Railway container flat car locking device

Abstract

The application provides a railway container flat car locking device, which comprises a mounting seat, an elastic plug-in part and a first locking part. The mounting seat is arranged through the flat car in the up-down direction and is detachably connected with the flat car. The elastic plug-in part is arranged through the mounting seat in the axial direction of the mounting seat and is slidably connected with the mounting seat. The upper end of the elastic plug-in part can be elastically protruded from the top surface of the mounting seat to be plug-in matched with the plug-in groove. A first positioning groove extending in the radial direction is arranged on the outer peripheral wall of the elastic plug-in part. The first locking part is slidably connected with the bottom of the mounting seat and is used for being plugged into the first positioning groove to lock the axial position of the elastic plug-in part. The railway container flat car locking device provided by the application can quickly hide the elastic plug-in part, improves the work efficiency and eliminates the risk of personnel injury.

Description

Technical Field

[0001] This invention belongs to the technical field of auxiliary equipment for container flatcars, and more specifically, relates to a locking device for railway container flatcars. Background Technology

[0002] Railway flatcars are mainly used to transport goods with large volume or weight, such as steel, timber, automobiles, and machinery. Railway flatcars can also be used with the help of containers to transport other goods.

[0003] In existing technology, containers are typically locked to railway flatcars using a flip-type locking device. When in use, the flip-type locking device flips to the top of the railway flatcar to lock the container; when not in use, it flips to the bottom of the railway car and is hidden. However, during the flipping process, workers need to climb onto the railway flatcar and stand on it to operate the flipping mechanism downwards. The flipping process is extremely cumbersome, affecting work efficiency and posing a risk of injury due to falls during climbing. Summary of the Invention

[0004] This invention provides a locking device for railway container flatcars, which can quickly conceal the elastic connector, improving work efficiency and eliminating the risk of personnel injury.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a railway container flatcar locking device is provided, including a mounting base, an elastic connector, and a first locking member. The mounting base is disposed through the flatcar in the vertical direction and is detachably connected to the flatcar. The elastic connector is disposed through the mounting base in the axial direction and is slidably connected to the mounting base. The upper end of the elastic connector can elastically protrude from the top surface of the mounting base to engage with the connector groove. A radially extending first positioning groove is provided on the outer peripheral wall of the elastic connector. The first locking member is slidably connected to the bottom of the mounting base and is used to engage with the first positioning groove to lock the axial position of the elastic connector.

[0006] In one possible implementation, the mounting base has a first sliding cavity extending through the axis, and an elastic connector is slidably connected to the first sliding cavity. The elastic connector includes a plug post and a first tension spring. The plug post is slidably connected to the first sliding cavity along the axis of the mounting base, and a first positioning groove is provided on the outer peripheral wall of the plug post. The first tension spring is sleeved on the outer periphery of the plug post, with one end connected to the outer peripheral wall of the plug post and the other end connected to the inner wall of the first sliding cavity. The first tension spring can elastically pull the plug post upward so that the upper end of the plug post is inserted into the plug groove.

[0007] In some embodiments, the lower part of the plug-in post is provided with an axially extending second sliding cavity, and an elastic pusher is slidably connected in the second sliding cavity. The lower end of the plug-in post is provided with a second locking member for locking the axial position of the elastic pusher. The upper outer peripheral wall of the plug-in post is provided with a third sliding cavity that is perpendicular to the axial direction of the plug-in post and communicates with the second sliding cavity. An elastic positioning member that extends radially and is inserted into the locking groove is slidably connected in the third sliding cavity. The inner end of the elastic positioning member is provided with a guide slope for abutting against the upper end of the elastic pusher. The elastic positioning member can be inserted into the locking groove under the push of the elastic pusher.

[0008] In some embodiments, the elastic pusher includes a push rod and a second tension spring. The push rod is slidably connected to the second sliding cavity. The second tension spring is sleeved on the outer periphery of the push rod. One end of the second tension spring is connected to the outer peripheral wall of the push rod, and the other end is connected to the inner wall of the second sliding cavity. The second tension spring can pull the push rod up to push the guide slope so that the elastic positioning member is inserted into the locking groove.

