Telescopic boat hanging frame and assembly

Abstract

The utility model relates to the technical field of boat hanging frames, in particular to a telescopic boat hanging frame which comprises two supports and two cross beams, the two cross beams are hinged to the supports respectively, the two cross beams are fixedly connected with triangular blocks respectively, inclined sliding grooves are formed between the triangular blocks and the supports, and the two cross beams are hinged to the supports respectively. A tray is arranged between the two supports, the tray is connected between the two sliding grooves in a sliding mode, sleeves are fixedly connected to the supports, push rods are connected into the sleeves in a sliding mode, and the ends, away from the sleeves, of the push rods are fixedly connected with the tray; the push rod can push the tray to obliquely slide upwards in the obliquely-arranged sliding groove, the ship body can be supported along with upward movement of the tray, at the moment, the ship body does not have pulling force on the pull rope any more, and therefore damage caused by the fact that the pull rope pulls the ship body for a long time can be automatically avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of boat davits, in particular to a telescopic boat davit and an assembly. Background Art

[0002] A davit is a specialized shipboard device used to lift and unload lifeboats or workboats. It's typically located on either side of the ship's deck, normally positioned inside the side. When in use, it extends overboard to lift or lower the boat. Depending on how the davit moves the boat from inside to outside, there are three types: swing-out, tilt-over, and gravity-operated.

[0003] In the prior art, when a boat is hoisted by a davit, the boat will swing with the wind, thereby increasing the tension of the hull on the rope. At the same time, the davit does not have a supporting structure for the hull, resulting in the hull always being hoisted by the rope, which causes great tension and wear on the rope for a long time. Utility Model Content

[0004] The purpose of the present utility model is to solve the following shortcomings in the prior art: when a boat is lifted by a davit in the prior art, the boat will swing with the wind, thereby increasing the tension of the hull on the rope; at the same time, the davit does not have a supporting structure for the hull, resulting in the hull always being lifted by the rope, which causes large tension and wear on the rope for a long time. A telescopic davit and assembly are proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A telescopic davit comprises two brackets and a crossbeam, wherein the two crossbeams are respectively hinged on the brackets, the two crossbeams are respectively fixedly connected to a triangular block, an inclined slide groove is provided between the triangular block and the bracket, a tray is provided between the two brackets, the tray is slidably connected between the two slide grooves, a sleeve is fixedly connected to the bracket, a push rod is slidably connected in the sleeve, and the push rod is fixedly connected to the tray at one end away from the sleeve;

[0007] A buffer assembly is installed between the two brackets, and the buffer assembly includes a roller, a hinge block, an extrusion rod, a ring, a movable plug, and a cylinder. A through groove is provided on the crossbeam, and the two ends of the roller slide in the through groove respectively. The two hinge blocks are rotatably connected to the two ends of the roller respectively, and the cylinder is fixedly connected to the crossbeam. One end of the extrusion rod is slidably connected to the cylinder through the movable plug, and the other end of the extrusion rod is rotatably connected to the roller through the ring, and a circular hole is provided on the movable plug.

[0008] Preferably, the buffer assembly also includes a sealing plug, a closing cylinder, and a connecting tube. The closing cylinder is fixedly connected to one end of the cylinder, the sealing plug is slidably connected in the closing cylinder, the end of the extrusion rod away from the ring passes through one side of the closing cylinder and is fixedly connected to the sealing plug, and the connecting tube is fixedly connected between the closing cylinder and the sleeve.

[0009] Preferably, a protective cavity is slidably connected between the two cross beams, the protective cavity is rotatably connected to the roller, and a hydraulic rod is hinged between the two cross beams and the bracket.

[0010] Preferably, a fixing plate is fixedly connected between the two cross beams, and a spring is fixedly connected between the fixing plate and the protective cavity.

[0011] Preferably, a limiting cylinder is fixedly connected to the hinge block, a pull rope is slidably connected in the limiting cylinder, and one end of the pull rope is fixed to the roller.

[0012] A telescopic davit assembly comprises a bottom plate and the telescopic davit, wherein a plurality of vertical plates are fixedly connected to the bottom plate, and a bracket is fixedly connected to the plurality of vertical plates.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. When the beam is tilted, the roller and the protective cavity slide on the beam under the gravity of the hull. When the roller slides in the through groove on the beam, it can push the moving plug to slide in the cylinder through the extrusion rod, thereby slowing down the downward movement of the roller and the hull, providing a buffering force on the hull, and also reducing the tension on the rope when the hull swings with the wind.

