, the output end of the driving member 16 may extend out.
Since the waist-shaped hole 24 is provided on the driving fork 17, the length direction of the waist-shaped hole 24 may be an extension direction of the output end of the driving member 16. The second end of the driving member 16 is disposed to be rotatable in the waist-shaped hole 24, so that the output end of the driving member 16 drives the driving fork 17 to move for an idle stroke.
During the idle stroke, the second side of the first guide plate 19 on the peripheral face of the driving
100621 With reference to FIG. 9 to FIG. 11, in some embodiments of the disclosure, the locking block 18 may be arranged on a side of the driving fork 17 facing away from the driving shaft 9. An end of the locking block 18 may be disposed to be rotatable, and a protrusion 20 and a stop 21 may be sequentially provided on a side of the peripheral face of the locking block 18 facing the driving fork 17. The protrusion 20 and the stop 21 may be sequentially arranged away from the first guide plate 19. An other end of the driving handle 15 may be operatively located between the protrusion 20 and the stop 21. An end of the protrusion 20 facing the first guide plate 19 may be connected to the locking block 18 by means of a second guide plate 22. The second side of the first guide plate 19 and the second guide plate 22 are operatively arranged in a sliding manner. At least one of the second side of the first guide plate 19 and the second guide plate 22 may be a slope.
An other end of the locking block 18 may be provided with a third guide plate 23, and the first side of the first guide plate 19 and the third guide plate 23 are operatively arranged in a sliding manner. At least one of the first side of the first guide plate 19 and the third guide plate 23 may be a slope.
100631 In some embodiments of the disclosure, the locking device may be used to control the operation of the opening and closing mechanism. The working principles are as below:
100641 When the bottom door 4 and the opening and closing mechanism are in a closed state, the output end of the driving member 16 is not started; the second end of the driving handle 15 may be located between the stop 21 and the protrusion 20 of the locking block 18. By means of the stop 21, a rotation of the driving handle 15 may be limited, so that an objective of controlling the operation of the opening and closing mechanism may be achieved, and further the reliability of the opening and closing mechanism in a closed state may be improved.
100651 When the bottom door 4 needs to be opened, the locking device needs to be controlled to be unlocked. Under such working conditions, the output end of the driving member 16 may extend out.
Since the waist-shaped hole 24 is provided on the driving fork 17, the length direction of the waist-shaped hole 24 may be an extension direction of the output end of the driving member 16. The second end of the driving member 16 is disposed to be rotatable in the waist-shaped hole 24, so that the output end of the driving member 16 drives the driving fork 17 to move for an idle stroke.
During the idle stroke, the second side of the first guide plate 19 on the peripheral face of the driving
-12-Date Recue/Date Received 202 1-1 1-17 fork 17 is in sliding fit with the second guide plate 22 on the locking block 18, pushing the locking block 18 to rotate around an end of the locking block 18. Thus, the limitation of the stop 21 of the locking block 18 on the driving handle 15 is eliminated, and enabling the opening and closing mechanism to operate nonnally.
[0066] When the bottom door 4 needs to be switched from the open state to the closed state, the output end of the driving member 16 is retracted, and the bottom door 4 returns along a path opposite to an opening. The first side of the first guide plate 19 of the driving fork 17 is in sliding fit with the third guide plate 23 on the locking block 18, and the locking block 18 may rotate reversely around an end of the locking block 18 under an action of gravity, so that the driving fork 17 may be retracted along a same path. When the bottom door 4 is in the closed state, under the action of gravity, the stop 21 of the peripheral face of the locking block 18 locks the second end of the driving handle 15, thereby obstructing the driving handle 15 to improve the reliability of the opening and closing mechanism in the closed state.
[0067] With reference to FIG. 11, in some embodiments of the disclosure, the second guide plate 22 and the third guide plate 23 may both be slopes, and extension lines of ends of the second guide plate 22 and the third guide plate 23 facing the protrusion can be arranged to intersect with each other.
