Split-type container lock seat structure, freight wagon, and method

By using a split-type container lock seat structure, the rotational connection and engagement of the first lock seat, the second lock seat and the stop member solve the problems of high cost and space occupation caused by the complexity of the lock seat in the prior art, and realize economical and practical lock seat fixing and stable connection.

WO2026097646A1PCT designated stage Publication Date: 2026-05-15CRRC SHANDONG CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
CRRC SHANDONG CO LTD
Filing Date
2024-12-06
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing container lock seat structures are complex, resulting in high production costs, inconvenient installation, reduced vehicle body strength and service life, and space occupation, thus limiting transportation range.

Method used

The container lock adopts a split-type lock seat structure, including a first lock seat, a second lock seat, and a stop. The container lock is fixed by rotation and locking, avoiding the need to open lock slots on the vehicle body, and a reliable connection is achieved by using connectors.

Benefits of technology

It reduces manufacturing costs and process complexity, ensures vehicle body strength, expands transportation range, simplifies operation, reduces maintenance costs, and achieves a stable and reliable connection of the lock seat.

✦ Generated by Eureka AI based on patent content.

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Abstract

A split-type container lock seat structure, characterized in comprising a first lock seat (1), a second lock seat (2), and a stopper (3). The first lock seat (1), the second lock seat (2), and the stopper (3) are all fixed to the surface of a wagon body (4), the first lock seat (1) and the second lock seat (2) are spaced apart from each other, and a first space is formed among the first lock seat (1), the second lock seat (2), and the stopper (3). A container lock (8) is rotatably connected to the first lock seat (1) and the second lock seat (2), the container lock (8) is configured to flip into the first space by a predetermined angle, and one side of the container lock (8) engages the stopper (3) to restrict vertical movement of the container lock (8).
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Description

A split-type container lock seat structure, a truck body and a method

[0001] Cross-reference to related applications

[0002] This invention claims priority to Chinese Patent Application No. 202411592226.5, filed with the China National Intellectual Property Administration on November 8, 2024, entitled "A Split-Type Container Lock Seat Structure, Truck Carriage and Method", the entire contents of which are incorporated herein by reference and constitute a part of this invention for all purposes. Technical Field

[0003] This invention relates to the field of container lock seats, and in particular to a split-type container lock seat structure, truck body, and method. Background Technology

[0004] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0005] With increasing environmental protection requirements, low-carbon transportation is receiving more and more attention. Currently, container transportation is a mainstream low-carbon transportation mode, and container lock seats, as an important component in this transportation, are widely used. However, in the existing technology, referring to Figure 1, an integrated lock seat 9 is used. The integrated lock seat has a lock head in the middle, which is used to lock and connect to the container. The integrated lock seat 9 has a complex structure. This device often needs to be manufactured by casting and other methods, resulting in high production costs and inconvenient installation and operation. In addition, the integrated lock seat 9 also requires corresponding lock slots to be made in the relevant support parts of the vehicle body (such as side beams) for installation. The opening of lock slots will affect the strength and rigidity of the relevant support parts of the vehicle body, shorten the service life of the vehicle body, and increase maintenance costs. Moreover, the integrated lock seat protrudes from the vehicle body, which limits the scope of use of the truck body, mainly for securing containers.

[0006] Chinese patent application CN2006201338849 discloses a tilting locking device for railway container cars. The device includes two parts: a lock body and a stop seat. The lock body can be tilted to the inside of the vehicle, and the stop seat can also be tilted. After the stop seat is tilted upwards, the lock body can be tilted to the inside of the vehicle for storage. Although it can store the lock body, the problem is that the structure is complex. Both parts need to be tilted. Whether the lock body tilts downwards to the inside of the car body or not, a lock slot hole needs to be opened on the surface of the car body, which affects the strength of the car body. Moreover, multiple tilting is required to store the lock body, making the operation inconvenient. Summary of the Invention

[0007] To address the shortcomings of existing technologies, the purpose of this invention is to provide a split-type container lock seat structure that is simple in structure, economical and practical, and easy to manufacture and install.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0009] A split-type container lock seat structure includes a first lock seat, a second lock seat, and a stop. The first lock seat, the second lock seat, and the stop are all fixed to the surface of the vehicle body. The first lock seat and the second lock seat are spaced apart, and a first space is formed between the first lock seat, the second lock seat, and the stop. The container lock is rotatably connected to the first lock seat and the second lock seat. After the container lock is flipped at a set angle, it enters the first space. One side of the container lock engages with the stop to limit the vertical movement of the container lock.

