Door lock device for container and container

By designing a door lock device consisting of a door body, mounting plate, and locking bar on the container, the transportation problem under special container structures has been solved, realizing a safe, low-cost, and widely applicable container door lock device.

CN223632237UActive Publication Date: 2025-12-05TAICANG CIMC SPECIAL LOGISTICS EQUIP CO LTD +2
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Patent Information

Application Number
CN202423238904.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-12-05
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

Existing container door lock devices are expensive to produce, difficult to assemble, and have reduced security and aesthetics when used with containers of special structures, thus limiting their widespread application.

Method used

A door lock device was designed, comprising a door body, a mounting plate, a locking rod, and a crank. The locking rod is mounted on the mounting plate, adapting to both conventional and special container structures, and enabling locking and unlocking.

Benefits of technology

It enables safe transportation that can be widely used on special containers, reduces production costs and assembly difficulty, and improves safety and aesthetics.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a door lock device for a container and the container, the door lock device comprises a container door body, a mounting plate, a lock rod and a crank, the container door body is used for being arranged at the end part or the side part of the container; the mounting plate is used for being arranged on a container door body or a container body of a container. The lock rod is arranged on the mounting plate and is rotationally connected with the mounting plate; the crank is arranged on the lock rod, the lock rod can be rotated through the crank, the lock rod rotates to the locking position to lock the box door body, and the lock rod rotates to the unlocking position to unlock the box door body. The lock rod is mounted through the mounting plate, so that the lock can adapt to the structures of conventional and special containers, and is wide in application range.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cargo box and container, more particularly to a door lock device for container and container. BACKGROUND

[0002] The container can load packaged or unpackaged goods for sea, land and air transportation, and the container transportation is an important transportation mode in the multimodal transport process of international trade goods. The container can be transported without moving the goods in the box, can be quickly loaded and unloaded as a transportation unit, is convenient for loading and unloading by mechanical equipment, and can be repeatedly used for a long time. Through the container for cargo transportation, the transportation efficiency can be greatly improved, and the transportation cost can be reduced.

[0003] With the development of the logistics industry, various sub-fields of containers emerge in an endless stream, and the door lock devices of the box doors are basically the same, which basically rely on the locking rod to cooperate with the door frame for locking. However, some containers cannot use conventional locking rods for locking due to the particularity of the box structure, and instead use a latch or some complex structure lock, which increases the production cost and assembly difficulty, and reduces the safety and aesthetics to different degrees, and cannot be effectively and widely applied.

[0004] Therefore, it is necessary to provide a door lock device for container and container to at least partially solve the above problems. SUMMARY

[0005] A series of simplified concepts are introduced in the summary part, which will be further described in detail in the specific embodiment part. The summary part of the utility model does not mean to try to limit the key features and necessary technical features of the claimed technical solution, and does not mean to try to determine the protection scope of the claimed technical solution.

[0006] To at least partially solve the above problems, the first aspect of the utility model provides a door lock device for container, comprising:

[0007] A box door body is arranged on the end or side of the container;

[0008] An installation plate is arranged on the box door body or the box body of the container;

[0009] A locking rod is arranged on the installation plate and is rotatably connected with the installation plate;

[0010] A crank is arranged on the locking rod, the locking rod can be rotated through the crank, the locking rod is rotated to the locking position to lock the box door body, and the locking rod is rotated to the unlocking position to unlock the box door body.

[0011] Optionally, the box door body is vertically arranged or horizontally arranged.

[0012] Optionally, the first side of the mounting plate is provided with a plurality of extension portions, the extension portions exceeding the first side of the box door body along the width direction of the box door body, and the lock rod is arranged on the extension portions and rotationally connected with the extension portions.

[0013] Optionally, the mounting plate is arranged on the mounting surface of the box door body, and the mounting plate is provided with a bending structure so that the bottom of the extension portion is higher than the mounting surface of the box door body.

[0014] Optionally, the door lock device further comprises:

[0015] a plurality of first limiting plates arranged on the box door body;

[0016] a plurality of second limiting plates arranged on the lock rod and corresponding to the first limiting plates respectively, the second limiting plates abutting against the first limiting plates when the lock rod rotates to the locking position, so as to lock the box door body.

[0017] Optionally, the door lock device further comprises:

[0018] a plurality of limiting seats arranged on the mounting plate to limit the lock rod, and the lock rod is arranged to be able to rotate in the limiting seat.

