Anti-overturning locking device for container ship
By designing a plug-in positioning locking mechanism, the problem of container ship lashing straps coming loose under the impact of waves has been solved, achieving stability and safety in lashing and adapting to the lashing needs of containers of different sizes.
Patent Information
- Application Number
- CN202621086915.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-17
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2036-07-17
AI Technical Summary
The existing container ship lashing straps have poor locking effect after length adjustment, and are prone to loosening under the impact of waves, resulting in lashing failure and posing a safety hazard.
A container ship lashing and anti-overturning locking device was designed. It adopts a plug-in positioning locking mechanism. The length of the lashing straps can be adjusted by rotating the take-up and release wheel. The magnetic connection between the positioning post and the positioning sleeve and the clamping force of the spring are used to ensure that the lashing straps do not loosen under the impact of wind and waves.
It significantly improves the lashing and securing effect, prevents container slippage and overturning, enhances navigation safety, and is simple and efficient to operate.
Smart Images

Figure CN224676347U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary equipment technology for container ships, and in particular to a container ship lashing, fixing and anti-tipping locking device. Background Technology
[0002] Container ships are specialized cargo ships designed to transport ISO standard containers, commonly known as "container ships," and are the core transport equipment for ocean freight. When containers are loaded on the deck or in the hold of a container ship, the ship is susceptible to the effects of rolling, pitching, heaving, and the impact of wind and waves during its voyage at sea, which can cause the containers to slip, capsize, or even fall.
[0003] In existing technologies, lashing straps are typically used to secure containers to the ship's hull. These straps generally have adjustable lengths to accommodate containers of different sizes. However, after length adjustment, the locking mechanism of existing lashing straps is not very effective. Under conditions of continuous wave impact and repeated ship rolling, the lashing adjustment mechanism is prone to loosening, leading to a decrease in lashing restraint or even complete failure of the lashing. This can ultimately cause the container to overturn or fall, posing a significant safety hazard.
[0004] Therefore, a container ship lashing and anti-tipping locking device is provided to address the above-mentioned problems. Utility Model Content
[0005] This invention provides a container ship lashing and anti-overturning locking device to solve the technical problem of poor locking effect after length adjustment.
[0006] This utility model solves the above-mentioned technical problems through the following technical solutions: This utility model provides a container ship lashing and anti-tipping locking device, including a base; a first lashing strap is fixed to one side of the base; a take-up and release wheel is rotatably mounted on the side of the base away from the first lashing strap, and a second lashing strap is provided on the take-up and release wheel; when the take-up and release wheel is rotated, the second lashing strap is released from the take-up and release wheel or rolled onto the take-up and release wheel to adjust the release length of the second lashing strap; a locking mechanism is provided at one end of the take-up and release wheel, and the locking mechanism is mounted on the base.
[0007] Preferably, the locking mechanism includes a frame fixedly mounted on the base. A circular hole is provided on one side of the frame that is fixed to the base. One end of the take-up and release wheel passes through the circular hole and extends into the frame. A square groove is provided at the axis of the take-up and release wheel, and the square groove has an open end. The open end of the square groove is located on the end face of the end of the take-up and release wheel that extends into the frame. A square shaft is slidably fitted to the square groove. A movable disc is fixed at one end of the square shaft that is located in the frame. An insertion positioning component is provided on the movable disc.
[0008] Preferably, the number of the plug-in positioning components is several, and the several plug-in positioning components are distributed in a circular array around the square axis. The plug-in positioning component includes a positioning sleeve and a positioning post fixed on the movable plate; the positioning sleeve is fixed on the inner side wall of the frame, and the positioning post is plugged into the positioning sleeve.
[0009] Preferably, a first spring in a compressed state is fixed on the side of the movable disk away from the plug-in positioning component, and the end of the first spring away from the movable disk slides or rolls against the inner wall of the frame.
[0010] Preferably, the positioning post is a permanent magnet post, and the positioning post is magnetically connected to the positioning sleeve.
[0011] Preferably, a circular shaft is fixed in the middle of the movable plate, a circular sleeve is fixed on the side of the frame away from the base, the circular shaft and the circular sleeve are slidably engaged, a turntable is fixed at the end of the circular shaft that extends out of the frame, and a ring of anti-slip texture is provided on the circumference of the turntable.