[0010] As described above, in a split-type container lock seat structure, the first side of the container lock is rotatably connected to the first lock seat and the second lock seat, the second side of the container lock is disposed opposite to the first side, and the stop member can be engaged with the second side of the container lock.

[0011] As described above, in a split-type container lock seat structure, the stop member has a conical protrusion on the side facing the container lock, and a notch is formed on the inner side of the conical protrusion. The width of the stop member on the side away from the vehicle body is greater than the width on the other side. As the stop member moves gradually from the side away from the vehicle body toward the vehicle body, the width of the conical protrusion of the stop member gradually decreases.

[0012] As described above, in a split-type container lock seat structure, the container lock has a protruding step on the bottom side facing the stop member so that a recess is formed on the side of the container lock away from the vehicle body. The recess cooperates with the conical protrusion, and the protruding step is adapted to the recess to realize the locking of the stop member with the container lock.

[0013] In the split-type container lock seat structure described above, the distance between the first lock seat and the second lock seat is greater than the length of the stop member;

[0014] The first lock seat and the second lock seat have the same structure and the same dimensions.

[0015] As described above, in a split-type container lock seat structure, one end of the first lock seat and the second lock seat extends beyond the outer or inner edge of the vehicle body, and the ends of the first lock seat and the second lock seat extending beyond the vehicle body are movably connected to the container lock.

[0016] As described above, in a split container lock seat structure, the first lock seat and the second lock seat have a first opening at the end extending beyond the vehicle body, and the container lock has a second opening on one side, with the connector passing through the first and second openings.

[0017] As described above, in order to achieve a reliable connection between the container lock and the first lock seat and the second lock seat, and to enable the container lock to be flipped, the connecting member is a connecting shaft, which is locked by a cotter pin after passing through the first opening and the second opening.

[0018] Alternatively, the connecting parts are fastening bolts and nuts. When the nuts are loosened, the container lock can be flipped over, and after flipping, it can be locked back in place by the nuts.

[0019] Secondly, the present invention provides a freight car body, including a car body, wherein the car body is provided with the aforementioned split container lock seat structure.

[0020] The working method of the split-type container lock seat structure described above includes the following:

[0021] A first lock seat, a second lock seat, and a stop are provided on the surface of the vehicle body, and a first space is formed between the first lock seat, the second lock seat, and the stop.

[0022] The container lock is rotatably connected to the first lock seat and the second lock seat;

[0023] After the container lock flips to the set angle, it enters the first space, and one side of the container lock engages with the stop to limit the vertical movement of the container lock.

[0024] The container is hoisted onto the vehicle body and locked with a container lock.

[0025] The beneficial effects of the present invention are as follows:

[0026] 1) The lock seat structure in this invention is reasonably designed, including a first lock seat, a second lock seat, and a stop piece that are set separately. The three parts form a first space. One side of the container lock is rotatably connected to the first lock seat and the second lock seat, and can enter the first space and engage with the stop piece to fix the container lock. In this way, the lock seat is set in multiple parts instead of a whole structural component, which reduces manufacturing costs and process difficulty. The structure is simple and facilitates the separate processing and replacement of the first lock seat, the second lock seat, and the stop piece, effectively controlling processing and maintenance costs and reducing environmental problems caused by casting due to complex structures. In addition, there is no need to set a lock hole slot in the vehicle body, which ensures the strength of the vehicle body. Under normal conditions, the container lock can be flipped to one side of the vehicle body without occupying the space on the surface of the vehicle body, thus expanding the scope of use of the vehicle body.