The first side of the first guide plate 19 may be a slope, and the second side of the first guide plate 19 may be a vertical face.
[0068] With reference to FIG. 11, in some embodiments of the disclosure, the second side of the first guide plate 19 and an end of the first guide plate 19 away from the driving fork 16 are transitioned through a chamfer. In this way, the sliding between the second side of the first guide plate 19 and the second guide plate 22 may be more linear and smooth.
[0069] In some embodiments of the disclosure, the second guide plate 22 and the third guide plate 23 may both be vertical faces, and the first side and the second side of the first guide plate 19 may both be both slopes, or the second guide plate 22, the third guide plate 23 and the first side and the second side of the first guide plate 19 are all slopes, and the disclosure is not limited thereto.
[0070] With reference to FIG. 9 to FIG. 11, in some embodiments of the disclosure, the locking device may further include a compression spring 25. An end of the compression spring 25 may be fixedly arranged, and an other end of the compression spring 25 may be rotatably connected to an other end of the locking block 18. Thus, controlling a rotation of the locking block 18 needs to overcome a preload pressure of the compression spring 25, so as to further improve the reliability of the bottom door in the closed state.
[0066] When the bottom door 4 needs to be switched from the open state to the closed state, the output end of the driving member 16 is retracted, and the bottom door 4 returns along a path opposite to an opening. The first side of the first guide plate 19 of the driving fork 17 is in sliding fit with the third guide plate 23 on the locking block 18, and the locking block 18 may rotate reversely around an end of the locking block 18 under an action of gravity, so that the driving fork 17 may be retracted along a same path. When the bottom door 4 is in the closed state, under the action of gravity, the stop 21 of the peripheral face of the locking block 18 locks the second end of the driving handle 15, thereby obstructing the driving handle 15 to improve the reliability of the opening and closing mechanism in the closed state.
[0067] With reference to FIG. 11, in some embodiments of the disclosure, the second guide plate 22 and the third guide plate 23 may both be slopes, and extension lines of ends of the second guide plate 22 and the third guide plate 23 facing the protrusion can be arranged to intersect with each other.
The first side of the first guide plate 19 may be a slope, and the second side of the first guide plate 19 may be a vertical face.
[0068] With reference to FIG. 11, in some embodiments of the disclosure, the second side of the first guide plate 19 and an end of the first guide plate 19 away from the driving fork 16 are transitioned through a chamfer. In this way, the sliding between the second side of the first guide plate 19 and the second guide plate 22 may be more linear and smooth.
[0069] In some embodiments of the disclosure, the second guide plate 22 and the third guide plate 23 may both be vertical faces, and the first side and the second side of the first guide plate 19 may both be both slopes, or the second guide plate 22, the third guide plate 23 and the first side and the second side of the first guide plate 19 are all slopes, and the disclosure is not limited thereto.
[0070] With reference to FIG. 9 to FIG. 11, in some embodiments of the disclosure, the locking device may further include a compression spring 25. An end of the compression spring 25 may be fixedly arranged, and an other end of the compression spring 25 may be rotatably connected to an other end of the locking block 18. Thus, controlling a rotation of the locking block 18 needs to overcome a preload pressure of the compression spring 25, so as to further improve the reliability of the bottom door in the closed state.
-13-Date Recue/Date Received 202 1-1 1-17 [0071] As shown in FIG. 11, in some embodiments of the disclosure, the locking device may further include a connecting plate 26. The connecting plate 26 may include two side plates connected in an L shape. An side plate of the connecting plate 26 may be fixedly connected to the output end of the driving member 16, and the other side plate of the connecting plate 26 and the output end of the driving member 16 may be arranged in parallel. An end of the compression spring 25 may be fixedly connected to the other side plate of the connecting plate 26. The two side plates may be connected to the connecting block 27 by means of bolts. An end of the locking block 18 may be connected to the connecting block 27 by means of a pin shaft, so as to realize a rotatable arrangement of the locking block 18.