[0009] In some embodiments, the elastic positioning member includes a positioning post and a first elastic member. The positioning post is slidably connected in the third sliding cavity, and the guide slope is disposed below the inner end of the positioning post. The first elastic member is sleeved on the outer periphery of the positioning post. One end of the first elastic member is connected to the outer peripheral wall of the positioning post, and the other end is connected to the inner wall of the third sliding cavity. The first elastic member can elastically push the positioning post to retract into the third sliding cavity.

[0010] In some embodiments, the outer peripheral wall of the plug is provided with a clearance cavity that communicates with the second sliding cavity and is located below the third sliding cavity. A swing limiting member capable of vertical swinging is rotatably connected in the clearance cavity. The upper part of the elastic push member is provided with a driving member for driving the swing limiting member to swing vertically. When the elastic push member moves upward, the driving member can drive the swing limiting member to swing vertically until it protrudes outward from the outer peripheral wall of the plug and abuts against the inner peripheral wall of the limiting groove to lock the axial position of the elastic plug member.

[0011] In some embodiments, the driving member is a rack extending axially along the elastic pusher member, and the swing limiting member includes a rotating shaft, a gear, and a swing rod. The rotating shaft is rotatably connected in the clearance cavity and the main shaft extends tangentially along the insertion post. The gear is fixedly sleeved on the outer periphery of the rotating shaft and meshes with the rack. The swing rod is connected to the outer periphery of the rotating shaft and is located outside the end face of the gear. The rack can drive the gear to rotate so that the swing rod swings outward to abut against the inner peripheral wall of the limiting groove.

[0012] In some embodiments, the lower end of the elastic push member is provided with an abutment platform that protrudes outward. The second locking member is disposed between the insertion post and the abutment platform and abuts against the top surface of the abutment platform and the lower end surface of the insertion post, respectively. The outer peripheral wall of the abutment platform is provided with a second positioning groove for the first locking member to be inserted. When the upper end of the elastic insertion member is inserted into the insertion groove and when the swing limiting member swings into the limiting groove, the first locking member can be inserted into the second positioning groove to lock the position of the elastic insertion member and the elastic push member.

[0013] In some embodiments, the first locking member includes a second elastic member, a slider, and a plug. The second elastic member is connected to the bottom of the mounting base and extends horizontally toward the elastic plug. The slider is connected to the extended end of the second elastic member and is slidably connected to the bottom surface of the mounting base along the radial direction of the elastic plug. The plug is connected to the side of the slider near the elastic plug and is used to engage with the first positioning groove or the second positioning groove.

[0014] In some embodiments, the second locking element is a U-shaped clip disposed between the insertion post and the abutment platform, the U-shaped clip engaging with the lower outer periphery of the elastic pusher.

[0015] Compared with the prior art, the railway container flatcar locking device provided in this embodiment locks the position of the elastic plug by pulling down the lower end of the elastic plug and retracting its upper end into the mounting base, and sliding the first locking member into the first positioning groove. This can quickly hide the elastic plug, improve work efficiency, and eliminate the risk of personnel injury. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front sectional view of the railway container flatcar locking device in an unused state according to an embodiment of the present invention.

[0018] Figure 2 for Figure 1 A magnified schematic diagram of the local structure at point I;

[0019] Figure 3 A front sectional view of the railway container flatcar locking device in use according to an embodiment of the present invention;

[0020] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point II.

[0021] The following are the labeling elements in the figure:

[0022] 1. Container; 2. Insertion slot; 3. Limiting slot; 4. Locking slot; 5. Flatcar; 10. Mounting base; 11. First sliding cavity; 20. Elastic insertion component; 21. First tension spring; 22. Insertion post; 221. First positioning slot; 222. Second sliding cavity; 223. Third sliding cavity; 224. Clearance cavity; 30. First locking component; 31. Second elastic component; 32. Slider; 33. Insert block; 40. Elastic pushing component; 41. Second tension spring; 42. Push rod; 50. Second locking component; 60. Elastic positioning component; 61. Positioning post; 611. Guide slope; 62. First elastic component; 70. Swing limiting component; 71. Rotating shaft; 72. Gear; 73. Swing rod; 80. Driving component; 90. Abutment platform; 91. Second positioning slot. Detailed Implementation

[0023] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0024] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a number" means two or more, unless otherwise explicitly specified.

