Electric hydrofoil

Abstract

The invention provides an electric hydrofoil, and relates to the technical field of hydrofoils. The electric hydrofoil comprises a floating plate, a vertical rod assembly arranged on the lower wall of the floating plate, a battery bin arranged in the floating plate, a battery pack, a controller and a bin cover rotationally connected to the upper wall of the battery bin. According to the invention, the vacuum pump is adopted to form negative pressure in the battery compartment, the battery compartment and the compartment cover are more tightly combined through extrusion of external air pressure, and then the first sealing piece is matched, so that the waterproof problem is fundamentally solved; the fixing plate on the vertical rod assembly is pushed into the clamping groove in the lower side of the fixing base, the vertical rod assembly is manually flattened, and then the hand-turned screw is inserted and tightened, so that mounting and fixing can be completed, mounting and dismounting are very efficient, and through the integrated design, connecting lines of all parts are concentrated on one connector; during use, any one plug can be selected to be plugged with a to-be-connected part, so that the connection operation is simple and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrofoils, and in particular to an electric hydrofoil with a function of quickly disassembling and assembling a vertical pole assembly and a battery compartment with good waterproof effect. Background Art

[0002] With the booming development of water sports, electric hydrofoils have also become popular water sports equipment. Electric hydrofoils are driven by their own electric motors on the water, allowing users to experience surfing even in waveless waters.

[0003] In the prior art, electric hydrofoils have the following disadvantages: first, the battery compartment is not waterproof, mainly due to poor stability. After a period of use, it is easy to get water in, causing problems such as internal components being soaked in water, rusting, and poor contact; second, each time the vertical pole is installed, a wrench tool is required to tighten multiple screws separately, which is laborious and cumbersome to operate, and a wrench is also required to unscrew them separately when disassembling; third, the electric hydrofoil has three major components: battery / motor / control box, and they need to be disassembled and used repeatedly. In order to effectively connect them, they generally include connecting wires such as battery positive and negative poles, signal wires, and three motor wires. In this way, users need to plug in multiple connectors when using, which is troublesome to use and requires frequent maintenance;

[0004] In order to solve the above problems, it is necessary to optimize and improve the existing electric hydrofoil structure. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides an electric hydrofoil, which solves the problems that the battery compartment of the existing electric hydrofoil has poor waterproof effect, the installation operation of the upright part is laborious and cumbersome, and multiple connectors need to be connected when the battery / motor / control box is used.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an electric hydrofoil, comprising a float, a pole assembly arranged on the lower wall of the float, a battery compartment arranged inside the float, a battery pack, a controller, and a compartment cover rotatably connected to the upper wall of the battery compartment, the upper wall of the battery compartment is flush with the upper wall of the float, the lower wall of the battery compartment is flush with the lower wall of the float, the lower wall of the battery compartment is fixedly connected to a fixing seat, the upper end of the pole assembly is fixedly connected to a fixing plate, the fixing plate is detachably connected to the fixing seat through a quick-release structure, the battery pack and the controller are both arranged on the lower inner wall of the battery compartment, and the battery pack , the controller and the upright pole assembly are connected by a connector, two groups of lock holes are provided on the upper wall of the compartment cover, the inner walls of the two groups of lock holes are rotatably connected with knobs, the lower end of the knob passes through the inner lower wall of the lock hole and extends to the lower side of the compartment cover, a first sealing structure is provided between the knob and the lock hole and between the compartment cover and the battery compartment, the lower end of the knob is fixedly connected with a lock tongue through a rotating rod, the inner left wall and the inner right wall of the battery compartment are provided with lock blocks for cooperating with the two groups of lock tongues, a valve hole is provided on the upper wall of the compartment cover and located between the two groups of lock holes, and a press-type exhaust valve is provided on the inner lower wall of the valve hole.

