A railway wagon drop mechanism locking device and railway wagon

Abstract

The application discloses a railway wagon flat opening mechanism locking device and a railway wagon, and relates to the field of railway wagon flat opening mechanism locking devices.

Description

Technical Field

[0001] This invention belongs to the field of railway freight car technology, and more specifically, relates to a locking device for a railway freight car swing mechanism and a railway freight car. Background Technology

[0002] To facilitate loading and unloading, railway freight cars are equipped with structures such as movable top covers, side doors, or bottom doors. These movable top covers and side doors typically open by moving parallel to the track. To prevent accidental opening during vehicle operation, locking devices are installed to securely lock them after they are closed. The main types of locking devices include eccentric structures, safety pins, latches, and ratchet mechanisms. Each of these locking devices has its own drawbacks. For example, eccentric locking devices require passing through a dead point during opening, which is laborious, and the eccentricity is difficult to adjust, making them prone to failure. Safety pins, latches, and ratchet mechanisms all require manual operation with both hands, which is cumbersome. Solving these problems often requires adding mechanisms, making the overall locking device structure more complex, less manufacturable, and inconvenient to maintain. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a locking device for the parallel opening mechanism of railway freight cars, thereby solving the problem of inconvenience in using existing railway freight car locking mechanisms.

[0004] To achieve the above objectives, the present invention provides a locking device for a railway freight car swing mechanism, comprising:

[0005] The first plate and the second plate are slidably arranged relative to each other;

[0006] The locking pin is located on the second plate;

[0007] The locking hook has one end rotatably mounted on the first plate, and the other end engages with the locking pin;

[0008] A first limiting block and a first elastic mechanism are respectively disposed on the first plate. The first elastic mechanism is used to bring the locking hook closer to the first limiting block, and the first limiting block prevents the locking hook from moving away from the first elastic mechanism.

[0009] The locking hook includes:

[0010] The contact plate and the hook plate are coaxially rotatably connected to the first plate. The contact plate is connected to the first elastic mechanism, and the hook plate is detachably connected to the locking pin.

[0011] The second limiting block and the second elastic mechanism are provided at the rotating end of the contact plate and form an angle with the contact plate. The second elastic mechanism is used to move the hook plate away from the contact plate and closer to the second limiting block.

[0012] When the second limiting block contacts the first limiting block, the hook plate can be locked with the locking pin.

[0013] Optionally, the hook plate is provided with a hook portion and a guide portion in sequence at one end near the locking pin.

[0014] Optionally, the locking pin is cylindrical.

[0015] Optionally, the touch plate is set at a right angle to the second limiting block.

[0016] Optionally, the hook plate can be rotated clockwise to lock the locking pin.

[0017] Optionally, the first elastic mechanism includes:

[0018] A vertical plate is installed on the first plate;

[0019] The spring is connected at both ends to the vertical plate and the contact plate, respectively.

[0020] Optionally, the first plate is provided with a rotating shaft, on which a first ring, a second ring and a third ring are rotatably connected in sequence. The lower end of the contact plate is connected to the outer periphery of the first ring and the third ring, the hook plate is connected to the outer periphery of the second ring, and the two ends of the second limiting block are respectively connected to the outer periphery of the first ring and the third ring.

[0021] Optionally, the included angle is 90 degrees.

[0022] Optionally, the second elastic mechanism is a torsion spring, which is sleeved on the rotating shaft.

[0023] The present invention also provides a railway freight car, comprising:

[0024] The aforementioned locking device for the parallel opening mechanism of railway freight cars;

[0025] A swing door, wherein the first plate and the second plate are respectively disposed on the door panel and the door frame.

[0026] This invention provides a locking device for the parallel opening mechanism of railway freight cars, which has the following advantages:

[0027] The locking device of this railway freight car swing mechanism is simple and convenient to use. The locking hook and locking pin are installed at the ends of the moving parts of the swing mechanism through the first plate and the second plate, respectively. When locking, the locking hook moves together with the moving parts to the closed position. It opens upward by the resistance force given by the locking pin when the mechanism moves and then rests on the locking pin. When opening, the touch plate is moved to drive the locking hook to follow the movement and then move away from the locking pin. It can realize the opening and closing of the swing mechanism at the same time. During the locking and opening process, only one action of moving the touch plate is needed to complete the process.