[0015] 2. As the gas in the sleeve increases, the push rod can be pushed to move. The push rod can push the tray to slide obliquely upward in the inclined slide groove. As the tray moves upward, the hull can be supported and lifted. At this time, the hull no longer has a pulling force on the pull rope, thereby automatically avoiding the pull rope from pulling the hull for a long time and causing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front structural schematic diagram of a telescopic davit proposed in the utility model;

[0017] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0018] Figure 3 This is a schematic diagram of the internal structure of a cylinder of a telescopic davit proposed in the present invention;

[0019] Figure 4The utility model is a schematic diagram of a roller structure of a telescopic davit.

[0020] In the figure: 1 bracket, 2 sleeve, 3 triangle block, 4 hydraulic rod, 5 fixed plate, 6 spring, 7 extrusion rod, 8 protective chamber, 9 tray, 10 push rod, 11 crossbeam, 12 roller, 13 hinge block, 14 limit cylinder, 15 pull rope, 16 ring, 17 movable plug, 18 cylinder, 19 sealing plug, 20 closing cylinder, 21 connecting pipe, 22 bottom plate, 23 vertical plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] The terms "upper", "lower", "left", "right", "middle" and "one" used in the present invention are only for the convenience of description and are not intended to limit the scope of application of the present invention. Changes or adjustments to their relative relationships shall be deemed to be within the scope of application of the present invention without substantially changing the technical content.

[0023] Reference Figures 1-4 A telescopic davit comprises two brackets 1 and a crossbeam 11. The two crossbeams 11 are respectively hinged on the brackets 1. The two crossbeams 11 are respectively fixedly connected with triangular blocks 3. An inclined slide groove is provided between the triangular block 3 and the bracket 1. A support plate 9 is provided between the two brackets 1. The tray 9 is slidably connected between the two slide grooves. The tray 9 can slide upward at an angle in the slide groove. A sleeve 2 is fixedly connected to the bracket 1. A push rod 10 is slidably connected in the sleeve 2. The end of the push rod 10 away from the sleeve 2 is fixedly connected to the tray 9. The tray 9 is provided with a plurality of grooves, which are high in the middle and low on both sides. When the boat is placed on the tray 9, the water on the hull will be discharged to the outside through the grooves, without increasing the supporting force of the tray 9.

[0024] A buffer assembly is installed between the two brackets 1, and the buffer assembly includes a roller 12, a hinge block 13, an extrusion rod 7, a ring 16, a movable plug 17, and a cylinder 18. A through groove is provided on the crossbeam 11, and the two ends of the roller 12 slide in the through groove respectively. The roller 12 can slide and rotate in the through groove. The two hinge blocks 13 are rotatably connected to the two ends of the roller 12, and the cylinder 18 is fixedly connected to the crossbeam 11. One end of the extrusion rod 7 is slidably connected to the cylinder 18 through the movable plug 17, and the other end of the extrusion rod 7 is rotatably connected to the roller 12 through the ring 16. A circular hole is provided on the movable plug 17. The buffer assembly also includes a sealing plug 19 and a sealing cylinder 20. Connecting tube 21. The closing tube 20 is fixedly connected to one end of the cylinder 18. The end of the closing tube 20 close to the cylinder 18 is not in a sealed state. The sealing plug 19 is slidably connected in the closing tube 20. The end of the extrusion rod 7 away from the ring 16 passes through one side of the closing tube 20 and is fixedly connected to the sealing plug 19. The connecting tube 21 is fixedly connected between the closing tube 20 and the sleeve 2. A protective cavity 8 is slidably connected between the two beams 11. The protective cavity 8 is rotatably connected to the roller 12. The protective cavity 8 is used to protect the roller 12 and the pull rope 15 wrapped around the roller 12. A hydraulic rod 4 is hinged between the two beams 11 and the bracket 1.

[0025] A fixed plate 5 is fixedly connected between the two cross beams 11, a spring 6 is fixedly connected between the fixed plate 5 and the protective cavity 8, a limiting cylinder 14 is fixedly connected to the hinge block 13, a pull rope 15 is slidably connected in the limiting cylinder 14, one end of the pull rope 15 is fixed on the roller 12, the telescopic davit assembly includes a base plate 22 and a telescopic davit, a plurality of vertical plates 23 are fixedly connected to the base plate 22, and the bracket 1 is fixedly connected to the plurality of vertical plates 23.