[0009] Preferably, the push-type exhaust valve consists of a joint, a valve shell, a pressing head, a sliding block and a valve core, the joint is fixedly connected to the lower inner wall of the valve hole in a through-shape and the lower end of the joint extends to the lower side of the compartment cover, the valve shell is fixedly connected to the upper end of the joint, a valve cavity is provided inside the valve shell, the inner wall of the joint is provided with a through hole which passes through up and down, the sliding block is slidably connected inside the valve cavity, the valve core is fixedly connected to the lower end of the sliding block, one end of the valve core away from the sliding block passes through the inner wall of the through hole and is slidably connected thereto, the pressing head is fixedly connected to the upper end of the sliding block, the end of the pressing head away from the sliding block passes through the upper wall of the valve shell and extends to the upper side of the valve shell, a ventilation structure is provided between the valve core and the valve shell, a second sealing structure is provided between the valve core and the through hole and between the sliding block and the inner wall of the valve cavity, and the interior of the battery compartment is sucked into a negative pressure state by a vacuum pump.

[0010] Preferably, the quick-release structure includes a back plate, a bottom plate, hand screws and two groups of side plates, the two groups of side plates are fixedly connected to the lower wall of the fixing seat and are respectively close to the left and right sides of the fixing seat, the back plate is fixedly connected to the rear ends of the two groups of side plates and the upper side of the back plate is fixedly connected to the lower wall of the fixing seat, the bottom plate is fixedly connected to the front wall of the back plate and is close to the lower wall of the back plate, and a slot adapted to the fixing plate is formed on the lower side of the fixing seat, between the opposite sides of the two groups of side plates, and between the front side of the back plate and the upper side of the bottom plate, and the fixing plate is clamped with the fixing seat via the slot.

[0011] Preferably, a threaded hole is provided at the bottom of the battery compartment, and the inner walls of the fixing seat and the fixing plate are provided with through holes opposite to the threaded hole up and down, the hand screws are provided on the inner walls of the two groups of through holes, and one end of the hand screw extending into the through hole is threadedly connected to the threaded hole, and the fixing seat, the fixing plate and the lower wall of the battery compartment are detachably connected by the hand screws.

[0012] Preferably, the connector is provided with three groups of plugs and the three groups of plugs are each provided with a positive line, a negative line and a Bluetooth control signal line, and the structures of the three groups of plugs are completely consistent.

[0013] Preferably, the first sealing structure includes three groups of first sealing members, and the three groups of first sealing members are respectively arranged between the battery compartment and the compartment cover, and between the two groups of knob outer walls and the two groups of lock hole inner walls.

[0014] Preferably, the ventilation structure includes a connecting hole, a first air hole, a second air hole and a third air hole. The connecting hole is arranged on the inner wall of the valve core and the connecting hole does not penetrate the lower wall of the valve core. The first air hole and the second air hole are arranged on the side wall of the valve core according to the upper and lower distribution, and the ends of the first air hole and the second air hole facing the center of the valve core are penetrated by the connecting hole. The first air hole and the second air hole are respectively close to the upper and lower ends of the valve core, and the third air hole is arranged on the outer wall of the valve shell and is located at the end close to the joint.

[0015] Preferably, a spring is sleeved on the outer wall of the valve core and located inside the valve cavity, and the upper and lower ends of the spring are respectively abutted against the lower end of the sliding block and the upper end of the joint. When the spring is in a free state, the second air hole is located inside the through hole, and when the spring is squeezed by pressing the pressing head, the second air hole extends to the lower side of the joint.

[0016] Preferably, the second sealing structure includes two groups of second seals, and the two groups of second seals are respectively arranged on the outer wall of the valve core and the outer wall of the sliding block. The second seal on the outer wall of the valve core is located near the lower end of the valve core and the outer wall of the second seal is slidably connected to the inner wall of the through hole. The second seal on the outer wall of the sliding block is located near the upper end of the sliding block and the outer wall of the second seal is slidably connected to the inner wall of the valve cavity.

[0017] (III) Beneficial effects

[0018] The present invention provides an electric hydrofoil having the following beneficial effects:

[0019] 1. Compared with the existing technology, the electric hydrofoil, after the compartment cover and the battery compartment are locked by the lock tongue and the lock block, a vacuum pump is used to form a negative pressure inside the battery compartment. The internal pressure is less than the external pressure, and the external air pressure squeezes the battery compartment and the compartment cover more tightly. Combined with the first seal located at the connection between the battery compartment and the compartment cover, the waterproof problem is fundamentally solved, and the stability is very good. When the cover needs to be opened, it can be easily opened by manually pressing to release the pressure.

