Lifting device suitable for offshore supply

Abstract

The utility model discloses a hoisting device suitable for offshore supply. The hoisting device comprises a frame, a transmission mechanism and a limiting mechanism, a top plate is arranged on the top surface of the frame; a bottom plate is arranged on the bottom surface of the frame, and a limiting mark is arranged on the bottom plate; the transmission mechanism comprises a first transmission mechanism and a second transmission mechanism; the movable end of the first transmission mechanism slidably penetrates through the top plate and is connected with a second transmission mechanism located in the frame. The limiting mechanism is connected with the second transmission mechanism, and the first transmission mechanism drives the second transmission mechanism to move, so that the limiting mechanism extends or retracts within the range indicated by the limiting mark. According to the technical scheme, through the arrangement of the transmission mechanism and the limiting mechanism, the transmission mechanism is used for driving the limiting mechanism to press the goods in the hoisting and transporting process, so that the goods are limited, the goods in the frame are kept stable in the hoisting and transporting process, and the hoisting efficiency is improved. And the goods are prevented from sliding and falling off from the frame in the hoisting process.

Description

Technical Field

[0001] The utility model relates to the technical field of ship lifting, in particular to a lifting device suitable for marine replenishment. Background Art

[0002] Marine replenishment refers to a marine operation that uses various replenishment equipment to replenish ships at sea. It is usually carried out by using supply ships to replenish ships sailing and operating at sea, thereby supplying the ships with various items required for normal duty.

[0003] Currently, the main mode of transportation for offshore replenishment is lifting and transportation via frames. In the traditional frame lifting process, in order to limit the movement range of the goods within the frame, before the lifting is implemented, the space within the frame is generally required to be filled with goods or filled with other materials. Utility Model Content

[0004] In view of this, the utility model provides a lifting device suitable for marine replenishment, which utilizes the cooperation of a transmission mechanism and a lifting mechanism so that a limiting mechanism restricts the cargo in the frame to prevent the cargo from sliding during the lifting process.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lifting device suitable for offshore replenishment, comprising: a frame, a transmission mechanism and a limiting mechanism;

[0007] The top surface of the frame is provided with a top plate; the bottom surface of the frame is provided with a bottom plate, and a limit mark is provided on the bottom plate;

[0008] The transmission mechanism comprises: a first transmission mechanism and a second transmission mechanism; the movable end of the first transmission mechanism can slide through the top plate and be connected to the second transmission mechanism located in the frame;

[0009] The limiting mechanism is connected to the second transmission mechanism, and the first transmission mechanism drives the second transmission mechanism to move, so that the limiting mechanism extends or contracts within the range indicated by the limiting mark.

[0010] Preferably, the second transmission mechanism comprises: a transmission connecting rod and a gear;

[0011] One end of the transmission connecting rod is connected to the movable end of the first transmission mechanism, and the other end is connected to the gear;

[0012] The limiting mechanism comprises: a rack, a limiting plate, a guide rod fixing column and a guide rod, the rack and the gear are meshed with each other, and the axial direction of the rack is perpendicular to the width direction of the limiting plate;

[0013] One end of the guide rod fixing column is fixedly connected to the inner wall of the top plate, and the other end is connected to the guide rod; the setting direction of the guide rod is parallel to the moving direction of the limit plate, and the rack has an axial through hole, and the axial through hole is slidably sleeved on the guide rod;

[0014] When the first transmission mechanism slides upward, it can drive the transmission connecting rod to move upward, so that the gear rotates, so that the rack drives the limit plate to move within the range indicated by the limit mark.

[0015] Preferably, the second transmission mechanism further comprises: a movable connecting rod and a gear connecting rod;

[0016] The transmission connecting rod is connected to the gear through the movable connecting rod and the gear connecting rod in sequence;

[0017] Among them, the transmission connecting rod and the movable connecting rod are connected in a hinged manner, the movable connecting rod and the gear connecting rod are connected in a hinged manner, and the gear connecting rod and the gear are connected in a hinged manner.

[0018] Preferably, the second transmission mechanism further comprises: a gear fixing column;

[0019] The first end of the gear fixing column is fixed to the inner wall of the top plate; the connection between the gear connecting rod and the gear is rotatably connected to the second end of the gear fixing column.

