A container security locking device
The container safety locking device utilizes a linkage bevel gear and threaded rod structure to solve the problem of insecure container door locking, achieving stable locking and sealing, and is suitable for the safety protection of goods during container transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HANIL PRECISION IND CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-23
AI Technical Summary
Existing container safety locking devices are not convenient for locking or opening container doors on both sides simultaneously, resulting in insecure locking of container doors, which may cause wobbling and gaps, affecting the tightness of the lock.
A container safety locking device was designed, which achieves dual locking and positioning of the container door through a linkage of bevel gears, threaded rods and spring structure. The locking position can be adjusted according to the amount of cargo to prevent cargo from tipping over and squeezing the container door.
It achieves stable locking of container doors, avoiding problems of insecure locking caused by cargo tipping and squeezing, and improving safety and sealing during transportation.
Smart Images

Figure CN224393559U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of container security locking technology, specifically a container security locking device. Background Technology
[0002] Locking can effectively prevent theft of goods. During transportation, if the container is not locked, the goods may be stolen by others. Locking can also ensure the integrity of the goods during transportation. Since there are many kinds of goods in the container, some of them are relatively fragile and easily squeezed or bumped. If the container is not locked, the goods may be damaged. There are many kinds of container security locking devices on the market.
[0003] However, conventional container safety locking devices are not convenient for simultaneously locking or opening container doors on both sides. Therefore, when it is necessary to open or close the container, it may be necessary to do so one by one. It is not convenient to position the container according to the quantity of goods inside. As a result, if there are many goods inside the container and it is accidentally tipped over, the goods may squeeze the container door panels from the inside, resulting in the container door not being locked securely. It is also not convenient to position the container door externally. During container transportation, bumps may cause the container door to shake and create gaps, affecting the tightness of the container lock. Therefore, we propose a container safety locking device to solve the problems mentioned above. Summary of the Invention
[0004] The purpose of this utility model is to provide a container safety locking device to solve the problems mentioned in the background art. Currently, conventional container safety locking devices are not convenient for simultaneously locking or opening container doors on both sides. Therefore, when it is necessary to open or close the container, it may be necessary to do so one by one. It is not convenient to position the container according to the quantity of goods inside. As a result, when there are many goods inside the container, if it is accidentally tipped over, the goods may squeeze the container door panel from the inside, resulting in the container door not being locked securely. It is also not convenient to position the container door externally. During container transportation, bumps may cause the container door to shake, resulting in gaps and affecting the tightness of the container lock.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a container safety locking device, comprising:
[0006] The front end of the door body is tightly fitted with a top plate;
[0007] Also includes:
[0008] A linkage bevel gear is provided with a door body at its rear end, and a first threaded rod is fixedly connected to the upper end of the linkage bevel gear, and a movable frame is threadedly connected to the outer side of the first threaded rod.
[0009] The top plate has a connecting bevel gear on its lower front end and a positioning structure on its outer side to prevent accidental opening. The positioning structure includes a second threaded rod, the top plate, and the door body. The door body is tightly fitted to the outer rear end of the top plate, and the second threaded rod is rotatably connected to the inner front end of the top plate. A first spring is fixedly connected to the outer front end of the top plate.
[0010] The lower end of the top plate is provided with a locking rod for double locking.
[0011] Preferably, the outer right end of the linkage bevel gear is meshed with a main bevel gear, and the right end of the main bevel gear is fixedly connected to a throttle handle, and the outer right end of the main bevel gear is rotatably connected to the front right end of the container body.
[0012] Preferably, the upper outer side of the first threaded rod is rotatably connected to the inside of the right end of the container body, the inside of the left end of the movable frame is slidably connected to the outside of the fixed frame, and the rear end of the fixed frame is fixedly connected to the front side of the left end of the container body.
[0013] Preferably, the movable frame is symmetrically arranged on the outer sides of the upper and lower ends of the first threaded rod, and the threads arranged on the outer side of the first threaded rod are arranged in opposite directions.
[0014] Preferably, the outer side of the door body is rotatably connected to the inside of the container body, and the door body is symmetrically arranged on the inner front end of the container body, and the outer front end of the second threaded rod is threadedly connected to the inside of the movable frame.