[0026] Please refer to the following: Figures 1 to 4The railway container flatcar locking device provided by the present invention will now be described. The railway container flatcar locking device includes a mounting base 10, an elastic connector 20, and a first locking member 30. The mounting base 10 is disposed through the flatcar 5 in the vertical direction and is detachably connected to the flatcar 5. The elastic connector 20 is disposed through the mounting base 10 in the axial direction and is slidably connected to the mounting base 10. The upper end of the elastic connector 20 can elastically protrude from the top surface of the mounting base 10 to engage with the connector groove 2. The outer peripheral wall of the elastic connector 20 is provided with a radially extending first positioning groove 221. The first locking member 30 is slidably connected to the bottom of the mounting base 10 and is used to engage with the first positioning groove 221 to lock the axial position of the elastic connector 20.

[0027] This application provides a locking device for railway container flatcars. In actual use, the projection of the flatcar 5 on the ground is rectangular. Four locking devices are provided for the railway container flatcar 5, each corresponding to one of the four right-angled parts of the flatcar 5. First, the mounting base 10 is embedded in the flatcar 5 and fixed with bolts. Then, the lower end of the elastic connector 20 is pulled down so that its upper end retracts into the mounting base 10, and the first locking member 30 slides into the first positioning groove 221 to lock the position of the elastic connector 20. This allows the elastic connector 20 to be quickly hidden, improving work efficiency and eliminating the risk of personnel injury.

[0028] When it is necessary to install container 1 on flatcar 5, container 1 is first hoisted onto flatcar 5, and the insertion slot 2 and elastic insertion piece 20 are aligned vertically. Then, the first locking piece 30 is moved to disengage from the first positioning slot 221, and the elastic insertion piece 20 is elastically inserted into the insertion slot 2, thereby realizing the rapid locking of the relative position of container 1 and flatcar 5.

[0029] Compared with the prior art, the railway container flatcar locking device provided in this embodiment can quickly hide the elastic plug 20 by pulling down the lower end of the elastic plug 20 so that its upper end retracts into the mounting base 10 and the first locking member 30 slides into the first positioning groove 221 to lock the position of the elastic plug 20, thereby improving work efficiency and eliminating the risk of personnel injury.

[0030] In one possible implementation, the aforementioned mounting base 10 adopts the following... Figure 1 and Figure 3 The structure shown is described in the following document. Figure 1 and Figure 3The mounting base 10 is provided with an axially penetrating first sliding cavity 11. The elastic plug 20 is slidably connected in the first sliding cavity 11. The elastic plug 20 includes a plug post 22 and a first tension spring 21. The plug post 22 is slidably connected in the first sliding cavity 11 along the axial direction of the mounting base 10. The first positioning groove 221 is provided on the outer peripheral wall of the plug post 22. The first tension spring 21 is sleeved on the outer periphery of the plug post 22. One end of the first tension spring 21 is connected to the outer peripheral wall of the plug post 22, and the other end is connected to the inner wall of the first sliding cavity 11. The first tension spring 21 can elastically pull the plug post 22 upward so that the upper end of the plug post 22 is inserted into the plug groove 2.

[0031] Specifically, when it is necessary to hide the elastic connector 20, pull down the lower end of the connector post 22 so that its upper end retracts into the mounting base 10, and let the first locking member 30 slide into the first positioning groove 221 to lock the position of the elastic connector 20 (at this time, the first tension spring 21 is in a stretched state). This can quickly hide the elastic connector 20, improve work efficiency, eliminate the risk of personnel injury, and also avoid the situation where the elastic connector 20 is exposed to the outside for a long time and is damaged when not in use.

