Railway flat car end wall structure and railway flat car

Abstract

The application provides a railway flat car end wall structure and a railway flat car, and relates to the technical field of railway flat cars, which comprises the following steps: detachably connecting the lower end of an end wall body with the end floor of a railway flat car; and arranging an upper locking mechanism and a lower locking mechanism on the outer side of the end wall body from top to bottom at intervals. The upper locking mechanism comprises a first rotating shaft rotatably connected with the end wall body, and the two ends of the first rotating shaft are respectively provided with an upper locking hook and a first operating handle. The middle part of the first rotating shaft is provided with a first crank. The lower locking mechanism comprises a second rotating shaft rotatably connected with the end wall body, and the two ends of the second rotating shaft are respectively provided with a lower locking hook and a second operating handle. The middle part of the second rotating shaft is provided with a second crank. A first connecting rod is connected between the first crank and the second crank. The application solves the problem of poor transport protection capability of the railway flat car in the prior art, and meets the transport requirements of goods that need to be protected from rain, sunlight and secrets.

Description

Technical Field

[0001] This invention belongs to the field of railway flatcar technology, and more specifically, relates to a railway flatcar end wall structure and a railway flatcar. Background Technology

[0002] Railway flatcars are one of the main types of rolling stock in railway transportation, primarily used for transporting steel, automobiles, tractors, containerized goods, large concrete bridges, and military equipment. With years of use, railway flatcars have become very diverse in terms of products and services, demonstrating strong adaptability. Their containerized cargo transport function has also greatly promoted the realization of the national goal of shifting bulk cargo from road to rail. However, when transporting steel coils, valuable equipment, and other goods requiring rain, sun, and confidentiality protection, the cargo itself needs to be individually protected, reducing loading and transportation efficiency and failing to meet current environmental protection requirements for transportation.

[0003] The development of multifunctional movable canopy railway flatcars is of great practical significance. The movable canopy on the railway flatcar is supported by multiple inverted U-shaped brackets and slides on the railway flatcar to protect the goods. However, the two ends of the movable canopy still need an end wall structure to seal them in order to improve the protective effect. Therefore, it is urgent to design an end wall structure suitable for railway flatcars with movable canopies. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a railway flatcar end wall structure and a railway flatcar, thereby solving the problem that existing railway flatcars have poor transport protection capabilities during transportation, making it difficult to meet the transportation needs of goods requiring rain protection, sun protection, and confidentiality.

[0005] To achieve the above objectives, the present invention provides a railway flatcar end wall structure, comprising:

[0006] The end wall body, the lower end of which is detachably connected to the end floor of the railway flatcar;

[0007] An upper locking mechanism and a lower locking mechanism are spaced apart from top to bottom on the outer side of the end wall body. The upper locking mechanism includes a first rotating shaft rotatably connected to the end wall body. Each end of the first rotating shaft is provided with an upper locking hook and a first operating handle. A first crank is provided in the middle of the first rotating shaft. The lower locking mechanism includes a second rotating shaft rotatably connected to the end wall body. Each end of the second rotating shaft is provided with a lower locking hook and a second operating handle. A second crank is provided in the middle of the second rotating shaft. A first connecting rod is connected between the first crank and the second crank.

[0008] The upper locking hook and the lower locking hook are respectively used to cooperate with the locking post of the movable canopy on the railway flatcar to lock the locking post onto the end wall body.

[0009] Optionally, an upper anti-accidental touch operating mechanism and a lower anti-accidental touch operating mechanism are respectively provided below the upper locking mechanism and below the lower locking mechanism. The upper anti-accidental touch operating mechanism includes a third rotating shaft rotatably connected to the end wall body. A third operating handle is provided at each end of the third rotating shaft, and a third crank is provided in the middle of the third rotating shaft. The lower anti-accidental touch operating mechanism includes a fourth rotating shaft rotatably connected to the end wall body. A fourth operating handle is provided at each end of the fourth rotating shaft, and a fourth crank is provided in the middle of the fourth rotating shaft. A second connecting rod is connected between the third crank and the fourth crank. A limit post is provided on the side of the second operating handle near the fourth operating handle, and a limit groove is provided on one side of the fourth operating handle. The limit groove can be embedded in the limit groove so that the second operating handle cannot drive the second rotating shaft to rotate.

[0010] Optionally, it also includes an elastic telescopic mechanism, the housing end of which is hinged to the end wall body. The hinge position of the housing end of the elastic telescopic mechanism to the end wall body is located above the second rotating shaft. A fifth crank is also provided in the middle of the second rotating shaft. The telescopic end of the elastic telescopic mechanism is hinged to the fifth crank. The elastic telescopic mechanism is in a pre-compressed state, and the telescopic end of the elastic telescopic mechanism can apply a downward thrust to the fifth crank.

