Portable water vehicle

Abstract

The utility model discloses a portable water carrier which comprises a single-piece plate, the plate is sequentially divided into a front section, a middle section and a rear section in the length direction, and transverse creases are arranged between the front section and the middle section and between the middle section and the rear section respectively. A central longitudinal crease and a top surface longitudinal crease are symmetrically arranged on the middle section in the length direction; the front section is symmetrically provided with a front section longitudinal crease, a front section inner inclined crease and a front section outer inclined crease in the length direction. The size of the front section is reduced by gathering the inner inclined crease and the outer inclined crease of the front section, the size of the rear section is reduced by gathering the inner inclined crease and the outer inclined crease of the rear section, then the folded front section and the folded rear section are overlapped towards the middle section, and meanwhile the middle section is folded along the center longitudinal crease and the top face longitudinal crease. And therefore, the front section and the rear section are wrapped in a box-shaped accommodating space formed by folding the middle section. According to the utility model, the volume of the carrier in a storage state can be greatly reduced, and the portability is improved.

Description

Technical Field

[0001] This utility model relates to the field of water vehicles, specifically a portable water vehicle. Background Technology

[0002] Kayaks are traditional watercraft originating in the Arctic Circle, first made by the Inuit people from seal skins and wooden frames for hunting and migration. Over thousands of years of evolution, their function has expanded from a survival tool to a modern competitive and recreational sport—with segmentation into scenarios such as flatwater racing, whitewater trekking, and long-distance ocean sailing, driving innovation in kayak design and materials.

[0003] Modern kayaks prioritize lightweight and high strength. The mainstream materials have evolved from early solid wood to PVC (polyvinyl chloride) and Kevlar composites, with high-end products using carbon fiber. This reduces the hull weight to 10-20 kg while maintaining impact resistance and watertightness. Modern kayaks can be structurally divided into rigid-hull kayaks (fixed frame + skin) and folding kayaks (foldable frame + flexible skin). The former offers stable performance, while the latter provides superior portability.

[0004] However, regardless of whether it's a hard-shell or folding kayak, "difficulty in storage" remains a hidden bottleneck to its widespread adoption. Hard-shell kayaks, due to their unibody design, require complete disassembly of components such as the paddles and seats for storage, and even when folded, they are still quite bulky, making them difficult to fit in the trunk of a typical car. While folding kayaks are smaller when folded, in practice, the frame needs to be folded layer by layer and the skin organized, which is time-consuming. Frequent folding can also cause deformation of the metal frame and wear on the skin, increasing maintenance costs. This problem is particularly prominent among family users and outdoor enthusiasts—the contradiction between the "sports attributes" of kayaks and "everyday storage" is becoming a key shortcoming hindering their spread from professional fields to the general public. Utility Model Content

[0005] This utility model aims to solve the technical pain points of existing watercraft being large in size, inconvenient to store, and cumbersome to operate, and provides a portable watercraft that is significantly smaller in size when stored, taking into account the convenience of daily carrying and storage.

[0006] This utility model provides a portable watercraft, including a single sheet material with multiple pre-set creases, which can be folded along the creases to switch between a stowed state and an unfolded state;

[0007] The board material is divided into a front section, a middle section, and a rear section along its length. Horizontal creases are provided between the front and middle sections, and between the middle and rear sections. The middle section has a central longitudinal crease and a top longitudinal crease symmetrically arranged along its length. The front section has a front longitudinal crease, a front inner oblique crease, and a front outer oblique crease symmetrically arranged along its length. The rear section has a rear longitudinal crease, a rear inner oblique crease, and a rear outer oblique crease symmetrically arranged along its length. The central longitudinal crease connects to both the front and rear longitudinal creases; the front inner oblique crease intersects with the front outer oblique crease and merges with the central longitudinal crease; the rear inner oblique crease intersects with the rear outer oblique crease and merges with the central longitudinal crease.