[0019] Optionally, the door lock device further comprises:

[0020] a limiting member arranged on the lock rod, the limiting member abutting against the mounting plate or the box body of the container when the lock rod rotates to a predetermined angle, so as to limit the rotation angle of the lock rod.

[0021] Optionally, the door lock device further comprises:

[0022] a lock head arranged at the end of the lock rod;

[0023] a lock seat arranged on the box body of the container, the lock head being able to be connected with the lock seat and rotate in the lock seat to achieve locking or unlocking.

[0024] Optionally, the door lock device further comprises:

[0025] a crank seat arranged on the box door body, the crank being able to be connected with the crank seat when the lock rod rotates to the locking position, and the crank seat limiting the crank.

[0026] Optionally, the door locking device further comprises:

[0027] A plurality of hinges are arranged on the second side of the door body of the container and are used to connect the container.

[0028] The second aspect of the utility model provides a kind of container, comprising: the door locking device for container of any one of the above technical solutions.

[0029] Optionally, the container further comprises:

[0030] Crossbeam, the crossbeam is arranged in the end of the container, and the second side of the door body is connected with the crossbeam by hinge;

[0031] Door sill beam, the door sill beam is arranged in the end of the container and is below the crossbeam, and lock seat is arranged on the door sill beam.

[0032] Optionally, the container further comprises:

[0033] Corner column, the corner column is arranged in the end of the container, and the second side of the door body is connected with the corner column by hinge;

[0034] Door lintel, the door lintel is arranged in the end of the container, and lock seat is arranged on the door lintel.

[0035] Door sill beam, the door sill beam is arranged in the end of the container, and lock seat is arranged on the door sill beam.

[0036] According to the door locking device for container and container of the utility model, the lock rod is installed by mounting plate, can adapt to the structure of conventional and special container, when conventional container door locking device cannot be installed, effectively meet the requirement of door body to door locking device, realize the safe transportation purpose of container for goods, the range of use is more extensive, and the structure is relatively simple, and the manufacturing cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0037] The following drawings of the utility model embodiment are used as a part of the utility model for understanding the utility model. The drawings of the utility model embodiment and its description are used to explain the principle of the utility model. In the drawings,

[0038] Figure 1 It is the perspective view of the container of a preferred embodiment in the prior art;

[0039] Figure 2 It is the right view of the container of a preferred embodiment in the prior art;

[0040] Figure 3A sectional view of the door lock device for the container according to a preferred embodiment of the present application;

[0041] Figure 4 A front view of the door lock device for the container according to a preferred embodiment of the present application;

[0042] Figure 5 A front view of the door lock device for the container according to a preferred embodiment of the present application;

[0043] Figure 6 A sectional view of the door lock device for the container according to a preferred embodiment of the present application, in which the lock rod is in the locking state and the container door body is in the closed state;

[0044] Figure 7 A sectional view of the door lock device for the container according to a preferred embodiment of the present application, in which the lock rod is in the unlocking state;

[0045] Figure 8 A sectional view of the door lock device for the container according to a preferred embodiment of the present application, in which the container door body is in the open state;

[0046] Figure 9 A sectional view of the door lock device for the container according to a preferred embodiment of the present application;

[0047] Figure 10 A front view of the door lock device for the container according to a preferred embodiment of the present application.

[0048] BRIEF DESCRIPTION OF THE DRAWINGS

[0049] 100: door lock device 101: cross beam

[0050] 102: hinge 103: door sealing rubber strip

[0051] 104: container door body 105: crank seat

[0052] 106: crank 107: lock rod

[0053] 108: door sill beam 109: mounting plate

[0054] 110: extension 112: lock head

[0055] 113: lock seat 114: limiting piece

[0056] 115: first limiting plate 116: second limiting plate

[0057] 117: mounting plate 200: container

[0058] 201: Top 202: Sidewall

[0059] 203: Base frame; 204: Carton door

[0060] 241: Case door body 242: Crank seat

[0061] 243: Locking lever 244: Crank

[0062] 245: Hinge 246: Corner post

[0063] 247: Threshold beam; 248: Door lintel beam Detailed Implementation

[0064] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0065] To fully understand this invention, a detailed description will be set forth in the following description. It should be understood that these embodiments are provided so that the disclosure of this invention is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. Obviously, the implementation of embodiments of this invention is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this invention are described in detail below; however, other embodiments may be available in addition to these detailed descriptions.