[0011] Optionally, the upper locking hook includes a first connecting portion and a first hook body portion. One end of the first connecting portion is connected to the first rotating shaft, and the first hook body portion is connected to the other end of the first connecting portion. The end face of the first hook body portion near the first rotating shaft is a first curved surface. The lower locking hook includes a second connecting portion and a second hook body portion. One end of the second connecting portion is connected to the second rotating shaft, and the second hook body portion is connected to the other end of the second connecting portion. The end face of the second hook body portion near the second rotating shaft is a second curved surface. As the second hook body portion rotates in the locking direction, the contact position between the second curved surface and the locking pin moves towards the root of the second hook body portion, and the second hook body portion causes the locking pin to move towards the end wall body.

[0012] Optionally, the rotation angle of the first hook body from the unlocked position to the locked position and from the locked position to the unlocked position is the first angle, and the rotation angle of the second hook body from the unlocked position to the locked position and from the locked position to the unlocked position is the second angle, wherein the second angle is greater than the first angle.

[0013] Optionally, the length of the first crank is greater than the length of the second crank, the lower end of the first connecting rod is hinged to the second crank through a first circular hole, and the upper end of the first connecting rod is hinged to the first crank through a first elongated hole.

[0014] Optionally, the first operating handle includes a first lever portion and a first hand-held portion. One end of the first lever portion is connected to the first rotating shaft, and the first hand-held portion is connected to the other end of the first lever portion. When the upper locking mechanism is in the locked position, the first lever portion hangs vertically downwards, causing the first hand-held portion to be located at the lower end of the first lever portion. The second operating handle includes a second lever portion and a second hand-held portion. One end of the second lever portion is connected to the second rotating shaft, and the second hand-held portion is connected to the other end of the second lever portion. When the lower locking mechanism is in the locked position, the second lever portion hangs vertically downwards, causing the second hand-held portion to be located at the lower end of the second lever portion.

[0015] Optionally, when the upper locking mechanism and the lower locking mechanism are in the locked position, the height of the center of the locking pin that cooperates with the upper locking hook is lower than the height of the center of the first rotating shaft, the height of the center of the locking pin that cooperates with the lower locking hook is lower than the height of the center of the second rotating shaft, and the weight of the first operating handle is greater than the weight of the upper locking hook, and the weight of the second operating handle is greater than the weight of the lower locking hook.

[0016] Optionally, the third operating handle is a V-shaped operating rod, one end of which is connected to the third rotating shaft, and the other end of which is a first free end. The fourth operating handle is a V-shaped operating plate, one end of which is connected to the fourth rotating shaft, and the other end of which is a second free end. An arc-shaped limiting groove is provided on the lower side of the one end of the operating plate. When the limiting post is embedded in the bottom of the limiting groove, the height of the center of the limiting post is lower than the height of the center of the fourth rotating shaft.

[0017] The present invention also provides a railway flatcar, comprising:

[0018] The body of a railway flatcar;

[0019] The movable canopy is located on the upper side of the railway flatcar body. The movable canopy includes multiple inverted U-shaped supports. The lower end of the supports slides with the railway flatcar body. A tarpaulin is provided on the outer side of the supports. Four locking posts are respectively provided on the two outermost supports.

[0020] The two aforementioned railway flatcar end wall structures are detachably connected to the floor at both ends of the railway flatcar body.

[0021] This invention provides a railway flatcar end wall structure and a railway flatcar, the advantages of which are as follows: the end wall body of the railway flatcar end wall structure can be connected to the end floor of the railway flatcar, achieving a sealing function at the end of the railway flatcar; when a movable canopy is provided on the upper side of the railway flatcar, the upper locking mechanism and the lower locking mechanism on the end wall body can cooperate with the locking column of the movable canopy through the upper and lower locking hooks respectively, locking the locking column onto the end wall body, achieving close contact between the movable canopy and the end wall body, and using the end wall body to seal the open openings at both ends of the movable canopy, improving the protection effect; the upper locking mechanism and the lower locking mechanism have a first operating handle and a second operating handle of different heights, which can facilitate ground operation in freight yards without platforms as well as platform operation in freight yards with platforms; furthermore, the first crank on the first rotating shaft and the second crank on the second rotating shaft are connected by a first connecting rod to form a crank-connecting rod structure, so that whether the first operating handle or the second operating handle is operated, the upper locking mechanism and the lower locking mechanism can be operated simultaneously.

[0022] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0023] 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.

[0024] Figure 1 A three-dimensional structural schematic diagram of a railway flatcar end wall structure according to an embodiment of the present invention is shown.

