A boat skid car

Abstract

The application discloses a boat lifting sledge, belongs to the technical field of boat lifting, and solves the technical problem of lifting a manned boat from a low water level to a high water level by using an ancient sledge. The boat lifting sledge comprises a support and a rotating wheel. The support comprises an axle seat and an axle. The rotating wheel comprises a sleeve, spokes, a rim, a water containing cylinder, a cylinder door and a bearing groove. The sleeve and the rim are connected at two ends of the spokes respectively. The water containing cylinder is arranged in parallel with the sleeve on the inner side of the rim and is connected with the spokes and the rim. The cylinder door is arranged at the cylinder opening of the water containing cylinder and is connected with the water containing cylinder perpendicularly. The bearing groove is arranged on the outer wall of the water containing cylinder. The sleeve of the rotating wheel is sleeved on the axle, and the axle is inserted into the axle seat. The bearing groove is driven by the water flow and other power to drive the rotating wheel to rotate around the axle on the support, so that the water containing cylinder is immersed in the water where the manned boat is located. The manned boat is driven into the water containing cylinder, the cylinder door is closed, the boat moves with the cylinder, the cylinder door is opened, and the boat is driven out by the water. The working principle of the sledge and the movement process of the water and the floating body in the cylinder are realized.

Description

Technical Field

[0001] This invention relates to the field of ship lifting technology, and in particular to a ship lifting trolley. Background Technology

[0002] Currently, ship lifting technologies for raising vessels from low water to high water include lock technology, towing technology, and ship lift technology (including vertical ship lift technology, ramp ship lift technology, and rotary ship lift technology). For example, invention patent application number 202110964520.4 includes a ship support section comprising two symmetrically arranged support components and two side-pressure clamping components. After the vessel to be lifted travels to the surface of the support components, the two side-pressure clamping components clamp the vessel from both sides, and the vessel is lifted to a higher position by using a lifting rope to hoist the ship support section. Another example is invention patent application number 202010832674.3, which includes a lifting chamber. There is a second gate located at the low water level and a first gate located at the high water level. When in use, first open the second gate to allow the vessel at the low water level to enter the lifting chamber. At the same time, the water flow from the low water level will also flow into the lifting chamber until the water level in the lifting chamber is the same as the water level at the low water level. Then close the second gate and open the first gate. The water flow from the high water level will flow into the lifting chamber through the first gate, raising the vessel in the lifting chamber until the water level in the lifting chamber is the same as the water level at the high water level. At this point, the vessel can be sailed out of the lifting chamber.

[0003] The aforementioned technologies only address the need for lifting boats. Furthermore, the existing water-carrying cylinders of traditional waterwheels are merely small-capacity, open square or cylindrical tubes, only capable of holding water and withstanding water impact; they cannot carry boats, rendering the traditional waterwheels primarily functional for lifting water and for observation. Current technology fails to address people's educational needs: the desire to ride in a boat into the water-carrying cylinder of the traditional waterwheel, and to experience the working principle of the waterwheel and the movement and changes of water and floating objects (including boats) within the cylinder as the wheel rotates and lifts them from a lower to a higher water level.

[0004] In summary, there is an urgent need to design a boat-lifting cart to meet people's learning needs: riding a boat into the water-filled cylinder of the ancient cart, being lifted from a low water level to a high water level as the cart rotates, and perceiving the working principle of the cart and the movement and changes of water and floating objects (including boats) in the water-filled cylinder. Summary of the Invention