[0028] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0029] The above and other objects, features and advantages of the present invention will become more apparent from the more detailed description of exemplary embodiments of the invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the invention.

[0030] Figure 1 An exploded view of a locking device for a railway freight car swing mechanism according to an embodiment of the present invention is shown.

[0031] Figure 2 A schematic diagram of the locking motion of a locking device for a railway freight car swing mechanism according to an embodiment of the present invention is shown.

[0032] Figure 3 A schematic diagram of the release movement of a locking device for a railway freight car swing mechanism according to an embodiment of the present invention is shown.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. First plate; 2. Second plate; 3. Locking pin; 4. First limiting block; 5. First elastic mechanism; 6. Contact plate; 7. Hook plate; 8. Guide part; 9. Second limiting block; 10. Second elastic mechanism. Detailed Implementation

[0035] Preferred embodiments of the invention will now be described in more detail. While preferred embodiments of the invention are described below, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0036] like Figure 1-3 As shown, a locking device for a railway freight car swing mechanism includes:

[0037] The first plate 1 and the second plate 2 are slidably arranged relative to each other;

[0038] Locking pin 3 is located on the second plate 2;

[0039] The locking hook has one end rotatably mounted on the first plate 1, and the other end engages with the locking pin 3;

[0040] The first limiting block 4 and the first elastic mechanism 5 are respectively disposed on the first plate 1. The first elastic mechanism 5 is used to bring the locking hook close to the first limiting block 4, and the first limiting block 4 prevents the locking hook from moving away from the first elastic mechanism 5.

[0041] The carabiner includes:

[0042] The contact plate 6 and the hook plate 7 are coaxially rotatably connected to the first plate 1. The contact plate 6 is connected to the first elastic mechanism 5, and the hook plate 7 is detachably connected to the locking pin 3.

[0043] The second limiting block 9 and the second elastic mechanism 10 are provided at the rotating end of the contact plate 6 and form an angle with the contact plate 6. The second elastic mechanism 10 is used to move the hook plate 7 away from the contact plate 6 and closer to the second limiting block 9.

[0044] When the second limiting block 9 comes into contact with the first limiting block 4, the hook plate 7 can be locked with the locking pin 3.

[0045] Specifically, the first elastic mechanism 5 drives the locking hook to lock the locking pin 3, and the first limiting block 4 restricts the range of motion of the locking hook. When unhooking, only the first elastic mechanism 5 needs to be compressed. At the same time, the second elastic mechanism 10 cooperates with the first elastic mechanism 5 to provide locking force. In the locked state, the combined elastic locking force of the first elastic mechanism 5 and the second elastic mechanism 10 can drive the touch plate 6 to unlock. It is only subject to the resistance of the first elastic mechanism 5, making unlocking easier.

[0046] In this embodiment, the hook plate 7 is provided with a hook and a guide 8 at one end near the locking pin 3.

[0047] Specifically, the locking pin 3 is guided by the guide part 8 to move into the hook part through the hook part in cooperation with the hook part.

[0048] In this embodiment, the locking pin 3 is columnar.

[0049] In this embodiment, the touch plate 6 and the second limiting block 9 are arranged at right angles.

[0050] In this embodiment, the hook plate 7 can rotate clockwise to lock the locking pin 3.

[0051] Specifically, the hook plate 7 locks the locking pin 3 from top to bottom, using its own weight to improve the locking effect.

[0052] In this embodiment, the first elastic mechanism 5 includes:

[0053] A vertical plate is installed on the first plate 1;

[0054] The spring is connected at both ends to the vertical plate and the contact plate 6, respectively.

