Container hinge with locking structure

By introducing a locking structure into the container hinges and using a combination of locking blocks, stops, and levers, the problem of the container doors being unable to be fixed was solved, thus improving the stability of the hinges.

CN223990433UActive Publication Date: 2026-03-13ZHANGJIAGANG SHENGHONG METAL PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The existing container hinges lack a locking structure, which means that the container doors cannot be effectively secured after being opened, affecting the stability of use.

Method used

A container hinge with a locking structure was designed. By combining locking blocks, stop blocks, locking rods and limiting blocks, the first hinge plate and the second hinge plate are locked to prevent the container door from swinging back and forth.

Benefits of technology

It effectively prevents the cabinet door from swinging back and forth during use, thus improving the stability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of containers, and discloses a container hinge with a locking structure, which comprises a first hinge plate, a second hinge plate is arranged on one side of the first hinge plate, a clamping block, a stop block and a clamping rod are slidably connected in the first hinge plate, and a limiting block is fixedly connected to one side of the first hinge plate. A through groove penetrates through the upper end of the limiting block, a spring and a round rod are fixedly connected to the upper end of the clamping block, a baffle disc is fixedly connected to the upper end of the round rod, a through hole penetrates through the upper end of the baffle block, and a chassis is fixedly connected to the lower end of the clamping rod; the first hinge plate and the second hinge plate can be locked, the box door is prevented from swinging back and forth during use, and the clamping block can be blocked in the vertical groove through the stop block so as to prevent the clamping block from accidentally falling into the notch to affect normal opening and closing between the first hinge plate and the second hinge plate; and through clamping connection of the base plate, the first positioning groove and the second positioning groove, the stop block can be positioned, and the stop block is prevented from accidentally sliding in the first annular groove.
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Description

Technical Field

[0001] This application relates to the field of container technology, and more specifically, to a container hinge with a locking structure. Background Technology

[0002] Containers are important logistics tools. To facilitate the loading and unloading of goods, containers are usually equipped with doors at the rear end. The doors are connected to the corner posts of the rear frame of the container by hinges so that the doors can be opened and closed.

[0003] For example, Chinese patent literature discloses a container door hinge and a container (application number: CN202220380854.7). The hinge pin and support sleeve assembly engage with the pin sleeve via rolling friction, reducing friction and wear while improving the flexibility of the door's rotation. However, the lack of a locking structure on the hinge plate means the door cannot be effectively secured after opening. This causes the door to swing back and forth due to its own weight and the flexibility of the hinge plate, affecting normal user operation and significantly reducing the device's stability.

[0004] To address the aforementioned problems, this application provides a container hinge with a locking structure. Utility Model Content

[0005] The container hinge with a locking structure provided in this application adopts the following technical solution:

[0006] A container hinge with a locking structure includes a first hinge plate, a second hinge plate on one side of the first hinge plate, a locking block, a stop block, and a locking rod slidably connected inside the first hinge plate, an auxiliary block fixedly connected to one side of the second hinge plate, and rotating rods fixedly connected to both sides of the auxiliary block. A first arc-shaped block and a second arc-shaped block are fixedly connected to the outer surface of the rotating rod, and the gap between the first arc-shaped block and the second arc-shaped block is a notch. A limiting block is fixedly connected to one side of the first hinge plate, and a through slot is formed at the upper end of the limiting block. The limiting block is located at both ends of the auxiliary block, and the rotating rod passes through the interior of the through slot. A spring and a round rod are fixedly connected to the upper end of the locking block, a stop plate is fixedly connected to the upper end of the round rod, a through hole is formed at the upper end of the stop block, the locking rod passes through the interior of the through hole, and a base plate is fixedly connected to the lower end of the locking rod.

[0007] Furthermore, the inner wall of the through groove is provided with a vertical groove, a first annular groove and a second annular groove, the upper end of the limiting block is provided with a circular groove and a sliding groove, and the inner wall of the first annular groove is provided with a first positioning groove and a second positioning groove.

[0008] Through the above technical solution, the first positioning groove is a groove that blocks the card block in the vertical groove, and the second positioning groove is a groove that opens the vertical groove so that the card block can slide along the vertical groove into the missing groove at the second annular groove.

[0009] Furthermore, the circular groove is connected to the vertical groove, the first annular groove is connected to the vertical groove, the second annular groove is also connected to the vertical groove, the sliding groove is connected to the first annular groove, and the second annular groove is rotatably connected to the first arc-shaped block and the second arc-shaped block.

[0010] The above technical solution allows the slide groove and the first annular groove to be in a connected state, so as to facilitate the movement of the stop block in the first annular groove from the outside.

[0011] Furthermore, the locking block is slidably connected to the vertical groove, the round rod passes through the interior of the round groove, and the upper end of the spring is fixedly connected to the top wall of the vertical groove.

[0012] With the above technical solution, the circular groove allows the circular rod to pass freely, and the spring is used to push the locking block to move down along the vertical groove.

[0013] Furthermore, the stop block is rotatably connected to the first annular groove, the through hole is connected to the first positioning groove, and the through hole is also connected to the second positioning groove.