[0015] Preferably, the lower end of the insertion rod is rotatably connected to a movable plate, and the lower end of the insertion rod is slidably connected to the outside of the fixed column. The upper end of the movable plate is fixedly connected to a second spring. The outer rear end of the movable plate is slidably connected to the front side of the lower end of the container body. The upper end of the second spring is fixedly connected to the outer side of the lower end of the container body. The outer side of the fixed column is fixedly connected to the front side of the lower end of the container body.
[0016] Preferably, the upper inner side of the insertion rod is connected to a fixing frame, and the upper outer side of the fixing frame is connected to a pin, and the rear end of the pin is fixedly connected to the door body.
[0017] Compared with the prior art, the beneficial effects of this utility model are: the container safety locking device can adjust the positioning position according to the stacking method of the goods inside, prevent the goods from tipping over, squeeze the outside of the container to avoid the container door being continuously squeezed after the internal goods tip over, which would cause the container door to be unstable in the locking position. It can lock at the same time and is more convenient to use.
[0018] 1. It is equipped with a throttle, a main bevel gear and a connecting bevel gear. By rotating the throttle, the main bevel gear fixedly connected to the left end of the throttle rotates simultaneously, and drives the connecting bevel gear meshed with the outer side of the upper end of the main bevel gear to rotate simultaneously. This causes the first threaded rod fixedly connected to the upper end of the connecting bevel gear to rotate continuously. It can achieve indirect rotation through the meshing of the bevel gears, avoiding the problem of slow rotation speed when rotating directly.
[0019] 2. It is equipped with a first threaded rod, a movable frame and a fixed frame. The threads on the outer side of the first threaded rod are arranged in opposite directions. When the first threaded rod rotates, the two movable frames that are threaded to the two ends of the outer side of the first threaded rod rotate in different directions at the same time. At the same time, the left end of the movable frame slides on the outside of the fixed frame, which can adjust the positioning position according to the quantity of goods in the container.
[0020] 3. Equipped with a second threaded rod, a top plate, and a first spring, the second threaded rod, which is connected to the internal thread of the rotating frame, allows the outer rear end of the second threaded rod to rotate inside the top plate, pushing the top plate forward or backward. This ensures that the outer rear end of the top plate fits tightly against the outer front end of the door body, thus positioning the door body and preventing the cargo from tipping over during transport and impacting the door from the inside, which could lead to an unstable door lock.
[0021] 4. It is equipped with a top plate, a first spring and a door body. When the top plate moves, the first springs fixedly connected to the left and right sides of the front end of the top plate are subjected to pressure and deform, which can ensure the stability of the top plate when it moves inward or outward.
[0022] 5. Equipped with a fixed frame, a pin, and a movable plate, pushing the movable plate upward causes the insert rod connected to the front end of the movable plate to move outward. At this time, the inside of the insert rod slides outward on the outside of the fixed column, and the inner side of the upper end of the insert rod disengages from the slot connection with the pin, which can quickly lock both sides of the container door at the same time. Attached Figure Description
[0023] Figure 1 This is a front view structural diagram of the present invention;
[0024] Figure 2 This is a frontal cross-sectional view of the present invention.
[0025] Figure 3This is a side-view perspective three-dimensional structural diagram of the connection between the second threaded rod, the top plate, and the first spring of this utility model;
[0026] Figure 4 This is a side sectional view of the connection between the fixing frame, the pin, and the plug rod of this utility model.
[0027] Figure 5 This is a top sectional view of the connection between the second threaded rod, the top plate, and the first spring of this utility model.
[0028] In the diagram: 1. Container body; 2. Throttle; 3. Main bevel gear; 4. Linking bevel gear; 5. First threaded rod; 6. Moving frame; 7. Fixed frame; 8. Second threaded rod; 9. Top plate; 10. First spring; 11. Door body; 12. Fixed frame; 13. Pin; 14. Insert rod; 15. Moving plate; 16. Fixed column; 17. Second spring. Detailed Implementation
[0029] 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.