[0026] In the present invention, when in use, first pull the draw rope 15 away from one end of the roller 12 and fix it to the hull, then connect one end of the roller 12 to the external servo motor, and drive the roller 12 to rotate under the drive of the servo motor. The roller 12 can wrap the draw rope 15 and pull the hull up, while driving the hydraulic rod 4 to contract and pull one end of the beam 11 downward, so that the two beams 11 are flipped counterclockwise to an inclined state, thereby cooperating with the pulling force of the draw rope 15 to pull the hull into the air. When the beam 11 is in an inclined state, the roller 12 and the protective cavity 8 slide on the beam 11 under the gravity of the hull and compress the spring 6. When the roller 12 slides in the through groove on the beam 11, it can push the movable plug 17 to slide in the cylinder 18 through the extrusion rod 7. Since the cylinder 18 is filled with liquid, when the movable plug 17 slides in the cylinder 18, the liquid on one side of the movable plug 17 will flow to the other side through the circular hole. Since the diameter of the circular hole is small, the speed of the liquid flow is slow, thereby slowing down the downward movement time of the roller 12 and the hull, and having a buffering force on the hull. When the hull swings with the wind, it also slows down the pulling force on the pull rope 15. At the same time, when the hydraulic rod 4 is driven to extend and push the beam 11 to a horizontal state, the roller 12 and the hull will reset and move under the elastic force of the spring 6.

[0027] When the hull and the roller 12 move downward and push the extrusion rod 7 to move, the extrusion rod 7 can push the sealing plug 19 to slide in the sealing tube 20, and the sealing plug 19 can squeeze the gas in the sealing tube 20 and transmit it to the sleeve 2 through the connecting pipe 21. As the gas in the sleeve 2 increases, it can push the push rod 10 to move, and the push rod 10 can push the tray 9 to slide obliquely upward in the inclined slide groove. As the tray 9 moves upward, it can support and lift the hull. At this time, the hull no longer has a pulling force on the pull rope 15, thereby automatically avoiding the pull rope 15 from pulling the hull for a long time and causing damage.

[0028] In the present invention, unless otherwise clearly specified or limited, the terms “installed”, “connected”, “connected”, “fixed” and the like should be understood in a broad sense.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A telescopic davit, comprising two brackets (1) and a crossbeam (11), characterized in that: The two crossbeams (11) are respectively hinged on the bracket (1), and the two crossbeams (11) are respectively fixedly connected with a triangular block (3), and an inclined sliding groove is provided between the triangular block (3) and the bracket (1). A tray (9) is provided between the two brackets (1), and the tray (9) is slidably connected between the two sliding grooves. A sleeve (2) is fixedly connected to the bracket (1), and a push rod (10) is slidably connected in the sleeve (2), and the push rod (10) is fixedly connected to the tray (9) at one end away from the sleeve (2); A buffer assembly is installed between the two brackets (1), and the buffer assembly includes a roller (12), a hinge block (13), an extrusion rod (7), a ring (16), a movable plug (17), and a cylinder (18). A through groove is provided on the crossbeam (11), and the two ends of the roller (12) slide in the through groove respectively. The two hinge blocks (13) are rotatably connected to the two ends of the roller (12), and the cylinder (18) is fixedly connected in the crossbeam (11). One end of the extrusion rod (7) is slidably connected in the cylinder (18) through the movable plug (17), and the other end of the extrusion rod (7) is rotatably connected to the roller (12) through the ring (16). A circular hole is provided in the movable plug (17).

2. A telescopic davit according to claim 1, characterized in that The buffer assembly further comprises a sealing plug (19), a closing cylinder (20), and a connecting pipe (21), wherein the closing cylinder (20) is fixedly connected to one end of the cylinder (18), and the sealing plug (19) is slidably connected in the closing cylinder (20), and the end of the extrusion rod (7) away from the ring (16) passes through one side of the closing cylinder (20) and is fixedly connected to the sealing plug (19), and the connecting pipe (21) is fixedly connected between the closing cylinder (20) and the sleeve (2).

3. The telescopic davit according to claim 1, characterized in that: A protective cavity (8) is slidably connected between the two cross beams (11), the protective cavity (8) is rotatably connected to the roller (12), and a hydraulic rod (4) is hinged between the two cross beams (11) and the bracket (1).

4. The telescopic davit according to claim 3, characterized in that: A fixing plate (5) is fixedly connected between the two cross beams (11), and a spring (6) is fixedly connected between the fixing plate (5) and the protective cavity (8).

5. The telescopic davit according to claim 1, characterized in that: A limiting cylinder (14) is fixedly connected to the hinge block (13), a pull rope (15) is slidably connected inside the limiting cylinder (14), and one end of the pull rope (15) is fixed to the rotating roller (12).

6. A telescopic davit assembly, characterized in that: The telescopic davit assembly comprises a bottom plate (22) and the telescopic davit according to any one of claims 1 to 5, wherein a plurality of vertical plates (23) are fixedly connected to the bottom plate (22), and the bracket (1) is fixedly connected to the plurality of vertical plates (23).

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