High-air-pressure narrow ship bottom counterweight ship

Abstract

The invention discloses an inflatable torrent canoeing (hereafter referred to as the canoeing) high-pressure narrow-bottom counterweight boat with a narrow boat body and a U-shaped boat bottom, and belongs to the field of portable backpack boats, the inflatable torrent canoeing high-pressure narrow-bottom counterweight boat comprises an inflatable tubular body, the tubular body is provided with a bow, a middle section and a stern, and the bow, the middle section and the stern are sequentially connected; the middle section comprises a bottom plate and two side pipes, and the two side pipes are symmetrically arranged on the two sides of the bottom plate; a central seat area is formed between the bottom plate and the two side pipes; the side pipe is composed of at least two side wall branch pipe parts; for a single side pipe, the side wall branch pipe parts are sequentially connected into a whole in the vertical direction. The section, perpendicular to the central axial direction, of each side pipe is in an oval shape or an oval-like shape. The ship side walls and the bottom plate are combined, the section of the middle section in the vertical direction is similar to a U shape, the performance of the high-air-pressure narrow type ship bottom balance weight ship is improved through the structure, and better secondary stability and agility are achieved. According to the inflatable torrent canoe, a user can easily use Eski to roll over in torrent, and the purpose of self rescue is achieved.

Description

Technical Field

[0001] The present invention relates to the field of portable backpack boats, in particular to a high-pressure narrow-bottom counterweight boat. More specifically, the present application provides an inflatable kayak, in particular an inflatable whitewater kayak, product code: MRS Killer Whale, which can reliably perform Eskimo rolls. Background Art

[0002] The modern kayak originated from the hunting canoe traditionally used by the Eskimos, which was made of animal skins on a wooden frame. A kayak is a type of canoe, which is a small canoe paddled with a double-bladed paddle and has a low sitting position. The Eskimo roll is a self-rescue method used by the Eskimos when their canoe capsizes during hunting.

[0003] Among modern hard-water kayakers, the Eskimo roll technique is the best way to save yourself when the kayak capsizes unexpectedly. Those who are proficient in this technique can turn the kayak over by underwater movements when it capsizes in the rapids, restore it to normal, and prevent the separation of the kayak and the boat (in the rapids, if the separation of the kayak and the boat occurs, it may cause drowning for a short time). The mature application of the Eskimo roll technique greatly ensures the safety of the kayakers in the rapids, and it is a skill that advanced kayakers must master.

[0004] For hard-water kayaks, based on the shape of the kayak itself, the user can achieve a reliable Eskimo roll. However, for existing inflatable kayaks such as backpack boats, even if the user has the skills of Eskimo roll, it is difficult to reliably achieve Eskimo roll, and the user may fail to successfully roll over at a critical moment. Therefore, the present application provides a high-pressure narrow-bottom counterweight boat that can help users achieve Eskimo rolls more reliably. Summary of the invention

[0005] The object of the present invention is to provide an inflatable whitewater kayak with a novel structure so as to improve the agility performance and secondary stability of the whitewater kayak and complete the Eskimo roll with high reliability.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: A high-pressure narrow-bottom counterweight boat comprises an inflatable and deflable tubular body, the tubular body having a bow, a middle section and a stern, the bow, the middle section and the stern being connected in sequence; the middle section comprises a bottom plate and side tubes, the side tubes are two and the two side tubes are symmetrically arranged on both sides of the bottom plate; a central seat area is formed between the bottom plate and the two side tubes; The side tube is composed of at least two side wall branch tubes; in terms of a single side tube, the side wall branch tubes are sequentially connected in a vertical direction to form a whole; the cross section of the side tube perpendicular to its central axis is elliptical or quasi-elliptical; The side tubes are combined with the bottom plate, and the cross section of the middle section along the vertical direction is U-shaped.

[0007] The cross section of the side tube along a plane perpendicular to the central axis of the side tube is in a rugby shape.

[0008] The height of the side tube is greater than the width of the side tube.

[0009] The bottom plate is made of flexible material.

[0010] The cross section of the side wall branch pipe portion is circular, elliptical or quasi-elliptical.

