Ship lift for coastal patrol boat

By combining guide rods and buffer pads, and controlling hydraulic cylinders and servo motors, the swaying problem during the lifting and lowering of patrol boats has been solved, enabling stable lifting and lowering and safe maintenance of patrol boats.

CN224048105UActive Publication Date: 2026-03-27ZHENJIANG HONGRUI MASCH MFG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Coast Guard vessels are prone to swaying during takeoff and landing, which can lead to collisions and affect stability. Existing technologies are unable to effectively solve this problem.

Method used

The system employs a combination of guide rods and buffer pads. The guide rods limit the swaying of the lifting platform, while the buffer pads reduce impact. Simultaneously, hydraulic cylinders and servo motors are used to control the displacement and vertical lifting of the lifting platform.

Benefits of technology

Effectively control the swaying of the lifting platform, reduce the risk of collision, improve the stability and flexibility of the lifting of patrol vessels, reduce labor costs, and improve safety performance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224048105U_ABST
    Figure CN224048105U_ABST
Patent Text Reader

Abstract

The utility model discloses a maritime patrol boat lift relates to ship lift technical field, including base, hydraulic oil cylinder and servo motor, the outer side of base is equidistantly provided with guide slot, the right top of base is provided with frame, the back of base is provided with hydraulic oil cylinder, the top of base is provided with displacement mechanism, the servo motor is provided with servo motor, the servo motor is provided with servo motor. The displacement mechanism is used for adjusting the positions of the rack and the lifting platform so as to conveniently displace and descend the coastal patrol boat fixed on the lifting platform, a lifting mechanism is arranged on the outer side of the rack, and the lifting mechanism is used for vertically releasing and lifting the outer side of the lifting platform. And then the sea patrol boat is released or separated from the water surface to be overhauled. The outer side of the lifting platform is movably connected through the vertically-arranged guide rods, the swing amplitude of the lifting platform is controlled, the situation that the ship body is collided and damaged in the lifting process due to too large swing is avoided, and the influence on the ship body is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ship lift, in particular to the sea patrol boat ship lift. BACKGROUND

[0002] The main responsibility of the sea patrol boat includes water area safety supervision, navigation order management, marine life rescue, etc., the tonnage of the offshore sea patrol boat is smaller, and part of the wharf dark surge and large wave can easily cause damage to the sea patrol boat in the mooring state. The sea patrol boat is usually separated from the water surface by using the steel rail slide method, mobile or fixed crane method.

[0003] During lifting, the steel cable itself is prone to shaking due to the light weight of the sea patrol boat, which can affect the stability of the ship body during lifting and cause collision of the ship body. SUMMARY

[0004] The utility model discloses a sea patrol boat ship lift to solve the above defects caused by the prior art.

[0005] The sea patrol boat ship lift comprises a base, a hydraulic cylinder and a servo motor, guide grooves are formed at equal intervals on the outer side of the base, a rack is arranged above the base, a hydraulic cylinder is arranged at the back of the base, a displacement mechanism is arranged at the top end of the base, the displacement mechanism adjusts the position of the rack and the lifting platform, thereby facilitating the displacement and descent of the sea patrol boat fixed on the lifting platform, a lifting mechanism is arranged on the outer side of the rack, the lifting mechanism vertically releases and lifts the outer side of the lifting platform, thereby completing the release or separation of the sea patrol boat from the water surface for maintenance.

[0006] Preferably, the displacement mechanism comprises a rack, guide grooves, a hydraulic cylinder, counterweight plates, a traction frame and container dolly wheels, a plurality of groups of counterweight plates are arranged on one side of the rack, the bottom end of the traction frame is connected to the inside of one group of guide grooves, the back of the traction frame is connected to the output end of the hydraulic cylinder, the container dolly wheels are symmetrically arranged at the bottom end of the rack, and the outer side of the traction frame is connected to two groups of racks.

[0007] Preferably, the rack is connected to the guide grooves through the container dolly wheels symmetrically arranged at the bottom end.

[0008] Preferably, the rack is connected to the output end of the hydraulic cylinder through the traction frame connected to the outer side.

[0009] Preferably, the lifting mechanism comprises a transmission shaft, a cable reel, a servo motor, a steel cable, a guide rod, a buffer rubber pad and a lifting platform, the servo motor is installed outside the rack, one end of the transmission shaft is connected with the output end of the servo motor, the transmission shaft is keyed outside the cable reel, the cable reel is wound outside and connected with the steel cable, the tail end of the steel cable is connected with the two sides of the lifting platform, the two sides of the lifting platform are provided with the guide rods, the guide rods are penetrated and connected with the two sides of the rack outside, and the top end of the guide rod is provided with the buffer rubber pad.

[0010] Preferably, the buffer rubber pad is movably connected with the two sides of the lifting platform through the bottom end.