[0032] When it is necessary to install container 1 on flatcar 5, container 1 is first hoisted onto flatcar 5 and the insertion slot 2 and insertion post 22 are aligned vertically. Then, the first locking piece 30 is moved horizontally to disengage from the first positioning slot 221, and the first tension spring 21 pulls the insertion post 22 into the insertion slot 2, thereby realizing the rapid locking of the relative position of container 1 and flatcar 5.

[0033] In some embodiments, see Figures 1 to 4 The lower part of the insertion post 22 is provided with an axially extending second sliding cavity 222. An elastic pusher 40 is slidably connected in the second sliding cavity 222. The lower end of the insertion post 22 is provided with a second locking member 50 for locking the axial position of the elastic pusher 40. The upper outer peripheral wall of the insertion post 22 is provided with a third sliding cavity 223 that is perpendicular to the axial direction of the insertion post 22 and communicates with the second sliding cavity 222. An elastic positioning member 60 that extends radially and is inserted into the locking groove 4 is slidably connected in the third sliding cavity 223. The inner end of the elastic positioning member 60 is provided with a guide slope 611 for abutting against the upper end of the elastic pusher 40. The elastic positioning member 60 can be inserted into the locking groove 4 under the push of the elastic pusher 40.

[0034] Specifically, when it is necessary to release the elastic connector 20, the first locking member 30 is released from locking the elastic connector 20, and the second locking member 50 continues to lock the elastic push member 40. After the elastic connector 20 is elastically inserted into the insertion groove 2, the second locking member 50 is released from locking the elastic push member 40. The elastic push member 40 slides upward to push the guide slope 611, so that the elastic positioning member 60 moves to the outside of the insertion post 22 and is inserted into the locking groove 4, thereby strengthening the stability of the connection between the container 1 and the flatcar 5.

[0035] When container 1 needs to be disassembled, one hand pulls down the lower end of the elastic pusher 40, while the other hand holds the position of the elastic connector 20, temporarily causing the elastic pusher 40 to move downward relative to the elastic connector 20, while the elastic connector 20 remains stationary. Once the elastic pusher 40 disengages from the elastic positioning member 60 and the outer end of the elastic positioning member 60 automatically retracts into the third sliding cavity 223, the hand releases the elastic connector 20, and the elastic pusher 40 is pulled down further, causing the upper end of the elastic connector 20 to retract into the first sliding cavity 11. Finally, the first locking member 30 locks the elastic connector 20, and the second locking member 50 locks the axial position of the elastic pusher 40 relative to the connector 22. This operation is convenient and simple, saves manpower, and improves work efficiency.

[0036] In some embodiments, see Figure 1 and Figure 3 The elastic pusher 40 includes a push rod 42 and a second tension spring 41. The push rod 42 is slidably connected in the second sliding cavity 222. The second tension spring 41 is sleeved on the outer periphery of the push rod 42. One end of the second tension spring 41 is connected to the outer peripheral wall of the push rod 42 and the other end is connected to the inner wall of the second sliding cavity 222. The second tension spring 41 can pull the push rod 42 to push the guide slope 611 so that the elastic positioning member 60 is inserted into the locking groove 4.

[0037] Specifically, when it is necessary to release the elastic connector 20, the first locking member 30 is released from locking the elastic connector 20, and the second locking member 50 continues to lock the elastic push member 40. After the elastic connector 20 is elastically inserted into the insertion groove 2, the second locking member 50 is released from locking the elastic push member 40. The second tension spring 41 pulls the push rod 42 upward to push the guide slope 611, so that the elastic positioning member 60 moves to the outside of the insertion post 22 and is inserted into the locking groove 4, thereby strengthening the stability of the connection between the container 1 and the flatcar 5.

[0038] When container 1 needs to be disassembled, one hand pulls down the lower end of the elastic pusher 40 (the second tension spring 41 is in a stretched state), while the other hand fixes the position of the elastic connector 20, temporarily causing the elastic pusher 40 to move downward relative to the elastic connector 20, while the elastic connector 20 remains stationary. Once the elastic pusher 40 disengages from the elastic positioning member 60 and the outer end of the elastic positioning member 60 automatically retracts into the third sliding cavity 223, the hand releases the elastic connector 20, and the elastic pusher 40 continues to be pulled down, causing the upper end of the elastic connector 20 to retract into the first sliding cavity 11. Finally, the first locking member 30 locks the elastic connector 20, and the second locking member 50 locks the axial position of the push rod 42 relative to the connector 22. This operation is convenient and simple, saves manpower, and improves work efficiency.