[0011] The existing cylindrical side tube is changed into a side tube with an elliptical or quasi-elliptical cross section.

[0012] By arranging a tie rod inside the side tube, the side tube is shaped into an elliptical or quasi-elliptical shape.

[0013] The side pipe comprises a first branch pipe outer wall and a first branch pipe tie bar. There is at least one first branch pipe tie bar, which is arranged inside the first branch pipe outer wall. The first branch pipe tie bar and the inner side of the first branch pipe outer wall, and the space between two adjacent first branch pipe tie bars and the inner side of the first branch pipe outer wall respectively constitute a side wall branch pipe portion. Or the side pipe is composed of at least two mutually independent side wall branch pipe parts; two adjacent side wall branch pipe parts are connected in sequence along the vertical direction by gluing or sewing.

[0014] The number of the first branch pull bars is 2 to 9.

[0015] The side pipe is composed of 3 to 10 side wall branch pipe parts which are sequentially connected into one piece along the vertical direction.

[0016] The width of the central seating area is slightly greater than the user's body width.

[0017] It also includes an inflatable bottom bulge, which is arranged on the bottom plate.

[0018] The inflatable bottom support plate is arranged at the normal draft position of the bottom of the boat.

[0019] Also included are footrests disposed within the bow.

[0020] A solution can be added into the pedal to adjust the weight of the pedal.

[0021] It also includes a transition section, and the bow and the middle section, and the middle section and the stern are connected respectively through the transition sections.

[0022] One end of the transition section connected to the middle section is elliptical or quasi-elliptical, and one end of the transition section connected to the bow or stern is circular.

[0023] Between the bow and the middle section, the end of the transition section connected to the middle section is elliptical or quasi-elliptical, and the end of the transition section connected to the bow is circular; Or between the stern and the middle section, the end of the transition section connected to the middle section is elliptical or quasi-elliptical, and the end of the transition section connected to the stern is circular.

[0024] When the high-pressure narrow-bottom counterweight boat is in an inflated and naturally stationary state, along the direction from the middle section to the bow, the bow is relatively tilted relative to the bottom plate; When the high-pressure narrow-bottom counterweight boat is in an inflated and naturally stationary state, the stern is tilted relative to the bottom plate along the direction from the middle section to the stern.

[0025] The horizontal plane where the end of the bow away from the middle section is located is above the horizontal plane where the end of the bow close to the middle section is located; The horizontal plane where the end of the stern away from the middle section is located is above the horizontal plane where the end of the stern close to the middle section is located.

[0026] The application of the aforementioned high pressure narrow bottom counterweight ship.

[0027] This high pressure narrow bottom counterweight boat is used in calm current or rapid current. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will now be described by way of example with reference to the accompanying drawings, in which: Figure 1 This is a front view of the high-pressure narrow-bottom counterweight ship in Example 1.

[0029] Figure 2 This is a rear view of the high-pressure narrow-bottom counterweight ship in Example 1.

[0030] Figure 3 It is a top view of the high-pressure narrow-bottom counterweight ship in Example 1.

[0031] Figure 4 This is a bottom view of the high-pressure narrow-bottom counterweight ship in Example 1.

[0032] Figure 5 It is a right side view of the high pressure narrow bottom counterweight ship in Example 1.

[0033] Figure 6 It is a left view of the high-pressure narrow-bottom counterweight ship in Example 1.

[0034] Figure 7 It is a schematic diagram of the partial deployment principle of the high-pressure narrow-bottom counterweight ship in Example 1.

[0035] Figure 8 for Figure 7 Schematic diagram of the structure after removing the outer wall of the first branch pipe.

[0036] Fig. 9 for Figure 8 A two-dimensional line graph of .

[0037] Fig.10 It is a schematic cross-sectional view of the middle section of the high-pressure narrow-bottom counterweight ship in the present application along the vertical direction.

