Hollowed-out weight-reducing surfboard

Abstract

The application discloses a kind of hollow weight-reducing surfboards, it is related to surfboard technical field, including slab one, the connecting block is fixedly installed on slab one, the connecting block is slidably embedded with slab two, the connecting block is slidably embedded with slab three, tail fin plate is fixedly installed on slab three, slab two and the outer wall of slab one contact, the outer wall of slab one and slab three contact, the hollow weight-reducing surfboard further includes multiple segment assembly mechanism being installed on slab two and sliding mechanism being installed on slab one;When surfing is needed, slab two and slab three are aligned with connecting block, at this time, clamping shell one and clamping shell two are reset into connecting block by spring, so as to quickly disassemble surfboard, the volume is greatly reduced after disassembly, suitable for car trunk, backpack or air shipment, at the same time, also reduce maintenance cost, prolong service life.

Description

Technical Field

[0001] This invention relates to the field of surfboard technology, specifically to a hollowed-out weight-reducing surfboard. Background Technology

[0002] Traditional heavy surfboards are difficult to carry and transport, making them unsuitable for travel, rocky areas, and other similar scenarios. To ensure impact and bending resistance, more material is needed, resulting in a bulky board. Simply reducing weight can easily lead to board breakage and deformation.

[0003] Patent publication number CN209833937U relates to a surfboard body, a water divider, and a sail. The water divider is attached to the bottom surface of the surfboard body, and the sail is mounted on the upper surface of the surfboard body via a base. The surfboard body is made of space fabric and side strips glued together, and an air inlet / outlet valve is provided on the surfboard body. Compared with existing surfboards, this sail surfboard has the following advantages: the main structure of the sailboard is an inflatable surfboard, made of space fabric, and sealed with special glue, resulting in a simple structure and light weight; the sailboard is an inflatable structure, easy and convenient to unfold, and can be folded and packed after deflation, occupying very little storage space; the sail surfboard has the dual functions of a regular surfboard and a sailboat, becoming a sailboard when the sail is installed and a regular surfboard when the sail is removed.

[0004] This device controls the surfboard through a space cloth. Although it is made of a space cloth and special glue that are sealed together, the structure is simple and lightweight, and it has the dual functions of a regular surfboard and a sailboat. However, when the device is disassembled and assembled in multiple sections, it is easy to cause splicing difficulties, making it difficult to ensure the overall efficiency of the installation and further wasting time. At the same time, the movement speed of the device is limited by the board surface, which greatly reduces the range and reduces the operability of the surfboard. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a hollowed-out weight-reducing surfboard, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hollow weight-reducing surfboard, comprising a first plate, a connecting block fixedly mounted on the first plate, a second plate slidably embedded on the connecting block, a third plate slidably embedded on the connecting block, a tail fin fixedly mounted on the third plate, a slot formed in the second plate, a slot formed in the third plate, the second plate contacting the outer wall of the first plate, the first plate contacting the outer wall of the third plate, a hollow groove formed in the outer wall of the first plate, and the hollow weight-reducing surfboard further comprising a multi-segment assembly mechanism mounted on the second plate and a sliding mechanism mounted on the first plate; The multi-segment assembly mechanism includes a sliding plate 1 installed inside the second plate, a snap-fit ​​shell 1 installed on the sliding plate 1, a roller 1 installed inside the snap-fit ​​shell 1, a sliding plate 2 installed inside the third plate, a snap-fit ​​shell 2 installed on the sliding plate 2, and a roller 2 installed inside the snap-fit ​​shell 2. A spring is fitted onto the outer wall of the sliding plate 1. The outer wall of the snap-fit ​​shell 1 contacts the inside of the snap-fit ​​groove in the second plate. The circumferential surface of the roller 1 contacts the inside of the snap-fit ​​groove in the second plate. The snap-fit ​​shell 1 contacts the inside of the connecting block. The circumferential surface of the roller 1 contacts the inside of the connecting block. A spring is fitted onto the outer wall of the sliding plate 2. The outer wall of the snap-fit ​​shell 2 contacts the inside of the snap-fit ​​groove in the third plate. The circumferential surface of the roller 2 contacts the inside of the snap-fit ​​groove in the third plate. The snap-fit ​​shell 2 contacts the inside of the connecting block. The circumferential surface of the roller 2 contacts the inside of the connecting block.