[0066] The ordinal numbers such as "first" and "second" used in this invention are merely identifiers and have no other meaning, such as a specific order. Furthermore, for example, the term "first component" does not imply the existence of "second component," and the term "second component" does not imply the existence of "first component."

[0067] It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer" and similar expressions used in this utility model are for illustrative purposes only and are not intended to be limiting.

[0068] like Figure 1 , Figure 2 As shown, in some embodiments, the container 200 typically includes a top 201, side walls 202, a base frame 203, etc. The front end of the container 200 is a closed end with an end plate, and the rear end is a door 204, which can be opened and closed.

[0069] The box door 204 comprises a box door body 241 and a door lock device for locking and unlocking the box door body 241. Corner columns 246 are arranged at four corners of the container 200, and the side of the box door body 104 is connected with the corner columns 246 through hinges 245. The door lock device comprises a lock rod 243, a crank 244, a crank seat 242 and the like. The lock rod 243 is arranged on the box door body 241, the crank 244 is arranged on the lock rod 243, and the crank seat 242 is arranged on the box door body 241. Lock heads are arranged at upper and lower ends of the lock rod 243, and a door header beam 248 and a door sill beam 247 are correspondingly provided with lock seats, the lock heads can be connected with the lock seats and rotate in the lock seats to realize locking or unlocking.

[0070] Some containers 200 cannot be locked by using the door lock device shown in the figure due to the particularity of the box structure, and instead use a bolt or some complex structure lock, which increases the production cost and assembly difficulty, and reduces the safety and aesthetics to different degrees, and cannot be effectively and widely applied.

[0071] The utility model discloses a door lock device for container, container.

[0072] Now, the exemplary embodiments according to the utility model will be described in more detail with reference to the drawings.

[0073] As Figure 3 , Figure 4 , Figure 5 shown, in the preferred embodiment, a door lock device 100 for container, comprising: box door body 104, mounting plate 109, lock rod 107 and crank 106;

[0074] The box door body 104 is arranged at the end of the container 200, which can be the rear end of the container 200 or the front end of the container 200, and the box door body 104 can also be arranged at the side of the container 200;

[0075] The mounting plate 109 is arranged on the box door body 104, and the height or length of the mounting plate 109 is close to the height or length of the box door body 104. The mounting plate 109 can be fixed on the outer surface of the box door body 104 by welding or bolt connection;

[0076] The lock rod 107 is arranged on the mounting plate 109 and rotatably connected with the mounting plate 109. The lock rod 107 can rotate relative to the mounting plate 109;

[0077] The crank 106 is arranged on the lock rod 107, and the crank 106 is a handle for controlling the opening and closing of the door lock device 100. The lock rod 107 can be rotated through the crank 106. The lock rod 107 is rotated to the locking position to lock the box door body 104, and the lock rod 107 is rotated to the unlocking position to unlock the box door body 104.

[0078] The crank 106 is hingedly connected with the lock bar 107, and the crank 106 can rotate relative to the lock bar 107 in the up-down direction and cannot rotate relative to the lock bar 107 in the left-right direction, and can drive the lock bar 107 to rotate in the left-right direction.

[0079] The door lock device in the embodiment can adapt to the structures of conventional and special containers, effectively meet the requirements of the container body on the door lock device when the conventional container door lock device cannot be installed, realize the safe transportation of the container for goods, and has a wide range of use, and has a simple structure and low manufacturing cost.

[0080] As shown in Figure 6 , the lock bar 107 in the figure is in the locked state, and the door body 104 is in the closed state. As shown in Figure 7 , the lock bar 107 in the figure is in the unlocked state, and the crank 106 drives the lock bar 107 to rotate in the left-right direction by an angle α, and converts the lock bar 107 from the locked state to the unlocked state. As shown in Figure 8 , the door body 104 in the figure is in the open state.

[0081] In one embodiment, as shown in Figure 4 , the door body 104 is vertically arranged, the door body 104 has a large area, and is usually arranged at the rear end or the side of the container 200. Opening the door body 104 can enter the interior of the container 200, and store large-volume articles in the interior of the container 200.

[0082] In one embodiment, as shown in Figure 5 , the door body 104 is horizontally arranged, the area of the door body 104 is small, and can be arranged at the rear end or the front end of the container 200. Opening the door body 104 can unload goods from the container 200, and is mainly solid granular or powdery goods, such as grain, feed, sandstone, etc.

