Ship-borne boat retracting and launching device

Abstract

The present invention relates to the technical field of marine equipment, and discloses a ship-borne boat storage and launching device. The present invention is assisted by a blocking mechanism, and the blocking mechanism can prevent a lifting bucket from deflecting to one side of a lifting support arm, and can stably slide the lifting bucket and the ship-borne boat stored therein downward to the water surface, thereby ensuring the stability of the ship-borne boat being released. Under the action of a locking mechanism, the locking mechanism locks the lifting bucket and the ship-borne boat during the process of the lifting bucket carrying the ship-borne boat descending. The locking mechanism can release the lock between the lifting bucket and the ship-borne boat after the ship-borne boat floats on the water surface, so that the ship-borne boat can be stably placed, and at the same time, the lock between the lifting bucket and the ship-borne boat can be actively released under the action of the locking mechanism, thereby saving the time for releasing the lock and improving the efficiency of placing the ship-borne boat.

Description

Technical Field

[0001] The invention relates to the technical field of marine equipment, in particular to a ship-borne boat retrieval and launching device. Background Art

[0002] The shipboard boat launching and retrieving device is a special equipment used to store, release and recover lifeboats or workboats on ships. According to the different methods of launching and retrieving, the shipboard boat launching and retrieving device is mainly divided into crane type, davit type and tail slide type. The crane type and davit type have slow launching and retrieving speed, troublesome operation and insufficient safety, while the tail slide type has the advantages of fast launching and retrieving speed, safety and reliability, and is very suitable for ships performing special tasks;

[0003] Among them, the davit is a special lifting equipment carried by the ship for lifting and lowering small boats. According to the different ways of raising and lowering the boats, it can be divided into three types: gravity type, swing-out type and roll-out type. The relevant specifications have strict regulations on the performance of the davit, including: the ability to quickly lower the boat to the water surface and retract it inboard, the strength of the davit and its accessories, and when the ship is listed 15 degrees to either side and 5 degrees to either side and the speed is 5 knots, it can meet the requirements that the small boat can be turned outboard when carrying all equipment and two crew members, and then fully loaded with all passengers safely landed on the horizontal cables of the davit on the water surface.

[0004] At present, the retrieval and deployment of ship-borne boats are mostly carried out by means of steel cables and the like. After the ship-borne boat is placed on the water surface, the ship-borne boat needs to be unlocked. This unlocking process is likely to waste a lot of time and is difficult to meet the demand for rapid placement of the ship-borne boat. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a ship-borne boat retrieval and launching device.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A shipborne boat launching and retracting device comprises: a shipborne support, a lifting arm, an extension arm, a lifting bucket and a retracting and retracting drive mechanism, wherein the shipborne support can be fixed to the ship, the bottom end of the lifting arm is fixed to the shipborne support, and one end of the extension arm is fixed to the top end of the lifting arm; the end of the extension arm away from the lifting arm is a movable end, the retracting and retracting drive mechanism is arranged at the movable end of the extension arm, and the lifting bucket can be hoisted below the movable end of the extension arm by the retracting and retracting drive mechanism; the movable end of the extension arm can be extended to drive the retracting and retracting drive mechanism and the lifting bucket to move toward the end away from the lifting arm; A blocking mechanism is provided on one side of the movable end close to the lifting arm, and the blocking mechanism can prevent the lifting bucket from deflecting to one side of the lifting arm; the lifting bucket is connected to the retractable driving mechanism through a plurality of lifting steel cables, and the retractable driving mechanism can simultaneously retract and release the lifting steel cables to drive the distance adjustment between the lifting bucket and the movable end of the extension arm; the lifting bucket is used to hold the ship-borne boat, and a locking mechanism is provided inside the lifting bucket, and the locking mechanism can lock the lifting bucket and the ship-borne boat during the process of the lifting bucket carrying the ship-borne boat descending, and the locking mechanism can release the lock between the lifting bucket and the ship-borne boat after the ship-borne boat floats on the water.

[0008] Furthermore, the bottom plate of the lifting bucket is provided with a plurality of penetration grooves, and the locking mechanism includes a plurality of locking units, and the locking units are arranged on one side of the bottom plate located inside the lifting bucket; in the process that the water surface passes through each of the penetration grooves and gradually submerges the bottom plate, each of the locking units can gradually release the lock between the lifting bucket and the ship-borne boat.