[0008] In the stowed state, the front inner oblique crease, the front outer oblique crease, the rear inner oblique crease, the rear outer oblique crease, and their respective symmetrical creases on the other side approach and converge with each other. The front and rear sections of the plate are folded towards the middle section along the transverse creases, and finally stacked and stored in the box-shaped storage space formed by folding the middle section through the central longitudinal crease and the top longitudinal crease. In the unfolded state, the front inner oblique crease, the front outer oblique crease, the rear inner oblique crease, the rear outer oblique crease, and their respective symmetrical creases on the other side unfold away from each other.

[0009] Preferably, the inner oblique crease of the front section converges from the end of the front section of the board towards the middle section of the board, and the outer oblique crease of the front section diverges from the end of the front section of the board towards the middle section of the board; the inner oblique crease of the rear section converges from the end of the rear section of the board towards the middle section of the board, and the outer oblique crease of the rear section diverges from the end of the rear section of the board towards the middle section of the board.

[0010] Preferably, it also includes a floor that is detachably connected to the single-piece panel, the floor having a reinforcing structure that is staggered with the central longitudinal fold; the floor can be attached to the inside or outside of the box formed by folding the panel in the detached state, and the floor is installed in the middle section of the panel in the use state.

[0011] Preferably, the floor has at least one floor crease parallel to the transverse crease, and the floor can be folded along the floor crease.

[0012] Preferably, the middle section has symmetrical bottom longitudinal creases along its length, the bottom longitudinal creases being located between the central longitudinal crease and the top longitudinal crease, and are approximately parallel to the central longitudinal crease and the top longitudinal crease; each side panel is connected to one side panel in the transverse direction of the middle section of the board, the side panel extending from the edge of the middle section of the board to near the bottom longitudinal crease; when the floor is installed on the middle section of the board, the two side panels respectively abut against the two sides of the floor.

[0013] Preferably, the device further includes a back panel and a seat. The back panel is hinged to the floor and foldable towards the floor. The seat includes a seat surface disposed on the floor and a backrest disposed on the back panel. When the floor is installed in the middle section of the board, the back panel forms an angle of not less than 90° with the floor. The two sides of the floor are confined in the gap formed by the longitudinal fold of the side and the end face of the side panel. The back panel is confined between a limiting member and the side panel. The limiting member is configured as a detachable connection structure connecting the two sides in the transverse direction of the middle section of the board. The two sides of the backrest are respectively connected to the corresponding positions on the transverse sides of the middle section of the board.

[0014] Preferably, it also includes a foot pedal. In the unfolded state of the vehicle, the foot pedal is installed at the front of the vehicle and connected to the front end of the vehicle. The two ends of the foot pedal are respectively connected to the two sides of the middle section of the plate in the transverse direction.

[0015] Preferably, the front section of the plate has a left front piece and a right front piece on the side away from the middle section of the plate, and the rear section of the plate has a left rear piece and a right rear piece on the side away from the middle section of the plate; in the unfolded state of the vehicle, the left front piece and the right front piece overlap and are connected by a detachable connection structure to cover the front space of the vehicle, and the left rear piece and the right rear piece overlap and are connected by a detachable connection structure to cover the rear space of the vehicle.

[0016] Preferably, the middle section of the plate has two interlocking locking structures on both sides in the transverse direction. The locking structures are used to lock in the folded state of the vehicle to maintain the box-shaped state of the vehicle after folding.

[0017] Preferably, the plate has reinforcing ribs on both sides of the transverse direction of the middle section, and at least one reinforcing rib has a handle; at least one of the front, middle and rear sections of the plate is also provided with a support member, which is located at the bottom of the vehicle and exposed on the outside of the vehicle when the vehicle is unfolded, and the support member is constructed as a pad, a roller or a combination of both.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention features pre-set creases on the front, middle, and rear sections of the sheet material. By converging the inner and outer diagonal creases of the front section to reduce its volume, and converging the inner and outer diagonal creases of the rear section to reduce its volume, the folded front and rear sections are then overlapped towards the middle section. Simultaneously, the middle section is folded along the central longitudinal crease and the top longitudinal crease, thus enclosing the front and rear sections within the box-shaped storage space formed by the folded middle section. This multi-directional crease layering constraint and spatial overlapping design significantly reduces the axial and radial space occupied by the vehicle in its folded state, substantially reducing its storage volume and improving portability. The pre-set creases on the sheet material guide the user through folding and unfolding. The folding and unfolding process requires no additional tools; it can be completed simply by pushing along the creases with one or both hands, simplifying the operation, lowering the barrier to entry, and effectively improving the user experience. Attached Figure Description