[0011] Compared with the prior art, the lifting platform has the following advantages:

[0012] 1. The guide rod movably connected with the outside of the lifting platform controls the swing amplitude of the lifting platform, avoids the excessive swing, reduces the collision damage of the ship body during the lifting process, and buffers the force generated by the downward movement by the buffer rubber pad arranged at the top end of the guide rod. The movable connection of the guide rod and the lifting platform can limit the left-right and front-back swing of the ship lift, and avoid the large swing of the patrol boat during lifting.

[0013] 2. The hydraulic oil cylinder drives the lifting platform to displace, thereby adjusting the displacement range of the patrol boat according to the specific size of the patrol boat, moving the patrol boat to the shore for maintenance, improving the flexibility of lifting different specifications of patrol boats, and simply operating without the need for multiple personnel to work together, reducing the overall labor cost and improving the safety performance of the patrol boat. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole three-dimensional structure schematic view of the utility model.

[0015] Figure 2 It is a whole side view structure schematic view in the utility model.

[0016] Figure 3 It is a base side sectional structure schematic view in the utility model.

[0017] Figure 4 It is a whole top view structure schematic view in the utility model.

[0018] Among them:

[0019] 1. Base; 2. Guide groove; 3. Hydraulic cylinder; 4. Counterweight plate; 5. Frame; 6. Displacement mechanism; 7. Drive shaft; 8. Cable reel; 9. Lifting mechanism; 10. Servo motor; 11. Steel cable; 12. Guide rod; 13. Buffer pad; 14. Lifting platform; 15. Traction frame; 16. Container casters. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figures 1 to 4 As shown, the patrol boat lift includes a base 1, hydraulic cylinders 3, and a servo motor 10. Guide grooves 2 are evenly spaced on the outer side of the base 1. A frame 5 is installed directly above the base 1. Hydraulic cylinders 3 are installed on the back of the base 1. A displacement mechanism 6 is installed at the top of the base 1. The displacement mechanism 6 adjusts the position of the frame 5 and the lifting platform 14, thereby facilitating the displacement and descent of the patrol boat fixed on the lifting platform 14. A lifting mechanism 9 is installed on the outer side of the frame 5. The lifting mechanism 9 vertically releases and lifts the outer side of the lifting platform 14, thereby completing the release of the patrol boat or its removal from the water for maintenance.

[0022] In this embodiment, the displacement mechanism 6 includes a frame 5, a guide groove 2, a hydraulic cylinder 3, a counterweight plate 4, a traction frame 15, and container casters 16. Multiple sets of counterweight plates 4 are provided on one side of the frame 5. The bottom end of the traction frame 15 is connected to the inside of one set of the guide groove 2. The output end of the hydraulic cylinder 3 is connected to the back of the traction frame 15. The container casters 16 are symmetrically arranged on both sides of the bottom end of the frame 5. Two sets of outer sides of the frame 5 are connected to the outer side of the traction frame 15. The frame 5 and the lifting platform 14 are moved by the hydraulic cylinder 3, which facilitates the control of the swing range according to the lifting requirements.

[0023] In this embodiment, the frame 5 is connected to the guide groove 2 via container casters 16 symmetrically arranged at the bottom. The container casters 16 drive the frame 5 to move, reducing the friction during the movement of the frame 5.

[0024] In this embodiment, the frame 5 is connected to the output end of the hydraulic cylinder 3 via the traction frame 15 connected to the outside. The traction frame 15 is used to move the two sets of frames 5 and control the range of motion of the frames 5.

[0025] In this embodiment, the lifting mechanism 9 comprises a transmission shaft 7, a cable reel 8, a servo motor 10, a steel cable 11, a guide rod 12, a buffer rubber pad 13 and a lifting platform 14, the servo motor 10 is installed outside the rack 5, one end of the transmission shaft 7 is connected with the output end of the servo motor 10, the outer side of the transmission shaft 7 is key connected with the cable reel 8, the outer side of the cable reel 8 is woundly connected with the steel cable 11, the tail end of the steel cable 11 is connected with the two sides of the lifting platform 14, the two sides of the lifting platform 14 are provided with the guide rod 12, the outer side of the guide rod 12 is penetratedly connected with the two sides of the rack 5, the top end of the guide rod 12 is provided with the buffer rubber pad 13, the lifting platform 14 is vertically lifted through the cable reel 8, and the stability of the patrol boat is improved.

[0026] In this embodiment, the buffer rubber pad 13 is movably connected with the two sides of the lifting platform 14 through the bottom end connected with the guide rod 12, and the impact force in the descending process is reduced through the buffer rubber pad 13 arranged at the top end of the guide rod 12.

[0027] The diamond production cleaning device in actual application includes the following working contents:

[0028] Step 1: in the use process, first open the hydraulic oil cylinder 3, push the traction frame 15 connected on one side and the rack 5 connected on both sides by means of the hydraulic oil cylinder 3, so that the rack 5 is arranged in the guide groove 2 through the bottom end of the plurality of container casters 16, thereby completing the displacement of the rack 5 and the cable reel 8 arranged on one side, so that the rack 5 and the cable reel 8 arranged on one side are moved to the outside of the seaside wharf, and are arranged in parallel with the coast guard ship parked outside the seaside wharf, and then the hydraulic oil cylinder 3 is closed.