[0005] The purpose of this invention is to address the needs that have not been addressed in the prior art by providing a boat-lifting cart that fulfills people's desire for enjoyable learning: passengers ride a boat into the water-filled tank of the traditional boat-lifting cart, and as the cart rotates and lifts them from a low water level to a high water level, they can perceive the working principle of the cart and the movement and changes of water and floating objects (including boats) within the water-filled tank.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] This invention provides a boat lifting cart, which includes a support frame and a rotating wheel. The rotating wheel is driven by the force of water flow and other forces to rotate circumferentially around a rotating shaft on the support frame. The support frame includes a bearing seat and a rotating shaft; the bearing seat has a shaft hole, multiple long legs, and mounting components; the rotating shaft is in the shape of a long column and has a circular cross-section in part. The wheel includes a bushing, spokes, a rim, a water tank, a gate, and a groove; the bushing is a straight tube with mounting components around its perimeter and a bushing hole at its center; the spokes are straight with mounting components at both ends and on the body; the rim is curved and has mounting components on its body; the water tank has a body, a sealing ring, a mouth, a chamber, a bottom, a bottom vent, and mounting components; the groove has a body, a mouth, a chamber, a bottom, and mounting components; the gate includes a frame, a panel, and mounting components; the frame has a track for the panel to move and a connection to the body; the panel has a handle and a vent.

[0008] Preferably, the bearing seat has a cylindrical shaft hole with its center line set horizontally on its body, and each bearing seat has two long legs, the length of each long leg of the bearing seat being greater than the radius of the maximum arc of the wheel rim;

[0009] Preferably, the rotating shaft is cylindrical in shape throughout, with the diameter of the cylindrical rotating shaft being slightly smaller than the diameter of the cylindrical shaft hole and the cylindrical bushing hole, and the length of the cylindrical rotating shaft being greater than the length of the cylindrical bushing.

[0010] Preferably, one of the cylindrical rotating shafts is inserted into the circular shaft holes of two or more shaft seats and loosely connected to the shaft seats to form the bracket. The legs of the bracket are fixedly connected to a stable foundation.

[0011] Preferably, the bushing is in the shape of a straight circular tube, and the hollow space of the same radius along the center line of the circular tube is called the bushing hole. The radius of the bushing hole is slightly larger than the outer wall radius of the cylindrical shaft, and the length of the bushing is smaller than the length of the shaft. On the outer wall near both ends of the bushing, there are multiple components evenly distributed around the outer wall for connecting the spokes.

[0012] Preferably, the spokes are straight, and their ends and body have mounting components for connecting the rim and the water tank, respectively.

[0013] Preferably, the rim is curved, with mounting components on the inner side for connecting the spokes, the water tank and the groove, and mounting components at both ends for forming a circular shape on the rim;

[0014] Preferably, the water-holding cylinder is shaped like a bamboo tube, having a body, a sealing ring, a mouth, a chamber, a bottom, and a bottom vent. It is constructed by seamlessly sealing and fixing one end of a circular tube to a circular plate with a through hole at its center. The circular plate serves as the bottom; the circular tube as the body; the other end of the tube is called the mouth; a hollow space with the same radius along the center line of the circular tube is called the chamber, and the chamber's dimensions must at least allow for the safe and smooth movement of the smallest vessel and passengers within it; the through hole in the circular plate is called the bottom vent; a sealing ring of the same shape as the end of the body is provided on the end face of the body at the mouth; the outer wall of the body has components for connecting the door, spokes, and rim.

[0015] Preferably, the receiving trough is an irregularly shaped water tank with a rectangular opening and an arc-shaped bottom, comprising a trough body, a trough opening, a trough chamber, and a trough bottom. The trough body is formed by two identical short side plates seamlessly and fixedly connected to a wide long side plate and a narrow long side plate, creating two opposing openings. The edges of the two short side plates in one opening are arcs, with a radius equal to the radius of the arc on the outer wall of the trough body. The edges of the two long side plates are straight lines, forming an arc-shaped opening. The other opening is rectangular. The arc-shaped opening of the trough body is seamlessly and tightly fitted to one side of the outer wall of the trough body, and the portion of the trough body wall occupied by the arc-shaped opening serves as the trough bottom plate. The hollow space inside the trough body is called the trough chamber; the rectangular opening is called the trough opening.