[0020] The disclosure of this utility model will become more readily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, similar numbers in the drawings are used to denote similar components, wherein:

[0021] Figure 1 This is a structural diagram of a single sheet of material unfolded into a planar state.

[0022] Figure 2 This is a structural diagram of a watercraft in its deployed state.

[0023] Figure 3 This is a structural diagram of a watercraft in its stowed state.

[0024] Figure 4 This is a structural diagram of a watercraft in its stowed-up state.

[0025] In the picture:

[0026] 100 Front section, 101 Front section longitudinal crease, 102 Front section inner diagonal crease, 103 Front section outer diagonal crease, 104 Front section pre-folded area, 105 Front panel hem, 106 Front panel hem crease, 107 Left front panel, 108 Right front panel,

[0027] 200 Middle section, 201 Center longitudinal crease, 202 Top longitudinal crease, 203 Bottom longitudinal crease, 204 Side plate, 209 Reinforcing rib, 210 Handle, 211 Limiting component, 212 Locking structure, 213 Support component, 214 Through hole.

[0028] 300 Back section, 301 Back section longitudinal crease, 302 Back section inner diagonal crease, 303 Back section outer diagonal crease, 304 Back section pre-folded area, 305 Back panel hem, 306 Back panel hem crease, 307 Left back panel, 308 Right back panel.

[0029] 400 Flooring, 401 Flooring creases, 402 Back panel, 403 Seat, 404 Chair back

[0030] 500 horizontal creases

[0031] 600 box-shaped storage space

[0032] 800 foot pedals. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the workpiece of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0040] This utility model provides a portable watercraft that achieves high efficiency and convenience in storage and deployment through structural optimization, effectively improving the user experience. Furthermore, the vehicle's volume is significantly reduced when stored, making it convenient for daily carrying and storage.

[0041] This utility model discloses a portable watercraft comprising a single-piece panel and a floor 400. The single-piece panel constitutes the main structure of the watercraft. Multiple creases are pre-set on the panel, allowing it to be folded along these creases to switch between a stowed and unfolded state, thus enabling the vehicle to be stowed and unfolded. The floor 400 can be attached to the center of the unfolded panel to strengthen the vehicle's cabin. The floor 400 can also be a foldable structure. To ensure the strength of the cabin and provide better support, when the floor 400 is installed in the center of the panel, the creases on the floor 400 should not be parallel to the longitudinal creases of the panel.

[0042] To clearly demonstrate the structure of a single-piece panel, Figure 1 A schematic diagram of the structure when a single sheet of material is unfolded into a planar state is shown. Please refer to [link / reference]. Figure 1The board is divided into a front section 100, a middle section 200, and a rear section 300 along its length. Transverse creases 500 are provided between the front section 100 and the middle section 200, and between the middle section 200 and the rear section 300. The middle section 200 has a central longitudinal crease 201 and a top longitudinal crease 202 symmetrically arranged along its length. The front section 100 has a front longitudinal crease 101, a front inner oblique crease 102, and a front outer oblique crease 103 symmetrically arranged along its length. Segment 300 is symmetrically provided with a rear longitudinal crease 301, a rear inner oblique crease 302, and a rear outer oblique crease 303 along its length direction; wherein, the central longitudinal crease 201 is connected to the front longitudinal crease 101 and the rear longitudinal crease 301 respectively, the front inner oblique crease 102 intersects with the front outer oblique crease 103 and merges with the central longitudinal crease 201, and the rear inner oblique crease 302 intersects with the rear outer oblique crease 303 and merges with the central longitudinal crease 201. In the stowed state, the front inner oblique fold 102, the front outer oblique fold 103, the rear inner oblique fold 302, and the rear outer oblique fold 303 are close together with their respective symmetrical folds on the other side. The front section 100 and the rear section 300 of the plate are folded towards the middle section 200 along the transverse fold 500, and finally stacked and stored in the box-shaped storage space 600 formed by folding the middle section 200 through the central longitudinal fold 201 and the top longitudinal fold 202. In the unfolded state, the front inner oblique fold 102, the front outer oblique fold 103, the rear inner oblique fold 302, and the rear outer oblique fold 303 are unfolded away from their respective symmetrical folds on the other side.