[0007] When surfing is needed, align board two and board three with the connecting block. At this time, snap-fit ​​shell one and snap-fit ​​shell two are reset by springs and enter the connecting block, thus allowing the surfboard to be quickly disassembled. After disassembly, the size is greatly reduced, making it suitable for car trunks, backpacks, or air transport. This solves the pain points of longboards being difficult to carry and store. Damaged parts can be replaced individually without scrapping the entire board, reducing maintenance costs and extending service life.

[0008] The sliding mechanism includes a sliding block mounted on the first plate, a step plate mounted on the sliding block, a connecting rod mounted on the step plate, and a movable plate mounted on the connecting rod.

[0009] A spring is provided between the sliding block and the first plate. The outer wall of the step plate is in contact with the first plate. An inclined surface is provided on the front side of the step plate. The connecting rod is in contact with the interior of the first plate. The moving plate is slidably embedded in the interior of the first plate. A hollow groove is provided inside the moving plate. An inclined surface is provided on the outer wall of the moving plate.

[0010] When surfing, to reduce the weight of the surfboard, surfers move by stepping on the footboard. The footboard moves the connecting rod, which in turn moves the moving board. This causes the moving board to align with the internal slots of the first board, making the surfboard hollow. This allows for precise matching of the buoyancy needs of users of different weights and heights, resulting in a smoother ride and longer range.

[0011] The hollowed-out weight-reducing surfboard also includes an anti-clogging mechanism installed on the third plate, used to clean impurities at the propulsion port; The anti-clogging mechanism includes a propulsion device installed on the third plate, a rotating shaft installed at the output end of the propulsion device, a fan installed on the rotating shaft, a partition installed inside the propulsion device, a rotating rod installed on the circumferential surface of the rotating shaft, and a fixing ring installed on the rotating rod. The rotating shaft is in contact with the inside of the partition, the rotating rod is in contact with the outer wall of the partition, and the inside of the fixing ring is in contact with the propulsion device.

[0012] When surfing, the propulsion device is activated, which drives the shaft to rotate, which in turn drives the fan to rotate. At the same time, the rotation of the shaft drives the rotating rod to clean off any attached seaweed, preventing it from getting tangled and stuck, damaging the guide vanes, and causing the device to stall midway and affect the experience. In addition, the partition does not affect the continuity of use, and damaged parts can be replaced individually without the need for maintenance of the entire propulsion unit.

[0013] The anti-clogging mechanism also includes a C-shaped plate installed inside the first plate, an extension plate installed on the C-shaped plate, and a trapezoidal block installed on the extension plate.

[0014] A spring is provided between the C-shaped plate and the first plate. The outer wall of the trapezoidal block has an inclined surface. The inclined surface of the trapezoidal block contacts the inclined surface of the moving plate. The outer wall of the extension plate contacts the interior of the first plate.

[0015] During buffering, the moving plate moves the trapezoidal block to both sides, and the trapezoidal block moves the extension plate, making the buffering more stable and preventing the plate from swaying and sinking due to the impact of the surge. This reduces the thrust attenuation caused by water resistance turbulence and avoids increasing unnecessary resistance, affecting top speed and turning explosive force.

[0016] The hollowed-out weight-reducing surfboard also includes an anti-fall mechanism installed on the first plate, which is used to adjust the buffer board surface when surfing; The anti-fall-off mechanism includes a round rod installed inside the plate and a limiting plate installed on the round rod. The limiting plate is in contact with the outer wall of the moving plate, and a spring is sleeved on the circumferential surface of the round rod.