[0025] Figure 2 A schematic diagram of the upper locking mechanism of a railway flatcar end wall structure according to an embodiment of the present invention is shown.

[0026] Figure 3 It shows Figure 2 Side view.

[0027] Figure 4 A schematic diagram of the lower locking mechanism of a railway flatcar end wall structure according to an embodiment of the present invention is shown.

[0028] Figure 5 It shows Figure 4 Side view.

[0029] Figure 6 A schematic diagram of the anti-accidental operation mechanism of the end wall structure of a railway flatcar according to an embodiment of the present invention is shown.

[0030] Figure 7 It shows Figure 6 Side view.

[0031] Figure 8 A schematic diagram of the anti-accidental operation mechanism of the end wall structure of a railway flatcar according to an embodiment of the present invention is shown.

[0032] Figure 9 It shows Figure 8 Side view.

[0033] Figure 10 A schematic diagram of a railway flatcar end wall structure according to an embodiment of the present invention is shown, in which both the upper and lower locking mechanisms are in the locked position and the upper and lower anti-misoperation operation mechanisms are in the anti-misoperation operation locked state.

[0034] Figure 11 A schematic diagram of a railway flatcar end wall structure according to an embodiment of the present invention is shown, in which both the upper and lower locking mechanisms are in the locked position and the upper and lower anti-misoperation operation mechanisms are in the anti-misoperation operation unlocked state.

[0035] Figure 12 A schematic diagram of a railway flatcar end wall structure according to an embodiment of the present invention is shown, in which the lower locking mechanism is in the unlocked position and the upper locking mechanism is in the locked position.

[0036] Figure 13 A schematic diagram of a railway flatcar end wall structure according to an embodiment of the present invention is shown, in which both the lower and upper locking mechanisms are in the unlocked position.

[0037] Figure 14 A schematic diagram of a railway flatcar end wall structure according to an embodiment of the present invention is shown, in which the lower locking mechanism is in the locking process while the upper locking mechanism is still in the unlocked position.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. End wall body; 2. Upper locking mechanism; 3. Lower locking mechanism; 4. First rotating shaft; 5. First operating handle; 6. First crank; 7. Second rotating shaft; 8. Second operating handle; 9. Second crank; 10. First connecting rod; 11. Upper anti-accidental contact operating mechanism; 12. Lower anti-accidental contact operating mechanism; 13. Third rotating shaft; 14. Third operating handle; 15. Third crank; 16. Fourth rotating shaft; 17. Fourth operating handle; 18. Fourth crank ; 19. Second connecting rod; 20. Limiting post; 21. Limiting groove; 22. Elastic telescopic mechanism; 23. Fifth crank; 24. First connecting part; 25. First hook body part; 26. First curved surface; 27. Second connecting part; 28. Second hook body part; 29. ​​Second curved surface; 30. First lever part; 31. First hand-held part; 32. Second lever part; 33. Second hand-held part; 34. Locking post; 35. Upper locking hook; 36. Lower locking hook. Detailed Implementation

[0040] 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.

[0041] like Figures 1 to 14 As shown, the present invention provides a railway flatcar end wall structure, comprising:

[0042] End wall body 1, the lower end of which is detachably connected to the end floor of the railway flatcar;

[0043] The upper locking mechanism 2 and the lower locking mechanism 3 are arranged at intervals from top to bottom on the outside of the end wall body 1. The upper locking mechanism 2 includes a first rotating shaft 4 rotatably connected to the end wall body 1. Each end of the first rotating shaft 4 is provided with an upper locking hook 35 and a first operating handle 5. A first crank 6 is provided in the middle of the first rotating shaft 4. The lower locking mechanism 3 includes a second rotating shaft 7 rotatably connected to the end wall body 1. Each end of the second rotating shaft 7 is provided with a lower locking hook 36 and a second operating handle 8. A second crank 9 is provided in the middle of the second rotating shaft 7. A first connecting rod 10 is connected between the first crank 6 and the second crank 9.

[0044] The upper locking hook 35 and the lower locking hook 36 are respectively used to cooperate with the locking post 34 of the movable roof on the railway flatcar to lock the locking post 34 onto the end wall body 1.