[0043] In one possible implementation, the front section 100 of the board has a front pre-folding area, and the rear section 300 of the board has a rear pre-folding area. Both the front and rear pre-folding areas have multiple creases. Folding the front pre-folding area along these creases forms a front closed structure at the end of the front section 100, and folding the rear pre-folding area along these creases forms a rear closed structure at the end of the rear section 300. The front closed structure is approximately triangular, and the rear closed structure is approximately dovetail-shaped. Figure 2 As shown. The front and rear closed structures can be folded by the user during use. To further increase ease of use, they can also be pre-folded so that the user does not need to manually fold them to form the closed sections at both ends of the vehicle.

[0044] Please continue reading Figure 1The front section inward oblique crease 102 converges from the end of the front section 100 of the board towards the middle section 200, while the front section outward oblique crease 103 radiates from the end of the front section 100 towards the outer side of the middle section 200. Similarly, the rear section inward oblique crease 302 converges from the end of the rear section 300 towards the middle section 200, while the rear section outward oblique crease 303 radiates from the end of the rear section 300 towards the outer side of the middle section 200. The end of the front section 100 can be a closed front section structure, and the end of the rear section 300 can be a closed rear section structure.

[0045] The sheet material is made of a waterproof material suitable for floating in water. Reinforcing structures can be incorporated on the surface or inside the sheet to increase its strength while reducing its weight and increasing buoyancy. For example, the sheet can be made of polypropylene and / or polyethylene, the surface can be corrugated and / or honeycomb-like, and the interior can have hollow sections.

[0046] The floor 400 is detachably connected to the single-piece panel. In use, the floor 400 is installed in the cabin formed by the middle section 200 of the panel and has a reinforcing structure staggered with the central longitudinal fold 201. In the detached state, the floor 400 can be attached to the inside of a box formed by folding the panel, or to the outside of a box formed by folding the panel.

[0047] In one possible implementation, the floor 400 is configured as a foldable structure. When folded, the floor 400 becomes smaller and can be directly encased within the box formed by folding the panels. See also Figure 2 The floor 400 has at least one floor crease 401 arranged parallel to the transverse crease 500 on the board. The floor 400 can be folded along the floor crease 401. When the floor 400 is unfolded and placed in the vehicle cabin, the floor crease 401 intersects with the central longitudinal crease 201 of the middle section 200 of the board. This structural design can compensate for the defect caused by the central longitudinal crease 201 that makes the cabin prone to denting and deformation under load. The floor 400 can distribute the force on the cabin and increase the stability of the cabin. The floor 400 can be made of a material that can support the weight of one or more passengers, preferably a high-strength and lightweight material. In some examples, the floor 400 can be made of a thermoplastic polymer reinforced board, such as corrugated polypropylene. The thickness of the floor 400 ranges from 5mm to 18mm.