[0009] Furthermore, each of the locking units includes a fixed column and a buoyancy locking member, wherein a sliding track groove is provided inside the fixed column; a limited track ball is provided in the center of the buoyancy locking member, a buoyancy plate is provided at one end of the buoyancy locking member, and a locking clamp is provided at one end of the buoyancy locking member away from the buoyancy plate. The limited track ball is embedded in the sliding track groove, the buoyancy plate can float on the water surface, and the limited track ball can slide inside the sliding track groove when the buoyancy locking member is away from the bottom plate.

[0010] Furthermore, the sliding track groove includes an ascending track, a rotating track and a lifting track from bottom to top, and when the limiting track ball slides along the inside of the sliding track groove, it passes through the ascending track, the rotating track and the lifting track in sequence.

[0011] Furthermore, when the limiting track ball passes through the ascending track, the buoyancy locking piece rises due to the buoyancy; when the limiting track ball passes through the rotating track, the buoyancy plates and the locking claws at both ends of the buoyancy locking piece can rotate around the limiting track ball, and the locking claws and the ship-borne boat are released; when the limiting track ball passes through the lifting track, the buoyancy locking piece rises due to the buoyancy, providing space for the ship-borne boat to separate from the lifting bucket.

[0012] Furthermore, the retractable and retractable driving mechanism includes a plurality of reeling rollers and a plurality of guide pulleys, and one end of each lifting steel cable away from the lifting bucket can respectively bypass a plurality of guide pulleys and be wound around the outside of the reeling roller, and the synchronous rotation of each reeling roller can simultaneously retract and retract each lifting steel cable.

[0013] Furthermore, the blocking mechanism includes a mounting hanger, and the mounting hanger is provided with a plurality of blocking units in sequence from top to bottom, each blocking unit includes a blocking plate and a blocking spring, and each of the blocking plates is fixedly connected to the mounting hanger through the blocking spring; inside each of the blocking units from top to bottom, the maximum elastic deformation distance of the blocking spring is successively reduced.

[0014] Furthermore, the extension arm includes a plurality of telescopic arms, and among two adjacent telescopic arms, the telescopic arm farther away from the lifting arm can be retracted into the interior of the telescopic arm closer to the lifting arm.

[0015] Furthermore, the shipborne support includes a fixed layer and a stabilizing layer, the fixed layer and the stabilizing layer are fixedly connected by a stabilizing column, and a stabilizing groove is provided in the center of the stabilizing layer; the lifting arm is rotatably connected to the fixed layer, the lifting arm passes through the stabilizing groove, and the lifting arm is elastically connected to the inner wall of the stabilizing groove.

[0016] Furthermore, a stabilizing ring is provided at the bottom end of the lifting arm, and a plurality of stabilizing springs are provided on the outside of the stabilizing ring. The stabilizing spring is fixed between one end away from the stabilizing ring and the inner wall of the stabilizing groove, and each of the stabilizing springs can absorb vibrations transmitted from the ship-borne support.

[0017] Compared with the prior art, the present invention provides a ship-borne boat launching and retracting device, which has the following beneficial effects:

[0018] 1. This ship-borne boat retrieval and release device, since the lifting bucket is connected to the retrieval and release driving mechanism through a plurality of lifting steel cables, the retrieval and release driving mechanism can simultaneously retract and release the lifting steel cables, and at the same time, with the assistance of the blocking mechanism, the blocking mechanism can prevent the lifting bucket from deflecting to one side of the lifting support arm, and can stably slide the lifting bucket and the ship-borne boat stored therein downward to the water surface, thereby ensuring the stability of the ship-borne boat release, and under the action of the locking mechanism, the locking mechanism locks the lifting bucket and the ship-borne boat during the process of the lifting bucket carrying the ship-borne boat descending, and the locking mechanism can release the lock between the lifting bucket and the ship-borne boat after the ship-borne boat floats on the water surface, so that the ship-borne boat can be stably placed, and the lock between the lifting bucket and the ship-borne boat can be actively released under the action of the locking mechanism, thereby saving the time for releasing the lock and improving the efficiency of placing the ship-borne boat.