[0017] When the perforated groove is opened, the step plate is self-locked by the limiting plate, which will not rebound due to water pressure, and will continue to provide stability. This will prevent failure midway, which may cause bumps or tipping. The state can be adjusted instantly, and there is no need to worry about incomplete locking. It also prevents loosening from causing turbulence and slowing down the speed.

[0018] The anti-fall mechanism also includes a control buffer mechanism installed inside the first plate. The control buffer mechanism includes a left control buffer mechanism and at least one right control buffer mechanism that is spaced apart from the left control buffer mechanism, for preventing the surfboard from decelerating and losing control. The left and right control buffer mechanisms each include a sliding rod installed inside the first plate, a hinge block installed inside the sliding rod, a telescopic pedal installed on the hinge block, a sliding block installed inside the sliding rod, and an adjustment plate installed inside the first plate.

[0019] When surfing, if cushioning adjustments are needed, surfers can move by stepping on the telescopic pedals. The telescopic pedals move the articulated blocks, which in turn move the glide bar, which in turn moves the glide blocks. The glide blocks then rotate the adjustment plate to increase the board's buoyancy and resistance, weaken the impact of the wave surge, prevent the board nose from getting wet and the body from being flipped over by the wave, ensure the efficiency of starting and chasing waves, reduce the impact of water flow in the cushioned state, and reduce the probability of debris getting caught and motor overload.

[0020] A spring is provided between the sliding rod and the first plate. The fixed end of the telescopic pedal is hinged to the first plate by a torsion spring. A sliding groove is provided inside the adjusting plate. The sliding block is slidably embedded in the sliding groove inside the adjusting plate.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, when surfing is needed, the second and third boards are aligned with the connecting block. At this time, the first and second snap-fit ​​shells are reset by springs and enter the connecting block, thus allowing for quick disassembly of the surfboard. After disassembly, the size is greatly reduced, making it suitable for car trunks, backpacks, or air transport, solving the pain points of long boards being difficult to carry and store. Damaged parts can be replaced individually without scrapping the entire board, reducing maintenance costs and extending service life. When surfing, in order to reduce the weight of the surfboard, the surfer will move by stepping on the footboard. The footboard moves the connecting rod, which in turn moves the moving board, causing the moving board to align its internal hollow groove with the internal hollow groove of the first board, so that the surfboard is in a hollow state. This can accurately match the buoyancy needs of users of different weights and heights, making the ride smoother and the ride longer.

[0022] 2. In this invention, during surfing, the propulsion device is activated, which drives the rotating shaft to rotate, which in turn drives the fan to rotate. Simultaneously, the rotation of the shaft drives the rotating rod to rotate, clearing away any attached seaweed and preventing it from getting tangled and stuck, damaging the guide vanes, and causing mid-flight speed loss that could affect the experience. Furthermore, the partitions ensure uninterrupted use, allowing for individual replacement of damaged sections without requiring maintenance of the entire propulsion unit. During cushioning, the moving plate moves the trapezoidal block to both sides, which in turn moves the extension plate, making the cushioning more stable and preventing the board from swaying or sinking due to wave impact. This reduces thrust loss caused by water resistance turbulence and avoids unnecessary drag that could affect top speed and turning power.

[0023] 3. In this invention, when the perforated groove is opened, the stepboard is self-locked by the limiting plate, preventing rebound due to water pressure and providing continuous stability. This avoids mid-course failure that could cause bumps or tipping over, allowing for instantaneous adjustment without worrying about incomplete locking or loosening that could cause turbulence and slow down the speed. When surfing, if cushioning adjustments are needed, surfers can move by stepping on the telescopic pedal. The telescopic pedal moves the hinge block, which in turn moves the sliding bar, which in turn moves the sliding block. The sliding block then rotates the adjustment plate to increase the board's buoyancy and resistance, reducing wave impact and preventing the board nose from getting wet or the body from being flipped over by the waves. This ensures efficient wave generation and chasing, reduces water impact in the cushioned state, and decreases the probability of debris getting caught and motor overload. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the positional structure of the connecting block and the snap-fit ​​shell of the present invention; Figure 3 This is a schematic diagram showing the positional structure of the stepping plate and the moving plate of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of the structural position at point A in the middle; Figure 5 This is a schematic diagram showing the position and structure of the propulsion device and the rotating rod of the present invention; Figure 6 This is a schematic diagram showing the positional structure of the trapezoidal block and the extension plate of the present invention; Figure 7 This is a schematic diagram showing the position and structure of the sliding rod and adjusting plate of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of the structural position at point B in the middle.

