Quick locking device for containers

The hydraulically driven fast locking device and sensor monitoring solve the problem of container fixing relying on manual operation, achieving efficient and safe monitoring and operation of the locking status, and is suitable for various transportation environments.

CN224563285UActive Publication Date: 2026-07-28HUBEI ZHONGYU ENVIRONMENTAL EQUIP CO LTD
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Patent Information

Application Number
CN202521879655.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-02
Publication Date
2026-07-28
Estimated Expiration
2035-09-02

AI Technical Summary

Technical Problem

Existing methods of securing containers rely on manual operation, which is inefficient, poses safety hazards, and lacks reliability in harsh environments.

Method used

The device employs a hydraulically driven quick-locking system, combined with sensors to monitor the locking status in real time, enabling remote one-button operation and status feedback. It is designed with a modular structure to adapt to harsh environments.

Benefits of technology

It improves operational efficiency and safety, reduces manual labor intensity, ensures reliable locking status, and is suitable for various transportation environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a quick-locking device for containers, including a mounting groove. Side sealing plates are fixedly installed at both ends of the mounting groove. A double-rod hydraulic cylinder is fixedly installed within the mounting groove. A pull rod is hinged to each end of the double-rod hydraulic cylinder. The end of the pull rod away from the double-rod hydraulic cylinder is hinged to an ear plate. The ear plate is fixedly connected to a rotating shaft. The rotating shaft is rotatably mounted on a base, which is fixedly installed within the mounting groove. A lock cylinder is fixedly installed at the top of the rotating shaft. This utility model allows the driver or operator to remotely operate all locking mechanisms with a single button from inside the cab or control center, eliminating the need for manual on-site operation and greatly improving efficiency and safety.
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Description

Technical Field

[0001] This utility model relates to the field of container technology, and in particular to a quick locking device for containers. Background Technology

[0002] Containers need to be quickly and reliably secured to transport vehicles such as skeleton trucks or container yard platforms to prevent displacement and overturning during transport or storage, ensuring transport safety. Currently, the most common securing method is manual rotary locks. Operators need to manually rotate the lock head to engage or disengage it from the corner locking holes of the container. This method has the following disadvantages: it relies entirely on manual operation, is time-consuming and labor-intensive, and inefficient; operators need to frequently move around the vehicle or container, posing safety hazards; and the reliability of the locking status is difficult to visually determine.

[0003] Especially when frequent loading and unloading or batch operations are required, the labor intensity of workers is very high.

[0004] The container intelligent locking device disclosed in patent publication number CN221699836U relies on a stepper motor to drive a rectangular block on a rotating shaft to lock the container. This requires four identical devices at the four corners of the container, resulting in high costs. Furthermore, the electric mechanism is prone to damage under heavy loads and vibrations, leading to insufficient reliability. Summary of the Invention

[0005] To solve the above problems, the technical solution of this utility model is: a quick locking device for containers, including a mounting groove, side sealing plates fixedly installed at both ends of the mounting groove, a double-rod hydraulic cylinder fixedly installed in the mounting groove, a pull rod hinged to both ends of the double-rod hydraulic cylinder, the end of the pull rod away from the double-rod hydraulic cylinder being hinged to an ear plate, the ear plate being fixedly connected to a rotating shaft, the rotating shaft being rotatably mounted on a base, the base being fixedly installed in the mounting groove, and a lock cylinder being fixedly installed at the top end of the rotating shaft.

[0006] To facilitate control of the locking device, a sensor is also fixedly installed on the base.

[0007] To better protect the shaft, a base is fitted onto the shaft, and the base is fixedly connected to the inner surface of the mounting groove via a fixing plate.

[0008] To prevent damage to the lock cylinder, a rectangular block is provided at the top of the base, and the cross-section of the rectangular block is the same as that of the lock cylinder.

[0009] The base and rectangular block are positioned between the ear plate and the lock cylinder, and the pivot can rotate within the base. The top of the pivot passes through the rectangular block and is fixedly connected to the lock cylinder.

[0010] The beneficial effects of this utility model are:

[0011] 1. Drivers or operators can remotely operate all locking mechanisms with one click from the cab or control center, eliminating the need for on-site manual operation and greatly improving efficiency and safety.