[0019] 2. This ship-borne boat launching and retracting device, through the arrangement of the buoyancy plate of the buoyancy locking member, and in the process of the weight of the hoisting bucket gradually sinking into the water, due to the buoyancy of the buoyancy plate, the buoyancy plate has the power on the water surface to provide the entire buoyancy locking member away from the bottom plate of the hoisting bucket; then, in the process of the buoyancy locking member sliding upward under the restriction of the sliding track groove, the buoyancy plate is always affected by the buoyancy of the water: when the limit track ball passes through the rising track, the buoyancy locking member is vertically raised by the buoyancy; when the limit track ball passes through the rotating track, the buoyancy locking member is vertically raised by the buoyancy; The buoyancy plates and locking claws at both ends of the locking piece can rotate around the limiting track ball, so that the locking claws no longer hold the ship-borne boat, thereby preliminarily releasing the lock between the locking claws and the ship-borne boat; when the limiting track ball passes through the lifting track, the buoyancy locking piece continues to rise vertically due to the buoyancy, providing space for the ship-borne boat to separate from the lifting bucket, thereby allowing the ship-borne boat to separate from the lifting bucket, thereby achieving the purpose of automatic unlocking between the ship-borne boat and the lifting bucket, which can effectively save the time for unlocking and improve the efficiency of placing the ship-borne boat.

[0020] 3. This ship-borne boat retracting and releasing device, through the setting of the guide pulley, each end of the lifting steel cable away from the lifting bucket can pass through several guide pulleys and be arranged on the outside of the winding roller, and the synchronous rotation of each winding roller can simultaneously retract and release each lifting steel cable, and the wear of the lifting steel cable is effectively reduced through the guiding effect and rotation of the guide pulley, and through the setting of the blocking unit, each blocking unit includes a blocking plate and a blocking spring, and each blocking plate is fixedly connected to the mounting boom through the blocking spring, so that when the lifting steel cable and the lifting bucket are in contact with the blocking plate, the blocking spring can reduce the shaking, and the maximum elastic deformation distance of the blocking spring can be reduced in sequence from the top to the bottom of each blocking unit, so that the distance that the blocking plate can move laterally to the mounting boom is also reduced in sequence, which can effectively prevent the lifting bucket from deflecting to one side of the lifting arm, and ensure that the lifting bucket and the ship-borne boat stored therein are stably slid downward to the water surface.

[0021] 4. This ship-borne boat retrieval and launching device is equipped with a plurality of stabilizing springs on the outside of a stabilizing ring. The end of the stabilizing spring away from the stabilizing ring is fixed to the inner wall of the stabilizing groove, so that the lifting arm and the inner wall of the stabilizing groove are elastically connected. Each stabilizing spring can absorb the vibration transmitted from the ship-borne support, thereby effectively avoiding the influence of the lateral bumps of the water surface on the entire lifting arm, and further reducing the lateral vibration transmitted to the lifting bucket, thereby ensuring that the lifting bucket and the ship-borne boat stored therein are stably slid downward to the water surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the three-dimensional structural schematic diagrams of a ship-borne boat launching and retracting device of the present invention;

[0023] Figure 2 This is a second schematic diagram of the three-dimensional structure of a ship-borne boat launching and retracting device according to the present invention;

[0024] Figure 3 This is one of the partial structural schematic diagrams of a ship-borne boat launching and retracting device of the present invention;

[0025] Figure 4 This is a second partial structural schematic diagram of a ship-borne boat launching and retracting device of the present invention;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of a hoisting bucket of a ship-borne boat retrieval and launching device of the present invention;

[0027] Figure 6 It is a three-dimensional structural schematic diagram of a locking mechanism of a ship-borne boat storage and launching device of the present invention;

[0028] Figure 7 The present invention is a cross-sectional schematic diagram of a locking mechanism of a ship-borne boat storage and launching device.

[0029] In the figure: 1. shipborne support; 11. fixed layer; 12. stabilizing layer; 121. stabilizing groove; 13. stabilizing column; 2. lifting arm; 21. stabilizing ring; 22. stabilizing spring; 3. extending arm; 31. telescopic arm; 4. lifting bucket; 41. lifting cable; 42. bottom plate; 43. penetration groove; 5. retracting and releasing drive mechanism; 51. rewinding roller; 52. guide pulley; 6. blocking mechanism; 61. mounting boom; 62. blocking unit; 621. blocking plate; 622. blocking spring; 7. locking mechanism; 71. locking unit; 711. fixed column; 712. buoyancy locking piece; 7121. limit track ball; 7122. buoyancy plate; 7123. locking claw; 713. sliding track groove; 7131. rising track; 7132. rotating track; 7133. lifting track. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a ship-borne boat launching and retracting device.