[0020] Preferably, the limit plate comprises: an upper limit plate, a lower limit plate, a latch structure and a hinge;

[0021] The upper limit plate is connected to the rack;

[0022] The upper limit plate and the lower limit plate are connected via the latch structure and the hinge, and the latch structure is staggered with the hinge arrangement.

[0023] Preferably, the limiting plate further comprises: a pulley;

[0024] The top end of the upper limit plate is connected to the rack, the bottom end of the upper limit plate is connected to the top end of the lower limit plate through the latch structure and the hinge, and the bottom end of the lower limit plate is provided with the pulley that can slide relative to the bottom surface of the frame.

[0025] Preferably, the first transmission mechanism comprises: a lifting plate and a stretching rod;

[0026] The first end of the stretching rod is connected to the lifting plate, and the second end of the stretching rod can slide through the top plate and is connected to a second transmission mechanism located in the frame.

[0027] Preferably, the first transmission mechanism further comprises: a fixing sleeve and a buffer spring;

[0028] The top plate is provided with a top through hole, and the second end of the stretching rod can slide through the top through hole; the fixing sleeve is sleeved on the upper part of the stretching rod and is located above the top plate; the buffer spring is sleeved on the lower part of the stretching rod and is located below the top plate;

[0029] Wherein, the radius of the fixing sleeve and the radius of the buffer spring are both greater than the radius of the top through hole.

[0030] Preferably, it also includes: four pull ropes;

[0031] The top through hole is arranged in the middle part of the top plate, the first end of the stretching rod is connected to the lifting plate, and the second end of the stretching rod can slide through the top through hole and be connected to the second transmission mechanism located in the frame;

[0032] The lifting plate is respectively connected to the four corners of the top of the frame through the four pull ropes.

[0033] Preferably, a thickening layer is provided in the middle portion of the top plate.

[0034] It can be seen from the above technical solutions that the utility model provides a lifting device suitable for marine replenishment. In this technical solution, through the arrangement of the transmission mechanism and the limiting mechanism, the transmission mechanism is used to drive the limiting mechanism to press the cargo during the lifting and transportation process, so as to limit the cargo, so that during the lifting process, the cargo located in the frame remains stable, and the cargo is prevented from sliding or falling on the frame during the lifting process, thereby achieving the purpose of lifting the cargo quickly and safely. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 A first axonometric view of a lifting device provided in an embodiment of the utility model;

[0037] Figure 2 A first axonometric view of the frame of the lifting device provided by the embodiment of the utility model;

[0038] Figure 3 A second axonometric view of the frame of the lifting device provided by the embodiment of the utility model;

[0039] Figure 4 A top view of the bottom plate of the lifting device provided by the embodiment of the utility model;

[0040] Figure 5 A schematic diagram of the structure of the transmission mechanism provided by the embodiment of the utility model;

[0041] Figure 6 A schematic diagram of the structure of a first transmission mechanism provided in an embodiment of the utility model;

[0042] Figure 7 A schematic diagram of the structure of a second transmission mechanism provided in an embodiment of the utility model;

[0043] Figure 8 A schematic diagram of the structure of the frame and the transmission mechanism provided in the embodiment of the utility model;

[0044] Fig. 9 A front view of a limiting mechanism provided in an embodiment of the utility model;

[0045] Fig.10 A side view of a limiting mechanism provided in an embodiment of the utility model;

[0046] Fig.11 A second axonometric view of the lifting device provided by the embodiment of the utility model;

[0047] Fig.12 A side view of a lifting device provided in an embodiment of the utility model.