[0016] Preferably, the gate includes a door frame and a door panel, and has mounting components for connecting the water tank. The door frame is an elongated ring shape. The outer ring surface of the door frame has semicircular ends and a straight middle section, with the centers of the two semicircles located within the elongated ring frame. The inner ring surface of the door frame consists of three different inner ring surfaces: left, middle, and right. The shape of the left inner ring surface is the same as the outer ring surface; the shape of the middle inner ring surface is the same as the outer ring surface, and the diameter of the semicircular ring surface is equal to the arc diameter of the outer wall of the tank, equal to the spacing of the straight inner ring surfaces, and greater than the diameter of the semicircular inner ring surface of the left inner ring surface and the spacing of the straight inner ring surfaces; one end of the right inner ring surface has a semicircular inner ring surface and most of the straight inner ring surface the same as the left inner ring surface, while the other end has an arc-shaped inner ring surface, which shares a common arc with the semicircular inner ring surface of the middle inner ring surface. The inner ring has a central line with equal radii, an arc length greater than the semicircular arc length, and an obtuse angle with the straight inner ring surface, forming a C-shaped inner ring surface. At locations where the three inner ring surfaces share the same shape, there is a concave groove. The central inner ring surface serves as the bottom surface of the groove, while the inner ring surfaces at the same locations on the left and right sides serve as the top surfaces of the groove walls on either side. The groove is used for the reciprocating movement of the door panel's opening and closing mechanism. The C-shaped inner ring surface is a structure of the door frame used to connect to the cylinder body, and also serves as the entrance for the door panel to enter the groove when the door panel and door frame form a cylindrical door. The door panel is circular, with a cylindrical door handle perpendicular to the panel surface at its center. A ventilation hole, perpendicular to the panel surface and along the center line of the handle, penetrates the door handle and the door panel. The thickness of the door panel is slightly smaller than the width of the groove, and the radius of the arc at the edge of the door panel is slightly smaller than the radius of the arc at the bottom of the groove, but greater than or equal to the radius of the arc on the outer wall of the cylinder body.

[0017] Preferably, one end of each spoke is fixedly connected to a uniformly distributed mounting member on the outer wall of one of the bushings near both ends, and the spokes are arranged radially along the warp direction of the bushing; two arc-shaped rims correspond to two sets of spokes respectively, and are fixedly connected to the other ends of all the corresponding spokes; the water-holding cylinder and the groove are arranged horizontally parallel to the bushing, with all cylinder openings facing in one direction, and the cylinder opening faces located outside the outer edge of the rim. The outer wall of the water-holding cylinder is fixedly connected to two spokes in the two sets of spokes, and also fixedly connected to the rim between these two spokes. The groove opening is perpendicular to the cylinder opening, so that the groove and the outer wall of the water-holding cylinder are seamlessly fixedly connected in the same direction. On the inner side of the outer rim, the wide and long side plates of the groove are fixedly connected to the rim, and the two short side plates of the groove are fixedly connected to the inner side of the corresponding spokes respectively. With the free end of the gate pointing in the opposite direction to the direction of the receiving groove, the C-shaped inner ring of the gate is fitted onto the outer wall of the cylinder body at the gate opening, making the gate perpendicular and fixedly connected to the cylinder body. When the gate is closed, it locks itself and cannot be opened without external force, preventing people, water, boats, etc., inside the cylinder from exiting through the gate opening; when the gate is open, people, water, boats, etc., inside the cylinder can exit smoothly through the gate opening; this constitutes the aforementioned impeller. The impeller is circular in shape.

[0018] Preferably, the cylindrical rotating shaft is inserted into the cylindrical bushing hole on the rotating wheel. Two cylindrical sections of the rotating shaft extending beyond the bushing ends are then inserted into the shaft holes of the two bearing seats. The bushing and the rotating shaft, and the rotating shaft and the bearing seats, are all loosely connected. A certain distance is set between the outer contour lines of the rotating wheel and the inner contour lines of the two supports. This constitutes a ship-lifting trolley. The circular rotating wheel rotates in a vertical circumference around the rotating shaft on the support.