[0032] Embodiment 1

[0033] See also Figure 1-Figure 7 A shipborne boat launching and retracting device comprises: a shipborne support 1, a lifting arm 2, an extension arm 3, a hoisting bucket 4 and a retracting and retracting driving mechanism 5, the shipborne support 1 can be fixed to the ship, the bottom end of the lifting arm 2 is fixed to the shipborne support 1, and one end of the extension arm 3 is fixed to the top of the lifting arm 2; the end of the extension arm 3 away from the lifting arm 2 is a movable end, the retracting and retracting driving mechanism 5 is arranged at the movable end of the extension arm 3, and the hoisting bucket 4 can be hoisted below the movable end of the extension arm 3 through the retracting and retracting driving mechanism 5; the movable end of the extension arm 3 can be extended to drive the retracting and retracting driving mechanism 5 and the hoisting bucket 4 to move toward the end away from the lifting arm 2; the extension arm 3 A blocking mechanism 6 is provided on the side of the movable end close to the lifting arm 2, and the blocking mechanism 6 can prevent the lifting bucket 4 from deflecting to one side of the lifting arm 2; the lifting bucket 4 is connected to the retracting and releasing driving mechanism 5 through a plurality of lifting steel cables 41, and the retracting and releasing driving mechanism 5 can simultaneously retract and release the lifting steel cables 41 to drive the adjustment of the distance between the lifting bucket 4 and the movable end of the extension arm 3; the lifting bucket 4 is used to hold the ship-borne boat, and a locking mechanism 7 is provided inside the lifting bucket 4, which can lock the lifting bucket 4 and the ship-borne boat during the descent of the lifting bucket 4 carrying the ship-borne boat, and the locking mechanism 7 can release the lock between the lifting bucket 4 and the ship-borne boat after the ship-borne boat floats on the water.

[0034] The ship-borne boat storage and launching device is installed and fixed on the deck of the ship through a ship-borne support 1. The lifting bucket 4 is used to hold the ship-borne boat. When the ship-borne boat needs to be put into the water, the movable end of the extension arm 3 is first extended to drive the storage and launching drive mechanism 5 and the lifting bucket 4 to move toward the end away from the lifting arm 2, and the storage and launching drive mechanism 5, the blocking mechanism 6 and the lifting bucket 4 arranged at the movable end of the extension arm 3 are extended out of the deck of the ship to above the water surface. Since the lifting bucket 4 is connected to the storage and launching drive mechanism 5 through a plurality of lifting steel cables 41, the storage and launching drive mechanism 5 can simultaneously store and retract the lifting steel cables 41, and at the same time, with the assistance of the blocking mechanism 6, the blocking mechanism 6 can also be used to release the lifting steel cables 41. 6 can prevent the lifting bucket 4 from deflecting to one side of the lifting arm 2, and can stably slide the lifting bucket 4 and the ship-borne boat stored therein downward to the water surface, thereby ensuring the stability of the ship-borne boat being released. Under the action of the locking mechanism 7, the locking mechanism 7 locks the lifting bucket 4 and the ship-borne boat during the process of the lifting bucket 4 carrying the ship-borne boat descending. The locking mechanism 7 can release the lock between the lifting bucket 4 and the ship-borne boat after the ship-borne boat floats on the water surface, so that while the ship-borne boat can be stably placed, the lock between the lifting bucket 4 and the ship-borne boat can be actively released under the action of the locking mechanism 7, thereby saving the time for releasing the lock and improving the efficiency of placing the ship-borne boat.

[0035] The bottom plate 42 of the lifting bucket 4 is provided with a plurality of penetration grooves 43, and the locking mechanism 7 includes a plurality of locking units 71, and the locking units 71 are arranged on one side of the bottom plate 42 located inside the lifting bucket 4; in the process that the water surface passes through each penetration groove 43 and gradually submerges the bottom plate 42, each locking unit 71 can gradually release the lock between the lifting bucket 4 and the ship-borne boat.

[0036] Each locking unit 71 includes a fixed column 711 and a buoyancy locking member 712. A sliding track groove 713 is provided inside the fixed column 711. A limited track ball 7121 is provided in the center of the buoyancy locking member 712. A buoyancy plate 7122 is provided at one end of the buoyancy locking member 712. A locking claw 7123 is provided at one end of the buoyancy locking member 712 away from the buoyancy plate 7122. The limited track ball 7121 is embedded in the sliding track groove 713. The buoyancy plate 7122 can float on the water surface. In the process of the buoyancy locking member 712 moving away from the bottom plate 42, the limited track ball 7121 can slide inside the sliding track groove 713.