[0025] The meanings of the labels in the diagram are as follows: 1. Plate 1; 2. Connecting block; 3. Plate 2; 4. Plate 3; 5. Tail fin plate; 6. Sliding plate 1; 7. Snap-fit ​​shell 1; 8. Roller 1; 9. Sliding plate 2; 10. Snap-fit ​​shell 2; 11. Roller 2; 12. Step plate; 13. Sliding block; 14. Connecting rod; 15. Moving plate; 16. Anti-blocking mechanism; 161. Propulsion device; 162. Rotating shaft; 163. Fan; 164. Partition plate; 165. Rotating rod; 166. Fixing ring; 167. Trapezoidal block; 168. Extension plate; 169. C-shaped plate; 17. Anti-falling mechanism; 171. Round rod; 172. Limiting plate; 173. Sliding rod; 174. Telescopic pedal; 175. Hinge block; 176. Sliding block; 177. Adjusting plate. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1: Please see Figures 1-4 One embodiment of the present invention is: a hollow weight-reducing surfboard, including a first plate 1, a connecting block 2 fixedly installed on the first plate 1, a second plate 3 slidably embedded on the connecting block 2, a third plate 4 slidably embedded on the connecting block 2, a tail fin plate 5 fixedly installed on the third plate 4, a slot is opened in the second plate 3, a slot is opened in the third plate 4, the second plate 3 is in contact with the outer wall of the first plate 1, the first plate 1 is in contact with the outer wall of the third plate 4, a hollow groove is opened in the outer wall of the first plate 1, the hollow weight-reducing surfboard also includes a multi-segment assembly mechanism installed on the second plate 3 and a sliding mechanism installed on the first plate 1; The multi-segment assembly mechanism includes a sliding plate 6 installed inside plate 2 3, a snap-fit ​​shell 7 installed on the sliding plate 1 6, a roller 8 installed inside the snap-fit ​​shell 7, a sliding plate 9 installed inside plate 3 4, a snap-fit ​​shell 10 installed on the sliding plate 2 9, and a roller 11 installed inside the snap-fit ​​shell 10. The outer wall of the sliding plate 1 6 is fitted with a spring. The outer wall of the snap-fit ​​shell 7 contacts the inside of the snap-fit ​​groove of plate 2 3. The circumferential surface of the roller 8 contacts the inside of the snap-fit ​​groove of plate 2 3. The snap-fit ​​shell 7 contacts the inside of the connecting block 2. The circumferential surface of the roller 8 contacts the inside of the connecting block 2. The outer wall of the sliding plate 2 9 is fitted with a spring. The outer wall of the snap-fit ​​shell 10 contacts the inside of the snap-fit ​​groove of plate 3 4. The circumferential surface of the roller 11 contacts the inside of the snap-fit ​​groove of plate 3 4. The snap-fit ​​shell 10 contacts the inside of the connecting block 2. The circumferential surface of the roller 11 contacts the inside of the connecting block 2.

[0028] The sliding mechanism includes a sliding block 13 mounted on plate 1, a step plate 12 mounted on the sliding block 13, a connecting rod 14 mounted on the step plate 12, and a moving plate 15 mounted on the connecting rod 14.

[0029] A spring is provided between the sliding block 13 and the plate 1. The outer wall of the step plate 12 contacts the plate 1. An inclined surface is provided on the front side of the step plate 12. The connecting rod 14 contacts the interior of the plate 1. The moving plate 15 is slidably embedded in the interior of the plate 1. A hollow groove is provided inside the moving plate 15. An inclined surface is provided on the outer wall of the moving plate 15.