[0083] In one embodiment, as shown in Figure 4 , Figure 5 , the first side of the mounting plate 109 is provided with a plurality of extension portions 110, the extension portion 110 exceeds the first side of the door body 104 in the width direction of the door body 104, the lock bar 107 is arranged on the extension portion 110 and is rotationally connected with the extension portion 110, and the lock bar 107 can rotate relative to the extension portion 110.

[0084] Unlike the prior art, the lock rod 107 is directly arranged on the box door body 104, and the lock rod 107 is arranged in a suspended manner on one side of the box door body 104 through the arrangement of the extension part 110, so that the locking position can be arranged on one side of the box door body 104, which is suitable for the structure of the special container 200 and meets the requirements of the box door body on the door lock device. The extension part 110 is integrally formed on the mounting plate 109, and can also be separately manufactured and then assembled by welding.

[0085] In one embodiment, as shown in Figure 3 The mounting plate 109 is arranged on the mounting surface of the box door body 104, and the mounting surface can be the outer surface of the box door body 104. The mounting plate 109 is provided with a bending structure, so that the bottom of the extension part 110 is higher than the mounting surface of the box door body 104.

[0086] By arranging the bending structure, when the box door body 104 is in a closed state, the extension part 110 can not be in contact with the adjacent container body, so as to avoid the obstruction of the extension part 110, which causes the box door body 104 to be not tightly closed.

[0087] In one embodiment, as shown in Figure 4 , Figure 5 The door lock device 100 further comprises:

[0088] A plurality of limiting seats 111 are arranged on the mounting plate 109 to limit the lock rod 107, and are specifically arranged on the extension part 110. The lock rod 107 is arranged in the limiting seat 111 and can rotate in the limiting seat 111. The limiting seat 111 limits the lock rod 107 from being separated from the mounting plate 109. The limiting seat 111 is approximately Ω-shaped or inverted U-shaped in cross section, and can be fixed to the mounting plate 109 by bolt connection or welding.

[0089] In one embodiment, as shown in Figure 6 , Figure 7 The door lock device 100 further comprises:

[0090] The limiting part 114 is arranged on the lock rod 107 and can be fixed to the lock rod 107 by welding or threaded connection. When the lock rod 107 rotates to a predetermined angle, the limiting part 114 abuts against the mounting plate 109 to limit the rotation angle of the lock rod 107. By arranging the limiting part 114, the rotation angle of the lock rod 107 can be prevented from being too large, so that the lock head 112 at the end of the lock rod 107 cannot be smoothly separated from the lock seat 113, causing the box door body 104 to be not smoothly opened.

[0091] In one embodiment, as shown in Figure 4 , Figure 5 The door lock device 100 further comprises:

[0092] A lock head 112 is arranged at an end of the lock rod 107, and the lock head 112 is arranged at both ends of the lock rod 107.

[0093] A lock seat 113 is arranged on the container body of the container 200, and the lock head 112 can be connected with the lock seat 113 and rotate in the lock seat 113 to achieve locking or unlocking. When the lock head 112 and the lock seat 113 are locked, the strength of the door of the container can be significantly increased.

[0094] As shown in Figure 4 , the lock seat 113 can be arranged on the top longitudinal beam and the bottom longitudinal beam of the container 200 and can be fixed by welding. As shown in Figure 5 , the lock seat 113 can be arranged on the rocker beam 108 of the container 200 and can be fixed by welding. The specific structure of the lock head 112 and the lock seat 113 can refer to the prior art and meet the design standards of the container.

[0095] In an embodiment, as shown in Figure 3 , Figure 4 , Figure 5 , the door lock device 100 further comprises:

[0096] A crank seat 105 is arranged on the door body 104, and the crank 106 can be connected with the crank seat 105 when the lock rod 107 rotates to the locking position, and the crank seat 105 limits the crank 106. During the transportation of the container 200, the crank seat 105 can prevent the crank 106 from shaking randomly to cause the lock rod 107 to rotate accidentally, so as to maintain the locking state of the lock rod 107 and the closed state of the door body 104. The crank seat 105 can also be locked to prevent the crank seat 105 from being opened. After unlocking, the crank 106 can be separated from the crank seat 105, thereby improving the safety.

[0097] In an embodiment, as shown in Figure 4 , Figure 5 , the door lock device 100 further comprises:

[0098] A plurality of hinges 102 are arranged on the second side of the door body 104 and are used to connect the container body of the container 200, and the hinge 102 supports the rotation of the door body 104.

