Safety protection device for load lifting of port crane
By designing a protective assembly of damping rods and buffer springs on the tower crane basket, the problem of the simple structure of the tower crane load basket is solved, and the stability and loading flexibility during the load lifting process are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-31
AI Technical Summary
Existing tower cranes have simple load-bearing baskets with a lack of protection, resulting in inconvenient and inflexible loading.
A safety protection device was designed, which includes a lifting basket and protective components. It provides cushioning protection using damping rods and buffer springs, and improves stability and flexibility by extending the extension plate to facilitate loading of items.
It improves the stability during load lifting and the flexibility of loading items, ensuring that the suspended platform does not tilt and is safe and reliable during operation.
Smart Images

Figure CN224062262U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of safety protection devices for lifting loads of port cranes, specifically a safety protection device for lifting loads of port cranes. Background Technology
[0002] Port cranes are lifting equipment specifically used for loading, unloading, and handling cargo in ports. Port cranes can be divided into various types according to their functions and structures, including gantry cranes, portal cranes, and floating cranes.
[0003] A tower crane load-bearing basket, with publication number CN206266119U, includes a load-bearing trolley and a basket. The basket is connected to the load-bearing trolley, with the upper part of the basket movably connected to the load-bearing trolley and the lower part of the basket fixedly connected to the load-bearing trolley. The upper part of the basket is provided with a lug, and the load-bearing trolley corresponding to the position of the lug is provided with a wedge sleeve, which is adapted to the lug. The lower part of the basket is provided with a fixing plate, and the load-bearing trolley corresponding to the position of the fixing plate has a through hole. The fixing plate and the through hole are connected by bolts. This utility model features a double-fixed installation on both the upper and lower sides of the suspended platform, with different installation methods for the upper and lower layers. The structure is aesthetically pleasing and novel. The upper side is connected to a wedge sleeve, emphasizing installation efficiency, while the lower side is connected via a nut and bolts, prioritizing safety and reliability. This ensures the platform remains stable and reliable during normal operation without tilting, offering good applicability and installation effectiveness. However, the aforementioned tower crane load-bearing suspended platform, due to its relatively simple structure and lack of protective features, is not convenient or flexible enough during loading. Therefore, it is necessary to provide a new safety protection device for lifting and lowering loads on port cranes to solve the aforementioned technical problems. Utility Model Content
[0004] The purpose of this utility model is to provide a safety protection device for lifting loads on a port crane, which has the advantages of safety protection and easy loading, and solves the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a safety protection device for lifting loads on a port crane, comprising: a lifting basket, the top of which is fixedly connected to a crossbar, and a door rotatably connected to the outside of which; and a protective component, comprising a fixed frame fixedly connected to the outside of the lifting basket. In use, the lifting basket is combined with the crane. During the lifting process, the damping rod and buffer springs prevent the lifting basket from swaying, and the buffer plate prevents the lifting basket from sliding and colliding, thus providing a buffering and protective effect and improving the overall stability of the device. Simultaneously, when loading goods, the extension plate can be pulled out to make the connection between the ground and the lifting basket smoother, facilitating loading and improving flexibility.
[0006] Preferably, the protective assembly further includes a buffer plate, which is slidably connected to the inside of the fixed frame. Two damping rods are fixedly connected to the right end of the buffer plate, and buffer springs are sleeved on the outside of the two damping rods. Through the damping rods and buffer springs, when the entire lifting basket shakes, the buffer plate causes the lifting basket to slide and collide, thus playing a buffering and protective role and improving the stability of the overall device.
[0007] Preferably, the damping rod is located inside the fixed frame, and foam strips are uniformly fixed to the outside of the buffer plate. The foam strips can help improve friction and prevent slippage, and simultaneously assist the damping rod in providing a buffering and protective effect.
[0008] Preferably, a viewing window is provided on the outside of the door, and a lock body is fixedly connected to the outside of the door and the lifting basket. The viewing window allows for easy observation of the status of the cargo inside the lifting basket during the lifting process.
[0009] Preferably, the bottom of the lifting basket is fixedly connected to four threaded rods, and each of the four threaded rods is rotatably connected to a threaded sleeve. The threaded sleeve can be rotated to move up and down along the external threads of the threaded rod.
[0010] Preferably, the threaded sleeve is rotatably connected to a lower knob on its external thread. The lower knob can limit the movement of the threaded sleeve after it has been raised or lowered on the external thread of the threaded rod, ensuring that the entire lifting basket is easy to contact and level with the ground.
[0011] Preferably, the lifting basket has a sliding groove inside, an extension plate is slidably connected inside the sliding groove, a handle is fixedly connected to the outside of the extension plate, and an upper knob is rotatably connected to the side of the lifting basket via a thread. By pulling out the extension plate, the connection between the ground and the lifting basket can be made more level, which facilitates the loading of items and improves flexibility.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] I. When using this utility model, the lifting basket is combined with a crane. During the lifting of loads, the damping rod and buffer spring can buffer and protect the lifting basket when it shakes and when it slides and collides, thus improving the stability of the overall device.
[0014] Second, this utility model also allows for a smoother connection between the ground and the lifting basket when loading items, by pulling out the extension plate, thus facilitating loading and improving flexibility. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the external structure of a safety protection device for lifting loads on a port crane according to the present invention;
[0016] Figure 2 This is a schematic diagram of the internal structure of a safety protection device for lifting loads on a port crane according to the present invention.
[0017] Figure 3 This is a schematic diagram of the internal structure of the fixed frame of a safety protection device for lifting loads on a port crane according to the present invention.
[0018] Figure 4 This is a schematic diagram of the disassembly structure of the threaded rod of a safety protection device for lifting loads on a port crane according to this utility model.