[0048] Among them, 0 is the top plate, 1 is the thickening layer, 2 is the frame column, 3 is the bottom plate, 4 is the pulley guide rail, 5 is the frame lifting ear, 6 is the inner movable boundary, 7 is the outer movable boundary, 8-1 is the guide rod fixing column, 8-2 is the guide rod, 9 is the gear fixing column, 10 is the lifting plate, 11 is the stretching rod, 12 is the movable connecting rod, 13 is the fixing sleeve, 14 is the transmission connecting rod, 15 is the transmission connecting rod joint, 16 is the buffer spring, 17-1 is the gear, 17-2 is the gear connecting rod, 18-1 is the upper main frame, 18-2 is the lower main frame, 19-1 is the upper inner layer, 19-2 is the lower inner layer, 20 is the rack, 21 is the pulley, 22 is the hinge, 23 is the pin structure, 24 is the lifting plate lifting ear, and 25 is the pull rope. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] The lifting device suitable for offshore replenishment provided by the embodiment of the utility model is as follows: Figure 1-Figure 12 As shown, it includes: a frame, a transmission mechanism and a limiting mechanism;

[0051] The top surface of the frame is provided with a top plate 0; the bottom surface of the frame is provided with a bottom plate 3, and a limit mark is provided on the bottom plate 3, wherein the limit mark includes: an inner movable boundary 6 and an outer movable boundary 7;

[0052] The transmission mechanism includes: a first transmission mechanism and a second transmission mechanism; the movable end of the first transmission mechanism can slide through the top plate 0 and be connected to the second transmission mechanism located in the frame;

[0053] The limiting mechanism is connected to the second transmission mechanism, and the first transmission mechanism drives the second transmission mechanism to move, so that the limiting mechanism extends or contracts within the range indicated by the limiting mark, wherein the range indicated by the limiting mark is the range between the inner movable boundary 6 and the outer movable boundary 7;

[0054] In the above technical solution, the frame 1 is loaded with goods that need to be lifted, and the lifting mechanism is used to lift the first transmission mechanism. The first transmission mechanism slides upward, driving the second transmission mechanism to move, and then driving the limiting mechanism to move from the outer active boundary 7 to the inner active boundary 6, thereby approaching the goods in the frame 1 to limit the range of movement of the goods, completing the limiting movement of the limiting mechanism, and realizing the limiting and clamping of the goods; then the transportation mechanism connected to the lifting mechanism is used to transport the goods in the frame 1; when transported to the preset destination, the connection between the lifting mechanism and the first transmission mechanism is released, and the first transmission mechanism slides downward under the action of gravity, driving the second transmission mechanism to move, and then driving the limiting mechanism to move from the inner active boundary 6 to the outer active boundary 7, thereby moving away from the goods in the frame 1, completing the extension movement of the limiting mechanism to release the limiting and clamping of the goods.

[0055] In the above technical solution, through the setting of the transmission mechanism and the limiting mechanism, it is achieved that during the lifting and transportation process, the transmission mechanism is used to drive the limiting mechanism to press the goods, so as to limit the goods, so that during the lifting process, the goods located in the frame remain stable, avoiding the goods from sliding and falling on the frame during the lifting process.

[0056] In order to optimize the above technical solutions, Figure 7 As shown, the second transmission mechanism includes: a transmission connecting rod 14 and a gear 17-1;

[0057] One end of the transmission connecting rod 14 is connected to the movable end of the first transmission mechanism, and the other end is connected to the gear 17-1. Figure 5 and Figure 7 As shown;

[0058] like Figure 1 , Figure 2 and Fig.10 As shown, the limiting mechanism includes: a rack 20, a limiting plate, a guide rod fixing column 8-1 and a guide rod 8-2, the rack 20 and the gear 17-1 are meshed with each other, and the axial direction of the rack 20 is perpendicular to the width of the limiting plate;

[0059] like Figure 1 As shown, one end of the guide rod fixing column 8-1 is fixedly connected to the inner wall of the top plate, and the other end is connected to the guide rod 8-2; the setting direction of the guide rod 8-2 is parallel to the moving direction of the limit plate, and the rack 20 has an axial through hole, which is slidably sleeved on the guide rod 8-2;

[0060] When the first transmission mechanism slides upward, it can drive the transmission connecting rod 14 to move upward, causing the gear 17 - 1 to rotate, so that the rack 20 drives the limit plate to move within the range indicated by the limit mark.