[0045] Specifically, to address the problem of poor transport protection capabilities in existing railway flatcar transportation processes, which makes it difficult to meet the transportation needs of goods requiring rain protection, sun protection, and confidentiality, the end wall body 1 of the railway flatcar end wall structure provided by this invention can be connected to the end floor of the railway flatcar, achieving a sealing function at the end of the railway flatcar. When a movable roof is provided on the upper side of the railway flatcar, the upper locking mechanism 2 and the lower locking mechanism 3 on the end wall body 1 can respectively cooperate with the locking pin 34 of the movable roof through the upper locking hook 35 and the lower locking hook 36, locking the locking pin 34 onto the end wall body 1, thereby realizing the connection between the movable roof and the end wall body 1. The two ends of the movable canopy are sealed by the end wall body 1 to improve the protection effect; the upper locking mechanism 2 and the lower locking mechanism 3 have a first operating handle 5 and a second operating handle 8 of different heights, which can facilitate ground operation in freight yards without platforms as well as platform operation in freight yards with platforms; and the first crank 6 on the first rotating shaft 4 and the second crank 9 on the second rotating shaft 7 are connected by a first connecting rod to form a crank connecting rod structure, so that whether the first operating handle 5 or the second operating handle 8 is operated, the upper locking mechanism 2 and the lower locking mechanism 3 can be operated at the same time.

[0046] In this embodiment, the end wall body 1 includes an angle steel frame, an end plate, a crossbeam, an end column, a base, and a diagonal brace. The outer periphery of the end plate is connected to the inner periphery of the angle steel frame. The crossbeam and the end column are set on the inner surface of the end plate near the railway flatcar. Each end of the crossbeam is connected to a side column connected to the base. The two end columns are set vertically. The base is set on one side of the lower end of the angle steel frame for bolt connection with the railway flatcar. The two ends of the diagonal brace are connected to the base and the side column, respectively. The outer surface of the end wall body 1 is provided with a first pivot 4 hinge support, a second pivot 7 hinge support, a third pivot 13 hinge support, and a fourth pivot 16 hinge support to realize the rotational connection between the first to fourth pivots 16 and the end wall body 1.

[0047] Optionally, an upper anti-accidental touch operation mechanism 11 and a lower anti-accidental touch operation mechanism 12 are respectively provided below the upper locking mechanism 2 and below the lower locking mechanism 3. The upper anti-accidental touch operation mechanism 11 includes a third rotating shaft 13 rotatably connected to the end wall body 1. A third operating handle 14 is provided at both ends of the third rotating shaft 13, and a third crank 15 is provided in the middle of the third rotating shaft 13. The lower anti-accidental touch operation mechanism 12 includes a fourth rotating shaft 16 rotatably connected to the end wall body 1. A fourth operating handle 17 is provided at both ends of the fourth rotating shaft 16, and a fourth crank 18 is provided in the middle of the fourth rotating shaft 16. A second connecting rod 19 is connected between the third crank 15 and the fourth crank 18. A limit post 20 is provided on the side of the second operating handle 8 near the fourth operating handle 17, and a limit groove 21 is provided on the side of the fourth operating handle 17. The limit groove 21 can be embedded in the limit groove 21 so that the second operating handle 8 cannot drive the second rotating shaft 7 to rotate.

[0048] Specifically, when the second operating handle 8 is rotated in the operating direction of the lower locking mechanism 3 towards the locked position, the limiting post 20 contacts the lower side of the fourth operating handle 17. The fourth operating handle 17 rotates naturally under gravity, causing its lower side to adhere to the moving limiting post 20 and move relative to it until the lower locking mechanism 3 reaches the locked position. The limiting post 20 on the second operating handle 8 then embeds into the limiting groove 21, which limits the limiting post 20, preventing the second operating handle 8 from rotating in the opposite direction when the fourth operating handle 17 is in the locked position. Before the limit post 20 is released, the second rotating shaft 7 cannot be driven to rotate in the opposite direction to unlock the lower locking hook 36. Through the setting of the second connecting rod 19, the fourth rotating shaft 16 can be linked with the third rotating shaft 13. The fourth rotating shaft 16 and the third rotating shaft 13 are respectively equipped with the fourth operating handle 17 and the third operating handle 14, and the two are at different heights. Regardless of which operating handle is operated, the protection of the upper anti-accidental contact operating mechanism 11 and the lower anti-accidental contact operating mechanism 12 can be released. This is convenient for ground operation in freight yards without platforms, as well as for platform operation in freight yards with platforms.

[0049] Optionally, it also includes an elastic telescopic mechanism 22, the housing end of the elastic telescopic mechanism 22 is hinged to the end wall body 1, the hinge position of the housing end of the elastic telescopic mechanism 22 and the end wall body 1 is located above the second rotating shaft 7, a fifth crank 23 is also provided in the middle of the second rotating shaft 7, the telescopic end of the elastic telescopic mechanism 22 is hinged to the fifth crank 23, the elastic telescopic mechanism 22 is in a pre-compressed state, and the telescopic end of the elastic telescopic mechanism 22 can apply a downward thrust to the fifth crank 23.

