A sailboat

CN224829487UActive Publication Date: 2026-10-09JIANGXI WEIBOTEL BOAT MANUFACTURING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522430888.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-17
Publication Date
2026-10-09
Estimated Expiration
2035-11-17

AI Technical Summary

Technical Problem

[0003]现有帆船技术中,船体依靠伸出船底的固定长度的翼型压载龙骨降低重心来产生稳性,同时翼型压载龙骨有助帆船迎风航行时减少侧漂,但这种设计在使用上有多种不便:船底伸出的压载龙骨增加了船的吃水深度,影响船在浅水区的通过能力,例如不能进入浅水的河口避风;船底伸出的压载龙骨增加了船的吃水深度也令船身不能安稳地在潮退后停放在滩涂上维修船底,当吃水深度大于潮水落差时便不能利用潮差维修船底

Benefits of technology

本实用新型将帆船底部的龙骨内置于帆船底部的安装槽内,在确保龙骨能够保证船体稳定性的前提下,龙骨底部不会突出至船体底部平面下方,从而使得船体吃水深度较浅,能够使得帆船在浅水区通过和停放;本实用新型船体的尾舵和中插板均能够向上转动,从而使得船体在浅水区通过或停放时,尾舵和中插板不会与水底干涉,避免了在浅水区的碰撞,降低了船体通过浅水区时的阻碍。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224829487U_ABST
    Figure CN224829487U_ABST
Patent Text Reader

Abstract

The utility model discloses a sailboat relates to the ship technology field, including the hull, the bottom of hull is equipped with the mounting groove, the mounting groove is fixed with the keel in, the middle interposer swing joint in the both sides of the middle part of hull, the middle interposer can rotate to with the hull lateral wall of the side that is located and is pasted, the rudder is swinged and is equipped with the tail of hull, and the rudder can rotate upwards around the connecting point of being connected with the hull.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of ship technology, and in particular to a sailboat. Background Technology

[0002] Sailing boats are vessels that use wind power to move forward. Modern sailing boats mainly rely on sails to sail with the help of wind. Larger modern sailing boats are equipped with engines to facilitate precise control when entering and leaving ports and docking. The biggest source of power for sailing boats is the "Bernoulli effect" generated by the wind on the sails.

[0003] In existing sailboat technology, the hull relies on a fixed-length wing-shaped ballast keel extending from the hull to lower the center of gravity and generate stability. At the same time, the wing-shaped ballast keel helps the sailboat reduce drift when sailing upwind. However, this design has several inconveniences in use: the ballast keel extending from the hull increases the boat's draft, affecting its ability to pass through shallow waters, such as preventing it from entering shallow river mouths for shelter from the wind; the increased draft of the ballast keel also makes it impossible to stably moor the boat on the mudflats after low tide for hull repairs. When the draft is greater than the tidal range, the tidal range cannot be used to repair the hull.

[0004] Therefore, there is an urgent need to design a technical solution that enables sailboats to pass through and moor in shallow waters. Utility Model Content

[0005] The purpose of this invention is to provide a sailboat to solve the problems existing in the prior art, enabling the sailboat to pass through and moor in shallow waters.

[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides a sailboat, comprising: The hull has a mounting groove at its bottom, and a keel is fixedly installed in the mounting groove. A central insert plate is movably connected to both sides of the middle part of the hull, and the central insert plate can be rotated to fit against the side wall of the hull on the side where it is located; A stern rudder is movably located at the stern of the hull, and the stern rudder is capable of rotating upward about the connection point where it is connected to the hull.

[0007] Preferably, the keel has a concave reinforcement area, and a reinforcement block is fixedly mounted on the reinforcement area.

[0008] Preferably, the hull includes a bottom plate, and side plates are fixedly sealed along the edge of the bottom plate; a deck is provided inside the hull, and the deck is located within the area enclosed by the bottom plate and the side plates; the center plate is located outside the side plates; and the keel is located on the bottom plate.

[0009] Preferably, the deck includes a deck outer shell laminate and a deck inner layer laminate that are fixedly bonded together; the inner side of the deck inner layer laminate is provided with a bonding surface, which overlaps the side plate, and the overlapping area is fixedly bonded with structural adhesive.

[0010] Preferably, a plate shaft is fixedly provided on the side wall of the hull, and the middle plate is passed through the plate shaft. The plate shaft can drive the middle plate to rotate.