[0072] In some embodiments of the disclosure, an end of the compression spring 25 and an end of the locking block 18 may also be connected to the car body, and the disclosure is not limited thereto.
[0073] FIG. 12 is schematic view of an installation of the driving member in FIG. 9. As shown in FIG. 12, in some embodiments of the disclosure, the driving member 16 may include an air cylinder 16.1, a driving support 16.2, a driving plate seat 16.3 and an adjusting nut 16.4. In some embodiments, the driving support 16.2 may be fixedly arranged at the bottom of the car body, and the driving plate seat 16.3 may be connected to the driving support 16.2 by means of the adjusting nut 16.4. A fixed end of the air cylinder 16.1 may be fixedly connected to the driving support 16.3, and an output end of the air cylinder 16.1 may be the output end of the driving member 16.
[0074] In some embodiments of the disclosure, since the driving plate seat 16.3 may be connected to the driving support 16.2 by means of the adjusting nut 16.4, when installing the air cylinder 16.1, a position of the fixed end of the air cylinder may be adjusted by means of the adjusting nut 16.4 In some embodiments of the disclosure, since an air cylinder may be selected as a driving member, it may have corresponding rapid characteristics. In some embodiments of the disclosure, the air cylinder 16.1 may also be replaced with an oil cylinder or a motor, and the disclosure is not limited thereto.
100751 The locking device provided by the disclosure is simple and reliable in structure, and low in assembling precision requirements. The manufacturing difficulty and manufacturing cost can be reduced on the premise of ensuring the reliability of the opening and closing mechanism in the closed state.
[0076] The embodiments described above are preferred embodiments of the disclosure, which are used merely to facilitate the description of the disclosure, rather than limiting the disclosure in any way. Any equivalent embodiments obtained by those of ordinary skill in the art by modifying or
[0072] In some embodiments of the disclosure, an end of the compression spring 25 and an end of the locking block 18 may also be connected to the car body, and the disclosure is not limited thereto.
[0073] FIG. 12 is schematic view of an installation of the driving member in FIG. 9. As shown in FIG. 12, in some embodiments of the disclosure, the driving member 16 may include an air cylinder 16.1, a driving support 16.2, a driving plate seat 16.3 and an adjusting nut 16.4. In some embodiments, the driving support 16.2 may be fixedly arranged at the bottom of the car body, and the driving plate seat 16.3 may be connected to the driving support 16.2 by means of the adjusting nut 16.4. A fixed end of the air cylinder 16.1 may be fixedly connected to the driving support 16.3, and an output end of the air cylinder 16.1 may be the output end of the driving member 16.
[0074] In some embodiments of the disclosure, since the driving plate seat 16.3 may be connected to the driving support 16.2 by means of the adjusting nut 16.4, when installing the air cylinder 16.1, a position of the fixed end of the air cylinder may be adjusted by means of the adjusting nut 16.4 In some embodiments of the disclosure, since an air cylinder may be selected as a driving member, it may have corresponding rapid characteristics. In some embodiments of the disclosure, the air cylinder 16.1 may also be replaced with an oil cylinder or a motor, and the disclosure is not limited thereto.
100751 The locking device provided by the disclosure is simple and reliable in structure, and low in assembling precision requirements. The manufacturing difficulty and manufacturing cost can be reduced on the premise of ensuring the reliability of the opening and closing mechanism in the closed state.
[0076] The embodiments described above are preferred embodiments of the disclosure, which are used merely to facilitate the description of the disclosure, rather than limiting the disclosure in any way. Any equivalent embodiments obtained by those of ordinary skill in the art by modifying or
-14-Date Recue/Date Received 202 1-1 1-17 varying the embodiments partially based on the content disclosed in the disclosure without departing from the technical features of the disclosure are still within the scope of the disclosure.