[0050] Specifically, the telescopic end of the elastic telescopic mechanism 22 is connected to the second rotating shaft 7 via the fifth crank 23. When the second rotating shaft 7 rotates to the locked position, the fifth crank 23 deflects towards the outside of the railway flatcar. At this time, due to the elastic force of the elastic telescopic mechanism 22, the fifth crank 23 is pressed downward, helping the lower locking mechanism 3 and the upper locking mechanism 2 to maintain the locked state. Furthermore, during the locking process of the lower locking mechanism 3 and the upper locking mechanism 2, once the fifth crank 23 passes the dead point where its axis is collinear with the axis of the elastic telescopic mechanism 22, the elastic force can help the operator push the second rotating shaft 7. Rotating to the locked position saves effort; similarly, when the second shaft 7 is rotated to the unlocked position, the fifth crank 23 deflects towards the inside of the railway flatcar. At this time, due to the elastic force of the elastic telescopic mechanism 22, the fifth crank 23 is pressed down, which helps the lower locking mechanism 3 and the upper locking mechanism 2 to remain unlocked. In the process of unlocking the lower locking mechanism 3 and the upper locking mechanism 2, once the fifth crank 23 passes the dead point where its axis is collinear with the axis of the elastic telescopic mechanism 22, the elastic force can help the operator push the second shaft 7 to the unlocked position, which saves effort.

[0051] Furthermore, the elastic telescopic mechanism 22 may include a cylindrical shell, a compression spring inside the cylindrical shell, and a telescopic rod movably passing through one end of the cylindrical shell. The elastic force generated by the pre-compression of the compression spring pushes the telescopic rod to move as the telescopic end.

[0052] In this embodiment, an installation beam is provided on the end wall body 1, and a fifth hinge support is provided on the installation beam. The housing end of the elastic telescopic mechanism 22 is hinged to the fifth hinge support.

[0053] Optionally, the upper locking hook 35 includes a first connecting portion 24 and a first hook body portion 25. One end of the first connecting portion 24 is connected to the first rotating shaft 4, and the first hook body portion 25 is connected to the other end of the first connecting portion 24. The end face of the first hook body portion 25 near the first rotating shaft 4 is a first curved surface 26. The lower locking hook 36 includes a second connecting portion 27 and a second hook body portion 28. One end of the second connecting portion 27 is connected to the second rotating shaft 7, and the second hook body portion 28 is connected to the other end of the second connecting portion 27. The end face of the second hook body portion 28 near the second rotating shaft 7 is a second curved surface 29. As the second hook body portion 28 rotates in the locking direction, the contact position between the second curved surface 29 and the locking pin 34 moves towards the root of the second hook body portion 28, and the second hook body portion 28 causes the locking pin 34 to move towards the end wall body 1.

[0054] Specifically, the first hook body 25 is connected to the first connecting part 24 to form a first hook shape, and the second hook body 28 is connected to the second connecting part 27 to form a second hook shape. The degree of curvature of the second hook shape at the position of the second hook body 28 is greater than the degree of curvature of the first hook shape at the position of the first hook body 25. This allows the second curved surface 29 to move towards the end wall body 1 by contacting and moving relative to the locking pin 34 when the second hook body 28 rotates in the locking direction, thereby creating an effect of gradually tightening the lower end of the movable ceiling towards the end wall body 1.

[0055] Optionally, the rotation angle of the first hook body 25 from the unlocked position to the locked position and from the locked position to the unlocked position is the first angle, and the rotation angle of the second hook body 28 from the unlocked position to the locked position and from the locked position to the unlocked position is the second angle, and the second angle is greater than the first angle.

[0056] Specifically, the second hook part 28 is longer than the first hook part 25. The second hook part 28 is a long hook, and the first hook part 25 is a short hook. Whether it is the locking process from the unlocked position to the locked position or the unlocking process from the locked position to the unlocked position, the rotation angle of the lower locking hook 36 is greater than that of the upper locking hook 35. At the same time, in combination with the different curvature of the first curved surface 26 and the second curved surface 29, taking the locking process as an example, in the first half of the locking process, the second hook part 28 first contacts the two locking pins 34 located below, and gradually pulls the two locking pins 34 below as the lower locking hook 36 rotates. Since the center of gravity of the movable roof is in the lower part, this locking method of pulling the lower locking pins 34 first can better achieve the tightening of the movable roof. Then, in the second half of the locking process, the first hook part 25 also begins to rotate and locks with the two locking pins 34 above, ensuring the smoothness of the locking process.

[0057] Optionally, the length of the first crank 6 is greater than the length of the second crank 9, the lower end of the first connecting rod 10 is hinged to the second crank 9 through the first round hole, and the upper end of the first connecting rod 10 is hinged to the first crank 6 through the first elongated hole.