[0019] In the diagram: 1. Lifting basket; 2. Door; 3. Viewing window; 4. Lock body; 5. Crossbar; 6. Slide rail; 7. Extension plate; 8. Handle; 9. Upper knob; 10. Fixed frame; 11. Buffer plate; 12. Damping rod; 13. Buffer spring; 14. Foam strip; 15. Threaded rod; 16. Threaded sleeve; 17. Lower knob. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a safety protection device for lifting loads on a port crane, comprising: a lifting basket 1, with a crossbar 5 fixedly connected to the top of the lifting basket 1, and a door 2 rotatably connected to the outside of the lifting basket 1; a protective component, comprising a fixed frame 10, which is fixedly connected to the outside of the lifting basket 1. In use, the lifting basket 1 is combined with the crane. During the lifting process, the damping rod 12 and the buffer spring 13 can buffer the lifting basket 1 when it shakes, and the buffer plate 11 can buffer the lifting basket 1 when it slides and collides, thus improving the stability of the overall device. At the same time, when loading goods, the extension plate 7 can be pulled out to make the connection between the ground and the lifting basket 1 more flat, so as to facilitate the loading of goods and improve flexibility.
[0022] The protective assembly also includes a buffer plate 11, which is slidably connected to the inside of the fixed frame 10. Two damping rods 12 are fixedly connected to the right end of the buffer plate 11, and buffer springs 13 are sleeved on the outside of the two damping rods 12. Through the damping rods 12 and the buffer springs 13, when the entire lifting basket 1 shakes, the buffer plate 11 can buffer and protect the lifting basket 1 when it slides and collides, thereby improving the stability of the overall device.
[0023] The damping rod 12 is located inside the fixed frame 10, and foam strips 14 are evenly fixedly connected to the outside of the buffer plate 11. The foam strips 14 can help improve friction and prevent slipping, and simultaneously assist the damping rod 12 in providing a buffering and protective effect.
[0024] A viewing window 3 is provided on the outside of the door body 2. The door body 2 and the lifting basket 1 are fixedly connected to a lock body 4. The viewing window 3 allows for easy observation of the status of the load inside the lifting basket 1 during the lifting process.
[0025] The bottom of the lifting basket 1 is fixedly connected to four threaded rods 15, and each of the four threaded rods 15 is rotatably connected to a threaded sleeve 16. The threaded sleeve 16 can be rotated to rise and fall along the external threads of the threaded rods 15.
[0026] The threaded sleeve 16 is rotatably connected to a lower knob 17. The lower knob 17 can limit the threaded sleeve 16 after it is raised or lowered on the external thread of the threaded rod 15, ensuring that the entire lifting basket 1 can easily contact the ground for leveling.
[0027] When the safety protection device for lifting loads on the port crane is in use, the damping rod 12 and the buffer spring 13 can buffer and protect the lifting basket 1 when it shakes and the buffer plate 11 causes the lifting basket 1 to slide and collide.
[0028] Please see Figures 1 to 4 This utility model provides a technical solution: a safety protection device for lifting loads on a port crane. The lifting basket 1 has a sliding groove 6 inside, and an extension plate 7 is slidably connected inside the sliding groove 6. A handle 8 is fixedly connected to the outside of the extension plate 7. An upper knob 9 is threadedly connected to the outside of the side of the lifting basket 1. By pulling out the extension plate 7, the connection between the ground and the lifting basket 1 can be made more level, so as to facilitate the loading of goods and improve flexibility.
[0029] When the safety protection device for lifting loads on the port crane is in use, the extension plate 7 can be pulled out to make the connection between the ground and the lifting basket 1 more level, so as to facilitate the loading of goods and improve flexibility.
[0030] The standard parts used in this embodiment can be purchased directly from the market, while the non-standard structural parts described in the specification and drawings can be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.
[0031] 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 safety device for load lifting of a port crane, characterized in that Include: Lift basket (1), the top of the lift basket (1) is fixedly connected with a cross bar (5), the outside of the lift basket (1) is movably connected with a door body (2); The protection assembly includes a fixed frame (10), and the fixed frame (10) is fixedly connected to the outside of the lift basket (1).
2. A safety shield for load lifting of a port crane according to claim 1, characterized in that The protection assembly further includes a buffer plate (11), the buffer plate (11) is slidably connected to the inside of the fixed frame (10), the right end of the buffer plate (11) is fixedly connected with two damping rods (12), the outside of the two damping rods (12) is sleeved with a buffer spring (13).
3. A safety shield for load lifting of a port crane according to claim 2, characterized in that: The damping rod (12) is located in the inside of the fixed frame (10), the outside of the buffer plate (11) is uniformly fixedly connected with a foam strip (14).
4. A safety shield for load lifting of a port crane according to claim 1, characterized in that: The outside of the door body (2) is provided with a viewing window (3), and the door body (2) and the outside of the lift basket (1) are fixedly connected with a lock body (4).
5. A safety shield for load lifting of a port crane according to claim 1, characterized in that: The bottom of the lift basket (1) is fixedly connected with four threaded rods (15), and the outside of the four threaded rods (15) is threadedly rotatably connected with a threaded sleeve (16).
6. A safety shield for load lifting of a port crane according to claim 5, characterized in that: The outside of the threaded sleeve (16) is threadedly rotatably connected with a lower knob (17).
7. A safety shield for load lifting of a port crane according to claim 1, characterized in that: The inside of the lift basket (1) is provided with a sliding groove (6), the inside of the sliding groove (6) is slidably connected with an extension plate (7), the outside of the extension plate (7) is fixedly connected with a handle (8), and the side of the lift basket (1) is threadedly rotatably connected with an upper knob (9).
Citation Information
Patent Citations
Tower crane load hanging flower basket
CN206266119U