[0030] In addition, the movement of roller 8 and roller 11 will compress the spring, and the movement of sliding block 13 will compress the spring between plate 1 and plate 1.

[0031] In this embodiment, when surfing is needed, the surfboard can be disassembled into three equal parts. Disassembly involves pulling sliding plate 6 and sliding plate 9 to move them. Sliding plates 6 and 9 move locking housings 7 and 10, which in turn move rollers 8 and 11, disengaging them from connecting block 2. This allows plate 3 and plate 4 to be removed from the slot of plate 1. After removal, plate 1, plate 3, and plate 4 can be loaded onto a vehicle. Upon reaching the shore, plate 3 and plate 4 are aligned with connecting block 2, and then pushed to move them. This movement moves sliding plates 6 and 9, which in turn move locking housings 7 and 10. The movement of the snap-fit ​​shell 7 and snap-fit ​​shell 10 causes the rollers 8 and 11 to move. At this time, the rollers 8 and 11 will contact the inclined surface of the connecting block 2, thereby causing the rollers 8 and 11 to compress the springs and retract. Then, the rollers 8 and 11 drive the snap-fit ​​shell 10 and snap-fit ​​shell 7 to move. After the rollers 8 and 11 enter the slot of the connecting block 2, the snap-fit ​​shell 7 and snap-fit ​​shell 10 will be reset by the spring and enter the connecting block 2, thus allowing the surfboard to be quickly disassembled. After disassembly, the size is greatly reduced, making it suitable for car trunks, backpacks, or air transport, solving the pain points of longboards being difficult to carry and store. At the same time, different board noses can be changed for different environments, thus adapting to different surfers. Partial damage can be replaced with individual parts without scrapping the whole board, reducing maintenance costs and extending service life. To reduce the weight of the surfboard during surfing, the interior of board 1 is designed to be hollow. The surfer moves by stepping on board 12 with their feet. The forward movement of board 12 moves sliding block 13, which in turn compresses the spring between board 1 and board 1. Simultaneously, board 12 moves connecting rod 14, which in turn moves moving board 15. This causes moving board 15 to align its internal hollow groove with the internal hollow groove of board 1, placing the surfboard in a hollow state. This allows for precise matching of buoyancy needs to users of different weights and heights, preventing top-heavy or excessive buoyancy, improving the smoothness of takeoff, and reducing sinking resistance in the water by minimizing excess weight, resulting in smoother gliding and longer ride time.

[0032] Example 2: Please see Figures 5-6 Based on the above embodiments, in another embodiment of the present invention, the hollow weight-reducing surfboard further includes an anti-clogging mechanism 16 installed on the third plate 4, which is used to clean impurities at the propulsion port; The anti-clogging mechanism 16 includes a propulsion device 161 mounted on plate 3 4, a rotating shaft 162 mounted on the output end of the propulsion device 161, a fan 163 mounted on the rotating shaft 162, a partition 164 mounted inside the propulsion device 161, a rotating rod 165 mounted on the circumferential surface of the rotating shaft 162, and a fixing ring 166 mounted on the rotating rod 165. The rotating shaft 162 is in contact with the inside of the partition 164, the rotating rod 165 is in contact with the outer wall of the partition 164, and the inside of the fixing ring 166 is in contact with the propulsion device 161.

[0033] Furthermore, it should be noted that a power supply device and a processor may also be provided in this application. The power supply device supplies power to the propulsion device 161 and other functions, and the processor ultimately controls the propulsion device 161. As an example, the power supply device may be a battery pack or municipal power supply equipment, and the processor may be an existing device. This embodiment will not elaborate further. In this embodiment, the electrical connection of each device adopts a conventional continuous connection method.

[0034] The rotating shaft 162 drives the rotating rod 165 to rotate and move the surfboard.