[0020] 2. Compared with the prior art, when using the electric hydrofoil, the fixing seat can be first locked to the lower wall of the battery compartment. As a part of the floating plate, the fixing seat does not need to be disassembled and replaced later. When assembling the vertical pole assembly, the fixing plate on the vertical pole assembly can be pushed into the slot on the lower side of the fixing seat, the vertical pole assembly can be manually flattened, and then the hand screws can be inserted and tightened to complete the installation and fixation. When disassembling, the reverse operation can be performed. Both installation and disassembly are very efficient.

[0021] 3. Compared with the existing technology, the electric hydrofoil, through integrated design, concentrates the connecting wires of various parts on one connector to form a multifunctional integrated connector. When in use, you can select any plug to be connected to the connection point, making the connection operation simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention from a right rear perspective;

[0023] Figure 2 It is a schematic diagram of the connection structure between the upright pole assembly and the floating plate of the present invention;

[0024] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle A;

[0025] Figure 4 It is a schematic diagram of the connection structure of the fixing seat, the side plate, the rear plate and the bottom plate of the present invention;

[0026] Figure 5 It is a top view schematic diagram of the connection structure of the floating plate, the battery compartment and the compartment cover of the present invention;

[0027] Figure 6 It is a schematic diagram of a partial cross-section of the internal structure of the battery compartment and the compartment cover connection structure of the present invention;

[0028] Figure 7 For the present invention Figure 6 A partial enlarged view of point B in the middle;

[0029] Figure 8 A partial cross-sectional view of the internal structure of the push-type exhaust valve of the present invention;

[0030] Fig. 9 It is a top view schematic diagram of the internal structure of the battery compartment of the present invention.

[0031] Among them, 1. floating plate; 2. upright pole assembly; 3. battery compartment; 4. compartment cover; 5. lock hole; 6. knob; 7. fixing seat; 8. fixing plate; 9. side plate; 10. back plate; 11. bottom plate; 12. through hole; 13. valve hole; 14. hand screw; 15. vacuum pump; 16. first sealing member; 17. rotating rod; 18. locking tongue; 19. locking block; 20. connector; 21. joint; 22. valve housing; 23. pressing head; 24. valve core; 25. spring; 26. connecting hole; 27. first air hole; 28. second air hole; 29. ​​second sealing member; 30. battery pack; 31. controller; 32. third air hole; 33. sliding block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example:

[0034] like Figures 1 to 9 The embodiment of the present invention provides an electric hydrofoil, comprising a floating plate 1, a pole assembly 2 arranged on the lower wall of the floating plate 1, a battery compartment 3 arranged inside the floating plate 1, a battery pack 30, a controller 31, a vacuum pump 15, and a compartment cover 4 rotatably connected to the upper wall of the battery compartment 3. In this embodiment, the floating plate 1, the battery compartment 3, the battery pack 30, the controller 31, and the pole assembly 2 are consistent with the structure and function of the prior art. In this embodiment, the installation of the pole assembly 2, the connection between the propeller on the pole assembly 2 and the battery pack 30, the controller 31, and the waterproof structure inside the battery compartment 3 are optimized and improved, so that the pole assembly 2 is easy to install and disassemble, the waterproof effect inside the battery compartment 3 is improved, and the wiring method is simplified and efficient.