[0011] Preferably, the middle insert plate is made of glass fiber blades and is provided with lead ballast.

[0012] Preferably, a mast is fixedly mounted on the deck, and a sail is mounted on the mast; the top of the mast is connected to the bow of the hull via a front support cable, and the top of the mast is connected to the stern of the hull via a rear support cable.

[0013] Preferably, the bottom of the hull is provided with ballast, and the bow of the hull is fixedly provided with a reinforcing block.

[0014] Preferably, the keel and the base plate are connected by a tongue, and an adhesive is provided between the keel and the base plate.

[0015] Preferably, a core layer is fixedly provided inside the side plate; multiple drainage holes are provided on the side plate, and the drainage holes are filled with a resin sealing layer.

[0016] The present invention achieves the following technical advantages over the prior art: This invention integrates the keel of the sailboat into a mounting groove at the bottom of the sailboat. While ensuring the keel's stability, the bottom of the keel does not protrude below the bottom plane of the hull, resulting in a shallow draft and allowing the sailboat to pass through and anchor in shallow water. Furthermore, the stern rudder and center plate of this invention can rotate upwards, preventing them from interfering with the seabed when passing through or anchoring in shallow water, thus avoiding collisions and reducing obstruction when the boat passes through shallow water. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the sailboat structure in one or more embodiments of the present invention; Figure 2This is a partial side view of a sailboat in one or more embodiments of the present invention; Figure 3 This is a top view schematic diagram of a sailboat in one or more embodiments of the present invention; Figure 4 This is a bottom-view schematic diagram of a sailboat in one or more embodiments of the present invention.

[0019] In the diagram: 1-hull, 2-mast, 3-sail, 4-keel, 5-center plate, 6-stern rudder, 7-plate shaft. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] The purpose of this invention is to provide a sailboat to solve the problems existing in the prior art, enabling the sailboat to pass through and moor in shallow waters.

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Existing sailboats rely on a fixed-length wing-shaped ballast keel extending from the hull to lower the center of gravity and achieve stability. However, this keel increases the boat's draft, affecting its ability to navigate shallow waters, such as preventing it from entering shallow river mouths for shelter. The increased draft also prevents the boat from being safely moored on mudflats after low tide for hull repairs. To reduce draft, some existing sailboats have abandoned the keel structure altogether. However, while removing the keel reduces draft, it also decreases stability. Therefore, this invention provides a sailboat that reduces draft while maintaining stability. (Reference) Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the hull includes a hull 1 with a mounting groove at its bottom. A keel 4 is fixedly installed in the mounting groove and is built into the hull 1. In one embodiment, the bottom of the keel 4 is flush with the bottom surface of the hull 1, so that the overall height of the hull 1 is the height of the hull 1 itself. Compared with the traditional structure where a keel 4 extends a certain length from the bottom of the hull 1, the overall height of the hull 1 is reduced, and thus the draft is reduced. A center plate 5 is movably connected to both sides of the middle of the hull 1. The center plate 5 can rotate to fit against the side wall of the hull 1 on the side it is on. A stern rudder 6 is movably located at the stern of the hull 1 and can rotate upward around the connection point between it and the hull 1. This invention integrates the keel 4 at the bottom of the sailboat into the mounting groove at the bottom of the sailboat. While ensuring the stability of the hull 1, the bottom of the keel 4 does not protrude below the bottom plane of the hull 1, thus making the hull 1 have a shallow draft, allowing the sailboat to pass through and stop in shallow water. The stern rudder 6 and the center plate 5 of the hull 1 can both rotate upwards, so that when the hull 1 passes through or stops in shallow water, the stern rudder 6 and the center plate 5 will not interfere with the bottom of the water, avoiding collisions in shallow water and reducing the obstruction when the hull 1 passes through shallow water.

[0024] In one embodiment, in order to further improve the stability of the hull 1, a concave reinforcement area is provided on the keel 4. A reinforcement block is fixed in the reinforcement area. The reinforcement block is made of mature laminate or directly made of a metal fixing block. The design of the reinforcement block improves the strength of the keel 4 and increases the stability of the keel 4, thereby making the hull 1 more stable after the keel 4 is installed and reducing the possibility of the hull 1 capsizing.