[0099] As shown in Figure 4 , the hinge 102 can be arranged on the side wall of the container 200 and can be fixed by welding. As shown in Figure 5 , the lock seat 113 can be arranged on the cross beam 101 of the container 200 and can be fixed by welding. The specific structure of the hinge 102 can refer to the prior art.

[0100] In an embodiment, as shown in Figure 9 , Figure 10As shown, the mounting plate 109 is arranged on the box body of the container 200, and the mounting plate 109 is arranged on the rocker panel 108 of the container 200 in the figure, the area of the mounting plate 109 is small, and a plurality of mounting plates 109 are arranged on the rocker panel 108.

[0101] Unlike the prior art in which the lock rod 107 is directly arranged on the door body 104, by arranging the mounting plate 109 on the box body of the container 200, the lock rod 107 can be arranged on one side of the door body 104, so that the locking position can be arranged on one side of the door body 104, which is suitable for the structure of the special container 200 and meets the requirements of the box body on the door lock device.

[0102] In one embodiment, as shown in Figure 9 , Figure 10 The door lock device 100 further comprises:

[0103] A plurality of first limiting plates 115 are arranged on the door body 104 and can be fixed by welding;

[0104] A plurality of second limiting plates 116 are arranged on the lock rod 107 and correspond to the first limiting plates 115 respectively, and can be fixed by welding, and the second limiting plates 116 abut against the first limiting plates 115 when the lock rod 107 is rotated to the locking position, thereby locking the door body 104.

[0105] The first limiting plate 115 can also be provided with a bending structure, so that the bottom of the part of the plate body extending outward of the first limiting plate 115 is higher than the mounting surface of the door body 104. By arranging the bending structure, the first limiting plate 115 can not contact the adjacent container box when the door body 104 is in the closed state, thereby avoiding that the door body 104 is not closed tightly due to the obstruction of the first limiting plate 115.

[0106] In one embodiment, as shown in Figure 9 , Figure 10 The door lock device 100 further comprises:

[0107] A plurality of limiting seats 111 are arranged on the mounting plate 109 to limit the lock rod 107, and the lock rod 107 is arranged in the limiting seat 111 and can rotate in the limiting seat 111. The lock rod 107 cannot be separated from the mounting plate 109 due to the limiting action of the limiting seat 111. The limiting seat 111 is approximately Ω-shaped or inverted U-shaped in cross section, and can be fixed by bolt connection or welding with the mounting plate 109.

[0108] The embodiment of the utility model further provides a container 200, which comprises the door lock device 100 for the container 200 in any one of the above embodiments.

[0109] In one embodiment, as shown in Figure 5 、 Figure 6 、 Figure 9 、 Figure 10 The container 200 further comprises:

[0110] The cross beam 101 is arranged at the end of the container 200, and the second side of the container door body 104 is connected with the cross beam 101 through the hinge 102.

[0111] The door sill beam 108 is arranged at the end of the container 200 and below the cross beam 101, and the lock seat 113 is arranged on the door sill beam 108.

[0112] In one embodiment, the container 200 further comprises:

[0113] The corner column is arranged at the end of the container 200 and at the corner of the container 200, and the second side of the container door body 104 is connected with the corner column through the hinge 102.

[0114] The door header beam is arranged at the end of the container 200 and at the top of the container 200, and the lock seat 113 is arranged on the door header beam.

[0115] The door sill beam 108 is arranged at the end of the container 200 and at the bottom frame of the container 200, and the lock seat 113 is arranged on the door sill beam 108.

[0116] Other structures of the container 200 can refer to the prior art and meet the design standards of the container, which will not be described in detail here.

[0117] The door lock device for the container and the container according to the utility model can adapt to the structures of conventional and special containers, effectively meet the requirements of the container body on the door lock device when the conventional container door lock device cannot be installed, realize the safe transportation of the container for goods, have a wide range of use, and have a simple structure and low manufacturing cost.

[0118] The processes and steps in all the preferred embodiments described above are only examples. Unless an adverse effect occurs, various processing operations can be performed in different orders from the order of the above processes. The order of the steps of the above processes can also be increased, combined or deleted according to actual needs.