-15-Date Recue/Date Received 202 1-1 1-17
Claims (10)
1. A locking device, comprising:
a driving shaft, being disposed to be rotatable, and a rotation of the driving shaft driving an opening and closing mechanism to operate so as to open and close a bottom door;
a driving handle, having a first end and a second end; the first end of the driving handle being fixedly sleeved on the driving shaft, and the second end of the driving handle being arranged away from the driving shaft;
a driving member, an output end of the driving member being movable along a straight line, and a direction of a straight line movement being perpendicular to a central axis of the driving shaft;
a driving fork, being fixedly arranged on the output end of the driving member, and a waist-shaped hole being formed in the driving fork; a length direction of the waist-shaped hole being the direction of the straight line movement, and the second end of the driving handle being disposed to be rotatable in the waist-shaped hole; a first guide plate being provided on a side of a peripheral face of the driving fork facing away from the driving shaft, and the first guide plate having a first side and a second side; the first side being a side of the first guide plate facing away from a fixed end of the driving member, and the second side being a side of the first guide plate facing the fixed end of the driving member; and a locking block, being arranged on a side of the driving fork facing away from the driving shaft, and an end of the locking block being disposed to be rotatable; a protrusion and a stop being sequentially provided on a side of a peripheral face of the locking block facing the driving fork, and the protrusion and the stop being sequentially arranged away from the first guide plate; the second end of the driving handle being operatively located between the protrusion and the stop, and an end of the protrusion facing the first guide plate being connected to the locking block by means of a second guide plate; the second side of the first guide plate and the second guide plate being operatively arranged in a sliding manner, and at least one of the second side of the first guide plate and the second guide plate being a slope; another end of the locking block being provided with a third guide plate; the first side of the first guide plate and the third guide plate being operatively arranged in a sliding manner, and at least one of the first side of the first guide plate and the third guide plate being a slope.
a driving shaft, being disposed to be rotatable, and a rotation of the driving shaft driving an opening and closing mechanism to operate so as to open and close a bottom door;
a driving handle, having a first end and a second end; the first end of the driving handle being fixedly sleeved on the driving shaft, and the second end of the driving handle being arranged away from the driving shaft;
a driving member, an output end of the driving member being movable along a straight line, and a direction of a straight line movement being perpendicular to a central axis of the driving shaft;
a driving fork, being fixedly arranged on the output end of the driving member, and a waist-shaped hole being formed in the driving fork; a length direction of the waist-shaped hole being the direction of the straight line movement, and the second end of the driving handle being disposed to be rotatable in the waist-shaped hole; a first guide plate being provided on a side of a peripheral face of the driving fork facing away from the driving shaft, and the first guide plate having a first side and a second side; the first side being a side of the first guide plate facing away from a fixed end of the driving member, and the second side being a side of the first guide plate facing the fixed end of the driving member; and a locking block, being arranged on a side of the driving fork facing away from the driving shaft, and an end of the locking block being disposed to be rotatable; a protrusion and a stop being sequentially provided on a side of a peripheral face of the locking block facing the driving fork, and the protrusion and the stop being sequentially arranged away from the first guide plate; the second end of the driving handle being operatively located between the protrusion and the stop, and an end of the protrusion facing the first guide plate being connected to the locking block by means of a second guide plate; the second side of the first guide plate and the second guide plate being operatively arranged in a sliding manner, and at least one of the second side of the first guide plate and the second guide plate being a slope; another end of the locking block being provided with a third guide plate; the first side of the first guide plate and the third guide plate being operatively arranged in a sliding manner, and at least one of the first side of the first guide plate and the third guide plate being a slope.
2. The locking device as claimed in claim 1, wherein both the second guide plate and the third guide plate are slopes.
Date recue/Date received 2023-03-10
Date recue/Date received 2023-03-10
3. The locking device as claimed in claim 2, wherein the first side of the first guide plate is a slope, and the second side of the first guide plate is a vertical face.
4. The locking device as claimed in claim 3, wherein the second side of the first guide plate and an end of the first guide plate away from the driving fork are transitioned through a chamfer.