[0035] like Figure 1 , Figure 5 by Figure 6 As shown, in order to lock the compartment cover 4 and the battery compartment 3, two groups of lock holes 5 are provided on the upper wall of the compartment cover 4, and the inner walls of the two groups of lock holes 5 are rotatably connected with knobs 6. The lower end of the knob 6 passes through the inner lower wall of the lock hole 5 and extends to the lower side of the compartment cover 4. The lower end of the knob 6 is fixedly connected with a lock tongue 18 through a rotating rod 17. The inner left wall and the inner right wall of the battery compartment 3 are both provided with lock blocks 19 for cooperating with the two groups of lock tongues 18. The compartment cover 4 is closed, and the rotating rod 17 is driven to rotate by rotating the knob 6. When the rotating rod 17 rotates, the lock tongue 18 is driven to rotate. When the lock tongue 18 rotates to the bottom of the lock block 19, the lock block 19 restricts the lock tongue 18 in the upward direction, thereby forming an opening restriction on the compartment cover 4;

[0036] like Figure 2 , Figure 3 as well as Figure 4 As shown, in order to realize the function of quick disassembly and assembly of the upright pole assembly 2, the upper wall of the battery compartment 3 is flush with the upper wall of the floating plate 1, the lower wall of the battery compartment 3 is flush with the lower wall of the floating plate 1, the lower wall of the battery compartment 3 is fixedly connected with a fixing seat 7, and the upper end of the upright pole assembly 2 is fixedly connected with a fixing plate 8, and the fixing plate 8 is detachably connected to the fixing seat 7 through a quick-release structure. The quick-release structure includes a rear plate 10, a bottom plate 11, a hand screw 14 and two groups of side plates 9, the two groups of side plates 9 are fixedly connected to the lower wall of the fixing seat 7 and are respectively close to the left and right sides of the fixing seat 7, the rear plate 10 is fixedly connected to the rear ends of the two groups of side plates 9 and the upper side of the rear plate 10 is fixedly connected to the lower wall of the fixing seat 7, the bottom plate 11 is fixedly connected to the front wall of the rear plate 10 and is close to the lower wall of the rear plate 10, the lower side of the fixing seat 7, the opposite side of the two groups of side plates 9, and the rear A card slot adapted to the fixing plate 8 is formed between the front side of the plate 10 and the upper side of the bottom plate 11, and the fixing plate 8 is connected to the fixing seat 7 through the card slot. A threaded hole is provided at the bottom of the battery compartment 3, and the inner walls of the fixing seat 7 and the fixing plate 8 are provided with through holes 12 opposite to the threaded holes up and down. A hand screw 14 is provided on the inner side wall of the two groups of through holes 12, and one end of the hand screw 14 extending into the through hole 12 is threadedly connected with the threaded hole. The fixing seat 7, the fixing plate 8 and the lower wall of the battery compartment 3 are detachably connected by the hand screw 14, and the assembly type, the upright pole assembly 2 is inserted into the card slot through the fixing plate 8 and connected to the fixing seat 7, and then the hand screw 14 is inserted into the threaded hole through the two groups of through holes 12 and tightened to form a locking structure, which can achieve the purpose of quick installation, and the reverse operation can be performed when disassembling;

[0037] like Figure 6 , Fig. 9 As shown, in order to simplify the power connection operation, the battery pack 30 and the controller 31 are both arranged on the lower wall of the inner side of the battery compartment 3. The battery pack 30, the controller 31 and the pole assembly 2 are connected through a connector 20. The connector 20 is provided with three sets of plugs, and the three sets of plugs are provided with positive lines, negative lines and Bluetooth control signal lines inside. The three sets of plugs have completely the same structure, and the connecting lines of various parts are concentrated on one connector 20 to form a multifunctional integrated connector 20. When in use, one plug can be arbitrarily selected to be plugged into the connection point, making the connection operation simple and efficient.