[0058] Specifically, the length of the first crank 6 is greater than the length of the second crank 9, and the first connecting rod 10 is hinged to the outer end of the first crank 6 through the first elongated hole. Thus, when the upper locking mechanism 2 and the lower locking mechanism 3 are unlocked, the second operating handle 8 is used to rotate the second rotating shaft 7. Initially, the second rotating shaft 7 rotates first. Only after the upper end of the first connecting rod 10 has passed the travel of the first elongated hole at the hinge position with the first crank 6 does it begin to drive the first rotating shaft 4 to rotate. The rotation of the first rotating shaft 4 always lags behind the rotation of the second rotating shaft 7. Similarly, when the upper locking mechanism 2 and the lower locking mechanism 3 are locked, the rotation of the first rotating shaft 4 also lags behind the rotation of the second rotating shaft 7, so that the lower locking hook 36 first hooks the two lower locking pins 34 and gradually pulls them tight, and then the upper locking hook 35 hooks the two upper locking pins 34 to lock.

[0059] In this embodiment, the lower end of the first connecting rod 10 is provided with a first bend, the axis of the first bend forms a first angle with the axis of the first connecting rod 10, and the lower end of the first bend is hinged to the second crank 9.

[0060] Optionally, the first operating handle 5 includes a first lever portion 30 and a first hand-held portion 31. One end of the first lever portion 30 is connected to the first rotating shaft 4, and the first hand-held portion 31 is connected to the other end of the first lever portion 30. When the upper locking mechanism 2 is in the locked position, the first lever portion 30 hangs vertically downward so that the first hand-held portion 31 is at the lower end of the first lever portion 30. The second operating handle 8 includes a second lever portion 32 and a second hand-held portion 33. One end of the second lever portion 32 is connected to the second rotating shaft 7, and the second hand-held portion 33 is connected to the other end of the second lever portion 32. When the lower locking mechanism 3 is in the locked position, the second lever portion 32 hangs vertically downward so that the second hand-held portion 33 is at the lower end of the second lever portion 32.

[0061] Specifically, the first lever part 30 and the second lever part 32 are fixedly connected to the ends of the first rotating shaft 4 and the second rotating shaft 7, respectively, and can be connected by welding, screwing, riveting, etc. The first lever part 30 and the second lever part 32 are respectively provided with the first hand-holding part 31 and the second hand-holding part 33. The first hand-holding part 31 and the second hand-holding part 33 can be integrally formed with the first lever part 30 and the second lever part 32, respectively, and can be bent into the shape of a rectangular frame for easy gripping and operation.

[0062] Optionally, when the upper locking mechanism 2 and the lower locking mechanism 3 are in the locked position, the center height of the locking pin 34 that cooperates with the upper locking hook 35 is lower than the center height of the first rotating shaft 4, the center height of the locking pin 34 that cooperates with the lower locking hook 36 is lower than the center height of the second rotating shaft 7, and the weight of the first operating handle 5 is greater than the weight of the upper locking hook 35, and the weight of the second operating handle 8 is greater than the weight of the lower locking hook 36.

[0063] Specifically, in the vertical direction, when the upper locking hook 35 and the lower locking hook 36 are locked with the corresponding locking pins 34, the height of the center of the locking pin 34 cooperating with the upper locking hook 35 is lower than the height of the center of the first rotating shaft 4, and the height of the center of the locking pin 34 cooperating with the lower locking hook 36 is lower than the height of the center of the second rotating shaft 7. Moreover, the weight of the first operating handle 5 is greater than the weight of the upper locking hook 35, and the weight of the second operating handle 8 is greater than the weight of the lower locking hook 36. This makes the torque applied by the first operating handle 5 to the first rotating shaft 4 greater than the torque applied by the upper locking hook 35 to the first rotating shaft 4, and the torque applied by the second operating handle 8 to the second rotating shaft 7 greater than the torque applied by the lower locking hook 36 to the second rotating shaft 7. Therefore, after locking, when the vehicle generates a longitudinal force on the movable roof during operation, both the upper locking mechanism 2 and the lower locking mechanism 3 have eccentric self-locking and gravity self-locking functions.

[0064] Optionally, the third operating handle 14 is a V-shaped operating rod, one end of which is connected to the third rotating shaft 13, and the other end of which is the first free end. The fourth operating handle 17 is a V-shaped operating plate, one end of which is connected to the fourth rotating shaft 16, and the other end of which is the second free end. An arc-shaped limiting groove 21 is provided on the lower side of one end of the operating plate. When the limiting post 20 is embedded in the bottom of the limiting groove 21, the height of the center of the limiting post 20 is lower than the height of the center of the fourth rotating shaft 16.