[0061] In the above technical solution, it should be noted that the frame 1 is loaded with goods that need to be lifted, and the first transmission mechanism is lifted by using the lifting mechanism. The first transmission mechanism slides upward relative to the top plate 0, and the first transmission mechanism drives the transmission connecting rod 14 to move, thereby driving the gear 17-1 to rotate. Since the rack 20 and the gear 17-1 are meshed with each other, the rack 20 slides along the guide rod 8-2 (the sliding direction is from the outer active boundary 7 to the inner active boundary 6), driving the limit plate to slide from the outer active boundary 7 to the inner active boundary 6, so as to achieve the limit and clamping of the goods.

[0062] In the above technical solution, it is also necessary to explain that when the goods need to be taken out of the frame 1, the connection between the lifting mechanism and the first transmission mechanism is disconnected, and the first transmission mechanism slides downward relative to the top plate 0 (under the action of gravity). The first transmission mechanism drives the transmission link 14 to move, and then drives the gear 17-1 to rotate. Since the rack 20 and the gear 17-1 are meshed with each other, the rack 20 slides along the guide rod 8-2 (the sliding direction is from the inner active boundary 6 to the outer active boundary 7), driving the limit plate to slide from the inner active boundary 6 to the outer active boundary 7 to release the limit pressure on the goods.

[0063] In order to further optimize the above technical solution, Figure 5 and Figure 7 As shown, the second transmission mechanism also includes: a movable connecting rod 12 and a gear connecting rod 17-2;

[0064] The transmission connecting rod 14 is connected to the gear 17-1 through the movable connecting rod 12 and the gear connecting rod 17-2 in sequence;

[0065] Among them, the connection between the transmission connecting rod 14 and the movable connecting rod 12 is hinged, the connection between the movable connecting rod 12 and the gear connecting rod 17-2 is hinged, and the connection between the gear connecting rod 17-2 and the gear 17-1 is hinged.

[0066] In the above technical solution, the connection is made in an articulated manner, so that the gear 17-1 and the rack 20 are smoother in the process of cooperation. In addition, in some embodiments, the connection between the transmission connecting rod 14 and the movable connecting rod 12 is a fixed connection; the connection between the movable connecting rod 12 and the gear connecting rod 17-2 is a fixed connection, and the connection between the movable connecting rod 12 and the gear connecting rod 17-2 is set at an angle, which is an acute angle; the connection between the gear connecting rod 17-2 and the gear 17-1 is a fixed connection; in addition, in other embodiments, the gear 17-1 is an arc gear, the front face of the arc gear is meshed with the gear 17-1, and the back face of the arc gear is connected to the gear connecting rod 17-2.

[0067] In order to further optimize the above technical solutions, Figure 2 and Figure 3 As shown, the second transmission mechanism further includes: a gear fixing column 9;

[0068] The first end of the gear fixing column 9 is fixed to the inner wall of the top plate 0 ; the connection between the gear connecting rod 17 - 2 and the gear 17 - 1 is rotatably connected to the second end of the gear fixing column 9 .

[0069] In the above technical solution, the gear fixing column 9 plays a fixing role, so that the matching process between the gear 17 - 1 and the rack 20 is smoother.

[0070] In this technical solution, if Figure 1 and Fig. 9 As shown, the limit plate includes: an upper limit plate, a lower limit plate, a latch structure 23 and a hinge 22;

[0071] The upper limit plate is connected to the rack 20;

[0072] The upper limit plate and the lower limit plate are connected by a latch structure 23 and a hinge 22, and the latch structure 23 is staggered with the hinge 22. It should be noted that the latch structure 23 includes a plug plate, a plug rod and a socket; the upper limit plate is provided with a plug plate or a socket, and the lower limit plate is correspondingly provided with a socket or a plug plate, and the plug rod is used for connection;

[0073] In the above technical solution, it should be noted that when the frame 1 needs to be loaded with goods, the insertion rod is first removed, and the hinge 22 is used to rotate the lower limit plate relative to the upper limit plate to form an opening leading to the frame (such as Fig.11 As shown), the goods are loaded into the frame 1 from the opening, and after the goods are loaded, the insertion rod is inserted to fix the lower limit plate and the upper limit plate (as shown in FIG. Figure 1 shown).