[0012] 2. The system uses sensors to provide real-time feedback on the locking status, preventing safety accidents caused by misjudgments. The system can also integrate fault diagnosis and alarm functions.

[0013] 3. The hydraulic system is resistant to impact and vibration, making it suitable for harsh industrial and mining environments. Furthermore, the entire mechanism can be designed in a modular form, facilitating installation, layout, and maintenance on vehicles or platforms. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] In the diagram: 1. Mounting slot; 2. Double-rod hydraulic cylinder; 3. Pull rod; 4. Sensor; 5. Rectangular block; 6. Lock cylinder; 7. Base; 8. Ear plate; 9. Fixing plate; 10. Side sealing plate; 11. Base. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] exist Figure 1 A quick-locking device for a container includes a mounting groove 1, with side sealing plates 10 fixedly installed at both ends of the mounting groove 1. A double-rod hydraulic cylinder 2 is fixedly installed in the mounting groove 1, with pull rods 3 hinged to both ends of the double-rod hydraulic cylinder 2. The end of the pull rod 3 away from the double-rod hydraulic cylinder 2 is hinged to an ear plate 8. The ear plate 8 is fixedly connected to a rotating shaft. The rotating shaft is rotatably mounted on a base 7, which is fixedly installed in the mounting groove 1. A lock cylinder 6 is fixedly installed at the top of the rotating shaft.

[0019] Furthermore, a sensor 4 is also fixedly installed on the base 7.

[0020] Furthermore, a base 11 is sleeved on the rotating shaft, and the base 11 is fixedly connected to the inner surface of the mounting groove 1 through a fixing plate 9.

[0021] Furthermore, a rectangular block 5 is provided at the top of the base 11, and the cross-section of the rectangular block 5 is the same as the cross-section of the lock cylinder 6.

[0022] Sensor 4 and double-rod cylinder 2 can be connected to the control system to make them easier to operate.

[0023] The bottom of the container has a notch that matches the lock cylinder, making it easy for the lock cylinder to be inserted into the container.

[0024] During operation, after the container is placed on the skeleton truck or yard platform, the double-rod hydraulic cylinder 2 is activated. The piston end of the double-rod cylinder 2 retracts, driving the rotating shaft through the lug plate 8, which in turn drives the lock cylinder 6 to rotate. When the lock cylinder 6 is perpendicular to the rectangular block 5, the lock cylinder 6 locks the container. During reset, the double-rod hydraulic cylinder 2 extends, and the lock cylinder 6 overlaps with the rectangular block 5; at this time, the container is not locked.

[0025] When the container comes into contact with sensor 4, the double-rod hydraulic cylinder 2 retracts to lock the container, making the locking operation more convenient.

[0026] In the description of this utility model, it should be understood that the terms "bottom", "one end", "top", "middle", "other end", "upper", "side", "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model 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 utility model.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-locking device for a container, comprising a mounting groove (1), wherein side sealing plates (10) are fixedly mounted at both ends of the mounting groove (1), characterized in that: A double-rod hydraulic cylinder (2) is fixedly installed in the mounting groove (1). A pull rod (3) is hinged to both ends of the double-rod hydraulic cylinder (2). The end of the pull rod (3) away from the double-rod hydraulic cylinder (2) is hinged to the ear plate (8). The ear plate (8) is fixedly connected to the rotating shaft. The rotating shaft is rotatably installed on the base (7). The base (7) is fixedly installed in the mounting groove (1). A lock cylinder (6) is fixedly installed at the top of the rotating shaft. A sensor (4) is also fixedly installed on the base (7). When the container comes into contact with the sensor (4), the double-rod hydraulic cylinder (2) retracts and locks the container.

2. The quick-locking device for a container according to claim 1, characterized in that: A base (11) is fitted on the rotating shaft, and the base (11) is fixedly connected to the inner surface of the mounting groove (1) through a fixing plate (9).

3. A quick-locking device for a container according to claim 2, characterized in that: The base (11) has a rectangular block (5) at its top, and the cross section of the rectangular block (5) is the same as that of the lock cylinder (6).