[0048] The middle section 200 of the plate has symmetrical bottom longitudinal folds 203 along its length. The bottom longitudinal folds 203 are located between the central longitudinal fold 201 and the top longitudinal fold 202, and are approximately parallel to the central longitudinal fold 201 and the top longitudinal fold 202. In the deployed state, the plate area between the two bottom longitudinal folds 203 forms the floor of the cabin. The floor 400 is laid on the cabin floor, and the two central longitudinal folds 201 are located in the middle of the cabin floor. The floor folds 401 are perpendicular to the central longitudinal folds 201. Furthermore, each side of the middle section 200 in the lateral direction is connected to a side panel 204, which extends from the edge of the middle section 200 to near the longitudinal fold 203 on the bottom surface. When the floor 400 is installed on the middle section 200, the two side panels 204 abut against the two edges of the floor 400, thereby limiting the lateral movement of the floor 400. At the same time, the cooperation between the two side panels 204 and the floor 400 enhances the strength of the cabin. In the folded state, the vehicle is roughly box-shaped. The area between the two central longitudinal folds 201 of the middle section 200 forms the bottom surface of the box, and the areas between the two edges of the middle section 200 and the corresponding longitudinal folds 202 on the top surface are close to each other to form the top surface of the box. The longitudinal fold 203 on the bottom surface is located on the side of the box. This folding design can significantly reduce the thickness of the vehicle after folding.

[0049] In the unfolded state, the front section 100 of the sheet metal forms the front of the vehicle, the rear section 300 forms the rear of the vehicle, and the middle section 200 forms the cabin of the vehicle. Further, a left front panel 107 and a right front panel 108 are provided on the side of the front section 100 away from the middle section 200, and a left rear panel 307 and a right rear panel 308 are provided on the side of the rear section 300 away from the middle section 200. In the unfolded state, the left front panel 107 and the right front panel 108 overlap and are sealed together by a detachable connection structure to cover the front space of the vehicle; the left rear panel 307 and the right rear panel 308 overlap and are sealed together by a detachable connection structure to cover the rear space of the vehicle. The detachable connection structure can be two straps connected by one or more of the following methods: elastic buckles, locks, hooks, and loops.

[0050] To ensure the front panel effectively covers the front of the vehicle and improve its waterproof performance, a front panel skirt can be provided on the outer edge of at least one of the left front panel 107 and the right front panel 108 to cover the gap formed by the overlap of the left front panel 107 and the right front panel 108.

[0051] The front skirt can be made of a soft material or a harder, waterproof material. In one possible implementation, the front skirt is made of the same material as the sheet material, and only the right front piece 108 has a front skirt 105, such as... Figure 1As shown, a front skirt crease 106 is provided between the front skirt 105 and the right front piece 108. The front skirt 105 can be folded towards the right front piece 108 along the front skirt crease 106. When the left front piece 107 overlaps with the right front piece 108, the front skirt 105 covers the left front piece 107. In another possible implementation, the front skirt is made of a soft, deformable, and waterproof material. The outer edges of the left front piece 107 and the right front piece 108 can each have a front skirt. After the left front piece 107 overlaps with the right front piece 108, the front skirt of the left front piece 107 is attached to the right front piece 108, and the front skirt of the right front piece 108 is attached to the left front piece 107 to cover the gap formed by the overlap of the two front pieces. Furthermore, because the front skirt is flexible and deformable, it will not adversely affect the folding of the front section of the board. In addition, to ensure that the front skirt is firmly attached to the corresponding front piece, a reusable connection structure can be provided between the front skirt and the corresponding front piece. The connection structure can be, for example, Velcro, adhesive layer, etc.

[0052] Correspondingly, in order to ensure the sealing effect of the rear panel on the rear of the vehicle and improve the waterproof performance of the rear of the vehicle, a rear panel skirt can be provided on the outer edge of at least one of the left rear panel 307 and the right rear panel 308 to cover the gap formed by the overlap of the left rear panel 307 and the right rear panel 308.