[0038] like Figure 1 , Figure 5 , Figure 6 , Figure 7 as well as Figure 8As shown, in order to facilitate the opening of the bin cover 4, a valve hole 13 is provided on the upper wall of the bin cover 4 and between the two groups of lock holes 5, and a push-type exhaust valve is provided on the inner lower wall of the valve hole 13, which is composed of a joint 21, a valve shell 22, a pressing head 23, a sliding block 33 and a valve core 24. The joint 21 is fixedly connected to the inner lower wall of the valve hole 13 in a through-shape, and the lower end of the joint 21 extends to the lower side of the bin cover 4, the valve shell 22 is fixedly connected to the upper end of the joint 21, a valve cavity is provided inside the valve shell 22, a through hole that penetrates up and down is provided on the inner wall of the joint 21, a sliding block 33 is slidably connected inside the valve cavity, the valve core 24 is fixedly connected to the lower end of the sliding block 33, and the end of the valve core 24 away from the sliding block 33 penetrates the inner wall of the through hole and is slidably connected thereto, and the pressing head 23 is fixedly connected At the upper end of the sliding block 33, one end of the pressing head 23 away from the sliding block 33 penetrates the upper wall of the valve shell 22 and extends to the upper side of the valve shell 22. A spring 25 is sleeved on the outer wall of the valve core 24 and located inside the valve cavity. The upper and lower ends of the spring 25 are respectively abutted against the lower end of the sliding block 33 and the upper end of the joint 21. When the spring 25 is in a free state, the second air hole 28 is located inside the through hole. When the spring 25 is pressed by pressing the pressing head 23, the second air hole 28 extends to the lower side of the joint 21. The function of the spring 25 is to keep the sliding block 33 lifted when the pressing head 23 is not pressed, and to keep the press-type exhaust valve in the closed state. A press-type exhaust valve is provided on the compartment cover 4. When necessary, the pressing head 23 can be pressed to allow air to enter the battery compartment 3 and lose the negative pressure state, so as to open the compartment cover 4.

[0039] like Figure 7 , Figure 8 As shown, in order to realize the push-to-exhaust and release-to-cut-off functions of the push-to-exhaust valve, a ventilation structure is provided between the valve core 24 and the valve housing 22, and the ventilation structure includes a connecting hole 26, a first air hole 27, a second air hole 28 and a third air hole 32. The connecting hole 26 is provided on the inner wall of the valve core 24 and the connecting hole 26 does not penetrate the lower wall of the valve core 24. The first air hole 27 and the second air hole 28 are both provided on the side wall of the valve core 24 according to the upper and lower distribution, and the ends of the first air hole 27 and the second air hole 28 facing the center of the valve core 24 are both penetrated by the connecting hole 26. The first air hole 27 and the second air hole 28 are respectively close to the upper and lower ends of the valve core 24, and the third air hole 32 is provided on the outer wall of the valve housing 22 and is located at an end close to the joint 21 When the spring 25 is in a free state, the sliding block 33 is pushed up to the upper stroke. At this time, the second air hole 28 is located on the inner wall of the through hole. The second sealing member 29 on the outer wall of the valve core 24 keeps the interior of the battery compartment 3 sealed from the outside. When the pressing head 23 is pressed to move the sliding block 33 downward, the valve core 24 is driven to move downward until the second air hole 28 is moved below the joint 21. At this time, the interior of the battery compartment 3 is connected to the outside through the second air hole 28, the connecting hole 26, the first air hole 27 and the third air hole 32. The external air quickly enters the battery compartment 3 through the passage, so that the negative pressure state inside the battery compartment 3 is released. At this time, the knob 6 is turned to release the locking state of the lock tongue 18 and the lock block 19 to open the compartment cover 4;

[0040] like Figure 7 , Figure 8 As shown, in order to maintain the sealing performance inside the push-type exhaust valve, a second sealing structure is provided between the valve core 24 and the through hole and between the sliding block 33 and the inner wall of the valve cavity. The second sealing structure includes two groups of second sealing members 29, which are respectively provided on the outer wall of the valve core 24 and the outer wall of the sliding block 33. The second sealing member 29 on the outer wall of the valve core 24 is located near the lower end of the valve core 24 and the outer wall of the second sealing member 29 is slidably connected to the inner wall of the through hole. The second sealing member 29 on the outer wall of the sliding block 33 is located near the upper end of the sliding block 33 and the outer wall of the second sealing member 29 is slidably connected to the inner wall of the valve cavity. Through the two groups of second sealing members 29, the sealing effect is achieved when the push-type exhaust valve is in the cut-off state.