[0038] Markings in the figure: 1. bow, 2. middle section, 3. stern, 4. outer wall of the first branch pipe, 5. first branch pipe tie rod, 6. transition section. DETAILED DESCRIPTION

[0039] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0040] Any feature disclosed in this specification, unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features. Example

[0041] Ship stability refers to the ability of a ship to resist external forces and restore its original equilibrium state when the external torque is eliminated. When a ship is sailing, it may encounter disturbances from various external forces such as wind and waves, and the equilibrium state of the ship will be destroyed. When a ship is subject to external torque, it will tilt. At this time, a ship with appropriate stability will generate a restoring torque under the combined action of buoyancy and its own gravity to offset the effect of the external torque to prevent the tilt from continuing to expand. When the external torque is eliminated, the restoring torque restores the ship (after a certain periodic swing) to its original equilibrium position.

[0042] At present, the existing backpack boats usually adopt a flat bottom design, and the middle section of the two ends adopts a cylindrical design. The adoption of this structure is conducive to improving the static stability of the ship. Based on the structural advantages of the existing backpack boats, it has strong stability in static waters, can effectively maintain its own balance, and prevent the occurrence of flipping. This stability is called initial stability or primary stability.

[0043] This design with high initial stability has high stability, but also has the problem of poor control and agility. Usually, the rower tends to rely on the stability of the boat itself, which limits the rower's ability to develop a higher level of technology.

[0044] At the same time, ships with high initial stability also have their own limitations. When the hull reaches a certain tilt in high rapids and waves, the righting moment will suddenly decrease, catching people off guard and easily capsizing. Therefore, people began to pay attention to the secondary stability of ships.

[0045] However, it is very difficult to use Eskimo roll to right the boat with such high initial stability, and the success rate is not high, so it is difficult to use it as a reliable self-rescue method. The main reason is that due to the large buoyancy and high initial stability, the torsional resistance of Eskimo roll will also be large. To make the kayak easy to Eskimo roll, a boat design with high secondary stability and medium primary stability should be adopted.

[0046] Whitewater refers to the white foam produced by the collision of flowing water and rocks. It is often used to refer to rapid waters. Compared with static waters, whitewater has the characteristics of rapid currents. When existing backpacking boats are used for whitewater rafting, once they capsize, the rowers will be in the water. At this time, due to the stability of the existing backpacking boats themselves, it is difficult for users to achieve self-rescue through Eskimo rolls.

[0047] As mentioned above, the Eskimo roll is mainly used in hard-water kayaks. Due to the characteristics of hard-water kayaks, it is relatively easy to achieve the Eskimo roll. On the other hand, hard-water kayaks are made of rigid materials and cannot be effectively stored, which limits its application to a certain extent.

[0048] In response to the above problems, as shown in the figure, the present application provides a high-pressure narrow-bottom counterweight boat, which is essentially a backpack boat. However, based on the existing backpack boats, it can make it easier for users to perform Eskimo rolls, thereby effectively expanding its scope of application.

[0049] The high-pressure narrow-bottom counterweight boat of this embodiment comprises an inflatable and deflable tubular body, which has a bow, a middle section and a stern, and the bow, the middle section and the stern are sequentially connected as a whole. The middle section comprises a bottom plate and two side tubes, and the two side tubes are symmetrically arranged on both sides of the bottom plate; a central seat area is formed between the bottom plate and the two side tubes.

[0050] In this embodiment, the side tube is composed of at least two side wall branch tubes; for a single side tube, the side wall branch tubes are sequentially connected in the vertical direction to form a whole; the cross section of the side tube along the axis perpendicular to the center thereof is elliptical or quasi-elliptical. The cross section of the side wall branch tube is circular, elliptical or quasi-elliptical. The height of the side tube is greater than the width of the side tube, that is, the cross section of the side tube is elliptical or quasi-elliptical, which is long at the top and bottom and narrow in the middle.