[0019] The present invention achieves the following technical effects compared to the prior art:

[0020] 1. By setting up a circular water-holding cylinder with a body, sealing ring, opening, compartment, bottom, and vent hole at the bottom, the cylinder wall achieves excellent roundness and airtightness. Even when the water in the compartment moves in the opposite direction to the cylinder body, the vessel moves safely and smoothly with the water in the cylinder. The circular shape allows for a vent hole at the center of the bottom, ensuring both water depth and air circulation within the compartment. The circular opening of the cylinder, with the body parallel and horizontal to the bushing, ensures that the area occupied by the water at the opening remains constant regardless of the cylinder's position. This allows the vessel to safely and quickly enter and exit the compartment under any movement pattern of the launching trolley.

[0021] 2. Utilizing the objective phenomenon of downward gravity, by setting a long annular door frame, a circular door panel, ensuring the long-length centerline of the door frame is perpendicular to the diameter of the rotating wheel, and aligning the opening force with the rotating wheel's forward direction, the linear track in the middle of the door frame is horizontal at the 6 o'clock and 12 o'clock positions. The door panel's own weight is perpendicular to the opening or closing force, and its weight only affects the frictional force of its movement. As the rotating wheel rotates in the opening force direction, the door panel's own weight gradually becomes the closing force, preventing the door panel from being lifted off the cylinder opening by its own weight. This keeps the cylinder opening absolutely closed, ensuring the safe operation of the vessel within the tank. These features minimize the volume of the door frame and door panel, achieving energy savings. Furthermore, these features allow the door panel to easily move back and forth within the door frame to open or close the cylinder opening, especially when the long-length of the door frame is horizontal, making the door panel's movement even easier and further contributing to energy savings.

[0022] 3. By using the cylinder wall opposite to the direction of the impeller's movement as the bottom of the receiving groove, the weight of the receiving groove is saved, thus achieving energy saving. By setting the groove opening opposite to the direction of the impeller's movement, the water flow that drives the impeller in the groove acts more directly on the impeller, improving force efficiency. By placing the long side wide plate of the receiving groove close to the outer edge of the impeller, more water flow used to drive the impeller's rotation is ensured to enter the groove and stay in the groove for a longer time. This greatly improves the conversion rate of the water flow's potential energy and kinetic energy into the power to drive the impeller's rotation, achieving energy saving. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] 1. Figure 1 A frontal view of the structure of the ship-lifting cart;

[0025] 2. Figure 2 This is a schematic diagram of the axle side structure of the ship-lifting cart;

[0026] 3. Figure 3 This is a schematic diagram of the support axial side structure;

[0027] 4. Figure 4 This is a schematic diagram of the shaft side structure of the impeller;

[0028] 5. Figure 5 This is a schematic diagram of the axial structure of the inlet face of the water tank;

[0029] 6. Figure 6 A schematic diagram of the axial structure of the bottom surface of the water tank;

[0030] 7. Figure 7 This is a schematic diagram of the shaft side structure of the bearing groove;

[0031] 8. Figure 8 This is a schematic diagram of the left axonometric structure of the portal gate;

[0032] 9. Figure 9 This is a schematic diagram of the right-side axonometric structure of the portal.

[0033] 10. Figure 10 A schematic diagram of the axial structure of the annular plate on the left side of the door frame;

[0034] 11. Figure 11 A schematic diagram of the axial structure of the annular plate in the middle of the door frame;

[0035] 12. Figure 12 A schematic diagram of the axial structure of the annular plate on the right side of the door frame;

[0036] 13. Figure 13 This is a schematic diagram of the outer axial side panel structure of the door panel;

[0037] 14. Figure 14 A front view structural diagram of the combined water tank, receiving trough, and gate.

[0038] 15. Figure 15This is a schematic diagram of the axial structure of the water tank, the receiving trough, and the gate assembly.