[0041] like Figure 6 As shown, in order to facilitate the formation of a negative pressure state inside the battery compartment 3, a first sealing structure is arranged between the knob 6 and the lock hole 5 and between the compartment cover 4 and the battery compartment 3. The first sealing structure includes three groups of first sealing members 16. The three groups of first sealing members 16 are respectively arranged between the battery compartment 3 and the compartment cover 4, between the two groups of outer walls of the knobs 6 and the two groups of inner walls of the lock holes 5. The battery compartment 3 and the compartment cover 4, as well as the knob 6 and the lock hole 5 are sealed by the three groups of first sealing members 16. A sealed state is formed after the compartment cover 4 is closed, so that a negative pressure inside the battery compartment 3 can be formed by adsorption by the vacuum pump 15.

[0042] like Figure 1 , Figure 6 As shown, in order to improve the waterproof effect of the battery compartment 3, the lower end of the vacuum pump 15 is detachably connected to the inner wall of the valve hole 13. When the vacuum pump 15 is detachably connected to the inner wall of the valve hole 13, the lower end of the vacuum pump 15 abuts against the upper end of the pressing head 23, and the interior of the battery compartment 3 is sucked into a negative pressure state by the vacuum pump 15. After the interior of the battery compartment 3 is sucked into a negative pressure by the vacuum pump 15, the external atmospheric pressure squeezes the battery compartment 3 and the compartment cover 4, so that the compartment cover 4 and the battery compartment 3 are more tightly combined, thereby achieving a better waterproof effect.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Electric hydrofoil, characterized by: The invention comprises a floating plate (1), a pole assembly (2) arranged on the lower wall of the floating plate (1), a battery compartment (3) arranged inside the floating plate (1), a battery pack (30), a controller (31), and a compartment cover (4) rotatably connected to the upper wall of the battery compartment (3), wherein the upper wall of the battery compartment (3) is flush with the upper wall of the floating plate (1), the lower wall of the battery compartment (3) is flush with the lower wall of the floating plate (1), the lower wall of the battery compartment (3) is fixedly connected to a fixing seat (7), the upper end of the pole assembly (2) is fixedly connected to a fixing plate (8), the fixing plate (8) is detachably connected to the fixing seat (7) via a quick-release structure, the battery pack (30) and the controller (31) are both arranged on the lower wall inside the battery compartment (3), and the battery pack (30), the controller (31) and the pole assembly (2) are connected to each other. The battery compartment (3) and the battery compartment (3) are connected by a connector (20), the upper wall of the compartment cover (4) is provided with two groups of lock holes (5), the inner side walls of the two groups of lock holes (5) are rotatably connected with knobs (6), the lower end of the knob (6) passes through the inner lower wall of the lock hole (5) and extends to the lower side of the compartment cover (4), a first sealing structure is provided between the knob (6) and the lock hole (5) and between the compartment cover (4) and the battery compartment (3), the lower end of the knob (6) is fixedly connected with a lock tongue (18) through a rotating rod (17), the inner left wall and the inner right wall of the battery compartment (3) are both provided with lock blocks (19) for matching with the two groups of lock tongues (18), the upper wall of the compartment cover (4) is provided with a valve hole (13) and is located between the two groups of lock holes (5), and the inner lower wall of the valve hole (13) is provided with a press-type exhaust valve.

2. The electric hydrofoil according to claim 1, characterized in that: The push-type exhaust valve is composed of a joint (21), a valve housing (22), a pressing head (23), a sliding block (33) and a valve core (24); the joint (21) is fixedly connected to the lower wall of the inner side of the valve hole (13) in a through-shaped manner, and the lower end of the joint (21) extends into the lower side of the bin cover (4); the valve housing (22) is fixedly connected to the upper end of the joint (21); a valve cavity is provided inside the valve housing (22); a through hole is provided on the inner wall of the joint (21) which is through-hole extending from top to bottom; a sliding block (33) is slidably connected inside the valve cavity; and the valve core (24) is fixedly connected to the lower end of the sliding block (33). The end of the valve core (24) away from the sliding block (33) passes through the inner wall of the through hole and is slidably connected thereto; the pressing head (23) is fixedly connected to the upper end of the sliding block (33); the end of the pressing head (23) away from the sliding block (33) passes through the upper wall of the valve shell (22) and extends to the upper side of the valve shell (22); a ventilation structure is provided between the valve core (24) and the valve shell (22); a second sealing structure is provided between the valve core (24) and the through hole and between the sliding block (33) and the inner wall of the valve cavity; the interior of the battery compartment (3) is sucked into a negative pressure state by a vacuum pump (15).