[0030] Please see Figures 1-5 This utility model provides a technical solution: a container safety locking device, including a container body 1, a throttle 2, a main bevel gear 3, a connecting bevel gear 4, a first threaded rod 5, a movable frame 6, a fixed frame 7, a second threaded rod 8, a top plate 9, a first spring 10, a container door body 11, a fixed frame 12, a pin 13, a plug rod 14, a movable plate 15, a fixed column 16, and a second spring 17;
[0031] Existing container safety locking devices are not convenient for simultaneously locking or opening container doors on both sides. Therefore, when it is necessary to open or close the container, it may be necessary to do so one by one. It is not convenient to position the container according to the quantity of goods inside. As a result, if there are many goods inside the container and it is accidentally tipped over, the goods may squeeze the container door panels from the inside, resulting in the container door not being securely locked. It is also not convenient to position the container door externally. During container transportation, bumps may cause the container door to shake and create gaps, affecting the tightness of the container lock.
[0032] The container body 1 has a handle 2 rotatably connected to the front right side of the container body 1. The left end of the handle 2 is fixedly connected to the main bevel gear 3. The upper outer side of the main bevel gear 3 is meshed with the connecting bevel gear 4. The upper end of the connecting bevel gear 4 is fixedly connected to the first threaded rod 5. The outer side of the first threaded rod 5 is threadedly connected to the movable frame 6. The left end of the movable frame 6 is slidably connected to the outer side of the fixed frame 7. The rear end of the fixed frame 7 is fixedly connected to the container body 1. The first threaded rod 5 is rotatably connected to the front right side of the container body 1.
[0033] When the container needs to be positioned at different locations, manually turn the handle 2 to make the main bevel gear 3, which is fixedly connected to the left end of the handle 2, rotate on the lower front side of the container body 1. This drives the connecting bevel gear 4, which is meshed with the upper outer side of the main bevel gear 3, to rotate in the opposite direction. This causes the first threaded rod 5, which is fixedly connected to the upper end of the connecting bevel gear 4, to rotate simultaneously. When the first threaded rod 5 drives the two movable frames 6, which are threadedly connected to the outer side, to move outward, the inner left end of the two movable frames 6 slides outward on the outer side of the fixed frame 7. This allows them to move to the outer edge of the container door body 11 when the cargo inside the container is piled up high, preventing tipping and squeezing the upper and lower corners of the container door body 11. When the first threaded rod 5 drives the two movable frames 6, which are threadedly connected to the outer side, to move inward, the inner left end of the two movable frames 6 slides inward on the outer side of the fixed frame 7. This allows them to move to the middle of the outer side of the container door body 11 when the cargo inside the container is piled up less. This allows for positioning adjustment according to the way the cargo is piled up inward, preventing the cargo from tipping over.
[0034] The movable frame 6 has a second threaded rod 8 internally threaded, and the outer rear end of the second threaded rod 8 is rotatably connected to the inside of the top plate 9. The outer front end of the top plate 9 is fixedly connected to the first spring 10, and the front end of the first spring 10 is fixedly connected to the movable frame 6.
[0035] When it is necessary to withstand the pressure generated by the outward impact of the cargo inside the container during bumpy ride, after adjusting the position of the moving frame 6, rotate the second threaded rod 8 so that the outer rear end of the second threaded rod 8 is rotatably connected to the inside of the top plate 9. At this time, the first spring 10 fixedly connected to the front end of the top plate 9 is under pressure and deforms, causing the top plate 9 to move backward and fit tightly against the outer front end of the container door body 11, positioning the container door body 11. This can squeeze the outside of the container and prevent the container door from being continuously squeezed after the cargo inside tipps over, thus preventing the container door from becoming unstable in its locking position.
[0036] The fixed frame 12 has a slot at its lower outer end connected to a pin 13, and the rear end of the pin 13 is fixedly connected to the container door body 11. The slot at the lower inner end of the fixed frame 12 is connected to a rod 14, the lower inner end of the rod 14 is slidably connected to the outside of the fixed post 16, and the lower inner end of the rod 14 is rotatably connected to the front outer end of the movable plate 15. The upper end of the movable plate 15 is fixedly connected to a second spring 17, the rear outer end of the movable plate 15 is slidably connected to the lower front side of the container body 1, and the outer side of the fixed post 16 is fixedly connected to the lower front side of the container body 1.