[0025] The keel 4 is connected to the bottom of the hull 1, forming a structure that fixes and supports the hull 1. The keel 4 is placed in the middle area of ​​the bottom of the hull 1, thus providing a certain amount of gravity to prevent the hull 1 from capsizing. In order to improve the anti-capsulation capability of the hull 1, the connection between the keel 4 and the hull 1 needs to be as firm and tight as possible, forming a structure similar to an integral piece. To achieve this function, in one embodiment, the keel 4 and the bottom plate are connected by a tongue-and-groove connection. The tongue-and-groove connection is a way of connecting by the tongue and the corresponding structure of other components. The tongue and the corresponding structure engage and cooperate with each other, providing a more reliable connection and keeping the two components in a relatively fixed position, making it less prone to loosening. In order to further improve the firmness and tightness of the connection between the keel 4 and the hull 1, in one embodiment, after the keel 4 is fixedly connected to the mounting groove on the bottom plate by a tongue-and-groove connection, the keel 4 and the bottom plate are then fixed and bonded with adhesive, so that the keel 4 and the hull 1 form a structure similar to an integral piece, which greatly improves the stability of the hull 1.

[0026] In one embodiment, the bottom plate and side plates of the hull 1 are both made of laminate. The laminate can be made of polyester material or vinyl ester resin. The specific material of the laminate is not limited, but it is necessary to ensure that the laminate is compatible with other adhesives and other materials. In this embodiment, the edge of the bottom plate can be fixed and sealed with the side plates by means of snap-fit ​​or riveting, and the connection position can be sealed with adhesive. The hull 1 is provided with a deck, which is located in the area enclosed by the bottom plate and the side plates. Auxiliary devices such as the cockpit are set on the deck.

[0027] To further improve the stability of the hull 1, in one embodiment, ballast material is provided at the bottom of the hull 1, and a reinforcing block is fixedly provided at the bow of the hull 1. Both the ballast material and the reinforcing block can be made of laminate or block metal, thereby improving the stability of the hull 1.

[0028] In one embodiment, the deck includes a deck outer shell laminate and a deck inner layer laminate that are fixedly bonded together. The inner side of the deck inner layer laminate has a bonding surface that overlaps the side panel, and the overlapping area is fixedly bonded with a structural adhesive. The overlapping method of the bonding surface of the deck and the side panel is similar to a shoebox-type connection structure. The shoebox-type connection method is similar to the fitting method of a shoebox lid and the box body. Quick assembly is achieved through the interlocking of the components and the edge grooves. After connection, in order to improve the sealing and firmness of the connection, an adhesive is used to bond and fix the connection area.

[0029] To enable the rotation of the middle insert plate 5, in one embodiment, an insert plate shaft 7 is fixedly installed on the side wall of the hull 1, through which the middle insert plate 5 passes. The insert plate shaft 7 can drive the middle insert plate 5 to rotate. One feasible implementation is to install a handle on the end of the insert plate shaft 7 away from the middle insert plate 5. By manually turning the handle, the insert plate shaft 7 can be rotated, thereby driving the middle insert plate 5 to rotate. To ensure that the middle insert plate 5 can be fixed in the desired position, a retractable locking block or a locking structure can be provided at the connection between the side wall of the hull 1 and the insert plate shaft 7. The locking block or locking structure can lock the insert plate shaft 7. When it is necessary to rotate the insert plate shaft 7, simply open the locking block or locking structure to release the restriction on the insert plate shaft 7, and then the rotation of the insert plate shaft 7 can be achieved. In another feasible implementation, a motor can be installed inside the hull 1, and the output shaft of the motor is fixedly connected to one end of the insert plate shaft 7, so that the rotation of the insert plate shaft 7 can be automatically controlled by the motor.

[0030] When the sailboat is traveling in deep water, the insert shaft 7 controls the center insert plate 5 to be perpendicular to the length direction of the hull 1. The center insert plate 5 is vertically inserted into the water. In this embodiment, the center insert plate 5 is made of fiberglass blades and is equipped with lead ballast. Thus, the two center insert plates 5 on both sides of the hull 1 can further improve the stability of the hull 1. Since the center insert plate 5 is vertically inserted into the water and parallel to the direction of the sailboat's movement, the center insert plate 5 can play a certain role in cutting through the water, thereby cutting through the water in the direction of movement and reducing the sailboat's resistance. When the sailboat needs to pass through shallow water... By rotating the insert shaft 7, the middle insert plate 5 is driven to rotate upward until it fits against the side wall of the hull 1. At this time, the end of the middle insert plate 5 that was originally used to break through the water in the forward direction rotates to the bottom, and the lowest end of the middle insert plate 5 is flush with the lowest end of the hull 1, so it will not obstruct the hull 1 from passing through the shallow water area. In order to make the width of the hull 1 smaller, in one embodiment, a concave receiving area is provided on the outer side wall of the hull 1. When passing through the shallow water area, the middle insert plate 5 can rotate to be located exactly in the receiving area, thereby making the side wall of the hull 1 a smooth linear structure and reducing the overall resistance of the hull 1.