[0037] The sliding track groove 713 includes an ascending track 7131, a rotating track 7132 and a lifting track 7133 from bottom to top. When the limiting track ball 7121 slides along the inside of the sliding track groove 713, it passes through the ascending track 7131, the rotating track 7132 and the lifting track 7133 in sequence.

[0038] When the limiting track ball 7121 passes through the ascending track 7131, the buoyancy locking piece 712 rises due to the buoyancy; when the limiting track ball 7121 passes through the rotating track 7132, the buoyancy plates 7122 and locking claws 7123 at both ends of the buoyancy locking piece 712 can rotate around the limiting track ball 7121, and the locking claws 7123 are unlocked from the ship-borne boat; when the limiting track ball 7121 passes through the lifting track 7133, the buoyancy locking piece 712 rises due to the buoyancy, providing space for the ship-borne boat to separate from the lifting bucket 4.

[0039] In specific use, the movable end of the extension arm 3 is extended to drive the retracting and releasing driving mechanism 5 and the lifting bucket 4 to move toward the end away from the lifting arm 2. After the lifting bucket 4 is extended from the deck of the ship to above the water surface, the retracting and releasing driving mechanism 5 can simultaneously retract and release the lifting steel cable 41, gradually moving toward the water surface to prevent the boat from being carried on the ship. After the bottom plate 42 of the lifting bucket 4 contacts the water surface, in the process of the water surface passing through each penetration groove 43 and gradually submerging the bottom plate 42, each locking unit 71 can gradually release the lock between the lifting bucket 4 and the boat on the ship.

[0040] By setting the buoyancy plate 7122 of the buoyancy locking piece 712, and in the process of the weight of the lifting bucket 4 gradually sinking into the water, the buoyancy of the buoyancy plate 7122 makes the buoyancy plate 7122 on the water surface have the power to provide the entire buoyancy locking piece 712 away from the bottom plate 42 of the lifting bucket 4; then, in the process of the buoyancy locking piece 712 sliding upward under the restriction of the sliding track groove 713, the buoyancy plate 7122 is always affected by the buoyancy of the water: when the limiting track ball 7121 passes through the rising track 7131, the buoyancy locking piece 712 is vertically risen by the buoyancy; when the limiting track ball 7121 passes through the rotating track 7132, the buoyancy locking piece 712 is vertically risen by the buoyancy; The buoyancy plates 7122 and locking claws 7123 at both ends of the force locking member 712 can rotate around the limiting track ball 7121, so that the locking claws 7123 no longer clamp the ship-borne boat, thereby preliminarily releasing the lock between the locking claws 7123 and the ship-borne boat; when the limiting track ball 7121 passes through the lifting track 7133, the buoyancy locking member 712 continues to rise vertically due to the buoyancy, providing space for the ship-borne boat to separate from the lifting bucket 4, thereby allowing the ship-borne boat to separate from the lifting bucket 4, thereby achieving the purpose of automatic unlocking between the ship-borne boat and the lifting bucket 4, which can effectively save the time for unlocking and improve the efficiency of placing the ship-borne boat.

[0041] Embodiment 2

[0042] See also Figure 1-Figure 7The difference from the above-mentioned embodiment 1 is that the retractable driving mechanism 5 includes a plurality of reeling rollers 51 and a plurality of guide pulleys 52, and one end of each lifting steel cable 41 away from the lifting bucket 4 can respectively pass around a plurality of guide pulleys 52 and be wound around the outside of the reeling roller 51, and the synchronous rotation of each reeling roller 51 can simultaneously retract and retract each lifting steel cable 41.

[0043] The blocking mechanism 6 includes a mounting hanger 61, and a plurality of blocking units 62 are sequentially arranged on the mounting hanger 61 from top to bottom. Each blocking unit 62 includes a blocking plate 621 and a blocking spring 622. Each blocking plate 621 is fixedly connected to the mounting hanger 61 through the blocking spring 622. Inside each blocking unit 62 from top to bottom, the maximum elastic deformation distance of the blocking spring 622 is successively reduced.

[0044] The extension arm 3 includes a plurality of telescopic arms 31 . Of two adjacent telescopic arms 31 , the telescopic arm 31 away from the lifting arm 2 can be retracted into the inside of the telescopic arm 31 close to the lifting arm 2 .