[0037] When both doors need to be positioned simultaneously, the movable plate 15 is pushed upwards. At this time, the second spring 17 fixedly connected to the upper end of the movable plate 15 is under pressure and deforms, causing the outer rear end of the movable plate 15 to slide upwards on the outer front end of the container body 1. At this time, the two insert rods 14 rotate outwards from the front end of the movable plate 15 due to the movement of the movable plate 15, causing the inner side of the insert rods 14 to slide outwards from the outer side of the fixing post 16. This causes the inner upper end of the insert rods 14 to disengage from the slot connection between it and the container body 1, and pushes the fixing frame 12 downwards, causing the outer lower end of the fixing frame 12 to slide outwards from the inner side of the pin 13. Slide it down until the lower outer slot of the fixed frame 12 is connected to the lower front side of the container body 1, and release the moving plate 15. At this time, the second spring 17 fixedly connected to the upper end of the moving plate 15 loses pressure and restores its elasticity, causing the moving plate 15 to slide down on the lower front side of the container body 1. The insert rod 14 rotatably connected inside the front end of the moving plate 15 slides inward on the outside of the fixed column 16 until the upper inner slot of the insert rod 14 is connected to the lower inside of the fixed frame 12, positioning the fixed frame 12 and locking the container doors 11 on both sides at the same time. It can be locked at the same time, which is more convenient to use.
[0038] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A container security locking device, comprising: The front end of the door body (11) is tightly fitted with the top plate (9). Its characteristic is that it further includes: A linkage bevel gear (4) is provided with a door body (11) at the rear end of the linkage bevel gear (4), and a first threaded rod (5) is fixedly connected to the upper end of the linkage bevel gear (4), and a movable frame (6) is threadedly connected to the outer side of the first threaded rod (5). The top plate (9) has a connecting bevel gear (4) on its lower front end and a positioning structure for preventing accidental opening on its outer side. The positioning structure includes a second threaded rod (8), the top plate (9) and the door body (11). The door body (11) is tightly fitted to the outer rear end of the top plate (9). The second threaded rod (8) is rotatably connected to the inner front end of the top plate (9), and a first spring (10) is fixedly connected to the outer front end of the top plate (9). The lower end of the top plate (9) is provided with a plug (14) for double locking.
2. A container safety locking device according to claim 1, characterized in that: The outer right end of the linkage bevel gear (4) is meshed with the main bevel gear (3), and the right end of the main bevel gear (3) is fixedly connected with the throttle (2), and the outer right end of the main bevel gear (3) is rotatably connected to the front right end of the container body (1).
3. A container safety locking device according to claim 1, characterized in that: The upper outer side of the first threaded rod (5) is rotatably connected to the inside of the right end of the container body (1), and the inside of the left end of the movable frame (6) is slidably connected to the outside of the fixed frame (7), and the rear end of the fixed frame (7) is fixedly connected to the front side of the left end of the container body (1).
4. A container safety locking device according to claim 1, characterized in that: The movable frame (6) is symmetrically arranged on the outer sides of the upper and lower ends of the first threaded rod (5), and the threads arranged on the outer side of the first threaded rod (5) are arranged in opposite directions.
5. A container safety locking device according to claim 1, characterized in that: The outer side of the door body (11) is rotatably connected to the inside of the container body (1), and the door body (11) is symmetrically arranged on the inner front end of the container body (1). The outer front end of the second threaded rod (8) is threadedly connected to the inside of the movable frame (6).
6. A container safety locking device according to claim 1, characterized in that: The lower end of the insertion rod (14) is rotatably connected to a movable plate (15), and the lower end of the insertion rod (14) is slidably connected to the outside of the fixed column (16). The upper end of the movable plate (15) is fixedly connected to a second spring (17). The outer rear end of the movable plate (15) is slidably connected to the front side of the lower end of the container body (1). The upper end of the second spring (17) is fixedly connected to the outer side of the lower end of the container body (1), and the outer side of the fixed column (16) is fixedly connected to the front side of the lower end of the container body (1).
7. A container safety locking device according to claim 1, characterized in that: The upper inner side of the insert rod (14) is connected to the fixing frame (12), and the upper outer side of the fixing frame (12) is connected to the pin (13), and the rear end of the pin (13) is fixedly connected to the door body (11).