[0014] With the above technical solution, when the stop block moves to the position of the vertical groove, it can block the block in the vertical groove and prevent the block from continuing to slide down the vertical groove.

[0015] Furthermore, the locking rod passes through the interior of the sliding groove, the chassis is slidably engaged with the first positioning groove, and the chassis is also slidably engaged with the second positioning groove.

[0016] Through the above technical solution, the engagement of the chassis with the first positioning groove and the second positioning groove is used to limit the stop block and prevent the stop block from continuously sliding along the first annular groove.

[0017] In summary, this application includes the following beneficial technical effects:

[0018] This application can lock the first hinge plate and the second hinge plate to prevent the door from swinging back and forth during use. The stop block can block the locking block in the vertical groove to prevent the locking block from accidentally falling into the groove and affecting the normal opening and closing between the first hinge plate and the second hinge plate. The stop block can be positioned by the engagement of the chassis with the first positioning groove and the second positioning groove to prevent the stop block from accidentally sliding in the first ring groove. The sliding groove facilitates the movement of the stop block inside the first ring groove from the outside. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this application;

[0020] Figure 2 This is a schematic diagram of the second hinge plate structure of this application;

[0021] Figure 3 This is a schematic diagram of the first hinge plate structure of this application;

[0022] Figure 4 This is a schematic diagram of the limiting block structure of this application;

[0023] Figure 5 This is a schematic diagram of the card block structure in this application;

[0024] Figure 6 This is a schematic diagram of the stop and locking rod structure of this application.

[0025] Explanation of the labels in the diagram:

[0026] 1. First hinge plate; 11. Limiting block; 12. Through groove; 121. Vertical groove; 122. First annular groove; 1221. First positioning groove; 1222. Second positioning groove; 123. Second annular groove; 124. Sliding groove; 125. Circular groove; 2. Second hinge plate; 21. Auxiliary block; 22. Rotating rod; 221. First arc-shaped block; 222. Second arc-shaped block; 223. Notched groove; 3. Locking block; 31. Spring; 32. Round rod; 321. Stop plate; 4. Stop block; 41. Through hole; 5. Locking rod; 51. Chassis. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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 this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] Example:

[0031] This application discloses a container hinge with a locking structure. Please refer to [link / reference]. Figures 1-6 The system includes a first hinge plate 1, a second hinge plate 2 on one side of the first hinge plate 1, a locking block 3, a stop block 4, and a locking rod 5 slidably connected inside the first hinge plate 1, an auxiliary block 21 fixedly connected to one side of the second hinge plate 2, and rotating rods 22 fixedly connected to both sides of the auxiliary block 21. A first arc-shaped block 221 and a second arc-shaped block 222 are fixedly connected to the outer surface of the rotating rods 22, and the gap between the first arc-shaped block 221 and the second arc-shaped block 222 is a notch 223. A limiting block 11 is fixedly connected to one side of the first hinge plate 1. A through groove 12 is provided through the upper end of the limiting block 11. The limiting block 11 is located at both ends of the auxiliary block 21. The rotating rod 22 passes through the inside of the through groove 12. A spring 31 and a round rod 32 are fixedly connected to the upper end of the locking block 3. A baffle 321 is fixedly connected to the upper end of the round rod 32. A through hole 41 is provided through the upper end of the blocking block 4. The locking rod 5 passes through the inside of the through hole 41. A base plate 51 is fixedly connected to the lower end of the locking rod 5.

[0032] The inner wall of the through groove 12 is provided with a vertical groove 121, a first annular groove 122 and a second annular groove 123. The upper end of the limiting block 11 is provided with a circular groove 125 and a sliding groove 124. The inner wall of the first annular groove 122 is provided with a first positioning groove 1221 and a second positioning groove 1222.

[0033] The first positioning groove 1221 is a groove that blocks the locking block 3 in the vertical groove 121, and the second positioning groove 1222 is a groove that opens the vertical groove 121 so that the locking block 3 can slide along the vertical groove 121 into the notch 223 at the second annular groove 123.

[0034] The circular groove 125 is connected to the vertical groove 121, the first annular groove 122 is connected to the vertical groove 121, the second annular groove 123 is also connected to the vertical groove 121, the sliding groove 124 is connected to the first annular groove 122, and the second annular groove 123 is rotatably connected to the first arc block 221 and the second arc block 222.

[0035] The slide 124 and the first annular groove 122 can be in a connected state to facilitate the movement of the stop 4 in the position of the first annular groove 122 from the outside.

[0036] The locking block 3 is slidably connected to the vertical groove 121, the round rod 32 passes through the inside of the round groove 125, and the upper end of the spring 31 is fixedly connected to the top wall of the vertical groove 121.

[0037] The circular groove 125 facilitates the free passage of the circular rod 32, and the spring 31 is used to push the locking block 3 down along the vertical groove 121.

[0038] The stop block 4 is rotatably connected to the first annular groove 122, the through hole 41 is connected to the first positioning groove 1221, and the through hole 41 is also connected to the second positioning groove 1222.