[0074] In the above technical solution, it should be noted that, Figure 1 , Fig. 9 and Fig.10 As shown, the upper limit plate includes: an upper main frame 18-1 and an upper inner layer 19-1, and the lower limit plate includes: a lower main frame 18-2 and a lower inner layer 19-2; the latch structure 23 and the hinge 22 are arranged between the upper main frame 18-1 and the lower main frame 18-2.

[0075] In order to optimize the above technical solutions, Figure 1 and Fig. 9 As shown, the limiting plate further includes: a pulley 21;

[0076] The top of the upper limit plate is connected to the rack 20, and the bottom of the upper limit plate is connected to the top of the lower limit plate through a latch structure 23 and a hinge 22. The bottom of the lower limit plate is provided with a pulley 21 that can slide relative to the bottom surface of the frame.

[0077] In the above technical solution, the setting of the pulley 21 makes the limit plate move more smoothly; in addition, in some embodiments, a pulley guide rail 4 is provided on the bottom plate, and the pulley 21 and the pulley guide rail 4 are used in combination. Preferably, the number of pulleys 21 is multiple, and the number of pulley guide rails corresponds one-to-one to the number of pulleys 21.

[0078] In this technical solution, if Figure 1 and Figure 6 As shown, the first transmission mechanism includes: a lifting plate 10 and a stretching rod 11;

[0079] The first end of the stretching rod 11 is connected to the lifting plate 10, and the second end of the stretching rod 11 can slide through the top plate 0 and is connected to the second transmission mechanism located in the frame.

[0080] In the above technical solution, the lifting plate 10 is used to cooperate with the lifting mechanism. The lifting plate 10 can be provided with a lifting ring. The lifting mechanism uses the hook and the lifting ring to cooperate to lift the lifting plate 10, thereby driving the second transmission mechanism to move.

[0081] Optimize the above technical solutions, such as Figure 1 and Figure 6 As shown, the first transmission mechanism further includes: a fixing sleeve 13 and a buffer spring 16;

[0082] The top plate 0 is provided with a top through hole, and the second end of the stretching rod 11 can slide through the top through hole; the fixing sleeve 13 is sleeved on the upper part of the stretching rod 11 and is located above the top plate 0; the buffer spring 16 is sleeved on the lower part of the stretching rod 11 and is located below the top plate 0.

[0083] The radius of the fixing sleeve 13 and the radius of the buffer spring 16 are both greater than the radius of the top through hole.

[0084] In the above technical solution, the fixed sleeve 13 is used to prevent the stretching rod 11 from swinging horizontally too much during the lifting process; the buffer spring 16 is set to release the force of the too fast lifting process and restore the relaxed state of the transmission mechanism after the lifting is completed (it can be understood that the first transmission mechanism slides downward under the action of elastic restoring force and gravity, thereby driving the second transmission mechanism to move).

[0085] In order to further optimize the above technical solution, Figure 1 and Fig.11 As shown, four pull ropes 25;

[0086] The top through hole is arranged in the middle part of the top plate 0, the first end of the stretching rod 11 is connected to the lifting plate 10, and the second end of the stretching rod 11 can slide through the top through hole and be connected to the second transmission mechanism located in the frame;

[0087] The lifting plate 10 is connected to the four corners of the top of the frame through four pull ropes 25 respectively.

[0088] In the above scheme, the lifting plate 10 is connected to the second transmission mechanism through the stretching rod 11. Since the stretching rod 11 passes through the top through hole of the middle part, the projection of the lifting plate 10 in the vertical direction is located in the middle part of the top plate 0, and then the lifting plate 10 is respectively connected to the four corners of the top of the frame through four pull ropes 25, so that the frame lifting process is more stable; in addition, frame lifting ears 5 are respectively provided at the four corners, and the lifting plate 10 is provided with four lifting plate lifting ears 24, and the two ends of the corresponding pull ropes 25 are respectively connected to the corresponding frame lifting ears 5 and the lifting plate lifting ears 24.

[0089] In order to further optimize the above technical solution, Figure 1 As shown, a thickening layer 1 is provided in the middle portion of the top plate 0 , and the thickening layer 1 is used for fixing and bearing force on the transmission mechanism; in addition, the thickening layer 1 is arranged on the inner wall of the top plate 0 .