[0027] 2) In this invention, the first side of the container lock is rotatably connected to the first lock seat and the second lock seat. Thus, after the container lock is flipped over and enters the first space, it engages with one side of the container through the stop to limit the vertical movement of the container lock. At this time, the other side of the container lock is connected to the first lock seat and the second lock seat to limit the lateral movement of the container lock, and works together with the stop to limit the lateral movement of the container lock, ensuring the stability and reliability of the lock seat structure.

[0028] 3) In this invention, the length of the stop is less than the distance between the first lock seat and the second lock seat. The stop has a conical protrusion on the side facing the container lock. The stop forms a recess on the inner side of the conical protrusion. The step of the container lock can be inserted into the recess. The conical protrusion and the recess are engaged with the side of the container lock. This not only allows the container lock to be inserted into the recess of the stop, ensuring effective engagement between the container lock and the stop, but also allows the container lock to disengage from the stop under external force, thereby flipping the container lock to the outside or inside of the vehicle body without occupying space on the surface of the vehicle body.

[0029] 4) The first lock seat and the second lock seat in this invention have the same structure and can be interchanged. One end of the first lock seat and the second lock seat is set beyond the outer edge or inner edge of the vehicle body, which facilitates the connection with the container lock and also makes it easy for the container lock to be flipped to the inner gap or the outer side of the vehicle body, making full use of the space.

[0030] 5) In this invention, the first lock seat, the second lock seat, and the container lock are connected by a connector. The structure is simple and not only ensures a reliable connection between the three, but also allows the container lock to be flipped relative to the first lock seat and the second lock seat when the connector is a connecting shaft and locked by a cotter pin. Attached Figure Description

[0031] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0032] Figure 1 is a schematic diagram of the structure of an integrated lock base in the prior art.

[0033] Figure 2 is a schematic diagram of some components of a split container lock seat structure according to one or more embodiments of the present invention being installed on the surface of the vehicle body.

[0034] Figure 3 is a schematic diagram of the working state of a split container lock seat structure according to one or more embodiments of the present invention.

[0035] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0036] Among them: 1. First lock seat, 2. Second lock seat, 3. Stop, 3-1. Conical protrusion, 3-2. Notch, 4. Vehicle body, 5. Bushing, 6. Connecting shaft, 7. First opening, 8. Container lock, 8-1. Flat plate, 8-2. Lock body, 8-3. Step, 9. Integrated lock seat. Detailed Implementation

[0037] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0038] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] As described in the background section, the existing technology has the problem of container lock seats occupying vehicle space. In order to solve the above technical problem, the present invention proposes a split container lock seat structure.

[0040] Example 1

[0041] In a typical embodiment of the present invention, referring to FIG2, a split container lock seat structure includes a first lock seat 1, a second lock seat 2, and a stop member 3. The first lock seat 1, the second lock seat 2, and the stop member 3 are all fixed to the surface of the vehicle body 4. The first lock seat 1 and the second lock seat 2 are spaced apart, and a first space is formed between the first lock seat 1, the second lock seat 2, and the stop member 3. The container lock 8 is rotatably connected to the first lock seat 1 and the second lock seat 2. After the container lock is flipped at a set angle, it enters the first space. One side of the container lock 8 engages with the stop member 3 to limit the vertical movement of the container lock 8.

[0042] It is easy to understand that the container lock 8 has four sides arranged in a circle. The first side of the container lock is rotatably connected to the first lock seat 1 and the second lock seat 2. The second side of the container lock 8 is arranged opposite to the first side. The stop can be engaged with the second side of the container lock. The third and fourth sides of the container lock 8 can contact the inner sides of the first lock seat and the second lock seat, respectively.

[0043] In this embodiment, the stop 3 is provided with a conical protrusion 3-1 on the side facing the container lock 8. The stop 3 forms a notch 3-2 on the inner side of the conical protrusion. The width of the stop 3 on the side away from the vehicle body is greater than the width of the other side of the stop 3. As the stop 3 moves from the side away from the vehicle body 4 towards the vehicle body 4, the width of the conical protrusion of the stop 3 gradually decreases. This facilitates the stop 3 to press down on the container lock 8 in the vertical direction.