3. The electric hydrofoil according to claim 2, characterized in that: The quick-release structure comprises a rear plate (10), a bottom plate (11), a hand screw (14) and two groups of side plates (9); the two groups of side plates (9) are fixedly connected to the lower wall of the fixing seat (7) and are respectively close to the left and right sides of the fixing seat (7); the rear plate (10) is fixedly connected to the rear ends of the two groups of side plates (9) and the upper side of the rear plate (10) is fixedly connected to the lower wall of the fixing seat (7); the bottom plate (11) is fixedly connected to the front wall of the rear plate (10) and is close to the lower wall of the rear plate (10); a slot matching the fixing plate (8) is formed between the lower side of the fixing seat (7), between the opposite sides of the two groups of side plates (9), between the front side of the rear plate (10) and the upper side of the bottom plate (11); and the fixing plate (8) is clamped with the fixing seat (7) through the slot.

4. The electric hydrofoil according to claim 3, characterized in that: The bottom of the battery compartment (3) is provided with a threaded hole, the inner walls of the fixing seat (7) and the fixing plate (8) are provided with through holes (12) which are opposite to the threaded holes in upper and lower directions, the hand screws (14) are arranged on the inner side walls of the two groups of through holes (12), one end of the hand screws (14) extending into the through holes (12) is threadedly connected to the threaded holes, and the fixing seat (7), the fixing plate (8) and the lower wall of the battery compartment (3) are detachably connected via the hand screws (14).

5. The electric hydrofoil according to claim 4, characterized in that: The connector (20) is provided with three groups of plugs, and the three groups of plugs are provided with positive lines, negative lines and Bluetooth control signal lines inside, and the structures of the three groups of plugs are completely consistent.

6. The electric hydrofoil according to claim 5, characterized in that: The first sealing structure comprises three groups of first sealing members (16), and the three groups of first sealing members (16) are respectively arranged between the battery compartment (3) and the compartment cover (4), and between the outer walls of the two groups of knobs (6) and the inner walls of the two groups of lock holes (5).

7. The electric hydrofoil according to claim 6, characterized in that: The ventilation structure comprises a connecting hole (26), a first air hole (27), a second air hole (28) and a third air hole (32); the connecting hole (26) is arranged on the inner wall of the valve core (24) and the connecting hole (26) does not penetrate the lower wall of the valve core (24); the first air hole (27) and the second air hole (28) are arranged on the side wall of the valve core (24) in an upper and lower distribution; the ends of the first air hole (27) and the second air hole (28) facing the center of the valve core (24) are penetrated by the connecting hole (26); the first air hole (27) and the second air hole (28) are respectively close to the upper and lower ends of the valve core (24); the third air hole (32) is arranged on the outer wall of the valve housing (22) and is located at an end close to the joint (21).

8. The electric hydrofoil according to claim 7, characterized in that: A spring (25) is sleeved on the outer wall of the valve core (24) and located inside the valve cavity. The upper and lower ends of the spring (25) are respectively in contact with the lower end of the sliding block (33) and the upper end of the joint (21). When the spring (25) is in a free state, the second air hole (28) is located inside the through hole. When the spring (25) is squeezed by pressing the pressing head (23), the second air hole (28) extends to the lower side of the joint (21).

9. The electric hydrofoil according to claim 8, characterized in that: The second sealing structure comprises two groups of second sealing members (29), and the two groups of second sealing members (29) are respectively arranged on the outer wall of the valve core (24) and the outer wall of the sliding block (33); the second sealing member (29) on the outer wall of the valve core (24) is located near the lower end of the valve core (24) and the outer wall of the second sealing member (29) is slidably connected to the inner wall of the through hole; the second sealing member (29) on the outer wall of the sliding block (33) is located near the upper end of the sliding block (33) and the outer wall of the second sealing member (29) is slidably connected to the inner wall of the valve cavity.

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