[0051] In a specific example, the side tube is composed of three side wall branch tubes; the side tube includes a first branch tube outer wall and a first branch tube tie rod, there are two first branch tube tie rods, the first branch tube tie rods are arranged inside the first branch tube outer wall, and the side wall branch tubes are formed between the first branch tube tie rod and the inner side of the first branch tube outer wall, and between two adjacent first branch tube tie rods and the inner side of the first branch tube outer wall. As shown in the figure, the first branch tube tie rods are arranged in the vertical direction to divide the first branch tube outer wall into three cavities, that is, to form three side wall branch tubes. Based on the effect of the first branch tube tie rods, the side tube is formed into a structure with an elliptical or quasi-elliptical cross-section. In this structure, the cylindrical side tubes in the existing backpack boat are changed to the side tubes with an elliptical or quasi-elliptical cross-section in the present application.

[0052] In the present application, the structure and line shape of the inflatable whitewater kayak are adjusted, and the performance of the hard whitewater kayak is achieved in a similar manner with the inflatable structure. Based on the improvement of the aforementioned structure, the width of the hull can be narrowed. The present application adds a tie bar inside the inflatable boat side on both sides of the boat (i.e., the first branch pipe tie bar is set inside the outer wall of the first branch pipe), and the circular cross-section of the inflatable boat side is shaped into an ellipse or a quasi-ellipse (the long axis of the ellipse or the quasi-ellipse is set in the vertical direction) to reduce the width of the hull, which is beneficial to paddling efficiency and hull control.

[0053] Based on the improved structure, the rolling resistance of the boat in the present application becomes smaller when it turns over in an Eskimo roll. In the prior art, the simplest way to reduce the buoyancy of the boat is to make the boat smaller, but the human body cannot be reduced, so this method is not feasible. The present application changes the cylinders on both sides of the boat side into an elliptical boat side. Under the premise of keeping the height unchanged, the boat side becomes narrower, so that the rolling resistance becomes smaller when it turns over in an Eskimo roll.

[0054] At the same time, the cross-section of the improved middle section of the hull is similar to a U-shape, which effectively improves the secondary stability. As mentioned above, the existing backpack boats are very stable in flat water and waves, that is, they have good primary stability, but in fierce rapids, after the hull reaches a certain inclination, the righting torque will suddenly decrease, which will catch people off guard, easily capsize, and make it more difficult for the Eskimo to roll over and save itself. The bottom of the boat of the present application is slightly curved, combined with the side tubes on both sides, and the whole is U-shaped. In the present application, the secondary stability of the hull is very good, which will give the paddler greater freedom of control. Although the stability of the hull mainly depends on the user's own balance, this will further develop and stimulate the paddler's control level, which is impossible for existing backpack boats.

[0055] Furthermore, the present application can improve the overall shape of the hull and ensure its rigidity. Generally, narrowing the side of the ship will affect the rigidity of the hull, but the present application uses internal braces to grade the shape between the narrow side of the ship and the bow, and between the narrow side of the ship and the stern (that is, the first branch brace is set inside the outer wall of the first branch), so that the shape achieves a smooth transition and meets the requirements of both the streamline shape and the rigidity of the hull.

[0056] As an alternative, the side tube is composed of at least two independent side wall branch tubes; two adjacent side wall branch tubes are connected in sequence in the vertical direction by gluing or sewing. In this way, the cross-section of the side wall branch tube is circular, elliptical or quasi-elliptical, and is connected as a whole by gluing or sewing to form a side tube, and the cross-section of the side tube is elliptical or quasi-elliptical.

[0057] The bottom plate is made of flexible material, and the internal width of the central seat area of ​​the hull is slightly larger than the user's body width, ensuring sufficient comfort; at the same time, the cross-section of the bottom plate in the middle section and the side tubes on both sides thereof are U-shaped in the vertical direction. In a specific example, the external width of the hull in the central seat area is about 65cm-75cm, preferably 65cm-70cm. Furthermore, it also includes an inflatable bottom support plate, which is arranged on the bottom of the boat (flexible material). With this structure, the cross section of the bottom of the boat is shaped into a smoothly transitioned U-shape, which improves the secondary stability, which is beneficial for the paddler to improve the ability to control the roll angle of the kayak.

[0058] In this embodiment, the inflatable bottom bulge is only arranged at the position of the boat bottom where the boat is normally drafted. At the same time, the inflatable bottom bulge is not arranged at the bow and stern raised positions, and only the bottom skin is arranged, so as to reduce the weight and maintenance difficulty and increase the space inside the boat.