[0012] Preferably, the circular sleeve has multiple side grooves around its perimeter, and each of the multiple side grooves is provided with a pressing part; the pressing part includes a pressure cylinder fitted and installed in the side groove, the pressure cylinder is provided with a second spring, and a stop is threadedly installed on the outer side of the side groove.
[0013] Preferably, one end of the second spring abuts against the inner wall of the pressure cylinder, and the other end of the second spring abuts against the stop seat. One end of the pressure cylinder is provided with a ball head, and the ball head end of the pressure cylinder is pressed against the cylindrical surface of the round shaft.
[0014] Preferably, a first hook is fixed to the end of the first strap away from the seat; and a second hook is fixed to the end of the second strap away from the seat.
[0015] Preferably, a handle is fixed to one bottom side of the seat.
[0016] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.
[0017] The positive and progressive effects of this utility model are as follows: The container ship lashing and anti-tipping locking device proposed above can flexibly adjust the release length of the second lashing strap by rotating the release wheel, which can adapt to the lashing and fixing needs of containers of different sizes, significantly improving the versatility and adaptability of the device.
[0018] The system employs a plug-in positioning locking mechanism. In the locked state, the positioning pin inserts into the positioning sleeve to restrict the rotation of the movable disc. Combined with the transmission cooperation between the square shaft and the square groove, this limits the movement of the take-up and release wheels, preventing them from rotating freely. When the ship is subjected to wind and waves and the lashing straps are subjected to alternating tension, the second lashing strap will not loosen from the take-up and release wheels, ensuring the effectiveness of the lashing and preventing container slippage and capsizing due to lashing failure, thus improving navigation safety.
[0019] When locked, the first spring, in its compressed state (not fully compressed), continuously applies axial thrust to the movable disc, pressing the positioning pin into the positioning sleeve to prevent the insertion structure from dislodging due to vibration. When not locked, the positioning pin leaves the positioning sleeve, and the first spring is further compressed (the compression is greater than in the locked state). The positioning pin is made of permanent magnet material, forming a magnetic connection with the iron positioning sleeve, further enhancing the reliability of the insertion positioning. At the same time, the pressing parts around the circular sleeve, through the compression force of the second spring, press the pressure cylinder against the circular shaft, providing a limit for the circular shaft. This multi-dimensional improvement enhances the anti-loosening capability of the locking mechanism, maintaining a stable locking state even in complex sea conditions.
[0020] Unlocking and length adjustment can be performed using the turntable on the outside of the frame. Pulling the turntable outward will release the insertion limit between the positioning column and the positioning sleeve. Rotating the turntable will drive the retraction wheel to retract or extend the straps. After adjustment, releasing the turntable will cause the first spring to automatically push the movable plate to reset, achieving automatic locking. The operation process is simple and efficient, facilitating quick operation for crew members. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the retractable wheel and locking mechanism of this utility model; Figure 3 This is a structural schematic diagram of one side of the locking mechanism of this utility model; Figure 4 This is a schematic diagram of the internal structure of the frame of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the locking mechanism of this utility model; Figure 6 This utility model Figure 5 Enlarged structural diagram of section A in the middle.
[0022] Explanation of reference numerals in the attached figures 1. Base; 2. Handle; 3. First strap; 4. First hook; 5. Second strap; 6. Second hook; 7. Retractable wheel; 701. Square groove; 8. Locking mechanism; 801. Frame; 802. Turntable; 803. Movable disc; 804. Round shaft; 805. Round sleeve; 8051. Side groove; 806. First spring; 807. Positioning pin; 808. Positioning sleeve; 809. Square shaft; 9. Pressing part; 901. Pressure cylinder; 902. Second spring; 903. Stop. Detailed Implementation
[0023] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments described herein.