[0119] As used in understanding the present application, the term "comprising" and its derivatives, as used herein, are intended to be open-ended terms that specify the presence of the stated features, elements, components, groups, integers, and / or steps, but do not exclude the presence of other unstated features, elements, components, groups, integers and / or steps. The foregoing also applies to like terms, for example, "comprise," "comprises," "comprising," "including," "includes," "include," "contain," "contains," "containing," "have," "has," "having," "maintain," "maintains," "maintaining," "carry," "carries," "carrying," "hold," "holds," "holding," "create," "creates," "creating," "generate," "generates," "generating," "produce," "produces," "producing," and "perform," "performs," "performing" and the like.

[0120] As used herein, the terms "attached" or "attach" include a configuration in which an element is directly secured to another element by affixing the element to the other element, a configuration in which an element is indirectly secured to another element by affixing the element to an intermediate member that is in turn affixed to the other element, and a configuration in which one element is integral with another element, i.e., one element is essentially a portion of the other. The definition also applies to words of similar import, for example, "connect," "couple," "join," "adhere," "secure," and derivatives thereof. Finally, as used herein, degree terms such as "substantially," "approximately" and "about" mean an acceptable quantity of deviation from the indicated value so as to not significantly change the end result.

[0121] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The features described herein in one embodiment can be applied to another embodiment, mutatis mutandis, unless the features are not applicable or are otherwise stated.

[0122] The present application has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and illustration, and are not intended to limit the present application to the described embodiments. Furthermore, those skilled in the art can understand that the present application is not limited to the above embodiments, and that more various modifications and changes can be made according to the teachings of the present application, and these modifications and changes all fall within the scope of the present application claimed.

Claims

1. A door locking device for a container, characterized in that, The door lock device for a container comprises: a door body arranged on an end or side of a container; a mounting plate arranged on the door body or a container body; a lock rod arranged on the mounting plate and rotatably connected with the mounting plate; a crank arranged on the lock rod, by which the lock rod can be rotated, the lock rod is locked when rotated to a locking position, and the door body is unlocked when the lock rod is rotated to an unlocking position.

2. The door lock apparatus for a container according to claim 1, characterized by The door body is arranged vertically or horizontally.

3. The door lock apparatus for a container according to claim 1, characterized by A first side of the mounting plate is provided with a plurality of extension portions, the extension portions exceed the first side of the door body along a width direction of the door body, the lock rod is arranged on the extension portions and rotatably connected with the extension portions.

4. The door lock apparatus for a container according to claim 3, characterized by The mounting plate is arranged on a mounting surface of the door body, and the mounting plate is provided with a bending structure so that the bottom of the extension portion is higher than the mounting surface of the door body.

5. The door lock apparatus for a container according to claim 1, characterized by The door lock device further comprises: a plurality of first limiting plates arranged on the door body; a plurality of second limiting plates arranged on the lock rod and corresponding to the first limiting plates respectively, the second limiting plates abut against the first limiting plates when the lock rod is rotated to the locking position, and the door body is locked.

6. The door lock apparatus for a container according to claim 1, characterized by The door lock device further comprises: a plurality of limiting seats arranged on the mounting plate to limit the lock rod, and the lock rod is arranged in the limiting seat and can be rotated in the limiting seat.

7. The door lock apparatus for a container according to claim 1, characterized by The door lock device further comprises: a limiting member arranged on the lock rod, the limiting member abuts against the mounting plate or the container body when the lock rod is rotated to a predetermined angle, and the rotation angle of the lock rod is limited.

8. The door lock apparatus for a container according to claim 1, characterized by The door lock device further comprises: a lock head arranged on an end of the lock rod; a lock seat arranged on the container body, the lock head can be connected with the lock seat and rotated in the lock seat to achieve locking or unlocking.

9. The door lock apparatus for a container according to claim 1, characterized by The door lock device further comprises: a crank seat arranged on the door body, the crank can be connected with the crank seat when the lock rod is rotated to the locking position, and the crank seat limits the crank.

10. A container characterized by The door lock device for a container comprises: the door lock device for a container according to any one of claims 1-9.

11. The container of claim 10, wherein, The door lock device further comprises: a cross beam arranged on an end of the container, a second side of the door body is connected with the cross beam through a hinge; a door sill beam arranged on the end of the container and below the cross beam, and the door sill beam is provided with a lock seat.

12. The container of claim 10, wherein, The door lock device further comprises: a corner column arranged on an end of the container, a second side of the door body is connected with the corner column through a hinge; a door lintel beam arranged on the end of the container, and the door lintel beam is provided with a lock seat; a door sill beam arranged on the end of the container, and the door sill beam is provided with a lock seat.