5. The locking device as claimed in claim 1, wherein the locking device further includes a compression spring; and an end of the compression spring is disposed to be rotatable, and another end of the compression spring is rotatably connected to another end of the locking block.
6. The locking device as claimed in claim 1, wherein the driving member includes an air cylinder, a driving support, a driving plate seat and an adjusting nut;
the driving plate seat is connected to the driving support by means of the adjusting nut; and a fixed end of the air cylinder is fixedly connected to the driving support, and an output end of the air cylinder is the output end of the driving member.
the driving plate seat is connected to the driving support by means of the adjusting nut; and a fixed end of the air cylinder is fixedly connected to the driving support, and an output end of the air cylinder is the output end of the driving member.
7. A hopper car, comprising: a bottom door, an opening and closing mechanism controlling the bottom door to open, and a locking device as claimed in claim 1; and the operation of the opening and closing mechanism being controllable by means of the locking device.
8. The hopper car as claimed in claim 7, wherein the opening and closing mechanism includes:
a first connecting rod, a second connecting rod, a crank and a pull rod, each of which has a first end and a second end;
the first end of the first connecting rod is rotatably connected to the driving shaft, and 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, and the second end of the crank is rotatably connected to a bottom of a car body;
a middle portion of the crank is rotatably connected to the first end of the pull rod, and the second end of the crank and the first end of the first connecting rod are oppositely arranged;
Date recue/Date received 2023-03-10 the first end of the crank and the second end of the crank are both located at a same side of the middle portion of the crank, and the second end of the pull rod is rotatably connected to a bottom of a bottom door;
a top of the bottom door is rotatably connected to the car body, and a joint of the second end of the pull rod and the bottom of the bottom door and a joint of the top of the bottom door and the car body are both located between the first end of the first connecting rod and the second end of the crank;
the joint of the second end of the pull rod and the bottom of the bottom door is located below the second end of the crank; and the opening and closing mechanism further includes a stop block; the stop block is fixedly arranged on the car body, and the stop block is located on a lower side of the crank when the crank is located at a dead center position.
a first connecting rod, a second connecting rod, a crank and a pull rod, each of which has a first end and a second end;
the first end of the first connecting rod is rotatably connected to the driving shaft, and 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, and the second end of the crank is rotatably connected to a bottom of a car body;
a middle portion of the crank is rotatably connected to the first end of the pull rod, and the second end of the crank and the first end of the first connecting rod are oppositely arranged;
Date recue/Date received 2023-03-10 the first end of the crank and the second end of the crank are both located at a same side of the middle portion of the crank, and the second end of the pull rod is rotatably connected to a bottom of a bottom door;
a top of the bottom door is rotatably connected to the car body, and a joint of the second end of the pull rod and the bottom of the bottom door and a joint of the top of the bottom door and the car body are both located between the first end of the first connecting rod and the second end of the crank;
the joint of the second end of the pull rod and the bottom of the bottom door is located below the second end of the crank; and the opening and closing mechanism further includes a stop block; the stop block is fixedly arranged on the car body, and the stop block is located on a lower side of the crank when the crank is located at a dead center position.
9. The hopper car as claimed in claim 8, wherein the crank includes two opposite clamping plates;
first ends of two opposite sides of the two opposite clamping plates are both provided with a first rotating shaft, and two first rotating shafts are rotatably connected to two second ends of the second connecting rods respectively;
second ends of the two opposite sides of the two opposite clamping plates are both arranged with a second rotating shaft, and two second rotating shafts are rotatably connected to the second connecting seat; and the first end of the pull rod is located between the two clamping plates, and the first end of the pull rod is rotatably connected to a middle portion of the two clamping plates by means of a third rotating shaft.
first ends of two opposite sides of the two opposite clamping plates are both provided with a first rotating shaft, and two first rotating shafts are rotatably connected to two second ends of the second connecting rods respectively;
second ends of the two opposite sides of the two opposite clamping plates are both arranged with a second rotating shaft, and two second rotating shafts are rotatably connected to the second connecting seat; and the first end of the pull rod is located between the two clamping plates, and the first end of the pull rod is rotatably connected to a middle portion of the two clamping plates by means of a third rotating shaft.