[0035] The anti-clogging mechanism 16 also includes a C-shaped plate 169 installed inside the plate 1, an extension plate 168 installed on the C-shaped plate 169, and a trapezoidal block 167 installed on the extension plate 168.

[0036] A spring is provided between the C-shaped plate 169 and the plate 1. The outer wall of the trapezoidal block 167 has an inclined surface. The inclined surface of the trapezoidal block 167 contacts the inclined surface of the moving plate 15. The outer wall of the extension plate 168 contacts the interior of the plate 1.

[0037] Among them, the extension plate 168 extends out of plate 1, increasing the contact area with seawater. In this embodiment, during surfing, the surfer can control the power source via a handheld controller, activating the power source inside section two 3 to drive the propulsion device 161. The propulsion device 161 drives the rotating shaft 162 to rotate via its output end. The rotating shaft 162 drives the fan 163 to rotate, and the rotation of the fan 163 propels section three 4 forward. The partition 164 provides protection during the propulsion of the fan 163. At the same time, the rotation of the rotating shaft 162 drives the rotating rod 165 to rotate. The rotating rod 165 contacts the partition 164, thereby cleaning off the attached seaweed, preventing entanglement and jamming, damage to the guide vanes, and preventing motor overload and bearing wear. This significantly reduces the repair rate and maintenance costs, prevents water inlet blockage leading to insufficient flow and thrust reduction, maintains acceleration, cruising, and braking stability, and avoids mid-flight stalling that affects the experience. Furthermore, the partition 164 does not affect the continuity of use; damaged sections can be replaced individually without requiring repair of the entire propulsion unit. During buffering, the stepping plate 12 can drive the moving plate 15 to move backward. The moving plate 15 will contact the inclined surface of the trapezoidal block 167 through the inclined surface, thereby squeezing the trapezoidal block 167 to move to both sides. The trapezoidal block 167 drives the extension plate 168 to move, and the extension plate 168 drives the C-shaped plate 169 to move. The movement of the C-shaped plate 169 will compress the spring between it and the plate 1. At the same time, the extension plate 168 will extend out of the interior of the plate 1, thereby increasing the area between the extension plate 168 and the water surface, making the buffering more stable, preventing the board from swaying left and right or sinking easily due to the impact of the wave, reducing the thrust attenuation caused by water resistance turbulence, making the power output smoother, and making the acceleration after buffering easier. This can be turned off when gliding at high speed or surfing in large waves to avoid increasing unnecessary resistance and affecting the top speed and turning explosive power.

[0038] Example 3: Please see Figures 7-8 Based on the above embodiments, in another embodiment of the present invention, the hollow weight-reducing surfboard further includes an anti-fall mechanism 17 installed on the first plate 1 for adjusting the buffer plate surface during surfing; The anti-fall mechanism 17 includes a round rod 171 installed inside the plate 1 and a limiting plate 172 installed on the round rod 171. The limiting plate 172 contacts the outer wall of the moving plate 15, and a spring is sleeved on the circumferential surface of the round rod 171.

[0039] The step plate 12 has a slot, and the limiting plate 172 contacts the slot. When the step plate 12 moves, it will contact the inclined surface of the limiting plate 172 through the inclined surface, thereby driving the limiting plate 172 to move and locking the slot.

[0040] The anti-fall mechanism 17 also includes a control buffer mechanism installed inside the board 1. The control buffer mechanism includes a left control buffer mechanism and at least one right control buffer mechanism that is spaced apart from the left control buffer mechanism, for preventing the surfboard from decelerating and losing control. The left and right control buffer mechanisms each include a sliding rod 173 installed inside the plate 1, a hinge block 175 installed inside the sliding rod 173, a telescopic pedal 174 installed on the hinge block 175, a sliding block 176 installed inside the sliding rod 173, and an adjustment plate 177 installed inside the plate 1.