[0039] Among them, 1. Shaft seat; 11. Shaft hole; 2. Rotating shaft; 3. Shaft sleeve; 31. Shaft sleeve hole; 4. Spoke; 5. Wheel rim; 6. Water tank; 61. Tank body; 62. Sealing ring; 63. Tank opening; 64. Tank chamber; 65. Tank bottom; 66. Tank bottom vent hole; 7. Bearing groove; 71. Arc-edged flat plate; 72. Arc-faced wide plate; 73. Rectangular narrow plate; 74. Arc-shaped opening; 75. Groove bottom; 76. Groove cavity; 77. Groove opening; 8. Tank door; 81. Door frame; 811. Outer ring surface; 812. Inner ring surface of left ring plate; 813. Inner ring surface of middle ring plate; 814. C-shaped inner ring surface; 815. Inner ring surface of right ring plate; 816. Rail groove; 817. Rail groove bottom surface; 82. Door panel; 821. Door handle; 822. Door panel vent hole. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] like Figures 1 to 15 As shown, the present invention provides a ship lifting cart, which includes a support and a rotating wheel. The rotating wheel rotates at a low and uniform speed on the support around a horizontal rotating shaft 2.

[0043] like Figure 1 , Figure 2 As shown, the support consists of a bearing seat 1 and a rotating shaft 2; the wheel consists of a bushing 3, spokes 4, a rim 5, a water-holding cylinder 6, a support groove 7, and a gate 8. The cylindrical rotating shaft 2 is inserted into the cylindrical bushing hole 31 on the circular wheel. Two sections of the cylindrical rotating shaft 2 extending beyond the ends of the bushing 3 are then inserted into the shaft holes 11 of the two bearing seats 1. The bushing 3 and the rotating shaft 2, and the rotating shaft 2 and the bearing seats 1, are all loosely connected. A certain distance is set between the outer contour lines of the two wheels and the inner contour lines of the two supports. This constitutes a boat launching cart. The circular wheel rotates at a low, uniform speed around the rotating shaft 2 on the support.

[0044] Before the water tank 6 on the rotating wheel reaches the 6 o'clock position (e.g.) Figure 2(As shown at the 4 o'clock position on the clock), the door panel 82 is moved to the other end of the door frame 81, completely exposing the cylinder opening 63. As the water-bearing cylinder 6 gradually enters the water, a large amount of water enters the tank 64 from the cylinder opening 63. Subsequently, the ship sails to the water surface of the tank 64, and the door panel 82 is moved back to close and lock the cylinder opening 63 (as shown on the clock face). Figure 2 (As shown at the 8 o'clock position on the clock), this prevents water from leaking out of the tank 64. When the water tank 6 approaches the 12 o'clock position on the clock, an external force quickly moves the door panel 82 (as shown). Figure 2 In the middle, the 12 o'clock position shows that during the rapid removal of the door panel 82, the cylinder opening 63 is instantly and completely exposed. The water in the cylinder 64 carries the manned vessel and flows rapidly out of the cylinder opening 63, into the fixed water slide outside the cylinder opening 63, and slides forward.

[0045] like Figure 3 As shown, a cylindrical shaft 2 is inserted into the circular shaft hole 11 of two or more bearing seats 1 and is loosely connected to the bearing seats 1 to form a support. The feet of the support are fixedly connected to a stable foundation.

[0046] like Figure 4 As shown, one end of each spoke 4 is fixedly connected to a uniformly distributed mounting component on the outer wall of a bushing 3 near both ends. The spokes 4 are arranged radially along the warp direction of the bushing 3. Two arc-shaped rims 5 correspond to two sets of spokes 4 respectively and are fixedly connected to the other end of all corresponding spokes 4. The water-holding cylinder 6 and the support groove 7 are arranged horizontally parallel to the bushing 3, with all cylinder openings 63 facing in one direction, and the openings of the cylinder openings 63 located outside the outer edge of the rim 5. The outer wall of the cylinder body 61 of the water-holding cylinder 6 is fixedly connected to two spokes 4 in the two sets of spokes 4, and also fixedly connected to the rim 5 between these two spokes 4. The groove 77 is oriented perpendicular to the opening 63, ensuring a seamless and fixed connection between the groove 7 and the outer wall of the water-holding cylinder 6. The wide and long side plates of the groove 7 are fixedly connected to the rim 5 on the outer side, and the two short side plates of the groove 7 are fixedly connected to the inner sides of the corresponding spokes 4. The free end of the gate 8 is oriented in the opposite direction to the opening of the groove 7. The C-shaped inner ring 814 on the gate 8 is fitted onto the outer wall of the cylinder body 61 at the opening 63, ensuring a perpendicular and fixed connection between the gate 8 and the cylinder body 61. When the gate 8 is closed, it locks itself and cannot be opened without external force, preventing people, water, and boats inside the tank 64 from exiting through the gate 8. When the gate 8 is open, people, water, and boats inside the tank 64 can exit smoothly through the gate 8, thus forming the rotating wheel. The rotating wheel is circular in shape.