[0053] The back skirt can be made of a soft material or a harder, waterproof material. In one possible implementation, the back skirt material is the same as the sheet material, and only the left back piece 307 has a back skirt 305, such as... Figure 1 As shown, a back hem crease 306 is provided between the back hem 305 and the left back piece 307. The back hem 305 can be folded along the back hem crease 306 towards the left back piece 307. When the left back piece 307 overlaps with the right back piece 308, the back hem 305 covers the right back piece 308. In another possible implementation, the back hem is made of a soft, deformable, waterproof material. The outer edges of the left back piece 307 and the right back piece 308 can each have a back hem. After the left back piece 307 overlaps with the right back piece 308, the back hem of the left back piece 307 is attached to the right back piece 308, and the back hem of the right back piece 308 is attached to the left back piece 307, thus concealing the gap formed by the overlap of the two back pieces. The back hem and the corresponding back piece are provided with a reusable connecting structure, such as Velcro or an adhesive layer.

[0054] In one possible implementation, the vehicle further includes a back panel 402 and a seat; the back panel 402 is hinged to the floor 400 and can be folded towards the floor 400; the seat includes a seat surface 403 on the floor 400 and a backrest 404 on the back panel 402, the backrest 404 being foldable together with the back panel 402. When the floor 400 is installed on the middle section 200 of the board, the back panel 402 forms an angle of not less than 90° with the floor 400, the two sides of the floor 400 are confined in the gap formed by the longitudinal crease 203 on the bottom surface and the end face of the side panel 204, the back panel 402 is confined between the limiting member 211 and the side panel 204, and the two sides of the backrest 404 are respectively connected to the corresponding positions on the transverse sides of the middle section 200 of the board. The limiting member 211 can be a detachable connection structure connecting the transverse sides of the middle section 200 of the board. This design, by limiting the back panel 402, connects the two sides of the seat back 404 to the two sides of the panel, improving the stability of the seat and dispersing the force applied to the seat back 404 when the passenger leans against it. Furthermore, the acute angle formed between the side panel 204 near the rear section 300 of the panel and the longitudinal crease 203 on the bottom surface allows the back panel 402 to form an obtuse angle with the floor 400 when installed in the cabin, providing comfortable back support for the passenger.

[0055] Optionally, the limiting member 211 may include two straps, the fixed ends of which are respectively fixed to both sides of the middle section 200 of the board, and the movable ends of the two straps are connected by one or more of the following methods: elastic buckle, lock, hook, and hanging ring. The left and right sides of the chair back 404 are also connected to the middle section 200 of the board through a similar detachable connection structure. Taking the connection on one side as an example: one strap is fixed to one side of the chair back 404, and the other strap is fixed to the middle section 200 of the board near the front section 100. Then, the two straps are connected by one or more of the following methods: elastic buckle, lock, hook, and hanging ring. If the straps fixed to both sides of the middle section 200 of the board are blocked by the side panel 204, through holes 214 can be opened at the corresponding positions on the side panel 204, and the straps can be passed through the through holes 214 and connected to the corresponding other strap.

[0056] In one possible implementation, the height of the backrest 404 relative to the seat 403 is adjustable. Specifically, a support plate is fixed to the rear side of the seat 403, and the backrest 404 is mounted on the support plate and can be adjusted up and down relative to the support plate. Optionally, the support plate has a slot, and one end of the backrest 404 is fixedly connected to an adjusting rod. The other end of the adjusting rod passes through the slot and is threadedly connected to an adjusting knob. By tightening the knob, the backrest 404 can be tightly fitted to the support plate, thereby fixing the backrest 404 to a certain position on the support plate. By rotating the knob in the opposite direction, the gap between the backrest 404 and the support plate can be increased, further allowing the backrest 404 to be moved along the support plate to the desired position.

[0057] In one possible implementation, the vehicle also includes a foot pedal 800. In the deployed state, the foot pedal 800 is mounted at the front of the vehicle and connected to the front end. Both ends of the foot pedal 800 are connected to corresponding positions on either side of the middle section 200 of the plate. Specifically, the two ends of the foot pedal 800 are connected to the plate via a detachable connection structure, which can be two straps connected by one or more of the following methods: elastic buckles, locks, hooks, or hanging rings. The foot pedal 800 can be connected to the front end of the vehicle via a support rod to provide support in the opposite direction to the rider's pedaling force.