[0039] When the stop block 4 moves to the position of the vertical groove 121, it can block the locking block 3 in the vertical groove 121 to prevent the locking block 3 from continuing to slide down the vertical groove 121.

[0040] The lever 5 passes through the interior of the slide groove 124, and the chassis 51 is slidably engaged with the first positioning groove 1221. The chassis 51 is also slidably engaged with the second positioning groove 1222.

[0041] The engagement of the chassis 51 with the first positioning groove 1221 and the second positioning groove 1222 is used to limit the stop block 4 and prevent the stop block 4 from continuously sliding along the first annular groove 122.

[0042] The implementation principle of this embodiment is as follows: When it is necessary to lock the first hinge plate 1 and the second hinge plate 2, firstly pull the locking rod 5 to move it upward along the through hole 41, and let its base 51 separate from the first positioning groove 1221 and enter the lower end of the stop block 4. Then, the locking rod 5 can be rotated to rotate along the sliding groove 124 until the locking rod 5 is moved to the position above the second positioning groove 1222. Then, the locking rod 5 can be pressed to let its base 51 enter the second positioning groove 1222. At this time, the stop block 4 is fixed under the mutual cooperation of the second positioning groove 1222 and the base 51. When the base 51 is engaged with the first positioning groove 1221, the stop block 4 is located at the connection between the vertical groove 121 and the first annular groove 122. When the base 51 is engaged with the second positioning groove 1222, the stop block 4 is located in the first annular groove 122 away from the vertical groove 121, thereby causing the block block 4 to disappear from blocking the locking block 3 in the vertical groove 121.

[0043] As the stop block 4 moves, the compressive force of the locking block 3 on the spring 31 disappears, and the spring 31 will push the locking block 3 to move down along the vertical groove 121. The locking block 3 will simultaneously pull the round rod 32 down until the locking block 3 is moved down to the notch 223 in the second annular groove 123. At this time, under the action of the locking block 3, the first arc block 221 and the second arc block 222 will be prevented from rotating along the second annular groove 123 again, that is, the rotation between the first hinge plate 1 and the second hinge plate 2 will be prevented, thereby completing the locking between the first hinge plate 1 and the second hinge plate 2.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A container hinge with a deadlocking structure, comprising a first hinge plate (1), characterized in that: One side of the first hinge plate (1) is provided with the second hinge plate (2), the inside of the first hinge plate (1) is slidably connected with the clamping block (3), the stop block (4) and the clamping rod (5), one side of the second hinge plate (2) is fixedly connected with the auxiliary block (21), both sides of the auxiliary block (21) are fixedly connected with the rotating rod (22), the outer surface of the rotating rod (22) is fixedly connected with the first arc block (221) and the second arc block (222), the gap between the first arc block (221) and the second arc block (222) is the slot (223), one side of the first hinge plate (1) is fixedly connected with the limiting block (11), the upper end of the limiting block (11) is penetrated through the slot (12), the limiting block (11) is located at both ends of the auxiliary block (21), the rotating rod (22) penetrates through the inside of the slot (12), the upper end of the clamping block (3) is fixedly connected with the spring (31) and the circular rod (32), the upper end of the circular rod (32) is fixedly connected with the baffle disc (321), the upper end of the stop block (4) is penetrated through the perforation (41), the clamping rod (5) penetrates through the inside of the perforation (41), and the lower end of the clamping rod (5) is fixedly connected with the bottom disc (51).

2. A container hinge with a lock structure according to claim 1, characterized in that: The inner wall of the slot (12) is provided with a vertical groove (121), a first ring groove (122) and a second ring groove (123), and the upper end of the limiting block (11) is provided with a circular groove (125) and a sliding groove (124).

3. A container hinge with a lock down feature according to claim 2, wherein: The circular groove (125) is communicated with the vertical groove (121), the first ring groove (122) is communicated with the vertical groove (121), the second ring groove (123) is also communicated with the vertical groove (121), the sliding groove (124) is communicated with the first ring groove (122), and the second ring groove (123) is rotatably connected with the first arc block (221) and the second arc block (222).

4. A container hinge with a lock structure according to claim 2, characterized in that: The clamping block (3) is slidably connected with the vertical groove (121), the circular rod (32) penetrates through the inside of the circular groove (125), and the upper end of the spring (31) is fixedly connected with the top wall of the vertical groove (121).

5. A container hinge with a lock structure according to claim 3, characterized in that: The stop block (4) is rotatably connected with the first ring groove (122), the perforation (41) is communicated with the first positioning groove (1221), and the perforation (41) is also communicated with the second positioning groove (1222).

6. A container hinge with a lock structure according to claim 3, characterized in that: The clamping rod (5) penetrates through the inside of the sliding groove (124), the bottom disc (51) is slidably and clampingly connected with the first positioning groove (1221), and the bottom disc (51) is also slidably and clampingly connected with the second positioning groove (1222).

Citation Information

Patent Citations

  • Container door hinge and container

    CN216888298U