10. The hopper car as claimed in claim 8, wherein the pull rod includes a first rod body and a second rod body, each of which has a first end and a second end;
the first end of the first rod body is rotatably connected to the middle portion of the crank; and the second end of the first rod body is threadedly connected in the first end of the second rod body, and the second end of the second rod body is rotatably connected to the bottom of the bottom door.
Date recue/Date received 2023-03-10
the first end of the first rod body is rotatably connected to the middle portion of the crank; and the second end of the first rod body is threadedly connected in the first end of the second rod body, and the second end of the second rod body is rotatably connected to the bottom of the bottom door.
Date recue/Date received 2023-03-10
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911357557.X | 2019-12-25 | ||
| CN201911357557.XA CN111038535B (en) | 2019-12-25 | 2019-12-25 | Locking device and hopper car |
| PCT/CN2020/105845 WO2021128848A1 (en) | 2019-12-25 | 2020-07-30 | Locking device and hopper car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA3140932A1 CA3140932A1 (en) | 2021-07-01 |
| CA3140932C true CA3140932C (en) | 2023-09-12 |
Family
ID=70239779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3140932A Active CA3140932C (en) | 2019-12-25 | 2020-07-30 | Locking device and hopper car |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN111038535B (en) |
| CA (1) | CA3140932C (en) |
| MX (1) | MX2022006943A (en) |
| WO (1) | WO2021128848A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111038535B (en) * | 2019-12-25 | 2021-04-13 | 中车长江车辆有限公司 | Locking device and hopper car |
| CN113501014B (en) * | 2021-07-30 | 2023-11-21 | 中车长江车辆有限公司 | Side-by-side combination of door opening and closing mechanism and bottom door opening and closing assembly and railway hopper car |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3042255C2 (en) * | 1980-11-08 | 1986-06-12 | Linke-Hofmann-Busch Waggon-Fahrzeug-Maschinen Gmbh, 3320 Salzgitter | Gearbox for opening and closing the unloading flaps of a saddle floor self-unloading vehicle |
| US4829908A (en) * | 1987-06-03 | 1989-05-16 | Thrall Car Manufacturing Co. | Hopper car automatic discharge door mechanism with operating lever adjustable support |
| CN200981556Y (en) * | 2006-12-27 | 2007-11-28 | 中国南车集团眉山车辆厂 | Transmission and opening-closing device for bottom door hopper wagon |
| CA2691259C (en) * | 2009-01-27 | 2018-03-13 | National Steel Car Limited | Railroad car and door mechanism therefor |
| CN201694193U (en) * | 2010-08-20 | 2011-01-05 | 南车长江车辆有限公司 | Bottom door and switching mechanism for railway hopper car |
| CN203558067U (en) * | 2013-10-29 | 2014-04-23 | 南车石家庄车辆有限公司 | Limiting device for controlling opening angle of bottom door of railroad hopper car |
| CN103538592B (en) * | 2013-10-29 | 2017-01-11 | 中车石家庄车辆有限公司 | Limiting device for controlling railway hopper car bottom door opening angle |
| CN203651766U (en) * | 2013-11-15 | 2014-06-18 | 南车长江车辆有限公司 | Secondary locking device for bottom door of hopper car and hopper car |
| CN104085403B (en) * | 2014-07-24 | 2016-08-31 | 中国铁路总公司 | A kind of railway freight-car bottom door mechanism and locking device thereof |
| CN104527672B (en) * | 2014-12-29 | 2017-06-30 | 江苏瑞铁轨道装备股份有限公司 | A kind of hopper wagon bottom door locking device |
| CN104648414B (en) * | 2015-02-04 | 2017-03-29 | 中车眉山车辆有限公司 | A kind of bottom door of railway hopper car locking system |