[0058] Please see Figure 3 In one possible implementation, the two sides of the middle section 200 of the sheet metal are provided with interlocking locking structures 212 in the lateral direction. The locking structures 212 are used to lock the two side panels 204 in the folded state of the vehicle to maintain the box-shaped state after folding. The locking structure 212 can be one or more locking components; each locking component includes two straps that can be connected by one or more of the following methods: elastic buckle, lock, hook, and hanging ring. The two straps are respectively fixed to the two side walls of the middle section 200 of the sheet metal, so as to pull the two side walls of the middle section 200 of the sheet metal closer together after the middle section 200 of the sheet metal is folded.

[0059] Please see Figure 3 In one possible implementation, reinforcing ribs 209 are provided at both edges in the lateral direction of the middle section 200 of the plate, and at least one reinforcing rib 209 is provided with a handle 210. At least one of the front section 100, middle section 200, and rear section 300 of the plate is also provided with a support member 213. The support member 213 is located at the bottom of the vehicle and exposed on the outside of the vehicle when the vehicle is deployed. The support member 213 is constructed as a pad, a roller, or a combination of both. The support member 213 helps prevent the plate portion of the vehicle from directly contacting the ground or other materials on the ground when the user moves the vehicle on land, thus protecting the vehicle. Please see [link to relevant documentation]. Figure 4 In one example, a support member 213 is provided in the area between the two central longitudinal folds 201 of the middle section 200 of the sheet metal. The support member 213 is always exposed on the outside of the vehicle in both the stowed and unfolded states. This design reduces or prevents scratches on the bottom surface of the vehicle during user movement when the vehicle is stowed. Please see [link to relevant documentation]. Figure 2 A support member 213 can also be provided on the bottom surface of the front section 100 of the plate, which is exposed on the outside of the vehicle when the vehicle is deployed.

[0060] This invention features pre-set creases on the front section 100, middle section 200, and rear section 300 of a sheet metal. By converging the inner and outer oblique creases of the front section 100 to reduce its volume, and converging the inner and outer oblique creases of the rear section 300 to reduce its volume, the folded front section 100 and rear section 300 are then overlapped towards the middle section 200. Simultaneously, the middle section 200 is folded along the central longitudinal crease 201 and the top longitudinal crease 202, thus enclosing the front section 100 and rear section 300 within the box-shaped storage space 600 formed by the folding of the middle section 200. This multi-directional crease layering constraint and spatial overlapping design significantly reduces the axial and radial space occupied by the vehicle in its stowed state, substantially reducing the vehicle's storage volume and improving portability. The pre-set creases on the board guide users to fold and unfold the board. The folding and unfolding process does not require any additional tools. It can be completed by pushing along the creases with one or both hands, which simplifies the operation steps, lowers the threshold for use, and effectively improves the user experience.

[0061] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A portable watercraft, characterized in that, It includes a single sheet of material, which has multiple creases pre-set, and the storage state and unfolded state can be switched by folding along the creases; The board material is divided into a front section, a middle section, and a rear section along its length. Horizontal creases are provided between the front and middle sections, and between the middle and rear sections. The middle section has a central longitudinal crease and a top longitudinal crease symmetrically arranged along its length. The front section has a front longitudinal crease, a front inner oblique crease, and a front outer oblique crease symmetrically arranged along its length. The rear section has a rear longitudinal crease, a rear inner oblique crease, and a rear outer oblique crease symmetrically arranged along its length. The central longitudinal crease connects to both the front and rear longitudinal creases; the front inner oblique crease intersects with the front outer oblique crease and merges with the central longitudinal crease; the rear inner oblique crease intersects with the rear outer oblique crease and merges with the central longitudinal crease. When the vehicle is stowed, the front inner oblique crease, the front outer oblique crease, the rear inner oblique crease, the rear outer oblique crease, and their respective symmetrical creases on the other side approach and converge with each other. The front and rear sections of the sheet metal are folded towards the middle section along the transverse creases, and finally stacked and stored in the box-shaped storage space formed by the folding of the middle section through the central longitudinal crease and the top longitudinal crease. When the vehicle is unfolded, the front inner oblique crease, the front outer oblique crease, the rear inner oblique crease, the rear outer oblique crease, and their respective symmetrical creases on the other side move away from each other.