[0041] A spring is provided between the sliding rod 173 and the plate 1. The fixed end of the telescopic pedal 174 is hinged to the plate 1 via a torsion spring. The inside of the adjusting plate 177 is provided with a sliding groove. The sliding block 176 is slidably embedded in the sliding groove inside the adjusting plate 177.

[0042] In this embodiment, when the slot is opened, the step plate 12 drives the moving plate 15 to overlap with the slot. At the same time, the step plate 12 moves and contacts the inclined surface of the limiting plate 172 through the inclined surface, thereby driving the limiting plate 172 to move. The limiting plate 172 drives the round rod 171 to move. The movement of the round rod 171 will compress the spring between the plate 1 and the plate 1. When the limiting plate 172 enters the step plate 12, the limiting plate 172 will self-lock with the step plate 12 through the elastic reset of the spring. It will not rebound due to water pressure, continuously providing stability and avoiding mid-term failure that may cause bumps or flipping. The state can be adjusted instantly, and there is no need to worry about incomplete locking. In the locked state, it fits the plate body with zero gaps to reduce water resistance, ensuring high speed and acceleration performance, and avoiding loosening that may cause turbulence and slow down the speed. When surfing, if cushioning adjustment is needed, the surfer can move the retractable pedal 174 by pressing down on it with their foot. The movement of the retractable pedal 174 moves the hinge block 175, which in turn moves the sliding rod 173 via the hinge point. The sliding rod 173 compresses the spring, and simultaneously, it moves the sliding block 176 via the hinge point. The sliding block 176 slides along the groove of the adjusting plate 177, and this sliding motion... The adjustment plate 177 rotates with the hinge point with plate 1, so stepping on the left side will adjust the left side and stepping on the right side will adjust the right side for cushioning. When the foot leaves the telescopic pedal 174, the telescopic pedal 174 will be reset by the torsion spring between it and plate 1 and the spring between plate 1, increasing the buoyancy and resistance of the board, weakening the impact of the surge, and preventing the board nose from getting waterlogged and the body from being overturned by the waves. At the same time, it can adjust the water resistance, improve the gliding speed and endurance, ensure the efficiency of starting and chasing waves, reduce the impact of water flow in the cushioning state, and reduce the probability of debris getting in and motor overload.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hollowed-out weight-reducing surfboard, comprising a first plate (1), a connecting block (2) fixedly installed on the first plate (1), a second plate (3) slidably embedded on the connecting block (2), a third plate (4) slidably embedded on the connecting block (2), a tail fin (5) fixedly installed on the third plate (4), a slot being formed in the second plate (3), a slot being formed in the third plate (4), the second plate (3) contacting the outer wall of the first plate (1), the first plate (1) contacting the outer wall of the third plate (4), and a hollowed-out groove being formed on the outer wall of the first plate (1), characterized in that, The hollowed-out weight-reducing surfboard also includes a multi-section assembly mechanism installed on the second plate (3) and a sliding mechanism installed on the first plate (1); The multi-segment assembly mechanism includes a sliding plate 1 (6) installed inside the second plate (3), a snap-fit ​​shell 1 (7) installed on the sliding plate 1 (6), a roller 1 (8) installed inside the snap-fit ​​shell 1 (7), a sliding plate 2 (9) installed inside the third plate (4), a snap-fit ​​shell 2 (10) installed on the sliding plate 2 (9), and a roller 2 (11) installed inside the snap-fit ​​shell 2 (10). The outer wall of the sliding plate 1 (6) is fitted with a spring, and the outer wall of the snap-fit ​​shell 1 (7) contacts the inside of the snap-fit ​​groove of the second plate (3). The circumferential surface of roller one (8) contacts the inside of the slot of plate two (3), the snap-fit ​​shell one (7) contacts the inside of the connecting block (2), the circumferential surface of roller one (8) contacts the inside of the connecting block (2), the outer wall of sliding plate two (9) is fitted with a spring, the outer wall of snap-fit ​​shell two (10) contacts the inside of the slot of plate three (4), the circumferential surface of roller two (11) contacts the inside of the slot of plate three (4), the snap-fit ​​shell two (10) contacts the inside of the connecting block (2), and the circumferential surface of roller two (11) contacts the inside of the connecting block (2).