[0047] like Figure 5 , Figure 6As shown, the body 61 of the water-holding cylinder 6 is a circular tube with openings at both ends. The bottom 65 is a circular plate with a through hole at its center. The circular plate seamlessly seals and fixes one end opening of the circular tube to form the water-holding cylinder 6. The other end opening of the circular tube is called the cylinder opening 63. A hollow space with the same radius along the center line of the circular tube is called the cylinder compartment 64. The dimensions of the cylinder opening 63 and the cylinder compartment 64 are sufficient to allow the minimum number of vessels and passengers to move safely and smoothly within the cylinder compartment 64. The through hole in the circular plate is called the bottom vent 66. A sealing ring 62 with the same shape as the end of the cylinder body 61 is provided on the end face of the cylinder body 61 at the cylinder opening 63.

[0048] like Figure 7 As shown, the trough body is formed by four side plates—a wide arc-shaped plate 72, a narrow rectangular plate 73, and two identical arc-edged flat plates 71—and an arc-shaped bottom plate, all seamlessly connected and fixed together. The arc-edged flat plate 71 has a small-diameter arc edge with the same radius as the outer arc of the cylinder body 61, a large-diameter arc edge with the same radius as the arc of the aforementioned wide arc-shaped plate 72, and two straight edges. The large arc edges of the two arc-edged flat plates 71 are seamlessly and perpendicularly fixed to the inner arc surfaces of the two ends of the wide arc-shaped plate 72. The narrow rectangular plate 73 is seamlessly and perpendicularly fixed to the arc-edged flat plate 71 on the opposite side of the wide arc-shaped plate, forming the trough body. The openings where the small-diameter arc edges of the two arc-edged flat plates 71 of the trough body are located are arc-shaped openings 74, and the openings opposite the arc-shaped openings 74 are rectangular openings. The two curved sides of the arc-shaped opening 74 are engaged with one side of the outer wall of the arc-shaped cylinder 61, and the two straight sides are aligned with the outer wall of the cavity and are seamlessly fixed. The cylinder 61 occupied by the arc-shaped opening 74 serves as the bottom of the groove 75. The hollow space inside the groove is called the groove chamber 76; the rectangular opening is called the groove opening 77.