[0029] Step 2: then open the servo motor 10, rotate the two groups of symmetrically arranged cable reels 8 through the servo motor 10, release the steel cable 11 wound outside the cable reel 8, vertically lower the lifting platform 14 through the steel cable 11, and vertically lower the guide rods 12 symmetrically connected outside the lifting platform 14 at the same time, when the guide rod 12 is lowered to the tail end, the pressure of the downward movement of the guide rod 12 is buffered through the buffer rubber pad 13 arranged at the top end;

[0030] Step 3: when the lifting platform 14 is lowered below the sea level, (and the height of the lifting platform 14 is lower than the bottom end of the patrol boat), then the patrol boat is driven to the above of the lifting platform 14, and the cable of the patrol boat is fixed at the connecting end of the guide rod 12 or the steel cable 11 and the lifting platform 14, when the fixing of the patrol boat is completed, first open the servo motor 10 to drive the transmission shaft 7 to rotate, so that the steel cable 11 is wound through the cable reel 8, so that the lifting platform 14 is separated from the sea level;

[0031] Step 4: At this time, the operator and the personnel on the patrol boat observe whether the connection between the patrol boat and the lifting platform 14 is stable to avoid loosening, (when loosening occurs, the servo motor 10 is turned off in time), then the cable reel 8 drives the steel cable 11 to be wound, so that the lifting platform 14 continues to rise, so that the height of the lifting platform 14 is greater than the height of the base 1, and then the hydraulic oil cylinder 3 is opened, the traction frame 15 and the rack 5 are driven to displace by the hydraulic oil cylinder 3, so that the lifting platform 14 and the patrol boat are moved above the base 1, and then the lifting platform 14 and the patrol boat are placed on the surface of the base 1.

[0032] Therefore, the above disclosed embodiments are only illustrative in all aspects, and are not the only ones. All changes within the scope of the utility model or within the scope equivalent to the utility model are included in the utility model.

Claims

1. A sea-going patrol boat hoist, characterised in that: Including base (1), hydraulic cylinder (3) and servo motor (10), the outer side of the base (1) is equidistantly provided with guide groove (2), the top of the base (1) is provided with rack (5), the back of the base (1) is provided with hydraulic cylinder (3), the top end of the base (1) is provided with displacement mechanism (6), the position of rack (5) and lifting platform (14) is adjusted by displacement mechanism (6), in turn, the displacement and lowering of the marine patrol boat fixed on the lifting platform (14) are facilitated, the outer side of the rack (5) is provided with lifting mechanism (9), the outer side of the lifting platform (14) is vertically released and pulled by lifting mechanism (9), in turn, the marine patrol boat is released or separated from the water surface for maintenance.

2. The sea-going vessel hoist of claim 1, wherein: The displacement mechanism (6) comprises rack (5), guide groove (2), hydraulic cylinder (3), counterweight plate (4), traction frame (15) and container wheel (16), one side of the rack (5) is provided with a plurality of counterweight plates (4), one group of the guide groove (2) is internally connected with the bottom end of the traction frame (15), the back of the traction frame (15) is connected with the output end of the hydraulic cylinder (3), the container wheels (16) are symmetrically arranged at the bottom end of the rack (5), and the outer side of the traction frame (15) is connected with two groups of racks (5) on the outer side.

3. The sea-going vessel hoist of claim 2, wherein: The rack (5) is connected with the guide groove (2) through the container wheels (16) symmetrically arranged at the bottom end.

4. The sea-going vessel hoist of claim 2, wherein: The rack (5) is connected with the output end of the hydraulic cylinder (3) through the traction frame (15) connected on the outer side.

5. The sea-going vessel hoist of claim 1, wherein: The lifting mechanism (9) comprises transmission shaft (7), cable reel (8), servo motor (10), steel cable (11), guide rod (12), buffer rubber pad (13) and lifting platform (14), the servo motor (10) is installed on the outer side of the rack (5), one end of the transmission shaft (7) is connected with the output end of the servo motor (10), the outer side of the transmission shaft (7) is key-connected with the cable reel (8), the outer side of the cable reel (8) is woundly connected with the steel cable (11), the tail end of the steel cable (11) is connected with the two sides of the lifting platform (14), the two sides of the lifting platform (14) are provided with guide rods (12), the outer sides of the guide rods (12) are through-connected with the two sides of the rack (5), and the top end of the guide rod (12) is provided with the buffer rubber pad (13).

6. The sea-going vessel hoist of claim 5, wherein: The buffer rubber pad (13) is movably connected with the two sides of the lifting platform (14) through the bottom end of the guide rod (12).