| CN104875756B (en) * | 2015-06-11 | 2017-10-31 | 中车长江车辆有限公司 | A kind of coordinated type bottom door opening and closing mechanism and hopper wagon |
| CN209320941U (en) * | 2018-11-20 | 2019-08-30 | 中车太原机车车辆有限公司 | Hopper wagon bottom door switching mechanism |
| CN110466546B (en) * | 2019-07-29 | 2024-07-02 | 中车太原机车车辆有限公司 | Limiting device for hopper car bottom door opening and closing mechanism |
| CN111038535B (en) * | 2019-12-25 | 2021-04-13 | 中车长江车辆有限公司 | Locking device and hopper car |
-
2019
- 2019-12-25 CN CN201911357557.XA patent/CN111038535B/en active Active
-
2020
- 2020-07-30 WO PCT/CN2020/105845 patent/WO2021128848A1/en active Application Filing
- 2020-07-30 CA CA3140932A patent/CA3140932C/en active Active
- 2020-07-30 MX MX2022006943A patent/MX2022006943A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| MX2022006943A (en) | 2022-07-11 |
| WO2021128848A1 (en) | 2021-07-01 |
| CN111038535B (en) | 2021-04-13 |
| CA3140932A1 (en) | 2021-07-01 |
| CN111038535A (en) | 2020-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA3140932C (en) | Locking device and hopper car | |
| AU2013202074B2 (en) | Bottom door opening-closing mechanism, bottom door device and drop-bottom hopper car | |
| AU2014202634B2 (en) | A device for opening and closing a pivoting wing | |
| CA3140930C (en) | Bottom door opening and closing mechanism and hopper car | |
| EP4317644A1 (en) | Multi-point locking mechanism for door system | |
| CN216424395U (en) | Vehicle door opening and closing device and vehicle | |
| CN102167092A (en) | Container rear door opening and closing device | |
| FI121418B (en) | Operating mechanism for a cargo hatch in a cargo ship | |
| CN110965870B (en) | Non-dangerous cabin door bolt lifting mechanism | |
| CN211731365U (en) | Hopper car with bottom door limiting function | |
| CN111038536B (en) | Single-opening pressure bar type bottom door opening and closing mechanism and hopper car | |
| WO2023098068A1 (en) | Vehicle door opening and closing device, and vehicle | |
| US10227803B2 (en) | Locking device | |
| SE541368C2 (en) | Manipulator for an access member, access member comprising the manipulator, system and method | |
| KR102466977B1 (en) | Door opening and closing device of specially equipped vehicle door with buffer function | |
| CN103350703B (en) | Railway truck slides embedded car door | |
| CN216611578U (en) | Aircraft cabin door overcenter four-bar mechanism | |
| CN101480956B (en) | Van and bottom door device thereof | |
| CN110589260B (en) | Cover opening structure and container with same | |
| CN203113980U (en) | Buffer gate hinge | |
| CN111977123A (en) | Embedded door-opening type logistics turnover box and using method thereof | |
| CN103967367B (en) | A kind of buffered gate folding | |
| CN216406513U (en) | Vehicle door opening and closing device and vehicle | |
| CN104261315B (en) | A kind of two-pass position gates opens mechanism | |
| CN112459634B (en) | Double-cam locking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20211117 |
|
| EEER | Examination request |
Effective date: 20211117 |
|
| EEER | Examination request |
Effective date: 20211117 |
|
| EEER | Examination request |
Effective date: 20211117 |
|
| EEER | Examination request |
Effective date: 20211117 |
|
| EEER | Examination request |
Effective date: 20211117 |
|
| EEER | Examination request |
Effective date: 20211117 |
|
| EEER | Examination request |
Effective date: 20211117 |
|
| EEER | Examination request |
Effective date: 20211117 |