2. The portable watercraft according to claim 1, characterized in that, The front section inner diagonal crease converges from the end of the front section of the board towards the middle section, and the front section outer diagonal crease diverges from the end of the front section of the board towards the middle section; the rear section inner diagonal crease converges from the end of the rear section of the board towards the middle section, and the rear section outer diagonal crease diverges from the end of the rear section of the board towards the middle section.

3. The portable watercraft according to claim 1, characterized in that, It also includes a floor that is detachably connected to a single-piece panel, the floor having a reinforcing structure that is staggered with the central longitudinal fold; the floor can be attached to the inside or outside of a box formed by folding the panel in the detached state, and the floor is installed in the middle section of the panel in the use state.

4. The portable watercraft according to claim 3, characterized in that, The floor has at least one floor crease parallel to the transverse crease, and the floor can be folded along the floor crease.

5. The portable watercraft according to claim 3 or 4, characterized in that, The middle section is symmetrically provided with bottom longitudinal creases along its length. The bottom longitudinal creases are located between the center longitudinal crease and the top longitudinal crease, and are approximately parallel to the center longitudinal crease and the top longitudinal crease. Each side panel is connected to one side panel on both sides of the middle section of the board in the transverse direction. The side panels extend from the edge of the middle section of the board to the longitudinal fold near the bottom surface. When the floor is installed in the middle section of the board, the two side panels abut against the two sides of the floor respectively.

6. The portable watercraft according to claim 5, characterized in that, It also includes a back panel and a seat, the back panel being hinged to the floor and foldable toward the floor, and the seat including a seat surface disposed on the floor and a backrest disposed on the back panel; When the floor is installed in the middle section of the board, the back panel forms an angle of not less than 90° with the floor. The two sides of the floor are restricted in the gap formed by the longitudinal fold of the side and the end face of the side panel. The back panel is restricted between the limiting member and the side panel. The limiting member is constructed as a detachable connection structure connecting the two sides in the transverse direction of the middle section of the board. The two sides of the chair back are respectively connected to the corresponding positions of the two sides in the transverse direction of the middle section of the board.

7. The portable watercraft according to claim 6, characterized in that, It also includes a foot pedal. When the vehicle is unfolded, the foot pedal is installed at the front of the vehicle and connected to the front end of the vehicle. The two ends of the foot pedal are respectively connected to the two sides of the middle section of the plate in the transverse direction.

8. The portable watercraft according to claim 1, characterized in that, The front section of the board is provided with a left front piece and a right front piece on the side away from the middle section of the board, and the rear section of the board is provided with a left rear piece and a right rear piece on the side away from the middle section of the board. When the vehicle is deployed, the left front panel and the right front panel overlap and are connected by a detachable connection structure to cover the front space of the vehicle, and the left rear panel and the right rear panel overlap and are connected by a detachable connection structure to cover the rear space of the vehicle.

9. The portable watercraft according to claim 1, characterized in that, The plate has two interlocking locking structures on both sides in the transverse direction of the middle section. The locking structures are used to lock the plate in the storage state to maintain the box-shaped state of the folded plate.

10. The portable watercraft according to claim 1, characterized in that, The plate has reinforcing ribs on both sides of the transverse direction of the middle section, and at least one reinforcing rib has a handle; at least one of the front, middle and rear sections of the plate is also provided with a support member, which is located at the bottom of the vehicle and exposed to the outside of the vehicle when the vehicle is unfolded, and the support member is constructed as a pad, a roller or a combination of both.

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