[0039] Optionally, the outer peripheral wall of the push rod 42 is provided with a slot, and the second locking member 50 is radially slidably connected to the lower end of the plug-in post 22 and is used to engage with the slot to lock the axial position of the push rod 42 relative to the plug-in post 22.

[0040] Optionally, a connecting block is connected to the lower end of the plug-in post 22, and the second locking member 50 passes through the connecting block radially along the plug-in post 22 and is threadedly connected to the connecting block. The inner end of the second locking member 50 is used to abut against the outer peripheral wall of the push rod 42 to lock the axial position of the push rod 42 relative to the plug-in post 22.

[0041] Optionally, the lower end of the elastic pusher 40 is connected to an abutment platform 90 for abutting against the lower end face of the plug-in post 22, and the second locking member 50 is disposed between the plug-in post 22 and the abutment platform 90, and abuts against the top surface of the abutment platform 90 and the lower end face of the plug-in post 22 respectively.

[0042] In some embodiments, see Figures 1 to 4 The elastic positioning member 60 includes a positioning post 61 and a first elastic member 62. The positioning post 61 is slidably connected in the third sliding cavity 223, and the guide slope 611 is disposed below the inner end of the positioning post 61. The first elastic member 62 is sleeved on the outer periphery of the positioning post 61. One end of the first elastic member 62 is connected to the outer peripheral wall of the positioning post 61, and the other end is connected to the inner wall of the third sliding cavity 223. The first elastic member 62 can elastically push the positioning post 61 to retract into the third sliding cavity 223.

[0043] Specifically, when the elastic pusher 40 slides upward to push the guide ramp 611, the first elastic member 62 is compressed, the positioning post 61 moves to the outside of the insertion post 22 and is inserted into the locking groove 4, thereby strengthening the stability of the connection between the container 1 and the flatcar 5.

[0044] When container 1 needs to be disassembled, one hand pulls down the lower end of the elastic pusher 40, while the other hand holds the position of the elastic connector 20, temporarily causing the elastic pusher 40 to move downward relative to the elastic connector 20, while the elastic connector 20 remains stationary. After the elastic pusher 40 disengages from the elastic positioning member 60, the first elastic member 62 pulls the positioning post 61 into the third sliding cavity 223. After the outer end of the positioning post 61 retracts into the third sliding cavity 223, the hand releases the elastic connector 20, and the elastic pusher 40 continues to be pulled down, causing the upper end of the elastic connector 20 to retract into the first sliding cavity 11. Finally, the first locking member 30 locks the elastic connector 20, and the second locking member 50 locks the axial position of the elastic pusher 40 relative to the connector 22. The operation is convenient and simple, saving manpower and improving work efficiency.

[0045] In some embodiments, see Figures 1 to 4 The outer peripheral wall of the plug-in post 22 is provided with a relief cavity 224 that communicates with the second sliding cavity 222 and is located below the third sliding cavity 223. A swing limiting member 70 capable of vertical swinging is rotatably connected in the relief cavity 224. The upper part of the elastic push member 40 is provided with a driving member 80 for driving the swing limiting member 70 to swing vertically. When the elastic push member 40 moves upward, the driving member 80 can drive the swing limiting member 70 to swing vertically until it protrudes outward from the outer peripheral wall of the plug-in post 22 and abuts against the inner peripheral wall of the limiting groove 3 to lock the axial position of the elastic plug-in member 20.

[0046] Specifically, when it is necessary to release the elastic connector 20, the first locking member 30 is released from locking the elastic connector 20, and the second locking member 50 continues to lock the elastic push member 40. After the elastic connector 20 is elastically inserted into the insertion groove 2, the second locking member 50 is released from locking the elastic push member 40. The elastic push member 40 slides upward to push the guide slope 611, so that the elastic positioning member 60 moves to the outside of the insertion post 22 and is inserted into the locking groove 4. At the same time, the driving member 80, driven by the elastic push member 40, also drives the swing limiting member 70 to swing vertically to the outside of the insertion post 22 to abut against the inner sidewall of the limiting groove 3. The upward elastic pushing force of the elastic push member 40 restricts the swing limiting member 70 from swinging back into the clearance cavity 224, thereby strengthening the stability of the connection between the container 1 and the flatcar 5.