[0059] Furthermore, it also includes a transition section, and the bow and the middle section, and the middle section and the stern are connected by transition sections. Specifically, between the bow and the middle section, the end of the transition section connected to the middle section is elliptical or quasi-elliptical, and the end of the transition section connected to the bow is circular; between the stern and the middle section, the end of the transition section connected to the middle section is elliptical or quasi-elliptical, and the end of the transition section connected to the stern is circular.

[0060] Furthermore, when the high-pressure narrow-bottom counterweight boat is inflated and naturally stationary, along the direction from the middle section to the bow, the bow is relatively tilted relative to the bottom plate, that is, the horizontal plane at the end of the bow away from the middle section is located above the horizontal plane at the end of the bow close to the middle section. When the high-pressure narrow-bottom counterweight boat is inflated and naturally stationary, along the direction from the middle section to the stern, the stern is relatively tilted relative to the bottom plate, that is, the horizontal plane at the end of the stern away from the middle section is located above the horizontal plane at the end of the stern close to the middle section.

[0061] It should be noted that after the high-pressure narrow-bottom counterweight boat is inflated, the bow and stern will tilt upwards compared to the middle section of the high-pressure narrow-bottom counterweight boat. This has nothing to do with whether the high-pressure narrow-bottom counterweight boat is stationary or in rapids. The aforementioned assumption that it is in a naturally stationary state is only for the convenience of description and is not limiting. It should be noted that when the high-pressure narrow-bottom counterweight boat is inflated, even if it is subjected to external forces, the high-pressure narrow-bottom counterweight boat itself will maintain a relatively fixed shape. The use of this structure helps to reduce the burial of the bow, which is helpful for crossing waves, is conducive to meeting the needs of rapids, and improves the heading stability.

[0062] In the present application, the design of raised bow and stern, combined with the structural improvement of the middle section, is conducive to the adjustment of the center of gravity, which is beneficial to the completion of the Eskimo roll; at the same time, the structure helps to lift the bow when rushing through glassy waves; further, the overall structural design, with a relatively raised bow and stern, can also make the draft of the middle section deeper, which is conducive to improving secondary stability.

[0063] Furthermore, it also includes pedals arranged in the bow. Easily accessible river water can be added to the pedals to adjust the weight of the pedals. Since the new inflatable whitewater kayak of the present application is very light, the overall center of gravity of the boat and the paddlers is concentrated in the middle section, the bow and the stern are lighter, and the inertial potential energy of the bow is small; when the bow collides with the rapids, the bow is easily tilted and difficult to control. If the stability of the bow is to be increased, the most ideal way is to add weight to the lower part of the bow. Since water is easily accessible, the present application also includes pedals arranged in the bow, which can be filled with water and the capacity can be adjusted. The use of this structure not only satisfies the function of the pedals, but also increases the weight of the bow, so that the inertial potential energy of the bow is increased, the stability of the bow is improved, and it is beneficial to control. Through experiments, the appropriate weight of water can be filled to adjust the heading stability of the hull to an easy-to-control range.

[0064] Compared with existing backpack boats, the present application has the following advantages.

[0065] Firstly, the high-pressure narrow-bottom counterweight boat of the present application can reliably perform Eskimo rolls.

[0066] Actual test results show that: on the inflatable whitewater kayak of the present application, the user can easily use the Eskimo roll in the whitewater to achieve the purpose of self-rescue, and the technical essentials and success rate are close to those of the hard whitewater kayak, which is impossible to achieve with existing backpack boats.

[0067] Secondly, the high-pressure narrow-bottom counterweight boat of the present application can achieve performance similar to that of a rigid whitewater boat, including higher agility after improving power transmission efficiency and the ability to significantly control the roll angle.

[0068] Specifically, due to the narrower hull and flexible roll angle control capability of the high-pressure narrow-bottom counterweight boat of the present application (specifically, often referred to as secondary stability in the field of kayaking), it can achieve flexible and agile control response in rapids, giving full play to the user's technical level.

[0069] Again, the high-pressure narrow-bottom counterweight boat of the present application can be carried flexibly.