[0049] like Figures 8 to 13As shown, the gate 8 includes a gate frame 81, a gate panel 82, and has mounting components for connecting the water tank 6. The door frame 81 has a long ring shape similar to that of a school playground track. The door frame 81 is composed of three ring plates—left, middle, and right—with the same outer ring surface 811 and different inner ring surfaces, which are attached together and the outer ring surfaces 811 are aligned and stacked. The three ring plates of the door frame 81 have the same outer ring surface 811 with semicircular ends and a straight middle section. The middle ring plate is narrower, and its inner ring surface shape is the same as the outer ring surface 811. The diameter of the semicircular inner ring surface is equal to the spacing of the straight inner ring surfaces, which is equal to the diameter of the arc of the outer wall of the cylinder 61. The shape of the inner ring surface 812 of the left ring plate is the same as that of the outer ring surface 811, and the width of the ring plate is greater than that of the middle ring plate. The semicircular inner ring surface at one end of the right ring plate shares a central line with one semicircular inner ring surface of the middle ring plate, and the radii are equal. This semicircular inner ring surface extends to the straight inner ring surface until it intersects with the straight inner ring surface, becoming a C-shaped inner ring surface 814. The width of the annular plate in the semi-circular portion of the C-shaped inner annular surface 814 is equal to the width of the middle annular plate. From the diameter line of the C-shaped inner annular surface 814 to the intersection of the C-shaped inner annular surface 814 and the straight inner annular surface, the width of the right annular plate in this portion gradually reaches the width of the right annular plate in the straight section. From the intersection of the C-shaped inner annular surface 814 and the straight inner annular surface towards the semi-circular direction of the C-shaped inner annular surface 814, the width of the right annular plate gradually becomes the same as the width of the middle annular plate. The shape of the straight inner annular surface and the semi-circular inner annular surface at one end of the right annular plate in the remaining portions is the same as the shape of the corresponding inner annular surface 812 of the left annular plate, and the width of the plate is greater than that of the middle annular plate. The three annular plates are stacked to form a rail groove 816 located between the left and right annular plates. The inner annular surface 813 of the middle annular plate serves as the bottom surface 817 of the rail groove, and the left and right annular plates serve as the groove walls of the rail groove 816. The door panel 82 is circular. At the center of the front panel of the door panel 82, there is a cylindrical door handle 821 perpendicular to the panel surface. At the center of the handle 821, there is a vent hole 822 perpendicular to the panel surface and extending along the center line. The thickness of the door panel 82 is slightly less than the width of the track groove 816 of the door frame 81. The radius of the arc of the edge of the door panel 82 is slightly less than the radius of the arc of the bottom surface 75 of the track groove 816, but greater than or equal to the radius of the arc of the outer wall of the cylindrical body 61. The door panel 82 enters the track groove 816 from the C-shaped inner ring surface 814, forming a cylindrical door 8 with the door frame 81. When the door panel 82 reaches the C-shaped inner ring surface 814, and the arc surface of the edge of the door panel 82 is in contact with the semi-circular inner arc surface of the central annular plate, the opening 63 is completely closed. Conversely, when the door panel 82 completely leaves the C-shaped inner ring surface 814, the opening 63 is completely opened.

[0050] like Figure 14 , Figure 15As shown, the connection method of the three components, namely the water tank 6, the receiving groove 7, and the tank door 8, is as follows: the groove opening 77 is perpendicular to the opening 63 of the tank; the two arc-shaped edges of the arc-shaped opening 74 of the groove body are engaged with the outer wall of the arc-shaped tank body 61; the two straight edges are in line with the outer wall of the tank, forming a seamless fixed connection; with the handle of the door panel 82 facing the left side of the door frame 81, the door panel 82 is placed into the track groove 816 of the door frame 81 from the inner C-shaped ring surface 814; then the inner C-shaped ring surface 814 on the door frame 81 is fitted onto the outer wall of the tank body 61 at the opening 63, so that the outer surface of the sealing ring 62 coincides with the left C-shaped arc of the inner C-shaped ring surface 814; the free end of the door frame 81 is pointed in the opposite direction to the opening of the receiving groove 7; the tank door 8 is vertically tenoned and fixedly connected to the tank body 61.

[0051] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A boat lifting cart, characterized in that: The boat-lifting cart includes a support frame and a rotating wheel. The rotating wheel, propelled by the force of the water flow, rotates in a vertical circular motion around an axle on the support frame. The support frame includes a bearing seat and a rotating shaft. The bearing seat has an axle hole, multiple long legs, and mounting components. The rotating shaft is cylindrical in shape and partially has a circular cross-section. The rotating wheel includes a bushing, spokes, a rim, a water-holding cylinder, a gate, and a support groove. The bushing is a straight tube with mounting components around its perimeter and a bushing hole at its center. The spokes are straight and have [missing information - likely related to water flow]. The device includes mounting components; the rim is curved and has mounting components at both ends; the water tank has a body, opening, sealing ring, chamber, bottom, bottom vent, and mounting components; the groove has a body, opening, chamber, bottom, and mounting components, with the opening facing in the opposite direction to the wheel's forward movement; the door includes a frame, panel, and mounting components, the frame having a track for the panel's movement and a connection to the body; the panel has a handle and a vent.

2. The ship-lifting cart according to claim 1, characterized in that: The rotating shaft on the bracket is inserted into the bushing hole and the shaft hole at the head of the bearing seat on the rotating wheel, and is coaxially and loosely connected with the bushing and bearing seat to form the boat lifting trolley. The feet of the bracket are fixedly connected to a stable foundation. The bracket bears the weight of the rotating wheel and supports the rotating wheel to rotate in a vertical circumference around the rotating shaft on the bracket.