[0065] Specifically, the third operating handle 14 is rod-shaped, and the fourth operating handle 17 is plate-shaped. A limiting groove 21 is provided on the lower side of the fourth operating handle 17, and a limiting post 20 is provided on the second lever portion 32 of the second operating handle 8. During unlocking, the third operating handle 14 and the fourth operating handle 17 rotate, causing the limiting groove 21 to rotate and disengage the limiting post 20 from the limiting groove 21, thus disengaging the anti-accidental touch function. During locking, the third operating handle 14 and the fourth operating handle 17 fall freely due to gravity, and the limiting post 20 will block the fourth operating handle 17. As the operating handle 17 falls freely, the lower side of the operating plate contacts the limiting post 20. With the rotation of the first operating handle 5, the second operating handle 8, the first rotating shaft 4, and the second rotating shaft 7, the limiting post 20 moves relative to the edge of the operating plate and moves towards the limiting groove 21 until it is embedded in the limiting groove 21. In this embodiment, when the limiting post 20 approaches the limiting groove 21, the operating plate will rotate slightly in the opposite direction, and the limiting post 20 will fall into the limiting groove 21, thus achieving the purpose of preventing accidental operation.

[0066] Furthermore, when the limiting post 20 is embedded in the bottom position of the limiting groove 21, the height of the center of the limiting post 20 is lower than the height of the center of the fourth rotating shaft 16, realizing the self-locking function of the lower anti-accidental touch operation mechanism 12, making it difficult to unlock on its own when there is no operation panel.

[0067] In this embodiment, in order to make the upper anti-accidental touch operation mechanism 11 and the lower anti-accidental touch operation mechanism 12 more compact and as close as possible to the end wall body 1, the upper end of the second connecting rod 19 is provided with a Z-shaped second bend, and the lower end is provided with a third bend that forms an angle with the axis of the second connecting rod 19. The third crank 15 is arranged in the direction close to the end wall body 1, and the fourth crank 18 is arranged in the direction away from the end wall body 1.

[0068] The present invention also provides a railway flatcar, comprising:

[0069] The body of a railway flatcar;

[0070] The movable canopy is set on the upper side of the railway flatcar body. The movable canopy includes multiple inverted U-shaped supports. The lower end of the supports slides with the railway flatcar body. The outer side of the supports is covered with a tarpaulin. Four locking posts 34 are set on the two outermost supports respectively.

[0071] The two railway flatcar end wall structures described above are detachably connected to the floor at both ends of the railway flatcar body.

[0072] Specifically, the movable canopy includes multiple inverted U-shaped supports, with the open ends of the supports facing the upper surface of the railway flatcar body and equipped with rollers. The multiple supports can move along the length of the railway flatcar body to fold or unfold the canopy cloth fixed to the outside of the multiple supports. The movable canopy allows the railway flatcar to obtain top and side protection. The aforementioned railway flatcar end wall structure is detachably connected to both ends of the railway flatcar body, which can seal the two ends where the movable canopy cannot provide protection, thereby improving the protection effect. Furthermore, the upper locking mechanism 2 and the lower locking mechanism 3 on it can lock the locking pins 34 on the supports of the movable canopy, so that the outermost supports at both ends can be tightly attached to the two end wall bodies 1, improving the sealing effect and thus improving the protection effect.

[0073] 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 railway flatcar end wall structure, characterized in that, include: The end wall body, the lower end of which is detachably connected to the end floor of the railway flatcar; An upper locking mechanism and a lower locking mechanism are spaced apart from top to bottom on the outer side of the end wall body. The upper locking mechanism includes a first rotating shaft rotatably connected to the end wall body. Each end of the first rotating shaft is provided with an upper locking hook and a first operating handle. A first crank is provided in the middle of the first rotating shaft. The lower locking mechanism includes a second rotating shaft rotatably connected to the end wall body. Each end of the second rotating shaft is provided with a lower locking hook and a second operating handle. A second crank is provided in the middle of the second rotating shaft. A first connecting rod is connected between the first crank and the second crank. The upper locking hook and the lower locking hook are respectively used to cooperate with the locking post of the movable canopy on the railway flatcar to lock the locking post onto the end wall body; Below the upper locking mechanism and below the lower locking mechanism, respectively, are provided an upper anti-accidental touch operating mechanism and a lower anti-accidental touch operating mechanism. The upper anti-accidental touch operating mechanism includes a third rotating shaft rotatably connected to the end wall body. A third operating handle is provided at each end of the third rotating shaft, and a third crank is provided in the middle of the third rotating shaft. The lower anti-accidental touch operating mechanism includes a fourth rotating shaft rotatably connected to the end wall body. A fourth operating handle is provided at each end of the fourth rotating shaft, and a fourth crank is provided in the middle of the fourth rotating shaft. The third crank and the fourth crank are connected... A second connecting rod is connected to the second operating handle. A limit post is provided on the side of the second operating handle near the fourth operating handle, and a limit groove is provided on one side of the fourth operating handle. When the second operating handle rotates in the operating direction toward the locking position of the lower locking mechanism, the limit post contacts the lower side of the fourth operating handle. The fourth operating handle will rotate naturally under the action of gravity, so that the lower side of the fourth operating handle is against the moving limit post and moves relative to the limit post until the lower locking mechanism reaches the locking position. The limit post can be embedded in the limit groove so that the second operating handle cannot drive the second rotating shaft to rotate. The third operating handle is a V-shaped operating rod, one end of which is connected to the third rotating shaft, and the other end of which is a first free end. The fourth operating handle is a V-shaped operating plate, one end of which is connected to the fourth rotating shaft, and the other end of which is a second free end. An arc-shaped limiting groove is provided on the lower side of the one end of the operating plate. When the limiting post is embedded in the bottom of the limiting groove, the height of the center of the limiting post is lower than the height of the center of the fourth rotating shaft.