[0090] In some embodiments, the technical solution is applied to the replenishment between the supply ship and the ship. A horizontal dry cargo replenishment device is constructed between the supply ship and the ship, and the transport mechanism of the horizontal dry cargo replenishment device is used to transport the cargo. When the lifting device is lifted upward by the lifting mechanism, the transmission mechanism in the device causes the four limit mechanisms to move toward the center of the device within a certain range under the action of the upward pulling force, thereby limiting the range of movement of the contents. When stretched upward to a certain height, the pull rope 25 is straightened, and the lifting plate 10 directly bears the gravity transmitted by the pull rope 25, and no longer continues to affect the internal structure through the transmission mechanism.

[0091] The technical features mentioned above, the technical features to be mentioned below, and the technical features shown separately in the drawings can be combined with each other arbitrarily, as long as the combined technical features are not contradictory. All feasible feature combinations are technical contents clearly recorded in this article. Any of the multiple sub-features contained in the same sentence can be applied independently, and does not have to be applied together with other sub-features.

[0092] The present invention is further described below in conjunction with specific embodiments:

[0093] In this technical solution, it is composed of four parts: frame, transmission mechanism, limiting mechanism and pull rope. Lift the lower main frame 18-2 along the hinge 22, place the goods to be lifted in the internal space of the assembled lifting device, insert the latch to fix the limiting mechanism, and when the entire device is lifted upward through the main lifting lug on the lifting plate, the transmission mechanism in the device, under the action of the upward pulling force, causes the four limiting mechanisms to move toward the center of the device within a certain range, thereby approaching the contents and limiting the range of movement of the contents. When stretched upward to a certain height, the pull rope 25 is straightened, and the lifting plate 10 directly bears the gravity of the frame and the internal goods transmitted by the pull rope 25. At this time, the limiting mechanism is no longer affected by the transmission mechanism, and the pull rope 25 continues to lift upward to lift the entire device.

[0094] like Figure 1 As shown, the lifting device includes: a frame, a set of transmission mechanisms, four limit mechanisms, and four pull ropes.

[0095] Frame: The frame structure (i.e., the frame) carries goods and connects other components, and is usually made of hard materials such as metal. The main part of the frame structure includes the top plate 0 of the frame, the bottom plate 3 of the frame, and four columns connecting the upper and lower surfaces. There is a thickening layer 1 below the center of the top surface of the frame, which is used to fix and bear force with the upper and lower transmission mechanisms; a guide rod fixing column 8-1 is fixed below each of the four sides of the top surface of the frame, which is used to fix the guide rod 8-2 of the "cross-shaped" limiting mechanism; a shorter gear fixing column 9 is fixed at a certain distance inside each guide rod fixing column 8-1, which is used to fix the arc gear. There are frame lifting ears 5 at the four upper corners of the top surface of the frame, which are used to connect the pull rope 25 to lift it upward. The bottom plate 3 of the frame is marked with an inner movable boundary 6 and an outer movable boundary 7 according to the movable range of the limiting mechanism. The space occupied by the cargo to be lifted on the bottom plate 3 of the frame should be between the inner and outer movable boundaries. There is a pulley guide rail 4 between the inner and outer movable boundaries so that the limiting mechanism can slide stably on top of it.

[0096] Transmission mechanism: The transmission mechanism plays the role of converting vertical force into horizontal force, and is usually made of hard materials such as metal. The main lifting lug is at the top of the transmission mechanism. The main lifting lug is an interface for applying tension to the entire self-limiting lifting device from the outside. The main lifting lug is fixed on a circular lifting plate 10 of a certain thickness. Four lifting plate lifting lugs 24 are evenly distributed along the circumference of the lower part of the lifting plate 10 at a certain distance inward, which are used to connect with the frame lifting lug 5 through a pull rope 25 for lifting. A thicker stretching rod 11 perpendicular to it is fixed in the center of the lifting plate 10. The stretching rod 11 passes through the circular hole on the top surface of the frame structure. The part of the stretching rod 11 above the top plate 0 is covered with a fixed sleeve 13 on the outside to prevent the stretching rod from swinging horizontally too much during the lifting process; the part of the stretching rod 11 below the top surface is covered with a buffer spring 16 on the outside to relieve the excessive lifting force and restore the relaxation state of the transmission mechanism through it after the lifting is completed. There is a hole below the stretching rod 11 connected to the circular joint of the four transmission connecting rods 14. A shorter movable connecting rod 12 is fixed to the end of each of the four transmission connecting rods, which is connected to the gear connecting rod 17-2 through the movable connecting rod 12. The part where the gear connecting rod 17-2 is connected to the gear 17-1 is fixed to the gear fixing column 9.