[0044] It is easy to understand that the container lock 8 has a protruding step 8-3 on the bottom side facing the stop 3 so that the side of the container lock away from the vehicle body forms a recess. The recess cooperates with the conical protrusion, and the protruding step 8-3 is adapted to the recess. That is, the protruding step can be inserted into the recess of the stop to realize the stop engaging the container lock.

[0045] The first lock seat 1 and the second lock seat 2 have the same structure and the same size. The distance between the first lock seat and the second lock seat is greater than the length of the stop.

[0046] One end of the first lock seat 1 and the second lock seat 2 extends beyond the outer or inner edge of the vehicle body 4. In this embodiment, to facilitate the connection between the first lock seat, the second lock seat and the container lock, one end of the first lock seat and the second lock seat is set beyond the outer edge of the vehicle body, so that the connecting part is located on the outside of the vehicle body, which will not occupy too much space on the upper surface of the vehicle body, and can also facilitate the flipping of the container lock. The end of the first lock seat and the second lock seat that extends beyond the vehicle body is movably connected to the container lock.

[0047] The first lock seat 1 and the second lock seat 2 are provided with a first opening 7 at one end of the vehicle body 4, and a second opening is provided on one side of the container lock. The connector passes through the first opening and the second opening.

[0048] In this embodiment, the first lock seat 1 and the second lock seat 2 are lock rods, the length of which is less than the width of the vehicle body, such as the side beam. The lock rod is welded and fixed to the upper surface of the vehicle body. One end of the lock rod is provided with an annular ring, the upper surface of which is on the same plane as the corresponding lock rod. The outer diameter of the annular ring is greater than the thickness of the lock rod. The annular ring is provided with a first opening 7. The distance between the first lock seat and the second lock seat is the same as the width of the container lock. The distance A between the first opening and the outer edge of the vehicle body 4 can be 80mm, and the distance D between the first lock seat and the second lock seat can be 260mm.

[0049] Referring to Figure 3, the stop 3 is specifically a stop block, which is a cuboid block. The stop block has a conical protrusion 3-1 and a recess 3-2 on the side facing the first space. The stop is welded and fixed to the surface of the vehicle body. The stop 3 is spaced apart from the inner side of the vehicle body 4. Along the width direction of the side beam of the vehicle body, the first lock seat 1, the second lock seat 2 and the stop 3 are spaced apart.

[0050] In addition, the container lock 8 includes a flat plate 8-1, a ring post is fixedly provided on one side of the flat plate 8-1, and a second opening is provided at the ring post. The lock body 8-2 is provided on the side of the flat plate away from the vehicle body. In this way, after the container lock is flipped relative to the vehicle body, it can be flipped to the outside of the vehicle body. The space outside the vehicle body is large, which not only facilitates the connection between the container lock 8 and the first lock seat and the second lock seat, but also ensures the flipping space of the container lock 8.

[0051] It is easy to understand that, in order to achieve a reliable connection between the container lock and the first lock seat 1 and the second lock seat 2, and to enable the container lock 8 to be flipped, the connecting part is a connecting shaft 6. After the connecting shaft passes through the first opening and the second opening, it is locked by a cotter pin. During installation, after the connecting shaft 6 passes through the container lock, the first lock seat and the second lock seat, bushings 5 ​​are respectively set at both ends of the connecting shaft. The bushings 5 ​​have openings. The cotter pin passes through the opening of the bushing 5 and the connecting shaft to fix it, preventing the connecting shaft from coming out, thereby realizing the flipping and fixing of the container lock.

[0052] Alternatively, in other examples, the connectors are fastening bolts and nuts. The fastening bolts pass through the first lock seat, the container lock, and the second lock seat, and are then fastened by the nuts. When the nuts are loosened, the container lock can be flipped over, and after flipping, it can be locked by the nuts.

[0053] A method for operating a split-type container lock seat structure includes the following:

[0054] A first lock seat, a second lock seat, and a stop are provided on the surface of the vehicle body, and a first space is formed between the first lock seat, the second lock seat, and the stop.