[0024] like Figures 1-6 As shown, the anti-tipping locking device for container ships includes a base 1; A first strap 3 is fixed to one side of the seat body 1; a take-up and release wheel 7 is rotatably mounted on the side of the seat body 1 away from the first strap 3, and a second strap 5 is provided on the take-up and release wheel 7; when the take-up and release wheel 7 is rotated, the second strap 5 is released from the take-up and release wheel 7 or rolled up onto the take-up and release wheel 7 to adjust the length of the second strap 5. One end of the retractable wheel 7 is provided with a locking mechanism 8, and the locking mechanism 8 is mounted on the base 1.
[0025] In practical implementation, the extension length of the second lashing strap 5 can be flexibly adjusted by rotating the retractable wheel 7 to adapt to the lashing needs of containers of different sizes, significantly improving versatility. Furthermore, through the setting of the locking mechanism 8, after adjusting the extension length of the second lashing strap 5, the locking mechanism 8 locks the retractable wheel 7. After the container is tied, the second lashing strap 5 will not loosen from the retractable wheel 7 when subjected to wind and waves, ensuring the lashing and fixing effect, avoiding loosening and lashing failure, and thus preventing the container from overturning.
[0026] like Figures 3-5 As shown, the locking mechanism 8 includes a frame 801 fixedly installed on the base 1. The frame 801 can be fixedly installed on the base 1 by welding. A round hole is opened on the side of the frame 801 that is fixed to the base 1. One end of the take-up and release wheel 7 passes through the round hole and the other end of the take-up and release wheel 7 extends into the frame 801. A square groove 701 is opened at the axis of the take-up and release wheel 7, and the square groove 701 is provided with an open end. The open end of the square groove 701 is located on the end face of the end of the take-up and release wheel 7 that extends into the frame 801. A square shaft 809 is slidably fitted to the square groove 701. A movable disc 803 is fixed at one end of the square shaft 809 located inside the frame 801. A plug-in positioning component is provided on the movable disc 803.
[0027] When the insertion positioning component is in the insertion state, it limits the movable disk 803, preventing the movable disk 803 from rotating. The square shaft 809 fixed with the movable disk 803 cooperates with the square groove 701 at the center of the take-up and release wheel 7, thereby preventing the take-up and release wheel 7 from rotating and locking the take-up and release wheel 7.
[0028] When the insertion positioning component is not inserted, the limit of the movable disk 803 is canceled. Rotating the movable disk 803 can drive the take-up and release wheel 7 to rotate through the square shaft 809.
[0029] The number of the plug-in positioning components is several, and the several plug-in positioning components are distributed in a circular array around the square axis 809. The plug-in positioning components include positioning sleeves 808 and positioning posts 807 fixed on the movable disk 803. The positioning sleeves 808 are fixed on the inner side wall of the frame 801, and the positioning posts 807 are plugged into the positioning sleeves 808.
[0030] By moving the movable disk 803 along the length of the square axis 809, the movable disk 803, the square axis 809, and the positioning post 807 move together, causing the positioning post 807 to leave or insert into the positioning sleeve 808; after the positioning post 807 is inserted into the positioning sleeve 808, the insertion positioning is achieved; after the positioning post 807 leaves the positioning sleeve 808, the insertion positioning is released.
[0031] A first spring 806 in a compressed state is fixed on the side of the movable disk 803 away from the insertion positioning component, and the end of the first spring 806 away from the movable disk 803 slides or rolls against the inner wall of the frame 801. The end of the first spring 806 can slide directly against the inner wall of the frame 801; or a rolling friction structure such as a ball bearing can be provided at the abutment point to form a rolling abutment.
[0032] When the positioning pin 807 is inserted into the positioning sleeve 808, the compression force of the first spring 806 acts on the movable plate 803, causing the positioning pin 807 to press the positioning sleeve 808 tightly, which improves the insertion and limiting effect of the two and prevents them from coming apart when subjected to wind and waves.
[0033] The first spring 806 abuts against the inner wall of the frame 801. When the movable disk 803 rotates, the first spring 806 rubs against the inner wall of the frame 801. Rotation does not twist the first spring 806 and does not affect the rotation of the movable disk 803. In specific implementations, a rolling friction structure, such as a ball bearing, can be provided at the point where the first spring 806 abuts against the inner wall of the frame 801 to reduce frictional resistance and wear.