[0097] Limiting mechanism: The limiting mechanism has the function of limiting the movement space of the contents in the device. The uppermost part of the limiting mechanism is a rack 20 connected to the gear 17-1. The rack 20 is fixed to the upper end of the upper main frame 18-1 in a direction perpendicular to the limiting mechanism. At the same time, there is a through space inside it. The guide rod 8-2 of the limiting mechanism passes through the space and then connects to the guide rod fixing column 8-1, thereby guiding and restricting the movement of the limiting mechanism. The upper main frame 18-1 of the limiting mechanism has the same width as the lower main frame 18-2, and the height of the upper main frame 18-1 is much smaller than that of the lower main frame 18-2. The upper main frame 18-1 is connected to the upper end of the lower main frame 18-2 through two hinges 22 at the lower end. There is a latch on each side of the upper and lower main frames. When the goods need to be loaded into or taken out of the self-limiting lifting device, the latch is pulled out, and the lower main frame can be lifted along the hinge 22; when lifting is required, the latch is inserted, and the upper and lower main frames are combined into a whole. The inner layer of the middle part of the upper and lower main frames of the limiting mechanism can be made of a plate-like hard material or a material with a certain elasticity, or it can be made of a hard strip fence. Two to three pulleys 21 are fixed to the lower end of the lower main frame of the limiting mechanism as needed, and the pulleys are connected to the pulley guide rails 4 on the bottom surface of the frame structure, so that the limiting mechanism can smoothly and stably achieve limiting and slide in a predetermined direction.

[0098] Pull rope: The pull rope 25 is used to connect the frame lifting lug 5 with the lifting lug 24 of the lifting plate, and to lift the frame and its internal objects during lifting. The pull rope should be controlled to a reasonable length. When the lifting plate 10 is not lifted, the pull rope is in a relaxed state. When the lifting plate 10 is lifted to a certain height to achieve the purpose of limiting, the pull rope 25 is straightened to become the main load-bearing structure.

[0099] In this technical solution, the self-limiting lifting function can be realized by adding sensors, motors, controllers and other equipment and utilizing the electrical automation system. In addition, an external power supply or a battery is also required.

[0100] Advantages of the utility model:

[0101] 1. The utility model does not require the aid of external devices and can achieve rapid, self-limited lifting during lifting, which can reduce the time for cargo lifting preparation, unloading and related links and improve work efficiency.

[0102] 2. According to the design, the utility model can be applied to standardized pallets and other container devices for rapid loading and lifting.

[0103] 3. During use, the utility model does not need to consume other materials such as wrapping film and binding tape, is easy to use, and has good environmental protection and economy.

[0104] 4. All components in the utility model are modularly designed. When a component is damaged or lost, a component of the same size can be selected for replacement. In addition, the material and elasticity of the limiting structure can be adjusted according to the characteristics of the load to achieve multiple combination configurations to meet various needs.

[0105] The key points and protection points of this utility model are:

[0106] 1. The self-limiting structure and connection combination of this device.

[0107] 2. The components of this device are interchangeable.

[0108] 3. The device is convenient for loading goods.

[0109] 4. This device can load goods on pallets.

[0110] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0111] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lifting device suitable for offshore replenishment, characterized in that: include: Frame, transmission mechanism and limit mechanism; The top surface of the frame is provided with a top plate (0); the bottom surface of the frame is provided with a bottom plate (3), and a limit mark is provided on the bottom plate (3); The transmission mechanism comprises: a first transmission mechanism and a second transmission mechanism; the movable end of the first transmission mechanism can slide through the top plate (0) and be connected to the second transmission mechanism located in the frame; The limiting mechanism is connected to the second transmission mechanism, and the first transmission mechanism drives the second transmission mechanism to move, so that the limiting mechanism extends or contracts within the range indicated by the limiting mark.