[0045] When in use, due to the setting of each telescopic arm 31 of the extension arm 3, and the telescopic arm 31 of the two adjacent telescopic arms 31, the telescopic arm 31 away from the lifting arm 2 can be retracted into the inside of the telescopic arm 31 close to the lifting arm 2. The specific telescopic structure of each telescopic arm 31 of the extension arm 3 is a telescopic scheme of a common telescopic arm in the prior art, which will not be repeated here. Through the setting of each telescopic arm 31 of the extension arm 3, the retractable driving mechanism 5, the blocking mechanism 6 and the lifting bucket 4 arranged at the movable end of the extension arm 3 can be effectively extended from the deck of the ship to above the water surface, so that when not in use, the windward area can be reduced by telescoping, the stability of the movable end of the extension arm 3 can be improved, and the lateral pulling force on the lifting arm 2 can be effectively reduced; and when in use, through the setting of the guide pulley 52, the end of each lifting cable 41 away from the lifting bucket 4 can respectively bypass a plurality of guide pulleys 52 and be wound around On the outside of the winding roller 51, each winding roller 51 rotates synchronously to simultaneously reel in and release each lifting cable 41. Through the guiding effect and rotation of the guide pulley 52, the wear of the lifting cable 41 is effectively reduced. Through the setting of the blocking unit 62, each blocking unit 62 includes a blocking plate 621 and a blocking spring 622. Each blocking plate 621 is fixedly connected to the mounting boom 61 through the blocking spring 622, so that when the lifting cable 41 and the lifting bucket 4 are in contact with the blocking plate 621, the blocking spring 622 can reduce the shaking, and the maximum elastic deformation distance of the blocking spring 622 can be reduced from top to bottom in each blocking unit 62, so that the distance that the blocking plate 621 can move horizontally to the mounting boom 61 is also reduced, which can effectively prevent the lifting bucket 4 from deflecting to one side of the lifting arm 2, and ensure that the lifting bucket 4 and the ship-borne boat stored therein are stably slid downward to the water surface.

[0046] Embodiment 3

[0047] See also Figure 1-Figure 7 The difference from the above-mentioned embodiment 2 is that the shipborne support 1 includes a fixed layer 11 and a stabilizing layer 12, the fixed layer 11 and the stabilizing layer 12 are fixedly connected by a stabilizing column 13, and a stabilizing groove 121 is opened in the center of the stabilizing layer 12; the lifting arm 2 is rotatably connected to the fixed layer 11, the lifting arm 2 passes through the stabilizing groove 121, and the lifting arm 2 is elastically connected to the inner wall of the stabilizing groove 121.

[0048] A stabilizing ring 21 is provided at the bottom end of the lifting arm 2, and a plurality of stabilizing springs 22 are provided on the outside of the stabilizing ring 21. One end of the stabilizing spring 22 away from the stabilizing ring 21 is fixed to the inner wall of the stabilizing groove 121, and each stabilizing spring 22 can absorb the vibration transmitted from the ship-borne support 1.