[0055] In this embodiment, a rotating shaft is provided on the first plate 1, and a first ring, a second ring and a third ring are rotatably connected on the rotating shaft in sequence. The lower end of the contact plate 6 is connected to the outer periphery of the first ring and the third ring, the hook plate 7 is connected to the outer periphery of the second ring, and the two ends of the second limiting block 9 are respectively connected to the outer periphery of the first ring and the third ring.

[0056] In this embodiment, the included angle is 90 degrees.

[0057] In this embodiment, the second elastic mechanism 10 is a torsion spring, which is sleeved on the rotating shaft.

[0058] The present invention also provides a railway freight car, comprising:

[0059] The aforementioned locking device for the parallel opening mechanism of railway freight cars;

[0060] The hinged door has a first panel 1 and a second panel 2 installed on the door panel and door frame, respectively.

[0061] In this embodiment, when a railway freight car swing door is used, taking the use of a railway freight car swing door as an example, the first plate 1 is set on the door frame and the second plate 2 is set on the swing door. When locked, the swing door is close to the door frame, and the locking pin 3 drives the hook plate 7 to rotate upward through the guide part 8 and enters the hook part. When unlocked, the first elastic mechanism 5 is compressed by the drive contact plate 6, and at the same time, the locking hook is driven to rotate upward and separate from the locking pin 3.

[0062] The first plate 1 is set on the sliding door, and the second plate 2 is set on the door frame. When unlocking, the lock hook rotates upward and separates from the lock pin 3, but can still drive the touch plate 6 to continue moving as a handle to open the sliding door.

[0063] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A locking device for a railway freight car parallel opening mechanism, characterized in that, include: The first plate and the second plate are slidably arranged relative to each other; The locking pin is located on the second plate; The locking hook has one end rotatably mounted on the first plate, and the other end engages with the locking pin; A first limiting block and a first elastic mechanism are respectively disposed on the first plate. The first elastic mechanism is used to bring the locking hook closer to the first limiting block, and the first limiting block prevents the locking hook from moving away from the first elastic mechanism. The locking hook includes: The contact plate and the hook plate are coaxially rotatably connected to the first plate. The contact plate is connected to the first elastic mechanism, and the hook plate is detachably connected to the locking pin. The second limiting block and the second elastic mechanism are provided at the rotating end of the contact plate and form an angle with the contact plate. The second elastic mechanism is used to move the hook plate away from the contact plate and closer to the second limiting block. When the second limiting block contacts the first limiting block, the hook plate can be locked with the locking pin; The first plate is provided with a rotating shaft, on which a first ring, a second ring and a third ring are rotatably connected in sequence. The lower end of the contact plate is connected to the outer periphery of the first ring and the third ring, the hook plate is connected to the outer periphery of the second ring, and the two ends of the second limiting block are respectively connected to the outer periphery of the first ring and the third ring. The first elastic mechanism includes: A vertical plate is installed on the first plate; The spring is connected at both ends to the vertical plate and the contact plate, respectively.

2. The locking device for a railway freight car swing mechanism according to claim 1, characterized in that, The hook plate has a hook and a guide part arranged sequentially at one end near the locking pin.

3. The locking device for a railway freight car swing mechanism according to claim 1, characterized in that, The locking pin is cylindrical.

4. The locking device for a railway freight car swing mechanism according to claim 1, characterized in that, The touch plate is set at a right angle to the second limiting block.

5. A locking device for a railway freight car swing mechanism according to claim 1, characterized in that, The hook plate can be rotated clockwise to lock the locking pin.

6. A locking device for a railway freight car swing mechanism according to claim 1, characterized in that, The included angle is 90 degrees.

7. A locking device for a railway freight car swing mechanism according to claim 1, characterized in that, The second elastic mechanism is a torsion spring, which is sleeved on the rotating shaft.

8. A railway freight car, characterized in that, include: The locking device for the parallel opening mechanism of railway freight cars according to any one of claims 1-7; A swing door, with the first plate and the second plate respectively installed on the door panel and the door frame.

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