2. The lifting device according to claim 1, characterized in that: The second transmission mechanism comprises: a transmission connecting rod (14) and a gear (17-1); One end of the transmission connecting rod (14) is connected to the movable end of the first transmission mechanism, and the other end is connected to the gear (17-1); The limiting mechanism comprises: a rack (20), a limiting plate, a guide rod fixing column (8-1) and a guide rod (8-2); the rack (20) and the gear (17-1) are meshed with each other, and the axial direction of the rack (20) is perpendicular to the width of the limiting plate; One end of the guide rod fixing column (8-1) is fixedly connected to the inner wall of the top plate (0), and the other end is connected to the guide rod (8-2); the setting direction of the guide rod (8-2) is parallel to the moving direction of the limit plate, and the rack (20) has an axial through hole, and the axial through hole is slidably sleeved on the guide rod (8-2); When the first transmission mechanism slides upward, it can drive the transmission connecting rod (14) to move upward, causing the gear (17-1) to rotate, so that the rack (20) drives the limit plate to move within the range indicated by the limit mark.

3. The lifting device according to claim 2, characterized in that: The second transmission mechanism further comprises: a movable connecting rod (12) and a gear connecting rod (17-2); The transmission connecting rod (14) is connected to the gear (17-1) via a movable connecting rod (12) and the gear connecting rod (17-2) in sequence; The transmission connecting rod (14) and the movable connecting rod (12) are connected in an articulated manner, the movable connecting rod (12) and the gear connecting rod (17-2) are connected in an articulated manner, and the gear connecting rod (17-2) and the gear (17-1) are connected in an articulated manner.

4. The lifting device according to claim 3, characterized in that: The second transmission mechanism further comprises: a gear fixing column (9); The first end of the gear fixing column (9) is fixed to the inner wall of the top plate (0); the connection between the gear connecting rod (17-2) and the gear (17-1) is rotatably connected to the second end of the gear fixing column (9).

5. The lifting device according to claim 2, characterized in that: The limit plate comprises: an upper limit plate, a lower limit plate, a latch structure (23) and a hinge (22); The upper limit plate is connected to the rack (20); The upper limit plate and the lower limit plate are connected via the latch structure (23) and the hinge (22), and the latch structure (23) is arranged staggered with respect to the hinge (22).

6. The lifting device according to claim 5, characterized in that: The limiting plate further comprises: a pulley (21); The top end of the upper limit plate is connected to the rack (20), the bottom end of the upper limit plate is connected to the top end of the lower limit plate via the latch structure (23) and the hinge (22), and the bottom end of the lower limit plate is provided with the pulley (21) capable of sliding relative to the bottom surface of the frame.

7. The lifting device according to any one of claims 1 to 6, characterized in that: The first transmission mechanism comprises: a lifting plate (10) and a stretching rod (11); The first end of the stretching rod (11) is connected to the lifting plate (10), and the second end of the stretching rod (11) can slide through the top plate (0) and is connected to a second transmission mechanism located in the frame.

8. The lifting device according to claim 7, characterized in that: The first transmission mechanism further comprises: a fixing sleeve (13) and a buffer spring (16); The top plate (0) is provided with a top through hole, and the second end of the stretching rod (11) can slide through the top through hole; the fixing sleeve (13) is sleeved on the upper part of the stretching rod (11) and is located above the top plate (0); the buffer spring (16) is sleeved on the lower part of the stretching rod (11) and is located below the top plate (0); Wherein, the radius of the fixing sleeve (13) and the radius of the buffer spring (16) are both greater than the radius of the top through hole.

9. The lifting device according to claim 8, characterized in that: Also includes: four draw cords (25); The top through hole is arranged in the middle part of the top plate (0), the first end of the stretching rod (11) is connected to the lifting plate (10), and the second end of the stretching rod (11) can slide through the top through hole and be connected to the second transmission mechanism located in the frame; The lifting plate (10) is respectively connected to the four corners of the top of the frame through the four pull ropes (25).

10. The lifting device according to claim 9, characterized in that: A thickening layer (1) is provided in the middle portion of the top plate (0).

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