[0034] The positioning post 807 is a permanent magnet post, and it is magnetically connected to the positioning sleeve 808. The positioning sleeve 808 is made of iron and can be magnetically attracted to the positioning post 807. When the positioning post 807 is inserted into the positioning sleeve 808, the two are magnetically attracted to each other, which further improves the positioning effect and reduces the possibility of separation.
[0035] A circular shaft 804 is fixed in the middle of the movable plate 803. A circular sleeve 805 is fixed on the side of the frame 801 away from the base 1. The circular shaft 804 and the circular sleeve 805 are slidably engaged. A turntable 802 is fixed at one end of the circular shaft 804 that extends out of the frame 801. A ring of anti-slip texture is provided on the circumference of the turntable 802.
[0036] The circular shaft 804 and the turntable 802 facilitate the pulling and rotating of the movable disc 803. The circular sleeve 805 provides space for the circular shaft 804 to pass through the frame 801 and extend outside the frame 801. At the same time, its circular structure does not affect the rotation of the circular shaft 804.
[0037] When the take-up and release wheel 7 needs to be released from its locking position, pull the turntable 802. This will cause the movable disc 803, square shaft 809, and positioning pin 807 to move together via the round shaft 804. This will cause the positioning pin 807 to move away from the positioning sleeve 808 and increase the compression of the first spring 806. After the above operation, the square shaft 809 will still be inserted in the square groove 701, while the positioning pin 807 will separate from the positioning sleeve 808, thus completing the release of the lock. Rotate the turntable 802. This will cause the movable disc 803 to rotate via the round shaft 804. The movable disc 803 will then cause the take-up and release wheel 7 to rotate via the square shaft 809, thus winding up or releasing the second strap 5.
[0038] After the second strap 5 is extended and the length is adjusted, align the positioning pin 807 with the positioning sleeve 808, release the turntable 802, and through the elastic force of the first spring 806, cause the movable disc 803 to drive the positioning pin 807 to insert into the positioning sleeve 808. After the positioning pin 807 is inserted into the positioning sleeve 808, the first spring 806 is still in a compressed state, and its compression elastic force acts on the movable disc 803, causing the positioning pin 807 to press against the positioning sleeve 808. Combined with the magnetic attraction between the positioning sleeve 808 and the positioning pin 807, reliable limiting is provided, and locking is provided for the retractable wheel 7.
[0039] like Figures 5-6 As shown, the circular sleeve 805 has multiple side grooves 8051 around its perimeter, and each of the multiple side grooves 8051 is provided with a pressing part 9; the pressing part 9 includes a pressure cylinder 901 that is fitted and installed in the side groove 8051, a second spring 902 is provided in the pressure cylinder 901, and a stop seat 903 is threadedly installed on the outer side of the side groove 8051.
[0040] One end of the second spring 902 abuts against the inner wall of the pressure cylinder 901, and the other end of the second spring 902 abuts against the stop 903. One end of the pressure cylinder 901 is provided with a ball head, and the ball head end of the pressure cylinder 901 is pressed against the cylindrical surface of the round shaft 804.
[0041] The second spring 902 is in a compressed state, and its compression force acts on the round shaft 804 through the pressure cylinder 901, increasing the friction between the pressure cylinder 901 and the round shaft 804; the round shaft 804 is fixed to the positioning post 807 through the movable plate 803. Through the above design, the round shaft 804 is limited, thereby improving the limiting effect of the locking mechanism 8.
[0042] The stop 903 is cylindrical and can be screwed. It is threaded onto the outer end of the side groove 8051. The stop 903 can be disassembled and assembled by turning it. After the stop 903 is removed, the pressure cylinder 901 and the second spring 902 can be emptied from the outer end of the side groove 8051 for easy disassembly and replacement.
[0043] like Figure 1 As shown, a first hook 4 is fixed to the end of the first strap 3 away from the base 1; a second hook 6 is fixed to the end of the second strap 5 away from the base 1. The first hook 4 and the second hook 6 are fixedly installed on the first strap 3 and the second strap 5 by rivets. The first hook 4 and the second hook 6 are made of high-strength alloy steel. When the first strap 3 and the second strap 5 are used to bind cargo containers, the first hook 4 and the second hook 6 are hooked onto the lashing posts of the container ship to secure the containers to the container ship.