[0047] When container 1 needs to be disassembled, one hand pulls down the lower end of the elastic pusher 40, while the other hand fixes the position of the elastic connector 20, temporarily causing the elastic pusher 40 to move downward relative to the elastic connector 20, while the elastic connector 20 remains stationary. Once the elastic pusher 40 disengages from the elastic positioning member 60 and the outer end of the elastic positioning member 60 automatically retracts into the third sliding cavity 223 (simultaneously, the drive member 80, driven by the elastic pusher 40, also drives the outer end of the swing limiting member 70 to swing vertically into the clearance cavity 224), the hand releases the elastic connector 20, and the elastic pusher 40 continues to be pulled down, causing the upper end of the elastic connector 20 to retract into the first sliding cavity 11. Finally, the first locking member 30 locks the elastic connector 20, and the second locking member 50 locks the axial position of the elastic pusher 40 relative to the connector 22. This operation is convenient and simple, saves manpower, and improves work efficiency.

[0048] In some embodiments, see Figures 1 to 4 The driving component 80 is a rack extending axially along the elastic pushing component 40. The swing limiting component 70 includes a rotating shaft 71, a gear 72, and a swing rod 73. The rotating shaft 71 is rotatably connected to the relief cavity 224 and the main shaft extends tangentially along the insertion post 22. The gear 72 is fixedly sleeved on the outer periphery of the rotating shaft 71 and meshes with the rack. The swing rod 73 is connected to the outer periphery of the rotating shaft 71 and is located outside the end face of the gear 72. The rack can drive the gear 72 to rotate so that the swing rod 73 swings outward to abut against the inner peripheral wall of the limiting groove 3.

[0049] Specifically, during the upward movement of the elastic pusher 40, when the upper end of the elastic pusher 40 contacts the guide slope 611, the rack also meshes with the gear 72. While the elastic pusher 40 pushes the elastic positioning member 60 to move to the outside of the insertion post 22, the rack drives the gear 72, which in turn causes the swing rod 73 to swing vertically and abut against the inner wall of the limiting groove 3.

[0050] As the elastic pusher 40 moves downward, it gradually disengages from the elastic positioning member 60. The rack also drives the gear 72 to rotate, causing the swing arm 73 to swing vertically to its outer end and enter the clearance cavity 224. Simultaneously, the elastic pusher 40 moves upward, locking the container 1 with both the elastic positioning member 60 and the swing arm 73. Alternatively, the elastic pusher 40 can move downward while simultaneously releasing the container 1 from its lock, thus improving the locking effect of the container 1.

[0051] In some embodiments, see Figure 1 and Figure 3The lower end of the elastic push member 40 is provided with an abutment platform 90 protruding outward. The second locking member 50 is disposed between the insertion post 22 and the abutment platform 90, and abuts against the top surface of the abutment platform 90 and the lower end surface of the insertion post 22 respectively. The outer peripheral wall of the abutment platform 90 is provided with a second positioning groove 91 for the first locking member 30 to be inserted. When the upper end of the elastic insertion member 20 is inserted into the insertion groove 2 and when the swing limiting member 70 swings to the limiting groove 3, the first locking member 30 can be inserted into the second positioning groove 91 to lock the position of the elastic insertion member 20 and the elastic push member 40.

[0052] Specifically, the lower ends of the abutment platform 90 and the insertion post 22 clamp the second locking member 50, thereby limiting the relative axial position between the elastic push member 40 and the insertion post 22.