3. The ship-lifting cart according to claim 2, characterized in that: The rotating shaft is horizontally positioned and is inserted into the shaft hole of the shaft seat body to be loosely connected with the shaft seat, thus forming the bracket.

4. The ship-lifting cart according to claim 3, characterized in that: The bearing seat body has a shaft hole with the center line set horizontally, and the cross-section of the shaft hole can be of any shape; the bearing seat has a long leg, and the length of the long leg of the bearing seat is greater than the maximum distance between the outer edge of the wheel and the center of the shaft.

5. The ship-lifting cart according to claim 3, characterized in that: The rotating shaft is in the shape of a long column. The cross-sectional shape of the section of the rotating shaft inserted into the shaft hole matches the cross-sectional shape of the shaft hole. At least one of the cross-sections of the rotating shaft inside and outside the shaft hole is circular. The length of the rotating shaft is greater than the length of the bushing.

6. The ship-lifting cart according to claim 2, characterized in that: The bushing is fixedly connected to one end of the spoke, and the spoke is arranged radially along the warp direction of the bushing; the rim is fixedly connected to the other end of the spoke; the water tank and the support groove are both arranged parallel to the bushing and fixedly connected to the spoke or the rim or the spoke and the rim; the support groove is fixedly connected to the outer wall of the water tank in the same direction; the cylinder door is fixedly connected perpendicularly to the body of the water tank at the cylinder opening; thus forming the wheel.

7. The ship-lifting cart according to claim 6, characterized in that: The bushing is in the shape of a straight tube with a bushing hole along the center line. The cross-sectional shape of the bushing hole matches the cross-sectional shape of the rotating shaft inserted into the bushing hole. The outer wall of the bushing has mounting components in the radial direction. The length of the bushing is less than the length of the rotating shaft.

8. The ship-lifting cart according to claim 6, characterized in that: The water-holding cylinder has a cylinder body, a cylinder opening, a sealing ring, a cylinder chamber, and a bottom vent hole. The cylinder body is formed by seamlessly connecting four cylinder body plates, forming a straight cylinder shape with openings at both ends. The bottom of the cylinder is plate-shaped and has a hole that penetrates the plate thickness. The bottom plate seamlessly seals and fixes one opening of the cylinder body. The enclosed internal hollow space is called the cylinder chamber. The other opening is called the cylinder opening, which communicates with the cylinder chamber. A sealing ring is provided on the cylinder body end face at the cylinder opening. The hole at the bottom of the cylinder is called the bottom vent hole. It has mounting components.

9. The ship-lifting cart according to claim 6, characterized in that: The groove has a groove body, a groove opening, a groove chamber, and a groove bottom; the groove body is formed by seamlessly fixedly connecting four side plates and has two opposite openings; a plate that matches one of the openings seamlessly seals and fixes this opening, and this plate is called the groove bottom; the hollow space inside the groove body formed by the enclosure is called the groove chamber; the other opening is called the groove opening, and the groove opening communicates with the groove chamber; it has mounting components.

10. The ship-lifting cart according to claim 6, characterized in that: The gate includes a door frame and a door panel, and has mounting components; the door frame is ring-shaped and has a structure for connecting to the cylinder body; the door frame has a track groove for the door panel to move back and forth; the inner contour dimension of the door frame is at least sufficient to fully expose the cylinder opening; the peripheral contour dimension of the door panel is at least sufficient to completely block the cylinder opening; the front of the door panel has a door handle; the door panel has a door panel ventilation hole perpendicular to the panel surface and penetrating the thickness of the door panel; the shape and thickness of the door panel match the track groove of the door frame for the door panel to move back and forth; the gate locks automatically when closed, and cannot be opened without external force, preventing people, water, and boats inside the cylinder from exiting through the gate; when the gate is opened, people, water, and boats inside the cylinder can exit smoothly through the gate.

Images