[0049] Therefore, when in use, a plurality of stabilizing springs 22 are arranged on the outside of the stabilizing ring 21, and one end of the stabilizing spring 22 away from the stabilizing ring 21 is fixed to the inner wall of the stabilizing groove 121, so that the lifting arm 2 and the inner wall of the stabilizing groove 121 are elastically connected. Each stabilizing spring 22 can absorb the vibration transmitted from the ship-borne support 1, thereby effectively avoiding the influence of the lateral bumps of the water surface on the entire lifting arm 2, and further reducing the lateral vibration transmitted to the lifting bucket 4, thereby ensuring that the lifting bucket 4 and the ship-borne boat stored therein are stably slid down to the water surface.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ship-borne boat launching and retracting device, characterized in that: include: A ship-borne support, a lifting support arm, an extension support arm, a hoisting bucket and a retracting and releasing driving mechanism, wherein the ship-borne support can be fixed to the ship, the bottom end of the lifting support arm is fixed to the ship-borne support, and one end of the extension support arm is fixed to the top end of the lifting support arm; One end of the extension arm away from the lifting arm is a movable end, the retractable drive mechanism is arranged at the movable end of the extension arm, and the hoisting bucket can be hoisted below the movable end of the extension arm through the retractable drive mechanism; The movable end of the extension arm can be extended to drive the retractable drive mechanism and the lifting bucket to move toward an end away from the lifting arm; A blocking mechanism is provided on one side of the movable end of the extension arm close to the lifting arm, and the blocking mechanism can prevent the hoisting bucket from deflecting to one side of the lifting arm; The hoisting bucket is connected to the retractable driving mechanism through a plurality of hoisting steel cables, and the retractable driving mechanism can simultaneously retract and release the hoisting steel cables to drive the distance adjustment between the hoisting bucket and the movable end of the extension arm; The lifting bucket is used to hold the ship-borne boat, and a locking mechanism is arranged inside the lifting bucket, which can lock the lifting bucket and the ship-borne boat during the process of the lifting bucket carrying the ship-borne boat descending, and the locking mechanism can release the lock between the lifting bucket and the ship-borne boat after the ship-borne boat floats on the water surface; The bottom plate of the hoisting bucket is provided with a plurality of penetration grooves, and the locking mechanism comprises a plurality of locking units, and the locking units are arranged on one side of the bottom plate located inside the hoisting bucket; In the process that the water surface passes through each of the penetration grooves and gradually submerges the bottom plate, each of the locking units can gradually release the lock between the lifting bucket and the boat on the ship; Each of the locking units comprises a fixing column and a buoyancy locking member, and a sliding track groove is provided inside the fixing column; A limited track ball is arranged in the center of the buoyancy locking member, a buoyancy plate is arranged at one end of the buoyancy locking member, and a locking clamp is arranged at one end of the buoyancy locking member away from the buoyancy plate; The limiting track ball is embedded in the sliding track groove, the buoyancy plate can float on the water surface, and when the buoyancy locking member is separated from the bottom plate, the limiting track ball can slide in the sliding track groove; The sliding track groove includes an ascending track, a rotating track and a lifting track from bottom to top. When the limiting track ball slides along the inside of the sliding track groove, it passes through the ascending track, the rotating track and the lifting track in sequence. When the position-limiting track ball passes through the ascending track, the buoyancy locking member rises due to the buoyancy; When the position-limiting track ball passes through the rotating track, the buoyancy plates and the locking claws at both ends of the buoyancy locking member can rotate around the position-limiting track ball, and the locking claws are unlocked from the ship-borne boat; When the limiting track ball passes through the lifting track, the buoyancy locking member rises due to the buoyancy, providing a space for the ship-borne boat to separate from the lifting bucket.

2. A ship-borne boat launching and retracting device according to claim 1, characterized in that: The retractable and retractable driving mechanism includes a plurality of reeling rollers and a plurality of guide pulleys. One end of each lifting steel cable away from the lifting bucket can pass around a plurality of guide pulleys and be wound around the outside of the reeling roller. The synchronous rotation of the reeling rollers can simultaneously retract and retract the lifting steel cables.

3. The ship-borne boat launching and retracting device according to claim 1, characterized in that: The blocking mechanism comprises a mounting hanger, and the mounting hanger is provided with a plurality of blocking units in sequence from top to bottom, each blocking unit comprises a blocking plate and a blocking spring, and each blocking plate is fixedly connected to the mounting hanger through the blocking spring; Inside each of the blocking units from top to bottom, the maximum elastic deformation distance of the blocking spring decreases successively.

4. The ship-borne boat launching and retracting device according to claim 1, characterized in that: The extension arm includes a plurality of telescopic arms. Among two adjacent telescopic arms, the telescopic arm away from the lifting arm can be retracted into the inside of the telescopic arm close to the lifting arm.

5. The ship-borne boat launching and retracting device according to claim 1, characterized in that: The shipborne support comprises a fixed layer and a stabilizing layer, the fixed layer and the stabilizing layer are fixedly connected via a stabilizing column, and a stabilizing groove is provided in the center of the stabilizing layer; The lifting arm is rotatably connected to the fixed layer, the lifting arm passes through the stabilizing groove, and the lifting arm is elastically connected to the inner wall of the stabilizing groove.

6. A ship-borne boat launching and retracting device according to claim 5, characterized in that: A stabilizing ring is arranged at the bottom end of the lifting arm, and a plurality of stabilizing springs are arranged outside the stabilizing ring. The stabilizing spring is fixed between one end away from the stabilizing ring and the inner wall of the stabilizing groove, and each of the stabilizing springs can absorb vibrations transmitted from the ship-borne support.

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