[0044] like Figure 1 As shown, a handle 2 is fixed to the bottom of one side of the base 1. The handle 2 makes the entire device easy to carry.
[0045] This utility model is not limited to the above-described embodiments. Any changes made to its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.
Claims
1. A container ship lashing and anti-tipping locking device, characterized in that: Including the base (1); A first strap (3) is fixed to one side of the seat (1); a take-up and release wheel (7) is rotatably installed on the side of the seat (1) away from the first strap (3), and a second strap (5) is provided on the take-up and release wheel (7); when the take-up and release wheel (7) is rotated, the second strap (5) is released from the take-up and release wheel (7) or rolled up onto the take-up and release wheel (7) to adjust the length of the second strap (5) released. One end of the retractable wheel (7) is provided with a locking mechanism (8), and the locking mechanism (8) is mounted on the base (1); The locking mechanism (8) includes a frame (801) fixedly mounted on the base (1). A circular hole is provided on one side of the frame (801) where it is fixed to the base (1). One end of the take-up and release wheel (7) passes through the circular hole, and the other end of the take-up and release wheel (7) extends into the frame (801). A square groove (701) is provided at the axis of the take-up and release wheel (7), and the square groove (701) has an open end. The open end of the square groove (701) is located at the end of the take-up and release wheel (7) that extends into the frame (801). On the end face, the square groove (701) is slidably fitted with a square shaft (809), and a movable disk (803) is fixed at one end of the square shaft (809) inside the frame (801). A plug-in positioning component is provided on the movable disk (803). A first spring (806) in a compressed state is fixed on the side of the movable disk (803) away from the plug-in positioning component, and the end of the first spring (806) away from the movable disk (803) slides or rolls against the inner side wall of the frame (801).
2. The container ship lashing and anti-overturning locking device as described in claim 1, characterized in that: The number of the plug-in positioning components is several, and the several plug-in positioning components are distributed in a ring array around the square axis (809). The plug-in positioning components include positioning sleeves (808) and positioning posts (807) fixed on the movable disk (803). The positioning sleeves (808) are fixed on the inner side wall of the frame (801), and the positioning posts (807) are plugged into the positioning sleeves (808).
3. The container ship lashing and anti-overturning locking device as described in claim 2, characterized in that: The positioning post (807) is a permanent magnet post, and the positioning post (807) is magnetically connected to the positioning sleeve (808).
4. The container ship lashing and anti-overturning locking device as described in claim 1, characterized in that: A circular shaft (804) is fixed in the middle of the movable plate (803), and a circular sleeve (805) is fixed on the side of the frame (801) away from the seat (1). The circular shaft (804) and the circular sleeve (805) are slidably engaged. A turntable (802) is fixed at one end of the circular shaft (804) that extends out of the frame (801), and a ring of anti-slip texture is provided on the circumference of the turntable (802).
5. The container ship lashing and anti-overturning locking device as described in claim 4, characterized in that: The circular sleeve (805) has multiple side grooves (8051) around its perimeter, and each of the multiple side grooves (8051) is provided with a pressing part (9); the pressing part (9) includes a pressure cylinder (901) fitted in the side groove (8051), a second spring (902) is provided in the pressure cylinder (901), and a stop seat (903) is threaded on the outside of the side groove (8051).
6. The container ship lashing and anti-overturning locking device as described in claim 5, characterized in that: One end of the second spring (902) abuts against the inner wall of the pressure cylinder (901), and the other end of the second spring (902) abuts against the stop (903). One end of the pressure cylinder (901) is provided with a ball head, and the ball head end of the pressure cylinder (901) is pressed against the cylindrical surface of the round shaft (804).
7. The container ship lashing and anti-overturning locking device as described in claim 1, characterized in that: The first strap (3) is fixed with a first hook (4) at the end away from the seat (1); the second strap (5) is fixed with a second hook (6) at the end away from the seat (1).
8. The container ship lashing and anti-overturning locking device as described in claim 1, characterized in that: A handle (2) is fixed to the bottom of one side of the seat (1).