[0053] When it is necessary to release the elastic connector 20, the first locking member 30 is released from locking the elastic connector 20. The second locking member 50 continues to be embedded between the abutment platform 90 and the connector 22. After the elastic connector 20 is elastically inserted into the connector groove 2, the second locking member 50 is pulled outward from the connector 22. The elastic pusher 40 slides upward and pushes the guide slope 611, so that the elastic positioning member 60 moves to the outside of the connector 22 and is inserted into the locking groove 4, thereby strengthening the stability of the connection between the container 1 and the flatcar 5. At this time, the abutment platform 90 and the lower end face of the connector 22 abut against each other. In order to ensure that the swing limiter 70 stably limits and locks the container 1, the first locking member 30 can be inserted into the second positioning groove 91, while restricting the axial movement of the elastic connector 20 and the elastic pusher 40, thus improving the stability of the container 1 locking.

[0054] When container 1 needs to be disassembled, one hand pulls down the lower end of the elastic pusher 40, while the other hand holds the position of the elastic connector 20, temporarily causing the elastic pusher 40 to move downward relative to the elastic connector 20, while the elastic connector 20 remains stationary. Once the elastic pusher 40 disengages from the elastic positioning member 60 and the outer end of the elastic positioning member 60 automatically retracts into the third sliding cavity 223, the hand releases the elastic connector 20, and the elastic pusher 40 is pulled down further, causing the upper end of the elastic connector 20 to retract into the first sliding cavity 11. Finally, the first locking member 30 locks the elastic connector 20, and the second locking member 50 locks the axial position of the elastic pusher 40 relative to the connector 22. This operation is convenient and simple, saves manpower, and improves work efficiency.

[0055] In some embodiments, see Figure 1 and Figure 3The first locking member 30 includes a second elastic member 31, a slider 32, and a plug 33. The second elastic member 31 is connected to the bottom of the mounting base 10 and extends horizontally toward the elastic plug 20. The slider 32 is connected to the extended end of the second elastic member 31 and slides along the radial direction of the elastic plug 20 on the bottom surface of the mounting base 10. The plug 33 is connected to the side of the slider 32 near the elastic plug 20 and is used to engage with the first positioning groove 221 or the second positioning groove 91.

[0056] Specifically, when the insert 33 needs to disengage from the first positioning groove 221 or the second positioning groove 91, the slider 32 can be moved away from the elastic pusher 40 (at this time, the second elastic member 31 is in a compressed state). When the insert 33 needs to be inserted into the first positioning groove 221 or the second positioning groove 91, the slider 32 is released, and the second elastic member 31 pushes the slider 32 towards the elastic pusher 40, thus completing the locking and improving the locking efficiency.

[0057] In some embodiments, see Figure 1 The second locking member 50 is a U-shaped clip disposed between the insertion post 22 and the abutment platform 90, and the U-shaped clip is engaged with the lower outer periphery of the elastic push member 40.

[0058] Specifically, the U-shaped clip surrounds the outer periphery of the elastic pusher 40. When in use, it can be directly inserted between the abutment platform 90 and the insertion post 22. When not in use, the U-shaped clip can be pulled outward from the insertion post 22, which improves practicality.