[0031] In this embodiment, the stern rudder 6 is also rotatable. The stern rudder 6 is mounted on a mounting bracket, which is connected to the stern of the hull 1 via a hinge, or the mounting bracket is sleeved onto the drive shaft at the stern of the hull 1. Thus, the stern rudder 6 can be driven to rotate upwards via the hinge structure or drive shaft. After rotating upwards, the contact area between the stern rudder 6 and the water decreases, preventing interference with the hull 1's passage through shallow water. When navigating in deep water, the stern rudder 6 rotates downwards until it is within the water. When the stern rudder 6 surface deflects at an angle relative to the fluid, the fluid velocity differs on both sides of the rudder surface, creating a pressure difference and generating a lateral force (i.e., rudder force). This force is transmitted to the hull 1 through the rudder stock, causing the hull 1 to rotate around its center of gravity or pivot point, thereby achieving steering of the hull 1.

[0032] The main power of the sailboat is the sail 3, which uses wind power to move forward. Therefore, in this embodiment, a mast 2 is fixedly installed on the deck, and a sail 3 is installed on the mast 2. The top of the mast 2 is connected to the bow of the hull 1 through a front support cable, and the top of the mast 2 is connected to the stern of the hull 1 through a rear support cable. The structures such as the sail 3 and the mast 2 are mature technologies, so they will not be described in detail.

[0033] In one embodiment, a core layer is fixedly provided inside the side plate; multiple drain holes are provided on the side plate, and the drain holes are filled with a resin sealing layer. Specifically, the core layer is dug out at the drain holes of the side plate, and the hollowed-out area is filled with thick resin to seal the drain holes. Normally, it is in a sealed structure, and when sewage needs to be discharged, only the corresponding drain hole needs to be opened.

[0034] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A sailboat, characterized in that: include: The hull has a mounting groove at its bottom, and a keel is fixedly installed in the mounting groove. A central insert plate is movably connected to both sides of the middle part of the hull, and the central insert plate can be rotated to fit against the side wall of the hull on the side where it is located; A stern rudder is movably located at the stern of the hull, and the stern rudder is capable of rotating upward about the connection point where it is connected to the hull.

2. The sailboat according to claim 1, characterized in that: The keel has a recessed reinforcement area, and a reinforcement block is fixedly installed in the reinforcement area.

3. The sailboat according to claim 1, characterized in that: The hull includes a bottom plate, and side plates are fixedly sealed along the edge of the bottom plate; a deck is provided inside the hull, and the deck is located within the area enclosed by the bottom plate and the side plates; a center plate is located outside the side plates; and the keel is located on the bottom plate.

4. The sailboat according to claim 3, characterized in that: The deck includes a deck outer shell laminate and a deck inner layer laminate that are fixedly bonded together; the inner side of the deck inner layer laminate has a bonding surface, which overlaps the side plate, and the overlapping area is fixedly bonded with structural adhesive.

5. The sailboat according to claim 1, characterized in that: A plate shaft is fixedly installed on the side wall of the hull, and the middle plate passes through the plate shaft. The plate shaft can drive the middle plate to rotate.

6. The sailboat according to claim 1, characterized in that: The middle insert plate is made of fiberglass blades and is equipped with lead ballast.

7. The sailboat according to claim 3, characterized in that: A mast is fixedly mounted on the deck, and a sail is mounted on the mast; the top of the mast is connected to the bow of the hull via a front support cable, and the top of the mast is connected to the stern of the hull via a rear support cable.

8. The sailboat according to claim 1, characterized in that: Ballast material is provided at the bottom of the hull, and a reinforcing block is fixedly provided at the bow of the hull.

9. The sailboat according to claim 3, characterized in that: The keel and the base plate are connected by a tongue, and an adhesive is provided between the keel and the base plate.

10. The sailboat according to claim 3, characterized in that: A core layer is fixedly provided inside the side plate; multiple drainage holes are provided on the side plate, and the drainage holes are filled with a resin sealing layer.