2. The railway flatcar end wall structure according to claim 1, characterized in that, It also includes an elastic telescopic mechanism, the housing end of which is hinged to the end wall body. The hinge position of the housing end of the elastic telescopic mechanism to the end wall body is located above the second rotating shaft. A fifth crank is also provided in the middle of the second rotating shaft. The telescopic end of the elastic telescopic mechanism is hinged to the fifth crank. The elastic telescopic mechanism is in a pre-compressed state, and the telescopic end of the elastic telescopic mechanism can apply a downward thrust to the fifth crank.

3. The railway flatcar end wall structure according to claim 1, characterized in that, The upper locking hook includes a first connecting part and a first hook body part. One end of the first connecting part is connected to the first rotating shaft, and the first hook body part is connected to the other end of the first connecting part. The end face of the first hook body part near the first rotating shaft is a first curved surface. The lower locking hook includes a second connecting part and a second hook body part. One end of the second connecting part is connected to the second rotating shaft, and the second hook body part is connected to the other end of the second connecting part. The end face of the second hook body part near the second rotating shaft is a second curved surface. As the second hook body part rotates in the locking direction, the contact position between the second curved surface and the locking pin moves towards the root of the second hook body part, and the second hook body part causes the locking pin to move towards the end wall body.

4. The railway flatcar end wall structure according to claim 3, characterized in that, The rotation angle of the first hook body from the unlocked position to the locked position and from the locked position to the unlocked position is the first angle, and the rotation angle of the second hook body from the unlocked position to the locked position and from the locked position to the unlocked position is the second angle, which is greater than the first angle.

5. The railway flatcar end wall structure according to claim 4, characterized in that, The length of the first crank is greater than the length of the second crank. The lower end of the first connecting rod is hinged to the second crank through a first circular hole, and the upper end of the first connecting rod is hinged to the first crank through a first elongated hole.

6. The railway flatcar end wall structure according to claim 1, characterized in that, The first operating handle includes a first lever portion and a first hand-held portion. One end of the first lever portion is connected to the first rotating shaft, and the first hand-held portion is connected to the other end of the first lever portion. When the upper locking mechanism is in the locked position, the first lever portion hangs vertically downwards, so that the first hand-held portion is at the lower end of the first lever portion. The second operating handle includes a second lever portion and a second hand-held portion. One end of the second lever portion is connected to the second rotating shaft, and the second hand-held portion is connected to the other end of the second lever portion. When the lower locking mechanism is in the locked position, the second lever portion hangs vertically downwards, so that the second hand-held portion is at the lower end of the second lever portion.

7. The railway flatcar end wall structure according to claim 6, characterized in that, When the upper locking mechanism and the lower locking mechanism are in the locked position, the height of the center of the locking pin that cooperates with the upper locking hook is lower than the height of the center of the first rotating shaft, the height of the center of the locking pin that cooperates with the lower locking hook is lower than the height of the center of the second rotating shaft, and the weight of the first operating handle is greater than the weight of the upper locking hook, and the weight of the second operating handle is greater than the weight of the lower locking hook.

8. A railway flatcar, characterized in that, include: The body of a railway flatcar; The movable canopy is located on the upper side of the railway flatcar body. The movable canopy includes multiple inverted U-shaped supports. The lower end of the supports slides with the railway flatcar body. A tarpaulin is provided on the outer side of the supports. Four locking posts are respectively provided on the two outermost supports. Two railway flatcar end wall structures according to any one of claims 1-7, wherein the two railway flatcar end wall structures are respectively detachably connected to the floor at both ends of the railway flatcar body.

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