[0059] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A locking device for railway container flatcars, wherein the bottom wall of the container is provided with an insertion groove, and the inner peripheral wall of the insertion groove is respectively provided with a limiting groove and a locking groove, the locking groove being located above the limiting groove, characterized in that, The railway container flatcar locking device includes: The mounting base extends through the flatcar in the vertical direction and is detachably connected to the flatcar. A resilient connector is provided through the mounting base along its axial direction and slidably connected to it. The upper end of the resilient connector can resiliently protrude from the top surface of the mounting base to engage with the connector slot. A radially extending first positioning groove is provided on the outer peripheral wall of the resilient connector. The first locking member is slidably connected to the bottom of the mounting base and is used to insert into the first positioning groove to lock the axial position of the elastic connector. The mounting base has a first sliding cavity extending axially through it, and the elastic connector is slidably connected within the first sliding cavity. The elastic connector includes: A plug-in pin is slidably connected to the first sliding cavity along the axial direction of the mounting base, and the first positioning groove is disposed on the outer peripheral wall of the plug-in pin; and A first tension spring is sleeved on the outer periphery of the insertion post. One end of the first tension spring is connected to the outer peripheral wall of the insertion post, and the other end is connected to the inner wall of the first sliding cavity. The first tension spring can elastically pull the insertion post upward so that the upper end of the insertion post is inserted into the insertion slot. The lower part of the plug-in post is provided with an axially extending second sliding cavity, in which an elastic pusher is slidably connected. The lower end of the plug-in post is provided with a second locking member for locking the axial position of the elastic pusher. The upper outer peripheral wall of the plug-in post is provided with a third sliding cavity perpendicular to the axial direction of the plug-in post and communicating with the second sliding cavity. The third sliding cavity is slidably connected with a radially extending elastic positioning member that is inserted into the locking groove. The inner end of the elastic positioning member is provided with a guide slope for abutting against the upper end of the elastic pusher. The elastic positioning member can be inserted into the locking groove under the push of the elastic pusher. The outer peripheral wall of the plug is provided with a clearance cavity that communicates with the second sliding cavity and is located below the third sliding cavity. A swing limiting member capable of vertical swinging is rotatably connected in the clearance cavity. The upper part of the elastic push member is provided with a driving member for driving the swing limiting member to swing vertically. When the elastic push member moves upward, the driving member can drive the swing limiting member to swing vertically until it protrudes outward from the outer peripheral wall of the plug and abuts against the inner peripheral wall of the limiting groove to lock the axial position of the elastic plug member.

2. The railway container flatcar locking device as described in claim 1, characterized in that, The elastic pusher includes: The push rod is slidably connected within the second sliding cavity; and A second tension spring is sleeved on the outer periphery of the push rod. One end of the second tension spring is connected to the outer peripheral wall of the push rod, and the other end is connected to the inner wall of the second sliding cavity. The second tension spring can pull the push rod upward to push the guide slope so that the elastic positioning member is inserted into the locking groove.

3. The railway container flatcar locking device as described in claim 1, characterized in that, The elastic positioning element includes: A positioning post is slidably connected within the third sliding cavity, and the guide slope is disposed below the inner end of the positioning post; and A first elastic element is sleeved on the outer periphery of the positioning post. One end of the first elastic element is connected to the outer peripheral wall of the positioning post, and the other end is connected to the inner wall of the third sliding cavity. The first elastic element can elastically push the positioning post to retract into the third sliding cavity.

4. The railway container flatcar locking device as described in claim 1, characterized in that, The driving component is a rack extending axially along the elastic pushing component, and the swing limiting component includes: A rotating shaft is rotatably connected within the clearance cavity, and the main shaft extends tangentially along the insertion post. A gear, fixedly sleeved on the outer circumference of the rotating shaft and meshing with the rack; and The swing arm is connected to the outer periphery of the rotating shaft and located outside the end face of the gear. The rack can drive the gear to rotate so that the swing arm swings outward to abut against the inner peripheral wall of the limiting groove.

5. The railway container flatcar locking device as described in claim 1, characterized in that, The lower end of the elastic push member is provided with an abutment platform that protrudes outward. The second locking member is disposed between the insertion post and the abutment platform and abuts against the top surface of the abutment platform and the lower end surface of the insertion post, respectively. The outer peripheral wall of the abutment platform is provided with a second positioning groove for the first locking member to be inserted. When the upper end of the elastic insertion member is inserted into the insertion groove and when the swing limiting member swings into the limiting groove, the first locking member can be inserted into the second positioning groove to lock the position of the elastic insertion member and the elastic push member.

6. The railway container flatcar locking device as described in claim 5, characterized in that, The first locking element includes: The second elastic element is connected to the bottom of the mounting base and extends horizontally toward the elastic plug-in element; A slider, connected to the extension end of the second elastic member and slidably connected to the bottom surface of the mounting base along the radial direction of the elastic connector; and The insert is connected to the side of the slider near the elastic connector and is used to engage with the first positioning groove or the second positioning groove.

7. The railway container flatcar locking device as described in claim 5, characterized in that, The second locking element is a U-shaped clip disposed between the insertion post and the abutment platform, and the U-shaped clip is engaged with the lower outer periphery of the elastic pusher.

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