[0070] The inflatable whitewater kayak of the present application is easy to carry, and together with the whitewater kayak related auxiliary equipment, the backpack can be fully equipped, and the weight is about less than half of the rigid whitewater kayak. The application can achieve more flexible itineraries and diversified tasks, and expand the application scope of backpack boats.

[0071] Finally, for beginners, the high-pressure narrow-bottom counterweight boat rig of the present application may fail to roll over and be forced to get out of the kayak by themselves. When this happens to a hard-water kayak, water usually enters the hull from the hatch and the hull is in a suspended state. At this time, the user needs to drag the hull to the shore to dump the water, which is very physically demanding.

[0072] The inflatable whitewater kayak of the present application will retain buoyancy in the water even if it escapes from the water, and the paddler can use its buoyancy to avoid the whitewater and then reach a calm place; at the same time, the user can climb into the high-pressure narrow-bottom counterweight boat in the water, paddle to the shore and pour water, which consumes less physical energy. Based on the improved structure, it is easier for paddler who is in the learning stage to master the corresponding roll.

[0073] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A high-pressure narrow-bottom counterweight boat, comprising an inflatable and deflable tubular body, the tubular body having a bow, a middle section and a stern, the bow, the middle section and the stern being connected in sequence; the middle section comprising a bottom plate and side tubes, the side tubes being two and symmetrically arranged on both sides of the bottom plate; a central seating area being formed between the bottom plate and the two side tubes; It is characterized in that The side tube is composed of at least two side wall branch tubes; in terms of a single side tube, the side wall branch tubes are sequentially connected in a vertical direction to form a whole; the cross section of the side tube perpendicular to its central axis is elliptical or quasi-elliptical; The side tubes are combined with the bottom plate, and the cross section of the middle section along the vertical direction is U-shaped.

2. The high pressure narrow bottom counterweight ship according to claim 1, characterized in that: The bottom plate is made of flexible material.

3. The high pressure narrow bottom counterweight ship according to claim 1, characterized in that: The cross section of the side wall branch pipe portion is circular, elliptical or quasi-elliptical.

4. The high pressure narrow bottom counterweight ship according to any one of claims 1 to 3, characterized in that: By arranging a tie rod inside the side tube, the side tube is shaped into an elliptical or quasi-elliptical shape.

5. The high pressure narrow bottom counterweight ship according to claim 4, characterized in that: The side pipe comprises a first branch pipe outer wall and a first branch pipe tie bar. There is at least one first branch pipe tie bar, which is arranged inside the first branch pipe outer wall. The first branch pipe tie bar and the inner side of the first branch pipe outer wall, and the space between two adjacent first branch pipe tie bars and the inner side of the first branch pipe outer wall respectively constitute a side wall branch pipe portion. Or the side pipe is composed of at least two mutually independent side wall branch pipe parts; two adjacent side wall branch pipe parts are connected in sequence along the vertical direction by gluing or sewing.

6. The high-pressure narrow-bottom counterweight ship according to claim 1, characterized in that: It also includes an inflatable bottom bulge, which is arranged on the bottom plate.

7. The high pressure narrow bottom counterweight ship according to claim 1, characterized in that: Also included are footrests disposed within the bow.

8. The high pressure narrow bottom counterweight ship according to any one of claims 1 to 7, characterized in that: It also includes a transition section, and the bow and the middle section, and the middle section and the stern are connected respectively through the transition sections.

9. The high-pressure narrow-bottom counterweight ship according to claim 8, characterized in that: One end of the transition section connected to the middle section is elliptical or quasi-elliptical, and one end of the transition section connected to the bow or stern is circular.

10. The high pressure narrow bottom counterweight ship according to any one of claims 1 to 9, characterized in that: When the high-pressure narrow-bottom counterweight boat is in an inflated and naturally stationary state, along the direction from the middle section to the bow, the bow is relatively tilted relative to the bottom plate; When the high-pressure narrow-bottom counterweight boat is in an inflated and naturally stationary state, the stern is tilted relative to the bottom plate along the direction from the middle section to the stern.

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