2. The hollowed-out weight-reducing surfboard according to claim 1, characterized in that: The sliding mechanism includes a sliding block (13) mounted on the first plate (1), a step plate (12) mounted on the sliding block (13), a connecting rod (14) mounted on the step plate (12), and a moving plate (15) mounted on the connecting rod (14).

3. The hollowed-out weight-reducing surfboard according to claim 2, characterized in that: A spring is provided between the sliding block (13) and the first plate (1). The outer wall of the step plate (12) is in contact with the first plate (1). An inclined surface is provided on the front side of the step plate (12). The connecting rod (14) is in contact with the interior of the first plate (1). The moving plate (15) is slidably embedded in the interior of the first plate (1). A hollow groove is provided inside the moving plate (15). An inclined surface is provided on the outer wall of the moving plate (15).

4. The hollowed-out weight-reducing surfboard according to claim 3, characterized in that: The hollowed-out weight-reducing surfboard also includes an anti-clogging mechanism (16) installed on the third plate (4) for cleaning impurities at the propulsion port; The anti-clogging mechanism (16) includes a propulsion device (161) installed on the third plate (4), a rotating shaft (162) installed at the output end of the propulsion device (161), a fan (163) installed on the rotating shaft (162), a partition (164) installed inside the propulsion device (161), a rotating rod (165) installed on the circumferential surface of the rotating shaft (162), and a fixing ring (166) installed on the rotating rod (165). The rotating shaft (162) is in contact with the inside of the partition (164), the rotating rod (165) is in contact with the outer wall of the partition (164), and the inside of the fixing ring (166) is in contact with the propulsion device (161).

5. The hollowed-out weight-reducing surfboard according to claim 4, characterized in that: The anti-blocking mechanism (16) further includes a C-shaped plate (169) installed inside the plate (1), an extension plate (168) installed on the C-shaped plate (169), and a trapezoidal block (167) installed on the extension plate (168).

6. The hollowed-out weight-reducing surfboard according to claim 5, characterized in that: A spring is provided between the C-shaped plate (169) and the first plate (1). The outer wall of the trapezoidal block (167) has an inclined surface. The inclined surface of the trapezoidal block (167) contacts the inclined surface of the moving plate (15). The outer wall of the extension plate (168) contacts the interior of the first plate (1).

7. The hollowed-out weight-reducing surfboard according to claim 6, characterized in that: The hollowed-out weight-reducing surfboard also includes an anti-fall mechanism (17) installed on the first plate (1) for adjusting the buffer plate surface during surfing; The anti-fall mechanism (17) includes a round rod (171) installed inside the plate (1) and a limiting plate (172) installed on the round rod (171). The limiting plate (172) contacts the outer wall of the moving plate (15), and a spring is sleeved on the circumferential surface of the round rod (171).

8. The hollowed-out weight-reducing surfboard according to claim 7, characterized in that: The anti-fall mechanism (17) also includes a control buffer mechanism installed inside the plate (1). The control buffer mechanism includes a left control buffer mechanism and at least one right control buffer mechanism that is spaced apart from the left control buffer mechanism, for preventing the surfboard from decelerating and losing control. The left control buffer mechanism and the right control buffer mechanism each include a sliding rod (173) installed inside the first plate (1), a hinge block (175) installed inside the sliding rod (173), a telescopic pedal (174) installed on the hinge block (175), a sliding block (176) installed inside the sliding rod (173), and an adjustment plate (177) installed inside the first plate (1).

9. The hollowed-out weight-reducing surfboard according to claim 8, characterized in that: A spring is provided between the sliding rod (173) and the first plate (1). The fixed end of the telescopic pedal (174) is hinged to the first plate (1) by a torsion spring. A sliding groove is provided inside the adjusting plate (177). The sliding block (176) is slidably embedded in the sliding groove inside the adjusting plate (177).

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