[0055] The container lock is rotatably connected to the first lock seat and the second lock seat;

[0056] After the container lock flips to the set angle, it enters the first space, and one side of the container lock engages with the stop to limit the vertical movement of the container lock.

[0057] The container is hoisted onto the vehicle body and locked with a container lock.

[0058] The lock seat structure provided in this embodiment is simple in structure and adopts a split structure, which reduces manufacturing costs and process difficulty. It can be realized by machining and other methods, reducing the environmental problems caused by casting due to complex structures. There is no need to open lock slot holes on the vehicle body. It can be directly connected and fixed to the vehicle body by welding or bonding, which is more reliable and environmentally friendly than the traditional method.

[0059] Example 2

[0060] This embodiment discloses a freight car body, including a car body with a split container lock seat structure as described in Embodiment 1. When the car body needs to secure the container, the container lock can be flipped relative to the car body into the first space and locked by a stop. When the container does not need to be locked, the container lock can be flipped outward relative to the stop. Thus, although the car body surface has a first lock seat, a second lock seat, and a stop, there is no prominent lock body, allowing the car body to be used for transporting other components.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A split-type container lock seat structure, characterized in that, It includes a first lock seat, a second lock seat, and a stop. The first lock seat, the second lock seat, and the stop are all fixed to the surface of the vehicle body. The first lock seat and the second lock seat are spaced apart, and a first space is formed between the first lock seat, the second lock seat, and the stop. The container lock is rotatably connected to the first lock seat and the second lock seat. After the container lock is flipped to a set angle, it enters the first space. One side of the container lock engages with the stop to limit the vertical movement of the container lock.

2. The split-type container lock seat structure according to claim 1, characterized in that, The first side of the container lock is rotatably connected to the first lock seat and the second lock seat, the second side of the container lock is opposite to the first side, and the stop member can be engaged with the second side of the container lock.

3. The split-type container lock seat structure according to claim 1, characterized in that, The stop member has a conical protrusion on the side facing the container lock. The stop member has a notch on the inner side of the conical protrusion. The width of the stop member on the side away from the vehicle body is greater than the width on the other side. As the stop member moves from the side away from the vehicle body toward the vehicle body, the width of the conical protrusion of the stop member gradually decreases.

4. The split-type container lock seat structure according to claim 3, characterized in that, The container lock has a protruding step on the bottom side facing the stop, so that the side of the container lock away from the vehicle body forms a recess. The recess cooperates with the conical protrusion, and the protruding step is adapted to the recess, so as to realize the locking of the stop on the container lock.

5. A split-type container lock seat structure according to claim 1, characterized in that, The distance between the first lock seat and the second lock seat is greater than the length of the stop member; The first lock seat and the second lock seat have the same structure and the same dimensions.

6. A split-type container lock seat structure according to claim 1, characterized in that, One end of the first lock seat and the second lock seat extends beyond the outer or inner edge of the vehicle body, and the ends of the first lock seat and the second lock seat extending beyond the vehicle body are movably connected to the container lock.

7. A split-type container lock seat structure according to claim 6, characterized in that, The first lock seat and the second lock seat have a first opening at the end that extends beyond the vehicle body, and the container lock has a second opening on one side. The connector passes through the first opening and the second opening.

8. A split-type container lock seat structure according to claim 7, characterized in that, The connector is a connecting shaft, which passes through the first opening and the second opening and is then locked by a cotter pin. Alternatively, the connecting parts are fastening bolts and nuts.

9. A freight car, characterized in that, The vehicle body is provided with a split container lock seat structure as described in any one of claims 1-8.

10. The working method of a split-type container lock seat structure according to any one of claims 1-8, characterized in that, Includes the following: A first lock seat, a second lock seat, and a stop are provided on the surface of the vehicle body, and a first space is formed between the first lock seat, the second lock seat, and the stop. The container lock is rotatably connected to the first lock seat and the second lock seat; After the container lock flips to the set angle, it enters the first space, and one side of the container lock engages with the stop to limit the vertical movement of the container lock. The container is hoisted onto the vehicle body and locked with a container lock.